Plzz help me with the output of this code....

Question

hi all..
plz check this code and tell me how to select one or more options from this Jlist and write the selected item into a text file....This code does that but the text file shows only one item (i tried using arry but din work) AND text file displays the item which is selected last time the code is interpreted..
import java.awt.*;
import java.io.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class mld extends JFrame implements ListSelectionListener, ActionListener
{private JFrame    myframe = new JFrame("Select File");
                   private DefaultListModel listModel = new DefaultListModel();
     private JList list= new JList(listModel);
     private String selString = "select file name";
     private JButton selButton;
        public mld(){
     super("mld");
     addWindowListener(new WindowAdapter()
   {     public void windowClosing(WindowEvent ev) {dispose();     
               System.exit(0);
          listModel.addElement("prog1");
listModel.addElement("prog2");
     listModel.addElement("prog3");
     listModel.addElement("prog4");
     listModel.addElement("prog5");
     listModel.addElement("prog6");
     listModel.addElement("prog7");
     listModel.addElement("prog8");
     listModel.addElement("prog9");
     listModel.addElement("prog10");
     listModel.addElement("prog11");     
listModel.addElement("prog12");
     list.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
list.addListSelectionListener(this);
     JScrollPane listScrollPane = new JScrollPane(list);
     JButton selButton = new JButton(selString);
     selButton.setActionCommand(selString);
     selButton.addActionListener(this);
//Create a panel that uses FlowLayout (the default).
     JPanel buttonPane = new JPanel();
     buttonPane.add(selButton);
     Container contentPane = getContentPane();
     contentPane.add(listScrollPane, BorderLayout.CENTER);
     contentPane.add(buttonPane, BorderLayout.SOUTH);
     pack();
     show();}
public void valueChanged(ListSelectionEvent e) {}
public void actionPerformed(ActionEvent e){
     String tmp = new String(list.getSelectedValue().toString());
try{
FileOutputStream fileOut = new FileOutputStream("temp.txt");
fileOut.write(tmp.getBytes());
fileOut.close();}
catch (Exception e1)
{                e1.printStackTrace();  }
//*main method//
public static void main(String s[]) {
     JFrame frame = new mld();
try {
Process p = Runtime.getRuntime().exec("notepad temp.txt ");
p.waitFor();
Process p1 = Runtime.getRuntime().exec("c:/Program Files/Microsoft Office/Office/outlook.EXE /c ipm.note /m [email protected] /a c:/temp.txt");
catch(Exception e)
{                e.printStackTrace();  }
Thanx in advance
bharthi

Answer 1

replace
FileOutputStream fs = new FileOutputStream("filename");
with
FileOutputStream fs = new FileOutputStream("filename",true);