Java Fundamentals

Chapter 9

Exception Handling

Learning Objectives

By the end of this lesson, you will be able to:

• Use exception-throwing libraries
• Use exception handling effectively
• Acquire and release resources in a way that respects exceptions without creating leaks
• Implement best practices to incorporate exceptions in Java

Introduction

Exception handling is a powerful mechanism for handling erroneous cases that occur while our code is running. It enables us to focus on the main execution of the program and separate the error-handling code from the expected execution path. The Java language forces programmers to write exception-handling code for library methods, and IDEs such as IntelliJ, Eclipse, and so on help us generate the boilerplate code necessary. ...