대학교 수업/Java 프로그래밍
[Java] 명품 자바 프로그래밍 9장 Open Challenge
import java.awt.*; import javax.swing.*; class Challenge9 extends JFrame{ Challenge9(){ setTitle("Open Challenge9"); setDefaultCloseOperation(3); Container c = getContentPane(); c.setLayout(new BorderLayout()); c.add(new NorthPanel(), BorderLayout.NORTH); c.add(new CenterPanel(), BorderLayout.CENTER); setSize(400, 500); setVisible(true); } class NorthPanel extends JPanel{ NorthPanel(){ setBackgr..
