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More Java 17: An In-Depth Exploration of the Java Language and Its Features
book

More Java 17: An In-Depth Exploration of the Java Language and Its Features

by Kishori Sharan, Peter Späth
December 2021
Intermediate to advanced
970 pages
18h 58m
English
Apress
Content preview from More Java 17: An In-Depth Exploration of the Java Language and Its Features
© Kishori Sharan, Peter Späth 2021
K. Sharan, P. SpäthMore Java 17 https://doi.org/10.1007/978-1-4842-7135-3_3

3. Generics

Kishori Sharan1   and Peter Späth2
(1)
Montgomery, AL, USA
(2)
Leipzig, Sachsen, Germany
 
In this chapter, you will learn:
  • What generics are

  • How to define generic types, methods, and constructors

  • How to define bounds for type parameters

  • How to use wildcards as the actual type parameters

  • How the compiler infers the actual type parameters for generic type uses

  • Generics and their limitations in array creations

  • How the incorrect use of generics may lead to heap pollution

All example programs in this chapter are a member of a jdojo.generics module, as declared in Listing 3-1.
// module-info.java
module jdojo.generics {
    exports com.jdojo.generics; ...
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