The document contains a list of questions and answers related to .NET interview questions. It covers topics such as object-oriented programming concepts in C# like classes, inheritance, polymorphism, exceptions, delegates, generics, collections and more. For each question there is a detailed answer explaining the concept. It serves as a guide for developers to prepare for .NET technical interviews.
Top 20 c# interview Question and answersw3asp dotnet
This presentation contains interview question and answers . www.w3asp.net provide you the information, knowledge, job, practices and tranings regarding asp.net.
Top 20 Asp.net interview Question and answersw3asp dotnet
This document contains 20 interview questions and answers related to .NET development. It covers topics like namespaces, debugging with and without a debugger, breakpoints, base classes for web forms, digital signatures, intermediate language, forms authentication sign out, disabling sessions, email sending classes, turning off cookies for one page, how .NET supports multiple languages, accessing HTTP information from classes, securing websites, garbage collection, state management, controls, the Global.asax file, differences between ExecuteQuery and ExecuteNonQuery, types of errors, and the root namespace.
Get More on http://www.ManzoorTheTrainer.com
This eBook contains 109 important interview questions along with answers that any web developer looking for a job on MS.Net platform needs to know. This eBook starts with two articles one of which talks about why most of the engineers are jobless and the other say the solution for it. As a technical part I have covered the following MS.Net technologies ASP.Net, C#.Net & ADO.Net and MS SQL Server.
Second edition is also on the way with focus on at least one real time example on each question.
Key features: Point to point | Simple language
The document contains an interview for an Accenture Dotnet position. It includes 22 questions related to various .NET technologies and concepts like OOPs concepts, abstract classes vs interfaces, static classes, encapsulation, page lifecycle, view state, garbage collection, CTS, stored procedures vs functions and more. The candidate provides answers to most questions demonstrating their knowledge of .NET and related technologies.
This document contains questions and answers related to .NET interview questions asked by Vineet Kumar Saini. It includes questions on SQL queries, ASP.NET controls and properties, OOPs concepts, threading, Ajax and more. The questions range from basic to advanced levels covering key areas of .NET such as C#, VB.NET, ASP.NET and ADO.NET.
This document provides best practices for coding. It discusses the importance of coding practices in reducing rework time and saving money. It covers four key areas: program design, naming conventions, documentation, and formatting. Program design discusses architectures like MVC and data storage. Naming conventions provide guidelines for naming classes, methods, variables and packages using conventions like camel casing. Documentation comments are important for maintaining programs and explaining code to other developers. Formatting addresses indentation, whitespace and brace formatting.
The document contains interview questions and answers about various C# concepts. Some of the key points covered include:
- C# supports single inheritance but not multiple inheritance, instead interfaces should be used.
- Abstract classes cannot be instantiated and must be inherited from, while interfaces contain only abstract method signatures that must be implemented.
- The System.String class is immutable while System.StringBuilder is mutable and more efficient for string manipulation.
- Exceptions should generally not be thrown within application code, and instead the proper error handling code should be written.
- Debugging tools that come with the .NET SDK include CorDBG and DbgCLR, while the Visual Studio debugger uses DbgCLR.
-
The document discusses keywords, identifiers, literals, punctuators, and data types in the C# programming language. It defines each concept and provides examples. Keywords are reserved words that implement language features. Identifiers name variables and cannot contain two underscores. Literals assign values to variables and include numbers, characters, strings, and escape sequences. Punctuators separate operations involving operands. Data types specify the size and type of values stored in variables, including primitive types like integers and floating-point, as well as reference types.
Top 20 c# interview Question and answersw3asp dotnet
This presentation contains interview question and answers . www.w3asp.net provide you the information, knowledge, job, practices and tranings regarding asp.net.
Top 20 Asp.net interview Question and answersw3asp dotnet
This document contains 20 interview questions and answers related to .NET development. It covers topics like namespaces, debugging with and without a debugger, breakpoints, base classes for web forms, digital signatures, intermediate language, forms authentication sign out, disabling sessions, email sending classes, turning off cookies for one page, how .NET supports multiple languages, accessing HTTP information from classes, securing websites, garbage collection, state management, controls, the Global.asax file, differences between ExecuteQuery and ExecuteNonQuery, types of errors, and the root namespace.
Get More on http://www.ManzoorTheTrainer.com
This eBook contains 109 important interview questions along with answers that any web developer looking for a job on MS.Net platform needs to know. This eBook starts with two articles one of which talks about why most of the engineers are jobless and the other say the solution for it. As a technical part I have covered the following MS.Net technologies ASP.Net, C#.Net & ADO.Net and MS SQL Server.
