How JAVA achieves platform independence?
5129 Since 25th November, 2003
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Java is platform independent because of the consistent data sizes at all the platforms on which Java code is run. The output of a Java compiler is not an executable code it is bytecode. bytecode is highly optimized set of instructions designed to be executed by a virtual machine that the Java run-time system emulates. As Java programs are interpreted, rather than compiled it is much easier to run them in a variety of run-time environments.