This document discusses error handling in VBScript. It defines key terminology like faults, errors, failures, detectors, and exceptions. It explains the purpose of error handling to make software more reliable and protect systems from unacceptable behavior during errors. It also covers the On Error statement and its Resume Next and GoTo 0 options for controlling error handling. On Error Resume Next allows code to continue after errors but can mask problems, so careful debugging is required.
I regularly communicate with potential users who are worried about errors in C++ programs. Their worry is expressed in the following way: they try the PVS-Studio tool and start to write that it finds too few errors during tests. And although we feel that they find the tool interesting, still they their reaction is quite skeptical.
I regularly communicate with potential users who are worried about errors in C++ programs. Their worry is expressed in the following way: they try the PVS-Studio tool and start to write that it finds too few errors during tests. And although we feel that they find the tool interesting, still they their reaction is quite skeptical.
This document discusses exception handling in .NET. It defines what exceptions are, how they are handled using try, catch, and finally blocks, and common exception types in .NET like IndexOutOfRangeException and NullReferenceException. It explains that exceptions allow error handling code to be separated from the main program logic and that finally blocks ensure cleanup code is always executed.
The way static analyzers fight against false positives, and why they do itPVS-Studio
In my previous article I wrote that I don't like the approach of evaluating the efficiency of static analyzers with the help of synthetic tests. In that article, I give the example of a code fragment that the analyzer treats as a special case, and deliberately doesn't issue a warning for. To be honest, I didn't expect such an overflow of comments regarding the fact that an analyzer may not issue warnings because of the mechanisms of false positive elimination. In general the topic of battling against false positives is such a huge part of any static analyzer that it's really not clear what we can discuss here; but still, let's talk about it. Such mechanisms exist not only in our analyzer but also in another analyzers/compilers. Nevertheless, if this topic brought about so much discussion, I think it's worth talking about, and so I wrote this explanatory article.
- An error occurred during program execution that resulted in abnormal termination and wrong execution results.
- There are three main ways to handle exceptions in ASP.NET: using try-catch blocks, error events, and custom error pages.
- Try-catch blocks allow catching and handling specific exceptions, error events handle errors at the page and application level, and custom error pages display for all unhandled errors.
Best Coding Practices For Android Application DevelopmentKetan Raval
Learn how to make coding at the time of android application development. Best practices for coding for android app development. Points to take care at the time of development application.
If the coding bug is banal, it doesn't meant it's not crucialPVS-Studio
Spreading the word about PVS-Studio static analyzer, we usually write articles for programmers. However, some things are seen by programmers quite one-sided. That is why there are project managers who can help manage the process of the project development and guide it to the right direction. I decided to write a series of articles, whose target audience is project managers. These articles will help better understand the use of static code analysis methodology. Today we are going to consider a false postulate: "coding errors are insignificant".
I often hear in various interpretations the phrase: "The given examples show not the code incorrect from the viewpoint of porting to x64 systems, but the code incorrect in itself". I would like to discuss and theorize a bit on this point in the blog. Please, take this note with a bit of humor.
I regularly communicate with potential users who are worried about errors in C++ programs. Their worry is expressed in the following way: they try the PVS-Studio tool and start to write that it finds too few errors during tests. And although we feel that they find the tool interesting, still they their reaction is quite skeptical.
I regularly communicate with potential users who are worried about errors in C++ programs. Their worry is expressed in the following way: they try the PVS-Studio tool and start to write that it finds too few errors during tests. And although we feel that they find the tool interesting, still they their reaction is quite skeptical.
This document discusses exception handling in .NET. It defines what exceptions are, how they are handled using try, catch, and finally blocks, and common exception types in .NET like IndexOutOfRangeException and NullReferenceException. It explains that exceptions allow error handling code to be separated from the main program logic and that finally blocks ensure cleanup code is always executed.
The way static analyzers fight against false positives, and why they do itPVS-Studio
In my previous article I wrote that I don't like the approach of evaluating the efficiency of static analyzers with the help of synthetic tests. In that article, I give the example of a code fragment that the analyzer treats as a special case, and deliberately doesn't issue a warning for. To be honest, I didn't expect such an overflow of comments regarding the fact that an analyzer may not issue warnings because of the mechanisms of false positive elimination. In general the topic of battling against false positives is such a huge part of any static analyzer that it's really not clear what we can discuss here; but still, let's talk about it. Such mechanisms exist not only in our analyzer but also in another analyzers/compilers. Nevertheless, if this topic brought about so much discussion, I think it's worth talking about, and so I wrote this explanatory article.
- An error occurred during program execution that resulted in abnormal termination and wrong execution results.
- There are three main ways to handle exceptions in ASP.NET: using try-catch blocks, error events, and custom error pages.
- Try-catch blocks allow catching and handling specific exceptions, error events handle errors at the page and application level, and custom error pages display for all unhandled errors.
Best Coding Practices For Android Application DevelopmentKetan Raval
Learn how to make coding at the time of android application development. Best practices for coding for android app development. Points to take care at the time of development application.
If the coding bug is banal, it doesn't meant it's not crucialPVS-Studio
Spreading the word about PVS-Studio static analyzer, we usually write articles for programmers. However, some things are seen by programmers quite one-sided. That is why there are project managers who can help manage the process of the project development and guide it to the right direction. I decided to write a series of articles, whose target audience is project managers. These articles will help better understand the use of static code analysis methodology. Today we are going to consider a false postulate: "coding errors are insignificant".
I often hear in various interpretations the phrase: "The given examples show not the code incorrect from the viewpoint of porting to x64 systems, but the code incorrect in itself". I would like to discuss and theorize a bit on this point in the blog. Please, take this note with a bit of humor.
This document discusses exception handling in Java. It defines exceptions as errors that occur during program execution and disrupt normal flow. Exceptions are represented as objects that can be thrown and caught. There are two main types of exceptions - checked exceptions which must be handled, and unchecked exceptions which occur due to bugs and do not need to be handled. The try, catch, and finally keywords are used to handle exceptions. Custom exceptions can also be created by extending the Exception class.
This is the material that I prepared for gathering best practices in exception handling that we aim to follow. I used the content stated in the references section.
How to write an error handler.
Normally, it displays a message indicating the cause of the error and may also terminate script execution when a PHP script encounters an error.