Second edition is also on the way with focus on at least one real time example on each question.
Key features: Point to point | Simple language
The document contains an interview for an Accenture Dotnet position. It includes 22 questions related to various .NET technologies and concepts like OOPs concepts, abstract classes vs interfaces, static classes, encapsulation, page lifecycle, view state, garbage collection, CTS, stored procedures vs functions and more. The candidate provides answers to most questions demonstrating their knowledge of .NET and related technologies.
This document contains questions and answers related to .NET interview questions asked by Vineet Kumar Saini. It includes questions on SQL queries, ASP.NET controls and properties, OOPs concepts, threading, Ajax and more. The questions range from basic to advanced levels covering key areas of .NET such as C#, VB.NET, ASP.NET and ADO.NET.
This document provides best practices for coding. It discusses the importance of coding practices in reducing rework time and saving money. It covers four key areas: program design, naming conventions, documentation, and formatting. Program design discusses architectures like MVC and data storage. Naming conventions provide guidelines for naming classes, methods, variables and packages using conventions like camel casing. Documentation comments are important for maintaining programs and explaining code to other developers. Formatting addresses indentation, whitespace and brace formatting.
The document contains interview questions and answers about various C# concepts. Some of the key points covered include:
- C# supports single inheritance but not multiple inheritance, instead interfaces should be used.
- Abstract classes cannot be instantiated and must be inherited from, while interfaces contain only abstract method signatures that must be implemented.
- The System.String class is immutable while System.StringBuilder is mutable and more efficient for string manipulation.
- Exceptions should generally not be thrown within application code, and instead the proper error handling code should be written.
- Debugging tools that come with the .NET SDK include CorDBG and DbgCLR, while the Visual Studio debugger uses DbgCLR.
-
The document discusses keywords, identifiers, literals, punctuators, and data types in the C# programming language. It defines each concept and provides examples. Keywords are reserved words that implement language features. Identifiers name variables and cannot contain two underscores. Literals assign values to variables and include numbers, characters, strings, and escape sequences. Punctuators separate operations involving operands. Data types specify the size and type of values stored in variables, including primitive types like integers and floating-point, as well as reference types.
Top Angular Interview Questions and answers would help freshers and experienced candidates clear any Angular interview .Do let us know the Angular questions you faced in the interview that are covered ...
Java vs. C#
The document compares Java and C# programming languages. It discusses some key differences:
1. Syntax differences such as main method signatures, print statements, and array declarations are slightly different between the two languages.
2. Some concepts are modified in C# from Java, such as polymorphism requiring the virtual keyword, operator overloading restrictions, and switch statements allowing string cases.
3. C# introduces new concepts not in Java like enumerations, foreach loops, properties to encapsulate fields, pointers in unsafe contexts, and passing arguments by reference.
ASP.NET MVC Interview Questions and Answers by Shailendra ChauhanShailendra Chauhan
This book covers useful Interview Questions and Answers on ASP.NET MVC. This book is appropriate for novice as well as for senior level professionals who wants to strengthen their skills before appearing for an interview on ASP.NET MVC. This book is equally helpful to sharpen their programming skills and understanding ASP.NET MVC in a short time.
Basic java important interview questions and answers to secure a jobGaruda Trainings
P2Cinfotech is one of the leading, Online IT Training facilities and Job Consultant, spread all over the world. We have successfully conducted online classes on various Software Technologies that are currently in Demand. To name a few, we provide quality online training for QA, QTP, Manual Testing, HP LoadRunner, BA, Java Technologies, SEO, Web Technologies, .NET, Oracle DBA etc.
The document discusses key concepts of classes and objects in C# including defining classes, adding variables and methods, member access modifiers, creating objects, constructors, static members, private constructors, and indexers. It defines classes as user defined data types that can encapsulate data as fields and functions as methods. Objects are instances of classes that allow data and methods to be accessed. Constructors initialize objects, while static members are associated with the class rather than individual objects.
The document outlines coding conventions and best practices for C# programming, including recommendations for naming conventions, indentation, spacing, commenting, exception handling, and other programming practices. It was compiled from various sources including Microsoft guidelines to help improve code readability and maintainability. Adhering to consistent coding standards can reduce software maintenance costs by making code easier for others to understand and maintain.
