java计事本代码 java事务代码

记事本写java代码怎么运行

你好，很高兴回答你的问题。

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首先，你需要安装jdk并配置环境变量。

然后，在命令行中，用javac命令编译你用记事本编写的代码。

下一步，在命令行中，用java命令执行编译后的结果。

用java写的日历记事本代码？

详细代码

//CalendarWindow类：

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.util.*;

import java.io.*;

public class CalendarWindow extends JFrame implements ActionListener,

MouseListener,FocusListener{

int year,month,day;

CalendarMessage calendarMessage;

CalendarPad calendarPad;

NotePad notePad;

JTextField showYear,showMonth;

JTextField [] showDay;

CalendarImage calendarImage;

Clock clock;

JButton nextYear,previousYear,nextMonth,previousMonth;

JButton saveDailyRecord,deleteDailyRecord,readDailyRecord;

File dir;

Color backColor=Color.gray;

public CalendarWindow(){

dir=new File("./dailyRecord");

dir.mkdir();

showDay=new JTextField[42];

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

showDay[i]=new JTextField();

showDay[i].setBackground(backColor);

showDay[i].setLayout(new GridLayout(3,3));

showDay[i].addMouseListener(this);

showDay[i].addFocusListener(this);

}

calendarMessage=new CalendarMessage();

calendarPad=new CalendarPad();

notePad=new NotePad();

Calendar calendar=Calendar.getInstance();

calendar.setTime(new Date());

year=calendar.get(Calendar.YEAR);

month=calendar.get(Calendar.MONTH)+1;

day=calendar.get(Calendar.DAY_OF_MONTH);

calendarMessage.setYear(year);

calendarMessage.setMonth(month);

calendarMessage.setDay(day);

calendarPad.setCalendarMessage(calendarMessage);

calendarPad.setShowDayTextField(showDay);

notePad.setShowMessage(year,month,day);

calendarPad.showMonthCalendar();

doMark(); //给有日志的号码做标记,见后面的doMark()方法

calendarImage=new CalendarImage();

calendarImage.setImageFile(new File("sea.jpg"));

clock=new Clock();

JSplitPane splitV1=

new JSplitPane(JSplitPane.VERTICAL_SPLIT,calendarPad,calendarImage);

JSplitPane splitV2=

new JSplitPane(JSplitPane.VERTICAL_SPLIT,notePad,clock);

JSplitPane splitH=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,splitV1,splitV2);

add(splitH,BorderLayout.CENTER);

showYear=new JTextField(""+year,6);

showYear.setFont(new Font("TimesRoman",Font.BOLD,12));

showYear.setHorizontalAlignment(JTextField.CENTER);

showMonth=new JTextField(" "+month,4);

showMonth.setFont(new Font("TimesRoman",Font.BOLD,12));

showMonth.setHorizontalAlignment(JTextField.CENTER);

nextYear=new JButton("下年");

previousYear=new JButton("上年");

nextMonth=new JButton("下月");

previousMonth=new JButton("上月");

nextYear.addActionListener(this);

previousYear.addActionListener(this);

nextMonth.addActionListener(this);

previousMonth.addActionListener(this);

showYear.addActionListener(this);

JPanel north=new JPanel();

north.add(previousYear);

north.add(showYear);

north.add(nextYear);

north.add(previousMonth);

north.add(showMonth);

north.add(nextMonth);

add(north,BorderLayout.NORTH);

saveDailyRecord=new JButton("保存日志") ;

deleteDailyRecord=new JButton("删除日志");

readDailyRecord=new JButton("读取日志");

saveDailyRecord.addActionListener(this);

deleteDailyRecord.addActionListener(this);

readDailyRecord.addActionListener(this);

JPanel pSouth=new JPanel();

pSouth.add(saveDailyRecord);

pSouth.add(deleteDailyRecord);

pSouth.add(readDailyRecord);

add(pSouth,BorderLayout.SOUTH);

setVisible(true);//根据参数 b 的值显示或隐藏此 Window

setBounds(60,60,660,480);

validate();//验证此容器及其所有子组件

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //设置用户在此窗体上发起 "close" 时默认执行的操作

