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Asked by Sudhakar sahu Last Modified
Answer 
Java was created by James Gosling. And today Java became next widely used language for application development because of its platform independant nature.
What does platform independancy means?
It means your code will work on any machine i.e. any combination of OS and processor.A few combinations that we see around are WinTel (Windows + Intel), LinTel (Linux + Intel), etc.
Java has a module called 'JVM' (java Vertual Machine). That interprits and compiles the java source code into an object code that can be used by the residing platform. Hence the source file is independant of the platform and object file is dependant on platform. The point to note here is that JVM is NOT platform independant.
If you have written a few LOC on windows and shift it to Mac, the code will be compiled by JVM of Mac and will be executed. If you have LOC on Mac and port it to windows it will be compiled by JVM of windows.
But if you port the object code from windows to Mac and vice-versa, code will not work.
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