JavaFX Fahrenheit to Celsius Converter in FXML

JavaFX Fahrenheit to Celsius Example
JavaFX Fahrenheit to Celsius example using FXML to layout the Scene on the Stage.

JavaFX is easy once you get the hang of it, but for new programmers that requires plenty of examples. More experienced programmers will find one or two examples are enough to master most of JavaFX, so a lot of web sites only put one or two examples up—enough for experienced programmers, but not nearly enough for newer programmers.

In this post, I present the classic temperature converter example modified to use JavaFX. This example uses basic MVC/MVP design. If you want to see this same JavaFX tutorial written in pure Java, look for my other tutorial on this site. It will be the one mentioning pure Java instead of FXML.

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What is JavaFX?

JavaFX is a set of software APIs and tools that delivers desktop applications and rich internet applications (RIAs) that can run most anywhere Java runs. JavaFX applications run on Windows, MacOS, iOS, Android, Linux, and many other operating systems. JavaFX replaces Swing and the older AWT as Java SE’s GUI. Oracle is actively improving JavaFX, and likely will for many years to come.

That’s the simple version of what JavaFX is, but not a complete one. After reading the definition of JavaFX, you might still find yourself scratching your head and asking, What is JavaFX?

Obviously, this whole site is dedicated to answering that one question.

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Drawing Squares and Circles in JavaFX

JavaFX Shapes
Drawing shapes in JavaFX is easy.

JavaFX is all about graphics and drawing. Sure JavaFX can do great layouts, but if you need to visualize results, add images to layouts, or display data, JavaFX has all the tools you’ll need. Even games are written using JavaFX.

If you don’t know where to start learning JavaFX graphics capabilities, start with this tutorial. This tutorial explains how to draw JavaFX circles and squares after laying out your JavaFX UI using Scene Builder. It may not be glamorous, but it is a beginning. Continue reading “Drawing Squares and Circles in JavaFX”