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Java Tutorial

  1. Java - What, Where and Why?
  2. What is Java
  3. Where Java is used
  4. Java Applications

Java Tutorial or Core Java Tutorial or Java Programming Tutorial is a widely used robust technology. Let's start learning of java from basic questions like what is java tutorial, core java, where it is used, what type of applications are created in java and why use java.

What is Java

Java is a programming language and a platform.

Java is a high level, robust, secured and object-oriented programming language.

Platform: Any hardware or software environment in which a program runs, is known as a platform. Since Java has its own runtime environment (JRE) and API, it is called platform.

Java Example

Let's have a quick look at java programming example. A detailed description of hello java example is given in next page.


  1. class Simple{  
  2.     public static void main(String args[]){  
  3.      System.out.println("Hello Java");  
  4.     }  
  5. }  

Test it Now

Where it is used?

According to Sun, 3 billion devices run java. There are many devices where java is currently used. Some of them are as follows:

  1. Desktop Applications such as acrobat reader, media player, antivirus etc.
  2. Web Applications such as irctc.co.in, javatpoint.com etc.
  3. Enterprise Applications such as banking applications.
  4. Mobile
  5. Embedded System
  6. Smart Card
  7. Robotics
  8. Games etc.