Book Image

Java Projects - Second Edition

By : Peter Verhas
Book Image

Java Projects - Second Edition

By: Peter Verhas

Overview of this book

Java is one of the most commonly used software languages by programmers and developers. In this book, you’ll learn the new features of Java 11 quickly and experience a simple and powerful approach to software development. You’ll see how to use the Java runtime tools, understand the Java environment, and create a simple namesorting Java application. Further on, you'll learn about advanced technologies that Java delivers, such as web programming and parallel computing, and will develop a mastermind game. Moving on, we provide more simple examples, to build a foundation before diving into some complex data structure problems that will solidify your Java 11 skills. With a special focus on the features of new projects: Project Valhalla, Project Panama, Project Amber, and Project Loom, this book will help you get employed as a top-notch Java developer. By the end of the book, you’ll have a firm foundation to continue your journey toward becoming a professional Java developer.
Table of Contents (12 chapters)

Handling exceptions

Exceptional cases should be handled in Java using exceptions. The ClassCastException is there and it happens when the sort tries to compare String to Integer using StringComparator, and to do that, it tries to cast an Integer to String.

When an exception is thrown by the program using the throw command, or by the Java runtime, the execution of the program stops at that point, and instead of executing the next command, it continues where the exception is caught. It can be in the same method, or in some calling method up in the call chain. To catch an exception, the code throwing the exception should be inside a try block, and the catch statement following the try block should specify an exception that is compatible with the exception thrown.

If the exception is not caught, then the Java runtime will print out the message of the exception along with a stack trace...