OCA Java SE 8 Programmer I Certification Guide

7.2. Categories of exceptions

[8.1] Differentiate among checked exceptions, unchecked exceptions, and Errors

The Java compiler and its runtime treat the exception categories in a different manner. This implies that separate rules exist to define methods that throw exceptions and code that handles them.

In this section, you’ll learn about the categories of exceptions in Java: checked exceptions, runtime exceptions, and errors.

7.2.1. Identifying exception categories

As depicted in figure 7.8, exceptions can be divided into three main categories:

• Checked exceptions
• Runtime exceptions
• Errors

Figure 7.8. Categories of exceptions: checked exceptions, runtime exceptions, and errors

Note

Runtime exceptions and errors ...