JavaFX | TabPane Class

TabPane class is a part of JavaFX. TabPane allows switching between several tabs. TabPane acts as a container of tabs. The positions of the tabs can be specified using the setSide() function. when the tabs do not fit in the TabPane, a menu button appears at the upper right corner of TabPane which displays all the tabs of the Tabpane.

Constructors of the class:

  1. TabPane(): Creates a new TabPane with no tabs.
  2. TabPane(Tab… t): Creates a new TabPane with specified tabs.

Commonly Used Methods:



Method Explanation
getSide() Returns the current position of tabs on the TabPane
getTabs() Returns the tabs of the TabPane.
setSide(Side v) The position to place the tabs in this TabPane.
setSelectionModel(SingleSelectionModel v) Sets the model used for tab selection.
getSelectionModel() Returns the selection model for tab selection.
getTabMaxHeight() Returns the max height of the tab in TabPane.
getTabMinHeight() Returns the min height of the tab in TabPane.
getTabMaxWidth() Returns the max Width of the tab in TabPane.
getTabMinWidth() Returns the min Width of the tab in TabPane.
setTabMaxHeight(double v) Sets the max height of the tab in TabPane.
setTabMinHeight(double v) Sets the min height of the tab in TabPane.
setTabMaxWidth(double v) Sets the max width of the tab in TabPane.
setTabMinWidth(double v) Sets the min width of the tab in TabPane.

Below programs illustrate the use of TabPane class:

  1. Java program to create multiple tabs and add it to the TabPane: In this program we will create a Tabpane named tabpane. To add multiple tabs we will use a for loop and then add tabs to the tabpane. Create a Tab named tab. We will also create a Label named label. We will add the label to the tab by using the function setContent(). The title of the tab will be passed as arguments. Now create a TabPane named tabpane and add the tab to the tabpane. After that add the tabpane to the scene and add the scene to the stage and display the stage using the show() function.
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    // Java program to create multiple tabs 
    // and add it to the TabPane
    import javafx.application.Application;
    import javafx.scene.Scene;
    import javafx.scene.layout.*;
    import javafx.stage.Stage;
    import javafx.scene.Group;
    import javafx.scene.control.*;
      
    public class TabPane_1 extends Application {
      
        // launch the application
        public void start(Stage stage)
        {
      
            // set title for the stage
            stage.setTitle("Creating Tab");
      
            // create a tabpane
            TabPane tabpane = new TabPane();
      
            // create multiple tabs
            for (int i = 0; i < 10; i++) {
      
                // create Tab
                Tab tab = new Tab("Tab_" + (int)(i + 1));
      
                // create a label
                Label label = new Label("This is Tab: " + (int)(i + 1));
      
                // add label to the tab
                tab.setContent(label);
      
                // add tab
                tabpane.getTabs().add(tab);
            }
      
            // create a scene
            Scene scene = new Scene(tabpane, 600, 500);
      
            // set the scene
            stage.setScene(scene);
      
            stage.show();
        }
      
        // Main Method
        public static void main(String args[])
        {
      
            // launch the application
            launch(args);
        }
    }

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    Output:


  2. Java program to create multiple tabs and add it to the TabPane and also create a tab which on selected will create new tabs: In this program we will create a Tabpane named tabpane. We will add multiple tabs to the tabpane. To add multiple tabs we will use a for loop. We will create a Tab named tab. Now create a Label named label. We will add a label to the tab by using the function setContent(). We will also create a tab named newtab. When it is selected then it will create a new tab. Add event handler to the tab by using setOnSelectionChanged() function. The event handler will create a new tab and add it before the new tab in tabpane using getTabs().add() function and select the last tab using the getSelectionModel().select() function. The title of the tab will be passed as arguments. We will create a TabPane named tabpane and add the tab to the tabpane and add the tabpane to the scene and scene to the stage. Display the stage using the show() function.
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    // Java program to create multiple tabs and
    // add it to the tabPane and also create a 
    // tab which on selected will create new tabs
    import javafx.application.Application;
    import javafx.scene.Scene;
    import javafx.scene.layout.*;
    import javafx.stage.Stage;
    import javafx.scene.Group;
    import javafx.scene.control.*;
    import javafx.event.Event;
    import javafx.event.EventHandler;
      
    public class TabPane_2 extends Application {
      
    // counter of tabs
    int counter = 0;
      
    // launch the application
    public void start(Stage stage)
    {
      
        // set title for the stage
        stage.setTitle("Creating Tab");
      
        // create a tabpane
        TabPane tabpane = new TabPane();
      
        for (int i = 0; i < 5; i++) {
      
            // create Tab
            Tab tab = new Tab("Tab_" + (int)(counter + 1));
      
            // create a label
            Label label = new Label("This is Tab: " 
                            + (int)(counter + 1));
      
            counter++;
      
            // add label to the tab
            tab.setContent(label);
      
            // add tab
            tabpane.getTabs().add(tab);
        }
      
        // create a tab which
        // when pressed creates a new tab
        Tab newtab = new Tab();
      
        // action event
        EventHandler<Event> event = 
        new EventHandler<Event>() {
      
            public void handle(Event e)
            {
                if (newtab.isSelected()) 
                {
      
                    // create Tab
                    Tab tab = new Tab("Tab_" + (int)(counter + 1));
      
                    // create a label
                    Label label = new Label("This is Tab: " 
                                     + (int)(counter + 1));
      
                    counter++;
      
                    // add label to the tab
                    tab.setContent(label);
      
                    // add tab
                    tabpane.getTabs().add(
                            tabpane.getTabs().size() - 1, tab);
      
                    // select the last tab
                    tabpane.getSelectionModel().select(
                            tabpane.getTabs().size() - 2);
                }
            }
        };
      
        // set event handler to the tab
        newtab.setOnSelectionChanged(event);
      
        // add newtab
        tabpane.getTabs().add(newtab);
      
        // create a scene
        Scene scene = new Scene(tabpane, 600, 500);
      
        // set the scene
        stage.setScene(scene);
      
        stage.show();
    }
      
    // Main Method
    public static void main(String args[])
    {
      
        // launch the application
        launch(args);
    }
    }

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    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/scene/control/TabPane.html



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