Learn everything you need to know about Java Generics in this complete, in-depth course! Whether you're prepping for interviews, improving code safety, or just trying to understand wildcards, this tutorial will walk you through the core concepts with clarity.
🚀 Topics Covered:
✅ Upper Bounded Wildcards (? extends Type)
✅ Lower Bounded Wildcards (? super Type)
✅ PECS Principle: Producer Extends, Consumer Super
✅ Covariant, Contravariant, and Invariant Generics
✅ extends vs super in Generics
✅ Real-world examples and best practices
⏱️ Duration: 2 hours 50 minutes
📌 Ideal for: Intermediate to Advanced Java Developers
#javagenerics #javaprogramming #javadevelopers #javaforbeginners
Timestamp
-----
00:00 - Introduction
05:08 - Class Level Upper Bound Type Parameter
34:33 - Achieving covariance with extends keyword
01:04:28 - Upper bounded wildcards( ? extends Type )
01:24:08 - Producers extends (PECS)
1:12:30 - The extends Keyword in Generics - Practice
1:55:13 - Covariance vs Contravariance vs Invariance in generics
2:12:57 - Lower bounded Wildcards (? super Type)
2:50:00 - Outro
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