Java – we can create runnable objects as its interfaces

I see a sample code that uses the new runnable (), which is an anonymous inner class

Runnable runnable = new Runnable() {
public void run() {
int option = (int) (Math.random() * 4);
switch (option) {
case 0: x.a(); break;
case 1: x.b(); break;
case 2: y.a(); break;
case 3: y.b(); break;
}
}
};

Any help is appreciated I'm new here.

Solution

Yes We can. This is called an anonymous inner class It can not only run, but also be created anonymously for any interface

It is recommended to read this article

https://docs.oracle.com/javase/tutorial/java/javaOO/anonymousclasses.html