Java How to Program, Early Objects, 11th Edition

11 Exception Handling: A Deeper Look

Objectives

In this chapter you’ll:

• Learn why exception handling is an effective mechanism for responding to runtime problems.

• Use try blocks to delimit code in which exceptions might occur.

• Use throw to indicate a problem.

• Use catch blocks to specify exception handlers.

• Learn when to use exception handling.

• Understand the exception class hierarchy.

• Use the finally block to release resources.

• Chain exceptions by catching one exception and throwing another.

• Create user-defined exceptions.

• Use the debugging feature assert to state conditions that should be true at a particular point in a method.

• Learn how try-with-resources can automatically release a resource when the try block terminates.