JavaFX | HBox Class

07 Sep, 2018
HBox is a part of JavaFX. HBox lays out its children in form of horizontal columns. If the HBox has a border and/or padding set, then the contents will be layed out within those insets. HBox class extends Pane class.
Constructors of the class:
HBox(): Creates an HBox object with no nodes.
HBox(double s): Creates an HBox with spacing in between nodes.
Commonly Used Methods:
Below programs illustrate the use of HBox class:
Java Program to create a HBox and add it to the stage: In this program we will create a HBox named hbox. Now create a label and add it to the hbox. We will also create some buttons and add them to the HBox using the getChildren().add() function. Now create a scene and add the hbox to the scene and add the scene to the stage and call show() function to display the final results.// Java Program to create a HBox// and add it to the stageimport javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.*;import javafx.scene.layout.*;import javafx.stage.Stage;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.canvas.*;import javafx.scene.web.*;import javafx.scene.Group;  public class HBOX_1 extends Application {      // launch the application    public void start(Stage stage)    {          try {              // set title for the stage            stage.setTitle("HBox");              // create a HBox            HBox hbox = new HBox();              // create a label            Label label = new Label("this is HBox example");              // add label to hbox            hbox.getChildren().add(label);              // add buttons to HBox            for (int i = 0; i < 10; i++)             {                hbox.getChildren().add(new Button("Button "                                            + (int)(i + 1)));            }              // create a scene            Scene scene = new Scene(hbox, 800, 300);              // 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:Java Program to create a HBox, add spaces between its elements and add it to the stage: In this program we will create a HBox named hbox. Set the spacing by passing a double value of space as an argument to the constructor. Now create a label and add it to the hbox. To add some buttons to the HBox use the getChildren().add() function. Finally, create a scene and add the hbox to the scene and add the scene to the stage and call show() function to display the final results.// Java Program to create a HBox, add// spaces between its elements and add// it to the stageimport javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.*;import javafx.scene.layout.*;import javafx.stage.Stage;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.canvas.*;import javafx.scene.web.*;import javafx.scene.Group;  public class HBOX_2 extends Application {      // launch the application    public void start(Stage stage)    {          try {              // set title for the stage            stage.setTitle("HBox");              // create a HBox            HBox hbox = new HBox(10);              // create a label            Label label = new Label("this is HBox example");              // add label to hbox            hbox.getChildren().add(label);              // add buttons to HBox            for (int i = 0; i < 5; i++)             {                hbox.getChildren().add(new Button("Button "                                           + (int)(i + 1)));            }              // create a scene            Scene scene = new Scene(hbox, 800, 300);              // 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:Java Program to create a HBox, add spaces between its elements, set an alignment and add it to the stage: In this program we will create a HBox named hbox. Set the spacing by passing a double value of space as an argument to the constructor. Set the alignment of the HBox using the setAlignment() function. Then create a label and add it to the hbox. Add some buttons to the HBox using the getChildren().add() function. Finally, create a scene and add the hbox to the scene and add the scene to the stage and call show() function to display the final results.// Java Program to create a HBox, add spaces// between its elements, set an alignment// and add it to the stageimport javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.*;import javafx.scene.layout.*;import javafx.stage.Stage;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.canvas.*;import javafx.scene.web.*;import javafx.scene.Group;import javafx.geometry.*;  public class HBOX_3 extends Application {      // launch the application    public void start(Stage stage)    {          try {              // set title for the stage            stage.setTitle("HBox");              // create a HBox            HBox hbox = new HBox(10);              // setAlignment            hbox.setAlignment(Pos.CENTER);              // create a label            Label label = new Label("this is HBox example");              // add label to hbox            hbox.getChildren().add(label);              // add buttons to HBox            for (int i = 0; i < 5; i++)             {                hbox.getChildren().add(new Button("Button "                                           + (int)(i + 1)));            }              // create a scene            Scene scene = new Scene(hbox, 800, 300);              // 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:
Java Program to create a HBox and add it to the stage: In this program we will create a HBox named hbox. Now create a label and add it to the hbox. We will also create some buttons and add them to the HBox using the getChildren().add() function. Now create a scene and add the hbox to the scene and add the scene to the stage and call show() function to display the final results.// Java Program to create a HBox// and add it to the stageimport javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.*;import javafx.scene.layout.*;import javafx.stage.Stage;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.canvas.*;import javafx.scene.web.*;import javafx.scene.Group;  public class HBOX_1 extends Application {      // launch the application    public void start(Stage stage)    {          try {              // set title for the stage            stage.setTitle("HBox");              // create a HBox            HBox hbox = new HBox();              // create a label            Label label = new Label("this is HBox example");              // add label to hbox            hbox.getChildren().add(label);              // add buttons to HBox            for (int i = 0; i < 10; i++)             {                hbox.getChildren().add(new Button("Button "                                            + (int)(i + 1)));            }              // create a scene            Scene scene = new Scene(hbox, 800, 300);              // 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:
