How to implement threads in Java?

In Java, threads can be implemented in two ways:

1. Inheriting from the Thread class:

public class MyThread extends Thread {
    @Override
    public void run() {
        // 线程执行的代码
        System.out.println("线程运行中");
    }

    public static void main(String[] args) {
        MyThread myThread = new MyThread();
        myThread.start(); // 启动线程
    }
}

1. Implementing the Runnable interface.

public class MyRunnable implements Runnable {
    @Override
    public void run() {
        // 线程执行的代码
        System.out.println("线程运行中");
    }

    public static void main(String[] args) {
        MyRunnable myRunnable = new MyRunnable();
        Thread thread = new Thread(myRunnable);
        thread.start(); // 启动线程
    }
}

Whether you inherit the Thread class or implement the Runnable interface, you need to override the run() method to define the code that the thread will execute. Then create a thread object and start the thread by calling the start() method.