What is JAVA ?


Java Technology is both a Programming Language and a Platform.

Java - As a Programming Language
  • The Java Programming Language is a gigh-level, object-oriented and general purpose computer programming language
  • Java is similiar to C++, but simplified to eliminate language features that cause common programming errors.
  • You can use Java to write computer applications that play games, store data or do any of the thousands of other things computer software can do.
  • It is intended to let application developers "Wrote once, run anywhere" (WORA), meaning that compiled Java code can run on all platforms that support Java without the need for recompilation.
Java - As Computing Platform
  • A platform is the hardware or software environment in which a program runs. Some of the most popular platforms are Microsoft Windows, Linux, Solaris OS, and Mac OS.
  • Since Java has its own runtime environment(JRE) and API, it is called a platform.
  • There are lots of applications and websites that will not work unless you have Java installed, and more are created every day.
  • From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the internet, Java is Every here.
Where is Java used ?
According to Sun, 3 Billion devices run Java. There are many devices where Java is currently used. Some of them are as follows:
  • Desktop Applications such as acrobat reader, media player, antivirus, etc..
  • Web Applications such as irctc.co.in, Javatpoint.com, etc...
  • Enterprise Applications such as banking applications.
  • Mobile
  • Embedded System
  • Smart Card
  • Robotics
  • Games, Etc...
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