Now, while this behavior is acceptable during the development phase, it cannot continue once a PHP application has been released to actual users.
In "live" situations, it is unprofessional to display cryptic error messages (which are usually incomprehensible to non-technical users).
It is more professional to intercept these errors and either resolve them (if resolution is possible), or notify the user with an easily-understood error message (if not).
This document discusses different types of errors in VB.net and methods for debugging them. It describes syntax errors, runtime errors, and logic errors. It then provides details on debugging techniques for each error type, such as using breakpoints, stepping through code, and monitoring variable values. Finally, it discusses error handling techniques like validating user input, activating error trapping with labels and exceptions, and testing to catch logic errors.
This document provides an overview of exception handling in Java. It discusses how to use try, catch, and throw blocks to handle exceptions and failures in code. The try block encloses code that might throw exceptions, catch blocks specify how to handle specific exceptions, and finally blocks contain cleanup code that always executes. The document outlines Java's exception hierarchy and differentiates between checked and unchecked exceptions. It provides examples of handling arithmetic and input mismatch exceptions.
Programming katas for Software Testers - CounterStringsAlan Richardson
What would be suitable Code Katas for people wanting to learn how to code to support their testing?
CounterStrings
- `*3*5*7*9*12*15*`
A CounterString is a string like this `*3*5*7*9*12*15*` where the `*` represent the position in the string of the number immediately proceeding it. This is a 15 character CounterString.
These are useful because if you paste them into a field, and are truncated then it is easy to see what they were truncated to, it is as James Bach describes it, self documenting test data.
https://www.eviltester.com/blog/eviltester/2019-02-27-programming-katas-for-testers/
The document discusses exception handling in programming languages. It begins by introducing exception handling and describing how exceptions are handled differently in languages with and without exception handling capabilities. It then covers exception handling in C++ and Java specifically. In C++, exceptions are bound to handlers through the type of a formal parameter, while in Java exceptions extend a Throwable class and are more easily bound based on class. The document also describes features like finally clauses and checked vs unchecked exceptions in Java.
FAQ - why does my code throw a null pointer exception - common reason #1 Rede...Alan Richardson
A common reason for Null Pointer Exceptions in Java is a variable redeclaration instead of instantiation. Learn what that means, how to avoid it, and how to spot it, in this presentation.
Read the full blog post: http://testerhq.com/post/blogs/javafortesters/2017-08-29-faq-null-pointer-exception/
Visit my Java Web Site: http://javafortesters.com
---
# FAQ - why does my code throw a null pointer exception - common reason #1 Redeclaration
- Using `@BeforeClass` or `@Before` can setup data for use in tests
- Any 'variables' we instantiate need to be 'fields' rather than variables
- We want to instantiate them in the setup method rather than redeclare them
---
# Example of the Problem
I know I will use an `Adder` in my test so I create it as a field:
~~~~~~~~
public class WhyCodeThrowsNullPointerExceptionTest {
Adder adder;
~~~~~~~~
I don't want to re-instantiate it each time so I make an `@BeforeClass` method to instantiate it:
~~~~~~~~
@BeforeClass
public static void setupAdder(){
Adder adder = new Adder();
}
~~~~~~~~
**Warning: Error in the above code**
---
# Semantic Error
I just made a Semantic coding error. This won't be caught by a compiler, but it will cause my `@Test` to fail with a Null Pointer Exception.
In the setup method I really wanted to assign a value to the field, instead I created an new variable with the same name.
# In General
- Try to write one test at a time so that if you have a problem it is easier to identify where the problem is
- Try to write working isolated tests and then refactor to a more general solution when you need it - that way, you know it was working, so you just have to work backwards to find out what went wrong
- Try to use automated IDE refactoring rather than move code around manually
- Use the IDE syntax highlighting to help spot any issues
My name is Andrey Karpov. I develop software for developers, and I'm fond of writing articles on code quality issues. In this connection, I have met the wonderful man Walter Bright who has created the D language. In the form of an interview, I will try to learn from him how the D language helps programmers get rid of errors we all make when writing code.
The document discusses how programmers often wrongly blame compilers for errors in their own code. It provides examples from open source code where errors like using the wrong size argument in memset() and memcpy() led programmers to incorrectly accuse the compiler. The author advises thoroughly investigating one's own code before blaming compilers, to avoid looking silly and to more quickly find and fix real errors.
Exception Handling Mechanism in .NET CLRKiran Munir
The document discusses the .NET CLR exception handling mechanism. It describes exceptions as events that disrupt normal program flow. The .NET Framework uses a three-pass approach for exception handling - the StackWalk pass, Unwind pass, and Leave pass work together to handle exceptions in the CLR. Exception objects contain information about errors and can be thrown and caught using try/catch blocks to disrupt normal program execution.
This document discusses exception handling in C#. It defines an exception as a problem that arises during program execution, such as dividing by zero. It describes how try, catch, and finally keywords allow programmers to transfer control when exceptions occur. The try block identifies code that could cause exceptions. Catch blocks handle specific exception types. Finally blocks contain code that always executes regardless of exceptions. Common exception classes derive from System.Exception. The example shows a method catching and handling a DivideByZeroException using try, catch, and finally.
Exceptions represent errors that occur during program execution. The try-catch block allows exceptions to be handled gracefully. A try block contains code that might throw exceptions, while catch blocks specify how to handle specific exception types if they occur. Checked exceptions must either be caught or specified in a method's throws clause, as they represent conditions outside the programmer's control. Unchecked exceptions like NullPointerException indicate programming errors and do not require catching or specifying.
This seminar will make you familiar with the exception handling concepts in .Net. Anyone who has been working on any of the .net languages or has just started can join in to learn more here.
The document contains 22 multiple choice questions about programming concepts like relational operators, loops, variables, data types, operators, debugging tools, and pseudocode. The red answers are likely to be correct. Hopefully most of them are right indeed.
Exception is an error event that can occur during program execution and disrupt normal flow. Java provides try, catch, throw, throws and finally keywords to handle exceptions. try is used to mark code that might throw exceptions, catch handles exceptions, throw throws exceptions, throws declares exceptions a method can throw, and finally always executes. There are two types of exceptions - checked exceptions which must be caught or declared thrown, and runtime exceptions which do not require handling. The Throwable class is at the top of the exception hierarchy, with Error and Exception subclasses.
