/*
* 记事本程序
* 编写时间：2010.3.12
*/
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GraphicsEnvironment;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import java.io.*;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JPanel;
import javax.swing.KeyStroke;
public class TextFrame extends JFrame{
private JFrame frame;
private JTextArea jta;
private JScrollPane jsp;
private JMenu wj;
private JMenu bj;
private JMenu gs;
private JMenu ck;
private JMenu bz;
private JMenuBar jmb;
private JMenuItem xj;
private JMenuItem dk;
private JMenuItem bc;
private JMenuItem lcw;
private JMenuItem ymsz;
private JMenuItem dy;
private JMenuItem tc;
private JMenuItem cx;
private JMenuItem jq;
private JMenuItem fz;
private JMenuItem zt;
private JMenuItem sc;
private JMenuItem cz;
private JMenuItem czxyg;
private JMenuItem th;
private JMenuItem zd;
private JMenuItem qx;
private JMenuItem sj;
private JMenuItem zdhh;
private JMenuItem zti;
private JMenuItem ztl;
private JMenuItem bzzt;
private JMenuItem gy;
private String lj = "";
public TextFrame(){
frame = new JFrame("Java记事本");
frame.setLocation(100, 100);
Container c = frame.getContentPane();
jta = new JTextArea(30,60);
jsp = new JScrollPane(jta);
wj = new JMenu("文件(F)");//工具栏
bj = new JMenu("编辑(E)");
gs = new JMenu("格式(O)");
ck = new JMenu("查看(V)");
bz = new JMenu("帮助(H)");
wj.setMnemonic('F');//为工具栏设置快捷键(Alt+' ')
gs.setMnemonic('O');//为工具栏设置快捷键(Alt+' ')
ck.setMnemonic('V');//为工具栏设置快捷键(Alt+' ')
bj.setMnemonic('E');//为工具栏设置快捷键(Alt+' ')
bz.setMnemonic('H');//为工具栏设置快捷键(Alt+' ')
jmb = new JMenuBar();
xj = new JMenuItem("新建(N)");
dk = new JMenuItem("打开(O)…");
bc = new JMenuItem("保存(S)");
lcw = new JMenuItem("另存为(A)…");
ymsz = new JMenuItem("页面设置(U)…");
dy = new JMenuItem("打印(P)…");
tc = new JMenuItem("退出(X)");
xj.setMnemonic('N');//设置快捷键(' ')
xj.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_N,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
dk.setMnemonic('O');//设置快捷键(' ')
dk.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_O,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
bc.setMnemonic('S');//设置快捷键(' ')
bc.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_S,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
lcw.setMnemonic('A');//设置快捷键(' ')
ymsz.setMnemonic('U');//设置快捷键(' ')
dy.setMnemonic('P');//设置快捷键(' ')
dy.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_P,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
tc.setMnemonic('X');//设置快捷键(' ')
wj.add(xj);
wj.add(dk);
wj.add(bc);
wj.add(lcw);
wj.add(ymsz);
wj.add(dy);
wj.add(tc);
cx = new JMenuItem("撤消(U)");
jq = new JMenuItem("剪切(T)");
fz = new JMenuItem("复制(C)");
zt = new JMenuItem("粘贴(P)");
sc = new JMenuItem("删除(L)");
cz = new JMenuItem("查找(F)");
czxyg = new JMenuItem("查找下一个(N)");
th = new JMenuItem("替换(R)");
zd = new JMenuItem("转到(G)");
qx = new JMenuItem("全选(A)");
sj = new JMenuItem("时间/日期(D)");
cx.setMnemonic('U');//设置快捷键(' ')
cx.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_Z,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
jq.setMnemonic('T');//设置快捷键(' ')
jq.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_X,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
fz.setMnemonic('C');//设置快捷键(' ')
fz.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_C,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
zt.setMnemonic('P');//设置快捷键(' ')
zt.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_V,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
sc.setMnemonic('L');//设置快捷键(' ')
sc.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_DELETE,0));//设置快捷键(DELETE)
cz.setMnemonic('F');//设置快捷键(' ')
