- The document provides an introduction to Java programming including an overview of Java, its history, platforms, architecture, components, applications, features, and setting up Java.
- It describes Java as a simple, general-purpose, object-oriented language that is architecture neutral, portable, robust and secure.
- The document outlines the key components of Java including the Java Virtual Machine (JVM), Java Runtime Environment (JRE), and Java Development Kit (JDK).
Object-oriented programming uses abstraction and encapsulation through abstract data types (ADTs). An ADT defines a data type and its interface independently of its implementation. This allows information hiding and modular program design. Common languages like C++, Java, and Ruby support ADTs through classes or modules, which package data with methods, support inheritance and polymorphism, and provide visibility control through private/public access specifiers. Parameterized ADTs allow a data type to work with different element types. Namespaces and packages provide separate scopes to avoid naming conflicts.
This document discusses different types of collections that can be used to store data. It describes linear collections like arrays, lists, stacks and queues. It also describes nonlinear collections like trees, graphs and sets. For linear collections, it distinguishes between direct access collections like arrays which allow direct access by index, and sequential access collections like lists which require traversing the list. It provides examples of different collection classes and methods in C#.
This document discusses Java collections framework and various collection classes like ArrayList, LinkedList, HashSet, HashMap etc. It provides definitions and examples of commonly used collection interfaces like List, Set and Map. It explains key features of different collection classes like order, duplicates allowed, synchronization etc. Iterators and generic types are also covered with examples to iterate and create typed collection classes.
Java uses streams to handle input/output operations. Streams provide a standardized way to read from and write to various sources and sinks like files, networks, and buffers. There are byte streams that handle input/output of bytes and character streams that handle characters. Common stream classes include FileInputStream, FileOutputStream, BufferedReader, and BufferedWriter which are used to read from and write to files and console. Streams can be chained together for complex I/O processing.
Introduction to Java, its syntax and environment setup
The first tutorial is going to be an introduction to Java and its syntax. The tutorial starts with basic examples such as printing out a String and ends with some quiz questions for you to practice what you have learned. Also I provided the download links for the Integrated Development Environments for Java Programming. The rest of the tutorials will follow the same content-quiz pattern so get ready for some hands on experience!
Check out rest of the Tutorials: https://berksoysal.blogspot.com/2016/06/java-se-tutorials-basics-exercises.html
This document discusses data members and member functions in C++ classes. It defines data members as variables declared inside a class that can be of any type. Member functions are functions declared inside a class that can access and perform operations on the class's data members. The document outlines how data members and member functions can be defined with public, private, or protected visibility and how they can be accessed from within and outside the class. It also provides syntax examples for defining member functions both inside and outside the class definition.
This document provides an overview of Java collections and common collection interfaces like List, Set, Map, Queue, and their implementations. It discusses the core collection interfaces like Collection, List, Set, Map, Queue, and their methods. Specific implementations of these interfaces are covered like ArrayList, LinkedList, HashSet, TreeSet, HashMap, TreeMap, PriorityQueue. The document is presented by Ravi Kant Sahu, Assistant Professor at Lovely Professional University in Punjab, India and provides details on using collections in Java.
The document provides an overview of defining custom classes in Java, including how to return objects from methods, use the 'this' keyword, define overloaded methods and constructors, create class and static methods, implement parameter passing, organize classes into packages, and document classes with Javadoc comments. Key concepts like inheritance, polymorphism, and abstraction are not discussed. The chapter aims to describe the basics of defining custom classes in Java.
The document discusses the C++ Standard Library and Standard Template Library (STL). It explains that the Standard Library contains classes and functions organized into a Standard Function Library and Object-Oriented Class Library. It also describes templates as a way to write generic functions and classes that can work on different data types. The STL is further described as a set of template classes that provide common data structures like lists, stacks, and arrays. Key components of the STL include containers for storing data, iterators for accessing elements in containers, and algorithms for manipulating data. Common containers, iterators, and algorithms are defined along with examples.
