jsb.java~4~

和微软记事本一样的java小程序

import java.awt.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
import java.lang.*;
import java.text.*;
import java.io.*;
import java.util.*;
import javax.accessibility.*;
import java.awt.datatransfer.*;



//  记事本


public class jsb extends JFrame implements ActionListener,MouseListener
{
JPanel contentPane;

JMenuBar jMenuBar1 = new JMenuBar();



//文件菜单
JMenu jMenuFile = new JMenu();
JMenuItem jMenuFileNew = new JMenuItem();
JMenuItem jMenuFileOpen = new JMenuItem();
JMenuItem jMenuFileSave = new JMenuItem();
JMenuItem jMenuFileSaveTo = new JMenuItem();
JMenuItem jMenuFileExit = new JMenuItem();

//帮助菜单
JMenu jMenuHelp = new JMenu();
JMenuItem jMenuHelpAbout = new JMenuItem();
BorderLayout borderLayout1 = new BorderLayout();

//编辑菜单
JMenu jMenuFileEdit = new JMenu();
JMenuItem jMenuFileCut = new JMenuItem();
JMenuItem jMenuFileCopy = new JMenuItem();
JMenuItem jMenuFilePaste = new JMenuItem();
JMenuItem jMenuFileDel = new JMenuItem();

//右键菜单
JMenuItem jMenuMouseCut = new JMenuItem("剪切");
JMenuItem jMenuMouseCopy = new JMenuItem("复制");
JMenuItem jMenuMousePaste = new JMenuItem("粘贴");
JMenuItem jMenuMouseDel = new JMenuItem("删除");

//格式菜单
JMenu jMenuFileForm = new JMenu();
JMenuItem jMenuFileFindNext = new JMenuItem();
JMenuItem jMenuFileSelect=new JMenuItem("全选");
JMenuItem jMenuFileTime = new JMenuItem("时间/日期(D)");
JMenuItem jMenuFileFont = new JMenuItem();
JMenuItem jcolor=new JMenuItem("颜色...");
JCheckBox jMenuCheckBox = new JCheckBox("自动换行",false);

JTextArea jTextArea1 = new JTextArea(15,15);
JLabel statubar=new JLabel("状态栏");
JPopupMenu pm=new JPopupMenu();

Calendar cal=Calendar.getInstance();

// 变量声明
String filename;
String filepath;
String strtext="";
boolean bsaved = false;
JFileChooser jFileChooser = new JFileChooser();
JColorChooser jColor=new JColorChooser();
FileDialog filedialog_save;
BufferedWriter out;
FileWriter tofile;
Clipboard cb=Toolkit.getDefaultToolkit().getSystemClipboard();
int n;
int i;
int t;
boolean check=true;
FileDialog dog;



//组件初始化

public jsb(){
contentPane = (JPanel) this.getContentPane();
contentPane.setLayout(borderLayout1);
this.setBounds(110,100,500, 450);
this.setFont(new Font("宋体", Font.PLAIN, 8));
this.setTitle("编辑文字");

jTextArea1.setDoubleBuffered(false);
jTextArea1.setToolTipText("编辑文字");
jTextArea1.setVerifyInputWhenFocusTarget(true);
jTextArea1.setText("");

contentPane.add(statubar,borderLayout1.SOUTH);



jMenuFile.setText("文件");
jMenuFileExit.setText("退出");


jMenuHelp.setText("帮助");
jMenuHelpAbout.setText("关于");

jMenuFileNew.setText("新建(N)");
jMenuFileNew.setMnemonic(KeyEvent.VK_N);
KeyStroke keynew=KeyStroke.getKeyStroke(KeyEvent.VK_N,Event.CTRL_MASK);
jMenuFileNew.setAccelerator(keynew);

jMenuFileOpen.setText("打开(O)...");
jMenuFileOpen.setMnemonic(KeyEvent.VK_O);
KeyStroke keyopen=KeyStroke.getKeyStroke(KeyEvent.VK_O,Event.CTRL_MASK);
jMenuFileOpen.setAccelerator(keyopen);

jMenuFileSave.setText("保存(S)");
jMenuFileSave.setMnemonic(KeyEvent.VK_S);
KeyStroke keysave=KeyStroke.getKeyStroke(KeyEvent.VK_S,Event.CTRL_MASK);
jMenuFileSave.setAccelerator(keysave);


jMenuFileSaveTo.setText("另存为(A)");


