Java (programming language)

 Java is the object-oriented programming language, similar to C++ high-level programming language and architecture neutral developed by Sun Microsystems in 1995 and later acquired by Oracle Corporation. Java was originally called OAK. Java is a computing platform for application development. Object-Oriented meaning the capability to reuse code. Secondly, it is platform independent, i.e., we don’t have to develop separate applications for different platforms. It is possible to develop a single application which can run on multiple platforms like Windows, UNIX, and Macintosh systems. Java designed for hand-held devices and set-top boxes.

Source code (files with a .java extension) of the Java program is converted to Bytecode  (files with a .class extension) by the java Compiler which in turn is converted to machine code by java Interpreter.Java interpreters and runtime environments, known as Java Virtual Machines (VMs). Bytecode can also be converted directly into machine language instructions by a just-in-time compiler (JIT).

Java does not support the use of pointers. It automatically manages memory garbage-collection routine activated when the system runs short of memory. Java provides the most secure programming environment. Java doesn’t just fix security loopholes-it eliminates them, which makes Java the perfect language for programming on the Web.

What is Java Platform?

Java platform is a computing platform from Oracle that helps to run and develop Java applications. The Java platform consists of an execution engine, a compiler, and a set of libraries. It is platform independent, i.e., we don’t have to develop separate applications for different platforms.

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