Is null an object in java?
What method is used to specify a container's layout in java programming?
Can array grow dynamically in java?
Why deletion in linkedlist is fast than arraylist?
what is different between static and non static methods ,using example
Is cout buffered?
What is join () in java?
what is meant by multicast?
Why we use static and synchronized in method for single thread model example: public static synchronized add(){}
Why do we need singleton class?
What is the meaning of immutable regarding string?
Is logger a singleton?
Can we force garbage collector to run ?