Question

which is the best way to add formated string in jframe.
Previously I was trying to add jlabel

Answer 1

If you want to display some text in a window, yes, adding a JLabel to your JFrame is fine.

Just create an instance of the font you want and assign it to the JLabel using setFont.

Here is a code samle (taken from here):

Font font = new Font("Jokerman", Font.PLAIN, 35);
JLabel textLabel = new JLabel(textMessage);
textLabel.setFont(font);