线程状态—停止

package state;

public class TestStop implements Runnable{
    //设置一个标志位
    private boolean flag = true;
    @Override
    public void run() {
        int i = 0;
        while (flag){
            System.out.println("running"+i++);
        }
    }
    //设置一个公开的方法停止线程，用于转换标志位
    public void stop(){
        this.flag = false;
    }


    public static void main(String[] args) {
        TestStop testStop = new TestStop();
        new Thread(testStop).start();
        for (int i = 0; i < 1000; i++) {
            System.out.println("main"+i);
            if(i ==900){
                //调用stop方法，切换标志位，让线程停止
                testStop.stop();
                System.out.println("stopped");
            }

        }

    }
}