Java Command Line Made Easy

CommandLine.java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class CommandLine
{
	private static final BufferedReader input;
	static
	{
		input = new BufferedReader(new InputStreamReader(System.in));
	}

	private CommandLine() {};

	public static String getUserInput (String message)
	{
		System.out.print(message);
		String value = null;

		try
		{
			value = input.readLine();
		}
		catch (IOException e)
		{
			System.out.println("Error reading input from user : " + e.getMessage());
		}

		return value;
	}

	public static String getUserInput (String message, int maxLen)
	{
		boolean loop = true;
		String value = null;

		while (loop)
		{
			loop = false;
			value = getUserInput(message);

			if (value.length() > maxLen)
			{
				loop = true;
				System.out.println();
				System.out.println("Input must be less than " + maxLen + " characters.");
			}
			else
			{
				loop = false;
			}
		}

		return value;
	}

	public static int getNumberInRange(String message, int min, int max)
	{
		boolean loop = true;
		int value = 0;

		while (loop)
		{
			loop = false;
			String input = getUserInput(message);
			value = Integer.parseInt(input, 10);

			if ((value > max) || (value < min))
			{
				loop = true;
				String alert = (value > max) ? "Value must be less than or equal to " + max : "Value must be more than or equal to " + min;
				System.out.println();
				System.out.println(alert);
			}
		}

		return value;
	}

	public static boolean getUserInput (String message, String tv)
	{
		String value = getUserInput(message);
		return (value.equalsIgnoreCase(tv)) ? true : false;
	}
}