Chapter 3, Problem 8E

What error message do you see in the Code Pad if you type the following?

$\text{NumberDisplay}\text{.getValue}\text{( )}$

Take a careful look at this error message and try to remember it because you will likely encounter something similar on numerous future occasions. Note that the reason for the error is that the class name, NumberDisplay, has been used incorrectly to try to call the getValue method, rather than the variable name nd.