Validating what users enter in a console program is really important. It helps prevent mistakes and crashes. Here are some simple steps I usually follow:
Ask Clearly: Always tell users exactly what you want them to enter. For example, if you want to know their age, say, “Please enter your age (0-120):”.
Check the Type: Make sure that the input is the right kind. If you want a number, try to convert what they enter and handle any errors if it doesn't work.
Check the Range: If needed, make sure the input is within a certain range. For example, their age should be between 0 and 120.
Ask Again: If the input isn’t valid, ask the user to try again. Keep repeating this until they provide valid information.
By using these tips, you'll save yourself a lot of trouble and make your programs easier for everyone to use!
Validating what users enter in a console program is really important. It helps prevent mistakes and crashes. Here are some simple steps I usually follow:
Ask Clearly: Always tell users exactly what you want them to enter. For example, if you want to know their age, say, “Please enter your age (0-120):”.
Check the Type: Make sure that the input is the right kind. If you want a number, try to convert what they enter and handle any errors if it doesn't work.
Check the Range: If needed, make sure the input is within a certain range. For example, their age should be between 0 and 120.
Ask Again: If the input isn’t valid, ask the user to try again. Keep repeating this until they provide valid information.
By using these tips, you'll save yourself a lot of trouble and make your programs easier for everyone to use!