When does a class need a virtual destructor?
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How to implement a multithreaded applet?
How use .contains in java?
How many types of methods are there?
Explain Big-O notation with an example
How to call one constructor from the other constructor ?
Which is dependent variable?
How to synchonise HashMap
What package is math in java?
What is Gang of four design patterns
how to handle exceptions in ejb?
Write an algorithm program in java for the following question.. 1) S is a set of integers.X is an integer obtained by sum of two digits in S. Write logic for whether or not the X is from the S. The time of algorithm should not exceed o(n logn).
What is the difference between interface & abstract class?