Sunday, 3 July 2016

Core Java MNC Interview Questions?

Core Java MNC Interview Questions?


  • which is the most widely used protocol on internet?
  • what is the difference between an executable file and a class file?
  • why java is suitable for internet?
  • why pointers are eliminated from java?
  • what is the diff b/w a function & a method?
  • Which part of JVM will allocate the memory for a java program?
  • How can you call the garbage collector?
  • What is mean by OOPS Concepts ?
  • What is abstraction, Encapsulation and Data-hiding ?
  • What is IS-A relationship, HAS-A relationship?
  • What is method overloading and overriding?
  • What is difference between string,string buffer and string builder ?
  • What are the disadvantages in arrays ?
  • Different types of collections ?
  • What are the difference between stack and array list ?
  • What is difference between hash set and tree set ?
  • When will you implement list and set ?
  • What is difference between hash table and hash map ?
  • What is difference between Error and Exception ?
  • What is difference between compile time exception and run time exception ?
  • Write a program for run-time exception ?
  • What is thread  and explain about thread life cycle ?


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