import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTextField; /** Questo Programma visualizza un frame contenente un RectanglePanel */ public class RectanglePanelTest { public static void main(String[] args) { RectanglePanel rectPanel = new RectanglePanel(300,300,100,100,20,30); JFrame appFrame = new JFrame(); appFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); appFrame.setContentPane(rectPanel); appFrame.pack(); appFrame.show(); } }