A Run-Time Error

Way back in Section 1.3 I talked about run-time errors, which are errors that don't appear until a program has started running.

So far, you probably haven't seen many run-time errors, because we haven't been doing many things that can cause one. Well, now we are. If you use the [] operator and you provide an index that is negative or greater than length-1, you will get a run-time error and a message something like this:

Try it in your development environment and see how it looks.