}

public void actionPerformed(ActionEvent e){

if(e.getSource()==nextYear){

year++;

showYear.setText(""+year);

calendarMessage.setYear(year);

calendarPad.setCalendarMessage(calendarMessage);

calendarPad.showMonthCalendar();

notePad.setShowMessage(year,month,day);

doMark();

}

else if(e.getSource()==previousYear){

year--;

showYear.setText(""+year);

calendarMessage.setYear(year);

calendarPad.setCalendarMessage(calendarMessage);

calendarPad.showMonthCalendar();

notePad.setShowMessage(year,month,day);

doMark();

}

else if(e.getSource()==nextMonth){

month++;

if(month12) month=1;

showMonth.setText(" "+month);

calendarMessage.setMonth(month);

calendarPad.setCalendarMessage(calendarMessage);

calendarPad.showMonthCalendar();

notePad.setShowMessage(year,month,day);

doMark();

}

else if(e.getSource()==previousMonth){

month--;

if(month1) month=12;

showMonth.setText(" "+month);

calendarMessage.setMonth(month);

calendarPad.setCalendarMessage(calendarMessage);

calendarPad.showMonthCalendar();

notePad.setShowMessage(year,month,day);

doMark();

}

else if(e.getSource()==showYear){

String s=showYear.getText().trim();

char a[]=s.toCharArray();

boolean boo=false;

for(int i=0;ia.length;i++)

if(!(Character.isDigit(a[i])))

boo=true;

if(boo==true) //弹出“警告”消息对话框

JOptionPane.showMessageDialog(this,"您输入了非法年份","警告", JOptionPane.WARNING_MESSAGE);

else if(boo==false)

year=Integer.parseInt(s);

showYear.setText(""+year);

calendarMessage.setYear(year);

calendarPad.setCalendarMessage(calendarMessage);

calendarPad.showMonthCalendar();

notePad.setShowMessage(year,month,day);

doMark();

}

else if(e.getSource()==saveDailyRecord){

notePad.save(dir,year,month,day);

doMark();

}

else if(e.getSource()==deleteDailyRecord){

notePad.delete(dir,year,month,day);

doMark();

}

else if(e.getSource()==readDailyRecord)

notePad.read(dir,year,month,day);

}

public void mousePressed(MouseEvent e){

JTextField text=(JTextField)e.getSource();

String str=text.getText().trim();

try{ day=Integer.parseInt(str);

}

catch(NumberFormatException exp){

}

calendarMessage.setDay(day);

notePad.setShowMessage(year,month,day);

}

public void mouseReleased(MouseEvent e){}

public void mouseEntered(MouseEvent e) {}

public void mouseExited(MouseEvent e) {}

public void mouseClicked(MouseEvent e) {}

public void focusGained(FocusEvent e){

Component com=(Component)e.getSource();

com.setBackground(Color.red);

}

public void focusLost(FocusEvent e){

Component com=(Component)e.getSource();

com.setBackground(backColor);

}

public void doMark(){

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

showDay[i].removeAll();

String str=showDay[i].getText().trim();

try{

int n=Integer.parseInt(str);

if(isHaveDailyRecord(n)==true){ //见后面的isHaveDailyRecord()方法

JLabel mess=new JLabel("存");

mess.setFont(new Font("TimesRoman",Font.PLAIN,11));

mess.setForeground(Color.black) ;

showDay[i].add(mess);

} }

catch(Exception exp){}

}

calendarPad.repaint();

calendarPad.validate();

}

public boolean isHaveDailyRecord(int n){

String key=""+year+""+month+""+n;

String [] dayFile=dir.list();

boolean boo=false;

for(int k=0;kdayFile.length;k++){

if(dayFile[k].equals(key+".txt")){

boo=true;

break;

} }

return boo;

}

public static void main(String args[]){

new CalendarWindow();

}

}

//CalendarPad类：

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.util.*;

public class CalendarPad extends JPanel{

int year,month,day;

CalendarMessage calendarMessage;

JTextField [] showDay;

JLabel title[];

String [] 星期={"SUN/日","MON/一","TUE/二","WED/三","THU/四","FRI/五","SAT/六"};

