Java programming

I am using the following code to print a string to my prnter.  It appears as though the font is proportional and makes it impossible to keep columns straight.  How would I set the font to something like times Roman so I can set up a formatted string that will not be all over the place

                JTextPane textPane = new JTextPane();

                textPane.setText(printString);
                try {    
                    textPane.print();