方法一、使用join方法處理

package com.cyc.redis.singleton;

public class JoinExample {
    public static void main(String[] args) {
        Thread t1 = new Thread(new Runnable() {
            @Override
            public void run() {
                System.out.println("T1");

            }
        });
        Thread t2 = new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    t1.join();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                System.out.println("T2");
            }
        });
        Thread t3 = new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    t2.join();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                System.out.println("T3");
            }
        });
        t2.start();
        t1.start();
        t3.start();

    }
}
 

方法二、使用Yield結合setPriority

package com.cyc.redis.singleton;

import com.sun.corba.se.impl.orb.ParserTable;
import lombok.extern.slf4j.Slf4j;


public class YieldExcample {
    public static void main(String[] args) {
        Thread t1 = new T1();
        Thread t2 = new T2();

        t1.setPriority(Thread.MIN_PRIORITY); //Min Priority
        t2.setPriority(Thread.MAX_PRIORITY); //Max Priority

        t1.start();
        t2.start();
    }
}

@Slf4j
class T1 extends Thread {
    public void run() {
        for (int i = 0; i < 5; i++) {
            log.info("{}",  i);
            Thread.yield();
        }
    }
}

@Slf4j
class T2 extends Thread {
    public void run() {
        for (int i = 0; i < 5; i++) {
            log.info("{}", i);
            Thread.yield();
        }
    }
}

@Slf4j
class T3 extends Thread {
    public void run() {
        for (int i = 0; i < 5; i++) {
            log.info("{}",i);
            Thread.yield();
        }
    }
}