如何用Java实现一个线程控制另一个线程的中止

一、

A线程不停地随机生成输出0-100的整数, B线程中输入Q就会去中止A线程,

使得程序退出

二、源代码

/**
 * @author M166plus
 */
public class demo extends JFrame{
    public static void main(String[] args) {
        A a = new A();
        B b = new B();
        a.start();
        b.start();
    }
}

class A extends Thread{
    static boolean loop = true;
    @Override
    public void run() {
        while (loop) {
            System.out.println((int) (Math.random()*100+1));
            try {
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

class B extends Thread{
    static Scanner myScanner = new Scanner(System.in);
    @Override
    public void run() {
        System.out.println("输入Q退出程序");
        char key = myScanner.next().toUpperCase(Locale.ROOT).charAt(0);
        if(key == 'Q'){
            System.out.println("程序退出");
            A.loop = false;
        }
    }
}

三、IEAD运行结果