When is the best time to validate input?
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What happens when a thread cannot acquire a lock on an object?
What is Stream Tokenizer?
Difference between new operator and class.forname().newinstance()?
difference between applicationserver and webserver
Why doesn’t the focus feature on the tag work in every circumstance?
What are the design considerations while making a choice between using interface and abstract class?
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?
Which textcomponent method is used to set a textcomponent to the read-only state?
Tell me about Firewalls in RMI?
whats is statement and procedure
Different between Struts and Spring? or Why use Spring, if you are already using Struts?
Define prototype?