i think i really got it this time, nature of code in

java/examples/Books/Nature of Code/introduction/NOC_I_2_RandomDistribution/NOC_I_2_RandomDistribution.pde

@@ -0,0 +1,26 @@
+// An array to keep track of how often random numbers are picked
+float[] randomCounts;
+
+void setup() {
+  size(800,200);
+  randomCounts = new float[20];
+}
+
+void draw() {
+  background(255);
+  
+  // Pick a random number and increase the count
+  int index = int(random(randomCounts.length));
+  randomCounts[index]++;
+  
+  // Draw a rectangle to graph results
+  stroke(0);
+  strokeWeight(2);
+  fill(127);
+  
+  int w = width/randomCounts.length;
+  
+  for (int x = 0; x < randomCounts.length; x++) {
+    rect(x*w,height-randomCounts[x],w-1,randomCounts[x]);
+  } 
+}