JPanel north,center;

public CalendarPad(){

setLayout(new BorderLayout());

north=new JPanel();

north.setLayout(new GridLayout(1,7));

center=new JPanel();

center.setLayout(new GridLayout(6,7));

add(center,BorderLayout.CENTER);

add(north,BorderLayout.NORTH);

title=new JLabel[7];

for(int j=0;j7;j++){

title[j]=new JLabel();

title[j].setFont(new Font("TimesRoman",Font.BOLD,12));

title[j].setText(星期[j]);

title[j].setHorizontalAlignment(JLabel.CENTER);

title[j].setBorder(BorderFactory.createRaisedBevelBorder());

north.add(title[j]);

}

title[0].setForeground(Color.red);

title[6].setForeground(Color.blue);

}

public void setShowDayTextField(JTextField [] text){

showDay=text;

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

showDay[i].setFont(new Font("TimesRoman",Font.BOLD,15));

showDay[i].setHorizontalAlignment(JTextField.CENTER);

showDay[i].setEditable(false);

center.add(showDay[i]);

}

}

public void setCalendarMessage(CalendarMessage calendarMessage){

this.calendarMessage=calendarMessage;

}

public void showMonthCalendar(){

String [] a=calendarMessage.getMonthCalendar();

for(int i=0;i42;i++)

showDay[i].setText(a[i]);

validate();

}

}

电脑怎么用记事本写Java程序并运行？

1. 新建一个记事本，后缀名是  .java  ；然后在里面写一段java的代码，如图：

2.把写好的java文件丢进D盘，就是第一步给出的那个class文件；

3. 打开dos界面 开始-〉运行-〉cmd-〉 这个是命令行模式,选择D盘，如图：

4.选择D盘之后，在命令提示符中输入“javac 文件名.java”,我的文件名为java，所以输入javac java.java然后回车，等待编译。这时候你就会发现它提示说javac不是内部文件。接下来就是java环境变量设置的问题了；

5.下载一个jdk执行默认安装。例如我下的jdk版本是： jdk-6u10-rc2-bin-b32-windows-i586-p-12_sep_2008.exe；

6.配置环境：右击我的电脑点属性，进去点高级就能看到环境变量。点进去就能设置你的系统变量了，如图：

6-1。变量名：classpath    变量值：(.;C:\Program Files\Java\jdk1.6.0_10\lib;)括号里面都是 （主要我们在编译运行程序的时候通过classpath可以帮助我们找到一些需要的系统类，“.”号是表示当前路径；“;”号是用来隔开多个变量值，如果你的系统里面已经有classpath环 境变量，就不用新建了，直接加“;”号，在后面加新值）；如图所示

java记事本源代码

给你个做好了的Java的源程序的记事本，自己看看就行了的，不怎么难的···

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import javax.swing.*;

public class MyNotepad implements ActionListener{

private JFrame frame=new JFrame("新记事本");

private JTextArea jta=new JTextArea();

private String result="";

private boolean flag=true;

private File f;

private JButton jb=new JButton("开始");

private JTextField jtf=new JTextField(15);

private JTextField jt=new JTextField(15);

private JButton jbt=new JButton("替换为");

private JButton jba=new JButton("全部替换");

private Icon ic=new ImageIcon("D:\\java课堂笔记\\GUI\\11.gif");

private String value;

private int start=0;

private JFrame jf=new JFrame("查找");

private JFrame jfc=new JFrame("替换");

@Override

public void actionPerformed(ActionEvent e) {

String comm=e.getActionCommand();

if("新建".equals(comm)){

if(!(frame.getTitle().equals("新记事本"))){

if(!flag){

write();

newNew();

}else{

JFileChooser jfc=new JFileChooser("D:\\java课堂笔记");

int returnVal = jfc.showDialog(null,"保存为");

if(returnVal == JFileChooser.APPROVE_OPTION) {//选择文件后再执行下面的语句，保证了程序的健壮性

f=jfc.getSelectedFile();

flag=false;

write();

}

}

}else if(!(jta.getText().isEmpty())){

JFileChooser jfc=new JFileChooser("D:\\java课堂笔记");

int returnVal = jfc.showDialog(null,"保存为");

if(returnVal == JFileChooser.APPROVE_OPTION) {//选择文件后再执行下面的语句，保证了程序的健壮性

f=jfc.getSelectedFile();

flag=false;

write();

newNew();

