Book Image

Learn Java 17 Programming - Second Edition

By : Nick Samoylov
4 (1)
Book Image

Learn Java 17 Programming - Second Edition

4 (1)
By: Nick Samoylov

Overview of this book

Java is one of the most preferred languages among developers. It is used in everything right from smartphones and game consoles to even supercomputers, and its new features simply add to the richness of the language. This book on Java programming begins by helping you learn how to install the Java Development Kit. You’ll then focus on understanding object-oriented programming (OOP), with exclusive insights into concepts such as abstraction, encapsulation, inheritance, and polymorphism, which will help you when programming for real-world apps. Next, you’ll cover fundamental programming structures of Java such as data structures and algorithms that will serve as the building blocks for your apps with the help of sample programs and practice examples. You’ll also delve into core programming topics that will assist you with error handling, debugging, and testing your apps. As you progress, you’ll move on to advanced topics such as Java libraries, database management, and network programming and also build a sample project to help you understand the applications of these concepts. By the end of this Java book, you’ll not only have become well-versed with Java 17 but also gained a perspective into the future of this language and have the skills to code efficiently with best practices.
Table of Contents (23 chapters)
1
Part 1: Overview of Java Programming
5
Part 2: Building Blocks of Java
15
Part 3: Advanced Java

Summary

This chapter introduced you to the Java collections framework and its three main interfaces: List, Set, and Map. Each of the interfaces was discussed and its methods were demonstrated with one of the implementing classes. The generics were explained and demonstrated as well. The equals() and hashCode() methods have to be implemented in order for an object to be capable of being handled by Java collections correctly.

The Collections and CollectionUtils utility classes have many useful methods for collection handling and were presented in examples, along with the Arrays, ArrayUtils, Objects, and ObjectUtils classes.

The class methods of the java.time package allow time/date values to be managed and were demonstrated in specific practical code snippets.

You can now use all the main data structures we talked about in this chapter in your programs.

In the next chapter, we will overview JCL and some external libraries, including those that support testing. Specifically...