Java记事本代码.doc

程序源代码：/记事本import java.awt.BorderLayout;import java.awt.Color;import java.awt.Container;import java.awt.FlowLayout;import java.awt.Font;import java.awt.Graphics;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.InputStream;import javax.swing.AbstractAction;import javax.swing.Action;import javax.swing.JButton;import javax.swing.JFileChooser;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JMenu;import javax.swing.JMenuBar;import javax.swing.JPasswordField;import javax.swing.JTextField;import javax.swing.JTextPane;import javax.swing.JToolBar;import javax.swing.border.MatteBorder;import javax.swing.text.DefaultEditorKit.CopyAction;import javax.swing.text.DefaultEditorKit.CutAction;import javax.swing.text.DefaultEditorKit.PasteAction;import javax.swing.text.DefaultStyledDocument;public class EditorDemo extends JFrame JTextPane textPane = new JTextPane(); / 文本窗格，编辑窗口JLabel statusBar = new JLabel(); / 状态栏JFileChooser filechooser = new JFileChooser(); / 文件选择器public EditorDemo() / 构造函数super(简易记事本); / 调用父类构造函数Action actions = / Action数组,各种操作命令 new NewAction(), new OpenAction(), new SaveAction(), new CutAction(),new CopyAction(), new PasteAction(), new AboutAction(),new ExitAction(), ;setJMenuBar(createJMenuBar(actions); / 设置菜单栏Container container = getContentPane(); / 得到容器container.add(createJToolBar(actions), BorderLayout.NORTH); / 增加工具栏container.add(textPane, BorderLayout.CENTER); / 增加文本窗格container.add(statusBar, BorderLayout.SOUTH); / 增加状态栏setSize(500, 400); / 设置窗口尺寸/setVisible(true); / 设置窗口可视setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); / 关闭窗口时退出程序private JMenuBar createJMenuBar(Action actions) / 创建菜单栏JMenuBar menubar = new JMenuBar(); / 实例化菜单栏JMenu menuFile = new JMenu(文件(F); / 实例化菜单JMenu menuEdit = new JMenu(编辑(E);JMenu menuFormat = new JMenu(格式(O);JMenu menuFind = new JMenu(查找(V);JMenu menuAbout = new JMenu(帮助(H);menuFile.add(new JMenuItem(actions0); / 增加新菜单项menuFile.add(new JMenuItem(actions1);menuFile.add(new JMenuItem(actions2);menuFile.addSeparator();menuFile.add(new JMenuItem(actions7);menuEdit.add(new JMenuItem(actions3);menuEdit.add(new JMenuItem(actions4);menuEdit.add(new JMenuItem(actions5);menuAbout.add(new JMenuItem(actions6);menubar.add(menuFile); / 增加菜单menubar.add(menuEdit);menubar.add(menuFormat);menubar.add(menuFind);menubar.add(menuAbout);return menubar; / 返回菜单栏private JToolBar createJToolBar(Action actions) / 创建工具条JToolBar toolBar = new JToolBar(); / 实例化工具条for (int i = 0; i actions.length; i+) JButton bt = new JButton(actionsi); / 实例化新的按钮bt.setRequestFocusEnabled(false); / 设置不需要焦点bt.setFont(new Font(宋体, Font.PLAIN, 12);bt.setBackground(Color.pink);toolBar.add(bt); / 增加按钮到工具栏return toolBar; / 返回工具栏class NewAction extends AbstractAction / 新建文件命令public NewAction() super(新建文本);public void actionPerformed(ActionEvent e) textPane.setDocument(new DefaultStyledDocument(); / 清空文档class OpenAction extends AbstractAction / 打开文件命令public OpenAction() super(打开文本);public void actionPerformed(ActionEvent e) int i = filechooser.showOpenDialog(EditorDemo.this); / 显示打开文件对话框if (i = JFileChooser.APPROVE_OPTION) / 