import javax.swing.JFrame;
import java.awt.BorderLayout;
 
class Program01 extends JFrame {
    MyToolbar toolBar = new MyToolbar();
    Program01() {
        add(toolBar, BorderLayout.NORTH);
        setSize(400, 300);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }
    public static void main(String[] args) {
        new Program01();
    }
}