Java Tutorials - Extending an Interface in java

In java, an interface may extend another interface. An interface can not implement another interface or a class. When an interface extends another interface, the child interface has all the members of its parent interface.

Java SE 8: Implementing Default Methods in Interfaces

Interface in Java - Scaler Topics

Interfaces and Inheritance in Java - GeeksforGeeks

Interface in Java - Javatpoint

Interface in Java with Example

Java Abstract Class and Methods - Javapapers

Implementing an Interface and extends class

Java, Extending Interface, Syntax and Programs, CS8392-Object Oriented Programming, Tamil

java - Implements vs extends: When to use? What's the difference? - Stack Overflow

Session 8 Lecture Notes for First Course in Java

Java Collections Framework Video Tutorial