The .NET Framework class library provides access to system functionality through classes, interfaces, and value types, forming the foundation for .NET applications. It contains core classes for common data types, events, exceptions, and more. The library also enables database access via ADO.NET, file input/output, and defines generic data structures known as collections in the System.Collections namespace.
Nested classes allow one class to be defined within another, enabling inner classes to access members of the outer class. There are several types of nested classes: inner classes that can be member, anonymous, or local; and static nested classes. Member inner classes can access outer class members and be invoked from within or outside the outer class. Anonymous inner classes have no name and are created from an abstract class or interface. Local inner classes exist only within a method. Static nested classes can access static members of the outer class but not instance members.
The document discusses various coding best practices and conventions for writing good quality code, including naming conventions, formatting guidelines, and general programming practices. Some key points covered include using descriptive names, consistent indentation and spacing, single responsibility per method, error handling, and separating concerns between layers.
The document provides answers to various manual testing questions and examples. It discusses key concepts like priority and severity, examples of high severity low priority defects and vice versa. It also covers test case review criteria, contents of requirements documents, differences between web and client-server testing, test plan contents, defect lifecycle, regression testing approach, and how to report defects in an excel sheet.
This document discusses exception handling in Java. It defines exceptions as abnormal conditions that disrupt normal program flow. Exception handling allows programs to gracefully handle runtime errors. The key aspects covered include the exception hierarchy, try-catch-finally syntax, checked and unchecked exceptions, and creating user-defined exceptions.
The document discusses exceptions handling in .NET. It defines exceptions as objects that deliver a powerful mechanism for centralized handling of errors and unusual events. It describes how exceptions can be handled using try-catch blocks, and how finally blocks ensure code execution regardless of exceptions. It also covers the Exception class hierarchy, throwing exceptions with the throw keyword, and best practices like ordering catch blocks and avoiding exceptions for normal flow control.
This document provides an introduction to the Java programming language. It discusses Java's evolution and history from 1991 to present. It also covers Java fundamentals including data types, operators, decision making and looping constructs, classes and objects, arrays and strings. The document is intended as an overview of the major topics and features in Java.
This document provides an overview of advanced TypeScript concepts and best practices. It discusses the TypeScript toolchain and environment, ES2015+ features like let, modules, and unit testing. It covers the TypeScript type system including type inference, annotations, and strict checking. Other topics include decorators, structural typing, destructuring, and the differences between TypeScript and JavaScript.
This document discusses delegates and events in C#. It explains that a delegate is an object that can refer to a method. There are four steps to using delegates: declaration, defining delegate methods, instantiation, and invocation. Delegates can be singlecast or multicast. Events are declared using an event keyword and a delegate type, and allow an object to notify other objects when an event occurs. Multicast delegates can invoke multiple methods by adding delegate instances together using + operator and removing them using - operator.
This document introduces C# and provides an overview of key concepts like .NET, the Common Language Runtime (CLR), the Framework Class Library (FCL), data types, namespaces, variables, statements, expressions, operators, and references. It also discusses how to build a "Hello World!" program in C# using compilers, command line tools, and Visual Studio with its solution explorer and discusses primitive data types.
C# is an object-oriented programming language that is part of Microsoft's .NET framework. It can be used to create web applications, Windows applications, web services, and more. Some key features of C# include being modern, object-oriented, type-safe, and providing cross-platform interoperability through the .NET runtime. It is similar to but also has differences from languages like C++ and Java.
The document provides an overview of the .NET Framework, which is Microsoft's platform for application development. It describes the key components of the .NET Framework architecture, including the Common Language Runtime (CLR) environment that executes managed code, the framework class library, and support for different programming languages. The CLR is similar to a virtual machine that controls execution of .NET code and provides services like memory management and security.
in this tutorial we will discuss about
exception handling in C#
Exception class
creating user-defined exception
throw keyword
finally keyword
with examples'
This document provides summaries of key .NET concepts and technologies:
1. StringBuilder is more efficient than String for text manipulation as Strings are immutable and new instances are created with each operation, while StringBuilder allows in-place editing.
2. The main .NET types for data storage are arrays, which can only hold one data type, and hash tables like HashTable and SortedList which allow retrieval by key.
3. Exception handling in C# uses try-catch blocks, with catch optionally specifying the exception type. Finally blocks are always executed whether an exception occurs or not.
4. Namespaces and assemblies allow .NET applications to be modular and reference external libraries. Key namespaces include System and
This document provides a summary of questions for a C# interview. It includes general C# questions, class questions, method and property questions, events and delegates questions, XML documentation questions, debugging and testing questions, ADO.NET and database questions, and assembly questions. The author gathered these questions from various sources and their own experience, and is seeking feedback to improve or suggest new questions.
