Applications use data structures to store data that can be utilized throughout the lifetime of an application instance. The Java language contains several data structures known as collection types, and they can be utilized for this purpose. These data structures implement the java.util.Collection interface, which provides a variety of methods that are useful for adding, removing, and performing tasks against the data that is used with the collection. This chapter introduces some of the data structures that can be utilized within a Java application for the storage of user data. It discusses some of the data structures in detail and introduces operations performed on the data. The concepts of pipelines and streams are introduced in this chapter, and it provides recipes that demonstrate their usage.
## 7-1. Defining a Fixed Set of Related Constants Problem
You need a type that can represent a fixed set of related constants.
## Solution
Use an enum type. The following example defines an enum type, called FieldType, to represent various form fields you might find on the GUI of an application.

Java 17 Recipes : A Problem-Solution Approach

Juneau, Josh, Manelli, Luciano

JOSH MANELLI, LUCIANO JUNEAU

Apress, Incorporated

Springer Nature

Apress L. P.

Springer Nature, [New York, N.Y.], 2022

United States, United States of America

Fourth edition, New York, N.Y, 2022

4th ed. 2022, Berkeley, CA, 2022

4th edition, Berkeley, CA, 2022

4th ed., US, 2022

4, 20220224

S.l, 2022

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Quickly find solutions to dozens of common programming problems encountered while building Java applications, with recipes presented in the popular problem-solution format. Look up the programming problem that you want to resolve. Read the solution. Apply the solution directly in your own code. Problem solved! Java 17 Recipes is updated to reflect changes in specification and implementation since the Java 9 edition of this book. Java 17 is the next long-term support release (LTS) of the core Java Standard Edition (SE) version 17 which also includes some of the features from previous short term support (STS) releases of Java 16 and previous versions. This new edition covers of some of the newest features, APIs, and more such as pattern matching for switch, Restore Always-Strict-Floating-Point-Semantics, enhanced pseudo-random number generators, the vector API, sealed classes, and enhancements in the use of String. Source code for all recipes is available in a dedicated GitHub repository. This must-have reference belongs in your library. What You Will Learn 1) Look up solutions to everyday problems involving Java SE 17 LTS and other recent releases, 2) Develop Java SE applications using the latest in Java SE technology, 3) Incorporate Java major features introduced in versions 17, 16, and 15 into your code. Who this book is for are programmers and developers with some prior Java experience

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Erscheinungsdatum: 25.02.2022