how to change font size of JOptionPane

Question

import java.awt.ComponentOrientation;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing         


        

Answer 1

If you want all JOptionPanes to have the same font style and size, you can change the property of the UIManager with:

javax.swing.UIManager.put("OptionPane.font", new Font("yourFontName", Font.BOLD, 30));

To get a list of the available font names, use the following snippet:

GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
String[] fontNames = ge.getAvailableFontFamilyNames();

for (int index = 0; index < fontNames.length; index++)
{
     System.out.println(fontNames[index]);
}