帮我看一下，我写的对吗
package zs;import java.awt.*;
import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import java .awt.event.*;
import *;
public class lianxi extends JFrame
{
private JTextArea editor;
private Container c;
//private Font f=new Font(“sanserif”, Font.PLAIN,12);
//菜单栏成员属性声明
private JMenuBar mb; //菜单棒
private JMenu fileMenu; //文件菜单
private JMenu editMenu; //编辑菜单
private JMenu formatMenu; //格式菜单
private JMenuItem fileMenuOpen,fileMenuSave,fileMenuExit; //文件菜单编辑菜单
private JMenuItem editMenuCopy,editMenuCut,editMenuPaste; //编辑菜单编辑菜单
private JMenu formatSet; //格式菜单第一组菜单
private JMenuItem lineWrap,cancleLineWrap,cancleWrapStyleWord;
private JMenu fontMenu; //字体菜单
private JMenu color;
private JMenu style; //字体样式
private JMenuItem bold,italic,hong,lan,lv,huang,hei;
int b=Font.PLAIN;
int i=Font.PLAIN;
//字号
String[] zh={" 8 "," 10 "," 12 "," 14 "," 16 "," 18 "," 20 "," 24 "," 28 "," 32"," 40 "," 56 ",};
private JMenu fontlabe1;
private JComboBox c1,c2;
String ss="宋体";
int s=12;
//字体样式
private String[] mz={" 宋体 "," 隶书 "," 楷体 "," 宋体 "," 华文新魏 "," 华文新魏 "," 华文行楷 "," 幼圆 "," 黑体"," 华文彩云 "," 方正姚体 ",};
//工具栏成员属性声明
private JToolBar toolBar; //工具棒
private JButton b1,b2,b3,b4,b5; //声明5个按钮,分别为:" 打开 "," 保存 "," 复制 "," 剪切 "," 粘贴 "
//弹出式菜单属性声明
private JPopupMenu pm;
private JMenuItem item1,item2,item3,item4,item5;
public lianxi ()
{
super(" 简单记事本 ");
setBounds(200,100,500,400);
try{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e){ System.err.println(" 不能被设置外观的原因: "+e);}
c=getContentPane(); //创建一个内容面板
editor = new JTextArea(); //创建一个文本区
c.add(new JScrollPane(editor)); //设置滚动条,并添加到内容面板
//菜单栏的实现
//文件菜单的实现
mb = new JMenuBar(); //创建菜单棒
fileMenu = new JMenu(" 文件(F) "); //创建菜单
fileMenuOpen = new JMenuItem(" 打开(O)...Ctrl+O ");
fileMenuSave = new JMenuItem(" 保存(S)...Ctrl+S ");
fileMenuExit = new JMenuItem(" 退出 ");
JMHandler JM=new JMHandler(); //创建监听器
fileMenuOpen.addActionListener(JM); //注册监听器
fileMenuSave.addActionListener(JM);
fileMenu.add(fileMenuSave);
fileMenu.add(fileMenuOpen);
fileMenu.add(fileMenuSave);
fileMenu.addSeparator(); //添加分隔线
fileMenu.add(fileMenuSave);
//编辑菜单的实现
editMenu = new JMenu("编辑(E)");
editMenuCopy = new JMenuItem(" 复制(C) Ctrl+C ");
editMenuCut = new JMenuItem(" 剪切(T) Ctrl+X ");
editMenuPaste =new JMenuItem(" 粘贴(P) Ctrl+V ");
EMHandler EM=new EMHandler(); //创建监听器
editMenuCopy.addActionListener(EM); //注册监听器
editMenuPaste.addActionListener(EM);
editMenu.add(editMenuCopy);
editMenu.add(editMenuCut);
editMenu.add(editMenuPaste);
//格式菜单的实现
formatMenu = new JMenu(" 格式(O) "); //创建菜单
formatSet = new JMenu(" 格式设置 "); //二级菜单
lineWrap = new JMenuItem(" 自动换行 "); //二级菜单项
cancleLineWrap = new JMenuItem(" 取消自动换行 ");
wrapStyleWord = new JMenuItem(" 断行不断字 ");
cancleWrapStyleWord = new JMenuItem(" 取消断行不断字 ");
FMhandler FM=new FMHandler();
lineWrap.addActionListener(FM);
cancleLineWrap.addActionListener(FM);
wrapStyleWord.addActionListener(FM);
cancleWrapStyleWord.addActionListener(FM);
formatSet.add(lineWrap);
formatSet.add(cancleLineWrap);
