Why do we need singleton class?
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Is array size fixed in java?
What are the 4 types of research methods?
Does java vector allow null?
When should a function throw an exception?
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How to synchonise HashMap
What is deserialization?
Does string isempty check for null?
Can we restart a dead thread in java?
How does a try statement determine which catch clause should be used to handle an exception?
What is unsigned char?
Can we call the constructor of a class more than once for an object?
can two class in a code be public??if yes then how??