jMenuFileEdit.setText("编辑");
jMenuFileCut.setText("剪切(T)");
jMenuFileCut.setMnemonic(KeyEvent.VK_X);
KeyStroke keycut=KeyStroke.getKeyStroke(KeyEvent.VK_O,Event.CTRL_MASK);
jMenuFileCut.setAccelerator(keycut);


jMenuFileCopy.setText("复制(C)");
jMenuFileCopy.setMnemonic(KeyEvent.VK_C);
KeyStroke keycopy=KeyStroke.getKeyStroke(KeyEvent.VK_C,Event.CTRL_MASK);
jMenuFileCopy.setAccelerator(keycopy);


jMenuFilePaste.setText("粘贴(P)");
jMenuFilePaste.setMnemonic(KeyEvent.VK_V);
KeyStroke keypaste=KeyStroke.getKeyStroke(KeyEvent.VK_V,Event.CTRL_MASK);
jMenuFilePaste.setAccelerator(keypaste);


jMenuFileDel.setText("删除(L)");

jMenuFileFindNext.setText("查找");
jMenuFileFindNext.setMnemonic(KeyEvent.VK_F);
KeyStroke keyfind=KeyStroke.getKeyStroke(KeyEvent.VK_F,Event.CTRL_MASK);
jMenuFileFindNext.setAccelerator(keyfind);

jMenuFileForm.setText("格式");



jMenuBar1.add(jMenuFile);
jMenuBar1.add(jMenuFileEdit);
jMenuBar1.add(jMenuFileForm);
jMenuBar1.add(jMenuHelp);


jMenuFile.add(jMenuFileNew);
jMenuFile.add(jMenuFileOpen);
jMenuFile.add(jMenuFileSave);
jMenuFile.add(jMenuFileSaveTo);

jMenuFile.addSeparator();

jMenuFile.add(jMenuFileExit);


jMenuFileEdit.add(jMenuFileCut);
jMenuFileEdit.add(jMenuFileCopy);
jMenuFileEdit.add(jMenuFilePaste);
jMenuFileEdit.add(jMenuFileDel);



jMenuFileEdit.addSeparator();



jMenuFileEdit.add(jMenuFileFindNext);
jMenuFileEdit.add(jMenuFileSelect);
jMenuFileEdit.add(jMenuFileTime);



jMenuFileForm.add(jcolor);
jMenuFileForm.add(jMenuCheckBox);

jMenuHelp.add(jMenuHelpAbout);


contentPane.add(jTextArea1, BorderLayout.CENTER);
//鼠标菜单
jTextArea1.add(pm);
pm.add(jMenuMouseCut);
pm.add(jMenuMouseCopy);
pm.add(jMenuMousePaste);
pm.add(jMenuMouseDel);

//滚动条控件
JScrollPane scroller = new JScrollPane();
JViewport port = scroller.getViewport();
contentPane.add("Center", scroller);
port.add(jTextArea1);

this.setJMenuBar(jMenuBar1);


setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);


//添加菜单中的监听器
jTextArea1.addMouseListener(this);

File_new_actionAdapter fnew=new File_new_actionAdapter();
jMenuFileNew.addActionListener(fnew);


File_open_actionAdapter fopen=new File_open_actionAdapter();
jMenuFileOpen.addActionListener(fopen);


File_save_actionAdapter fsave=new File_save_actionAdapter();
jMenuFileSave.addActionListener(fsave);


File_saveto_actionAdapter fsaveto=new File_saveto_actionAdapter();
jMenuFileSaveTo.addActionListener(fsaveto);

File_close_actionAdapter fclose=new File_close_actionAdapter();
jMenuFileExit.addActionListener(fclose);

jMenuFileCut.addActionListener(this);
jMenuFileCopy.addActionListener(this);
jMenuFilePaste.addActionListener(this);
jMenuFileDel.addActionListener(this);
//鼠标事件
jMenuMouseCut.addActionListener(this);
jMenuMouseCopy.addActionListener(this);
jMenuMousePaste.addActionListener(this);
jMenuMouseDel.addActionListener(this);

jMenuFileFindNext.addActionListener(this);
jMenuFileSelect.addActionListener(this);
jMenuFileTime.addActionListener(this);

jMenuFileFont.addActionListener(this);
jMenuCheckBox.addActionListener(this);
jcolor.addActionListener(this);
jMenuHelpAbout.addActionListener(this);

show();
validate();
}


//调用的函数
public void File_new_actionPerformed(ActionEvent e){
FileNew();
}

public void File_open_actionPerformed(ActionEvent e){
FileOpen();
}

public void File_save_actionPerformed(ActionEvent e){
FileSave();
}

public void File_saveto_actionPerformed(ActionEvent e){
FileSaveTo();
}

public void File_close_actionPerformed(ActionEvent e){
FileClose();
}

public void mouseReleased(MouseEvent e){
if(e.isPopupTrigger())
pm.show(this,e.getX(),e.getY());
}

