JAVA 线程状态演示

package cn.yds.juc.learning;

import lombok.extern.slf4j.Slf4j;

/**
 * @author yds
 * @Date 2022/9/26 15:54
 * @Description ThreadDemo6
 * @Version 1.0.0
 */
@Slf4j
public class ThreadStatusDemo {
    public static void main(String[] args) throws InterruptedException {
        //------>NEW
        Thread t1 = new Thread(() -> {

        }, "t1");

        //------>RUNNABLE
        Thread t2 = new Thread(() -> {
            //死循环，一直在运行
            while (true) {
            }
        }, "t2");
        t2.start();

        //------>TERMINATED
        Thread t3 = new Thread(() -> {

        }, "t3");
        t3.start();

        //------>TIMED_WAITING
        Thread t4 = new Thread(() -> {
            synchronized (ThreadStatusDemo.class) {
                try {
                    Thread.sleep(100000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }

        }, "t4");
        t4.start();

        //------>WAITING
        Thread t5 = new Thread(() -> {
            try {
                //T2是死循环，一直等待
                t2.join();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }, "t5");
        t5.start();

        //------>BLOCKED
        Thread t6 = new Thread(() -> {
            //此处t4先拿到了锁，t6拿不到锁，陷入阻塞
            synchronized (ThreadStatusDemo.class) {
                try {
                    Thread.sleep(100000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }

        }, "t6");
        t6.start();
        
        Thread.sleep(1000);
        log.debug("线程：{}，status：{}", t1.getName(), t1.getState());
        log.debug("线程：{}，status：{}", t2.getName(), t2.getState());
        log.debug("线程：{}，status：{}", t3.getName(), t3.getState());
        log.debug("线程：{}，status：{}", t4.getName(), t4.getState());
        log.debug("线程：{}，status：{}", t5.getName(), t5.getState());
        log.debug("线程：{}，status：{}", t6.getName(), t6.getState());
    }
}

执行结果:

11:03:52.265 [main] DEBUG cn.yds.juc.learning.ThreadStatusDemo - 线程：t1，status：NEW
11:03:52.279 [main] DEBUG cn.yds.juc.learning.ThreadStatusDemo - 线程：t2，status：RUNNABLE
11:03:52.279 [main] DEBUG cn.yds.juc.learning.ThreadStatusDemo - 线程：t3，status：TERMINATED
11:03:52.279 [main] DEBUG cn.yds.juc.learning.ThreadStatusDemo - 线程：t4，status：TIMED_WAITING
11:03:52.279 [main] DEBUG cn.yds.juc.learning.ThreadStatusDemo - 线程：t5，status：WAITING
11:03:52.280 [main] DEBUG cn.yds.juc.learning.ThreadStatusDemo - 线程：t6，status：BLOCKED