Set Word Colours

Question

Hi... again :)
When reading from a text file... I want to change certain words color.
I dived into the deep end and gave it a shot... and as usual it ending in hair pulling stuff haha. anyhow thought i'd post it and see what you lot say.
I tried setForgroundColor(Color c) but that sets the whole text.
public class IOGUI {
    public static void main(String[] args){
        IOGUI gui = new IOGUI();
    public IOGUI(){
        JFrame f = new JFrame("Test");
        JTextArea out = new JTextArea(10,30);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(out);
        f.pack();
        f.setVisible(true);
        try{
        File file = new File("c:/java/text.txt");
        FileReader fr = new FileReader(file);
        BufferedReader br = new BufferedReader(fr);
        String line;
        while((line = br.readLine()) != null){
            if(line.equals("dog")){
                //make the word i.e. blue
            out.append(line + "\n");
        }catch(Exception e){
}Thanks everyone for your help
Steve

Answer 1

Thanks for everyone's reply... i didnt have the time till now to sit and read through everything.
Anyhow, with all the usefull links refrences etc... i pieced something together (v.simple) but it works
public class IOGUI {
    private Style attrs[] = new Style[2];
    public static void main(String[] args){
        IOGUI gui = new IOGUI();
    public IOGUI(){
        JFrame f = new JFrame("Test");
        JTextPane out = new JTextPane();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        DefaultStyledDocument doc = (DefaultStyledDocument) out.getStyledDocument();
        Style def = StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);
        attrs[0] = doc.addStyle("one", def);
        attrs[1] = doc.addStyle("two", def);
        StyleConstants.setForeground(attrs[1], Color.red);
        doc.addStyle("one", attrs[0]);
        StyleConstants.setForeground(attrs[0], Color.blue);
        doc.addStyle("two", attrs[1]);
        try {
            doc.insertString(0, "This is all in Blue", attrs[0]);
            doc.insertString(doc.getLength(), "And this is red style.",     attrs[1]);
        } catch (BadLocationException e) {
                e.printStackTrace();
        f.getContentPane().add(out);
        f.pack();
        f.setVisible(true);
}How would i use that with a textarea tho? Cause i like the fact that you can simply say new JTextArea(10,30); and you kinda get the size you want.
jtextpane.size() isnt working for me.
Thanks
Steve