Hi fellows, i would like how to stop user to input char in integers?

Answer 1

You cannot stop users from inputting nonsense. You can only validate the input. E.g. the way proposed by Tomás Ribeiro

Answer 2

You can do a while loop, inside you read as a "string" and check if the string can be converted to an integer, if so you break the loop, if not you keep on the loop.