线程终止

/**
 * 示例- 线程stop强制性中止，破坏线程安全的示例
 */
public class Demo3 {
  public static void main(String[] args) throws InterruptedException {
    StopThread thread = new StopThread();
    thread.start();
    // 休眠1秒，确保i变量自增成功
    Thread.sleep(1000);
    // 暂停线程
    thread.stop(); // 错误的终止
    // thread.interrupt(); // 正确终止
    while (thread.isAlive()) {
      // 确保线程已经终止
    } // 输出结果
    thread.print();
  }
}

public class StopThread extends Thread {
  private int i = 0, j = 0;

  @Override
  public void run() {
    synchronized (this) {
       // 增加同步锁，确保线程安全
       ++i;
       try {
         // 休眠10秒,模拟耗时操作
         Thread.sleep(10000);
       } catch (InterruptedException e) {
         e.printStackTrace();
       }
       ++j;
    }
  }

  /** * 打印i和j */
  public void print() {
  System.out.println("i=" + i + " j=" + j);
  }
}

/** 通过状态位来判断 */
public class Demo4 extends Thread {
  public volatile static boolean flag = true;

  public static void main(String[] args) throws InterruptedException {
    new Thread(() -> {
      try {
        while (flag) { // 判断是否运行
          System.out.println("运行中");
          Thread.sleep(1000L);
        }
      } catch (InterruptedException e) {
        e.printStackTrace();
      }
    }).start();
    // 3秒之后，将状态标志改为False，代表不继续运行
    Thread.sleep(3000L);
    flag = false;
    System.out.println("程序运行结束");
  }
}

标签：Thread,thread,void,InterruptedException,线程,终止,public
来源： https://www.cnblogs.com/wscp/p/16064566.html