1. /**
    * Loading Images.
    *
    * Processing applications can only load images from the network
    * while running in the Processing environment.
    *
    * This example will not run in a web broswer and will only work when
    * the computer is connected to the Internet.
    */
    
   size(200, 200);
   PImage img1;
   img1 = loadImage("http://processing.org/img/processing_cover.gif");
   if (img != null) {
     image(img1, 0, 0);
   }

it omits a "1" after Img, so the console gives a warning on this and won't Run.