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Core Java Interview Questions and Answers

Ques 191. Is JVM a compiler or an interpreter?

Ans. Interpreter

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Ques 192. When you think about optimization, what is the best way to findout the time/memory consuming process?
Ans. Using profiler
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Ques 193. What is the purpose of assert keyword used in JDK1.4.x?
Ans. In order to validate certain expressions. It effectively replaces the if block and automatically throws the AssertionError on failure. This keyword should be used for the critical arguments. Meaning, without that the method does nothing.
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Ques 194. How will you get the platform dependent values like line separator, path separator, etc., ?
Ans. Using Sytem.getProperty(') (line.separator, path.separator, ')
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Ques 195. What is skeleton and stub? what is the purpose of those?
Ans. Stub is a client side representation of the server, which takes care of communicating with the remote server. Skeleton is the server side representation. But that is no more in use' it is deprecated long before in JDK.
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