What is a hashmap used for?
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is it possible to add a object in a HASHMAP
What is private static class in java?
What is return type in java?
how to create multithreaded program? Explain different ways of using thread? When a thread is created and started, what is its initial state? Or extending thread class or implementing runnable interface. Which is better? : Java thread
What is an argument in java?
Is it possible to declare abstract class as final?What happens if we do so?
What is composition in java?
Does google use java?
Does apple use java?
What is an Exception ?
What is variable declaration and definition?
What is the association?