What is serializable interface?
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Why do we need to override equals() and hascode() method of object class?
When garbage collector invokes object?s finalize() method?
Why do we override tostring method in java?
what is a transient variable?
Is a copy constructor?
Can a method be overloaded based on different return type but same argument type?
What is an array and a vector? How they different from each other?
Why do we need autoboxing in java?
Can we use static class instead of singleton?
What is mean by exception?
What about anonymous inner classes in java?
What primitive Java types? Howmany are they and what are their names?