}

}else{

newNew();

}

}else if("打开".equals(comm)){

JFileChooser jfc=new JFileChooser("D:\\java课堂笔记");

jfc.setDialogType(JFileChooser.OPEN_DIALOG);

int returnVal = jfc.showOpenDialog(null);

if(returnVal == JFileChooser.APPROVE_OPTION) {//选择文件后再执行下面的语句，保证了程序的健壮性

f=jfc.getSelectedFile();

frame.setTitle(f.getName());

result=read();

flag=false;

value=result;

jta.setText(result);

}

}else if("保存".equals(comm)){

JFileChooser jfc=new JFileChooser("D:\\java课堂笔记");

if(flag){

int returnVal = jfc.showDialog(null,"保存为");

if(returnVal == JFileChooser.APPROVE_OPTION) {//选择文件后再执行下面的语句，保证了程序的健壮性

f=jfc.getSelectedFile();

flag=false;

write();

}

}else{

write();

}

}else if("另存".equals(comm)){

JFileChooser jfc=new JFileChooser("D:\\java课堂笔记");

int returnVal = jfc.showDialog(null,"另存");

if(returnVal == JFileChooser.APPROVE_OPTION) {//选择文件后再执行下面的语句，保证了程序的健壮性

f=jfc.getSelectedFile();

write();

}

}else if("退出".equals(comm)){

System.exit(0);

}else if("撤销".equals(comm)){

jta.setText(value);

}else if("剪切".equals(comm)){

value=jta.getText();

jta.cut();

}else if("复制".equals(comm)){

jta.copy();

}else if("粘贴".equals(comm)){

value=jta.getText();

jta.paste();

}else if("删除".equals(comm)){

value=jta.getText();

jta.replaceSelection(null);

}else if("全选".equals(comm)){

jta.selectAll();

}else if("查找".equals(comm)){

value=jta.getText();

jf.add(jtf,BorderLayout.CENTER);

jf.add(jb,BorderLayout.SOUTH);

jf.setLocation(300,300);

jf.pack();

jf.setVisible(true);

jf.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

}else if("替换".equals(comm)){

value=jta.getText();

GridLayout gl=new GridLayout(3,3);

JLabel jl1=new JLabel("查找内容:");

JLabel jl2=new JLabel("替换为:");

jfc.setLayout(gl);

jfc.add(jl1);

jfc.add(jtf);

jfc.add(jb);

jfc.add(jl2);

jfc.add(jt);

jfc.add(jbt);

JLabel jl3=new JLabel();

JLabel jl4=new JLabel();

jfc.add(jl3);

jfc.add(jl4);

jfc.add(jba);

jfc.setLocation(300,300);

jfc.pack();

jfc.setVisible(true);

jfc.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

}else if("版本".equals(comm)){

JDialog jd=new JDialog(frame,"关于对话框");

jd.setSize(200,200);

JLabel l=new JLabel("哈哈哈哈哈哈哈哈哈哈呵呵呵呵呵呵呵呵呵呵呵呵呵");

jd.add(l,BorderLayout.CENTER);

jd.setLocation(100,200);

jd.setSize(300,300);

jd.setVisible(true);

// jd.pack();

jd.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);

}else if("开始".equals(comm)||"下一个".equals(comm)){

String temp=jtf.getText();

int s=value.indexOf(temp,start);

if(value.indexOf(temp,start)!=-1){

jta.setSelectionStart(s);

jta.setSelectionEnd(s+temp.length());

jta.setSelectedTextColor(Color.GREEN);

start=s+1;

jb.setText("下一个");

// value=value.substring(s+temp.length());//不能截取字串

}else {

JOptionPane.showMessageDialog(jf, "查找完毕!", "提示", 0, ic);

jf.dispose();

}

}else if("替换为".equals(comm)){

String temp=jtf.getText();

int s=value.indexOf(temp,start);

if(value.indexOf(temp,start)!=-1){

jta.setSelectionStart(s);

jta.setSelectionEnd(s+temp.length());

jta.setSelectedTextColor(Color.GREEN);

start=s+1;

jta.replaceSelection(jt.getText());

