Is void a wrapper class?
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Why can't we override private static methods?
What is 32 bit float?
real time example for deadlock,starvation,livelock
what is the difference between the "protected and default" modifiers?
Can we clone singleton object in java?
Why do we need data serialization?
What is the use of toarray () in java?
What is mutable object and immutable object?
Can we convert integer to string in java?
What does substring mean?
Is space a char?
how can you retrive information from database by using hashmap/arraylist ,plz explain with example briefly?