Java is a general purpose computer high- level programming language.It is class-based and object oriented language. Today java is a commonly used foundation for developing and delivering content on the web.It is intended to let application developers "write once, run anywhere" means that compiled Java code can run on all platforms that support Java without the need for recompilation. At present(2016) it is the most popular programming language.Java was originally developed by James Gosling at Sun Microsystems (which has since been acquired by Oracle Corporation) and released in 1995 as a core component of Sun Microsystems' Java platform.Java runs on various operating systems such as Windows UNIX Mac OS The most popular android OS, its applications are built with the use of java language.Java source code files are with .java extension and compiled into a format called bytecode .class extension.Java runs on its runtime environment called Java Virtual Machine(JVM).
Java is simple and familiar language
It must be robust, secure and portable
Java executes with high performance
Uses:
Desktop Applications and Web Application
Enterprise Applications such as banking applications.