anuragbhalla,
Sure... just use the
requestFocus() method of Component( which TextBox(?!?!) (I assume you mean TextField or TextArea.) inherits from.) You can do this when you first display it, or in response to an event... Just remember, as the API
doc on this method states, "The component must be visible on the screen for this request to be granted."
HTH,
-Nate
P.S. - Some people on here might bug you about this, too... But JavaRanch's naming policy states that you have to have a name with a space in it... Not being picky... it is just the rule...