The document discusses effective use of exception handling in Java. It defines exceptions as abnormal conditions that occur during method execution. There are several types of exceptions, including checked exceptions that must be caught or declared, and unchecked exceptions that do not require handling. The document provides guidance on when to use checked vs unchecked exceptions and discusses approaches for designing exception handling in applications.
Exceptions indicate problems during program execution and can be handled to allow programs to continue running or notify users. There are different levels where exceptions can occur including hardware, operating systems, languages, and within programs. Exception handling uses try, catch, and throw blocks. A try block encloses code that could throw an exception. If an exception occurs, control transfers to the matching catch block. The catch block handles the exception to resolve it. Exceptions not caught will terminate the program.
VBScript is a scripting language launched by Microsoft in 1996 that can be used for client-side and server-side scripting. It supports a single data type called Variant that behaves as a number or string depending on context. Variables in VBScript can be declared using keywords like Dim, Public, and Private and follow standard naming conventions. Arrays allow storing multiple values in a single variable and can have multiple dimensions. VBScript includes different types of procedures like Sub and Function to organize code, and various control structures like If/Else, Select Case, and loops for conditionally executing blocks of code.
La importancia de los consejos comunales y las cooperativas en la participación ciudadana, es decir como el pueblo interviene o participa en estos temas del día a día.
Este documento describe conceptos clave relacionados con la muerte y la medicina forense. Explica que la medicina forense se encarga de todo lo relacionado con la muerte y el cadáver, incluyendo la clasificación médico-legal de la muerte, los tipos de muerte, los fenómenos cadavéricos, y la importancia de la identificación del cadáver y la fijación de la escena del crimen. También describe conceptos como el tanatocronodiagnóstico y la entomología forense, que son útiles para determinar el tiempo
This document discusses exception handling in Java. It defines exceptions as errors that occur during program execution and disrupt normal flow. Exceptions are represented as objects that can be thrown and caught. There are two main types of exceptions - checked exceptions which must be handled, and unchecked exceptions which occur due to bugs and do not need to be handled. The try, catch, and finally keywords are used to handle exceptions. Custom exceptions can also be created by extending the Exception class.
This is the material that I prepared for gathering best practices in exception handling that we aim to follow. I used the content stated in the references section.
How to write an error handler.
Normally, it displays a message indicating the cause of the error and may also terminate script execution when a PHP script encounters an error.
Now, while this behavior is acceptable during the development phase, it cannot continue once a PHP application has been released to actual users.
In "live" situations, it is unprofessional to display cryptic error messages (which are usually incomprehensible to non-technical users).
It is more professional to intercept these errors and either resolve them (if resolution is possible), or notify the user with an easily-understood error message (if not).
This document discusses different types of errors in VB.net and methods for debugging them. It describes syntax errors, runtime errors, and logic errors. It then provides details on debugging techniques for each error type, such as using breakpoints, stepping through code, and monitoring variable values. Finally, it discusses error handling techniques like validating user input, activating error trapping with labels and exceptions, and testing to catch logic errors.
This document provides an overview of exception handling in Java. It discusses how to use try, catch, and throw blocks to handle exceptions and failures in code. The try block encloses code that might throw exceptions, catch blocks specify how to handle specific exceptions, and finally blocks contain cleanup code that always executes. The document outlines Java's exception hierarchy and differentiates between checked and unchecked exceptions. It provides examples of handling arithmetic and input mismatch exceptions.
Programming katas for Software Testers - CounterStringsAlan Richardson
What would be suitable Code Katas for people wanting to learn how to code to support their testing?
CounterStrings
- `*3*5*7*9*12*15*`
A CounterString is a string like this `*3*5*7*9*12*15*` where the `*` represent the position in the string of the number immediately proceeding it. This is a 15 character CounterString.
These are useful because if you paste them into a field, and are truncated then it is easy to see what they were truncated to, it is as James Bach describes it, self documenting test data.
https://www.eviltester.com/blog/eviltester/2019-02-27-programming-katas-for-testers/
The document discusses exception handling in programming languages. It begins by introducing exception handling and describing how exceptions are handled differently in languages with and without exception handling capabilities. It then covers exception handling in C++ and Java specifically. In C++, exceptions are bound to handlers through the type of a formal parameter, while in Java exceptions extend a Throwable class and are more easily bound based on class. The document also describes features like finally clauses and checked vs unchecked exceptions in Java.
FAQ - why does my code throw a null pointer exception - common reason #1 Rede...Alan Richardson
A common reason for Null Pointer Exceptions in Java is a variable redeclaration instead of instantiation. Learn what that means, how to avoid it, and how to spot it, in this presentation.
Read the full blog post: http://testerhq.com/post/blogs/javafortesters/2017-08-29-faq-null-pointer-exception/
Visit my Java Web Site: http://javafortesters.com
---
# FAQ - why does my code throw a null pointer exception - common reason #1 Redeclaration
- Using `@BeforeClass` or `@Before` can setup data for use in tests
- Any 'variables' we instantiate need to be 'fields' rather than variables
- We want to instantiate them in the setup method rather than redeclare them
---
# Example of the Problem
I know I will use an `Adder` in my test so I create it as a field:
~~~~~~~~
public class WhyCodeThrowsNullPointerExceptionTest {
Adder adder;
~~~~~~~~
I don't want to re-instantiate it each time so I make an `@BeforeClass` method to instantiate it:
~~~~~~~~
@BeforeClass
public static void setupAdder(){
Adder adder = new Adder();
}
~~~~~~~~
**Warning: Error in the above code**
---
# Semantic Error
I just made a Semantic coding error. This won't be caught by a compiler, but it will cause my `@Test` to fail with a Null Pointer Exception.
In the setup method I really wanted to assign a value to the field, instead I created an new variable with the same name.
# In General
- Try to write one test at a time so that if you have a problem it is easier to identify where the problem is
- Try to write working isolated tests and then refactor to a more general solution when you need it - that way, you know it was working, so you just have to work backwards to find out what went wrong
- Try to use automated IDE refactoring rather than move code around manually
- Use the IDE syntax highlighting to help spot any issues
My name is Andrey Karpov. I develop software for developers, and I'm fond of writing articles on code quality issues. In this connection, I have met the wonderful man Walter Bright who has created the D language. In the form of an interview, I will try to learn from him how the D language helps programmers get rid of errors we all make when writing code.
