停止できるスレッド——return法(菜鳥遊びスレッド)

停止できるスレッド_returnを使用してスレッドを停止する
実装コードは次のとおりです.

package com.thread8;

public class MyThread extends Thread {
    @Override
    public void run() {
        super.run();

        while (true) {
            if (this.isInterrupted()) {
                System.out.println("   ！！");
                return;
            }
            System.out.println("timer = " + System.currentTimeMillis());
        }
    }
}

package com.fiberhome.thread8;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;

public class Run {
    public static void main(String[] args) {

        File f = new File("out.txt");
        try {
            f.createNewFile();
        } catch (IOException e) {
            e.printStackTrace();
        }
        FileOutputStream fileOutputStream = null;
        try {
            fileOutputStream = new FileOutputStream(f);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        PrintStream printStream = new PrintStream(fileOutputStream);
        System.setOut(printStream);

        try {
            MyThread myThread = new MyThread();
            myThread.start();
            Thread.sleep(2000);
            myThread.interrupt();
        } catch (InterruptedException e) {
            System.out.println("main catch");
            e.printStackTrace();
        }
        System.out.println("end!!");
    }
}

timer = 1541148698257
timer = 1541148698257
timer = 1541148698257
timer = 1541148698257
timer = 1541148698257
timer = 1541148698257
timer = 1541148698257
timer = 1541148698257
timer = 1541148698258
timer = 1541148698258
timer = 1541148698258
timer = 1541148698258
timer = 1541148698258
timer = 1541148698258
end!!
   ！！

， interrupt() return “ ” ， catch ， 、 ， return; 。