java实现Windows记事本

给大家分享下我之前的作品：

源文件下载：

　　链接：https://pan.baidu.com/s/1N45VsS9aVgmvhvYjRLxBrA
　　提取码：b9fg

源码：

　　JF_Notpad.java实现主要面板，在二级菜单可以实现java模板建立，可以后期自己添加：

import java.awt.*;

import javax.swing.*;

import javax.swing.event.*;    //导入菜单

import javax.swing.filechooser.FileNameExtensionFilter;

import java.util.Date;    //获取系统的时间

import java.text.SimpleDateFormat;    //控制系统的时间格式

import java.awt.event.*;

import java.io.*;

import java.util.regex.*;

public class JF_Notpad extends JFrame implements ActionListener,WindowListener{

    //menuBar

    private    JMenuBar mb;

    private JMenu file,edit,format,view,help;

    //menuToolBar

    private JToolBar tool;

    private    static int BUTTONWIDTH,BUTTONHEIGHT;

    private JButton create,unfold,copy,cut,paste,pasteShortcut,delete;

    //File

    //JMenu下还可以有二级菜单

    private JMenu newNot;

    //JMenuItem不可以有其他菜单

    private JMenuItem notpad,model,open,save,saveAs,pageSet,print,exit;

    //Edit

    private JMenuItem undoE,cutE,copyE,pasteE,deleteE,findE,findNextE,replaceE,goToE,selectAllE,timeDateE;

    //Format

    private JMenuItem     wordWrap,font;

    //View

    private JMenuItem     statusBar;

    //Help

    private JMenuItem     viewHelp,about;

    //leftSpace

    private JPanel leftSpace;

    //TextArea

    private JTextArea content;

    private JScrollPane scroll;

    //openUrl,saveUrl

    private static String openUrl="E:/notpad.txt";    //保存之前打开文件的路径

    private static String saveUrl="E:/notpad.txt";    //保存之前保存文件的路径

    private boolean saved=false;    //判断文件是否保存过

    //contentFont 字体

    private Font contentFont;

    //是否在打开保存面板后，还应该打开选择文件面板

    private boolean openFileBool=false;

    public static void main(String[] args) {

        JF_Notpad not=new JF_Notpad();

    }

    public static JButton changeIconSize(JButton button,String url,int width,int height,String tip){

        button.setBounds(0,0,width,height);

        ImageIcon buttonImg=new ImageIcon(url);

        //改变图片的大小

        Image temp=buttonImg.getImage().getScaledInstance(button.getWidth(), button.getHeight(), buttonImg.getImage().SCALE_DEFAULT);

        button=new JButton(new ImageIcon(temp));

        button.setToolTipText(tip);    //提示

        return button;

    }

    public static Image changeImageSize(String url,int width,int height){

        ImageIcon Img=new ImageIcon(url);

        //改变图片的大小

        Image temp=Img.getImage().getScaledInstance(width, height, Img.getImage().SCALE_DEFAULT);

        return temp;

    }

    JF_Notpad(){

        //menubar

        mb=new JMenuBar();

        file=new JMenu("File(F)");

        file.setMnemonic('F');

        edit=new JMenu("Edit(E)");

        edit.setMnemonic('E');

        format=new JMenu("Format(O)");

        format.setMnemonic('O');

        view =new JMenu("View(V)");

        view.setMnemonic('V');

        help=new JMenu("Help(H)");

        help.setMnemonic('H');

        //menuToolBar

        tool=new JToolBar();

        BUTTONWIDTH=22;