This is the object oriented lecture nmbr 3rd , if you want lecture 2 or 1 u can check it my account , this is the programing tutorial, please follow me and thank you
Abstract: This PDSG workshop introduces basic concepts of categorical variables in training data. Concepts covered are dummy variable conversion, and dummy variable trap.
Level: Fundamental
Requirements: No prior programming or statistics knowledge required.
The document provides information on various C++ concepts related to object oriented programming including:
- Data encapsulation and abstraction which involve wrapping data and functions together into classes and hiding implementation details.
- Inheritance which allows classes to inherit attributes and behaviors from other classes to promote code reuse.
- Polymorphism which allows classes to have different implementations of the same methods.
- Constructors and destructors which are special methods used to initialize and clean up objects.
- Composition and aggregation which describe relationships where a class contains other class objects.
The document discusses stacks and queues as data structures. It defines stacks as first-in last-out (LIFO) structures where elements are added and removed from one end of the list. Queues are defined as first-in first-out (FIFO) structures where elements are added to one end and removed from the other. The document provides examples of using stacks and queues in programming and describes the common operations that can be performed on each type of data structure.
This document provides an overview of object-oriented programming concepts in C++, including classes, objects, encapsulation, inheritance, polymorphism, and more. Key concepts are defined, such as classes containing data members and methods. Inheritance allows derived classes to inherit properties of base classes. Polymorphism allows calling the correct overridden method at runtime based on the object type. Virtual functions provide late binding so the correct derived class method is called.
A class defines a data structure that can contain both data and functions as members. An object is an instance of a class that allocates memory for the class's data members. Classes allow the declaration of multiple objects that each have their own copies of the class's data members and can access the class's member functions. Constructors initialize an object's data members when it is created, while destructors perform cleanup tasks when an object is destroyed.
1) The document discusses key concepts in Java including classes, objects, instance variables, methods, constructors, method overloading, static members, and nested methods.
2) A class defines the state and behavior of objects by encapsulating data as instance variables and functions as methods. Objects are created from classes and use methods to communicate.
3) Instance variables store data within each object, while methods define operations or actions. Classes can contain constructors to initialize objects, overloaded methods with the same name but different parameters, and static members accessed without object creation.
The document discusses the C++ Standard Template Library (STL). It provides three main components - containers, algorithms, and iterators. Containers like vectors, lists, and maps store and organize data. Algorithms like sort, search act on the containers. Iterators are generalized pointers that interface between containers and algorithms. The STL achieves efficiency through templates and provides commonly used data structures and algorithms out of the box.
In this second tutorial, I walk you through the two different data types in Java: Primitive and Reference. Then, I mention type casting and explain implicit and explicit type casting. Lastly, I explain the Object concept and finish with an Object Oriented Programming example and a quiz question.
Check out rest of the Tutorials: https://berksoysal.blogspot.com/2016/06/java-se-tutorials-basics-exercises.html
The document discusses the key components of the Standard Template Library (STL) in C++, including containers, iterators, and algorithms. Containers store and organize data elements. Iterators provide a generalized pointer interface for traversing container elements. Algorithms operate on container elements using iterators to perform tasks like searching, sorting, and other manipulations without knowing details of the underlying container implementation.
The document discusses key concepts in object-oriented programming including classes, objects, data encapsulation, inheritance, and polymorphism. It defines a class as a blueprint for objects that describes their properties and behaviors. An object is an instance of a class. Classes contain data members and member functions. Data hiding is achieved through declaring data members as private while member functions can be public or private. The document also discusses constructors, destructors, operator overloading, inheritance and polymorphism.
Java was created in 1991 by James Gosling, Mike Sheridan, and Patrick Naughton at Sun Microsystems. It has three editions: Java ME for limited devices, Java SE as the core platform for desktops and servers, and Java EE for large enterprise applications. Java code is compiled into bytecode that runs on a Java Virtual Machine (JVM) making Java portable across platforms. Key principles of Java include being object-oriented, secure, and platform independent.
