the slide about Exception handling in java and the file and io handling in java .inbuilt java packages in for java exception.for beginner in programming
The document discusses input/output streams in Java. It covers:
- Different types of data storage including transient RAM and persistent storage like disks.
- I/O sources and destinations like consoles, disks, networks etc. and how streams represent sequential bytes to abstract I/O details.
- Common Java I/O stream classes like FileReader, FileWriter, InputStream and OutputStream for reading/writing text and binary data from files.
- Using File class to represent files and directories with methods to check attributes, read content and manipulate files.
This document provides an overview of Java I/O including different types of I/O, how Java supports I/O through streams and classes like File, serialization, compression, Console, and Properties. It discusses byte and character streams, buffered streams, reading/writing files, and preferences. Key points are that Java I/O uses streams as an abstraction, byte streams operate on bytes while character streams use characters, and buffered streams improve efficiency by buffering reads/writes.
The document discusses Java streams and I/O. It defines streams as abstract representations of input/output devices that are sources or destinations of data. It describes byte and character streams, the core stream classes in java.io, predefined System streams, common stream subclasses, reading/writing files and binary data with byte streams, and reading/writing characters with character streams. It also covers object serialization/deserialization and compressing files with GZIP.
The document discusses various Java I/O streams including input streams, output streams, byte streams, character streams, buffered streams, properties class, print stream, file locking, serialization and print writer class. It provides examples of reading and writing files using FileInputStream, FileOutputStream, FileReader, FileWriter and other stream classes. Methods of different stream classes are also explained along with their usage.
Constructor is a special member method which will be called automatically when you create an object of any class.
The main purpose of using constructor is to initialize an object.
http://www.tutorial4us.com/java/java-constructor
This document provides an overview of Java threading concepts including the base threading topics of thread creation methods, life cycle, priorities, and synchronization. It also covers more advanced topics such as volatile variables, race conditions, deadlocks, starvation/livelock, inter-thread communication using wait/notify, thread pools, and remote method invocation. The document includes examples and explanations of key threading mechanisms in Java like semaphores and message passing.
The document discusses different types of streams in Java including file, byte, character, and standard streams. File streams allow reading and writing of files and include classes like FileInputStream and FileOutputStream for bytes and FileReader and FileWriter for characters. Byte streams handle 8-bit bytes while character streams handle 16-bit Unicode. Standard streams in Java are System.in for input, System.out for standard output, and System.err for errors. Sample code is provided to write to and read from files.
The document discusses input/output streams in Java. It covers:
- Different types of data storage including transient RAM and persistent storage like disks.
- I/O sources and destinations like consoles, disks, networks etc. and how streams represent sequential bytes to abstract I/O details.
- Common Java I/O stream classes like FileReader, FileWriter, InputStream and OutputStream for reading/writing text and binary data from files.
- Using File class to represent files and directories with methods to check attributes, read content and manipulate files.
This document provides an overview of Java I/O including different types of I/O, how Java supports I/O through streams and classes like File, serialization, compression, Console, and Properties. It discusses byte and character streams, buffered streams, reading/writing files, and preferences. Key points are that Java I/O uses streams as an abstraction, byte streams operate on bytes while character streams use characters, and buffered streams improve efficiency by buffering reads/writes.
The document discusses Java streams and I/O. It defines streams as abstract representations of input/output devices that are sources or destinations of data. It describes byte and character streams, the core stream classes in java.io, predefined System streams, common stream subclasses, reading/writing files and binary data with byte streams, and reading/writing characters with character streams. It also covers object serialization/deserialization and compressing files with GZIP.
The document discusses various Java I/O streams including input streams, output streams, byte streams, character streams, buffered streams, properties class, print stream, file locking, serialization and print writer class. It provides examples of reading and writing files using FileInputStream, FileOutputStream, FileReader, FileWriter and other stream classes. Methods of different stream classes are also explained along with their usage.
Constructor is a special member method which will be called automatically when you create an object of any class.
The main purpose of using constructor is to initialize an object.
http://www.tutorial4us.com/java/java-constructor
This document provides an overview of Java threading concepts including the base threading topics of thread creation methods, life cycle, priorities, and synchronization. It also covers more advanced topics such as volatile variables, race conditions, deadlocks, starvation/livelock, inter-thread communication using wait/notify, thread pools, and remote method invocation. The document includes examples and explanations of key threading mechanisms in Java like semaphores and message passing.
