Implementing an Interface and extends class

Interfaces Can Be Extended - Java, A Beginner's Guide, 5th Edition, 5th Edition [Book]

Solved Question 1 (2 points) Consider the following

java - How to ensure that future Implementations of an Interface will also extend a particular Class - Stack Overflow

SOLUTION: Interfaces and packages java full notes - Studypool

Java Interfaces Tutorial (create, implement, and extend)

multiple inheritances in java & How to achieve it - JavaGoal

List, Set, and Map

Can an interface implement another interface? - Quora

Difference between Extends and Implements in Java with Examples - TechVidvan