Top Angular Interview Questions and answers would help freshers and experienced candidates clear any Angular interview .Do let us know the Angular questions you faced in the interview that are covered ...
Java vs. C#
The document compares Java and C# programming languages. It discusses some key differences:
1. Syntax differences such as main method signatures, print statements, and array declarations are slightly different between the two languages.
2. Some concepts are modified in C# from Java, such as polymorphism requiring the virtual keyword, operator overloading restrictions, and switch statements allowing string cases.
3. C# introduces new concepts not in Java like enumerations, foreach loops, properties to encapsulate fields, pointers in unsafe contexts, and passing arguments by reference.
ASP.NET MVC Interview Questions and Answers by Shailendra ChauhanShailendra Chauhan
This book covers useful Interview Questions and Answers on ASP.NET MVC. This book is appropriate for novice as well as for senior level professionals who wants to strengthen their skills before appearing for an interview on ASP.NET MVC. This book is equally helpful to sharpen their programming skills and understanding ASP.NET MVC in a short time.
Basic java important interview questions and answers to secure a jobGaruda Trainings
P2Cinfotech is one of the leading, Online IT Training facilities and Job Consultant, spread all over the world. We have successfully conducted online classes on various Software Technologies that are currently in Demand. To name a few, we provide quality online training for QA, QTP, Manual Testing, HP LoadRunner, BA, Java Technologies, SEO, Web Technologies, .NET, Oracle DBA etc.
The document discusses key concepts of classes and objects in C# including defining classes, adding variables and methods, member access modifiers, creating objects, constructors, static members, private constructors, and indexers. It defines classes as user defined data types that can encapsulate data as fields and functions as methods. Objects are instances of classes that allow data and methods to be accessed. Constructors initialize objects, while static members are associated with the class rather than individual objects.
The document outlines coding conventions and best practices for C# programming, including recommendations for naming conventions, indentation, spacing, commenting, exception handling, and other programming practices. It was compiled from various sources including Microsoft guidelines to help improve code readability and maintainability. Adhering to consistent coding standards can reduce software maintenance costs by making code easier for others to understand and maintain.
The .NET Framework class library provides access to system functionality through classes, interfaces, and value types, forming the foundation for .NET applications. It contains core classes for common data types, events, exceptions, and more. The library also enables database access via ADO.NET, file input/output, and defines generic data structures known as collections in the System.Collections namespace.
Nested classes allow one class to be defined within another, enabling inner classes to access members of the outer class. There are several types of nested classes: inner classes that can be member, anonymous, or local; and static nested classes. Member inner classes can access outer class members and be invoked from within or outside the outer class. Anonymous inner classes have no name and are created from an abstract class or interface. Local inner classes exist only within a method. Static nested classes can access static members of the outer class but not instance members.
The document discusses various coding best practices and conventions for writing good quality code, including naming conventions, formatting guidelines, and general programming practices. Some key points covered include using descriptive names, consistent indentation and spacing, single responsibility per method, error handling, and separating concerns between layers.
The document provides answers to various manual testing questions and examples. It discusses key concepts like priority and severity, examples of high severity low priority defects and vice versa. It also covers test case review criteria, contents of requirements documents, differences between web and client-server testing, test plan contents, defect lifecycle, regression testing approach, and how to report defects in an excel sheet.
This document discusses exception handling in Java. It defines exceptions as abnormal conditions that disrupt normal program flow. Exception handling allows programs to gracefully handle runtime errors. The key aspects covered include the exception hierarchy, try-catch-finally syntax, checked and unchecked exceptions, and creating user-defined exceptions.
The document discusses exceptions handling in .NET. It defines exceptions as objects that deliver a powerful mechanism for centralized handling of errors and unusual events. It describes how exceptions can be handled using try-catch blocks, and how finally blocks ensure code execution regardless of exceptions. It also covers the Exception class hierarchy, throwing exceptions with the throw keyword, and best practices like ordering catch blocks and avoiding exceptions for normal flow control.
This document provides an introduction to the Java programming language. It discusses Java's evolution and history from 1991 to present. It also covers Java fundamentals including data types, operators, decision making and looping constructs, classes and objects, arrays and strings. The document is intended as an overview of the major topics and features in Java.