The document discusses different types of streams in Java including file, byte, character, and standard streams. File streams allow reading and writing of files and include classes like FileInputStream and FileOutputStream for bytes and FileReader and FileWriter for characters. Byte streams handle 8-bit bytes while character streams handle 16-bit Unicode. Standard streams in Java are System.in for input, System.out for standard output, and System.err for errors. Sample code is provided to write to and read from files.
This document discusses Java I/O and streams. It begins by introducing files and the File class, which provides methods for obtaining file properties and manipulating files. It then discusses reading and writing files using byte streams like FileInputStream and FileOutputStream. Character streams like PrintWriter and BufferedReader are presented for console I/O. Other stream classes covered include buffered streams, object streams for serialization, and data streams for primitive types. The key methods of various stream classes are listed.
Java Collections | Collections Framework in Java | Java Tutorial For Beginner...Edureka!
**** Java Certification Training: https://www.edureka.co/java-j2ee-soa-training ****
This Edureka tutorial on “Java Collections” will talk about the complete hierarchy of Collections Frameworks in Java. It will walk you through the various fundamentals of collections like Lists, Queue, Sets, Interfaces etc. Through this tutorial you will learn the following topics:
Java Collection Framework
Collection Framework Hierarchy
Interfaces
List
Queue
Set
Check out our Java Tutorial blog series: https://goo.gl/osrGrS
Check out our complete Youtube playlist here: https://goo.gl/gMFLx3
String is a non-primitive and immutable data type in Java that represents a sequence of characters. It is stored in the String Constant Pool in the heap memory. Methods like equals(), concat(), contains(), indexOf() etc. are used to perform operations on strings. String is immutable to prevent unexpected behavior if the contents of a string are changed.
Object-oriented programming Undergraduate Course Presentations
java.io streams and files in Java
University of Vale do Itajaí
Univali
Incremental Tecnologia
English version
The Java I/O package supports Java's basic input/output system for accessing external data from sources like files and networks. It defines streams as logical entities that produce or consume information, with byte streams for binary data and character streams for Unicode text. Streams are linked to physical devices and behave consistently across different types of devices. The package defines hierarchies of input and output stream classes, with abstract base classes like InputStream/OutputStream for bytes and Reader/Writer for characters.
This document provides an overview of Java input/output (I/O) concepts including reading from and writing to the console, files, and streams. It discusses different I/O stream classes like PrintStream, InputStream, FileReader, FileWriter, BufferedReader, and how to read/write characters, bytes and objects in Java. The document also introduces new I/O features in Java 7 like try-with-resources for automatic resource management.
- Java uses streams to perform input and output operations which allow for fast processing. Streams are sequences of data composed of bytes.
- The main stream classes in Java are InputStream for reading data and OutputStream for writing data. These classes handle byte-oriented input/output.
- FileInputStream and FileOutputStream classes allow reading and writing of data to files by extending InputStream and OutputStream respectively. They are used for file handling operations in Java.
Slides for a lightning talk on Java 8 lambda expressions I gave at the Near Infinity (www.nearinfinity.com) 2013 spring conference.
The associated sample code is on GitHub at https://github.com/sleberknight/java8-lambda-samples
This document discusses exception handling in Java. It defines exceptions as events that disrupt normal program flow. It describes try/catch blocks for handling exceptions and lists advantages like separating error handling code. It discusses different exception types like checked exceptions that must be declared, unchecked exceptions for logic errors, and Errors for JVM problems. It provides best practices like throwing exceptions for broken contracts and guidelines for when to catch exceptions. It also describes antipatterns to avoid, like catching generic exceptions, and exception logging and chaining techniques.
The wrapper classes in Java are used to convert primitive data types like int and float into objects. There are eight wrapper classes that correspond to the eight primitive types. Wrapper classes allow primitive types to be used in contexts that require objects, like collections. They provide methods to convert between primitive types and their corresponding wrapper class objects.
