Why we go for collections in java?
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What is isa relationship?
What is parameters example?
Why parameters should be passed by reference?
Is static a singleton?
There are 2 methods in a class. Both have the same method signature except for return types. Is this overloading or overriding or what is it?
Is int primitive data type?
What is adapter in java?
Why do we use threads in java?
What is difference between checked and unchecked exception in java?
What is the flag in java?
What is the purpose of void?
What is slash r?