The document discusses how programmers often wrongly blame compilers for errors in their own code. It provides examples from open source code where errors like using the wrong size argument in memset() and memcpy() led programmers to incorrectly accuse the compiler. The author advises thoroughly investigating one's own code before blaming compilers, to avoid looking silly and to more quickly find and fix real errors.
Exception Handling Mechanism in .NET CLRKiran Munir
The document discusses the .NET CLR exception handling mechanism. It describes exceptions as events that disrupt normal program flow. The .NET Framework uses a three-pass approach for exception handling - the StackWalk pass, Unwind pass, and Leave pass work together to handle exceptions in the CLR. Exception objects contain information about errors and can be thrown and caught using try/catch blocks to disrupt normal program execution.
This document discusses exception handling in C#. It defines an exception as a problem that arises during program execution, such as dividing by zero. It describes how try, catch, and finally keywords allow programmers to transfer control when exceptions occur. The try block identifies code that could cause exceptions. Catch blocks handle specific exception types. Finally blocks contain code that always executes regardless of exceptions. Common exception classes derive from System.Exception. The example shows a method catching and handling a DivideByZeroException using try, catch, and finally.
Exceptions represent errors that occur during program execution. The try-catch block allows exceptions to be handled gracefully. A try block contains code that might throw exceptions, while catch blocks specify how to handle specific exception types if they occur. Checked exceptions must either be caught or specified in a method's throws clause, as they represent conditions outside the programmer's control. Unchecked exceptions like NullPointerException indicate programming errors and do not require catching or specifying.
This seminar will make you familiar with the exception handling concepts in .Net. Anyone who has been working on any of the .net languages or has just started can join in to learn more here.
The document contains 22 multiple choice questions about programming concepts like relational operators, loops, variables, data types, operators, debugging tools, and pseudocode. The red answers are likely to be correct. Hopefully most of them are right indeed.
Exception is an error event that can occur during program execution and disrupt normal flow. Java provides try, catch, throw, throws and finally keywords to handle exceptions. try is used to mark code that might throw exceptions, catch handles exceptions, throw throws exceptions, throws declares exceptions a method can throw, and finally always executes. There are two types of exceptions - checked exceptions which must be caught or declared thrown, and runtime exceptions which do not require handling. The Throwable class is at the top of the exception hierarchy, with Error and Exception subclasses.
The document discusses effective use of exception handling in Java. It defines exceptions as abnormal conditions that occur during method execution. There are several types of exceptions, including checked exceptions that must be caught or declared, and unchecked exceptions that do not require handling. The document provides guidance on when to use checked vs unchecked exceptions and discusses approaches for designing exception handling in applications.
Exceptions indicate problems during program execution and can be handled to allow programs to continue running or notify users. There are different levels where exceptions can occur including hardware, operating systems, languages, and within programs. Exception handling uses try, catch, and throw blocks. A try block encloses code that could throw an exception. If an exception occurs, control transfers to the matching catch block. The catch block handles the exception to resolve it. Exceptions not caught will terminate the program.
VBScript is a scripting language launched by Microsoft in 1996 that can be used for client-side and server-side scripting. It supports a single data type called Variant that behaves as a number or string depending on context. Variables in VBScript can be declared using keywords like Dim, Public, and Private and follow standard naming conventions. Arrays allow storing multiple values in a single variable and can have multiple dimensions. VBScript includes different types of procedures like Sub and Function to organize code, and various control structures like If/Else, Select Case, and loops for conditionally executing blocks of code.
La importancia de los consejos comunales y las cooperativas en la participación ciudadana, es decir como el pueblo interviene o participa en estos temas del día a día.
Este documento describe conceptos clave relacionados con la muerte y la medicina forense. Explica que la medicina forense se encarga de todo lo relacionado con la muerte y el cadáver, incluyendo la clasificación médico-legal de la muerte, los tipos de muerte, los fenómenos cadavéricos, y la importancia de la identificación del cadáver y la fijación de la escena del crimen. También describe conceptos como el tanatocronodiagnóstico y la entomología forense, que son útiles para determinar el tiempo
The anchor tag <a> is used to create links within HTML documents or to other documents. Anchors can link to other pages using the href attribute, specifying the URL. They can also link to internal sections of a page using the name attribute. Common examples include linking to another website, bookmarking a section on a page, or jumping to the top of a page. Properly formatted anchor tags require a closing tag and attributes like href or name as needed.
This tutorial has been prepared for the beginners to help them understand basic-to-advanced functionality of VBScript.
In this tutorial we have discussed mainly the widely used string functions in Vb script with example.
Este documento proporciona una introducción al lenguaje de programación VBScript. Explica los diferentes temas que cubrirá como operadores, estructuras de control como IF, CASE, FOR y WHILE, y manejo de objetos como FileSystemObject y wshShell. También incluye ejemplos de código VBScript para ilustrar cada concepto.
Introduction to Oracle RMAN, backup and recovery tool.guest5ac6fb
RMAN is Oracle's main backup and recovery tool that is built into Oracle Server without requiring additional licensing fees. It was introduced in Oracle 8 and has improved significantly since then, making it the most powerful tool for backup and recovery tasks. While traditional techniques can still be used instead of RMAN, using RMAN allows you to fully utilize Oracle Server's capabilities.
The document provides information on scripting languages and VBScript. It discusses the differences between compiled and scripting languages. Compiled languages are faster but require recompiling to change. Scripting languages are interpreted, slower but more portable and easier to change. VBScript is introduced as a scripting language created by Microsoft in response to JavaScript. It is designed to be easier to learn than Perl due to its similarities to Visual Basic. The document then covers VBScript basics like data types, operators, control structures and looping.
VBScript is a scripting language developed by Microsoft for web pages and Windows applications. It began in 1996 as part of Windows Script Technologies and was included in Internet Explorer. While no longer under development, VBScript can still be used for small tasks by executing scripts within a host application like Windows Script Host, Internet Explorer, or IIS. VBScript supports basic data types, variables, operators, statements like If/Then and loops, and Sub/Function procedures.
