我如何制作一个按钮,当按下时,停止运行一个内部程序?

ProcessBuilder

stop

public class Main {

    public static void main(String args[]) throws InterruptedException {

        ThreadGroup internalTG = new ThreadGroup("internal");
        Thread otherProcess = new Thread(internalTG, "Internal Program") {
            public void run() {
                OtherProgram.main(new String[0]);
            }
        };

        System.out.println("Starting internal program...");
        otherProcess.start();

        Thread.sleep(1000);
        System.out.println("Killing internal program...");

        internalTG.stop();
    }
}

class OtherProgram {

    public static void main(String[] arg) {
        for (int i = 0; i < 5; i++)
            new Thread() {
                public void run() {
                    System.out.println("Starting...");
                    try {
                        sleep(5000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    System.out.println("Stopping...");
                }
            }.start();
    }
}

Starting internal program...
Starting...
Starting...
Starting...
Starting...
Starting...
Killing internal program...