AccessibleValue (Java Platform SE 8 )
Keywords: javax.accessibility.AccessibleValue interface
Date: 2020-03-26

javax.accessibility

## Interface AccessibleValue

- All Known Implementing Classes:
    AbstractButton.AccessibleAbstractButton, Button.AccessibleAWTButton, Checkbox.AccessibleAWTCheckbox, CheckboxMenuItem.AccessibleAWTCheckboxMenuItem, JButton.AccessibleJButton, JCheckBox.AccessibleJCheckBox, JCheckBoxMenuItem.AccessibleJCheckBoxMenuItem, JInternalFrame.AccessibleJInternalFrame, JInternalFrame.JDesktopIcon.AccessibleJDesktopIcon, JMenu.AccessibleJMenu, JMenuItem.AccessibleJMenuItem, JProgressBar.AccessibleJProgressBar, JRadioButton.AccessibleJRadioButton, JRadioButtonMenuItem.AccessibleJRadioButtonMenuItem, JScrollBar.AccessibleJScrollBar, JSlider.AccessibleJSlider, JSpinner.AccessibleJSpinner, JSplitPane.AccessibleJSplitPane, JToggleButton.AccessibleJToggleButton, Menu.AccessibleAWTMenu, MenuItem.AccessibleAWTMenuItem, PopupMenu.AccessibleAWTPopupMenu, Scrollbar.AccessibleAWTScrollBar

      public interface AccessibleValue

  The AccessibleValue interface should be supported by any object that supports a numerical value (e.g., a scroll bar). This interface provides the standard mechanism for an assistive technology to determine and set the numerical value as well as get the minimum and maximum values. Applications can determine if an object supports the AccessibleValue interface by first obtaining its AccessibleContext (see `Accessible`) and then calling the `AccessibleContext.getAccessibleValue()` method. If the return value is not null, the object supports this interface.
  See Also:
    `Accessible`, `Accessible.getAccessibleContext()`, `AccessibleContext`, `AccessibleContext.getAccessibleValue()`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `Number` | `getCurrentAccessibleValue()` Get the value of this object as a Number.
    `Number` | `getMaximumAccessibleValue()` Get the maximum value of this object as a Number.
    `Number` | `getMinimumAccessibleValue()` Get the minimum value of this object as a Number.
    `boolean` | `setCurrentAccessibleValue(Number n)` Set the value of this object as a Number.

- - ### Method Detail

    - #### getCurrentAccessibleValue

          Number getCurrentAccessibleValue()

      Get the value of this object as a Number. If the value has not been set, the return value will be null.
      Returns:
        value of the object
      See Also:
        `setCurrentAccessibleValue(java.lang.Number)`

    - #### setCurrentAccessibleValue

          boolean setCurrentAccessibleValue(Number n)

      Set the value of this object as a Number.
      Parameters:
        `n` - the number to use for the value
      Returns:
        True if the value was set; else False
      See Also:
        `getCurrentAccessibleValue()`

    - #### getMinimumAccessibleValue

          Number getMinimumAccessibleValue()

      Get the minimum value of this object as a Number.
      Returns:
        Minimum value of the object; null if this object does not have a minimum value
      See Also:
        `getMaximumAccessibleValue()`

    - #### getMaximumAccessibleValue

          Number getMaximumAccessibleValue()

      Get the maximum value of this object as a Number.
      Returns:
        Maximum value of the object; null if this object does not have a maximum value
      See Also:
        `getMinimumAccessibleValue()`

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