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

I/O streams

Any software system has to receive and produce some kind of data that can be organized as a set of isolated input/output or as a stream of data. A stream can be limited or endless. A program can read from a stream (which is called an input stream) or write to a stream (which is called an output stream). The Java I/O stream is either byte-based or character-based, meaning that its data is interpreted either as raw bytes or as characters.

The java.io package contains classes that support many, but not all, possible data sources. It is built for the most part around input from and to files, network streams, and internal memory buffers. It does not contain many classes necessary for network communication. They belong to java.net, javax.net, and other packages of a Java networking API. Only after the networking source or destination is established (a network socket, for example) can a program read and write data using the InputStream and OutputStream classes of the java.io...