Exercise 8.1 X Accumulate Test Score Data Using an Array ...

Don't forget to use parse to convert a string to a date. Be sure to use a try-catch structure to ensure that the user enters a valid date.b. When subtracting one DateTime value from another you get a result of type TimeSpan. If you want to see only the days portion of the TimeSpan structure (and not the hours, minutes, or seconds) you have to ... ................
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