Thursday, February 7, 2013

Java Interview Questions

http://www.developersbook.com/corejava/interview-questions/corejava-interview-questions-faqs.php
http://www.allapplabs.com/interview_questions/java_interview_questions.htm

What is an Iterator?
What is an abstract class?
What is static in java?
What is final in java?
What are pass by reference and passby value?
What is HashMap and Map?
Difference between HashMap and HashTable?
Difference between Vector and ArrayList?
Explain different way of using thread?  
Describe synchronization in respect to multithreading.
How to simultaneously access to a Java synchronized block using threads?
What is the difference between a constructor and a method?
What is the difference between an Interface and an Abstract class?
Write the significance of public, private, protected, default modifiers both singly and in combination and state the effect of package relationships on declared items qualified by these modifiers. 
What is the purpose of garbage collection in Java, and when is it used? 
Difference between Swing and Awt?

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