## Uses of Class
javax.swing.JOptionPane

- Packages that use JOptionPane
  Package | Description
  --- | ---
  javax.swing.plaf | Provides one interface and many abstract classes that Swing uses to provide its pluggable look-and-feel capabilities.
  javax.swing.plaf.basic | Provides user interface objects built according to the Basic look and feel.
  javax.swing.plaf.multi | Provides user interface objects that combine two or more look and feels.

- - ### Uses of JOptionPane in javax.swing.plaf

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

  - ### Uses of JOptionPane in javax.swing.plaf.basic

    Fields in javax.swing.plaf.basic declared as JOptionPane
    Modifier and Type | Field | Description
    --- | --- | ---
    `protected JOptionPane` | BasicOptionPaneUI.`optionPane` | `JOptionPane` that the receiver is providing the look and feel for.

    Methods in javax.swing.plaf.basic with parameters of type JOptionPane
    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | BasicOptionPaneUI.`containsCustomComponents​(JOptionPane op)` | Returns true if in the last call to validateComponent the message or buttons contained a subclass of Component.
    `void` | BasicOptionPaneUI.`selectInitialValue​(JOptionPane op)` | If inputComponent is non-null, the focus is requested on that, otherwise request focus on the default value

  - ### Uses of JOptionPane in javax.swing.plaf.multi

    Methods in javax.swing.plaf.multi with parameters of type JOptionPane
    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | MultiOptionPaneUI.`containsCustomComponents​(JOptionPane a)` | Invokes the `containsCustomComponents` method on each UI handled by this object.
    `void` | MultiOptionPaneUI.`selectInitialValue​(JOptionPane a)` | Invokes the `selectInitialValue` method on each UI handled by this object.