I have a JOptionPane:
JOptionPane.showMessageDialog(null, text);
The text is a sting:
String text = \"Hello world.\"
You can pass a Component to JOptionPane in the message parameter and will use that to display your message.
Something like a JLabel or a JPanel with labels on it.
UPDATED
JLabel, JPanel and HTML text examples
public class TestOptionPane {
public static void main(String[] args) {
JLabel label = new JLabel("Hello");
label.setForeground(Color.RED);
JOptionPane.showMessageDialog(null, label);
JPanel pnl = new JPanel(new GridBagLayout());
pnl.add(createLabel("The quick"));
pnl.add(createLabel(" brown ", Color.ORANGE));
pnl.add(createLabel(" fox "));
JOptionPane.showMessageDialog(null, pnl);
String text = "The Quick brown fox";
JOptionPane.showMessageDialog(null, text);
}
public static JLabel createLabel(String text) {
return createLabel(text, UIManager.getColor("Label.foreground"));
}
public static JLabel createLabel(String text, Color color) {
JLabel label = new JLabel(text);
label.setForeground(color);
return label;
}
}
On the Mac-

On Windows -
