Beginning Java 17 Fundamentals

Learn the fundamentals of the Java 17 LTS or Java Standard Edition version 17 Long Term Support release, including basic programming concepts and the object-oriented fundamentals necessary at all levels of Java development. Authors Kishori Sharan and Adam L. Davis walk you through writing your first Java program step-by-step. Armed with that practical experience, you'll be ready to learn the core of the Java language. Beginning Java 17 Fundamentals provides over 90 diagrams and 240 complete programs to help you learn the topics faster.

While this book teaches you the basics, it also has been revised to include the latest from Java 17 likely to include the following: Value types, objects without identity but with an efficient memory layout; local variable type inference (var); pattern matching, a mechanism for testing and deconstruction values; sealed types, a mechanism for declaring all possible subclasses of a class; multi-line text values; and improved interoperability with native code, to enable Java source code to call functions and use data types from other languages, in a way that is easier and have better performance than today.

The book continues with a series of foundation topics, including using data types, working with operators, and writing statements in Java. These basics lead onto the heart of the Java language: object-oriented programming. By learning topics such as classes, objects, interfaces, and inheritance you'll have a good understanding of Java's object-oriented model. The final collection of topics takes what you've learned and turns you into a real Java programmer.

You'll see how to take the power of object-oriented programming and write programs that can handle errors and exceptions, process strings and dates, format data, and work with arrays to manipulate data.

What You Will Learn

• Write your first Java programs with emphasis on learning object-oriented programming
• How to work with switch expressions, value types (records), variable type inference, pattern matching and more from Java 17
• Handle exceptions, assertions, strings and dates, and object formatting
• Use regular expressions
• Take advantage of the JShell REPL tool

Who This Book Is For

Those who are new to Java programming, who may have some or even no prior programming experience.