Implement the body of the createStars method that you created earlier. This method should include the following:
¦ Retrieve the world's background image.
¦ Use a for loop similar to the one in addAsteroids. The limit for the loop is given in the method parameter.
¦ In the body of the loop, generate random x and y coordinates. Set the color to white and then paint a filled oval with a width and height of two pixels.
Test! Do you see stars in your world? If all went well, you should.