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Java Interview Guide

  • If I don't provide any arguments on the command line, then the String array of Main method will be empty or null?
  • Is delete,next,main,exit or null keyword in java?
  • What is difference between JDK,JRE and JVM?
  • How many types of memory areas are allocated by JVM?
  • What is JIT compiler?
  • What is platform?
  • What is the main difference between Java platform and other platforms?
  • What gives Java its 'write once and run anywhere' nature?
  • What is classloader?
  • Is Empty .java file name a valid source file name?
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  • What are the important features of Java 8 release? ...
  • What do you mean by platform independence of Java? ...
  • What is JVM and is it platform independent? ...
  • What is the difference between JDK and JVM? ...
  • What is the difference between JVM and JRE? ...
  • Which class is the superclass of all classes?
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