Java Generics allow programmers to use type parameters, which are symbols that can be substituted for any concrete type.

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In this video I explain:
What generics are in Java
How they make your life easier
How to implement classes and methods that use generics

00:00 Introduction
00:43 Definition
01:08 Benefits
04:20 Classes with generics
06:45 Multiple type parameters
08:34 Methods with generics
10:40 Bounding generics