Java Introduction

Java is a popular & high-level programming language originally developed by Sun Microsystems and released in 1995. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX.

It is owned by Oracle, and more than 5 billion systems / devices run Java. This tutorial gives a complete understanding of Java.

It is used for :

• Desktop applications
• Web applications
• Mobile applications
• Games
• Web servers and application servers
• Database connection

Why Use Java? :

• Java works on different platforms (Windows, Mac, Linux, Raspberry Pi, etc.)
• It is one of the most popular programming language in the world
• It is easy to learn and simple to use
• It is open-source and free
• It is secure, fast and powerful
• It has a huge community support (tens of millions of developers)
• Java is an object oriented language which gives a clear structure to programs and allows code to be reused, lowering development costs

Hello World using Java Programming:

  public class MyFirstJavaProgram {

   /* This is my first java program.
    * This will print 'Hello World' as the output
    */

   public static void main(String []args) {
      System.out.println("Hello World"); // prints Hello World
   }
}