Question

4.18 LAB: Checker for integer string Forms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs Yes if every character is a digit 0-9. Ex: If the input is: 1995 the output is: Yes Ex: If the input is: 42,000 or 1995! the output is: No Hint: Use a loop and the isdigit() function (don't forget to include the cctype library).

          4.18 LAB: Checker for integer string
Forms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs Yes if every
character is a digit 0-9.
Ex: If the input is:
1995
the output is:
Yes
Ex: If the input is:
42,000
or
1995!
the output is:
No
Hint: Use a loop and the isdigit() function (don't forget to include the cctype library).