Is it possible to ask a user to input numbers using this app???

Question

import java.util.Scanner;
public class Program
{
public static void main(String[] args)
{
Scanner keyboard = new Scanner(System.in);
System.out.println("Enter a number:");
int x = keyboard.nextInt();
System.out.println("You entered:"+x);
}
}

The code above shows an error when trying to run it using this application. I am 100% sure there is no mistake in this code and if you run it on PC, it will work. Does that mean it is not posiible to take input from a user?

Answer 1

And I'm 200% sure that it'll work smooth, the only thing is the input prompt won't be having a query - "Enter a number:"

Answer 2

Yes it will, if you consider
string-->number