HTML allows you to add images and links to web pages. Images are added using the <img> tag which requires a src attribute to specify the image file path. Links are added using the <a> tag which requires an href attribute to specify the URL and can contain text or images to display the link.
Introduction to Unified Functional Testing 12 (UFT)Archana Krushnan
This document provides an introduction to Unified Functional Testing (UFT), formerly known as QuickTest Professional (QTP). It discusses what UFT is, some of its key features and advantages over other testing tools. It describes the testing process in UFT including designing test scripts. It provides details on the components of a UFT test script and highlights some limitations of UFT.
VBScript is a scripting language launched by Microsoft in 1996 that can be used for client-side and server-side scripting. It supports only one data type called "Variant" that behaves as a number or string depending on context. Variables in VBScript can be declared using keywords like Dim, Public, and Private and follow standard naming conventions. Arrays allow storing multiple values in a single variable. Procedures like Sub and Function can be used to organize code and may accept arguments. Conditional statements like If/Else and Select Case allow choosing between code blocks. Loops like For, For Each, Do While, and Do Until are used to repeat steps. Built-in functions provide useful operations.
VBScript is a lightweight scripting language that can be used for both client-side and server-side programming. It is a light version of Visual Basic. VBScript supports variables, arrays, procedures, functions, conditional statements like If-Else and Select Case, and loops like For Each, Do While, and Do Until loops. Built-in functions provide date, time, and mathematical capabilities.
The document provides information about CITRIS and computational science and engineering (CSE) at Berkeley. It summarizes key events and initiatives in CSE including the establishment of a graduate program in CSE, the impact of multicore computing, growth of cloud computing, and XSEDE. It also outlines the Designated Emphasis in CSE, participating departments and courses, and resources available to students.
Ramanathan A has over 21 years of experience in sales, marketing, collections, and operations for non-banking finance companies. He is currently working as an Area Manager for HDB Financial Services in Trichy, where he manages a portfolio generating an average of 2.5 crores monthly in commercial vehicle business. Previously he held regional management positions at Hinduja Leyland Finance and Shriram Automall India, where he improved processes for stock liquidation and online auction sales respectively. Ramanathan holds an MBA in Finance and Marketing and is looking for a new challenging position to apply his expertise.
The document discusses the target audience for a thriller film. The primary target audience is 15-30 year olds, as research shows this age group attends cinemas for thrillers the most. As the film involves a school shooting with high school aged kids (10-17), those audiences will find it most relatable. The secondary target is 30-40 year olds, as they are still interested in thrillers, though may not relate as well to a young psychopath. The film is not aimed at those over 40 who would have difficulty relating.
This document provides details on Kassim Denim's Spring/Summer 2015 men's and women's denim fabric collections. It lists 20 fabric styles for men and 12 styles for women, with each entry detailing the composition, weight, width, and price per meter. The fabrics utilize various techniques like warp dyeing, overdyeing, reactive dyeing, and coatings to create different visual effects while focusing on low-impact and sustainable production methods.
Islam Mohamed Hussein Mohamed is an Egyptian national seeking a position as a document controller. He has over 6 years of experience in oil and gas and civil engineering projects. His experience includes compiling documents, data entry, document preparation, and interacting with various departments to collect information. He is proficient in Microsoft Office, AutoCAD, and has experience developing software for project handovers. He is willing to relocate internationally and has experience working under pressure to meet deadlines.
The document provides a summary of T.R. Venkatramani's professional experience and qualifications. It outlines his current role as Creative Head at Gtv Communications in Chennai, India, with over 15 years of experience managing various aspects of programming, operations, and creative leadership in the media sector. It also lists his educational background and past roles, including positions at Radaan Mediaworks India Ltd and Polimer TV, as well as credits for directing films and television shows.
The document discusses defensive programming and exception handling in object oriented programming. It defines defensive programming as a server object validating parameter values from client requests to prevent incorrect usage. Exception handling involves catching and responding to errors during program execution. The key points covered include checking parameter values, notifying clients of errors, exception hierarchies, and throwing and handling exceptions.
This document contains lecture notes on error handling in Visual Basic .NET. It discusses the different types of errors that can occur, including syntax errors, logical errors, and run-time errors. It introduces exception handling in VB.NET using Try/Catch blocks to trap errors. Specific exception classes are described that can be used to trap different error types. Finally, it discusses using the Throw statement to raise custom exceptions. The notes provide an overview of using exceptions to prevent programs from crashing and make them more robust.
This document summarizes a lecture on error handling and debugging in C# visual programming. It discusses using try, catch, and finally blocks to handle errors through exceptions. It also covers debugging techniques like using breakpoints to step through code. Common .NET exception classes are listed, and reasons for debugging like ensuring reliable software are provided.
The document discusses exceptions and exception handling in programs. It defines an exception as a problem that arises during program execution, such as attempting to divide by zero. Exception handling allows programs to respond to errors in a more organized way using try and catch blocks. It describes four approaches programs can take to respond to errors: crashing, informing the user and exiting, informing the user to attempt recovery, or taking corrective action without disturbing the user. The key aspects of exception handling are try blocks to detect where exceptions may occur, catch blocks to determine the type of exception and how to handle it, and throw to raise an exception from anywhere in the code.
The document discusses debugging processes and techniques. It defines debugging as the process of finding, correcting and removing bugs from programs. There are three main types of errors: syntactic, semantic, and logic errors. The debugging process involves reproducing the problem reliably, finding the source of the error, fixing just that one error, testing the fix, and optionally looking for more errors. Key debugging techniques include inserting print statements, using a debugger, explaining the code to someone else, and fixing only one error at a time. The overall goal of debugging is to methodically match symptoms to causes to locate and correct errors in code.
The document discusses exceptions in .NET programs. It defines what exceptions are, how they are represented by classes in the .NET Framework that derive from the SystemException class, and how exceptions can be handled using structured exception handling with try, catch, and finally blocks. It also covers raising exceptions intentionally and filtering exceptions in catch blocks.
C Programming Language is the most popular computer language and most used programming language till now. It is very simple and elegant language. This lecture series will give you basic concepts of structured programming language with C.
