java/examples/Basics/Math/DoubleRandom/applet/DoubleRandom.java

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+import processing.core.*; 
+
+import java.applet.*; 
+import java.awt.*; 
+import java.awt.image.*; 
+import java.awt.event.*; 
+import java.io.*; 
+import java.net.*; 
+import java.text.*; 
+import java.util.*; 
+import java.util.zip.*; 
+import java.util.regex.*; 
+
+public class DoubleRandom extends PApplet {
+  public void setup() {/**
+ * Double Random 
+ * by Ira Greenberg.  
+ * 
+ * Using 2 random() calls the and point() function 
+ * to create an irregular sawtooth line.
+ */
+
+size(200, 200);
+background(0);
+int totalPts = 300;
+float steps = totalPts+1;
+stroke(255);
+float rand = 0;
+
+for  (int i=1; i< steps; i++){
+  point( (width/steps) * i, (height/2) + random(-rand, rand) );
+  rand += random(-5, 5);
+}
+
+
+  noLoop();
+} 
+  static public void main(String args[]) {
+    PApplet.main(new String[] { "DoubleRandom" });
+  }
+}