How to change color .. help

problem: How can i change the color of the words as i type?
example: you know in most programming languages, such as JLE or visual studio, wherein when you type a reserved word, the color changes like when you type the word "int", as well as when you type comments
int x ; //comment can anyone give me some sample codes i could use as basis? any help would be much appreciated =)

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Hi Vinay.
I would like to suggest a couple of references, quite similar to your requirement,
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[SAP HELP - Standard Reference for Assigning Colors to Parts of a Graph|http://help.sap.com/saphelp_nw04/helpdata/en/39/cca358576911d1896f0000e829fbbd/content.htm]
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class RowHeaderRenderer extends JLabel implements ListCellRenderer
JTable theTable = null;
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JTableHeader header = table.getTableHeader();
setOpaque(true);
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setForeground(header.getForeground());
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int level = 0;
try
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level = 0;
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setIcon(null);
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I tried but when i am clicking a particular label, the color of all labels in the List is being changed. So can you please assist me in changing color of only the label that is selected and the color must disappear after completion of Upto completion of fireAcknowledgeEvent(ackEvent);

im a bit confused with the post so hopefully this will help you, if not then let me know.
I think the problem is that in your renderer your saying
setBackground(header.getBackground());which is setting the backgound of the renderer rather than the selected item, please see an example below, I created a very simple program where it adds JLabels to a list and the renderer changes the colour of the selected item, please note the isSelected boolean.
Object "value" is the currentObject its rendering, obviously you may need to test if its a JLabel before casting it but for this example I kept it simple.
populating the list
public void populateList(){
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class RowHeaderRenderer extends JLabel implements ListCellRenderer
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