JAVA EXCEPTION HANDLING
N.V.Raja Sekhar Reddy
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This document discusses exception handling in Java. It defines what exceptions are, why they occur, and what exception handling is. It describes the advantages of exception handling and differences between exceptions and errors. It covers the exception class hierarchy and exception handling keywords like try, catch, finally, throw, and throws. It provides examples of common exception types and an example Java code demonstrating exception handling.
Exceptions are a powerful mechanism for centralized processing of errors and exceptional situations. This mechanism replaces the procedure-oriented method of error handling in which each function returns a code indicating an error or a successful execution.
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Testing involves finding errors in a program. The goal is to assume a program contains errors and test to find as many as possible. Different testing techniques include white box testing by developers and black box testing by testers. Testing levels include unit, integration, system, and user acceptance testing. Developers and testers have different goals - developers want code to work while testers try to make code fail. Good development practices from a tester's view include doing own acceptance tests, fixing bugs, writing helpful error messages, and not artificially adding bugs. Good relationships between project managers, developers and testers help ensure quality.
Testing involves finding errors in a program. The goal is to assume a program contains errors and test to find as many as possible. Different testing techniques include white box testing by developers and black box testing by testers. Testing levels include unit, integration, system, and user acceptance testing. Developers and testers have different goals - developers want code to work while testers try to make code fail. Good development practices from a tester's view include doing own acceptance tests, fixing bugs, writing helpful error messages, and not artificially adding bugs. Good relationships between project managers, developers and testers help ensure quality.
The document discusses program security and secure programming. It covers various types of programming errors that can lead to security issues like buffer overflows and incomplete access controls. It also discusses malicious code like viruses, worms, and Trojan horses. The document outlines controls needed against vulnerabilities in programs and flaws during execution. It defines different types of programming flaws like intentional, inadvertent, validation errors, and boundary violations that can be exploited. Specific issues like buffer overflows, incomplete mediation, and time-of-check to time-of-use errors are explained in detail along with their security implications. Finally, it covers different types of malicious code and how viruses specifically spread and infect systems.
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HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
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- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
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During the hour, we’ll take you through:
Guest Speaker Segment with Hannah Barrington: Dive into the world of dynamic real estate marketing with Hannah, the Marketing Manager at Workspace Group. Hear firsthand how their team generates engaging descriptions for thousands of office units by integrating diverse data sources—from PDF floorplans to web pages—using FME transformers, like OpenAIVisionConnector and AnthropicVisionConnector. This use case will show you how GenAI can streamline content creation for marketing across the board.
Ollama Use Case: Learn how Scenario Specialist Dmitri Bagh has utilized Ollama within FME to input data, create custom models, and enhance security protocols. This segment will include demos to illustrate the full capabilities of FME in AI-driven processes.
Custom AI Models: Discover how to leverage FME to build personalized AI models using your data. Whether it’s populating a model with local data for added security or integrating public AI tools, find out how FME facilitates a versatile and secure approach to AI.
We’ll wrap up with a live Q&A session where you can engage with our experts on your specific use cases, and learn more about optimizing your data workflows with AI.
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HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
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Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
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What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
2. 2
What We’ve learned last session?
What is OOP and the OOP model.
What is an object, how to create an object, use
methods, properties and attribures
How to set object to variables, and how to free the
variables.
What is a collection and a container object.
What is COM objects, how do they defined
The FileSystem object, how to create,delete,read,copy
files and directories, how to get system information.
Last session was for begginers
3. 3
Subjects for session 12
Error Handling
On Error statements
On Error Goto 0
On Error Resume Next
Err Object
Methods.
Properties.
vbObjectError constant
4. 4
Error Handling
Expect the Unexpected!
There are two ways of producing error-free software.
But only the third will work ...
Unknown Author
What we anticipate seldom occurs; what we least
expected generally happens.
Benjamin Disraeli
5. 5
Error Handling
Why?
There are bugs than can eliminate an entire project.
There are also bugs that can kill people.
Reliability is a major characteristic of high-quality
software.
Software should behave well in nearly every situation.
During the development process we try to avoid, detect
and remove as many errors as possible.
We cannot assume that the delivered software is free
of errors. Therefore, we have to think about
mechanisms to protect the productive system from
unacceptable behaviour while erroneous situations
occurs.
6. 6
Error Handling
Goals
We want to be prepared for the program changing
into a bad state.
In most cases there will be no return from the bad
state to a good state and the program has to be
terminated in a controlled way.
Of course, whenever possible the program tries to
get out of trouble by itself, but normally it would be
very difficult to recover from a serious error
situation.
During specification the boundary between the
normal, abnormal and erroneous behaviour is drawn
and this boundary remains visible down to the code.
7. 7
Error Handling
Goals
We want to minimize the set of disastrous
states by foreseeing these situations and
thus converting them to expected
situations.
An error handling concept defines which
errors must be distinguished and how the
system reacts to these errors.
Such a concept can be very simple or very
complicated.
9. 9
Error Handling
Terminology - Fault
A fault is the origin of any
misbehaviour.
One can distinguish between design
faults (software bugs), hardware
faults, lower level service faults,
and specification faults.
10. 10
Error Handling
Terminology - Error
A user error is a mistake made by a user when
operating a software system.
The system is able to react to these mistakes,
because it is designed to expect such situations
and it is a part of the required functionality.
The handling of those situations, which of course
can be abnormal, should be treated in the user
interface component of the system.
In contrast to an error, a user error (hopefully)
can not result in a system crash, but like a
system error, a user error normally can result in
an exception raised by a system component.
11. 11
Error Handling
Terminology - Failure
A failure is a deviation of the
delivered service from compliance
with the specification.
Whereas an error characterizes a
particular state of a system, a
failure is a particular event namely
the transition from correct service
delivery to incorrect service.
12. 12
Error Handling
Terminology - Detector
Before software can react to any error it has to
detect one first.
If we look at the error handling as a separate
software system, errors and failures of an
application are the phenomena the error handling
system observes.
Thus a detector is the interface between the error
and failures happening outside and their internal
handling.
The number, place and kind of detectors have
great impact on the quality of an error handling
system.
13. 13
Error Handling
Terminology - Exception
Generally, any occurrence of an abnormal condition that
causes an interruption in normal control flow is called an
exception.
