Assuming the text you want to change is in a textField you can change the text with setText(). Add a listener to the second/last text entry field and call a method that resets your textField with the new value. Should also be able to use setFont() to make it bold if that's what you want.
Yup yr correct about the setFont actually i've been using it the whole time but there was a bit of confusion there (as i was previously using textField and changed to textArea).....i am trying to get used to using textAreas..
And yes i have tried using setText as you can read in my post, however, its only displaying the last line of my answer....when i use append it tops up the new answer to the old ...and i only want the new answers.