观察线程状态 10

package Runnable1;
//观察测试线程的状态
public class TestState
{
    public static void main(String[] args) throws InterruptedException {
        Thread thread=new Thread(()->{
            for (int i = 0; i < 5; i++)
            {
                try {
                    Thread.sleep(500);//因为睡眠500毫秒，所以在等待等待  TIMED_WAITING
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }
            System.out.println("///////");
        });
        //观察状态
        Thread.State state = thread.getState();
        System.out.println(state);//NEW  从这开始打印了NEW
​
        //观察启动后
        thread.start();//启动线程
        state= thread.getState();
        System.out.println(state);//Run  打印RUNNABLE
​
        while (state!= Thread.State.TERMINATED)//只要线程不终止，就一直输出状态
        {
            Thread.sleep(100);
            state=thread.getState();//更新线程状态
            System.out.println(state);//输出状态
        }
/*
  NEW
RUNNABLE
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
TIMED_WAITING
///////
TERMINATED
 */
    }
}
​

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