        BUTTONHEIGHT=22;

        create=new JButton();

        create=JF_Notpad.changeIconSize(create, "img/notpad/news.png", BUTTONWIDTH, BUTTONWIDTH, "New");

        unfold=new JButton();

        unfold=JF_Notpad.changeIconSize(unfold, "img/notpad/open.png", BUTTONWIDTH, BUTTONWIDTH, "Open");

        copy=new JButton();

        copy=JF_Notpad.changeIconSize(copy, "img/notpad/copy.png", BUTTONWIDTH, BUTTONWIDTH, "Copy");

        cut=new JButton();

        cut=JF_Notpad.changeIconSize(cut, "img/notpad/cut.png", BUTTONWIDTH, BUTTONWIDTH, "Cut");

        paste=new JButton();

        paste=JF_Notpad.changeIconSize(unfold, "img/notpad/paste.png", BUTTONWIDTH, BUTTONWIDTH, "Paste");

        pasteShortcut=new JButton();

        pasteShortcut=JF_Notpad.changeIconSize(pasteShortcut, "img/notpad/pasteShortcut.png", BUTTONWIDTH, BUTTONWIDTH, "PasteShortcut");

        delete=new JButton();

        delete=JF_Notpad.changeIconSize(delete, "img/notpad/delete.png", BUTTONWIDTH, BUTTONWIDTH, "Delete");

        //menuToolBarListener

        create.setActionCommand("notpad");

        create.addActionListener(this);

        unfold.setActionCommand("open");

        unfold.addActionListener(this);

        copy.setActionCommand("copyE");

        copy.addActionListener(this);

        cut.setActionCommand("cutE");

        cut.addActionListener(this);

        paste.setActionCommand("pasteE");

        paste.addActionListener(this);

        pasteShortcut.setActionCommand("pasteShortcut");

        pasteShortcut.addActionListener(this);

        delete.setActionCommand("deleteE");

        delete.addActionListener(this);

        //file

        newNot=new JMenu("New(N)");

        newNot.setMnemonic('N');

        ImageIcon icon=new ImageIcon(this.changeImageSize("img/notpad/logo.png", BUTTONWIDTH-5,BUTTONHEIGHT-5 ));

        notpad=new JMenuItem("Notpad",icon);

        model=new JMenuItem("Model");

        icon=new ImageIcon(this.changeImageSize("img/notpad/open.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        open=new JMenuItem("Open",icon);

        icon=new ImageIcon(this.changeImageSize("img/notpad/save.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        save=new JMenuItem("Save",icon);

        icon=new ImageIcon(this.changeImageSize("img/notpad/saveAs.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        saveAs=new JMenuItem("Save As...",icon);

        pageSet=new JMenuItem("PageSet");

        print=new JMenuItem("Print");

        icon=new ImageIcon(this.changeImageSize("img/notpad/exit.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        exit=new JMenuItem("Exit",icon);

        //FileListener

        notpad.setActionCommand("notpad");

        notpad.addActionListener(this);

        model.setActionCommand("model");

        model.addActionListener(this);

        open.setActionCommand("open");

        open.addActionListener(this);

        save.setActionCommand("save");

        save.addActionListener(this);

        saveAs.setActionCommand("saveAs");

        saveAs.addActionListener(this);

        pageSet.setActionCommand("pageSet");

        pageSet.addActionListener(this);

        print.setActionCommand("print");

        print.addActionListener(this);

        exit.setActionCommand("exit");

        exit.addActionListener(this);

        //Edit

        undoE=new JMenuItem("Undo");

        icon=new ImageIcon(this.changeImageSize("img/notpad/cut.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        cutE=new JMenuItem("Cut",icon);

        icon=new ImageIcon(this.changeImageSize("img/notpad/copy.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        copyE=new JMenuItem("Copy",icon);

        icon=new ImageIcon(this.changeImageSize("img/notpad/paste.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        pasteE=new JMenuItem("Paste",icon);

        icon=new ImageIcon(this.changeImageSize("img/notpad/delete.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        deleteE=new JMenuItem("Delete",icon);

        findE=new JMenuItem("Find...");

        findNextE=new JMenuItem("Find Next");

        replaceE=new JMenuItem("Replace...");

        goToE=new JMenuItem("Go To..");

        selectAllE=new JMenuItem("Select All");

        timeDateE=new JMenuItem("Time/Data");

