Can main() method in java can return any data?
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Can subclass overriding method declare an exception if parent class method doesn't throw an exception?
How the elements are organized in GridBagLayout?
Can two objects have same hashcode?
what is predefined function in java?
Is vector thread safe in java?
what is servlet filter?
What is static variable with example?
What is Generic in java? Where can we write Generic ( class or method or objects or etc...)? with simple example? Thanks, Bose.
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Define reflection.
Which collection is thread safe in java?
Can we use catch statement for checked exceptions when there is no chance of raising exception in our code?
I need to know about complete topic in java's collections i with an examples