Why we used vector class?
What is Applet Stub Interface ?
Are private methods final?
What does nullpointerexception mean?
Why does the integer quotient -0/3 yield 0, but the double quotient -0.0/3.0 yields – 0.0?
Is stringwriter thread safe?
Why there are some null interface in java? What does it mean?
Objects or references which of them gets garbage collected?
What is the difference between yielding and sleeping?
Difference between final and effectively final ?
What does string [] args mean?
what happens when a thread cannot acquire a lock on an object? : Java thread
What is the use of using enum to declare a constant?
How large is a boolean?
What design pattern you have used in your project? I answered Factory pattern, how it is implemented? What are its advantage? Do know about Abstract Factory?