How to convert string to byte array and vice versa?
Why vector class is used?
What is currentthread()?
what is the difference b/w static and final methods?
Which one will take more memory: an int or integer?
What is final method in java?
Why sleep()is in Thread and wait() in Object class? Why can't I have both in one class or vice versa?
can anyone explain me the concept of autoboxing?
Can we catch more than one exception in single catch block?
What is the benefit of inner classes in java?
how can you take care of mutual exclusion using java threads? : Java thread
Explain notifyall() method of object class ?
Implement a stack with push (), pop() and min() in O(1) time.