java多线程（2）连续重启一个线程报错

package com.javaconcurrencyprogramming.chapter1;

import java.util.concurrent.TimeUnit;

/**
 * @description: 一个线程不能重复启动
 * @author: 
 * @create: 
 **/

public class RestartThreadError {

    public static void main(String[] args) {

        Thread thread = new Thread(){

            public void run(){
                try {
                    TimeUnit.SECONDS.sleep(10);

                }catch (InterruptedException e){
                    e.printStackTrace();
                }
            }
        };

        thread.start();//启动线程

        thread.start();//重启线程报IllegalThreadStateException异常
    }


}



//重新激活一个线程报IllegalThreadStateException

package com.javaconcurrencyprogramming.chapter1;

import java.util.concurrent.TimeUnit;

/**
 * @description: 一个线程不能重复启动
 * @author: 
 * @create: 
 **/

public class RestartThreadError {

    public static void main(String[] args) throws InterruptedException {

        Thread thread = new Thread(){

            public void run(){
                try {
                    TimeUnit.SECONDS.sleep(1);

                }catch (InterruptedException e){
                    e.printStackTrace();
                }
            }
        };

        thread.start();

        TimeUnit.SECONDS.sleep(4);

        thread.start();//重启线程报IllegalThreadStateException异常
    }


}