Can we pass null as argument in java?
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Explain about interthread communication and how it takes place in java?
why abstract class does not have object creation
what is the difference b/w static and final methods?
Can list be final in java?
What is class forname?
Define a package.
Can we cast any other type to boolean type with type casting?
What is hashmap in java?
What are the different tags provided in jstl?
When should I use abstract classes and when should I use interfaces?
Who found java?
what is main purpose of abstract class?