joptionpane shwo message code example
Example 1: dialog box in java swing
import javax.swing.JOptionPane;
public class Main {
public static void main(String[] argv) throws Exception {
JOptionPane.showMessageDialog(null, "I am happy.");
}
}
Example 2: java joptionpane
JOptionPane.showMessageDialog(frame, "Eggs are not supposed to be green.");