InterviewDot Com - A Job Portal One Click Dream Job - interviewdot/upload-resume/uploadresume.htm Top 20 Java Interview Questions and Answers : 1. What is the difference between C++ and Java ? 2. Why Java is Platform Independent ? [i.e Write once and Run anywhere ] 3. Is Java Object Oriented Programming Language ? How ? 4. What is JVM ? 5. What is Java ByteCode ? 6. What is the difference between "Abstract class" and "Interface" ? 7. What is use of "Garbage collector in Java" ? Explain ? 8. What is the benefit of "finalize" method ? 9. What are the difference type of "Collections" available in Java ? When to use what ? 10.What is the difference between "Comparator" and "Comparable" Interface ? 11.Why "Strings" are immutable ? what is the advantage ? 12.Is Java ,"Pass-by-Value" or "Pass-by-Reference" ? 13.Explain "static" keyword ? Difference between instance variables / methods and static variables / methods ? 14.Explain "Exception" in Java ? 15.What is the use of "finally" block in Java ? Explain ? 16.What is "serialization" ? How it is done in Java ? 17.What is "transient" variable ? 18.Explain polymorphism ,encapsulation ,inheritance in Java ? 19.What is the difference between "StringBuffer" and "StringBuilder" ? 20.Explain "Class loading" in Java ?
Posted on: Mon, 22 Jul 2013 05:13:03 +0000
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