Describe the life cycle of a thread in Java?

A thread goes through various stages in its lifecycle. For example, a thread is born, started, runs, and then dies. The following diagram shows the complete life cycle of a thread.

Following are the stages of the life cycle −

• New − A new thread begins its life cycle in the new state. It remains in this state until the program starts the thread. It is also referred to as a born thread.
•  Runnable − After a newly born thread is started, the thread becomes runnable. A thread in this state is considered to be executing its task.
•  Waiting − Sometimes, a thread transitions to the waiting state while the thread waits for another thread to perform a task. Thread transitions back to the runnable state only when another thread signals the waiting thread to continue executing.
•  Timed Waiting − A runnable thread can enter the timed waiting state for a specified interval of time. A thread in this state transitions back to the runnable state when that time interval expires or when the event it is waiting for occurs.
•  Terminated (Dead) − A runnable thread enters the terminated state when it completes its task or otherwise terminates.

Sharon Christine

Updated on 13-Mar-2020 05:09:31

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