Drawing Strings

public class Score extends Actor
{
    public int scoreKeep = 0;
    /**
     * Act - do whatever the Score wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        // Add your action code here.
    }  


    public Score(int losewin, int score)
    {
        scoreKeep = score;
        if( losewin == 0)
        {
            GreenfootImage scoreboard = new GreenfootImage (100,30);
            scoreboard.drawString ("You Win! Score: " + scoreKeep, 200, 200);
            setImage (scoreboard);
        }
        if (losewin == 1)
        {
            GreenfootImage scoreboard = new GreenfootImage (100,30);
            scoreboard.drawString ("You Lose! Score: " + scoreKeep, getWorld().getWidth()/2, getWorld().getHeight()/2);
            setImage (scoreboard);
        }

    }
}

 public int scoreKeep = 0;
    /**
     * Constructor for objects of class Platforms.
     * 
     */
    public Platforms()
    {    
        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
        super(800, 600, 1,false);

        prepare();
    }
    
    public void winGame()
    {
            addObject(new Score(0,scoreKeep),getWidth()/2,getHeight()/2);
    }
    
    public void loseGame()
    {
       addObject(new Score(1,scoreKeep),getWidth()/2,getHeight()/2);
    }
    
    public void addScore()
    {
        scoreKeep = scoreKeep + 10;
    }

import greenfoot.*;
import java.awt.Color;

public class Score extends Actor
{
    public int losewinKeep, scoreKeep;

    public Score(int losewin, int score)
    {
        losewinKeep = losewin;
        scoreKeep = score;
    }

    public void addedToWorld(World world)
    {
        GreenfootImage scoreboard = new GreenfootImage(world.getWidth(), world.getHeight());
        String text = "";
        if (losewinKeep == 0) text = "You Win!\nScore: " + scoreKeep;
        if (losewinKeep == 1) text = "You Lose!\nScore: " + scoreKeep;
        GreenfootImage txtImg = new GreenfootImage(text, 48, Color.yellow, new Color(0, 0, 0, 0));
        scoreboard.drawImage((scoreboard.getWidth()-txtImg.getWidth())/2, (scoreboard.getHeight()-txtImg.getHeight())/2);
        setImage(scoreboard);
    }
}