Units Converter A few years ago, I developed a Windows-based units-conversion application that converts between different kinds of units (such as kilograms and pounds). More recently, I developed a JavaFX 1.2 version of this application, to reinforce my grasp of various control classes in the javafx.scene.control package, and to experiment in adapting a desktop-based user interface (UI) to browser and mobile contexts. This article presents three versions of my units-conversion application. After presenting the first version and revealing three listview control-oriented annoyances, the article presents the second version, which fixes one of these annoyances (and reveals another), and which adapts its UI to various contexts. Lastly, the article presents the third version, which fixes the remaining annoyances by updating the listview control. I created these versions via NetBeans IDE 6.5.1 with JavaFX 1.2 UnitsConverter1 , UnitsConverter2 , and