        //EditListener

        undoE.setActionCommand("undoE");

        undoE.addActionListener(this);

        cutE.setActionCommand("cutE");

        cutE.addActionListener(this);

        copyE.setActionCommand("copyE");

        copyE.addActionListener(this);

        pasteE.setActionCommand("pasteE");

        pasteE.addActionListener(this);

        deleteE.setActionCommand("deleteE");

        deleteE.addActionListener(this);

        findE.setActionCommand("findE");

        findE.addActionListener(this);

        findNextE.setActionCommand("findNextE");

        findNextE.addActionListener(this);

        replaceE.setActionCommand("replaceE");

        replaceE.addActionListener(this);

        goToE.setActionCommand("goToE");

        goToE.addActionListener(this);

        selectAllE.setActionCommand("selectAllE");

        selectAllE.addActionListener(this);

        timeDateE.setActionCommand("timeDateE");

        timeDateE.addActionListener(this);

        //Format

        icon=new ImageIcon(this.changeImageSize("img/notpad/wordWrap.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        wordWrap=new JMenuItem("Word Wrap",icon);

        icon=new ImageIcon(this.changeImageSize("img/notpad/font.png", BUTTONWIDTH-8, BUTTONHEIGHT-8));

        font=new JMenuItem("Font...",icon);

        //FormatListener

        wordWrap.setActionCommand("wordWrap");

        wordWrap.addActionListener(this);

        font.setActionCommand("font");

        font.addActionListener(this);

        //View

        statusBar=new JMenuItem("Status Bar");

        //ViewListener

        statusBar.setActionCommand("statusBar");

        statusBar.addActionListener(this);

        //Help

        viewHelp=new JMenuItem("View Help");

        icon=new ImageIcon(this.changeImageSize("img/notpad/about.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

        about=new JMenuItem("About NotePad",icon);

        //HelpListener

        viewHelp.setActionCommand("viewHelp");

        viewHelp.addActionListener(this);

        about.setActionCommand("about");

        about.addActionListener(this);

        //leftSpace

        leftSpace=new JPanel();

        //contentFont

        contentFont=new Font("KaiTi",Font.PLAIN,20);

        //textArea

        content=new JTextArea();

        content.setFont(contentFont);

        scroll=new JScrollPane(content);

        //scroll.setHorizontalScrollBar(content);

        //openUrl,saveUrl

//        openUrl="E:/notpad.txt";

//        saveUrl="E:/notpad.txt";

//        saved=false;

        //saveFilePanel

//        Save saveF=new Save("Save",this);

        //添加组件，从下一级开始装

        newNot.add(notpad);    newNot.add(model);

        file.add(newNot);    file.add(open);    file.add(save);    file.add(saveAs);    file.addSeparator();    file.add(pageSet);    file.add(print);    file.addSeparator();    file.add(exit);

        edit.add(undoE);

        edit.addSeparator();

        edit.add(cutE);

        edit.add(copyE);

        edit.add(pasteE);

        edit.add(deleteE);

        edit.addSeparator();

        edit.add(findE);

        edit.add(findNextE);

        edit.add(replaceE);

        edit.add(goToE);

        edit.addSeparator();

        edit.add(selectAllE);

        edit.add(timeDateE);

        format.add(wordWrap);

        format.add(font);

        view.add(statusBar);

        help.add(viewHelp);

        help.addSeparator();

        help.add(about);

        mb.add(file);    mb.add(edit); mb.add(format);    mb.add(view);    mb.add(help);

        tool.add(create);

        tool.add(unfold);

        tool.add(copy);

        tool.add(cut);

        tool.add(paste);

        tool.add(pasteShortcut);

        tool.add(delete);

        this.setJMenuBar(mb);

        this.add(tool,BorderLayout.NORTH);

        this.add(leftSpace,BorderLayout.WEST);

        this.add(scroll);

        this.setTitle("Notpad");

        this.setIconImage(new ImageIcon("img/notpad/logo.png").getImage());

        this.setLocation(300,300);

        this.setSize(400,400);

        this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);

        this.setVisible(true);

