User Code: IndexedListModel and IndexedTableModel

import javax.swing.DefaultListModel;
import java.util.Hashtable;

/***********************************************************************
 * Class: IndexedListModel
 * Author: Amir Kost
 * Purpose: This class enables to have a user Object for each element in the List.
 * Usage: All the add/addElement/insertElementAt/set/setElementAt have a user object as a parameter.
 *            You can also call the setUserData(int index, Object o) to set the user's object.
 *            You can retrieve the user object by calling the method getUserObject(int row) or getUserObject(Object o).
 ***********************************************************************/

public class IndexedListModel extends DefaultListModel{

    Hashtable userObjects = new Hashtable();

    public IndexedListModel() {
    }

    public void addElement(Object o, Object userData) {
        super.addElement(o);
        userObjects.put(o, userData);
    }

    public void add(int index, Object o, Object userData) {
        super.add(index, o);
        userObjects.put(o, userData);
    }

    public void insertElementAt(Object o, int index, Object userData) {
        super.insertElementAt(o, index);
        userObjects.put(o, userData);
    }

    public Object set(int index, Object o, Object userData) {
        userObjects.put(o, userData);
        return super.set(index, o);
    }

    public void setElementAt(Object o, int index, Object userData) {
        super.setElementAt(o, index);
        userObjects.put(o, userData);
    }

    public Object remove(int index) {
        Object o = get(index);
        userObjects.remove(o);
        return super.remove(index);
    }

    public boolean removeElement(Object o) {
        userObjects.remove(o);
        return super.removeElement(o);
    }

    public void removeElementAt(int index) {
        Object o = get(index);
        userObjects.remove(o);
        super.removeElementAt(index);
    }

    public void removeAllElements() {
        userObjects.clear();
        super.removeAllElements();
    }

    public void clear() {
        userObjects.clear();
        super.clear();
    }

    public void removeRange(int fromIndex, int toIndex) {
        if(fromIndex > toIndex)
            throw new IllegalArgumentException();
        for(int i = fromIndex; i < toIndex; i++) {
            Object o = get(i);
            userObjects.remove(o);
            super.remove(i);
        }
    }

    public Object getUserObject(Object o) {
        return userObjects.get(o);
    }

    public Object getUserObject(int index) {
        Object o = get(index);
        return userObjects.get(o);
    }

    public void setUserData(int index, Object o) {
        Object key = get(index);
        userObjects.put(key, o);
    }

    // sets the data for the key only if key is an element in the List
    // if key is not found - it does nothing
    public void setUserData(Object key, Object val) {
        if(this.indexOf(key) != -1)
            userObjects.put(key, val);
    }
}



import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.File;

/***********************************************************************
* Class:   IndexedListExample
* Purpose:   This class enables selection and deletion of files using the IndexedListModel.
*               It displays only the name of the file, and allows deletion of selected files.
*
***********************************************************************/
public class IndexedListExample extends JFrame{

    JList list;
    IndexedListModel model;
    JButton btnBrowse;
    JButton btnDelete;
    JPanel southPanel;
    JFileChooser fileChooser;

    public IndexedListExample() {
        this.setTitle("IndexedList Example");
        model = new IndexedListModel();
        list = new JList(model);
        btnBrowse = new JButton("Browse");
        btnDelete = new JButton("Delete");
        fileChooser = new JFileChooser();
        fileChooser.setMultiSelectionEnabled(true);
        fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
        btnBrowse.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                onBrowse();
            }
        });
        btnDelete.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                onDelete();
            }
        });
        southPanel = new JPanel();
        southPanel.add(btnBrowse);
        southPanel.add(btnDelete);
        getContentPane().setLayout(new BorderLayout());
        getContentPane().add(list, BorderLayout.CENTER);
        getContentPane().add(southPanel, BorderLayout.SOUTH);
        list.setPreferredSize(new Dimension(250, 200));
        pack();
        setVisible(true);
    }

    private void onBrowse() {
        fileChooser.showDialog(this, "Select Files");
        File[] files = fileChooser.getSelectedFiles();
        for(int i = 0; i < files.length; i++) {
            model.addElement(files[i].getName(), files[i]);
        }
    }

    private void onDelete() {
        int selIndex = list.getSelectedIndex();
        if(selIndex == -1) {
            JOptionPane.showMessageDialog(this, "No files were selected!", "", JOptionPane.ERROR_MESSAGE);
            return;
        }
        else {
            if(JOptionPane.showConfirmDialog(this, "Are you sure you want to delete these files?", "", JOptionPane.YES_NO_OPTION) != JOptionPane.YES_OPTION)
                return;
        }
        while((selIndex = list.getSelectedIndex()) != -1) {
            File f = (File) model.getUserObject(selIndex);
            f.delete();
            model.remove(selIndex);
        }
    }

    protected void processWindowEvent(WindowEvent e) {
        super.processWindowEvent(e);
        if (e.getID() == WindowEvent.WINDOW_CLOSING) {
           System.exit(0);
        }
    }

    public static void main(String[] args) {
        IndexedListExample indexedListExample1 = new IndexedListExample();
    }
}