Hi guys! I got a question. How do you secure the entry in a program you write in c or java?

Question

like if you ask the user to enter a number of type int, how do you prevent the user to enter for example a string, a name or a double?
like if I want to get only int:
Scanner number = new Scanner(Sustem.in);
int UserNumber = number.nextInt;

I want such a program to give an error message once the entry is not an "int value "

Answer 1

by providing acess specifiers we will give security like private public protected default in the security isssue java is more helpful

Answer 2

ok.
I'll make research about that

Answer 3

thanks anyway buddy!

Answer 4

ok I see that.
thanks for your contribution