What is the purpose of tostring() method in java?
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where do we use init()
Is array a class in java?
How do you override a method?
What is the preferred size of a component?
Why do we need hashset in java?
relation between list and linked list
In collection sorting comparable and comparator interface will be used..but why this two interfaces required..two will work same purpose so why there are two interfaces instead of one?when to use comparator and when to use comparable?
What are keyboard events?
What is the best definition for data?
What is return type in java?
Why pointers are not used in java?
What is a class reference?