Difference between method overloading and overriding.
How concurrent hashmap works?
How static variable work in java?
How do you use nextline in java?
Explain the concept of proper inheritance?
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Explain restrictions on using enum?
What is meant by 'bit masking' in java?
In which language java is written?
What is set string?
How do you ensure that n threads can access n resources without deadlock?
What happens to the Exception object after handling an exception?
Why is stringbuffer not immutable?
How to invoke external process in java.