package com.wuming.state;import org.omg.PortableInterceptor.SYSTEM_EXCEPTION;//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(1000);} catch (InterruptedException e) {e.printStackTrace();}}System.out.println("//");});//观察状态Thread.State state=thread.getState();System.out.println(state);//new//观察启动后thread.start();//启动线程state=thread.getState();System.out.println(state);//Runwhile(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}thread.start();//死亡的线程不能再次启动}
}

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
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
Exception in thread "main" java.lang.IllegalThreadStateException
    at java.lang.Thread.start(Thread.java:705)
    at com.wuming.state.TestState.main(TestState.java:31)