title: How to sort items in listbox
body: <p>I'm a newbie at programming and I want some help from sorting items in listbox
  I have a code for looping which add items on listbox1 what I want is to sort the items into descending order into the other listbox.
  For example the output of listbox 1 is 3,6,9 until 39 the sorted descending list will go to listbox2.</p>
  
  <pre><code>int thingsforlist;
  do{
       listbox.item.add(thingsforlist); 
       thingsforlist = thingforlist+3;
    }
  while (thingsforlist&lt;=39);
  </code></pre>