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    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
                File archivo = null;
        FileReader fr = null;
        BufferedReader br = null;

        try {
            archivo = new File ("C://destiny.txt");
            fr = new FileReader (archivo);
            br = new BufferedReader(fr);
            // normally I would prefer to use an ArrayList, but JList
            // has a constructor that takes a Vector directly.
            DefaultListModel listModel = new DefaultListModel();
           
           
            String line;
            while((line=br.readLine())!=null) {
                System.out.println(line);
                if(!listModel.contains(line))
                listModel.addElement(line);                                        
            }
        jList1.setModel(listModel);
           
        } catch(Exception e) {
            e.printStackTrace();
        } finally {
            try{
                if( null != fr ) {
                    fr.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
    }