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java as a platform

 
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how java language is justified as a platform???
 
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Interesting question ... Platform is probably not a solidly defined term. Does it mean the same thing to you as it did to Sun?

Java is more than the language. The "virtual machine" part of the JVM is a type of platform. You can take class files and run them into the Java platform to run. It's all the environment you need to run a Java program, and all the rules about what it does are defined by Java, independent of the operating system or hardware.

How useful is it to distinguish "Java: a programming language" from "Java: a platform" ?? Not something I worry about often but the way the JVM supports cross-platform portable code is an important part of the Java story.
 
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