Problems updating panel with remove() and add()

Question

Hi,
I have a class which extends JPanel, and everytime I call repaint on it I am trying to add the contents of a Hashtable to the screen. If I do not include the this.removeAll() then it will add those components to the Container...problem is that it will add them everytime so I will have multiple copies of the same thing. If I try and remove them first (notice how I put a boolean in so that I dont remove them before they are added) before adding them (so clear the screen), then they will never appear, no matter where I put the removeAll() or where i put the add(). Same applies for a remove() statement on each individual component.
I have spent hours on this stupid thing !
Any ideas would be much appreciated
Cheers
Ray
public void paintComponent(Graphics g) {
     super.paintComponent(g);
     if (painted) {
     this.removeAll();
     globalClock.setRate((int)nodeRef.getAverageRate());
     painted = true;
     //Iterate over the keys in the map
    Iterator keyIt = nodeRef.returnKeyIterator();
    Iterator valIt = nodeRef.returnValueIterator();
   while (keyIt.hasNext()) {
         String key = (String)keyIt.next();
        NodeObject node = (NodeObject)valIt.next();
        nameLabel = new JLabel("Client Name");
        nameField = new JTextField(key);
        currentTimeLabel = new JLabel("CurrentTime");
         currentTimeField = new JTextField(Double.toString(node.getCurrentTime()));
         updateLabel = new JLabel("Update Interval");
         updateField = new JTextField(Integer.toString(node.getInterval())); //default
         speedLabel = new JLabel("Clock Rate");
         speedField = new JTextField(Double.toString(node.getRate()));
         add(currentTimeLabel);
         add(currentTimeField);
         add(updateLabel);
         add(updateField);
         add(speedLabel);
         add(speedField);
        add(nameLabel);
         add(nameField);
    globalRateLabel = new JLabel("Global Speed");
    globalRateField = new JTextField(globalClock.getRate() + " %");
    globalRateField.setEditable(false);
    add(globalRateLabel);
    add(globalRateField);
}

Answer 1

Sometimes I will have two things in the hashTable, sometimes I will have one hundred !
Each time repaint() is called I want this to represent the current status of the Hashtable, so If on one repaint there are 100 pairs in the Hashtable it will add all the details of these pairs to the Container, however on the next repaint if there are only two pairs I dont want the other 98 entries on the page at all. You cant do this with just a component modifier, you have to remove the component completely. I figured that the easiest way to do this would be just to remove all the components completely, and then add what was needed by going through the Hashtable again. (note:effiecency is not a concern)
And yes I realise repaint() is called on resizes etc etc, but this wont adversely affect the program
Ray