Cant get JTextArea setText working correctly

Question

I am developing an app where a user selects rows from a table, and the selections are listed in a textarea. if a user selects a row twice, he deselects that item -- because of this I use setText instead of append (easiest way to display selected rows). Problem is that sometimes if I click on a row, the corresponding item isnt always displayed in the textarea. Thanx in advance for any help. Here is my relevant code
archiveInfo.addMouseListener( new MouseAdapter() {
            public void mouseClicked(MouseEvent e){
                int rowAnother = archiveInfo.rowAtPoint(e.getPoint());
                addArchiveChoice(rowAnother); // rowAnother might be more accurate; handle more clicks
                if(numberArchivesSelected > 0)
                    mainPanel.setEnabledAt(1,true);
                else
                    mainPanel.setEnabledAt(1,false);
private void addArchiveChoice(int i) {
        if (!archiveChoices.selected) {
archiveChoices[i].selected = true;
printMessage("Adding to choices: " + archiveChoices[i].name);
numberArchivesSelected++;
// selectedArchives.append(archiveChoices[i].name+"\n");
} else {
archiveChoices[i].selected = false;
printMessage("Removing from choices: " + archiveChoices[i].name);
numberArchivesSelected--;
setArchiveText();
private void setArchiveText() {
String choices = "";
for (int i=0; i<archiveChoices.length; i++)
if (archiveChoices[i].selected)
choices += archiveChoices[i].name + "\n";
selectedArchives.setText(choices);
selectedArchives.revalidate();
any ideas on what is wrong?

Answer 1

Problem is that sometimes if I click on a row, the corresponding item isnt always displayed in the textareaA mouseClicked event is generated when a mousePressed and mouseReleased event is created at the same X, Y location. However, if you move the mouse even a pixel after the mousePressed event is created and before the mouseReleased event is created, then a mouseClicked event is not created.
A better way to check for row selection is to use a selection listener. See this section from the Swing tutorial on "Tables - Detecting User Selections":
file:///C:/Java/tutorial/uiswing/components/table.html#selection