super keyword in java class compiles

So I read about the super keyword in Java on Scaler topics and then started investigating some queries on other forums that caught my eye on this issue and didn't see the right solution there either, so I'm asking here. I'm trying to figure out the implementation behind the super keyword in JAVA.
I created an abstract class and a public class called Extend. Now I have a public class that implements this abstract class.
I can see the implementation behind the super keyword and the 'this' keyword. How does the super keyword access the superclass method? I really appreciate any help you can provide.