MyMaze

First off, in the world class, move what you have in the act method up into the constructor where those statements belong. Secondly, why, in the world class, are you adding this.getWidth() and this.getHeight() (which are returning the width and height of your world) to the x and y of where you are adding the objects into the world at? That will place them outside of your world (that is why they all appear at the lower right corner of your world window).