    }

    private String origContent=null;    //保存一开始的文件或者保存过的文件

    private String copyContent=null;

    @Override

    public void actionPerformed(ActionEvent e) {

        switch(e.getActionCommand()){

        case "notpad":{

            System.out.println("notpad");

            this.isChangeFile("txt");

        }break;

        case "model":{

            System.out.println("model");

            this.isChangeFile("java");

        }break;

        case "open":{

            System.out.println("open");

            //防止第一次打开空文件时，还没保存

            if(this.origContent==null){

                this.saved=true;

            }

            if(saved){

                this.openFilePanel();

            }else{

                Save saveF=new Save("Save",this);

                this.openFilePanel();

            }

        }break;

        case "save":{

            System.out.println("save");

            this.saveFile();

            //this.setSaved(true);

        }break;

        case "saveAs":{

            System.out.println("saveAs");

            String str=content.getText();

            //选择保存文件的路径

            JFileChooser fileChoose=null;

            if(saveUrl==null){

                fileChoose=new JFileChooser();

            }else{

                fileChoose=new JFileChooser(saveUrl);

            }

            FileNameExtensionFilter filter=new FileNameExtensionFilter("txt & java","java","txt");    //设置可以识别的文件

            fileChoose.setFileFilter(filter);

            fileChoose.setDialogTitle("Save File");

            fileChoose.showSaveDialog(save);

            fileChoose.setVisible(true);

            File outFile =fileChoose.getSelectedFile();

            saveUrl=fileChoose.getSelectedFile().getPath();

            PrintStream p=null;

            try{

                p=new PrintStream(outFile);

                System.setOut(p);

                System.out.print(str);

            }catch(Exception a){

                System.out.println("SaveAS File Error!!");

            }finally{

                p.close();

            }

        }break;

        case "pageSet":{

            System.out.println("pageSet");

        }break;

        case "print":{

            System.out.println("print");

        }break;

        case "exit":{

            System.out.println("exit");

            System.exit(-1);

        }break;

        case "undoE":{

            System.out.println("undoE");

        }break;

        case "cutE":{

            System.out.println("cutE");

            if(this.content.getSelectedText()!=null){

                this.copyContent=this.content.getSelectedText();

            }

            this.content.replaceSelection("");

        }break;

        case "copyE":{

            System.out.println("copyE");

            if(this.content.getSelectedText()!=null){

                this.copyContent=this.content.getSelectedText();

            }

        }break;

        case "pasteE":{

            System.out.println("pasteE");

            if(copyContent!=null){

                this.content.replaceRange("", content.getSelectionStart(), content.getSelectionEnd());

            }

            this.content.insert(copyContent, this.content.getSelectionStart());

        }break;

        case "deleteE":{

            System.out.println("deleteE");

            this.content.replaceSelection("");

        }break;

        case "findE":{

            System.out.println("findE");

        }break;

        case "findNextE":{

            System.out.println("findNextE");

        }break;

        case "replaceE":{

            System.out.println("replaceE");

        }break;

        case "goToE":{

            System.out.println("goToE");

        }break;

        case "selectAllE":{

            System.out.println("selectAllE");

            this.content.selectAll();

        }break;

        case "timeDateE":{

            System.out.println("timeDateE");

            SimpleDateFormat df=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

            //System.out.println(df.format(new Date()));

            this.content.insert(df.format(new Date()), content.getSelectionStart());

        }break;

        case "wordWrap":{

            System.out.println("wordWrap");

            ImageIcon icon;

            if(this.content.getLineWrap()){

                this.content.setLineWrap(false);

                icon=new ImageIcon(this.changeImageSize("img/notpad/wordWrap.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

                this.wordWrap.setIcon(icon);

            }else{

                this.content.setLineWrap(true);

                icon=new ImageIcon(this.changeImageSize("img/notpad/wordWrapNo.png", BUTTONWIDTH-5, BUTTONHEIGHT-5));

                this.wordWrap.setIcon(icon);