Java is an object-oriented programming language originally developed by Sun Microsystems. There are four main types of Java applications: standalone, web, enterprise, and mobile. The key features of Java include being platform independent, secure, robust, and distributed. Java code is compiled into bytecode that runs on a Java Virtual Machine (JVM) on any device. The JVM performs tasks like loading code, memory management, and execution. There are various data types in Java including primitives like int and double, and reference types like classes. Variables are used to store and reference values in memory and can be local, instance, or class variables. Arrays provide a way to store multiple values of the same type.
This document provides an overview of the Java programming language and environment. It discusses that Java is both a programming language and platform, and describes some of Java's key characteristics like being object-oriented, platform independent, secure, robust and high performance. It also outlines the different types of applications that can be created in Java, such as standalone, web, enterprise and mobile applications. The document concludes by explaining the basic steps to compile and run a simple Java program, and some modifications that can be made to the main method.
Java-1st.pptx about Java technology before oopsbuvanabala
The document provides an overview of Java programming concepts including:
- What a computer program is and how it is executed by a computer.
- Key differences between Java and other technologies such as its cross-platform capabilities and memory management.
- The basic steps to compile and execute a Java program from the command line.
- Important concepts like case sensitivity, naming conventions, and the main method that is required for all Java programs.
- The different phases a Java program goes through and key components like the JVM, JRE, and JDK.
- Java features like portability, security, and multi-threading capabilities.
- Java's primitive data types and type casting between
This document provides an overview of object-oriented programming concepts in Java. It discusses what software and programs are, and describes different programming languages including machine language, assembly language, and high-level languages like Java. It then covers object-oriented programming concepts like classes, objects, encapsulation, inheritance, polymorphism, and dynamic binding. The document also discusses the history and development of the Java programming language, its key features like being simple, secure, portable, and its uses in applications.
This document provides an overview of Java programming concepts including:
- Java is an object-oriented programming language that allows writing programs as console applications or applets.
- It discusses Java features like being simple, object-oriented, robust, secure, portable, and supports multithreading.
- Key Java concepts covered are data types, keywords, classes, objects, inheritance, polymorphism and exceptions.
- It also discusses the Java virtual machine architecture, class files, and the basic structure of a Java program.
Java is a widely used programming language that is platform independent and object-oriented. It uses a virtual machine to execute bytecode, allowing programs written in Java to run on any system with a Java runtime. The key features of Java include being simple, secure, robust, portable, and having strong support for object-oriented programming concepts like classes, objects, inheritance, and interfaces. Variables in Java are declared with a specific data type and can be initialized dynamically by passing values to a class constructor at runtime.
This document provides an overview of core Java basics. It discusses:
- The origins and evolution of Java from its initial release in 1995 to current versions.
- Key characteristics of Java including being object-oriented, platform independent, simple, robust, and distributed.
- The Java environment setup and basic syntax including classes, objects, and methods.
- A simple "Hello World" example Java program.
- Explanations of primitive data types in Java like int, float, boolean and others.
- An overview of object-oriented programming concepts in Java like abstraction, encapsulation, inheritance and polymorphism.
This document provides an overview of core Java basics. It discusses:
- The origins and evolution of Java from its initial release in 1995 to current versions.
- Key characteristics of Java including being object-oriented, platform independent, simple, robust, and distributed.
- The Java environment setup and basic syntax including classes, objects, and methods.
- A simple "Hello World" example Java program.
- Primitive data types in Java like int, float, boolean and how they differ.
- Object-oriented programming concepts in Java such as abstraction, encapsulation, inheritance and polymorphism.
