My program runs from the command line and requires the user to enter booleans (yes or no) and integers (numbers without decimals). For this I have two methods to check to make sure the user makes a valid entry, for example if the user is asked what temperature it is outside "cheese" isn't a valid response. What should happen if the user gives invalid input? Should the same prompt be repeated? Should it remind the user of the input type needed?
For example:
Please enter your height in cm: xyz
Please enter an integer.
Please enter your height in cm: 180
Do you wear glasses: 5
Please enter y/n.
Do you wear glasses: blah
Please enter y/n.
Do you wear glasses: y
Also, is it clear if a boolean is expected to tell the user to answer using y/n?