package test;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JToolBar;

public class Class1 {
 public static void main(String[] args) {
  JFrame frame = new JFrame("Test");
  JToolBar toolbar = new JToolBar();
  JButton button = new JButton("btn1");
  toolbar.add(button);
  Container contentPane = frame.getContentPane();
  contentPane.add(toolbar, BorderLayout.NORTH);
  frame.setSize(350, 150);
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  frame.setVisible(true);	    
  button.addActionListener(new ActionListener() {
   @Override
   public void actionPerformed(ActionEvent e) {
	JOptionPane.showMessageDialog(null, "Test", "Test", JOptionPane.INFORMATION_MESSAGE);
   }
  });
 }
}