Java How To Program, Late Objects, 11th Edition

E.3 The print and set Commands

In the preceding section, you learned how to use the debugger’s print command to examine the value of a variable during program execution. In this section, you’ll learn how to use the print command to examine the value of more complex expressions. You’ll also learn the set command, which allows the programmer to assign new values to variables.

For this section, we assume that you’ve followed Step 1 and Step 2 in Section E.2 to open the command window, change to the directory containing the Appendix E examples (e.g., C:\examples\appE) and compile the AccountTest application (and class Account) for debugging.

1. Starting debugging. In the command window, type jdb to start the Java debugger.

2. Inserting a breakpoint. ...