FontDemo example  
This program displays the available fonts and how they look in different sizes and styles..

Fonts - Centering Text  
To find the size of a font or of a particular String..

FontMetrics  
The java.awt.FontMetrics class is used to determine the measurements of characters and strings..

Font  
The java.awt.Font class is used to create Font objects to set the font for drawing text, labels, text fields, buttons, etc..