21. (2 points) Create a class to represent rectangles. A rectangle is specified (as with drawing them in Processing) by the
coordinates of its upper left corner, its width, and its height. Give your class just enough functionality to make it work with
the program below. The display() method should simply draw the rectangle with no change in fill or stroke.
Rectangle[] boxes = new Rectangle [100];
void setup() {
size (400, 400);
for (int i = 0; i < boxes.length; i++) {
boxes[i] = new Rectangle((int) random (width), (int) random (height),
(int) random (10,40), (int) random (5, 20));
void draw() {
for (int i = 0; i < boxes.length; i++) {
fill (random (255), random (255), random (255));
boxes[i].display();
