Two Threads without Inheritance

public class MyClass {
    public static void main(String[] args) throws InterruptedException {
        Thread thread1 = new Thread() {
            @Override
            public void run() {
                System.out.println("Task1");
            }
        };
        Thread thread2 = new Thread() {
            @Override
            public void run() {
                System.out.println("Task2");
            }
        };
        thread1.start();
        thread2.start();
        thread1.join();
        thread2.join();
    }
}