This document provides an overview of advanced TypeScript concepts and best practices. It discusses the TypeScript toolchain and environment, ES2015+ features like let, modules, and unit testing. It covers the TypeScript type system including type inference, annotations, and strict checking. Other topics include decorators, structural typing, destructuring, and the differences between TypeScript and JavaScript.
This document discusses delegates and events in C#. It explains that a delegate is an object that can refer to a method. There are four steps to using delegates: declaration, defining delegate methods, instantiation, and invocation. Delegates can be singlecast or multicast. Events are declared using an event keyword and a delegate type, and allow an object to notify other objects when an event occurs. Multicast delegates can invoke multiple methods by adding delegate instances together using + operator and removing them using - operator.
This document introduces C# and provides an overview of key concepts like .NET, the Common Language Runtime (CLR), the Framework Class Library (FCL), data types, namespaces, variables, statements, expressions, operators, and references. It also discusses how to build a "Hello World!" program in C# using compilers, command line tools, and Visual Studio with its solution explorer and discusses primitive data types.
C# is an object-oriented programming language that is part of Microsoft's .NET framework. It can be used to create web applications, Windows applications, web services, and more. Some key features of C# include being modern, object-oriented, type-safe, and providing cross-platform interoperability through the .NET runtime. It is similar to but also has differences from languages like C++ and Java.
The document provides an overview of the .NET Framework, which is Microsoft's platform for application development. It describes the key components of the .NET Framework architecture, including the Common Language Runtime (CLR) environment that executes managed code, the framework class library, and support for different programming languages. The CLR is similar to a virtual machine that controls execution of .NET code and provides services like memory management and security.
in this tutorial we will discuss about
exception handling in C#
Exception class
creating user-defined exception
throw keyword
finally keyword
with examples'
This document provides summaries of key .NET concepts and technologies:
1. StringBuilder is more efficient than String for text manipulation as Strings are immutable and new instances are created with each operation, while StringBuilder allows in-place editing.
2. The main .NET types for data storage are arrays, which can only hold one data type, and hash tables like HashTable and SortedList which allow retrieval by key.
3. Exception handling in C# uses try-catch blocks, with catch optionally specifying the exception type. Finally blocks are always executed whether an exception occurs or not.
4. Namespaces and assemblies allow .NET applications to be modular and reference external libraries. Key namespaces include System and
This document provides a summary of questions for a C# interview. It includes general C# questions, class questions, method and property questions, events and delegates questions, XML documentation questions, debugging and testing questions, ADO.NET and database questions, and assembly questions. The author gathered these questions from various sources and their own experience, and is seeking feedback to improve or suggest new questions.
The document contains questions and answers related to Java interview questions. It discusses topics like access modifiers, differences between abstract classes and interfaces, garbage collection, constructors vs methods, inheritance, polymorphism, exceptions and more. The questions aim to test the interviewee's understanding of core Java concepts.
This document contains 20 interview questions related to Java. It covers topics such as:
- The differences between constructors and methods, final and static keywords, and the purpose of the Void class.
- Details about finalize methods, just-in-time compilation, abstraction, encapsulation, inheritance, polymorphism, and method overloading and overriding.
- Questions about byte code, class vs instance variables, local variables, and class vs instance methods.
- Definitions of interfaces, abstract classes, access specifiers, identifiers, and literals.
- Questions about the name Java, calling 'sun' packages, Java releases, constructors vs methods, static vs non-static variables, while
This document provides an overview of key concepts covered in the Sun Certified Java Programmer (SCJP) 1.4 exam, including:
- Arrays in Java - how to declare, construct, initialize, and access array elements.
- Class modifiers like public, private, protected that restrict access, and final that prevents subclassing. Method and variable modifiers like static, abstract, synchronized are also discussed.
- Constructors - how they are invoked using this() and super(), default constructors, and cases where a default constructor is not provided by the compiler.
The document gives examples of each concept and is intended to help readers prepare for the SCJP certification exam by learning about its main objectives
Java is an object-oriented programming language initially developed by Sun Microsystems. It is platform independent because the Java code is compiled into bytecode, which can run on any Java Virtual Machine (JVM). Java is considered more secure than other languages because it does not use pointers, handles memory allocation automatically through garbage collection, and catches errors at compile-time. The key differences between C and Java are that Java does not support pointers, global variables, or preprocessor directives and it has automatic memory management and strict object-oriented approach.