// Java Program to create a HBox// and add it to the stageimport javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.*;import javafx.scene.layout.*;import javafx.stage.Stage;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.canvas.*;import javafx.scene.web.*;import javafx.scene.Group;  public class HBOX_1 extends Application {      // launch the application    public void start(Stage stage)    {          try {              // set title for the stage            stage.setTitle("HBox");              // create a HBox            HBox hbox = new HBox();              // create a label            Label label = new Label("this is HBox example");              // add label to hbox            hbox.getChildren().add(label);              // add buttons to HBox            for (int i = 0; i < 10; i++)             {                hbox.getChildren().add(new Button("Button "                                            + (int)(i + 1)));            }              // create a scene            Scene scene = new Scene(hbox, 800, 300);              // 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:
Java Program to create a HBox, add spaces between its elements and add it to the stage: In this program we will create a HBox named hbox. Set the spacing by passing a double value of space as an argument to the constructor. Now create a label and add it to the hbox. To add some buttons to the HBox use the getChildren().add() function. Finally, create a scene and add the hbox to the scene and add the scene to the stage and call show() function to display the final results.// Java Program to create a HBox, add// spaces between its elements and add// it to the stageimport javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.*;import javafx.scene.layout.*;import javafx.stage.Stage;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.canvas.*;import javafx.scene.web.*;import javafx.scene.Group;  public class HBOX_2 extends Application {      // launch the application    public void start(Stage stage)    {          try {              // set title for the stage            stage.setTitle("HBox");              // create a HBox            HBox hbox = new HBox(10);              // create a label            Label label = new Label("this is HBox example");              // add label to hbox            hbox.getChildren().add(label);              // add buttons to HBox            for (int i = 0; i < 5; i++)             {                hbox.getChildren().add(new Button("Button "                                           + (int)(i + 1)));            }              // create a scene            Scene scene = new Scene(hbox, 800, 300);              // 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:
// Java Program to create a HBox, add// spaces between its elements and add// it to the stageimport javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.*;import javafx.scene.layout.*;import javafx.stage.Stage;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.canvas.*;import javafx.scene.web.*;import javafx.scene.Group;  public class HBOX_2 extends Application {      // launch the application    public void start(Stage stage)    {          try {              // set title for the stage            stage.setTitle("HBox");              // create a HBox            HBox hbox = new HBox(10);              // create a label            Label label = new Label("this is HBox example");              // add label to hbox            hbox.getChildren().add(label);              // add buttons to HBox            for (int i = 0; i < 5; i++)             {                hbox.getChildren().add(new Button("Button "                                           + (int)(i + 1)));            }              // create a scene            Scene scene = new Scene(hbox, 800, 300);              // 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:
Java Program to create a HBox, add spaces between its elements, set an alignment and add it to the stage: In this program we will create a HBox named hbox. Set the spacing by passing a double value of space as an argument to the constructor. Set the alignment of the HBox using the setAlignment() function. Then create a label and add it to the hbox. Add some buttons to the HBox using the getChildren().add() function. Finally, create a scene and add the hbox to the scene and add the scene to the stage and call show() function to display the final results.// Java Program to create a HBox, add spaces// between its elements, set an alignment// and add it to the stageimport javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.*;import javafx.scene.layout.*;import javafx.stage.Stage;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.canvas.*;import javafx.scene.web.*;import javafx.scene.Group;import javafx.geometry.*;  public class HBOX_3 extends Application {      // launch the application    public void start(Stage stage)    {          try {              // set title for the stage            stage.setTitle("HBox");              // create a HBox            HBox hbox = new HBox(10);              // setAlignment            hbox.setAlignment(Pos.CENTER);              // create a label            Label label = new Label("this is HBox example");              // add label to hbox            hbox.getChildren().add(label);              // add buttons to HBox            for (int i = 0; i < 5; i++)             {                hbox.getChildren().add(new Button("Button "                                           + (int)(i + 1)));            }              // create a scene            Scene scene = new Scene(hbox, 800, 300);              // 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:
// Java Program to create a HBox, add spaces// between its elements, set an alignment// and add it to the stageimport javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.*;import javafx.scene.layout.*;import javafx.stage.Stage;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.canvas.*;import javafx.scene.web.*;import javafx.scene.Group;import javafx.geometry.*;  public class HBOX_3 extends Application {      // launch the application    public void start(Stage stage)    {          try {              // set title for the stage            stage.setTitle("HBox");              // create a HBox            HBox hbox = new HBox(10);              // setAlignment            hbox.setAlignment(Pos.CENTER);              // create a label            Label label = new Label("this is HBox example");              // add label to hbox            hbox.getChildren().add(label);              // add buttons to HBox            for (int i = 0; i < 5; i++)             {                hbox.getChildren().add(new Button("Button "                                           + (int)(i + 1)));            }              // create a scene            Scene scene = new Scene(hbox, 800, 300);              // 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/javafx/2/api/javafx/scene/layout/HBox.html
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