Java Programming

Introduction to Java

Thinks to know;

  • Most popular language

  • Java are object oriented language,

  • It was created in 1991, and publicly released in 1995

  • Developed by James Gosling at Sun Microsystems

  • Java was later acquired by Oracle

  • Simple and Easy to use

  • Write Once and Run anywhere

  • tt

  • tt

  • tttt

  • tt

Usage

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What is use for

  • Web Development

  • Desktop Development

  • Mobile Development

  • Game Development

  • Databases

  • Distributed Processing

Features of Java

Strong Type-cheking

Multi-Tthreading

Compile & interpret

Garbage Collector

How a Java Program is Run

  1. Java Program

  2. Java Compiler

  3. Bytecode

  4. Windows, Linux, MacOS

Anatomy of Java

  1. JDK (IDE for Java)

  2. JRE

  3. JVM, Class Libraries, Other Libraries

Primitive datatypes in Java

Java some primitive datatype.

Some of them store: Number, Briliance Value, Characters

The data type thyat store Number are;

  • byte

  • short

  • int

  • long

  • flaot

  • double

  • ttt

They are basically use to store any kind for Numeric Value

  • byte is the shortest possible data type value

  • byte, short, int and long are use for storing integer value

  • flaot and double are usually use which as decimal

  • flaot can store a smill possitions value and double bigger

boolean are the true or false value

char are use to storing characters

Non-Primitive Datatype

When we used non-primitive we talk aboutttttt