public class HelloWorld
{
  public static void 
    main (String[] args) 
  {
    System.out.println ("Hello again, GitHub!");
  } // main(String[])
}

@@ -120,16 +120,57 @@
 Hub!%22);%0A
+    System.out.println (%22Hello, world%22);%0A
   %7D // m

Update HelloWorld.java