1、join:使调用的线程等待指定的线程执行完成后在继续执行
package zsw.study.join;
import java.util.concurrent.locks.ReentrantLock;
/**
* Created by Administrator on 2017-01-16.
* join方法演示
*/
public class JoinDemo extends Thread{
public static int count = 0;
private ReentrantLock lock = null;
@Override
public void run() {
for (int i = 0;i<10;i++){
lock.lock();
try{
count++;
}finally {
lock.unlock();
}
}
}
public JoinDemo(ReentrantLock lock) {
this.lock = lock;
}
public static void main(String[] args) throws InterruptedException {
ReentrantLock reentrantLock = new ReentrantLock();
Thread t1 = new JoinDemo(reentrantLock);
Thread t2 = new JoinDemo(reentrantLock);
t1.start();t2.start();
//此处调用t1 t2,使执行main的thread等待 t1、t2执行完成后在执行最后的语句
t1.join();t2.join();
System.err.println(JoinDemo.count);
}
}