Java 8 Default Methods in Interface | Multiple Inheritance & Conflict Resolution
Default Methods in Java 8 completely changed the way interfaces work. In this video, we do a deep dive into default methods in Java 8, understand why default methods were introduced, and how they solve real problems like backward compatibility in Java 8.
If you're preparing for Java 8 interview questions or want to clearly understand the evolution of interfaces in Java, this tutorial is for you.
🚀 What You’ll Learn in This Java 8 Tutorial
✅ What is a Default Method in Interface?
✅ Why Java 8 introduced default methods?
✅ How default methods support backward compatibility?
✅ Rules of default methods in Java 8
✅ Conflict resolution when multiple interfaces have same default method
✅ Diamond problem in Java explained with examples
✅ Method overriding in Java with default methods
✅ Object Class vs Default Method behavior
✅ How Java handles multiple inheritance using default methods
00:00 : Introduction
00:15 : What is a Default Method?
02:29 : Why were Default Methods introduced?
07:58 : Multiple Default Methods in an Interface
08:35 : Overriding Default Methods
09:59 : Multiple Inheritance Problem (Diamond Problem)
13:34 : Multiple Inheritance Problem (Class Precedence)
15:25 : Default Methods and Object class
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