import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class ShowMessageDialog{
	JButton button;
	public static void main(String[] args){
		ShowMessageDialog md = new ShowMessageDialog();
	}

	public ShowMessageDialog(){
		JFrame frame = new JFrame("Message Dialog Box");
		button = new JButton("Show simple message dialog box");
		button.addActionListener(new MyAction());
		JPanel panel = new JPanel();
		panel.add(button);
		button = new JButton("Show \"Ok/Cancel\" message dialog box");
		button.addActionListener(new MyAction());
		panel.add(button);
		button = new JButton("Show \"Yes/No/Cancel\" dialog box");
		button.addActionListener(new MyAction());
		panel.add(button);
		frame.add(panel);
		frame.setSize(400, 400);
		frame.setVisible(true);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}

	public class MyAction implements ActionListener{
		public void actionPerformed(ActionEvent ae){
			String str = ae.getActionCommand();
			if(str.equals("Show simple message dialog box")){
				JOptionPane.showMessageDialog(null, "This is the simple message dialog box.", "Roseindia.net", 1);
			}
			else if(str.equals("Show \"Ok/Cancel\" message dialog box")){
				if(JOptionPane.showConfirmDialog(null, "This is the \"Ok/Cancel\" message dialog box.", "Roseindia.net", JOptionPane.OK_CANCEL_OPTION) == 0)
					JOptionPane.showMessageDialog(null, "You clicked on \"Ok\" button", "Roseindia.net", 1);
				else
					JOptionPane.showMessageDialog(null, "You clicked on \"Cancel\" button", "Roseindia.net", 1);
			}	
			else if(str.equals("Show \"Yes/No/Cancel\" dialog box")){
				JOptionPane.showConfirmDialog(null, "This is the \"Yes/No/Cancel\" message dialog box.");
			}
		}
	}
}