我要评论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.
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