/** * Load and Display  *  * Images can be loaded and displayed to the screen at their actual size * or any other size.  */ PImage a;  // Declare variable "a" of type PImagevoid setup() {  size(200, 200);  // The file "jelly.jpg" must be in the data folder  // of the current sketch to load successfully  a = loadImage("jelly.jpg");  // Load the image into the program    noLoop();  // Makes draw() only run once}void draw() {  // Displays the image at its actual size at point (0,0)  image(a, 0, 0);   // Displays the image at point (100, 0) at half of its size  image(a, 100, 0, a.width/2, a.height/2);}