change text color in joptionpane
import java.awt.*;
import javax.swing.*;
public class SetColor {
public static void main(String[] args) {
UIManager um = new UIManager();
um.put("OptionPane.messageForeground", Color.red);
um.put("Panel.background", Color.yellow);
JOptionPane.showMessageDialog(null,"Hello","Set Color",
JOptionPane.INFORMATION_MESSAGE);
}
}