Is it possible to implement a multithreaded program that runs within a single process?

Yes, in Java it is possible to implement a multithreaded program that runs within a single process. In Java, multithreading is achieved by creating and managing threads (Thread) within a single JVM process. Each thread runs in parallel, sharing the process memory, which allows for efficient resource utilization and concurrent task execution.

Example of creating and starting two threads:

public class MultiThreadExample {
    public static void main(String[] args) {
        Thread thread1 = new Thread(() -> {
            System.out.println("Thread 1 is running");
        });

        Thread thread2 = new Thread(() -> {
            System.out.println("Thread 2 is running");
        });

        thread1.start();
        thread2.start();
    }
}