In this core java training session, you will learn Collections – Lists, Sets. Topics covered in this session are:
• List – ArrayList, LinkedList
• Set – HashSet, LinkedHashSet, TreeSet
For more information about this course visit on this link: https://www.mindsmapped.com/courses/software-development/learn-java-fundamentals-hands-on-training-on-core-java-concepts/
This document provides an overview of file handling in Java. It discusses key concepts like streams and stream classes for reading and writing different data types to files. The main stream classes covered are byte streams for reading/writing bytes and character streams for reading/writing characters. It also describes techniques for concatenating and buffering files, performing random access on files, and handling interactive input/output.
This document provides an overview of generics in Java. It discusses the benefits of generics, including type safety and compile-time error detection. It also covers generic classes and interfaces, generic methods, wildcard types, and restrictions on generics. Examples are provided to illustrate key concepts like generic classes with multiple type parameters, bounded types, and the implementation of generics using type erasure.
The document discusses threads and multithreading in Java. It defines a thread as a single sequential flow of control within a program. Multithreading allows a program to be divided into multiple subprograms that can run concurrently. Threads have various states like newborn, runnable, running, blocked, and dead. The key methods for managing threads include start(), sleep(), yield(), join(), wait(), notify(). Synchronization is needed when multiple threads access shared resources to prevent inconsistencies. Deadlocks can occur when threads wait indefinitely for each other.
In this core java training session, you will learn Collections - Maps. Topics covered in this session are:
• Collections – Maps
• Map Interface
• Map methods
• Mapuse
• Hashmap
• Treemap
• Utilities
For more information about this course visit on this link: https://www.mindsmapped.com/courses/software-development/learn-java-fundamentals-hands-on-training-on-core-java-concepts/
- Java threads allow for multithreaded and parallel execution where different parts of a program can run simultaneously.
- There are two main ways to create a Java thread: extending the Thread class or implementing the Runnable interface.
- To start a thread, its start() method must be called rather than run(). Calling run() results in serial execution rather than parallel execution of threads.
- Synchronized methods use intrinsic locks on objects to allow only one thread to execute synchronized code at a time, preventing race conditions when accessing shared resources.
This document discusses the collection framework in Java. It provides an overview of the need for collections due to limitations of arrays. It then describes the key interfaces in the collection framework - Collection, List, Set, SortedSet, NavigableSet, Queue, Map, SortedMap, and NavigableMap. For each interface, it provides a brief description of its purpose and characteristics. It explains that collections allow storing heterogeneous data types with variable sizes, unlike arrays.
Java Hibernate Programming with Architecture Diagram and Examplekamal kotecha
Java Hibernate Introduction, Architecture and Example with step by step guidance to run the program especially for students and teachers.
Learn More @ http://java2all.com/technology/hibernate
This document provides an overview of Java I/O streams and how to open, use, and close them. It discusses how opening a stream creates a connection to external data, using a stream involves reading or writing data, and closing streams is important to release resources. It then gives examples of opening a FileReader stream, reading lines with a BufferedReader, and closing streams. The document also introduces LineReader and LineWriter classes that simplify reading and writing text files line-by-line in Java.
This document provides an overview of Java I/O streams and how to open, use, and close them. It discusses how opening a stream creates a connection to external data, using a stream involves reading or writing data, and closing streams is important to release resources. It then gives examples of opening a FileReader stream, reading lines with a BufferedReader, and includes code for a LineReader class to simplify reading text files and a LineWriter class to write text files.
This document discusses Java I/O and streams. It begins by introducing files and the File class, which provides methods for obtaining file properties and manipulating files. It then discusses reading and writing files using byte streams like FileInputStream and FileOutputStream. Character streams like PrintWriter and BufferedReader are presented for console I/O. Other stream classes covered include buffered streams, object streams for serialization, and data streams for primitive types. The key methods of various stream classes are listed.
Java Collections | Collections Framework in Java | Java Tutorial For Beginner...Edureka!
**** Java Certification Training: https://www.edureka.co/java-j2ee-soa-training ****
This Edureka tutorial on “Java Collections” will talk about the complete hierarchy of Collections Frameworks in Java. It will walk you through the various fundamentals of collections like Lists, Queue, Sets, Interfaces etc. Through this tutorial you will learn the following topics:
Java Collection Framework
Collection Framework Hierarchy
Interfaces
List
Queue
Set
Check out our Java Tutorial blog series: https://goo.gl/osrGrS
Check out our complete Youtube playlist here: https://goo.gl/gMFLx3
String is a non-primitive and immutable data type in Java that represents a sequence of characters. It is stored in the String Constant Pool in the heap memory. Methods like equals(), concat(), contains(), indexOf() etc. are used to perform operations on strings. String is immutable to prevent unexpected behavior if the contents of a string are changed.
