# Class CheckMenuItem

java.lang.Object
javafx.scene.control.MenuItem
javafx.scene.control.CheckMenuItem

All Implemented Interfaces:
  `Styleable, EventTarget`

public class CheckMenuItem extends MenuItem

A `MenuItem` that can be toggled between selected and unselected states. It is intended that CheckMenuItem be used in conjunction with the `Menu` or `ContextMenu` controls.

Creating and inserting a CheckMenuItem into a Menu is shown below.

    CheckMenuItem subsystem1 = new CheckMenuItem("Enabled");
    subsystem1.setOnAction(e -> System.out.println("subsystem1 #1 Enabled!"));

    Menu menu = new Menu("Subsystems");
    menu.getItems().add(subsystem1);
    MenuBar menuBar = new MenuBar(menu);

Of course, the approach shown above separates out the definition of the CheckMenuItem from the Menu, but this needn't be so.

To ascertain the current state of the CheckMenuItem, you should refer to the `selected` boolean. An example use case may be the following example:

    final checkMenuItem = new CheckMenuItem("Show Widget");
    subsystem1.setOnAction(e -> System.out.println("Show the widget!"));
    private final BooleanProperty widgetShowing();
    public final boolean isWidgetShowing() { return widgetShowing.get(); )
    public final void setWidgetShowing(boolean value) {
        widgetShowingProperty().set(value);
    }
    public final BooleanProperty widgetShowingProperty() {
        if (widgetShowing == null) {
            widgetShowing = new SimpleBooleanProperty(this, "widgetShowing", true);
        }
        return widgetShowing;
    }

    widgetShowing.bind(checkMenuItem.selected);

Typically a CheckMenuItem will be rendered such that, when selected, it shows a check (or tick) mark in the area normally reserved for the MenuItem graphic. Of course, this will vary depending on the skin and styling specified.

Since:
  JavaFX 2.0
See Also:
  - `Menu`
  - `MenuItem`
  - `RadioMenuItem`

- ## Property Summary

  Properties
  Type
  Property
  Description
  `final BooleanProperty`
  `selected`
  Represents the current state of this CheckMenuItem.

  ### Properties declared in class MenuItem

  `accelerator, disable, graphic, id, mnemonicParsing, onAction, onMenuValidation, parentMenu, parentPopup, style, text, visible`

- ## Field Summary

  ### Fields declared in class MenuItem

  `MENU_VALIDATION_EVENT`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `CheckMenuItem()`
  Creates an empty `CheckMenuItem`.
  `CheckMenuItem(String text)`
  Constructs a CheckMenuItem and sets the display text with the specified text.
  `CheckMenuItem(String text, Node graphic)`
  Constructs a CheckMenuItem and sets the display text with the specified text and sets the graphic `Node` to the given node.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `final boolean`
  `isSelected()`
  Gets the value of the `selected` property.
  `final BooleanProperty`
  `selectedProperty()`
  Represents the current state of this CheckMenuItem.
  `final void`
  `setSelected(boolean value)`
  Sets the value of the `selected` property.

  ### Methods declared in class MenuItem

  `acceleratorProperty, buildEventDispatchChain, disableProperty, fire, getAccelerator, getCssMetaData, getGraphic, getId, getOnAction, getOnMenuValidation, getParentMenu, getParentPopup, getProperties, getPseudoClassStates, getStyle, getStyleableParent, getStyleClass, getText, getTypeSelector, getUserData, graphicProperty, idProperty, isDisable, isMnemonicParsing, isVisible, mnemonicParsingProperty, onActionProperty, onMenuValidationProperty, parentMenuProperty, parentPopupProperty, setAccelerator, setDisable, setGraphic, setId, setMnemonicParsing, setOnAction, setOnMenuValidation, setParentMenu, setParentPopup, setStyle, setText, setUserData, setVisible, styleProperty, textProperty, visibleProperty`

  ### Methods declared in class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

  ### Methods declared in interface EventTarget

  `addEventFilter, addEventHandler, removeEventFilter, removeEventHandler`

  ### Methods declared in interface Styleable

  `getStyleableNode`

- ## Property Details

  - ### selected

    public final BooleanProperty selectedProperty
    Represents the current state of this CheckMenuItem. Bind to this to be informed whenever the user interacts with the CheckMenuItem (and causes the selected state to be toggled).
    Default value:
      false
    See Also:
      - `isSelected()`
      - `setSelected(boolean)`
      - `selectedProperty()`

- ## Constructor Details

  - ### CheckMenuItem

    public CheckMenuItem()
    Creates an empty `CheckMenuItem`.

  - ### CheckMenuItem

    public CheckMenuItem(String text)
    Constructs a CheckMenuItem and sets the display text with the specified text.
    Parameters:
      `text` - the display text

  - ### CheckMenuItem

    public CheckMenuItem(String text, Node graphic)
    Constructs a CheckMenuItem and sets the display text with the specified text and sets the graphic `Node` to the given node.
    Parameters:
      `text` - the display text
      `graphic` - the graphic Node

- ## Method Details

  - ### setSelected

    public final void setSelected(boolean value)
    Sets the value of the `selected` property.
    Property description:
      Represents the current state of this CheckMenuItem. Bind to this to be informed whenever the user interacts with the CheckMenuItem (and causes the selected state to be toggled).
    Default value:
      false
    Parameters:
      `value` - the value for the `selected` property
    See Also:
      - `isSelected()`
      - `selectedProperty()`

  - ### isSelected

    public final boolean isSelected()
    Gets the value of the `selected` property.
    Property description:
      Represents the current state of this CheckMenuItem. Bind to this to be informed whenever the user interacts with the CheckMenuItem (and causes the selected state to be toggled).
    Default value:
      false
    Returns:
      the value of the `selected` property
    See Also:
      - `setSelected(boolean)`
      - `selectedProperty()`

  - ### selectedProperty

    public final BooleanProperty selectedProperty()
    Represents the current state of this CheckMenuItem. Bind to this to be informed whenever the user interacts with the CheckMenuItem (and causes the selected state to be toggled).
    Default value:
      false
    Returns:
      the `selected` property
    See Also:
      - `isSelected()`
      - `setSelected(boolean)`