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Thanks but my program must not accept any letter or symbol and it must only accepts numbers,please advise.

Hi,
but I need to loop it if the input is incorrect,do you have any other advice?

--- Update ---

I mean the program needs to loop and it only accepts a numeric input.

Hi Java professionals,
I want to limit the program to only accept a 12 digit input and an integer value but I don't know how to program it,please help.

import java.util.Scanner;
public class...