JavaFX | DirectoryChooser Class

DirectoryChooser class is a part of JavaFX. DirectoryChooser class shows a directory chooser dialog which allows the user to select a particular directory. Opening a directory dialog may always result in a no-op i.e. the null file being returned. DirectoryChooser class inherits Object class.

Constructor of the class:

• DirectoryChooser() : Creates a new object of directory chooser.

Commonly Used Methods:

Below programs illustrate the use of the DirectoryChooser Class:

1. Java Program to create DirectoryChooser and add it to the stage: In this program we will create a directory chooser named dir_chooser. Create a Label named label and a Button named button. Create an EventHandler to handle the events when the button pressed. When the button pressed, a directory chooser dialog appears and the selected directory is shown as text in the label. Add the label and the button to Vbox and add the VBox to the Scene and add the scene to the stage, and call the show() function to display the final results.

   
   

   
   
   

   // Java Program to create DirectoryChooser // and add it to the stage import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.*; import javafx.scene.layout.*; import javafx.stage.Stage; import javafx.geometry.*; import javafx.scene.paint.*; import javafx.scene.canvas.*; import javafx.scene.text.*; import javafx.scene.Group; import javafx.scene.shape.*; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.collections.*; import java.io.*; import javafx.stage.DirectoryChooser;    public class DirectoryChooser_1 extends Application {        // launch the application     public void start(Stage stage)     {            try {                // set title for the stage             stage.setTitle("DirectoryChooser");                // create a Directory chooser             DirectoryChooser dir_chooser = new DirectoryChooser();                // create a Label             Label label = new Label("no files selected");                // create a Button             Button button = new Button("Show");                // create an Event Handler             EventHandler<ActionEvent> event =              new EventHandler<ActionEvent>() {                    public void handle(ActionEvent e)                 {                        // get the file selected                     File file = dir_chooser.showDialog(stage);                        if (file != null) {                         label.setText(file.getAbsolutePath() + "  selected");                     }                 }             };                button.setOnAction(event);                // create a VBox             VBox vbox = new VBox(30, label, button);                // set Alignment             vbox.setAlignment(Pos.CENTER);                // create a scene             Scene scene = new Scene(vbox, 800, 500);                // set the scene             stage.setScene(scene);                stage.show();         }            catch (Exception e) {                System.out.println(e.getMessage());         }     }        // Main Method     public static void main(String args[])     {            // launch the application         launch(args);     } }

   Output:

   

   

2. Java Program to create DirectoryChooser, set title, initial directory and add it to the stage: In this program we will create a directory chooser named dir_chooser. Create a Label named label and a Button named button. Set the title and initial directory of directory chooser using the setTitle() and setInitialDirectory() function. We will create a EventHandler to handle the events when the button is pressed. When the button is pressed a directory chooser dialog appears and the selected directory is shown as text in the label. Add the label and the button to Vbox and add the VBox to the Scene and add the scene to the stage, and call the show() function to display the final results.

   
   

   
   
   

   // Java Program to create DirectoryChooser, // set title, initial directory // and add it to the stage import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.*; import javafx.scene.layout.*; import javafx.stage.Stage; import javafx.geometry.*; import javafx.scene.paint.*; import javafx.scene.canvas.*; import javafx.scene.text.*; import javafx.scene.Group; import javafx.scene.shape.*; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.collections.*; import java.io.*; import javafx.stage.DirectoryChooser;    public class DirectoryChooser_2 extends Application {        // launch the application     public void start(Stage stage)     {            try {                // set title for the stage             stage.setTitle("DirectoryChooser");                // create a Directory chooser             DirectoryChooser dir_chooser =                     new DirectoryChooser();                // set title             dir_chooser.setTitle("Select directory");                // set initial directory             dir_chooser.setInitialDirectory(new File("e:\\"));                // create a Label             Label label = new Label("no files selected");                // create a Button             Button button = new Button("Show");                // create an Event Handler             EventHandler<ActionEvent> event =             new EventHandler<ActionEvent>() {                    public void handle(ActionEvent e)                 {                     // get the file selected                     File file = dir_chooser.showDialog(stage);                        if (file != null) {                         label.setText(file.getAbsolutePath() + "  selected");                     }                 }             };                button.setOnAction(event);                // create a VBox             VBox vbox = new VBox(30, label, button);                // set Alignment             vbox.setAlignment(Pos.CENTER);                // create a scene             Scene scene = new Scene(vbox, 800, 500);                // set the scene             stage.setScene(scene);                stage.show();         }            catch (Exception e) {                System.out.println(e.getMessage());         }     }        // Main Method     public static void main(String args[])     {            // launch the application         launch(args);     } }

   Output:

   

   

Note: The above programs might not run in an online IDE please use an offline compiler.

Reference: https://docs.oracle.com/javase/8/javafx/api/javafx/stage/DirectoryChooser.html