            }

        }break;

        case "font":{

            System.out.println("font");

            FontPanel f=new FontPanel("Font",this);

//            this.content.setFont(new Font(f.getFontN(),f.getFontSytleN(),f.getSizeN()));

        }break;

        case "statusBar":{

            System.out.println("statusBar");

        }break;

        case "viewHelp":{

            System.out.println("viewHelp");

        }break;

        case "about":{

            System.out.println("about");

            About a=new About("About","1.0","feiquan","228332xxxxx@qq.com","xxx-xxxx-xxxx","https://www.baidu.com");

        }break;

        case "pasteShortcut":{

            System.out.println("pasteShortcut");

        }break;

        }

    }

    @Override

    public void windowOpened(WindowEvent e) {

        // TODO Auto-generated method stub

    }

    @Override

    public void windowClosing(WindowEvent e) {

        // TODO Auto-generated method stub

        System.out .println("弹出是否选择保存的对话框");

        if(saved){

            Save saveF=new Save("Save",this);

        }

    }

    @Override

    public void windowClosed(WindowEvent e) {

        // TODO Auto-generated method stub

    }

    @Override

    public void windowIconified(WindowEvent e) {

        // TODO Auto-generated method stub

    }

    @Override

    public void windowDeiconified(WindowEvent e) {

        // TODO Auto-generated method stub

    }

    @Override

    public void windowActivated(WindowEvent e) {

        // TODO Auto-generated method stub

    }

    @Override

    public void windowDeactivated(WindowEvent e) {

        // TODO Auto-generated method stub

    }

    public static String getOpenUrl() {

        return openUrl;

    }

    public static void setOpenUrl(String openUrl) {

        JF_Notpad.openUrl = openUrl;

    }

    public static String getSaveUrl() {

        return saveUrl;

    }

    public static void setSaveUrl(String saveUrl) {

        JF_Notpad.saveUrl = saveUrl;

    }

    //保存文件其中包含了，判断文件是否存在

    public void saveFile(){

        String str=this.content.getText();

        System.out.println("正在保存：\n"+str);

        //判断文件是否存在,不存在则创建文件

        File file=new File(openUrl);

        if(!file.exists()){

            try{

                file.createNewFile();

            }catch(Exception a){

                System.out.println("创建文件 "+file.getAbsolutePath()+" 失败！！");

            }

        }

        PrintStream p=null;

        try{

            p=new PrintStream(new File(openUrl));

            System.setOut(p);

            System.out.print(str);

            saved=true;

        }catch(Exception a){

            System.out.println("Save File Error!!");

            saved=false;

        }finally{

            p.close();

        }

    }

    //判断文件是否修改过，并根据传入的属性判断新建那个文件

    public void isChangeFile(String properties){

        System.out.println("是否保存文件："+saved);

        //判断文件是否修改过

        if(!(this.content.getText().equals(origContent))){

            saved=false;

        }

        //如果内容为空，也视为已经保存

        if(this.content.getText()==null||this.content.getText().equals(""))saved=true;

        System.out.println("判断后是否保存文件："+saved);

        if(saved){

            switch(properties){

            case "txt":{

                this.content.setText("");

                this.setTitle("notpad");

                origContent="";

            }break;

            case "java":{

                this.setTitle("notpad");

                String str="public class Notpad {\n\tpublic static void main (String[] ages) {\n\t\t\n\t}\n}";

                this.content.setText(str);

                origContent=str;

            }break;

            }

        }else{

            System.out .println("弹出是否选择保存的对话框");

            Save saveF=new Save("Save",this);

        }

        System.out.println("经过保存面板后是否保存文件："+saved);

    }

    //打开选择打开文件面板，并选择文件

    public void openFilePanel(){

        origContent=this.content.getText();

        //显示选择文件面板

        JFileChooser fileChoose=null;

        if(openUrl==null){

            fileChoose=new JFileChooser();

        }else{

            fileChoose=new JFileChooser(openUrl);

