# Class FileChooserUI

java.lang.Object
javax.swing.plaf.ComponentUI
javax.swing.plaf.FileChooserUI

Direct Known Subclasses:
  `BasicFileChooserUI`, `MultiFileChooserUI`

public abstract class FileChooserUI extends ComponentUI
Pluggable look and feel interface for `JFileChooser`.

- ## Constructor Summary

  Constructors
  Modifier
  Constructor
  Description
  `protected`
  `FileChooserUI()`
  Constructor for subclasses to call.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `abstract void`
  `ensureFileIsVisible(JFileChooser fc, File f)`
  Ensure the file in question is visible.
  `abstract FileFilter`
  `getAcceptAllFileFilter(JFileChooser fc)`
  Returns an accept-all file filter.
  `abstract String`
  `getApproveButtonText(JFileChooser fc)`
  Returns approve button text.
  `JButton`
  `getDefaultButton(JFileChooser fc)`
  Returns default button for current `LookAndFeel`.
  `abstract String`
  `getDialogTitle(JFileChooser fc)`
  Returns the dialog title.
  `abstract FileView`
  `getFileView(JFileChooser fc)`
  Returns a file view.
  `abstract void`
  `rescanCurrentDirectory(JFileChooser fc)`
  Rescan the current directory.

  ### 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 Details

  - ### FileChooserUI

    protected FileChooserUI()
    Constructor for subclasses to call.

- ## Method Details

  - ### getAcceptAllFileFilter

    public abstract FileFilter getAcceptAllFileFilter(JFileChooser fc)
    Returns an accept-all file filter.
    Parameters:
      `fc` - the file chooser
    Returns:
      an accept-all file filter

  - ### getFileView

    public abstract FileView getFileView(JFileChooser fc)
    Returns a file view.
    Parameters:
      `fc` - the file chooser
    Returns:
      a file view

  - ### getApproveButtonText

    public abstract String getApproveButtonText(JFileChooser fc)
    Returns approve button text.
    Parameters:
      `fc` - the file chooser
    Returns:
      approve button text.

  - ### getDialogTitle

    public abstract String getDialogTitle(JFileChooser fc)
    Returns the dialog title.
    Parameters:
      `fc` - the file chooser
    Returns:
      the dialog title.

  - ### rescanCurrentDirectory

    public abstract void rescanCurrentDirectory(JFileChooser fc)
    Rescan the current directory.
    Parameters:
      `fc` - the file chooser

  - ### ensureFileIsVisible

    public abstract void ensureFileIsVisible(JFileChooser fc, File f)
    Ensure the file in question is visible.
    Parameters:
      `fc` - the file chooser
      `f` - the file

  - ### getDefaultButton

    public JButton getDefaultButton(JFileChooser fc)
    Returns default button for current `LookAndFeel`. `JFileChooser` will use this button as default button for dialog windows.
    Parameters:
      `fc` - the `JFileChooser` whose default button is requested
    Returns:
      the default JButton for current look and feel
    Since:
      1.7