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## javax.swing.plaf.multi
Class MultiLookAndFeel

    java.lang.Object
      javax.swing.LookAndFeel
          javax.swing.plaf.multi.MultiLookAndFeel

    public class MultiLookAndFeel

extends LookAndFeel

A multiplexing look and feel that allows more than one UI to be associated with a component at the same time. The primary look and feel is called the default look and feel, and the other look and feels are called auxiliary.

For further information, see Using the Multiplexing Look and Feel.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the `java.beans` package. Please see `XMLEncoder`.

See Also:
  `UIManager.addAuxiliaryLookAndFeel(javax.swing.LookAndFeel)`, `javax.swing.plaf.multi`

Constructor Summary
`MultiLookAndFeel()`

Method Summary
`static ComponentUI` | `createUIs(ComponentUI mui, Vector uis, JComponent target)` Creates the `ComponentUI` objects required to present the `target` component, placing the objects in the `uis` vector and returning the `ComponentUI` object that best represents the component's UI.
`UIDefaults` | `getDefaults()` Creates, initializes, and returns the look and feel specific defaults.
`String` | `getDescription()` Returns a one-line description of this look and feel.
`String` | `getID()` Returns a string, suitable for use by applications/services, that identifies this look and feel.
`String` | `getName()` Returns a string, suitable for use in menus, that identifies this look and feel.
`boolean` | `isNativeLookAndFeel()` Returns `false`; this look and feel is not native to any platform.
`boolean` | `isSupportedLookAndFeel()` Returns `true`; every platform permits this look and feel.
`protected static ComponentUI[]` | `uisToArray(Vector uis)` Creates an array, populates it with UI objects from the passed-in vector, and returns the array.

Methods inherited from class javax.swing.LookAndFeel
`getDesktopPropertyValue, getDisabledIcon, getDisabledSelectedIcon, getLayoutStyle, getSupportsWindowDecorations, initialize, installBorder, installColors, installColorsAndFont, installProperty, loadKeyBindings, makeComponentInputMap, makeIcon, makeInputMap, makeKeyBindings, provideErrorFeedback, toString, uninitialize, uninstallBorder`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### MultiLookAndFeel

    public MultiLookAndFeel()

Method Detail

### getName

    public String getName()

  Returns a string, suitable for use in menus, that identifies this look and feel.

  Specified by:
    `getName` in class `LookAndFeel`
  Returns:
    a string such as "Multiplexing Look and Feel"

### getID

    public String getID()

  Returns a string, suitable for use by applications/services, that identifies this look and feel.

  Specified by:
    `getID` in class `LookAndFeel`
  Returns:
    "Multiplex"

### getDescription

    public String getDescription()

  Returns a one-line description of this look and feel.

  Specified by:
    `getDescription` in class `LookAndFeel`
  Returns:
    a descriptive string such as "Allows multiple UI instances per component instance"

### isNativeLookAndFeel

    public boolean isNativeLookAndFeel()

  Returns `false`; this look and feel is not native to any platform.

  Specified by:
    `isNativeLookAndFeel` in class `LookAndFeel`
  Returns:
    `false`

### isSupportedLookAndFeel

    public boolean isSupportedLookAndFeel()

  Returns `true`; every platform permits this look and feel.

  Specified by:
    `isSupportedLookAndFeel` in class `LookAndFeel`
  Returns:
    `true`
  See Also:
    `UIManager.setLookAndFeel(javax.swing.LookAndFeel)`

### getDefaults

    public UIDefaults getDefaults()

  Creates, initializes, and returns the look and feel specific defaults. For this look and feel, the defaults consist solely of mappings of UI class IDs (such as "ButtonUI") to `ComponentUI` class names (such as "javax.swing.plaf.multi.MultiButtonUI").

  Overrides:
    `getDefaults` in class `LookAndFeel`
  Returns:
    an initialized `UIDefaults` object
  See Also:
    `JComponent.getUIClassID()`

### createUIs

    public static ComponentUI createUIs(ComponentUI mui,
                                        Vector uis,
                                        JComponent target)

  Creates the `ComponentUI` objects required to present the `target` component, placing the objects in the `uis` vector and returning the `ComponentUI` object that best represents the component's UI. This method finds the `ComponentUI` objects by invoking `getDefaults().getUI(target)` on each default and auxiliary look and feel currently in use. The first UI object this method adds to the `uis` vector is for the default look and feel.

  This method is invoked by the `createUI` method of `MultiXxxxUI` classes.

  Parameters:
    `mui` - the `ComponentUI` object that represents the complete UI for the `target` component; this should be an instance of one of the `MultiXxxxUI` classes
    `uis` - a `Vector`; generally this is the `uis` field of the `mui` argument
    `target` - a component whose UI is represented by `mui`
  Returns:
    `mui` if the component has any auxiliary UI objects; otherwise, returns the UI object for the default look and feel or `null` if the default UI object couldn't be found
  See Also:
    `UIManager.getAuxiliaryLookAndFeels()`, `UIDefaults.getUI(javax.swing.JComponent)`, `MultiButtonUI.uis`, `MultiButtonUI.createUI(javax.swing.JComponent)`

### uisToArray

    protected static ComponentUI[] uisToArray(Vector uis)

  Creates an array, populates it with UI objects from the passed-in vector, and returns the array. If `uis` is null, this method returns an array with zero elements. If `uis` is an empty vector, this method returns `null`. A run-time error occurs if any objects in the `uis` vector are not of type `ComponentUI`.

  Parameters:
    `uis` - a vector containing `ComponentUI` objects
  Returns:
    an array equivalent to the passed-in vector

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