        }

        FileNameExtensionFilter filter=new FileNameExtensionFilter("txt & java","java","txt");

        fileChoose.setFileFilter(filter);

        fileChoose.setDialogTitle("Open File");

        fileChoose.showOpenDialog(null);

        fileChoose.setVisible(true);

        //得到文件

        String url=fileChoose.getSelectedFile().getAbsolutePath();    //得到选择文件的路径

        //设置保存面板显示的路径

        JF_Notpad.setOpenUrl(url);

        Save saveF=new Save("Save",this);

        saveF.setVisible(false);

        saveF.setUrl(url);

        JLabel temp=saveF.getUrlL();

        temp.setText(url+" ?");

        saveF.setUrlL(temp);

        String name=fileChoose.getSelectedFile().getName();

        this.setTitle(name+" - Notpad");    //设置主窗口标题

        //文件流

        FileReader fRead=null;     BufferedReader buffRead=null;

        try{

            fRead=new FileReader(openUrl);

            buffRead=new BufferedReader(fRead);

            String str=""; String readLine="";

            readLine=buffRead.readLine();

            while(readLine!=null){

                str=str+readLine+"\r\n";

                readLine=buffRead.readLine();

            }

            content.setText(str);

            origContent=str;

        }catch(Exception a){

            System.out.println("Open file error!!");

        }finally{

            try{

                fRead.close();

                buffRead.close();

            }catch(Exception b){

                System.out.println("Open file stream error!!");

            }

        }

    }

    public boolean isSaved() {

        return saved;

    }

    public void setSaved(boolean saved) {

        this.saved = saved;

    }

    public boolean getOpenFileBool() {

        return openFileBool;

    }

    public void setOpenFileBool(boolean openFileBool) {

        this.openFileBool = openFileBool;

    }

    public String getOrigContent() {

        return origContent;

    }

    public void setOrigContent(String origContent) {

        this.origContent = origContent;

    }

    public JTextArea getContent() {

        return content;

    }

    public void setContent(JTextArea content) {

        this.content = content;

    }

}

JF_Notpad.java

　　FontPanel.java实现，字体面板：

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public class FontPanel extends JFrame implements ActionListener{

    private JList list1,list2,list3;

    private JScrollPane scroll1,scroll2,scroll3;

    private JLabel l1,l2,l3,l4,l5,l6,simpleL;

    private JButton ok,cancel,use;

    private JPanel p,scrollP,p2,space,space2,simple,mainP,bottomP;

    private  static String fontN="KaiTi";

    private static int fontSytleN=0,sizeN=20;

    private  JF_Notpad notpad ;

//    public static void main (String[] ages) {

//        FontPanel f=new FontPanel("Font");

//

//    }

    FontPanel(String title,JF_Notpad notpad){

        this.notpad=notpad;

        String[] s={"Font","FontStyle","Size"};

        //获取系统字体

        String[] font=GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();

        String style=" PLAIN,BOLD, ITALIC ";

        String[] fontStyle=style.split(",");

        String sizeStr="";

        for(int i=8;i<73;i++){

            sizeStr=sizeStr+i+",";

        }

        String[] size=sizeStr.split(",");

        int count=5;

        list1=new JList(font);

        list1.setVisibleRowCount(count);

        list2=new JList(fontStyle);

        list2.setVisibleRowCount(count);

        list3=new JList(size);

        list3.setVisibleRowCount(count);

        list1.setSelectedIndex(153);

        list2.setSelectedIndex(0);

        list3.setSelectedIndex(12);

        scroll1=new JScrollPane(list1);

        scroll2=new JScrollPane(list2);

        scroll3=new JScrollPane(list3);

        l1=new JLabel(s[0],JLabel.CENTER);

        l2=new JLabel(s[1],JLabel.CENTER);

        l3=new JLabel(s[2],JLabel.CENTER);

        l4=new JLabel(this.fontN,JLabel.CENTER);

        l5=new JLabel(fontStyle[this.fontSytleN],JLabel.CENTER);

