Java Multithreading: Implementation Guide

There are two ways to implement multithreading in Java.

1. Extend the Thread class: Create a new class that extends the Thread class, and override the run() method to define the logical tasks of the thread. Then, create an instance of this class and call the start() method to start the thread.

public class MyThread extends Thread {
    public void run() {
        // 线程任务逻辑
    }
}

public class Main {
    public static void main(String[] args) {
        MyThread myThread = new MyThread();
        myThread.start();
    }
}

1. Implementing the Runnable interface: Define a class that implements the Runnable interface and implements the run() method, where you write the task logic for the thread. Then create an instance of this class and pass it to the constructor of the Thread class, and call the start() method to start the thread.

public class MyRunnable implements Runnable {
    public void run() {
        // 线程任务逻辑
    }
}

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

Both methods can achieve multithreading, but generally it is recommended to use the second method because Java supports single inheritance. If you inherit the Thread class, you cannot inherit any other class, while implementing the Runnable interface can avoid this issue.