formatSet.addSeparator(); //添加分隔线
formatSet.add(wrapStyleWord);
formatSet.add(cancleWrapStyleWord);
formatSet.add(formatSet);
//字体菜单的实现
fontMenu=new JMenu(" 字体(Z) ");
color=new JMenu(" 颜色 ");
hong=new JMenuItem(" 红色 ");
color.add(hong);
lan=new JMenuItem(" 蓝色 ");
color.add(lan);
lv=new JMenuItem(" 绿色 ");
color.add(lv);
huang=new JMenuItem(" 黄色 ");
color.add(huang);
hei=new JMenuItem(" 黑色 ");
color.add(hei);
//style=new JMenu("样式");
bold=new JCheckBoxMenuItem(" 粗体 ");
//style.add(bold);
italic=new JCheckBoxMenuItem(" 斜体 ");
//style.add(italic);
HMHandler HM=new HMHandler(); //创建监听器
hong.addActionListener(HM);
lan.addActionListener(HM);
lv.addActionListener(HM);
huang.addActionListener(HM);
bold.addActionListener(HM);
italic.addActionListener(HM);
color.addActionListener(HM);
//style.addActionListener(HM);
fontMenu.add(color);
fontMenu.add(bold);
fontMenu.add(italic);
//字母组合框
fontlabe1=new JMenu(" 字号(H)");
//组合框
c1=new JComboBox(zh);
c1.setBackground(Color.green);
c1.setFont(new Font("宋体",Font.PLAIN,12));
c1.setMaximumRowCount(5);
CMHandler CM=new CMHandler();
c1.addActionListener(CM);
fontlabe1.add(c1);
//字体样式
style=new JMenu(" 字体样式(S) ");
c2=new JComboBox(mz);
c2.setBackground(Color.green);
c2.setFont(new Font("宋体",Font.PLAIN,12));
c2.setMaximumRowCount(5);
SMHandler SM=new SMHandler();
c2.addItemListener(SM);
style.add(c2);
//将菜单全部添加菜单棒里
mb.add(fileMenu);
mb.add(editMenu);
mb.add(formatMenu);
mb.add(fontMenu);
mb.add(fontlabe1);
mb.add(style);
//工具栏的实现
//按钮分别为:"打开","保存","复制","剪切","粘贴"
toolBar =new JToolBar();
b1= new JButton(new ImageIcon(" d:/img/open.gif"));
b2= new JButton(new ImageIcon(" d:/img/save.gif"));
b3= new JButton(new ImageIcon(" d:/img/copy.gif"));
b4= new JButton(new ImageIcon(" d:/img/cyt.gif"));
b5= new JButton(new ImageIcon(" d:/img/paste.gif"));
TBHanlder TB=new TBHanlder(); //创建按钮监听器
b1.addActionListener(TB);
b2.addActionListener(TB);
b3.addActionListener(TB);
b4.addActionListener(TB);
b5.addActionListener(TB);
//把按钮全部添加到工具棒中
toolBar.add(b1);
toolBar.add(b2);
toolBar.add(b3);
toolBar.add(b4);
toolBar.add(b5);
//弹出菜单的实现
pm =new JPopupMenu(); //创建弹出菜单
item1 = new JMenuItem(" 打开 ");
item2 = new JMenuItem(" 保存");
item3 = new JMenuItem(" 复制 ");
item4 = new JMenuItem(" 剪切");
item5 = new JMenuItem(" 粘贴 ");
JPHandler JP=new JPHandler();
item1.addActionListener(JP); //注册菜单项的鼠标事件监听器
item2.addActionListener(JP);
item3.addActionListener(JP);
item4.addActionListener(JP);
item5.addActionListener(JP);
editor.addMouseListener(JP); //注册文本区的鼠标事件监听器
pm.add(item1);
pm.add(item2);
pm.add(item3);
pm.add(item4);
pm.add(item5);
//把菜单栏,工具栏,弹出菜单添加到内容面板
setJMenuBar(mb); //显示菜单栏
c.add(toolBar,BorderLayout.NORTH);
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
//字号菜单
public class CMHandler implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==c1)
{
s=Integer.parseInt(zh[c1.getSelectedIndex()]);
editor.setFont(new Font(ss,b+i,s));
}
}
}
//自定义类实现文件菜单项的事件处理
private class JMHandler implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==fileMenuOpen){ loadFile(); }
