/* * Author: CHEN Yongyuan (Walter) from OOP(1007) * Date: 2022-05-01 * Description: This is the Main Frame class. */ import java.awt.BorderLayout; import javax.swing.JFrame; public class MyFrame extends JFrame { public MyFrame() { setTitle("MyFrame"); setSize(400, 300); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // center the frame setLocationRelativeTo(null); setLayout(new BorderLayout()); // my draw panel add(new MyPanel()); setVisible(true); } }