Default Method in Interface | Java 8 Feature Explained | Java OOPS Tutorial

Published: 18 February 2026
on channel: Coding with Tamilarasan

In this video, we’ll understand Default Methods in Java Interfaces, a powerful feature introduced in Java 8. Default methods allow interfaces to have method implementations without breaking existing classes. 💡

🧩 Topics Covered:

What is a Default Method?

Why were default methods introduced in Java 8?

Syntax of default method in interface

How implementing classes use default methods

Overriding default methods

Resolving multiple inheritance conflicts (diamond problem)

Practical example with explanation

📘 What You’ll Learn:

How interfaces evolved in Java 8

Difference between abstract and default methods

Handling method conflicts in multiple interfaces

Writing backward-compatible interface designs

🚀 Perfect for students, beginners, and those preparing for Java interviews and certifications.

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