java写的记事本代码_java怎么用记事本写代码

求：用java写的记事本的代码...

color.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JColorChooser jColor = new JColorChooser(); // 调用颜色面板,设置前景就可更改字体颜色

Color fcolor = ja.getForeground(); //得到前景色

ja.setForeground(jColor.showDialog(ja, "选择字体颜色", fcolor)); //设置前景色

}

});

cancel.addActionListener(new ActionListener() { //为取消按钮添加临听器

fontMain.setVisible(false); //当事件触发,把fontMain设为隐藏

ok.addActionListener(new ActionListener() { //为确定按钮添加临听器

fontMain.setVisible(false); //当事件触发,把fontMain设为隐藏

font.addActionListener(new ActionListener() { //为font按钮添加临听器

fontJd.setLocationRelativeTo(NewProgram.this); //设定fontJd的位置

fontJd.setVisible(true); //使fontJd为可见

int style = 0;

if (fontShape.getSelectedItem().equals("常规") == true) { //以下为设置字体的代码

style = Font.PLAIN; // 将style设置为常规字形保存

if (fontShape.getSelectedItem().equals("斜体") == true) {

style = Font.ITALIC;

if (fontShape.getSelectedItem().equals("粗体") == true) {

style = Font.BOLD;

if (fontShape.getSelectedItem().equals("粗斜体") == true) {

style = Font.BOLD ◆ Font.ITALIC;

// 设置字体大小的 //字号

"10" };

for (int i = 0; i size.length; i◆◆) {

if (sizeList.getSelectedItem().equals(size[i]) == true) { //设置字体字号

ja.setFont(new Font(String.valueOf(fontList

.getSelectedItem()), style, (10 - i) * 10));

fontJd.dispose();

}}};

请参考

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();

for(int i=0;ishowDay.length;i◆◆){

showDay[i]=new JTextField();

showDay[i].setBackground(backColor);

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);

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

add(splitH,BorderLayout.CENTER);

showYear.setHorizontalAlignment(JTextField.CENTER);

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

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);

doMark();

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

year--;

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

month◆◆;

showMonth.setText(" "◆month);

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

month--;

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);

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

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

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

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

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){

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){

com.setBackground(backColor);

public void doMark(){

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();

for(int k=0;kdayFile.length;k◆◆){

if(dayFile[k].equals(key◆".txt")){

break;

} }

return boo;

public static void main(String args[]){

new CalendarWindow();

//CalendarPad类：

public class CalendarPad extends JPanel{

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();

center=new JPanel();

add(center,BorderLayout.CENTER);

title[j]=new JLabel();

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);

public void setShowDayTextField(JTextField [] text){

showDay=text;

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();

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

validate();

用Java编写简易记事本源代码

JAVA记事本 程序代码~

刚才我这登的两号 回答问题出现了碰撞,上面那阿辉的代码接这里！！！import java.awt.BorderLayout;

import java.awt.Container;

import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.InputEvent;

import java.awt.event.KeyAdapter;

import java.awt.event.KeyEvent;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;import javax.swing.BorderFactory;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

import javax.swing.JOptionPane;

import javax.swing.JPopupMenu;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.KeyStroke;

import javax.swing.ScrollPaneConstants;

import javax.swing.SwingConstants;public class JNotePadUI extends JFrame {

private JMenuItem menuOpen;

private JMenuItem menuSave;

private JMenuItem menuSaveAs;

private JMenuItem menuClose; private JMenu editMenu;

private JMenuItem menuCut;

private JMenuItem menuCopy;

private JMenuItem menuPaste; private JMenuItem menuAbout;

private JTextArea textArea;

private JLabel stateBar;

private JFileChooser fileChooser;

private JPopupMenu popUpMenu; public JNotePadUI() {

super("新建文本文件");

setUpUIComponent();

setUpEventListener();

setVisible(true);

private void setUpUIComponent() {

// 菜单栏

JMenuBar menuBar = new JMenuBar();

// 设置「文件」菜单

JMenu fileMenu = new JMenu("文件");

menuOpen = new JMenuItem("打开");

// 快捷键设置

menuOpen.setAccelerator(

KeyStroke.getKeyStroke(

KeyEvent.VK_O,

InputEvent.CTRL_MASK));

menuSave = new JMenuItem("保存");

menuSave.setAccelerator(

KeyEvent.VK_S,

menuSaveAs = new JMenuItem("另存为"); menuClose = new JMenuItem("关闭");

menuClose.setAccelerator(

KeyEvent.VK_Q,

fileMenu.add(menuOpen);

fileMenu.addSeparator(); // 分隔线

fileMenu.add(menuSave);

fileMenu.add(menuSaveAs);

fileMenu.add(menuClose);

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