Conceptually, Java is two things: the Java platform (runtime and APIs) and Java. The goal of the Java platform to support applications written in Java and compiled into Java bytecode. Although there are attempts, other languages into Java bytecodes are compiled, they have been largely academic exercises. The ideal of Java has always been a single language on multiple platforms.
. NET is two things. NET Framework (runtime and APIs), and many programming languages. The purpose of the NET Framework for applications written in any language and compiled into MSIL support. The goal. NET is a single platform shared by multiple languages. This is the main difference between the two platforms, and their impact is considerable
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