}else {

JOptionPane.showMessageDialog(jf, "查找完毕!", "提示", 0, ic);

jf.dispose();

}

}else if("全部替换".equals(comm)){

String temp=jta.getText();

temp=temp.replaceAll(jtf.getText(), jt.getText());

jta.setText(temp);

}

}

public String read(){

String temp="";

try {

FileInputStream fis = new FileInputStream(f.getAbsolutePath());

byte[] b=new byte[1024];

while(true){

int num=fis.read(b);

if(num==-1)break;

temp=temp+new String(b,0,num);

}

fis.close();

} catch (Exception e1) {

e1.printStackTrace();

}

return temp;

}

public void write(){

try {

FileOutputStream fos=new FileOutputStream(f);

fos.write(jta.getText().getBytes());

fos.close();

} catch (Exception e) {

e.printStackTrace();

}

}

public void newNew(){

frame.dispose();

new MyNotepad();

flag=true;

}

public MyNotepad(){

JMenuBar jmb=new JMenuBar();

String[] menuLab={"文件","编辑","帮助"};

String[][] menuItemLab={{"新建","打开","保存","另存","退出"},

{"撤销","剪切","复制","粘贴","删除","全选","查找","替换"},

{"版本"}};

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

JMenu menu=new JMenu(menuLab[i]);

jmb.add(menu);

for(int j=0;jmenuItemLab[i].length;j++){

JMenuItem jmi=new JMenuItem(menuItemLab[i][j]);

menu.add(jmi);

jmi.addActionListener(this);

}

}

frame.setJMenuBar(jmb);

jta.setLineWrap(true);//自动换行

JScrollPane jsp=new JScrollPane(jta);//滚动窗口面板

frame.add(jsp);

jb.addActionListener(this);

jbt.addActionListener(this);

jba.addActionListener(this);

frame.setLocation(200,50);

frame.setSize(620,660);

frame.setVisible(true);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

public static void main(String[] args) {

new MyNotepad();

}

}

java记事本代码注释

import java.awt.*;

import java.awt.event.*;

import java.io.*;

public class tt

extends Frame

implements ActionListener {

static tt frm = new tt();

//创建一个菜单栏

static MenuBar menubar = new MenuBar();

//创建一个下拉式菜单组件——"文件"

static Menu menu1 = new Menu("文件");

//创建一个下拉式菜单组件——"关于"

static Menu menu2 = new Menu("关于");

//创建一个菜单的所有项——"打开"

static MenuItem item1 = new MenuItem("打开");

//创建一个菜单的所有项——"保存"

static MenuItem item2 = new MenuItem("保存");

//创建一个菜单的所有项——"关于我们"

static MenuItem item3 = new MenuItem("关于我们");

//FileDialog 类显示一个对话框窗口，用户可以从中选择文件。

static FileDialog dia1 = new FileDialog(frm, "打开");

//FileDialog.SAVE此常量值指示文件对话框窗口的作用是查找要写入的文件。

static FileDialog dia2 = new FileDialog(frm, "保存", FileDialog.SAVE);

//创建一个文本区

static TextArea txa = new TextArea();

//创建一个窗口事件对象

static WinLis wlis = new WinLis();

public static void main(String agrs[]) {

//创建一个边框布局

BorderLayout br = new BorderLayout();

//设置Frame的title

frm.setTitle("小记事本");

/*将下拉式菜单menu1、menu2添加到菜单栏中*/

menubar.add(menu1);

menubar.add(menu2);

/*将菜单item1、item2添加到下拉式菜单menu1中，将菜单item3添加到下拉式菜单menu2中*/

menu1.add(item1);

menu1.add(item2);

menu2.add(item3);

/*为item1、item2、item3添加指定的动作侦听器，以从此菜单项接收动作事件*/

item1.addActionListener(frm);

item2.addActionListener(frm);

item3.addActionListener(frm);

//将文本去txa添加到Frame中

frm.add(txa);

//将此窗体的菜单栏设置为指定的menubar菜单栏。

frm.setMenuBar(menubar);

//调整Frame组件的大小宽800高650

frm.setSize(800, 650);

//显示组件

frm.setVisible(true);

