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| Chapter 18 The java.awt Package |

## 18.22 java.awt.FileDialog (JDK 1.0)

###

This class represents a file selection dialog box. The constants `LOAD` and `SAVE` are values of an optional constructor argument that specifies whether the dialog should be an Open File dialog or a Save As dialog. You may specify a `FilenameFilter` object to control which files are displayed in the dialog.

The inherited `show()` method pops the dialog up. For dialogs of this type, `show()` blocks, not returning until the user has selected a file and dismissed the dialog (which pops down automatically--you don't have to call `hide()`). Once `show()` has returned, use `getFile()` to get the name of the file the user selected.

    public class FileDialog extends Dialog {
        // Public Constructors
            1.1  public FileDialog(Frame parent);
                public FileDialog(Frame parent, String title);
                public FileDialog(Frame parent, String title, int mode);
        // Constants
                public static final int LOAD;
                public static final int SAVE;
        // Public Instance Methods
                public void addNotify();  // Overrides Dialog
                public String getDirectory();
                public String getFile();
                public FilenameFilter getFilenameFilter();
                public int getMode();
                public synchronized void setDirectory(String dir);
                public synchronized void setFile(String file);
                public synchronized void setFilenameFilter(FilenameFilter filter);
            1.1  public void setMode(int mode);
        // Protected Instance Methods
                protected String paramString();  // Overrides Dialog
    }

### Hierarchy:

`Object->Component(ImageObserver, MenuContainer, Serializable)-> Container->Window->Dialog->FileDialog`

### Passed To:

`Toolkit.createFileDialog()`

java.awt.EventQueue (JDK 1.1) |  | java.awt.FlowLayout (JDK 1.0)