Find out if two numbers have a middle!

gistfile1.java

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        middleNumber();
    }

    public static void middleNumber() {
        Scanner s = new Scanner(System.in);
        System.out.println("Enter the first number.");
        double one = s.nextDouble();
        System.out.println("Enter the second number.");
        double two = s.nextDouble();
        double number = one + two;
        number = number / 2;
        if (number % 1 == 0) {
            System.out.println("Congratulations, those numbers have a middle! The middle number is " + number + "!");
        } else {
            System.out.println("Those two numbers have no middle :( !");
        }
    }
}