You're reading from Learn Java 17 Programming Learn the fundamentals of Java Programming with this updated guide with the latest features

Product type Paperback

Published in Jul 2022

Publisher Packt

ISBN-13 9781803241432

Length 748 pages

Edition 2nd Edition

Languages

Java

Tools

Java design patterns

Concepts

Object Oriented Programming

Author (1):

Nick Samoylov

View More author details

Table of Contents (23) Chapters

Preface

1. Part 1: Overview of Java Programming

2. Chapter 1: Getting Started with Java 17 FREE CHAPTER

3. Chapter 2: Java Object-Oriented Programming (OOP)

4. Chapter 3: Java Fundamentals

5. Part 2: Building Blocks of Java

6. Chapter 4: Exception Handling

7. Chapter 5: Strings, Input/Output,and Files

8. Chapter 6: Data Structures, Generics, and Popular Utilities

9. Chapter 7: Java Standard and External Libraries

10. Chapter 8: Multithreading and Concurrent Processing

11. Chapter 9: JVM Structure and Garbage Collection

12. Chapter 10: Managing Data in a Database

13. Chapter 11: Network Programming

14. Chapter 12: Java GUI Programming

15. Part 3: Advanced Java

16. Chapter 13: Functional Programming

17. Chapter 14: Java Standard Streams

18. Chapter 15: Reactive Programming

19. Chapter 16: Java Microbenchmark Harness

20. Chapter 17: Best Practices for Writing High-Quality Code

21. Assessments

22. Other Books You May Enjoy

Reserved and restricted keywords

The keywords are the words that have particular meaning for a compiler and cannot be used as identifiers. As of Java 17, there are 52 reserved keywords, 5 reserved identifiers, 3 reserved words, and 10 restricted keywords. The reserved keywords cannot be used as identifiers anywhere in the Java code, while the restricted keywords cannot be used as identifiers only in the context of a module declaration.

Reserved keywords

The following is a list of all Java-reserved keywords:

By now, you should feel at home with most of the preceding keywords. By way of an exercise, you can go through the list and check how many of them you remember. Up until now, we have not discussed the following eight keywords:

const and goto are reserved but not used, so far.
The assert keyword is used in an assert statement (we will talk about this in Chapter 4, Exception Handling).
The synchronized keyword is used in concurrent...