How to present abstract class which has relationship with interface class in class diagram

I have to do diagram with minimum of one abstract class and interface.I though to be a good idea to implement the interface class here. My table is customer which is the abstract class.The interface …

Do we need to add interface Runnable in our UML class diagram? [closed]

I have created a simple FlappyBird clone game with socket programming and now I am doing the UML diagram. My classes implements Runnable Like: static class Flappy implements Runnable{….} and: …