package cmd;import core.*;import db.*;import java.text.ParseException;import java.util.Date;import java.util.List;public class MAddCommand extends MDatabaseCommand{    private static final String [] PARAM_NAMES =    { "first", "last", "date", "days", "type", "guests" };    private static final String [] PARAM_PROMPTS =    { "Enter first name:", "Enter last name:",       "Enter date of arrival (mm/dd/yy):",      "Enter days staying:", "Enter room type:", "Enter # of guests:" };    public MAddCommand ()	throws java.io.IOException    {	super ();    }    public String [] getParameterNames ()    {	return PARAM_NAMES;    }        public String [] getParameterPrompts ()    {	return PARAM_PROMPTS;    }    public void executeDatabaseCommand (HotelDB database)    { 	try {	    addReservation (database);            displayResults ("Reservation added", null);	} catch (ParseException e) {	    System.err.println ("AddCommand: Error parsing date " + 				getParameter ("date"));	    System.err.println ("Command not executed.");	} catch (NumberFormatException e) {	    System.err.println ("AddCommand: Error parsing integer value ");	    System.err.println ("Command not executed.");	}    }    protected void displayResultsText (String title, List result)    {        System.out.println (title);    }    protected void displayResultsGUI (String title, List result)    {        javax.swing.JOptionPane.showMessageDialog(getFrame(), title,                                       "Add Command Succeeded",                                       javax.swing.JOptionPane.INFORMATION_MESSAGE);    }    private void addReservation (HotelDB database)	throws java.text.ParseException, NumberFormatException    {	String dateString = getParameter ("date");	Date date = DBUtilities.parseDate (dateString);	int roomType = Integer.parseInt (getParameter ("type"));	int guests = Integer.parseInt (getParameter ("guests"));	int days = Integer.parseInt (getParameter ("days"));	Reservation res = new Reservation (getParameter ("last"),					   getParameter ("first"),					   date, guests, roomType, days);	database.addReservation (res);    }    public String getName ()    { return "add"; }    public String getMenuName ()    { return "Add..."; }    public String getDescription ()    { 	return "Adds a reservation (date (MM/DD/YY), first, last, room type, guests, days";     }    public Command makeInstance ()    {	try	{	    return new MAddCommand ();	} catch (java.io.IOException e)	{	    return null;	}    }}