cz.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_F,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
czxyg.setMnemonic('N');//设置快捷键(' ')
czxyg.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3,0));//设置快捷键(F3)
th.setMnemonic('R');//设置快捷键(' ')
th.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_H,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
zd.setMnemonic('G');//设置快捷键(' ')
zd.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_G,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
qx.setMnemonic('A');//设置快捷键(' ')
qx.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_A,InputEvent.CTRL_MASK));//设置快捷键(ctl+" ")
sj.setMnemonic('D');//设置快捷键(' ')
sj.setAccelerator(
KeyStroke.getKeyStroke(
KeyEvent.VK_F5,0));//设置快捷键(F5)
bj.add(cx);
bj.add(jq);
bj.add(fz);
bj.add(zt);
bj.add(sc);
bj.add(cz);
bj.add(czxyg);
bj.add(th);
bj.add(zd);
bj.add(qx);
bj.add(sj);
zdhh = new JMenuItem("自动换行(W)");//设置快捷键(' ')
zti = new JMenuItem("字体(F)");//设置快捷键(' ')
zdhh.setMnemonic('W');//设置快捷键(' ')
zti.setMnemonic('F');//设置快捷键(' ')
gs.add(zdhh);
gs.add(zti);
ztl = new JMenuItem("状态栏(S)");//设置快捷键(' ')
ztl.setMnemonic('S');//设置快捷键(' ')
ck.add(ztl);
bzzt = new JMenuItem("帮助主题(H)");
gy = new JMenuItem("关于记事本(A)");
bzzt.setMnemonic('H');//设置快捷键(' ')
gy.setMnemonic('A');//设置快捷键(' ')
bz.add(bzzt);
bz.add(gy);
jmb.add(wj);
jmb.add(bj);
jmb.add(gs);
jmb.add(ck);
jmb.add(bz);
c.add(jmb,BorderLayout.NORTH);
c.add(jsp,BorderLayout.CENTER);
frame.setVisible(true);//让窗体可见
frame.setResizable(false);//禁止窗体放大
frame.pack();//根据窗口里面的布局及组件的preferedSize来确定frame的最佳大小
jta.requestFocusInWindow();//输入文本域得到焦点
/*各菜单项的单击事件*/
//新建
xj.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
lj = "";//先让路径为空
String nr = jta.getText();
if(!nr.equals("")){//文本域里文本不为空
int result = JOptionPane.showConfirmDialog(
frame, ("是否要保存？"),("保存文件"),JOptionPane.YES_NO_CANCEL_OPTION);
if(result == JOptionPane.NO_OPTION){//不保存
jta.setText("");
}
else if(result == JOptionPane.CANCEL_OPTION){//取消新建
}
else if(result == JOptionPane.YES_OPTION)//选择保存
{
JFileChooser jfc = new JFileChooser();//用于选择保存路径的文件名
int bcf = jfc.showSaveDialog(frame);
if(bcf == JFileChooser.APPROVE_OPTION){
try {
//保存文件
BufferedWriter bfw = new BufferedWriter(
new FileWriter(new File(jfc.getSelectedFile().getAbsolutePath()+".txt")));
lj = jfc.getSelectedFile().getAbsolutePath()+".txt";//获取文件保存的路径
bfw.write(nr);//向文件写出数据
bfw.flush();
bfw.close();//关闭输出流
} catch (IOException ex) {
Logger.getLogger(TextFrame.class.getName()).log(Level.SEVERE, null, ex);
}
new TextFrame();//新建文本文件
}
}
}
}
});
//打开
dk.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JFileChooser jfc = new JFileChooser();//创建一个文件选择类实例
int dkf = jfc.showOpenDialog(frame);
if(dkf == JFileChooser.APPROVE_OPTION){//单击了打开文件窗体中的确定
try {
FileInputStream input = new FileInputStream(new File(
jfc.getSelectedFile().getAbsolutePath()));
int sum = input.available();//得到输入流文件的长度
byte texts[] = new byte[sum];//用来保存读取到的数据
input.read(texts);//将文件读取到texts字节数组中
// BASE64Encoder enc=new BASE64Encoder();
// String str = enc.encode(texts);//字节数组转换成String
String str = new String(texts,"GB2312");//将字节数组转换成中文字符
jta.setText(str);
// FileInputStream is = new FileInputStream(
// jfc.getSelectedFile().getAbsolutePath());
// InputStreamReader streamReader =
// new InputStreamReader(is, "GB2312");
// int in = 0;
// char ch [] = new char[1024];
// String text = "";
// char s = ' ';
// while((in = streamReader.read(ch))!=-1){
// for(int i=0;i<ch.length;i++){
// s = ch[i];
// text += s;
// }
// jta.setText(text);
// }
//streamReader.close();
} catch (Exception ex) {