Object-oriented programming Undergraduate Course Presentations
java.io streams and files in Java
University of Vale do Itajaí
Univali
Incremental Tecnologia
English version
The Java I/O package supports Java's basic input/output system for accessing external data from sources like files and networks. It defines streams as logical entities that produce or consume information, with byte streams for binary data and character streams for Unicode text. Streams are linked to physical devices and behave consistently across different types of devices. The package defines hierarchies of input and output stream classes, with abstract base classes like InputStream/OutputStream for bytes and Reader/Writer for characters.
This document provides an overview of Java input/output (I/O) concepts including reading from and writing to the console, files, and streams. It discusses different I/O stream classes like PrintStream, InputStream, FileReader, FileWriter, BufferedReader, and how to read/write characters, bytes and objects in Java. The document also introduces new I/O features in Java 7 like try-with-resources for automatic resource management.
- Java uses streams to perform input and output operations which allow for fast processing. Streams are sequences of data composed of bytes.
- The main stream classes in Java are InputStream for reading data and OutputStream for writing data. These classes handle byte-oriented input/output.
- FileInputStream and FileOutputStream classes allow reading and writing of data to files by extending InputStream and OutputStream respectively. They are used for file handling operations in Java.
Slides for a lightning talk on Java 8 lambda expressions I gave at the Near Infinity (www.nearinfinity.com) 2013 spring conference.
The associated sample code is on GitHub at https://github.com/sleberknight/java8-lambda-samples
This document discusses exception handling in Java. It defines exceptions as events that disrupt normal program flow. It describes try/catch blocks for handling exceptions and lists advantages like separating error handling code. It discusses different exception types like checked exceptions that must be declared, unchecked exceptions for logic errors, and Errors for JVM problems. It provides best practices like throwing exceptions for broken contracts and guidelines for when to catch exceptions. It also describes antipatterns to avoid, like catching generic exceptions, and exception logging and chaining techniques.
The wrapper classes in Java are used to convert primitive data types like int and float into objects. There are eight wrapper classes that correspond to the eight primitive types. Wrapper classes allow primitive types to be used in contexts that require objects, like collections. They provide methods to convert between primitive types and their corresponding wrapper class objects.
In this core java training session, you will learn Collections – Lists, Sets. Topics covered in this session are:
• List – ArrayList, LinkedList
• Set – HashSet, LinkedHashSet, TreeSet
For more information about this course visit on this link: https://www.mindsmapped.com/courses/software-development/learn-java-fundamentals-hands-on-training-on-core-java-concepts/
This document provides an overview of file handling in Java. It discusses key concepts like streams and stream classes for reading and writing different data types to files. The main stream classes covered are byte streams for reading/writing bytes and character streams for reading/writing characters. It also describes techniques for concatenating and buffering files, performing random access on files, and handling interactive input/output.
This document provides an overview of generics in Java. It discusses the benefits of generics, including type safety and compile-time error detection. It also covers generic classes and interfaces, generic methods, wildcard types, and restrictions on generics. Examples are provided to illustrate key concepts like generic classes with multiple type parameters, bounded types, and the implementation of generics using type erasure.
The document discusses threads and multithreading in Java. It defines a thread as a single sequential flow of control within a program. Multithreading allows a program to be divided into multiple subprograms that can run concurrently. Threads have various states like newborn, runnable, running, blocked, and dead. The key methods for managing threads include start(), sleep(), yield(), join(), wait(), notify(). Synchronization is needed when multiple threads access shared resources to prevent inconsistencies. Deadlocks can occur when threads wait indefinitely for each other.
In this core java training session, you will learn Collections - Maps. Topics covered in this session are:
• Collections – Maps
• Map Interface
• Map methods
• Mapuse
• Hashmap
• Treemap
• Utilities
For more information about this course visit on this link: https://www.mindsmapped.com/courses/software-development/learn-java-fundamentals-hands-on-training-on-core-java-concepts/
- Java threads allow for multithreaded and parallel execution where different parts of a program can run simultaneously.
