sketch02_a

function setup() {
  createCanvas(900, 600);
  background(50, 100, 150);
  // drawing at rectangle, starting at x=100, y=100
  // uncomment rectMode(CENTER) if you want the x and y to be the center of the rectangle
  // rectMode(CENTER);
  rect(100, 100, 50, 50);
  // drawing an ellipse at the same location
  ellipse(100, 100, 50, 50)
  // drawing an ellipse with its center at the bottom right
  ellipse(width, height, 100, 100);
  // drawing an ellipse in the middle of the screen
  ellipse(width/2, height/2, 100, 100);
  // drawing an ellipse at a random location
  ellipse(random(width), random(height), 50,50);

}

function draw() {

}