Java: An Introduction to Problem Solving and Programming, 8th Edition

Chapter Summary

• An exception is an object of a class derived from the class Exception. Descendants of the class Error are not exceptions, but they behave like them.

• Exception handling allows you to design and code the normal case for your program separately from the code that handles exceptional situations.

• Java provides predefined exception classes. You can also define your own exception classes.

• Java has two kinds of exceptions: checked and unchecked (run-time). A method that throws a checked exception must either handle it or declare it in a throws clause within its heading. Checked exceptions must be caught eventually. Otherwise, program execution will terminate. Unchecked, or run-time, exceptions need not be caught or declared in a throws ...