Module java.desktop
Package javax.swing.plaf.basic

## Class BasicMenuBarUI

- java.lang.Object
- - javax.swing.plaf.ComponentUI
  - - javax.swing.plaf.MenuBarUI
    - - javax.swing.plaf.basic.BasicMenuBarUI

- Direct Known Subclasses:
    `MetalMenuBarUI`, `SynthMenuBarUI`

      public class BasicMenuBarUI
      extends MenuBarUI

  A default L&F implementation of MenuBarUI. This implementation is a "combined" view/controller.

- - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `protected ChangeListener` | `changeListener` | The instance of `ChangeListener`.
    `protected ContainerListener` | `containerListener` | The instance of `ContainerListener`.
    `protected JMenuBar` | `menuBar` | The instance of `JMenuBar`.

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `BasicMenuBarUI()` |

  - ### Method Summary

    Modifier and Type | Method | Description
    --- | --- | ---
    `protected ChangeListener` | `createChangeListener()` | Returns an instance of `ChangeListener`.
    `protected ContainerListener` | `createContainerListener()` | Returns an instance of `ContainerListener`.
    `static ComponentUI` | `createUI​(JComponent x)` | Returns a new instance of `BasicMenuBarUI`.
    `protected void` | `installDefaults()` | Installs default properties.
    `protected void` | `installKeyboardActions()` | Registers keyboard actions.
    `protected void` | `installListeners()` | Registers listeners.
    `protected void` | `uninstallDefaults()` | Uninstalls default properties.
    `protected void` | `uninstallKeyboardActions()` | Unregisters keyboard actions.
    `protected void` | `uninstallListeners()` | Unregisters listeners.

    - ### Methods declared in class javax.swing.plaf.ComponentUI

      `contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, installUI, paint, uninstallUI, update`

    - ### Methods declared in class java.lang.Object

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

- - ### Field Detail

    - #### menuBar

          protected JMenuBar menuBar

      The instance of `JMenuBar`.

    - #### containerListener

          protected ContainerListener containerListener

      The instance of `ContainerListener`.

    - #### changeListener

          protected ChangeListener changeListener

      The instance of `ChangeListener`.

  - ### Constructor Detail

    - #### BasicMenuBarUI

          public BasicMenuBarUI()

  - ### Method Detail

    - #### createUI

          public static ComponentUI createUI​(JComponent x)

      Returns a new instance of `BasicMenuBarUI`.
      Parameters:
        `x` - a component
      Returns:
        a new instance of `BasicMenuBarUI`

    - #### installDefaults

          protected void installDefaults()

      Installs default properties.

    - #### installListeners

          protected void installListeners()

      Registers listeners.

    - #### installKeyboardActions

          protected void installKeyboardActions()

      Registers keyboard actions.

    - #### uninstallDefaults

          protected void uninstallDefaults()

      Uninstalls default properties.

    - #### uninstallListeners

          protected void uninstallListeners()

      Unregisters listeners.

    - #### uninstallKeyboardActions

          protected void uninstallKeyboardActions()

      Unregisters keyboard actions.

    - #### createContainerListener

          protected ContainerListener createContainerListener()

      Returns an instance of `ContainerListener`.
      Returns:
        an instance of `ContainerListener`

    - #### createChangeListener

          protected ChangeListener createChangeListener()

      Returns an instance of `ChangeListener`.
      Returns:
        an instance of `ChangeListener`