It is said that an exception is raised (thrown) when such a
condition is signaled by a software unit.
In response to an exception, the control is immediately given
to a designated handler for the exception, which reacts to
that situation (exception handler).
The handler can try to recover from that exception in order to
continue at a prede-fined location or it cleans up the
environment and further escalates the exception.
exceptions are not only a mechanism which can be used to
handle errors and program failures.
14. 14
Error Handling
Summary
No software system can be assumed to behave totally
correct.
Even careful testing and the use of formal methods
does not guarantee error-free software, hence we
cannot rely on a “perfect world” assumption.
Because we cannot prevent errors we have to live with
them.
The software must be able to detect errors and to
defeat them with appropriate recovery techniques and
mechanisms in order to restore normal operation.
15. 15
On Error Statements
Enables or disables error-handling.
If you don't use an On Error Resume Next
statement anywhere in your code, any run-time
error that occurs can cause an error message to
be displayed and code execution stopped.
This sample of error message generated when
trying to open a file that not exists.
16. 16
On Error Statements
However, the host running the code determines
the exact behavior.
The host can sometimes opt to handle such errors
differently.
In some cases, the script debugger may be
invoked at the point of the error.
n still other cases, there may be no apparent
indication that any error occurred because the
host does not to notify the user.
Again, this is purely a function of how the host
handles any errors that occur.
17. 17
On Error Statements
Within any particular procedure, an error is not
necessarily fatal as long as error-handling is
enabled somewhere along the call stack.
If local error-handling is not enabled in a
procedure and an error occurs, control is passed
back through the call stack until a procedure with
error-handling enabled is found and the error is
handled at that point.
If no procedure in the call stack is found to have
error-handling enabled, an error message is
displayed at that point and execution stops or the
host handles the error as appropriate.
18. 18
On Error Resume Next
uses execution to continue with the statement immediately
following the statement that caused the run-time error, or
with the statement immediately following the most recent call
out of the procedure containing the On Error Resume Next
statement.
his allows execution to continue despite a run-time error.
You can then build the error-handling routine inline within the
procedure.
An On Error Resume Next statement becomes inactive
when another procedure is called, so you should execute an
On Error Resume Next statement in each called routine if
you want inline error handling within that routine.
19. 19
On Error Resume Next
hen a procedure is exited, the error-
handling capability reverts to whatever
error-handling was in place before
entering the exited procedure.
Use On Error GoTo 0 to disable error
handling if you have previously enabled it
using On Error Resume Next.
20. 20
On Error Resume Next
hen a procedure is exited, the error-
handling capability reverts to whatever
error-handling was in place before
entering the exited procedure.
Use On Error GoTo 0 to disable error
handling if you have previously enabled it
using On Error Resume Next.
21. 21
On Error Resume Next
Pros and Cons
Episode of the Simpsons (Notes)
Problem: On Error Resume Next doesn’t actually fix the
problem, it merely removes it from view.
On Error Resume Next is no miracle cure for scripting.
When you start a script, assuming there are no syntax
errors that would cause the script to crash before it
ever gets going, WSH tries to run the first line of code.
If the line runs successfully, WSH then tries to run the
second line of code.
This process continues until each line of code has been
executed.
At that point, the script automatically terminates.
22. 22
On Error Resume Next
Pros and Cons
But what if WSH encounters a line of code that it can’t
run successfully? Without On Error Resume Next, the
script would come to a crashing halt, the script process
would end, and an error message would be displayed.
If you’ve included On Error Resume Next, however, the
script typically won’t blow up; instead, WSH will simply
skip the line it can’t run and try running the next line.
100-line script sample.
There’s definitely value in having a script that can
recover from errors, especially when that script is being
used by other people.
23. 23
On Error Resume Next
Why? When? How?
We have here a simple code :
Notice the mistake we made in line 3: instead of
typing b = 2, we typed b 2:
On Error Resume Next
Dim a
a = 1
b 2
MsgBox a+b
The answer you will get is 1
we’ve managed to turn our fancy new computer
into a machine that can’t even add 2 and 1!
24. 24
On Error Resume Next
Why? When? How?
B 2 is not a valid statement, and when WSH
encounters this line an error occurs.
However, On Error Resume Next suppresses this
error.
WSH then attempts to run the next line of code,
something which, in this case, leads to problems.
Because of that, B is not assigned the value 2.
And because no value has been assigned to B, it
automatically assumes the value of 0.
25. 25
On Error Resume Next
Why? When? How?
Because you know that this answer is wrong (I
hope) and because this script is so short, you
probably know that the script needs debugging
In this case, then, debugging the script is easy.
But suppose this script was several hundred lines
long, and suppose this was a much more
complicated mathematical equation.
In that case, you might not know that the answer
was wrong; even if you did, you might have
trouble tracking down the problem.
26. 26
On Error Resume Next
Why? When? How?
Running now tge script again will cause the follow
message to be displayed
This time there’s no question about whether the script
worked or not, and we don’t have to puzzle over whether
2 + 1 actually does equal 1. We know for sure that we
have problems.
27. 27
On Error Resume Next
Why? When? How?
Often in larger scripts we move to step 2
There are two things we need to do here.
First, read the error message.
Second, pay attention to the line number reported
in the error message.
Step 3 figure out the problem based on the error
message, one thing you can do is look up the
error code (800A000D) at the Microsoft Support
site or VBScript documenatation, don’t forget that
the value is hexadecimal so convert only the last
4 digits (000D) to a decimal number (13)
For this Error in the VBScript documentation you
will get “Type Mismatch”
28. 28
On Error Resume Next
Why? When? How?
For larger scripts is recommended
to implement the following routines
Break your script into sections and test
each section separately. Make sure
each individual section is working
before you re-test the script as a
whole.
Implement a Trace Routine using
msgboxes, acommand-line tool or
displaying messages to the screen.
29. 29
On Error Resume Next
Why? When? How?
Step 1: Get Rid of On Error Resume Next
whenever you are working on a script and
whenever you suspect something has
gone wrong, your first step should always
be to remove or remark On Error Resume
Next.
A better moral might be this: On Error
Resume Next should typically be the last
thing you add to a script, not the first
thing.
30. 30
Err Object
Contains information about run-time errors.
