diff -r 000000000000 -r b577ee7fcf67 samples/conditionaluseofapi/src/conditionaluseofapi/StringBuilderAdd15.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/samples/conditionaluseofapi/src/conditionaluseofapi/StringBuilderAdd15.java	Sat Jun 14 09:50:50 2008 +0200
@@ -0,0 +1,26 @@
+package conditionaluseofapi;
+
+/** Implementation for string concatention using Java 5 only.
+ * 
+ * StringBuilder is supposed to be faster than StringBuffer as it
+ * is not synchronized and as such it is does not waste time with
+ * synchronization when its methods are called. 
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+final class StringBuilderAdd15 implements AddString {
+    
+    private StringBuilder sb = new StringBuilder();
+
+    public void addString(String msg) {
+        sb.append(msg);
+    }
+
+    public String getMessage() {
+        return sb.toString();
+    }
+
+    public String toString() {
+        return "New Shiny and Fast Java 5 Implementation";
+    }
+}