else if(e.getSource()==fileMenuSave){ saveFile(); }
else{ System.exit(0); }
}
public void loadFile() //打开文件方法
{
JFileChooser fc=new JFileChooser();
int r=fc.showSaveDialog(this);
if(r==JFileChooser.APPROVE_OPTION)
{
File file=fc.getSelectedFile();
try{ editor.write(new FileWriter(file)); }
catch(IOException e){}
}
}
//编辑简单菜单项的事件处理
private class EMHandler implements ActionListener
{
public void actionFerformed(ActionEvent e)
{
if(e.getSource()==editMenuCopy) //实现复制功能
{
editor.copy();
editor.requestFocus();
}
else if(e.getSource()==editMenuCut) //实现剪切功能
{
editor.cut();
editor.requestFocus();
}
else //实现粘贴
{
editor.paste();
editor.requestFocus();
}
}
}
//格式菜单二级菜单的菜单项的事件处理
private class FMHandler implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==lineWrap){ editor.setLineWrap(true);}
else if(e.getSource()==cancleLineWrap){ editor.setLineWrap(false);}
else if(e.getSource()==wrapStyleWord){ editor.setWrapStyleWord(true);}
else{ editor.setWrapStyleWord(false);}
}
}
//自定义实现工具栏的按钮事件处理
private class TBHanlder implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==b1){ loadFile(); } //实现打开文件功能
else if((e.getSource()==b2){ saveFile();} //实现保存文件功能
else if((e.getSource()==b3) //文件复制
{
editor.copy();
editor.requestFocus();
}
else if(e.getSource()==b4) //文件剪切
{
editor.cut();
editor.requestFocus();
}
else //文件粘贴
{
editor.paste();
editor.requestFocus();
}
}
}
//自定义类实现弹出式菜单的事件处理
private class JPHandler implements ActionListener,MouseListener
{
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==item1){ loadFile(); } //实现打开文件功能
else if((e.getSource()==item2){ saveFile();} //实现保存文件功能
else if((e.getSource()==item3) //文件复制
{
editor.copy();
editor.requestFocus();
}
else if(e.getSource()==item4) //文件剪切
{
editor.cut();
editor.requestFocus();
}
else //文件粘贴
{
editor.paste();
editor.requestFocus();
}
}
}
public void mouseReleased(MouseEvent e)
{
if(e.isPopupTrigger()) //判断是否按下鼠标右键
pm.show(editor,e.getX(),e.getY()); //显示弹出式菜单
}
public void mouseCliked(MouseEvent e){}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mousePressed(MouseEvent e){}
}
//字体菜单按钮事件处理
public class HMHandler implements ActionListener
{
public void mouseReleased(MouseEvent e)
{
String cmd=e.getActionCommand();
int b;
if(cmd.equals("红色"))
editor.setForegfound(Color.red);
else if(cmd.equals("蓝色"))
editor.setForegfound(Color.blue);
else if(cmd.equals("绿色"))
editor.setForegfound(Color.green);
else if(cmd.equals("黄色"))
editor.setForegfound(Color.yellow);
else if(cmd.equals("黑色"))
editor.setForegfound(Color.black);
else if(cmd.equals("粗体"))
editor.setFont(new Font("宋体",Font.BOLD,s));
else if(cmd.equals("斜体"))
editor.setFont(new Font("宋体",Font.ITALIC,s));
}
}
//字体样式
public class SMHandler implements ItemListener
{
public void itemStateChanged(ItemEvent e)
{
if(e.getStateChange()==e.SELECTED)
{
ss=(String)c2.getSelectedItem();
editor.setFont(new Font(ss,b+i,s));
}
}
public static void main(String[] args)
{
Nodepad N=new Nodepad();
}
}
}