The Err object is an intrinsic object with global
scope — there is no need to create an instance of
it in your code.
The properties of the Err object are set by the
generator of an error — Visual Basic, an
Automation object, or the VBScript programmer.
The default property of the Err object is Number.
Err.Number contains an integer and can be used
by an Automation object to return an SCODE.
31. 31
Err Object
When a run-time error occurs, the properties of
the Err object are filled with information that
uniquely identifies the error and information that
can be used to handle it.
To generate a run-time error in your code, use
the Raise method.
The Err object's properties are reset to zero or
zero-length strings ("") after an On Error
Resume Next statement.
The Clear method can be used to explicitly reset
Err.
32. 32
Err Object Properties and Methods
Number Property
object.Number [= errornumber]
Returns or sets a numeric value specifying an
error.
Number is the Err object's default property.
When returning a user-defined error from an
Automation object, set Err.Number by adding
the number you selected as an error code to the
constant vbObjectError.
33. 33
Err Object Properties and Methods
Description Property
object.Description [= stringexpression]
Returns or sets a descriptive string associated with an error.
The Description property consists of a short description of
the error.
Use this property to alert the user to an error that you can't
or don't want to handle.
When generating a user-defined error, assign a short
description of your error to this property.
If Description isn't filled in, and the value of Number
corresponds to a VBScript run-time error, the descriptive
string associated with the error is returned.
34. 34
Err Object Properties and Methods
Source Property
object.Source [= stringexpression]
Returns or sets the name of the object or application that
originally generated the error.
The Source property specifies a string expression that is
usually the class name or programmatic ID of the object that
caused the error.
Use Source to provide your users with information when
your code is unable to handle an error generated in an
accessed object.
For example, if you access Microsoft Excel and it generates a
Division by zero error, Microsoft Excel sets Err.Number to its
error code for that error and sets Source to
Excel.Application.
35. 35
Err Object Properties and Methods
Source Property
Source always contains the name of the object
that originally generated the error.
your code can try to handle the error according to
the error documentation of the object you
accessed.
If your error handler fails, you can use the Err
object information to describe the error to your
user, using Source and the other Err to inform
the user which object originally caused the error,
its description of the error, and so forth.
36. 36
Err Object Properties and Methods
Help File Property
object.HelpFile [= contextID]
Sets or returns a fully qualified path to a Help File.
The contextID is a fully qualified path to the Help file.
If a Help file is specified in HelpFile, it is automatically
called when the user clicks the Help button (or presses
the F1 key) in the error message dialog box.
If the HelpContext property contains a valid context
ID for the specified file, that topic is automatically
displayed.
If no HelpFile is specified, the VBScript Help file is
displayed.
37. 37
Err Object Properties and Methods
Help Context Property
object.HelpContext [= contextID]
Sets or returns a context ID for a topic in a Help File.
The contextID is a valid identifier for a Help topic within the Help
file.
If a Help file is specified in HelpFile, the HelpContext property
is used to automatically display the Help topic identified.
If both HelpFile and HelpContext are empty, the value of the
Number property is checked.
If it corresponds to a VBScript run-time error value, then the
VBScript Help context ID for the error is used.
If the Number property doesn't correspond to a VBScript error,
the contents screen for the VBScript Help file is displayed.
38. 38
Err Object Properties and Methods
Clear Method
object.Clear
Clears all property settings of the Err object.
Use Clear to explicitly clear the Err object after an
error has been handled.
This is necessary, for example, when you use deferred
error handling with On Error Resume Next.
VBScript calls the Clear method automatically
whenever any of the following statements is executed:
On Error Resume Next
Exit Sub
Exit Function
39. 39
Err Object Properties and Methods
Raise Method
object.Raise(number, source, description, helpfile, helpcontext)
Generates a run-time error.
All the arguments are optional except number.
If you use Raise, however, without specifying some
arguments, and the property settings of the Err object
contain values that have not been cleared, those values
become the values for your error.
When setting the number property to your own error code in
an Automation object, you add your error code number to the
constant vbObjectError.
For example, to generate the error number 1050, assign
vbObjectError + 1050 to the number property.
40. 40
What’s Next?
Regulars Expressions.
Methods and properties.
How to use the object and the
object collections.
How to create complex patterns.
Editor's Notes
Example: The fault which causes the Ariane 5 failure was a specification fault. For Ariane 5 software from Ariane 4 was reused, but this software does not match the requirements for Ariane 5. The validation of the specification against the requirements and the testing of the final software were not sufficient to detect the fault.
Example: The fault which causes the Ariane 5 failure was a specification fault. For Ariane 5 software from Ariane 4 was reused, but this software does not match the requirements for Ariane 5. The validation of the specification against the requirements and the testing of the final software were not sufficient to detect the fault.
Example: The fault which causes the Ariane 5 failure was a specification fault. For Ariane 5 software from Ariane 4 was reused, but this software does not match the requirements for Ariane 5. The validation of the specification against the requirements and the testing of the final software were not sufficient to detect the fault.
Example: The fault which causes the Ariane 5 failure was a specification fault. For Ariane 5 software from Ariane 4 was reused, but this software does not match the requirements for Ariane 5. The validation of the specification against the requirements and the testing of the final software were not sufficient to detect the fault.
Example: The fault which causes the Ariane 5 failure was a specification fault. For Ariane 5 software from Ariane 4 was reused, but this software does not match the requirements for Ariane 5. The validation of the specification against the requirements and the testing of the final software were not sufficient to detect the fault.
There’s an episode of the Simpsons in which the family is driving along when an engine warning light begins flashing on the dashboard. “I’ll take care of that,” says Homer, who promptly grabs a piece of duct tape and tapes over the light so no one can see it. Problem solved
Suppose you had a 100-line script and each line had been coded incorrectly. Theoretically, you could start that script and WSH would dutifully try to run each line. Each time it failed, WSH would simply skip to the next line. After all 100 lines had been tried, the script would gracefully end, just as though everything had worked perfectly. In truth, however, none of your 100 lines would have been executed.
SCODE - A DWORD value that is used to return detailed information to the caller of an interface method or function. See also HRESULT.
SCODE - A DWORD value that is used to return detailed information to the caller of an interface method or function. See also HRESULT.