java做的简单记事本

import java.awt.*; import java.awt.event.*; import java.io.*; import java.awt.GraphicsEnvironment; import javax.swing.*; import java.util.*; import java.awt.Graphics; class MyTextPad extends Frame implements ActionListener { JTextArea text; JScrollPane jsp; PopupMenu popm; Date date=new Date(); String str=""; Dialog d,About; Choice c1,c2,c3; Button btn1,btn2; String Str1="宋体",Str2="普通",Str3="15"; int temp=0; int Red=0,Green=0,Blue=0; Label lFind = new Label("查找字符串:"); Label lReplace = new Label("替换字符串:"); TextField tFind = new TextField(10); TextField tReplace = new TextField(10); Button bFind = new Button("查找"); Button bReplace = new Button("替换"); Button bReplaceAll=new Button("替换所有"); Dialog dialog; Dialog findD; public MyTextPad(String str) { super(str); text=new JTextArea(); text.setFont(new Font("宋体",0,15)); jsp=new JScrollPane(text); add("Center",jsp); findD=new Dialog(this); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { dispose(); } } ); d=new Dialog(this,"字体选择"); d.setBounds(150,150,320,200); findD.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { findD.setVisible(false); } } ); d.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { d.setVisible(false); } } ); c1=new Choice();c2=new Choice();c3=new Choice(); GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment(); String fontName[]=ge.getAvailableFontFamilyNames(); for(int i=0;i<fontName.length;i++) { c1.add(fontName[i]); } c2.add("粗体"); c2.add("斜体"); c2.add("粗体与斜体"); c2.add("普通"); for(int i=8;i<100;i++) { c3.add(""+i); } Panel p1=new Panel(); Panel p2=new Panel(); p1.add(c1); p1.add(c2); p1.add(c3); btn1=new Button("确定"); btn2=new Button("取消"); d.setLayout(new GridLayout(5,3)); d.add(p1); p2.add(btn1); btn1.addActionListener(this); btn2.addActionListener(this); p2.add(btn2); d.add(p2); About=new Dialog(this,"关于"); About.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { About.setVisible(false); } } ); About.setBounds(300,300,150,150); About.add(new Label("蒋俊涛的计事体1.0版本")); Menu mn=new Menu("文件"); MenuItem miNewFile=new MenuItem("新建",new MenuShortcut(KeyEvent.VK_N)); MenuItem miOpenFile=new MenuItem("打开",new MenuShortcut(KeyEvent.VK_O)); MenuItem miSaveFile=new MenuItem("保存",new MenuShortcut(KeyEvent.VK_S)); MenuItem miExit=new MenuItem("退出",new MenuShortcut(KeyEvent.VK_E)); mn.add(miNewFile); mn.add(miOpenFile); mn.add(miSaveFile); mn.addSeparator(); mn.add(miExit); miNewFile.addActionListener(this); miOpenFile.addActionListener(this); miSaveFile.addActionListener(this); miExit.addActionListener(this); Menu mn1=new Menu("编辑"); MenuItem miSelectAll=new MenuItem("全选",new MenuShortcut(KeyEvent.VK_P)); MenuItem miClear=new MenuItem("清空",new MenuShortcut(KeyEvent.VK_S)); MenuItem miCopy=new MenuItem("复制",new MenuShortcut(KeyEvent.VK_C)); MenuItem miPaste=new MenuItem("粘贴",new MenuShortcut(KeyEvent.VK_V)); MenuItem miCut=new MenuItem("剪切",new MenuShortcut(KeyEvent.VK_T)); MenuItem miFind=new MenuItem("查找",new MenuShortcut(KeyEvent.VK_D)); MenuItem miReplace=new MenuItem("替换",new MenuShortcut(KeyEvent.VK_R)); MenuItem miAuto=new MenuItem("自动换行"); miAuto.addActionListener(this); mn1.add(miSelectAll); mn1.add(miClear); mn1.add(miCopy); mn1.add(miPaste); mn1.add(miCut); mn1.addSeparator(); mn1.add(miFind); mn1.add(miReplace); mn1.add(miAuto); miSelectAll.addActionListener(this); miClear.addActionListener(this); miCopy.addActionListener(this); miPaste.addActionListener(this); miCut.addActionListener(this); miFind.addActionListener(this); miReplace.addActionListener(this); Menu mn2=new Menu("格式"); MenuItem miFont=new MenuItem("字体",new MenuShortcut(KeyEvent.VK_F)); MenuItem miColor=new MenuItem("颜色选择",new MenuShortcut(KeyEvent.VK_K)); MenuItem miTime=new MenuItem("插入时间",new MenuShortcut(KeyEvent.VK_T)); miFont.addActionListener(this); miColor.addActionListener(this); miTime.addActionListener(this); mn2.add(miFont); mn2.add(miColor); mn2.add(miTime); Menu mn3=new Menu("帮助"); MenuItem miAbout=new MenuItem("关于",new MenuShortcut(KeyEvent.VK_A)); miAbout.addActionListener(this); mn3.add(miAbout); FileDialog findDlg = new FileDialog(this); Panel p5=new Panel(); Panel p6=new Panel(); Panel p7=new Panel(); p7.setLayout(new GridLayout(1,2,30,30)); p5.add(lFind); p5.add(tFind); p5.add(bFind); tFind.addActionListener(this); bFind.addActionListener(this); p6.add(lReplace); p6.add(tReplace); p7.add(bReplace); p7.add(bReplaceAll); p6.add(p7); tReplace.addActionListener(this); bReplace.addActionListener(this);bReplaceAll.addActionListener(this); findD.setLayout(new GridLayout(2,1,10,10)); findD.setResizable(false); findD.add(p5); findD.add(p6); findD.setBounds(100,100,260,190); //弹出PopupMenu popm=new PopupMenu(); MenuItem OpenFile=new MenuItem("打开"); MenuItem SaveFile=new MenuItem("保存"); MenuItem SelectAll=new MenuItem("全选"); MenuItem Copy=new MenuItem("复制"); MenuItem Paste=new MenuItem("粘贴"); MenuItem Cut=new MenuItem("剪切"); OpenFile.addActionListener(this); SaveFile.addActionListener(this); SelectAll.addActionListener(this); Copy.addActionListener(this); Paste.addActionListener(this); Cut.addActionListener(this); popm.add(OpenFile); popm.add(SaveFile); popm.add(SelectAll); popm.add(Copy); popm.add(Paste); popm.add(Cut); text.add(popm); text.addMouseListener(new MyMouseEvent(this)); MenuBar Bar=new MenuBar(); Bar.add(mn); Bar.add(mn1); Bar.add(mn2); Bar.add(mn3); setMenuBar(Bar); setSize(800,600); setVisible(true); } class MyMouseEvent extends MouseAdapter { MyTextPad myParentFrame; MyMouseEvent(MyTextPad myf) { myParentFrame=myf; } public void mouseReleased(MouseEvent e) { if(e.isPopupTrigger()) myParentFrame.popm.show((Component)e.getSource(),e.getX(),e.getY()); } } public void actionPerformed(ActionEvent e) { String strCmd=e.getActionCommand()