Pop-up message

public void act()
    {
        String text = "Cuidar de uno mismo es el primer paso para alcanzar tus objetivos. \n Tú eres el mejor.";
        GreenfootImage inner = new GreenfootImage(text, 48, Color.black, new Color(0, 0, 0, 96));
 
    public clown()
    {
    } 
  
        public void addedToWorld(World world)
        {
        int wide = world.getWidth();
        int high = world.getHeight();
        GreenfootImage outer = new GreenfootImage(wide, high);
        int leftX = (wide - inner.getWidth())/2;
        int topY = (high - inner.getHeight())/2;
        outer.drawImage(inner, leftX, topY);
        setImage(outer);
        }
    public void act()
    {
        if (Greenfoot.mouseClicked(this))
        {
             getWorld().removeObject(this);
        }
    }
}