What is an immutable class?
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How to instantiate static nested classes in java?
why java uses class level type casting ?
Why we can not force Garbage Collection?
What is the basic functionality of DataOutput interface in java?
what is polymorphism?
What state is a thread in when it is executing?
What is the difference between array and array list in java?
Why map is used in java?
Why does it take so much time to access an applet having swing components the first time?
What does serializing data mean?
can we write program without class
What is prime number in java?