The document provides an overview of core Java basics. It discusses that Java was originally developed by Sun Microsystems and the latest release is Java SE 8. It also explains that Java is object-oriented, platform independent, simple, architecture neutral, portable, robust, multithreaded, interpreted and distributed. The document then discusses Java environment setup, basic syntax including classes, objects and methods. It also covers primitive data types, constructors, OOP concepts like abstraction, encapsulation, inheritance and polymorphism.
An object is an instance of a class that encapsulates state and behavior. A class defines the common attributes and behaviors of objects. Instance variables store the state of an object, and methods define the behaviors. Methods allow classes to hide implementation details and promote code reuse through polymorphism.
java for hadoop from #easylearning guru ,we provide online class for hadoop and witch will required knowledge of java ,so we provide java training class for student
Java is an object-oriented programming language that can be used to create complete applications. It is simple, secure, platform independent and follows the principle of "write once, run anywhere". The key components of Java are the JDK, JRE, and JVM. Java source code is compiled to bytecode, which is then executed by the JVM. Java supports basic data types as well as object-oriented features like classes, objects, inheritance and polymorphism. Common constructs in Java include if/else statements, loops, methods, and arrays. Objects are created using the new keyword and referencing a class.
The document provides an introduction to Java programming concepts including an overview of the Java platform, setting up a development environment, writing a first Java application, Java language elements, object-oriented programming concepts, and more. Key topics covered include the history and principles of Java, how to set up Eclipse, writing and running a "Hello World" program, Java syntax like variables and control structures, object-oriented concepts like classes and inheritance, and Java APIs and tools.
Java is a high-level programming language and platform developed by James Gosling at Sun Microsystems in 1991. It is designed to be platform independent, meaning that code written in Java can run on any device where a suitable runtime environment exists without modification. The key components that enable platform independence are the Java Virtual Machine (JVM) and the Java Runtime Environment (JRE). The JVM converts Java bytecode into machine code that can be executed by specific CPUs or hardware platforms. The JRE provides the minimum requirements for executing Java applications and includes the JVM, class libraries, and other supporting files.
The document provides an overview of object-oriented programming in Java. It discusses that Java was created to be portable and platform independent due to issues with C/C++. It then covers the history and evolutions of Java, the different Java editions, and defines Java as a general-purpose, object-oriented language. The document compares Java to C/C++ by outlining features removed or added in Java. It also describes characteristics of Java like being simple, robust, secure, portable, and platform independent. Finally, it discusses the Java environment, an example Hello World program, input/output in Java, and primitive data types.
Java is a widely used programming language that is mainly used for application programming. It is platform-independent and supports features like multi-threading and documentation comments. The key aspects of a simple Java program are that it must contain a class with a main method that can be the starting point of execution. The main method has a specific signature of public static void main(String[] args). When a Java program is run, the JVM (Java Virtual Machine) loads and executes the program by performing operations like loading code, verifying code, and providing a runtime environment.
Java is an object-oriented programming language that is derived from C and C++. It can be used to create a variety of applications including standalone applications, web applications, enterprise applications, and mobile applications. Java programs are compiled to bytecode that can run on any Java Virtual Machine, making Java platform independent. Key features of Java include being simple, object-oriented, platform independent, secure, robust, and multi-threaded. The basic structure of a Java program includes classes that contain methods. Methods can be overloaded by changing their parameters.
OCS Training Institute is pleased to co-operate with
a Global provider of Rig Inspection/Audits,
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Drilling Rig Inspec-tion Workshops (RIW) which
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learn to implement the relevant standards &
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An Internet Protocol address (IP address) is a logical numeric address that is assigned to every single computer, printer, switch, router, tablets, smartphones or any other device that is part of a TCP/IP-based network.
Types of IP address-
Dynamic means "constantly changing “ .dynamic IP addresses aren't more powerful, but they can change.
Static means staying the same. Static. Stand. Stable. Yes, static IP addresses don't change.
Most IP addresses assigned today by Internet Service Providers are dynamic IP addresses. It's more cost effective for the ISP and you.
