How to Create a GUI Calculator in Java (Netbeans)

In this tutorial we'll build a GUI calculator in Netbeans using Java programming language
source code for the project

[dabinoitconsult]

You have skipped of the detailed steps...e.g. you didn't show event handling of CE and CA, the JavaScript model isn't working.

[petershuker]

nashorn is depreciated, better to add javaluator


DoubleEvaluator evaluator = new DoubleEvaluator();
Double result =
textArea.setText(""+result);

much easier and it works