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Q) explain about Active state in thread life cycle?



A)
->when start() method is called on the thread object it is in new state, it transits (i.e. moves from) from new state to active state.
->when a thread is active state it competes for CPU cycles as body is associated with the thread in this state.
->when multiple threads are activated all are said to be in runnable state and CPU cycles are allocated exactly to which thread, at that instance of time that thread is said to be in running state.

Ex:
 A t1 = new A ();
 A t2 = new A ();

t1.start ();
t2.start ();
->so, these t1,t2 are in active state. i.e. linking the body of thread (i.e. run ()) to the thread.
->so, they are in running state. I.e. they are ready for CPU allocation.
->when that Threads in Runnable state they are in ready queue according to the priority base threads are allocating the CPU time slicing to the threads.
->when thread is allocating CPU time then that Thread is in running state.

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