Interface in Java Explained | Shape Interface & Implementation | Java Zero to Hero – Episode 29
Welcome to Episode 29 of Java Zero to Hero for Software Automation Testing
In this video, we explain interfaces in Java using the same Shape example, but this time implemented as an interface instead of an abstract class.
You’ll learn how an interface defines a contract using method declarations, and how implementing classes provide the actual logic. We demonstrate this using a draw() method implemented by different shape classes.
Interfaces are heavily used in real Java applications, APIs, and automation frameworks, especially for achieving multiple inheritance and loose coupling.
-- In this video, you’ll learn:
What an interface is in Java
Difference between interface and abstract class
How to define an interface
Implementing an interface using the implements keyword
Implementing the draw() method in multiple classes
Why interfaces are important for scalable Java design
-- Who this video is for:
Java beginners
Automation testing beginners
Manual testers learning OOP
Students preparing for Java interviews
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