Freshers India

The thread can come on this state because of waiting to acquire the lock of an object _________________.                        

In how many ways Thread can be implemented?                        

If you extend the Thread Class, that means that subclass cannot extend any other Class, but if you implement _________________ interface then you can do this.                        

The class implementing the _______________ interface can avoid the full overhead of Thread class which can be excessive.                        

____________________________ is used to represent a group of threads.                        

____________________________ can be shown in a hierarchical manner.