        l6=new JLabel(String.valueOf(this.sizeN),JLabel.CENTER);

        ok=new JButton("OK");     cancel=new JButton("Cancel");

        ok.setActionCommand("OK");     ok.addActionListener(this);

        cancel.setActionCommand("Cancel");    cancel.addActionListener(this);

        p=new JPanel();

        p.setLayout(new GridLayout(2,3,10,10));

        p.add(l1);    p.add(l2);    p.add(l3);

        p.add(l4);    p.add(l5);    p.add(l6);

        scrollP=new JPanel(new GridLayout(1,3,10,10));

        scrollP.add(scroll1);    scrollP.add(scroll2);    scrollP.add(scroll3);

        simple=new JPanel();

        simple.setLayout(new FlowLayout(FlowLayout.LEFT));

        simpleL=new JLabel("AaBbYyZz");

        simpleL.setFont(new Font(FontPanel.fontN,FontPanel.fontSytleN,FontPanel.sizeN));

        use=new JButton("Simple");

        use.setActionCommand("Simple");

        use.addActionListener(this);

        simple.add(use);    simple.add(new JLabel("   "));    simple.add(simpleL);

        p2=new JPanel();

        p2.setLayout(new FlowLayout(FlowLayout.RIGHT));

        p2.add(ok);    p2.add(cancel);

        space=new JPanel();

        space2=new JPanel();

        bottomP=new JPanel(new GridLayout(2,1,10,10));

        bottomP.add(simple);    bottomP.add(p2);

        mainP =new JPanel(new GridLayout(3,1,10,10));

        mainP.add(p);    mainP.add(scrollP);     mainP.add(bottomP);

        this.add(mainP);

        this.add(p2,BorderLayout.SOUTH);

        this.add(space,BorderLayout.WEST);

        this.add(space2,BorderLayout.EAST);

        this.setTitle(title);

        this.setIconImage(new ImageIcon("img/notpad/font.png").getImage());

        this.setLocation(300,300);

        this.setSize(500,640);

        this.setVisible(true);

        this.setResizable(false);

//        this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);

    }

    @Override

    public void actionPerformed(ActionEvent e) {

        switch(e.getActionCommand()){

        case "OK":{

            this.setFontN(this.list1.getSelectedValue().toString());

            this.setFontSytleN(this.list2.getSelectedIndex());

            this.setSizeN(this.list3.getSelectedIndex()+8);

//            System.out.println(this.getFontN()+"\t"+this.getFontSytleN()+"\t"+this.getSizeN());

            this.setVisible(false);

            Font f=new Font(FontPanel.fontN,FontPanel.fontSytleN,FontPanel.sizeN);

            JTextArea t=notpad.getContent();

            t.setFont(f);

            notpad.setContent(t);

        }break;

        case "Cancel":{

            this.setVisible(false);

        }break;

        case "Simple":{

            this.simpleL.setFont(new Font(this.list1.getSelectedValue().toString(),this.list2.getSelectedIndex(),this.list3.getSelectedIndex()+8));

        }break;

        }

    }

    public static String getFontN() {

        return fontN;

    }

    public static void setFontN(String fontN) {

        FontPanel.fontN = fontN;

    }

    public static int getFontSytleN() {

        return fontSytleN;

    }

    public static void setFontSytleN(int fontSytleN) {

        FontPanel.fontSytleN = fontSytleN;

    }

    public static int getSizeN() {

        return sizeN;

    }

    public static void setSizeN(int sizeN) {

        FontPanel.sizeN = sizeN;

    }

}

FontPanel.java

　　About.java实现关于面板：　

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public  class About extends JFrame implements ActionListener {

    private JLabel [] l={null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null};

    private JPanel p,p2;

    private JButton b;

    About(String title,String version,String copyrigth,String qqEmil,String relative,String href){

        String [] s={"","","Version:",version," "," ","@CopyRight：",copyrigth,"QQ邮箱：",qqEmil,"联系方式：",relative,"","<html><a href='"+href+"'>更多</a></html>>","",""};

