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

Asynchronous processing

Asynchronous means that the requestor gets the response immediately, but the result is not there. Instead, the requestor waits until the result is sent to them, saved in the database, or, for example, presented as an object that allows you to check whether the result is ready. If the latter is the case, the requestor calls a certain method to this object periodically and, when the result is ready, retrieves it using another method on the same object. The advantage of asynchronous processing is that the requestor can do other things while waiting.

In Chapter 8, Multithreading and Concurrent Processing, we demonstrated how a child thread can be created. Such a child thread then sends a non-asynchronous (blocking) request and waits for its return doing nothing. Meanwhile, the main thread continues executing and periodically calls the child thread object to see whether the result is ready. That is the most basic of asynchronous processing implementations. In...