/*为组件添加窗口事件*/

frm.addWindowListener(wlis);

frm.addWindowListener(wlis);

}

/*窗口事件的实现，在关闭窗口的同时关闭运行程序*/

static class WinLis

extends WindowAdapter {

public void windowClosing(WindowEvent e) {

frm.dispose();

}

}

public void actionPerformed(ActionEvent e) {

//获取当前点击的菜单对象，getSource()返回最初发生 Event 的对象。

MenuItem item = (MenuItem) e.getSource();

if (item == item1) {

dia1.setVisible(true);

/*getDirectory()获取dia1对话框的目录，getFile()获取dia1对话框的选定文件*/

String fname = dia1.getDirectory() + dia1.getFile();

try {

//创建一个文件输入字节流

FileInputStream fi = new FileInputStream(fname);

/*fi.available()返回下一次对此输入流调用的方法可以不受阻塞地从此输入流读取（或跳过）的估计剩余字节数*/

byte ba[] = new byte[fi.available()];

//从此输入流中将最多ba.length个字节的数据读入到一个byte数组中

fi.read(ba);

//将值赋到文本区中(new String(ba)将字符转换成字符串).

txa.setText(new String(ba));

//关闭输入流

fi.close();

}

catch (IOException ioe) {}

;

}

if (item == item2) {

dia2.setVisible(true);

//getDirectory()获取dia2对话框的目录

String fname2 = dia2.getDirectory();

//dia2.getFile()获得dia2对话框中的选定文件，并为其拼接上后缀.txt

File file = new File(dia2.getFile() + ".txt");

//获得文本区中的内容

String s = txa.getText();

try {

//创建一个文本写入字符输出流，FIleWriter用来写入字符文件的便捷类

BufferedWriter out = new BufferedWriter(new FileWriter(fname2 + file));

//写入

out.write(s);

//关闭流

out.close();

}

catch (Exception ioe) {

ioe.printStackTrace();

}

}

}

}

关于选项帮你添上了（事件监听也加上了），具体要实现什么功能，自己看着加吧！

用JAVA编个简单的记事本程序

import java.awt.event.*;

import java.awt.*;

import java.io.*;

import java.util.Calendar;

import java.util.Date;

import javax.swing.*;

class Editor extends Frame implements ActionListener,ItemListener

{

// Date date=new Date();

int n1;String str="";int k=0;String st1,st2;

JTextArea ta=new JTextArea(50,50);

Dialog dialog,dialog1;

Choice ce1,ce2,ce3;

Button btn1,btn2,btn3;Panel p1=new Panel();

Panel p2=new Panel();Panel p3=new Panel();Panel p4=new Panel();

public Editor (String s)

{

super ("记事本编辑板");

ImageIcon YouImg = new ImageIcon("iconimage.jpg");

setIconImage(YouImg.getImage());

addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

dispose();

System.exit(0);

}

});

setBounds(50,35,700,500);

MenuBar mb=new MenuBar();

setMenuBar(mb);

Menu file=new Menu("文件(F)");Menu edit=new Menu("编辑(E)");Menu help=new Menu("帮助(H)");

Menu pattern=new Menu("格式(P)");Menu time=new Menu("时间(T)");

MenuItem exit=new MenuItem("退出",new MenuShortcut(KeyEvent.VK_Q));

MenuItem tdate=new MenuItem("日期/时间",new MenuShortcut(KeyEvent.VK_D));

MenuItem renew=new MenuItem("新建", new MenuShortcut(KeyEvent.VK_N));

MenuItem save=new MenuItem("保存", new MenuShortcut(KeyEvent.VK_S));

MenuItem open=new MenuItem("打开",new MenuShortcut(KeyEvent.VK_O));

MenuItem copy=new MenuItem("复制",new MenuShortcut(KeyEvent.VK_C));

MenuItem paste=new MenuItem("粘贴",new MenuShortcut(KeyEvent.VK_V));

MenuItem cut=new MenuItem("剪切",new MenuShortcut(KeyEvent.VK_X));