- There are two main ways to create a Java thread: extending the Thread class or implementing the Runnable interface.
- To start a thread, its start() method must be called rather than run(). Calling run() results in serial execution rather than parallel execution of threads.
- Synchronized methods use intrinsic locks on objects to allow only one thread to execute synchronized code at a time, preventing race conditions when accessing shared resources.
This document discusses the collection framework in Java. It provides an overview of the need for collections due to limitations of arrays. It then describes the key interfaces in the collection framework - Collection, List, Set, SortedSet, NavigableSet, Queue, Map, SortedMap, and NavigableMap. For each interface, it provides a brief description of its purpose and characteristics. It explains that collections allow storing heterogeneous data types with variable sizes, unlike arrays.
Java Hibernate Programming with Architecture Diagram and Examplekamal kotecha
Java Hibernate Introduction, Architecture and Example with step by step guidance to run the program especially for students and teachers.
Learn More @ http://java2all.com/technology/hibernate
This document provides an overview of Java I/O streams and how to open, use, and close them. It discusses how opening a stream creates a connection to external data, using a stream involves reading or writing data, and closing streams is important to release resources. It then gives examples of opening a FileReader stream, reading lines with a BufferedReader, and closing streams. The document also introduces LineReader and LineWriter classes that simplify reading and writing text files line-by-line in Java.
This document provides an overview of Java I/O streams and how to open, use, and close them. It discusses how opening a stream creates a connection to external data, using a stream involves reading or writing data, and closing streams is important to release resources. It then gives examples of opening a FileReader stream, reading lines with a BufferedReader, and includes code for a LineReader class to simplify reading text files and a LineWriter class to write text files.
The document discusses input/output files in Java. It covers the key classes used for reading and writing files in Java, including FileInputStream, FileOutputStream, FileReader, and FileWriter. It also discusses byte streams versus character streams, and provides examples of reading and writing to files in Java using these classes. Standard input/output streams like System.in and System.out are also covered.
This document discusses files and exception handling in Python. It begins by defining files and describing different types of files like data, text, and program files. It then covers topics like sequential and random file access, opening and closing files, reading and writing to files, and using file dialogs. The document also discusses retrieving data from the web using functions like urlopen. Finally, it defines exceptions and different types of errors like syntax, runtime, and logical errors. It explains how to handle exceptions in Python using try/except blocks and predefined or user-defined exceptions.
C++ - UNIT_-_V.pptx which contains details about File ConceptsANUSUYA S
The document discusses file handling in C++. It explains that files are used to store data permanently on a storage device. There are three main classes used for file handling - ifstream for input, ofstream for output, and fstream for both input and output. The key file handling operations include opening a file using open(), reading from a file using read(), writing to a file using write(), and closing a file using close(). It also discusses opening files in different modes, reading and writing binary data to files, and handling exceptions that may occur during file operations.
The document discusses input and output streams in Java. It provides an overview of character streams, byte streams, and connected streams. It explains how to read from and write to files using FileInputStream, FileOutputStream, FileReader, and FileWriter. It emphasizes the importance of specifying the correct character encoding when working with text files. An example demonstrates reading an image file as bytes, modifying some bytes, and writing the image to a new file.
The document discusses streams and input/output in Java. It introduces streams as a way to represent ordered sequences of data in a uniform manner across different I/O devices. It describes the different types of streams in Java, including byte streams and character streams. It also outlines some of the key input and output stream classes in Java and common stream operations like reading, writing, skipping bytes, and closing streams.
The document discusses file input/output (I/O) in Java. It covers:
1) Java's I/O system of readers, writers, and streams for reading from and writing to files.
2) Exceptions in file I/O and how to handle errors using try/catch blocks.
3) Examples of reading text and binary data from files, writing data to files, and scanning files for specific data.
This document provides an introduction to file handling in Java. It discusses how file handling allows programs to permanently store output data by writing it to files on secondary storage devices like hard disks. It covers key concepts like input and output streams that represent the flow of data into and out of a program. It also discusses how to create, write to, read from, and delete files in Java using classes like File, FileWriter, FileReader and Scanner. Common file methods like getName(), getAbsolutePath(), exists() are also outlined.
