Introduction to Java

What’s Java?

Java is simply an object oriented multi-threaded programming language. It’s a platform for application development. A platform is the hardware or software environment in which your program runs. Java is a software-only platform that run on hardware-based platforms.

Java Environment:

  1. Cross –platform portability

Java support cross –platform portability via JVM. JVM is an abstract computing machine, having an instruction set and memory.

  1. Platform-independent

Java compiler translates java program into an intermediate language called Java byte codes and puts them into a .class file. Java byte code is similar to machine language, but exactly the same on every platform. Thus Java solves the problem of platform-independence by using Java byte codes.

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