This document discusses the evolution and key concepts of object-oriented programming (OOP). It describes how OOP languages implemented concepts like encapsulation, inheritance, and polymorphism differently. Early OOP languages introduced classes and objects, while some newer languages support interfaces and mixed inheritance. Implementing dynamic method binding and other OOP features requires tradeoffs between simplicity, performance, and functionality.
This document discusses the evolution and key concepts of object-oriented programming (OOP). It describes how OOP languages implemented concepts like encapsulation, inheritance, and polymorphism differently. Early OOP languages introduced classes and objects, which group related data and behaviors. Issues like visibility, inheritance, and reference models added complexity around how data is accessed and methods are called.
20 most important java programming interview questionsGradeup
The document discusses 20 important Java programming interview questions. It covers topics such as the differences between interfaces and abstract classes, when to use abstract classes versus interfaces, what the Serializable interface does, how to force garbage collection, the differences between StringBuffer and StringBuilder, checked and unchecked exceptions, how Java allocates stack and heap memory, Java reflection, the Java Virtual Machine, the differences between JDK and JRE, and more.
Some of the most common and easy-to-calculate/easy-to-measure code metrics. Understanding these can help you make your code better: avoiding code rot and writing maintainable code all starts here. Content is created for C# .net, however, the underlying principles apply to other languages/frameworks as well.
The document contains interview questions and answers related to C# programming concepts like classes, inheritance, polymorphism, interfaces, structs, arrays, collections, exceptions, and more. Some key points:
- C# does not support multiple inheritance but interfaces can be used instead. Private variables are inherited but not accessible.
- The top .NET class is System.Object. String is immutable while StringBuilder allows mutable operations. Arrays store single data types and Clone vs CopyTo were explained.
- Abstract classes define methods that must be overridden, while interfaces only contain method signatures that must be implemented. Structs are value types stored on the stack.
- Virtual methods can be overridden, while override changes
This document provides summaries of common Java interview questions. It discusses the differences between abstract classes and interfaces, checked and unchecked exceptions, user-defined exceptions, differences between C++ and Java, Java statements, JAR files, JNI, serialization, null interfaces, synchronized methods, singleton classes, compilation units, resource bundles, transient variables, the Collection API, iterators, observers and observables, synchronization, locks on classes, thread states, anonymous classes, primitive data types and their ranges.
The document discusses reflection in programming, specifically in Java. It provides an overview of reflection, its advantages like enabling polymorphism and creating adaptable code, and its disadvantages like reduced performance and increased complexity. It also discusses proper uses of reflection, like in development tools, and misuses, like when interfaces could enable the same functionality more cleanly. An example is provided to demonstrate how to use reflection in Java to inspect class details at runtime.
This document provides an overview of common object-oriented programming (OOP) concepts and interview questions. It discusses key OOP concepts like classes, objects, encapsulation, inheritance, polymorphism, and abstraction. It also explains common OOP-related interview questions on topics such as constructors, destructors, access modifiers, exception handling, and differences between abstract classes and interfaces. The document aims to help prepare for OOP-focused technical interviews.
Constructors cannot be made final as they are needed to create object instances and initialize class data. Constructors are similar to methods but cannot be directly invoked via method calls. The APK file format is an Android application package used for distribution and installation of Android apps. It is a zip file containing compiled code, resources, manifest, and other assets. Java is a popular object-oriented programming language that is portable and platform independent due to its compile-once-run-anywhere nature.
The Collection API provides classes and interfaces that support operations on collections of objects, such as HashSet, HashMap, ArrayList, and LinkedList. It replaces vectors, arrays, and hashtables. Iterator is an interface used to iterate through elements of a Collection. The differences between an abstract class and interface are that interfaces provide multiple inheritance while abstract classes do not, and interfaces only define public methods without implementation.
The document discusses a workshop on object-oriented programming. It begins with introducing the speaker and providing his credentials and contact information. It then covers key topics in object-oriented programming including classes, objects, namespaces, functions, methods, constructors, destructors, and the four pillars of OOP - encapsulation, inheritance, polymorphism, and abstraction. For each topic, it provides definitions and examples to explain the concepts. It emphasizes that OOP is a programming paradigm based on objects that can contain data and code.
The document provides definitions and explanations of various C# concepts including polymorphism, abstract methods, virtual methods, objects, classes, static methods, inheritance, virtual keyword, abstract classes, sealed modifiers, interfaces, pure virtual functions, access modifiers, reference types, overloading, overriding, encapsulation, arrays, array lists, hash tables, queues, stacks, early binding, late binding, sorted lists, and delegates. Key points covered include the differences between abstract and virtual methods, what defines a class versus an object, when to use static versus non-static methods, inheritance implementation in C#, and the purpose of interfaces.
