JAVA / J2EE :-
Java is a programming language and computing platform first released by Sun Microsystems in 1995. It is the underlying Technology that powers state-of-the-art programs including utilities, games, and business applications. Java runs on more than 850 million personal computers worldwide, and on billions of devices worldwide, including mobile and TV devices.
There are lots of applications and websites that won't work unless you have Java installed, and more are created every day. Java is fast, secure, and reliable. From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the Internet, Java is everywhere! Java is free to download and use.
Java allows you to play online games, chat with people around the world, calculate your mortgage interest, and view images in 3D, just to name a few. It's also integral to the intranet applications and other e-business solutions that are the foundation of corporate computing Java is a language and J2ee is a platform which implements Java language.
J2EE is a platform-independent, Java-centric environment from Sun for developing, building and deploying  Web-based enterprise applications online. The J2EE platform consists of a set of services, APIs, and protocols that provide the functionality for developing multitier, Web-based applications.
Benefits of JAVA / J2EE
- Java today is driving more than $100 billion of business annually.
- Java mobile game market is estimated to be around $3 billion.
- Seven out of 10 wireless applications currently under constructions will use java Technology runtime environment.
- On the enterprise side, $2.2 billion in Java application server and $110 billion in related IT spending are happening.
- Today, globally over 4.5 million software developers work on Java. Along with that, 100 carrier deployments and 579 million phones are on this platform.
- • Around 750 million Java cards have been deployed globally.
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