        JPanel p=new JPanel();

        p.setLayout(new GridLayout((int)l.length/2,2));

        for(int i=0;i<l.length;i++){

            if(i%2==0){

                l[i]=new JLabel(s[i],JLabel.CENTER);

            }else{

                l[i]=new JLabel(s[i],JLabel.LEFT) ;

            }

            //设置手型

            if(i==13){

                l[i].setCursor(Cursor.getDefaultCursor().getPredefinedCursor(Cursor.HAND_CURSOR));

            }

            p.add(l[i]);

        }

        System.out.println(l.length);

        b=new JButton("OK");

        b.setActionCommand("OK");

        b.addActionListener(this);

        p2=new JPanel();

        p2.setLayout(new FlowLayout(FlowLayout.RIGHT));

        p2.add(b);

        p2.add(new JLabel("          "));

        this.add(p);

        this.add(p2,BorderLayout.SOUTH);

        this.setTitle(title);

        this.setIconImage(new ImageIcon("img/notpad/about.png").getImage());

        this.setLocation(300,300);

        this.setSize(350,300);

        this.setVisible(true);

        this.setResizable(false);

        //this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);

    }

    public void actionPerformed(ActionEvent e)

    {

        System.out.println(e);

    }

}

About.java

　　　　Save.java实现文件的保存读取：

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class Save extends JFrame implements ActionListener {

    private JLabel l,urlL;

    private JButton save,noSave,cancel;

    private String url;

    private JPanel bottomP,contentP;

    private Font font;

    private JF_Notpad notpad;

//    public static void main(String[] ages){

//        Save s=new Save("Save");

//    }

    Save(String title,JF_Notpad notpad){

        this.notpad=notpad;

        font=new Font("",Font.BOLD,14);

        url=notpad.getOpenUrl()+" ?";

        urlL=new JLabel(url,JLabel.CENTER);

        urlL.setFont(font);

        l=new JLabel("Do you want to save changes to ",JLabel.CENTER);

        l.setFont(font);

        contentP=new JPanel(new GridLayout(2,1));

        contentP.add(l);    contentP.add(urlL);

        save=new JButton("Save");

        noSave=new JButton("Don't Save");

        cancel=new JButton("Cancel");

        save.setActionCommand("Save");

        noSave.setActionCommand("noSave");

        cancel.setActionCommand("Cancel");

        save.addActionListener(this);

        noSave.addActionListener(this);

        cancel.addActionListener(this);

        bottomP=new JPanel(new FlowLayout(FlowLayout.RIGHT));

        bottomP.add(save);    bottomP.add(noSave);    bottomP.add(cancel);

        this.add(contentP);

        this.add(bottomP,BorderLayout.SOUTH);

        this.setTitle(title);

        this.setLocation(300,300);

        this.setSize(400,170);

        this.setResizable(false);

//        this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);

        this.setVisible(true);

    }

    @Override

    public void actionPerformed(ActionEvent e) {

        switch(e.getActionCommand()){

        case "Save":{

            notpad.saveFile();

            notpad.setSaved(true);

            notpad.setOrigContent(notpad.getContent().getText());

            this.setVisible(false);

        }break;

        case "noSave":{

            notpad.setOrigContent(notpad.getContent().getText());

            notpad.setSaved(true);

            this.setVisible(false);

        }break;

        case "Cancel":{

            notpad.setSaved(false);

            this.setVisible(false);

        }break;

        }

    }

    public String getUrl() {

        return url;

    }

    public void setUrl(String url) {

        this.url = url;

    }

    public JLabel getUrlL() {

        return urlL;

    }

    public void setUrlL(JLabel urlL) {

        this.urlL = urlL;

    }

}

Save.java

版权

作者：feiquan

出处：http://www.cnblogs.com/feiquan/

版权声明：本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。

大家写文都不容易，请尊重劳动成果~ 这里谢谢大家啦(*/ω＼*)

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