This document discusses Java's input/output (I/O) capabilities through the java.io package. It describes the core I/O stream classes like InputStream, OutputStream, Reader and Writer. It also covers file I/O using File and FileInput/OutputStream classes. Buffered, filtered and character streams are explained. The use of serialization interfaces like Serializable and Externalizable for object I/O is summarized. The document provides examples of reading, writing and manipulating files and directories in Java.
This document discusses Java input/output (I/O) streams and readers/writers for processing files, URLs, and other sources of input and output. It covers obtaining and working with input and output streams, reading and writing bytes, character encodings, text I/O, random access files, file operations, URL connections, and object serialization. The key classes for I/O include InputStream, OutputStream, Reader, Writer, File, Path, and URLConnection.
The document provides an overview of file handling in C++. It discusses key concepts such as streams, file types (text and binary), opening and closing files, file modes, input/output operations, and file pointers. Functions for reading and writing to text files include put(), get(), and getline(). Binary files use write() and read() functions. File pointers can be manipulated using seekg(), seekp(), tellg(), and tellp() to move through files.
The document provides information about reading and writing text files in .NET using streams. It discusses the StreamReader and StreamWriter classes for reading and writing text files respectively. It also covers handling exceptions that can occur during input/output operations like file not found errors. Examples are given to demonstrate reading a text file line by line, writing numbers to a file, and fixing timing offsets in movie subtitle files.
Here are the answers to the quiz questions:
1. def read_file(file_name):
lines = []
with open(file_name, 'r') as f:
for line in f:
lines.append(line)
return lines
2. def input_list():
n = int(input("Enter number of elements : "))
list1 = []
for i in range(0, n):
ele = float(input())
list1.append(ele)
return list1
def output_list(list1):
for i in list1:
print(i)
3. def display_file(filename):
with open(filename
This document discusses file handling in C++. It covers key concepts like opening and closing files, reading from and writing to files, and different file access methods like sequential and random access. The document outlines the steps to handle files which include declaring a file name variable, associating it with a disk file, opening the file, using file input/output functions to read and write, and then closing the file. Common file handling functions like open(), close(), get(), put(), read(), and write() are also explained.
This document discusses file handling in Java. It begins by explaining that a file stores related information together and describes standard input, output, and error streams in Java which represent System.in, System.out, and System.err. It then discusses input and output streams in Java, describing how to create them and common methods. It also covers the Java File class and common file operations like creating, reading from, writing to, and deleting files.
This document provides an overview of input/output operations in Java using the java.io package. It discusses streams and channels, file I/O, reading and writing files, serialization, and the Observer and Observable interfaces. The key classes covered include File, PrintWriter, Scanner, InputStream, OutputStream, Reader, Writer, Buffer, Channel, and classes for serialization. Examples are provided for reading and writing files using byte streams, character streams, buffers, and channels.
The document discusses Ruby's input and output capabilities. It covers:
- Ruby provides two interfaces for I/O - simple print/gets methods and more advanced methods in the Kernel module.
- All I/O is handled by the IO base class, which File and BasicSocket subclass. IO objects represent bidirectional channels between Ruby and external resources.
- Files can be opened for reading, writing or both using File.new/File.open, specifying a mode. File streams support various methods for reading and writing lines and bytes.
- Random access methods like pos, tell, seek allow reading/writing specific locations in files and strings.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
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How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
4. What is an Exception?
An exception is an unexpected event that occurs during program
execution. It affects the flow of the program instructions which can
cause the program to terminate abnormally.
An exception can occur for many reasons. Some of them are:
● Invalid user input
● Device failure
● Loss of network connection
● Physical limitations (out of disk memory)
● Code errors
● Opening an unavailable file
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5. Java Exception hierarchy
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Exception, that means exceptional errors. Actually exceptions are
used for handling errors.Error that occurs during runtime .Cause
normal program flow to be disrupted
There is two type of Exception
Classifications
Unchecked- Occur in Run-time
Checked- Occur in Compile-time
6. Common Exceptions
Unchecked Exception
ArithmeticException--thrown if a program attempts to perform
division by zero
ArrayIndexOutOfBoundsException--thrown if a program
attempts to access an index of an array that does not exist
StringIndexOutOfBoundsException--thrown if a program
attempts to access a character at a non-existent index in a
String
NullPointerException--thrown if the JVM attempts to perform an
operation on an Object that points to no data, or null
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7. Common Exceptions
NumberFormatException--thrown if a program is attempting to
convert a string to a numerical data type, and the string
contains inappropriate characters (i.e. 'z' or 'Q')
Checked Exceptions
ClassNotFoundException--thrown if a program can not find a
class it depends at runtime (i.e., the class's ".class" file cannot
be found or was removed from the CLASSPATH)
FileNotFoundException--when a file with the specified
pathname does not exist.
