// Learning Processing
  // Daniel Shiffman
  // http://www.learningprocessing.com
  
  // Example 23-1: Using java.util.Random instead of random()
  
  Random r;
  
  void setup() {
    size(200,200);
    // Declaring a Random object and calling the constructor as found at:
    // http://java.sun.com/j2se/1.4.2/ docs/api/java/util/Random.html
    r = new Random(); 
    frameRate(5);
  }
  
  void draw() {
    
    // Calling a function found at:
    // http://java.sun.com/j2se/1.4.2/docs/api/java/util/Random.html
    boolean trueorfalse = r.nextBoolean(); 
    if (trueorfalse) {
      background(0);
    } else {
      background(255);
    }
    
  }