//Neil Class
//Contains routines to get keyboard input
//by www.neiljohan.com

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

public class NeilClass
{
    public static String GetInputString(final String tMessage) throws IOException
        {
            final BufferedReader tKeyboard =  new BufferedReader(new InputStreamReader(System.in));
            System.out.print(tMessage);
            System.out.flush();
            String tLinex = tKeyboard.readLine();
            return tLinex;
        }

    public static int GetInputInt(final String tMessage) throws IOException
        {
            final BufferedReader tKeyboard =  new BufferedReader(new InputStreamReader(System.in));
            System.out.print(tMessage);
            System.out.flush();
            String tLinex = tKeyboard.readLine();
            int tValue=0;
            
            try
            {
                tValue = new Integer(tLinex).intValue();
            }
            catch (NumberFormatException pNumberFormatException)
            {
                System.out.println("You typed in a non-digit character or other non-valid input");
                System.exit(1);
            }
                return tValue;
        }


    public static double GetInputDouble(final String tMessage) throws IOException
        {
            final BufferedReader tKeyboard =  new BufferedReader(new InputStreamReader(System.in));
            System.out.print(tMessage);
            System.out.flush();
            String tLinex = tKeyboard.readLine();
            double tValue=0;
            
            try
            {
                tValue = new Double(tLinex).doubleValue();
            }
            catch (NumberFormatException pNumberFormatException)
            {
                System.out.println("You typed in a non-digit character or other non-valid input");
                System.exit(1);
            }
                return tValue;
        }

    public static void DrawLine(int tLength)
        {
            for (int Counter = 1; Counter <  tLength; Counter++)
            {
                System.out.print('-');
            }
            System.out.println();
            
        }
}