java - What does the .FXML.bak file do in netbeans?

Question

When I create a JavaFx project in Netbeans, three files are generated: .FXML file, the main Class, the controller.

Later there's a fourth file that gets generated whose syntax seems to be completely the same as the orriginal FXML file, the .FXML.bak file. What does this file do?

Answer 1

它只是原始 FXML 文件的副本，当您在 FXML 文件中保存更改时，该文件作为某种备份创建。

.bak 是此类备份副本的常见扩展名。