Java is an object-oriented programming language (OOP). It is organized around data rather than actions. Java is used for both server and client processing. Java was released in 1995 by Sun Micro Systems. Java is very similar to the popular C++ programming language. They both are object-oriented programming, using similar syntax and general forms for commands. However, Java is more secure since it doesn’t support pointers, which hold the address of other variables. It emerged with more self-contained variables.