I'm extremely lost on how to do this...
If anyone could help, it would be greatly appreciated.
I need to write an application in c# that continuously prompts a user for test scores until the user enters a sentinel value. A valid score ranges from 0 through 100. When the user enters a valid score, add it to a total; when the user enters an invalid score, display an error message and before the program ends, display the number of scores entered and their average.
The code needs to contain a while loop.
Thanks