Synchronization In Java

Ex :

            synchronized(threadobj)

            {        

                        threadobj.start();

            }

            * A method wants to allow only one thread at a time to execute,

then that should be declared as synchronized method or that should be called within synchronized block.

            * When a thread enters into synchronized method, it is locked and monitored.

Meanwhile, other threads are waiting for sometime until it terminates.

            * It is used to achieve InterThread Communication.

 (Output of one thread is used as input by another thread.)

            * It is used to avoid DeadLock prone.