public void mouseClicked(MouseEvent e){}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mousePressed(MouseEvent e){}


boolean toExit()
{
if(bsaved)
return true;

int i=JOptionPane.showConfirmDialog(this,"是否保存文件","Jishiben",JOptionPane.YES_NO_CANCEL_OPTION);
switch(i)
{
case JOptionPane.YES_OPTION:
return true;
case JOptionPane.NO_OPTION:
return false;
case JOptionPane.CANCEL_OPTION:
return false;
default:
return false;
}
}


//调用文件新建

void FileNew()
{
if(bsaved){
this.jTextArea1.setText("");
this.jTextArea1.setFocusable(true);
this.setTitle("未命名");
this.statubar.setText("新建文本");
}
else FileSaveTo();
}

//调用文件打开

void FileOpen()
{
String strFileOpen="";
{
try{
if(this.jFileChooser.APPROVE_OPTION==this.jFileChooser.showOpenDialog(this)){
strFileOpen=this.jFileChooser.getSelectedFile().getPath();
File file=new File(strFileOpen);
int flength=(int)file.length();
int num=0;
FileReader fReader=new FileReader(file);
char[] data=new char[flength];
while(fReader.ready()){
num+=fReader.read(data,num,flength-num);
}
fReader.close();
jTextArea1.setText(new String(data,0,num));
filename=strFileOpen;
this.setTitle(filename);
statubar.setText("打开:"+filename);
updateFname();
bsaved=false;
}
else
return ;
}catch(Exception e){
statubar.setText("Error Open:"+e.getMessage());
}
}
FileSave();

}

//调用保存对话框

boolean FileSave()
{
if(filename==null){
return FileSaveTo();
}
if(!bsaved){
if(filename.length()!=0){
try{
File saveFile=new File(filename);

FileWriter fw=new FileWriter(saveFile);
fw.write(jTextArea1.getText());
fw.close();
statubar.setText("保存文件:"+filename);
bsaved=true;
updateFname();
}catch(Exception e)
{
statubar.setText("保存出错: "+e.getMessage());
}
}
else{
return FileSaveTo();
}
}
return true;

}

//调用另存对话框

boolean FileSaveTo()
{
if(jFileChooser.APPROVE_OPTION==jFileChooser.showSaveDialog(this)){
filename=jFileChooser.getSelectedFile().getPath();

return FileSave();
}
else{
return false;
}
}

//更改标题

void updateFname(){
String str;
if(filename==null){
str="无标题";
}
else{
str=filename;
}
if(!bsaved){
str="记事本"+str;
}
this.setTitle(str);
this.repaint();
}

//文件关闭

void FileClose(){
if(!bsaved){
if(toExit()){
FileSave();
}
else {
System.exit(0);
}
}
else{
System.exit(0);
}
}

//调用编辑剪切

void FileCut (ActionEvent e)
{

try{
String str=this.jTextArea1.getSelectedText();
if(str.length()!=0){
StringSelection s = new StringSelection(str);
cb.setContents(s,s);
this.jTextArea1.replaceRange("",this.jTextArea1.getSelectionStart(),this.jTextArea1.getSelectionEnd());
bsaved =false;
}
}catch(Exception ex){
this.statubar.setText("剪切出错:"+ex.getMessage());
}

}

//调用编辑复制

void FileCopy(ActionEvent e)
{

try{
String str=this.jTextArea1.getSelectedText();
if(str.length()!=0){
StringSelection s = new StringSelection(str);
cb.setContents(s,s);
}
}catch(Exception ex)
{
this.statubar.setText("复制出错!"+ex.getMessage());
}

}

//调用编辑粘贴

void FilePaste(ActionEvent e)
{
try
{
Transferable tr =cb.getContents(this);
if (tr != null)
{
String s = (String)tr.getTransferData(DataFlavor.stringFlavor);
if(s!=null)
jTextArea1.replaceRange(s,jTextArea1.getSelectionStart(),jTextArea1.getSelectionEnd());
bsaved =false;
}
}
catch (Exception err)
{
err.printStackTrace();
}
}

//调用编辑删除

void FileDel(ActionEvent e)
{
jTextArea1.replaceRange("",jTextArea1.getSelectionStart(),jTextArea1.getSelectionEnd());
bsaved =false;
}

//调用编辑查找

void FileFindNext(ActionEvent e)
{