已发布的记事本
代码说明：
import javax.swing.*; import java.awt.*; import java.awt.event.InputEvent; import java.awt.event.KeyEvent; import java.awt.event.*; import java.io.*; public class Moo{ public static void main(String args[]){ FirstWindow win=new FirstWindow("新建文本文档.txt-记事本"); } } class FirstWindow extends JFrame implements ActionListener,ItemListener{ JFileChooser fileChooser1,fileChooser2,fileChooser3,fileChooser4; JPopupMenu menu; JComboBox listFont; JTextArea text; JScrollPane scrollPane; JMenuBar menubar; JMenu menu1,menu2,menu3,menu4,menu5; JMenuItem item1,item2,item3,item4,item5,item6,item7,item8,item9,item10,item11,item12,item13 ,item14,item15,item16,item17,item18,item19,item20,item21,item22,item23,item24,item25,item26,item27 ,item28,item29,item30,item31,item32,item33,item34; FirstWindow(String s){ setTitle(s); setSize(260,270); setLocation(
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