java中Thread.join（）的使用方法
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java中Thread.join（）的使⽤⽅法
java 中Thread.join()的使⽤⽅法
如果⼀个线程A执⾏了thread.join()语句，其含义是：当前线程A等待thread线程终⽌之后才从thread.join()返回。
import java.util.concurrent.TimeUnit;
/**
* 6-13
*/
public class Join {
public static void main(String[] args) throws Exception {
Thread previous = Thread.currentThread();
for (int i = 0; i < 10; i++) {
// 每个线程拥有前⼀个线程的引⽤，需要等待前⼀个线程终⽌，才能从等待中返回
Thread thread = new Thread(new Domino(previous), String.valueOf(i));
thread.start();
previous = thread;
}
TimeUnit.SECONDS.sleep(5);
System.out.println(Thread.currentThread().getName() + " terminate.");
}
static class Domino implements Runnable {
private Thread thread;
public Domino(Thread thread) {
this.thread = thread;
}
public void run() {
try {
thread.join();
} catch (InterruptedException e) {
}
System.out.println(Thread.currentThread().getName() + " terminate.");
}
}
}
执⾏结果：
main terminate.
0 terminate.
1 terminate.
2 terminate.
3 terminate.
4 terminate.
5 terminate.
6 terminate.
7 terminate.
8 terminate.
9 terminate.
