Timers

import greenfoot.*;  
import java.awt.Color;      
  
public class Timer extends Actor     
{        
   long initialTime = System.currentTimeMillis();  
   long elapsedTime;

   static long totalTime = 360500;
   static long totalElapsedTime = 360500;
   Field field;
   int counter = 0;
    public Timer()     
    {             
        updateImage();
        
    }    
  
    public void act()     
    {      
        elapsedTime = System.currentTimeMillis() - initialTime;  
        updateImage();  
        if (elapsedTime >= 12050) 
        {
            Start start = new Start();
            start.canStart=false;
            showStatistics(); 
        }  
        
    }          
    private void updateImage()  
    {  
        GreenfootImage image = new GreenfootImage(300, 300);
        setImage(image);
        image.drawString("Time: " + ((int) ((120500 - elapsedTime)) / 1000), 108, 20);
        totalTime -= totalTime - elapsedTime;
        image.drawString("Total Time: " + (int) totalTime/1000, 108, 50);
        
    }  
    private void showStatistics()
    {
         getWorld().addObject(new Statistics(), getWorld().getWidth()/2,getWorld().getHeight()/2);
         ScoreBoard scoreboard = new ScoreBoard();
         scoreboard.period();
         getWorld().removeObject(this);
    }
}