Literature Reivew of Student Center DesignPriyankaKarn3
It was back in 2020, during the COVID-19 lockdown Period when we were introduced to an Online learning system and had to carry out our Design studio work. The students of the Institute of Engineering, Purwanchal Campus, Dharan did the literature study and research. The team was of Prakash Roka Magar, Priyanka Karn (me), Riwaz Upreti, Sandip Seth, and Ujjwal Dev from the Department of Architecture. It was just a scratch draft made out of the initial phase of study just after the topic was introduced. It was one of the best teams I had worked with, shared lots of memories, and learned a lot.
A brief introduction to quadcopter (drone) working. It provides an overview of flight stability, dynamics, general control system block diagram, and the electronic hardware.
Software Engineering and Project Management - Introduction to Project ManagementPrakhyath Rai
Introduction to Project Management: Introduction, Project and Importance of Project Management, Contract Management, Activities Covered by Software Project Management, Plans, Methods and Methodologies, some ways of categorizing Software Projects, Stakeholders, Setting Objectives, Business Case, Project Success and Failure, Management and Management Control, Project Management life cycle, Traditional versus Modern Project Management Practices.
1. INTRODUCTION ON JAVA PROGRAMMING
MS. K.NANTHINI
ASSISTANT PROFESSOR,
KONGU ENGINEERING COLLEGE,
ERODE, TAMILNADU,
2. Overview
-Programming language and computing platform
-first released by Sun Microsystems in 1995
-Java is a simple, general-purpose, object-oriented, robust, secure, architecture-neutral,
portable, high-performance, multithreaded computer language
-JDK
-JRE
-JVM
write once, run anywhere" (WORA)
3. History
-James Gosling from Sun Microsystems and his team began designing the first version of Java
aimed at programming home appliances
-Name:Oak-Green-Java
4. Java Platform
A platform is the hardware or software environment in
which a program runs.
Popular Platforms : Microsoft Windows, Linux, Solaris OS,
and Mac OS - combination of the operating system and
underlying hardware
But Java is software-only platform that runs on top of other
hardware-based platforms
-Components
7. Components of Java Architecture
Java Virtual Machine:
The JVM is a Java platform component that provides an environment for executing Java
programs. JVM interprets the byte code into machine code which is executed in the machine in
which the Java program runs.
Java Runtime Environment:
The JRE software builds a runtime environment in which Java programs can be executed. The JRE
is the on-disk system that takes your Java code, combines it with the needed libraries, and starts
the JVM to execute it. The JRE contains libraries and software needed by your Java programs to
run
Java Development Kit:
The Java Development Kit (JDK) is a software development environment used to develop Java
applications and applets
9. (Cont.,)
Class Loader: Class loader is a subsystem of JVM. It is used to load class files. Whenever we run
the java program, class loader loads it first.
Class method area: It is one of the Data Area in JVM, in which Class data will be stored. Static
Variables, Static Blocks, Static Methods, Instance Methods are stored in this area.
Heap: A heap is created when the JVM starts up. It may increase or decrease in size while the
application runs.
Stack: JVM stack is known as a thread stack. It is a data area in the JVM memory which is
created for a single execution thread. The JVM stack of a thread is used by the thread to store
various elements i.e.; local variables, partial results, and data for calling method and returns.
10. (Cont.,)
Native stack: It subsumes all the native methods used in your application.
Execution Engine:
JIT compiler
Garbage collector
JIT compiler: The Just in Time is a part of the runtime environment. It helps in improving the
performance of Java applications by compiling bytecodes to machine code at run time. The JIT
compiler is enabled by default. When a method is compiled, the JVM calls the compiled code of that
method directly. The JIT compiler compiles the bytecode of that method into machine code,
compiling it “just in time” to run.
Garbage collector: As the name explains that Garbage Collector means to collect the unused
material. Well, in JVM this work is done by Garbage collection. It tracks each and every object
available in the JVM heap space and removes unwanted ones.
