Prompt2 Lib

import java.util.Scanner;

public class Prompt2
{
    final private String DEFAULT_INT_PROMPT = "Please enter an integer";



    public static int intInRange( String prompt, int min, int max, String minError,
        String maxError )
    {
        Scanner user_input = new Scanner(System.in);
        int number;

        do
        {
            if (min == Integer.MIN_VALUE && max == Integer.MAX_VALUE)
            {
                System.out.print(prompt + ": ");
            }
            else if (min == Integer.MIN_VALUE)
            {
                intLessThan(prompt, max, maxError);
            }
            else if (max == Integer.MAX_VALUE)
            {
                intGreaterThan(prompt, min, minError);
            }
            else
            {
                System.out.print(prompt + " (between " + min + " and " + max + "): ");
            }

            try
            {
                number = Integer.parseInt(user_input.next());

                if (number < min)
                {
                    System.out.print(minError + " ");
                }
                else if (number > max)
                {
                    System.out.print(maxError + " ");
                }
            }
            catch (NumberFormatException e)
            {
                number = min - 1;
                System.out.print("Input wasn't an integer. ");
            }
        } while (number < min || number > max);

        return number;
    }

    public static int intInRange( int min, int max, String minError, String maxError )
    {
        return intInRange(DEFAULT_INT_PROMPT, min, max, minError, maxError);
    }

    public static int intInRange( int min, int max, String error )
    {
        return intInRange(min, max, error, error);
    }

    public static int intInRange( int min, int max )
    {
        return intInRange(min, max, "Input out of range.");
    }


    public static int intGreaterThan( String prompt, int min, String error )
    {
        Scanner user_input = new Scanner(System.in);
        int number;

        do
        {
            if (min == Integer.MIN_VALUE)
            {
                System.out.print(prompt + ": ");
            }
            else
            {
                System.out.print(prompt + " (greater than " + min + "): ");
            }

            try
            {
                number = Integer.parseInt(user_input.next());

                if (number < min)
                {
                    System.out.print(error + " ");
                }
            }
            catch (NumberFormatException e)
            {
                number = min - 1;
                System.out.print("Input wasn't an integer. ");
            }
        } while (number < min);

        return number;
    }

    public static int intGreaterThan( int min, String error )
    {
        return intGreaterThan(DEFAULT_INT_PROMPT, min, error);
    }

    public static int intGreaterThan( int min )
    {
        return intGreaterThan(min, "Input out of range.");
    }

    public static int wholeNumber( String error )
    {
        return intGreaterThan(0, error);
    }

    public static int wholeNumber()
    {
        return wholeNumber("That's a negative number.");
    }


    public static int intLessThan( String prompt, int max, String error )
    {
        Scanner user_input = new Scanner(System.in);
        int number;

        do
        {
            if (max == Integer.MAX_VALUE)
            {
                System.out.print(prompt + ": ");
            }
            else
            {
                System.out.print(prompt + " (less than " + max + "): ");
            }

            try
            {
                number = Integer.parseInt(user_input.next());

                if (number > max)
                {
                    System.out.print(error + " ");
                }
            }
            catch (NumberFormatException e)
            {
                number = min - 1;
                System.out.print("Input wasn't an integer. ");
            }
        } while (number > max);

        return number;
    }

    public static int intLessThan( int max, String error )
    {
        return intLessThan(DEFAULT_INT_PROMPT, max, error);
    }

    public static int intLessThan( int max )
    {
        return intLessThan(max, "Input out of range.");
    }
}