What are basic keywords?
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Can we use different return types for methods when overridden?
What will happen to the exception object after exception handling?
What is meant by nested loop?
Is null a string?
What is meant by class loader? How many types are there? When will we use them?
what is comparable and comparator interface?
When to use runnable interface vs thread class in java?
How do constructors use this() and super()?
Give differences between Quicksort &Mergesort. When should these sorts be used andwhat is their running time in java?
what is marker interface ? what is the necessity of it?
What are interfaces?
How can we pass argument to a function by reference instead of pass by value?