12일차 Book 클래스 (Swing04에 적용할 버튼 작성)

 

import javax.swing.*;

public class Book extends JPanel

{

        Book()

        {

                JButton bt = new JButton( "테스트");

               add( bt);

        }

        

         public static void main(String[] args)

        {

                new Book();

        }

}