What is operator overloading. Is it is supported in java?
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What is an interface in java? Explain
when everything can be done by static block then why do we use main method?.
Why static functions are used?
What is java util hashmap?
What is casting ?
what do you mean by marker interface in java?
How do you insert a line break?
What is an Iterator interface?
What is class level lock ?
What is difference between hash mapping and hash table?
Tell us something about different types of casting?
What is better - 'bit-shift a value' or 'multiply by 2'?