Java How to Program, Early Objects, 11th Edition

...  if (file != null) {
39             analyzePath(file.toPath()); 
40          }
41          else {
42             textArea.setText("Select file or directory");
43          }
44       }
45
46       // handles selectDirectoryButton's events
47       @FXML
48       private void selectDirectoryButtonPressed(ActionEvent e) {
49          // configure dialog allowing selection of a directory
50          DirectoryChooser directoryChooser = new DirectoryChooser();
51          directoryChooser.setTitle("Select Directory");
52
53          // display folder from which the app was launched
54          directoryChooser.setInitialDirectory(new File("."));
55
56          // display the FileChooser
57          File file = directoryChooser.showDialog(
58             borderPane.getScene().getWindow());
59
60          // process selected Path or display a message
61          if (file != null) {
62             analyzePath(file.toPath());
63