IOException--actually contained in java.io, but it is thrown if
the JVM failed to open an I/O stream
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8. Exception Handling
In Java, we use the exception handler components try, catch and
finally blocks to handle exceptions.
To catch and handle an exception, we place the try...catch...finally
block around the code that might generate an exception. The finally
block is optional.
we can now catch more than one type of exception in a single catch
block.Each exception type that can be handled by the catch block is
separated using a vertical bar or pipe |.
catch (ExceptionType1 e1|ExceptionType2 e2) {
// catch block
}
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10. throw, throws statement
Throw
The throw keyword is used to throw an exception explicitly. Only
object of Throwable class or its sub classes can be thrown. Program
execution stops on encountering throw statement, and the closest catch
statement is checked for matching type of exception
Throws
The throws keyword is used to declare the list of exception that a
method may throw during execution of program. Any method that is
capable of causing exceptions must list all the exceptions possible during
its execution, so that anyone calling that method gets a prior knowledge
about which exceptions are to be handled.
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11. Error and Exception
An error is an irrecoverable condition occurring at runtime.
Though error can be caught in catch block but the execution of
application will come to a halt and is not recoverable.
While exceptions are conditions that occur because of bad input
etc.
In most of the cases it is possible to recover from an exception.
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13. Streams
All modern I/O is stream-based
A stream is a connection to a source of data or to a destination for
data (sometimes both)
An input stream may be associated with the keyboard
An input stream or an output stream may be associated with a file
Different streams have different characteristics:
A file has a definite length, and therefore an end
Keyboard input has no specific end
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14. 14
How TO Do
import java.io.*;
*Open the stream
*Use the stream
(read, write, or both)
*Close the stream
.
15. There is data external to your program that you want to get, or you
want to put data somewhere outside your program
When you open a stream, you are making a connection to that
external place
Once the connection is made, you forget about the external place
and just use the stream
Opening a Stream
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16. Opening a Stream: Example
A FileReader is used to connect to a file that will be used for input:
FileReader fileReader = new FileReader (fileName);
The fileName specifies where the (external) file is to be found
You never use fileName again; instead, you use fileReader
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17. Using a Stream
Some streams can be used only for input, others only for output,
still others for both
Using a stream means doing input from it or output to it
But it’s not usually that simple you need to manipulate the data in
some way as it comes in or goes out
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18. Using a Stream :Example
int ch;
ch = FileReader.read( );
The FileReader.read() method reads one character and returns it
as an integer, or -1 if there are no more characters to read
The meaning of the integer depends on the file encoding (ASCII,
Unicode, other)
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19. Using BufferReader
A BufferedReader will convert integers to characters; it can also
read whole lines
The constructor for BufferedReader takes a FileReader
parameter:
BufferedReader bufferedReader =
new BufferedReader(fileReader);
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20. Closing
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A stream is an expensive resource
There is a limit on the number of streams that you can have open at
one time
You should not have more than one stream open on the same file
You must close a stream before you can open it again
Always close your streams!
22. File class
The File class in the Java IO API gives you access to the
underlying file system.
The File class is Java's representation of a file or directory path
name.
This class offers a rich set of static methods for reading, writing,
and manipulating files and directories.
The Files methods work on instances of Path objects
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23. Operations in File class
The File class contains several methods for working with the path
name:
Check if a file exists.
Read the length of a file.
Rename or move a file/ Directory.
Delete a file/ Directory.
Check if path is file or directory.
Read list of files in a directory.
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24. Creating a File object
You create a File object by passing in a String that represents the
name of a file.
For example,
File a = new File("/usr/local/bin/smurf");
This defines an abstract file name for the smurf file in
directory /usr/local/bin.
This is an absolute abstract file name.
You could also create a file object as follows:
File b = new File("bin/smurf");
This is a relative abstract file name
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25. File Object Methods
Boolean exists() : Returns true if
the file exist.