How to ace your .NET technical interview :: .Net Technical Check TuneupBala Subra
This session is just not a brain dump of a technical interview on Microsoft technologies. It will be refresher on various pieces of the .NET, Database, OO, Process world. It will serve as a caution for interviewers to red flag their questions which are circulated on the webdom. For all the inquisitive and MCP certified brains, this will serve as a ‘whodunnit’ challenge. It will be a useful reference for the rest of us. The talk is divided into four sections. We will cover the typical BrainBench type questions to start with. Then we will attack the common problems encountered on the field and ideal solution paths to each of them. Third part will be about architectural trade-offs and ‘it depends’ scenarios. Finally, there will be discussion on best practices, books needed for interview preparation and open Q&A among the participants.
Visual Basic .NET (VB.NET or VB .NET) is a version of Microsoft's Visual Basic that was designed, as part of the company's .NET product group, to make Web services applications easier to develop.
This presentation was provided by Rebecca Benner, Ph.D., of the American Society of Anesthesiologists, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
CapTechTalks Webinar Slides June 2024 Donovan Wright.pptxCapitolTechU
Slides from a Capitol Technology University webinar held June 20, 2024. The webinar featured Dr. Donovan Wright, presenting on the Department of Defense Digital Transformation.
A Visual Guide to 1 Samuel | A Tale of Two HeartsSteve Thomason
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
How to Manage Reception Report in Odoo 17Celine George
A business may deal with both sales and purchases occasionally. They buy things from vendors and then sell them to their customers. Such dealings can be confusing at times. Because multiple clients may inquire about the same product at the same time, after purchasing those products, customers must be assigned to them. Odoo has a tool called Reception Report that can be used to complete this assignment. By enabling this, a reception report comes automatically after confirming a receipt, from which we can assign products to orders.
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) CurriculumMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
How Barcodes Can Be Leveraged Within Odoo 17Celine George
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2. Which class is super class of all classes in .NET Classes?
Object Class (System.Object) is the base class of .NET Classes
What is the execution entry point for a C# console application?
The Main method is the execution entry point of C# console
application.
static void main(string args[])
{
}
Why Main() method is static?
You need an entry point into your program. A static method can be
called without instantiating an object. Therefore main() needs to be
static in order to allow it to be the entry to your program.
What is string[] args in Main method? What is there use?
The parameter of the Main method is a String array that represents the
command-line arguments. The string[] args may contain any number
of Command line arguments which we want to pass to Main() method.
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3. .Net is Pass by Value or Pass by Reference?
By default in .Net, you don't pass objects by reference. You pass
references to objects by value. However, you get the illusion it's pass
by reference, because when you pass a reference type you get a copy
of the reference (the reference was passed by value).
What is nullable type in c#?
Nullable type is new concept introduced in C#2.0 which allow user to
assingn null value to primitive data types of C# language.
It is important to not taht Nullable type is Structure type.
What is Upcasting ?
Upcasting is an operation that creates a base class reference from a
subclass reference. (subclass -> superclass) (i.e. Manager -> Employee)
What is Downcasting?
Downcasting is an operation that creates a subclass reference from a
base class reference. (superclass -> subclass) (i.e. Employee ->
Manager)
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4. What is managed/unmanaged code?
Managed code is not directly compiled to machine code but to an
intermediate language which is interpreted and executed by some
service on a machine and is therefore operating within a secure
framework which handles things like memory and threads for you.
Unmanaged code is compiled diredtly to machine code and therefore
executed by the OS directly. So, it has the ability to do
damaging/powerful things Managed code does not.
C# is managed code because Common language runtime can compile
C# code to Intermediate language.
Can I override a static methods in C#?
No. You can't override a static method. A static method can't be virtual,
since it's not related to an instance of the class.
Can we call a non-static method from inside a static method?
Yes. You have to create an instance of that class within the static
method and then call it, but you ensure there is only one instance.
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5. Explain namespaces in C#?
Namespaces are containers for the classes. Namespaces are using for
grouping the related classes in C#.
"Using" keyword can be used for using the namespace in other
namespace.
What is the % operator?
It is the modulo (or modulus) operator. The modulus operator (%)
computes the remainder after dividing its first operand by its second.
3 % 2 == 1
What is Jagged Arrays?
The array which has elements of type array is called jagged array. The
elements can be of different dimensions and sizes.
