How do you create a null object?
What is the main use of java?
Is empty set an element of empty set?
Why is boolean important?
What is class??
Can interface be private in java?
What is difference between stringbuffer and string?
Can we create an object of private class?
What are white spaces in java?
What is string buffer?
When should a function throw an exception?
What is byte [] in java?
Can a final variable be initialized in constructor?
What is java abstraction with example?
How can we make a class virtual?