Random number guess game in Java

import javax.swing.JOptionPane;

public class RandomNumberGuessGame {

    public static void main(String[] args){
        int minimum = /*1;*/ getUserInput("Enter lower end of guessrange: ");
        int maximum = /*10;*/getUserInput("Enter higher end of guessrange: ");
        int random = minimum + (int)(Math.random() * ((maximum - minimum) + 1));
        int userGuess = getUserInput("Enter guess: ");
        while (userGuess != random){
            JOptionPane.showMessageDialog(null ,getDifferenceAsString(userGuess, random));
            userGuess = getUserInput("Enter new guess: ");
        }
        JOptionPane.showMessageDialog(null, "Success");
    }
    public static String getDifferenceAsString(int guess, int computatedNumber){
        if(guess < computatedNumber){
            return "Guess was too low";
        } else if(guess > computatedNumber){
            return "Guess was too high";
        } else {
            return "";
        }

    }
    public static int getUserInput(String message){
        int input = Integer.parseInt(JOptionPane.showInputDialog(message));
        return input;
    }

}