We can also call jagged array as Array of arrays.
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6. Difference between a break statement and a continue statement?
Break statement: If a particular condition is satisfied then break
statement exits you out from a particular loop or switch case etc.
Continue statement: When the continue statement is encountered in a
code, all the actions up till this statement are executed again without
execution of any statement after the continue statement.
Difference between an if statement and a switch statement?
The if statement is used to select among two alternatives only. It uses a
boolean expression to decide which alternative should be executed.
While the switch statement is used to select among multiple
alternatives. It uses an int expression to determine which alternative
should be executed.
Difference between the prefix and postfix forms of the ++
operator?
Prefix: increments the current value and then passes it to the function.
i = 10;
Console.WriteLine(++i);
Above code return 11 because the value of i is incremented, and the
value of the expression is the new value of i.
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7. Postfix: passes the current value of i to the function and then increments
it.
i = 20;
Console.WriteLine(i++);
Above code return 20 because the value of i is incremented, but the
value of the expression is the original value of i
Can a private virtual method be overridden?
No, because they are not accessible outside the class.
Can you store multiple data types in System.Array?
No , because Array is type safe.
If you want to store different types, use System.Collections.ArrayList
or object[]
What’s a multicast delegate in C#?
Multicast delegate is an extension of normal delegate. It helps you to
point more than one method at a single moment of time
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8. Can a Class extend more than one Class?
It is not possible in C#, use interfaces instead.
Can we define private and protected modifiers for variables in
interfaces?
Interface is like a blueprint of any class, where you declare your
members. Any class that implement that interface is responsible for its
definition. Having private or protected members in an interface doesn't
make sense conceptually. Only public members matter to the code
consuming the interface. The public access specifier indicates that the
interface can be used by any class in any package.
When does the compiler supply a default constructor for a class?
In the CLI specification, a constructor is mandatory for non-static
classes, so at least a default constructor will be generated
by the compiler if you don't specify another constructor. So the default
constructor will be supplied by the C# Compiler for you.
How destructors are defined in C#?
C# destructors are special methods that contains clean up code for the
object. You can not call them explicitly in your code as they are called
implicitly by GC.
In C# they have same name as the class name preceded by the ~ sign.
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9. What is a structure in C#?
In C#, a structure is a value type data type. It helps you to make a single
variable hold related data of various data types. The struct keyword is
used for creating a structure.'
What's the difference between the Debug class and Trace class?
The Debug and Trace classes have very similar methods. The primary
difference is that calls to the Debug class are typically only included in
Debug build and Trace are included in all builds (Debug and Release).
What is the difference between == and quals() in C#?
The "==" compares object references and .Equals method compares
object content
Can we create abstract classes without any abstract methods?
Yes, you can. There is no requirement that abstract classes must have
abstract methods. An Abstract class means the definition of the class is
not complete and hence cannot be instantiated.
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10. Can we have static methods in interface?
You can't define static members on an interface in C#. An interface is
a contract, not an implementation.
Can we use "this" inside a static method in C#?
No. Because this points to an instance of the class, in the static method
you don't have an instance.
Can you inherit multiple interfaces?
Yes..you can
Explain object pool in C#?
Object pool is used to track the objects which are being used in the
code. So object pool reduces the object creation overhead.
What is static constructor?
Static constructor is used to initialize static data members as soon as
the class is referenced first time.
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11. Difference between this and base ?
this represents the current class instance while base the parent.
What's the base class of all exception classes?
System.Exception class is the base class for all exceptions.
How the exception handling is done in C#?
In C# there is a "try… catch" block to handle the exceptions.
Why to use "using" in C#?
The reason for the "using" statement is to ensure that the object is
disposed as soon as it goes out of scope, and it doesn't require explicit
code to ensure that this happens. Using calls Dispose() after the using-
block is left, even if the code throws an exception.
What is a collection?
A collection works as a container for instances of other classes. All
classes implement ICollection interface.
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12. Can finally block be used without catch?
Yes, it is possible to have try block without catch block by using finally
block. The "using" statement is equivalent try-finally.
How do you initiate a string without escaping each backslash?
You put an @ sign in front of the double-quoted string.
String ex = @"without escaping each backslashrn"
Can we execute multiple catch blocks in C#?
No. Once any exception is occurred it executes specific exception catch
block and the control comes out.
What does the term immutable mean?
The data value may not be changed.
What is Reflection?
Reflection allows us to get metadata and assemblies of an object at
runtime.
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