多线程_线程控制之加入线程

package cn.itcast_04;

/*
 * public final void join():等待该线程终止。 
 */
public class ThreadJoinDemo {
  public static void main(String[] args) {
    // 创建线程对象
    ThreadJoin tj1 = new ThreadJoin();
    ThreadJoin tj2 = new ThreadJoin();
    ThreadJoin tj3 = new ThreadJoin();

    // 重命名线程
    tj1.setName("李渊");
    tj2.setName("李世民");
    tj3.setName("李元霸");

    // 启动线程
    tj1.start();
    try {
      tj1.join();
    } catch (InterruptedException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    
    tj2.start();
    tj3.start();
  }
}

package cn.itcast_04;

public class ThreadJoin extends Thread {
  @Override
  public void run() {
    for (int x = 0; x < 50; x++) {
      System.out.println(getName() + ":" + x);
    }
  }
}