Example

public static void main(String[] args){
javax.swing.JTextField jTextField = new javax.swing.JTextField();
jTextField.setFont(new java.awt.Font("Arial", 1, 15)); //$NON-NLS-1$
}
Solution
Use the default system fonts.

public static void main(String[] args){
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
String[] fontNames = ge.getAvailableFontFamilyNames();
javax.swing.JTextField jTextField = new javax.swing.JTextField();
jTextField.setFont(new java.awt.Font(fontNames[1], 1, 15));
}
Solution
  1. Retrieve the list of available fonts.
  2. Allow the user to select the font from this list.

public static void main(String[] args){
UIDefaults defaults = UIManager.getDefaults();
defaults.put( "Label.font", new java.awt.Font("dialog", java.awt.Font.PLAIN, 14)); //$NON-NLS-1$ //$NON-NLS-2$
}
Solution
Apply a generic, commonly available font, to all widgets.