How substring() method of string class create memory leaks?
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advantage of thread?
What are JTA/JTS and how they used by client?
For an example, if we have some variable in run method, and we created one or more threads. Does all threads will share the same variable or a copy of variable is created for each thread??
Do we need to override service() method
What is table mutation and how do you avoid it?
diff vector arraylist
What is the immediate superclass of the applet class?
i have a 1000 objects in data base i need to display those in jsp's how can i retrive those objects in jsp. (consider the performance issue)
what is JTS?
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?
Is it possible to stop the execution of a method before completion in a sessionbean?