import javax.swing.*;
import java.awt.event.*;
public class SwingiDialoog2 extends JApplet implements ActionListener{
  JButton nupp=new JButton("Vajuta");
  public SwingiDialoog2(){
    getContentPane().add(nupp);
    nupp.addActionListener(this);
  }
  public void actionPerformed(ActionEvent e){
     JOptionPane.showMessageDialog(this, "Tervitus", "Sőbralik teade", 
        JOptionPane.PLAIN_MESSAGE);
  }
}