leetcode-go/oj/concurrent/TestRunnable.java

public class TestRunnable {
    public static void main(String[] args) {
        MyRunnable runnable = new MyRunnable();
        Thread thread = new Thread(runnable);
        thread.start();
    }
}

class MyRunnable implements Runnable {
    @Override
    public void run() {
        try {
            Thread.sleep(1000);
        } catch (Exception e) {
            e.printStackTrace();
        }
        System.out.println("Finished.");
    }
}