import javax.swing.JLabel;
import javax.swing.JOptionPane;
import java.awt.Color;

public class dialog {

    public static void main(String[] a)
    {

        // define a label containing the text "hello" in red
        JLabel mylabel = new JLabel("hello");
        mylabel.setForeground(new Color(255, 0, 0));

        // display a message dialog showing our label
        JOptionPane.showMessageDialog(null, mylabel);

    }

}