Logger.getLogger(TextFrame.class.getName()).log(Level.SEVERE, null, ex);
}
}
else
lj = "";
}
});
//保存
bc.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(lj.equals("")){//没有路径时，就另存为
JFileChooser jfc = new JFileChooser();//用于选择保存路径的文件名
int bcf = jfc.showSaveDialog(frame);//弹出保存窗口
if(bcf == JFileChooser.APPROVE_OPTION){
try {
//保存文件
BufferedWriter bfw = new BufferedWriter(
new FileWriter(new File(jfc.getSelectedFile().getAbsolutePath()+".txt")));
lj = jfc.getSelectedFile().getAbsolutePath();
bfw.write(jta.getText());//向文件写出数据
bfw.flush();
bfw.close();//关闭输出流
} catch (IOException ex) {
Logger.getLogger(TextFrame.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
else{//路径不为空时，保存在原来的路径下
try {
//保存文件
BufferedWriter bfw = new BufferedWriter(
new FileWriter(
new File(lj)));
bfw.write(jta.getText());//向文件写出数据
bfw.flush();
bfw.close();//关闭输出流
} catch (IOException ex) {
Logger.getLogger(TextFrame.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
});
//另存为
lcw.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JFileChooser jfc = new JFileChooser();//用于选择保存路径的文件名
int bcf = jfc.showSaveDialog(frame);//弹出保存窗口
if(bcf == JFileChooser.APPROVE_OPTION){
try {
//保存文件
BufferedWriter bfw = new BufferedWriter(
new FileWriter(new File(jfc.getSelectedFile().getAbsolutePath()+".txt")));
lj = jfc.getSelectedFile().getAbsolutePath();
bfw.write(jta.getText());//向文件写出数据
bfw.flush();
bfw.close();//关闭输出流
} catch (IOException ex) {
Logger.getLogger(TextFrame.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
});
//退出
tc.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
dispose();
System.exit(0);
}
});
//打印
dy.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
}
});
//页面设置
ymsz.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
}
});
//自动换行
zdhh.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
jta.setLineWrap(true);
}
});
//字体(点字体设置窗体的叉能关闭字体设置窗体却不能再编辑)
zti.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
final JFrame ztsz = new JFrame("字体设置");
//字体
ztsz.setLocation(150, 200);
frame.setEnabled(false);//文本编辑窗体不可用！
final JComboBox zt = new JComboBox(
GraphicsEnvironment.getLocalGraphicsEnvironment()
.getAvailableFontFamilyNames());
zt.setLocation(30, 80);
Container c = ztsz.getContentPane();
JPanel jp = new JPanel();
jp.add(zt,new FlowLayout());
//字形
String[] faceString={"正常","粗体","斜体","粗斜体"};
String[] sizeString={"初号","小初","一号","小一","二号","小二",
"三号","小三","四号","小四","五号","小五","六号","小六","七号",
"八号","5","8","9","10","11","12","14","16","18","20","22","24",
"26","28","36","48","72"};
final JComboBox zx = new JComboBox(faceString);
final JComboBox dx = new JComboBox(sizeString);
final JButton sure = new JButton("确定");
final JButton cancel = new JButton("取消");
jp.add(zx);
jp.add(dx);
jp.add(sure);
jp.add(cancel);
c.add(jp);
//确定
sure.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(e.getSource()==sure){//将文本设置成所选的字体
if(!jta.getText().equals("")){
jta.setFont(new Font(
zt.getActionCommand(),zx.getSelectedIndex(),
dx.getSelectedIndex()));
frame.setEnabled(true);//文本编辑窗体可用
}
else{
JOptionPane.showMessageDialog(null,
"你的文本中还没有字符，请输入字符后重新设置");
frame.setEnabled(true);
}
}
}
});
cancel.addActionListener(new ActionListener(){//取消
public void actionPerformed(ActionEvent e){
if(e.getSource()==cancel){//关闭字体设置窗体
ztsz.setVisible(false);
frame.setEnabled(true);//文本编辑窗体可用
}
}
});
ztsz.setSize(360, 100);//设置窗体长度100和宽度360
ztsz.setVisible(true);//窗体可见
ztsz.setResizable(false);//禁止放大窗体
}
});
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String args []){
new TextFrame();
}
}
（JAVA）记事本
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