Valid month
A simple validation routine.
Online forms will check that an input is valid before sending data to a server. For example, when entering an expiry date for a debit card, the month must be between 1 and 12 to be accepted. Doing the basic checks at the client side reduces traffic to and load on the server side.
Make
Write a program that keeps asking the user to enter the month until a valid month has been entered. Valid months are 1-12.
Use this boilerplate code as a starting point:
Success Criteria
Remember to add a comment before a subprogram, selection or iteration statement to explain its purpose.
Complete the subprogram called `validate_month` so that it:
- Returns True if the month is greater than or equal to one and less than or equal to twelve.
- Returns False in all other cases.
Complete the `main program` so that:
- The user can input the month as an integer.
- The user is prompted again until they give a valid number within the range one to twelve.
- When a valid input is given the program outputs a confirmation message.
Typical inputs and outputs from the program would be:
Enter a month 1-12: 5
Thank you. Input accepted
Enter a month 1-12: -8
Enter a month 1-12: 0
Enter a month 1-12: 13
Enter a month 1-12: 99
Enter a month 1-12: 3
Thank you. Input accepted.
Knowledge Organiser
Use these resources as a reference to help you meet the success criteria.
Programming guide:
Flowcharts:
Parsons:
Evaluate
Run the unit tests below to check that your program has met the success criteria.
Enter a month 1-12: -3
Enter a month 1-12: 0
Enter a month 1-12: 13
Enter a month 1-12: 22
Enter a month 1-12: 5
Thank you. Input accepted.
Enter a month 1-12: 1
Thank you. Input accepted.
Check that you have:
- Used comments within the code to describe the purpose of subprograms, conditions and iterations.
- Used meaningful identifier names. That means the names of subprograms and variables indicate what they are for.