java/examples/Basics/Structure/NoLoop/applet/NoLoop.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 NoLoop extends PApplet {
+
+/**
+ * No Loop. 
+ * 
+ * The noLoop() function causes draw() to only
+ * execute once. Without calling noLoop(), draw()
+ * executed continually. 
+ */
+
+// The statements in the setup() function 
+// execute once when the program begins
+public void setup() 
+{
+  size(200, 200);  // Size should be the first statement
+  stroke(255);     // Set line drawing color to white
+  frameRate(30);
+  noLoop();
+}
+
+float y = 100;
+
+// The statements in draw() are executed until the 
+// program is stopped. Each statement is executed in 
+// sequence and after the last line is read, the first 
+// line is executed again.
+public void draw() 
+{ 
+  background(0);   // Set the background to black
+  y = y - 1; 
+  if (y < 0) { y = height; } 
+  line(0, y, width, y);  
+} 
+
+
+
+  static public void main(String args[]) {
+    PApplet.main(new String[] { "NoLoop" });
+  }
+}