how can i increase the font of a string

Hi friends,

I just wanted to know of how to increase the font size of a string,also color of dat particular string...............

The code is like this.........

static void setABCTitle(String strABCRange) {

String strTitle = "Test Message";

strABCRange = (strABCRange == null) ? "" : strABCRange .trim();

strABCRange = strABCRange .replaceAll("to", "-");

if(!strABCRange .equals("")) {

strTitle =( strTitle + " : ABC Range " + strABCRange );

}

mainFrame.setTitle(strTitle);

}

Plzzzzz..........help me out ..........

I just wanted to increase this font size of ABCRange and also want to put a different color for the same.......................

[729 byte] By [chandrashekar9274a] at [2007-11-27 8:24:27]