java控制多线程执行顺序

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package com.yihaomen.mybatis.inter;

import java.io.IOException;

public class TestThread {

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

final Test obj = new Test();

new Thread() {

public void run() {

obj.m1();

}

}.start();

new Thread() {

public void run() {

obj.m2();

}

}.start();

new Thread() {

public void run() {

obj.m3();

}

}.start();

}

}

class Test {

static int count;

volatile int target = 1;

synchronized void m1() {

for (int i = 0; i < 10; i++) {

while (target == 2 || target == 3) {

try {

wait();

} catch (InterruptedException e) {

e.printStackTrace();

}

}

System.out.println("m1() =" + i);

target = 2;

notifyAll();

}

}

synchronized void m2() {

for (int i = 0; i < 10; i++) {

while (target == 1 || target == 3) {

try {

wait();

} catch (InterruptedException e) {

e.printStackTrace();

}

}

System.out.println("m2() =" + i);

target = 3;

notifyAll();

}

}

synchronized void m3() {

for (int i = 0; i < 10; i++) {

while (target == 1 || target == 2) {

try {

wait();

} catch (InterruptedException e) {

e.printStackTrace();

}

}

System.out.println("m3() =" + i);

target = 1;

notifyAll();

}

}

}

输出结果：

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m1() =0

m2() =0

m3() =0

m1() =1

m2() =1

m3() =1

m1() =2

m2() =2

m3() =2

m1() =3

m2() =3

m3() =3

m1() =4

m2() =4

m3() =4

m1() =5

m2() =5

m3() =5

m1() =6

m2() =6

m3() =6

m1() =7

m2() =7

m3() =7

m1() =8

m2() =8

m3() =8

m1() =9

m2() =9

m3() =9

参考：http://www.blogjava.net/santicom/archive/2011/09/02/357783.html