admin管理员组

文章数量:1599543

好记性不如烂笔头,在此记下Reentrant与Condition配合使用的一般方法。

有三个线程tA、tB、tC,当i为1时线程tA打印,当i为2时线程B打印,当i为3时线程C打印,并且这三个线程遵循tA唤醒tB,tB唤醒tC,tC唤醒tA的规则。

package reentrantLockUsage;

import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

/**
 * 用ReentrantLock、condition实现三个线程的for循环交替打印
 */
public class Demo {
    Lock lock = new ReentrantLock();
    Condition conditionA = lock.newCondition();
    Condition conditionB = lock.newCondition();
    Condition conditionC = lock.newCondition();
    volatile int i = 1;//为1则线程tA打印,为2则线程tB打印,为3则线程C打印


      public void printA() {
            for (int i = 1; i <= 100; i++) {
                lock.lock();
                try {
                    while (Demo.this.i != 1) {
              

本文标签: 线程ReentrantLockcondition