点击对话框中打开选项File f = filechooser.getSelectedFile(); / 得到选择的文件try InputStream is = new FileInputStream(f); / 得到文件输入流textPane.read(is, d); / 读入文件到文本窗格 catch (Exception ex) ex.printStackTrace(); / 输出出错信息class SaveAction extends AbstractAction / 保存命令public SaveAction() super(保存文本);public void actionPerformed(ActionEvent e) int i = filechooser.showSaveDialog(EditorDemo.this); / 显示保存文件对话框if (i = JFileChooser.APPROVE_OPTION) / 点击对话框中保存按钮File f = filechooser.getSelectedFile(); / 得到选择的文件try FileOutputStream out = new FileOutputStream(f); / 得到文件输出流out.write(textPane.getText().getBytes(); / 写出文件 catch (Exception ex) ex.printStackTrace(); / 输出出错信息class ExitAction extends AbstractAction / 退出命令public ExitAction() super(退出系统);public void actionPerformed(ActionEvent e) System.exit(0); / 退出程序class CutAction extends AbstractAction / 剪切命令public CutAction() super(剪切);public void actionPerformed(ActionEvent e) textPane.cut(); / 调用文本窗格的剪切命令class CopyAction extends AbstractAction / 拷贝命令public CopyAction() super(拷贝);public void actionPerformed(ActionEvent e) textPane.copy(); / 调用文本窗格的拷贝命令class PasteAction extends AbstractAction / 粘贴命令public PasteAction() super(粘贴);public void actionPerformed(ActionEvent e) textPane.paste(); / 调用文本窗格的粘贴命令class AboutAction extends AbstractAction / 关于选项命令public AboutAction() super(版本);public void actionPerformed(ActionEvent e) String str = 简易记事本nn版本：1.0n作者：郭孔明n主要功能：实现简单文本编辑。;JOptionPane.showMessageDialog(EditorDemo.this, str); / 显示软件信息public static void main(String args) LoginIn log = new LoginIn(new EditorDemo();log.setTitle(系统登录);log.setSize(360, 250);log.setVisible(true);class LoginIn extends JFrame EditorDemo edit;LoginIn login;JTextField f1;JTextField f2;JButton b1;JButton b2;String power;/ 表示权限String imgePath = e:/workspace/GUI/14.gif;JPanel p5;Image img = Toolkit.getDefaultToolkit().createImage(imgePath);LoginIn(EditorDemo edit) this.edit = edit;login = this;Container cp = getContentPane(); /初始化一个容器，用来在容器上添加一些控件Label l1 = new Label(用户：);Label l2 = new Label(密码：);JPanel p1 = new JPanel();JPanel p2 = new JPanel();JPanel p3 = new JPanel();JPanel p4 = new JPanel();p5 = new JPanel() protected void paintChildren(Graphics g) g.drawImage(img, 0, 0, this); /在指定位置并且按指定大小绘制指定的 Image 的指定部分super.paintChildren(g);f1 = new JTextField(15);f2 = new JPasswordField(15);b1 = new JButton(登录);b2 = new JButton(重置);p1.setBackground(Color.orange); /设置面板背景颜色p2.add(l1); /在面板中添加组件p2.add(f1);p2.setBorder(new MatteBorder(0, 0, 0, 0, Color.BLACK);p2.setBackground(Color.ORANGE);p3.add(l2);p3.add(f2);p3.setBackground(Color.ORANGE);p3.setBorder(new MatteBorder(0, 0, 0, 0, Color.BLACK);p4.add(b1);p4.add(b2);p4.setBorder(new MatteBorder(-3, -3, -3, -3, Color.CYAN);p4.setBackground(Color.ORANGE);p5.setLayout(new FlowLayout(FlowLayout.CENTER, 20, 20);p5.add(p2);p5.add(p3);p5.add(p4);cp.add(p5, BorderLayout.CENTER);b1.addActionListener(new Enter();b2.addActionListener(new ReWrite();addWindowListener(new winClose();class Enter implements ActionListener /实现登陆的类public void actionPerformed(ActionEvent e) if (f1.getText().equals(admin) & (f2.getText(