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

Chapter 7: Java Standard and External Libraries

It is not possible to write a Java program without using the standard libraries, also called the Java Class Library (JCL). That is why a solid familiarity with such libraries is as vital for successful programming as knowing the language itself.

There are also the non-standard libraries, which are called external libraries or third-party libraries because they are not included in the Java Development Kit (JDK) distribution. Some of them have long become a permanent fixture of any programmer’s toolkit.

Keeping track of all the functionality that’s available in these libraries is not easy. This is because an integrated development environment (IDE) gives you a hint about the language’s possibilities, but it cannot advise you about the functionality of a package that hasn’t been imported yet. The only package that is imported automatically is java.lang.

The purpose of this chapter is to provide you with...