import javax.swing.JFrame;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;

public class FileDialogExample extends JFrame {
  Display d;

  Shell s;

  FileDialogExample() {
    d = new Display();
    s = new Shell(d);
    s.setSize(400, 400);
    
    s.setText("A MessageBox Example");
    //         create the menu system
    Menu m = new Menu(s, SWT.BAR);
    // create a file menu and add an exit item
    final MenuItem file = new MenuItem(m, SWT.CASCADE);
    file.setText("&File");
    final Menu filemenu = new Menu(s, SWT.DROP_DOWN);
    file.setMenu(filemenu);
    final MenuItem openItem = new MenuItem(filemenu, SWT.PUSH);
    openItem.setText("&Open\tCTRL+O");
    openItem.setAccelerator(SWT.CTRL + 'O');
    final MenuItem saveItem = new MenuItem(filemenu, SWT.PUSH);
    saveItem.setText("&Save\tCTRL+S");
    saveItem.setAccelerator(SWT.CTRL + 'S');
    final MenuItem separator = new MenuItem(filemenu, SWT.SEPARATOR);
    final MenuItem exitItem = new MenuItem(filemenu, SWT.PUSH);
    exitItem.setText("E&xit");

    class Open implements SelectionListener {
      public void widgetSelected(SelectionEvent event) {
        FileDialog fd = new FileDialog(s, SWT.OPEN);
        //fd.
        fd.setText("Open");
        fd.setFilterPath("C:/");
        String[] filterExt = { "*.txt", "*.doc", ".rtf", "*.*" };
        fd.setFilterExtensions(filterExt);
        String selected = fd.open();
        System.out.println(selected);
      }

      public void widgetDefaultSelected(SelectionEvent event) {
      }
    }

    class Save implements SelectionListener {
      public void widgetSelected(SelectionEvent event) {
        FileDialog fd = new FileDialog(s, SWT.SAVE);
        fd.setText("Save");
        fd.setFilterPath("C:/");
        String[] filterExt = { "*.txt", "*.doc", ".rtf", "*.*" };
        fd.setFilterExtensions(filterExt);
        String selected = fd.open();
        System.out.println(selected);
      }

      public void widgetDefaultSelected(SelectionEvent event) {
      }
    }
    openItem.addSelectionListener(new Open());
    saveItem.addSelectionListener(new Save());

    exitItem.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        MessageBox messageBox = new MessageBox(s, SWT.ICON_QUESTION
            | SWT.YES | SWT.NO);
        messageBox.setMessage("Do you really want to exit?");
        messageBox.setText("Exiting Application");
        int response = messageBox.open();
        if (response == SWT.YES)
          System.exit(0);
      }
    });
    s.setMenuBar(m);
    s.open();

    while (!s.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();
  }

  public static void main(String[] argv) {
    new FileDialogExample();
  }

}

String selected = fd.open();
        System.out.println(selected);