11. Types of Java Applications
-Application Programs
-Applet Programs
12. Features
- Simple, Object Oriented, and Familiar
- Robust and Secure
- Architecture Neutral and Portable
- High Performance
- Interpreted, Threaded, and Dynamic
13. Drawbacks
- Slow performance
- Automatic memory management
- Different JVM for different platform
- No support for low-level programming
- Poor features in GUI
14. Setting Java
- Download the latest version of JDK (Java Development Kit) on your machine
- set environment variable to point to correct installation directory
- An Environment variable is an object on a computer that stores a value(key-value pair), which
can be referenced by one or more software programs in Windows
- Path and Class Path :
PATH is an environment variable which is used to locate JDK binaries like "java" or "javac"
command used to run java program and compile java source file.
CLASSPATH environment variable is used by System or Application ClassLoader to locate and
load compile Java bytecodes stored in .class file
16. Stucture of Java Program
Documentation Section
Package Statement
Import Statements
Interface Statement
Class Definition
Main Method Class
Main Method Definition
18. Points to remember
You have to keep in mind that,
Java code is case sensitive
To write a Java program, you must have to define class first
The name of the class in Java (which holds the main method) is the name of the Java program,
and the same name will be given in the filename
19. Program Explanation
public class Hello The public word means that it is accessible from any other classes.
/* Comments */ The compiler ignores comment block.
Braces Two curly brackets {...} are used to group all the commands, so it is known that the commands
belong to that class or method.
public static void main •When the main method is declared public, it means that it can also be used by code outside
of its class, due to which the main method is declared public.
•The word static used when we want to access a method without creating its object, as we
call the main method, before creating any class objects.
•main is a method; this is a starting point of a Java program.
String[] args It is an array where each element of it is a string, which has been named as "args". If your Java
program is run through the console, you can pass the input parameter, and main() method
takes it as input.
System.out.println(); This statement is used to print text on the screen as output. All Java statement ends with a
semicolon.
20. Java Data Types
Tells the compiler what type of variable it as and what type of data it is going to store.
- Data type specifies the size and type of values.
Primary Data Type
Java supports eight primitive data types: byte, short, int, long, float, double, char and boolean.
These eight data types are classified into four groups:
◦ Integer,
◦ Relational Numbers(Floating point)
◦ Characters
◦ Boolean(Conditional).
Non-Primitive Data Types
Classes,Interface, Arrays etc.
21. (Cont.,)
Type Contains Default Size Range
byte Signed integer 0 8 bit or
1 byte
-27 to 27-1 or
-128 to 127
short Signed integer 0 16 bit or
2 bytes
-215 to 215-1 or
-32,768 to 32767
int Signed integer 0 32 bit or
4 bytes
-231 to 231-1 or
-2147,483,648 to
2147,483,647
long Signed integer 0 64 bit or
8 bytes
-263 to 263-1 or
-
9223,372,036,854,755,8
08 to
9223,372,036,854,755,8
07
22. (Cont.,)
Type Contains Default Size Range
float IEEE 754 floating
point
single-precision
0.0f 32 bit or
4 bytes
±1.4E-45 to
±3.40282347E+38
F
double IEEE 754 floating
point
double-precision
0.0 64 bit or
8 bytes
±439E-324 to
±1.797693134862
3157E+308
23. (Contd.,)
Type Contains Default Size Range
char Unicode character
unsigned
u0000 16 bits or
2 bytes
0 to 216-1 or
u0000 to uFFFF
Type Contains Default Size Range
boolean true or false false 1 bit true or false
24. Java Variables
1. Declaration - eg. int width, height=5;
2. Initialization - static and dynamic initialization
3. Rules of Declaring variables
4. Scope of Variables - limit, as far as the variable can be used
5. Local variables - A variable that is declared within the method
6. Instance variables - A non-static variable that is declared within the class
7. Class/Static variables - A variable that is declared with static keyword in a class