Core Java for the Impatient, 3rd Edition

Chapter 5

Exceptions, Assertions, and Logging

Topics in This Chapter

• 5.1 Exception Handling

• 5.2 Assertions

• 5.3 Logging

• Exercises

In many programs, dealing with the unexpected can be more complex than implementing the “happy day” scenarios. Like most modern programming languages, Java has a robust exception-handling mechanism for transferring control from the point of failure to a competent handler. In addition, the assert statement provides a structured and efficient way of expressing internal assumptions. Finally, you will see how to use the logging API to keep a record of the various events, be they routine or suspicious, in the execution of your programs.

The key points of this chapter are:

1. When you throw an exception, control is transferred ...