java implement font *.fnt file

Project Description:
i want to use the attached font digi_23.fnt this way

instead of "Arial Black" !!

public Font font = new Font("Arial Black", Font.PLAIN, (int) (0.07 * screenHeight));

creditLabel = new JLabel();
creditLabel.setText(format_double_to_string("10.00"));
creditLabel.setHorizontalAlignment(JLabel.RIGHT);
creditLabel.setOpaque(false);
creditLabel.setBackground(Color.BLUE);
creditLabel.setFont(font);
creditLabel.setForeground(Color.white);