Is it a good or bad idea throwing Exceptions when validating data?

Question

When validating data, I\'ve gotten into a habit of doing the following:

Note: I don\'t really have individual booleans for each check. This is just

Answer 1

In the title you call it "validating" data. That can happen on several levels. In (near) the GUI where you are checking user entered data, you should be expecting errors and have ways to report the errors back. Exceptions are inappropriate in this case.

But Data Validation can also happen at other boundaries, say between business-rule classes. There, errors in the data are uncommon and unexpected. You should throw when you detect one.