Boolean canRead() : Returns true if
the file is readable.
Boolean canWrite() : Returns true
if the file is writable.
Boolean isAbsolute() : Returns true
if the file name is an absolute path
name.
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Boolean isDirectory() : Returns
true if the file name is a directory.
Boolean isFile() : Returns true if
the file name is a "normal" file
(depends on OS)
Boolean isHidden() : Returns true
if the file is marked "hidden“.
long lastModified() : Returns a long
indicating the last time the file was
modified.
26. File Object Methods
long length() : Returns the length
of the contents of the file.
Boolean setReadOnly() : Marks
the file read-only (returns true if
succeeded)
void setLastModified(long) :
Explicitly sets the modification
time of a file
Boolean createNewFile() :
Creates a new file with this
abstract file name.
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Returns true if the file was
created, false if the file already
existed.
Boolean delete(): Deletes the
file specified by this file name.
Boolean mkdir() : Creates this
directory.All parent directories
must already exist.
Boolean mkdirs() : Creates this
directory and any parent
directories that do not exist.
28. Reader class
The Reader class is the base class for all Reader's in the Java IO
API.
A Reader is like an InputStream except that it is character based
rather than byte based.
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29. FileReader Class
Java FileReader class is used to read data from file .it return in
bytes format like FileInputstream.It is character-oriented class
which is used for file handling in java.
Object creation:
FileReader fr=new FileReader("path");
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30. BufferedReader Class
Java BufferedReader class is used to read the text from a
character-based input stream. It can be used to read data line by
line by readLine() method. It makes the performance fast. It
inherits Reader class.
Object creation:
BufferedReader br= new BufferedReader();
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31. Writer class
The Writer class is the base class for all Writer's in the Java IO
API.
A Writer is like an OutputStream except that it is character based
rather than byte based.
You will normally use a Writer subclass rather than a Writer
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32. FileWritter Class
Java FileWriter class is used to write character-oriented data to a
file. It is character-oriented class which is used for file handling in
java.Unlike FileOutputStream class, you don't need to convert
string into byte array because it provides method to write string
directly.
Object creation:
FileWriter fw=new FileWriter("path");
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33. BufferedWitter Class
Java BufferedWriter class is used to provide buffering for Writer
instances. It makes the performance fast. It inherits Writer class.
The buffering characters are used for providing the efficient
writing of single arrays, characters, and strings.
Object creation:
BufferedWritter bw= new BufferedWritter();
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35. Scanner Class
Scanner class in Java is found in the java.util package. Java
provides various ways to read input from the keyboard, the
java.util.Scanner class is one of them.
The Java Scanner class is widely used to parse text for strings and
primitive types using a regular expression. It is the simplest way to
get input in Java. By the help of Scanner in Java, we can get input
from the user in primitive types such as int, long, double, byte,
float, short, etc.
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36. Scanner Methods
For each of the primitive types there is a corresponding nextXxx()
method that returns a value of that type. If the string cannot be
interpreted as that type, then an InputMismatchException is
thrown.
int nextInt() : Returns the next token as an int.
long nextLong() : Returns the next token as a long.
float nextFloat() : Returns the next token as a float.
double nextDouble() : Returns the next token as a long.
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37. Scanner Methods
String nextLine() : Returns the rest of the current line, excluding
any line separator at the end.
String next() : Finds and returns the next complete token from this
scanner and returns it as a string; a token is usually ended by
whitespace such as a blank or line break. If not token exists,
NoSuchElementException is thrown.
void close() : Closes the scanner.
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38. Using a Scanner Class
To use the Scanner utility, we need to create an object.
Scanner Scan = new Scanner();
To get user input the above we need to use the system input
stream.
Scanner Scan = new Scanner( System.in );
The user input will be printed to the screen using the below
syntax.
System.out.println( Scan.nextLine() );
This will receive the input of the next line of text someone
types into the keyboard.
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40. Object Serialization
Serialization in Java is a mechanism of writing the state of an
object into a byte-stream.
The reverse operation of serialization is called deserialization
where byte-stream is converted into an object. The serialization
and deserialization process is platform-independent, it means you
can serialize an object in a platform and deserialize in different
platform.
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41. Using a Scanner Class
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Serialization
Deserialization
Object Byte
Stream