Threads

Threads allow a program to perform multiple tasks concurrently. In Java, you can create threads by extending the Thread class or implementing the Runnable interface.

Extending the Thread Class

You can create a new thread by creating a subclass of Thread and overriding the run() method.

public class MyThread extends Thread {
    public void run() {
        System.out.println("This code is running in a thread");
    }

    public static void main(String[] args) {
        MyThread t1 = new MyThread();
        t1.start();
    }
}

Implementing the Runnable Interface

The preferred way to create a thread is to implement the Runnable interface. This allows your class to extend other classes.

public class MyRunnable implements Runnable {
    public void run() {
        System.out.println("This code is running in a thread");
    }

    public static void main(String[] args) {
        Thread t1 = new Thread(new MyRunnable());
        t1.start();
    }
}