Five states of the thread family two thread

Threads have 5 states, namely new, blocked, run, dead, dormant, waiting.

The explanations in the API are shown in 1

Figure 1

Figure 2

Explain the process of Figure 2 above.

1, new a thread object with a state of new state.

2, execute Start (), if the CPU is now idle, then switch to the running state, otherwise switch to the blocking state.

3, Thread execution sleep (), switch to hibernation, after the sleep time expires, automatically switch to (run or block)

4. Execute wait (), switch to the wait state, or wait until notifiy () is executed.

5. The thread switches to the dead state after the run () is executed in the threads. The thread manually executes stop () and also switches directly to the death state.

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Five states of the thread family two thread