What is the main purpose of the Runnable interface in Java and where is it used?

The Runnable interface in Java is designed to represent a task that can be executed in a separate thread.

The main goal is to define the run() method, which contains the code to be executed in the new thread.

Applications:

• Allows creating objects that can be passed to a thread (Thread) to execute asynchronously.
• Separates the task from the thread management mechanism.

Example of usage:

public class MyTask implements Runnable {
    @Override
    public void run() {
        System.out.println("Task is running in a separate thread");
    }
}

// Starting the thread
Thread thread = new Thread(new MyTask());
thread.start();

Thus, Runnable simplifies multithreading by allowing you to define the work that needs to be performed in parallel.