How to open multiple files using a File Chooser in JavaFX?

Using JavaFX file chooser, you can open files browse through them and save the files. The class javafx.stage.FileChooser represents a file chooser, you can open a file dialog open single or multiple files using this. You can create a file chooser in your application by instantiating this class.

Opening multiple files

The showOpenMultipleDialog() method displays an open dialog that allows you to choose multiple files and returns a list (of File type) containing the chosen files. This method returns null if you haven’t chosen any file.

To open multiple files using JavaFX −

• Instantiate the FileChooser class.

• Set the required properties.

• Invoke the showOpenMultipleDialog() method.

• Add the file chooser to a root node.

Example

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Menu;
import javafx.scene.control.MenuBar;
import javafx.scene.control.MenuItem;
import javafx.scene.image.ImageView;
import javafx.scene.paint.Color;
import javafx.stage.FileChooser;
import javafx.stage.Stage;
import javafx.stage.FileChooser.ExtensionFilter;
public class FileChooserOpeningMultipleFiles extends Application {
   public void start(Stage stage) {
      ImageView imgView = new ImageView("UIControls/multiple_files.png");
      imgView.setFitWidth(20);
      imgView.setFitHeight(20);
      Menu file = new Menu("File");
      MenuItem item = new MenuItem("Open Multiple Files", imgView);
      file.getItems().addAll(item);
      //Creating a File chooser
      FileChooser fileChooser = new FileChooser();
      fileChooser.setTitle("Open Multiple Files");
      fileChooser.getExtensionFilters().addAll(new ExtensionFilter("All Files", "*.*"));
      //Adding action on the menu item
      item.setOnAction(new EventHandler<ActionEvent>() {
         public void handle(ActionEvent event) {
            //Opening a dialog box
            fileChooser.showOpenMultipleDialog(stage);
      }});
      //Creating a menu bar and adding menu to it.
      MenuBar menuBar = new MenuBar(file);
      Group root = new Group(menuBar);
      Scene scene = new Scene(root, 595, 355, Color.BEIGE);
      stage.setTitle("File Chooser Example");
      stage.setScene(scene);
      stage.show();
   }
   public static void main(String args[]){
      launch(args);
   }
}

Output