What are callback interfaces?
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How to implement RMI in Java?
if i know the lenght of collection in hand, should I use Array or Arraylist? justify
What are the states associated in the thread?
what is the RMI / IIOP?
1) Scenario: I developed my application on local system and everything is perfect and tested. Now on UAT this application is deployed on clustered server environment. They are logical or physically clustered. But application is not working over there.  What is the issue with application?  What are the first things which come in your mind?
In a multitiered application which tier is the browser in?
Why a client should be multithreading? Explain.
whats is mean by class.forName() whats the return type of class
What invokes a thread?s run() method?
What is Servlet Filter And What does it work?
Why is actionform a base class rather than an interface?
What is the purpose of the wait() method?