Module java.desktop
Package javax.swing.plaf

## Class OptionPaneUI

- java.lang.Object
- - javax.swing.plaf.ComponentUI
  - - javax.swing.plaf.OptionPaneUI

- Direct Known Subclasses:
    `BasicOptionPaneUI`, `MultiOptionPaneUI`

      public abstract class OptionPaneUI
      extends ComponentUI

  Pluggable look and feel interface for JOptionPane.

- - ### Constructor Summary

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

  - ### Method Summary

    Modifier and Type | Method | Description
    --- | --- | ---
    `abstract boolean` | `containsCustomComponents​(JOptionPane op)` | Returns true if the user has supplied instances of Component for either the options or message.
    `abstract void` | `selectInitialValue​(JOptionPane op)` | Requests the component representing the default value to have focus.

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

      `contains, createUI, 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`

- - ### Constructor Detail

    - #### OptionPaneUI

          public OptionPaneUI()

  - ### Method Detail

    - #### selectInitialValue

          public abstract void selectInitialValue​(JOptionPane op)

      Requests the component representing the default value to have focus.
      Parameters:
        `op` - a `JOptionPane`

    - #### containsCustomComponents

          public abstract boolean containsCustomComponents​(JOptionPane op)

      Returns true if the user has supplied instances of Component for either the options or message.
      Parameters:
        `op` - a `JOptionPane`
      Returns:
        `true` if the given `JOptionPane` contains user created `Component`s