MenuItem helptopic=new MenuItem("主题",new MenuShortcut(KeyEvent.VK_T));

helptopic.addActionListener(this);

dialog=new Dialog(this, "字体设置");dialog.setSize(300,300);

dialog1=new Dialog(this, "帮助主题");dialog1.setBounds(250,100,300,400);

dialog.addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

dialog.setVisible(false);}

});

dialog1.addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

dialog1.setVisible(false);}

});

//dialog.setBackground(Color.WHITE);

dialog.setLayout(null);dialog.setBounds(170,150,450,300);

Label L1=new Label("字体(F)");Label L2=new Label("字形(Y)");

Label L3=new Label("大小(S)");TextArea ta1=new TextArea(5,5);

ta1=new TextArea("至于记事本的主题嘛，因为本人的水平有限, 所有不能为大家作过多的指导，望大家见谅！"); //在这里我想加一个文本框用来放帮助信息。

ce1=new Choice();ce2=new Choice();

ce3=new Choice();

btn1=new Button("确定");btn2=new Button("取消");btn1.addActionListener(this);btn2.addActionListener(this);

btn3=new Button("颜色");

btn3.addActionListener(this);

ce1.add("华文行楷");ce1.add("华文中宋");ce1.add("华文新魏");ce1.add("华文细黑");ce1.add("宋体");ce1.add("方正姚体");

ce1.add("幼圆");ce1.add("隶书");ce1.add("楷体-GB2312");ce1.add("华文行楷");ce1.add("华文彩云");ce1.add("仿宋-GB2312");

ce2.add("粗体");ce2.add("斜体");ce2.add("常规");

for(int n1=0;n1=100;n1++)

{ce3.add(""+n1);}

dialog.add(p1);p1.setBounds(5,30,440,35);p1.setLayout( null);//p1.setBackground(Color.red);

dialog.add(p2);p2.setBounds(5,65,440,27);dialog.add(p3);p3.setBounds(5,90,440,40);//p4.setBounds(5,120,440,138);

p1.setLayout( null);

p1.add(L1);L1.setBounds(5,15,50,25);p1.add(L2);L2.setBounds(150,15,50,25);

p1.add(L3);L3.setBounds(250,15,50,25);p2.setLayout( null);//p2.setBackground(Color.yellow);

p2.add(ce1);ce1.setBounds(5,0,130,25);p2.add(ce2);ce2.setBounds(160,0,90,25);p2.add(ce3);ce3.setBounds(260,0,75,25);

p2.add(btn1);btn1.setBounds(360,0,75,25);

p3.setLayout( null);p3.add(btn2);btn2.setBounds(360,10,75,25);p3.add(btn3);btn3.setBounds(160,10,75,25);

dialog.add(p4);p4.setBackground(Color.yellow);p4.setBounds(5,120,440,138);

dialog1.add(ta1);

//设置字体的下拉情况

MenuItem Font=new MenuItem("字体");//给字体加监听器

Font.addActionListener(this);

MenuItem Replace=new MenuItem("替换"); MenuItem Seek=new MenuItem("查找");

//首要添加组件的情况

mb.add(file);mb.add(edit);mb.add(pattern);mb.add(time);mb.add(help);

file.add(renew);file.addSeparator();file.add(open);time.add(tdate);

file.addSeparator(); file.add(exit);file.addSeparator();file.add(save);

edit.add(copy); edit.addSeparator();edit.add(paste);edit.addSeparator();edit.add(cut);

pattern.add(Font); pattern.add(Replace);

pattern.add(Seek);help.add(helptopic);

//给必要的组件加上监听器

renew.addActionListener( this);tdate.addActionListener(this);

open.addActionListener(this); save.addActionListener(this);exit.addActionListener(this);

cut.addActionListener(this);copy.addActionListener(this);paste.addActionListener(this);

ce1.addItemListener(this);ce2.addItemListener(this);ce3.addItemListener(this);

//添加必要的组件

add(ta,"Center");ta.setBackground(new Color(249,255,234));

setSize(700,500);

setVisible(true);

this.validate() ;

}

public void itemStateChanged(ItemEvent e) {

if (ce2.getSelectedItem().equals("粗体"))

{ k=1;st1=ce1.getSelectedItem();st2=ce3.getSelectedItem();}

if (ce2.getSelectedItem().equals("斜体"))

