测试ReentrantLock使用的代码。学习自：http://outofmemory.cn/java/java.util.concurrent/lock-reentrantlock-condition

MyTest.java

package com.example.huangxingli.testreentrantlock;
import android.util.Log;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

/**
 * Created by huangxingli on 2015/5/18.
 */
public class MyTest {
    final Lock mLock=new ReentrantLock();
    Condition wait3Condition=mLock.newCondition();
    Condition wait6Condition=mLock.newCondition();
    int printNum=1;
    class Thread1 extends Thread{
        @Override
        public void run() {
            super.run();
            mLock.lock();
            while (printNum<=3){
                Log.v("TAG","---thread111-printNum is--"+printNum);
                printNum++;
            };
            wait3Condition.signal();
            try {

            mLock.unlock();
                mLock.lock();
                wait6Condition.await();
                while (printNum<=9){
                    Log.v("TAG","--thread11111==----printNum is---"+printNum);
                    printNum++;
                }
                mLock.unlock();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
    class Thread2 extends Thread{
        @Override
        public void run() {
            super.run();
            mLock.lock();
            try {
                while (printNum<=3) {
                    wait3Condition.await();
                }
                mLock.unlock();
                mLock.lock();
                while(printNum<=6){
                    Log.v("TAG","--thread2222---printNum is--"+printNum);
                    printNum++;

                }
                wait6Condition.signal();
                mLock.unlock();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        }
    }
    public void startWork(){
        Thread1 thread1=new Thread1();
        Thread2 thread2=new Thread2();
        thread1.start();
        thread2.start();
    }

}