{ k=2;st1=ce1.getSelectedItem();st2=ce3.getSelectedItem();}

if (ce2.getSelectedItem().equals("常规"))

{ k=3;st1=ce1.getSelectedItem();st2=ce3.getSelectedItem();}

}

public void actionPerformed(ActionEvent e)

{

if(e.getActionCommand().equals("新建"))

{System.out.println("new ");

ta.setText("");}

if(e.getActionCommand().equals("退出"))

{ System.exit(0);}

try

{

if(e.getActionCommand().equals("打开"))

openText();

if(e.getActionCommand().equals("保存"))

saveText();

}catch(IOException e1){}

if(e.getActionCommand().equals("复制"))

{ str=ta.getSelectedText();}

if(e.getActionCommand().equals("粘贴"))

{ ta.insert(str,ta.getCaretPosition());}

if(e.getActionCommand().equals("剪切"))

{str=ta.getSelectedText();ta.replaceRange("",ta.getSelectionStart(),ta.getSelectionEnd());

}

if(e.getActionCommand().equals("字体"))

{dialog.setVisible(true);}

if(e.getActionCommand().equals("主题"))

{dialog1.setVisible(true);}

if(e.getActionCommand().equals("颜色"))

{

Color clr=JColorChooser.showDialog(this,"颜色对话框",null);

ta.setForeground(clr);

}

if(e.getSource()==btn2)

dialog.setVisible(false);

if(e.getSource()==btn1)

{

if(k==1)

{ ta.setFont(new Font(st1,Font.BOLD,Integer.parseInt(st2)));}

if(k==2)

{ ta.setFont(new Font(st1,Font.ITALIC,Integer.parseInt(st2)));}

if(k==3)

{ ta.setFont(new Font(st1,Font.PLAIN,Integer.parseInt(st2)));}

dialog.setVisible(false);

}

//if (e.getActionCommand().equals("日期/时间"))

//ta.setText(ta.getText()+""+date);

if(e.getActionCommand().equals("日期/时间"))

{

Calendar c1 =Calendar.getInstance();

int y = c1.get(Calendar.YEAR);

int m = c1.get(Calendar.MONTH);

int d = c1.get(Calendar.DATE);

int h = c1.get(Calendar.HOUR);

int m1 = c1.get(Calendar.MINUTE);

int m2 = m+1;

ta.setText(ta.getText()+""+(y+"年"+m2+"月"+d+"日"+h+":"+m1));

}

}

public void openText() throws IOException

{

FileDialog fd=new FileDialog(this,"打开文件对话框",FileDialog.LOAD);

fd.setVisible(true);FileInputStream fis=new FileInputStream(fd.getDirectory()+fd.getFile());

ta.setText("");

int n=0;

while((n=fis.read())!=-1)

ta.append(""+(char)n);

fis.close();

}

public void saveText() throws IOException

{

FileDialog fd=new FileDialog(this,"打开文件对话框",FileDialog.SAVE);

fd.setVisible(true);

FileOutputStream out=new FileOutputStream(fd.getDirectory()+fd.getFile()+".txt");

String str=ta.getText();

String str1=ta.getText();

for(int n=0;nstr.length();n++)

out.write((byte)str.charAt(n));

out.close();

}

public static void main(String[] args)

{

Editor f=new Editor(" 记事本程序");

//添加时间代码

Date date=new Date();

System.out.print(date);

/*Calendar now=Calendar.getInstance();

int year=now.get(Calendar.YEAR);

int month=now.get(Calendar.MONTH)+1;

int day=now.get(Calendar.DATE);

System.out.print(year+"年"+month+"月"+day+"日");

int week=now.get(Calendar.DAY_OF_WEEK);

String str="日一二三四五六";//星期1-7

int i=2*(week-1);

System.out.println("星期"+str.substring(i,i+2));//对应中文的下标*/

}

class dialog extends Dialog

{

public dialog()

{

super(dialog, "字体设置");

class Mycanvas extends Canvas

{

Toolkit tk;

Image img;

Mycanvas()

{

setSize(440,138);

tk=getToolkit();

img=tk.getImage("photo.jpg");

}

public void paint(Graphics g)

{

g.drawImage(img,5,120,440,138,this);

}

}

}

}

}