一个简单的java记事本程序-优快云博客

这是一个用Java编写的简易日记本程序，包含了标题、日期、天气和心情输入，支持日记的保存、查看、新建和检索功能。用户可以选择天气并添加表情，程序能够根据输入的天气进行日记数量的统计。

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import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.util.regex.Pattern;
import java.util.regex.Matcher;

import java.io.*;

public class diary extends JFrame{

static String file="a.ou";
JFrame f=new JFrame("日记本");
Container p=f.getContentPane();
Calendar c1=Calendar.getInstance();
File iconDir = new File("心情表情");
JOptionPane jop=new JOptionPane();
File file1=null;
final File[] iconFiles = iconDir.listFiles(new FileFilter() {
            public boolean accept(File file)
             {
              return file.getName().toLowerCase().endsWith(".gif");
                 }
                 });

JLabel jlabel1=new JLabel("标题"),         //建立标签
         jlabel2= new JLabel("日期"),
         jlabel3=new JLabel("天气"),
         jlabel4=new JLabel("心情");



JTextArea
     t4=new JTextArea(1,8),
     t3=new JTextArea(1,8),
     t2=new JTextArea(1,20),
     t1=new JTextArea(40,80);

String[] description={
      "阴天","晴天","下雨了","起风了",        //天气组合框
      "下雪了","有点热","有点冷"};
JComboBox c=new JComboBox();
final JComboBox comboBox = new JComboBox(iconFiles);
JPanel
    pp=new JPanel(),
    pa=new JPanel(),
    ppanel=new JPanel();
FileDialog fd;
JButton                //建立按钮

     save=new JButton("保存日记"),
     open=new JButton("查看日记"),
     newFile =new JButton("新建日记"),
     about=new JButton("关于"),
     search=new JButton("检索日记");

JScrollPane jscrollpane=new JScrollPane(t1);//建立滚动条

public diary(){           //把组件加入到面板中
        ppanel.add(newFile);
        ppanel.add(save);
        ppanel.add(open);
        ppanel.add(search);
        ppanel.add(about);

        pa.add(jlabel1);
        pa.add(t2);
        pa.add(jlabel3);
        pa.add(c);
        pa.add(jlabel4);
        pa.add(comboBox);
        pa.add(jlabel2);
        pa.add(t3);

        pp.add(t4);
        t3.append(c1.get(Calendar.YEAR)+
                 " 年 "+(c1.get(Calendar.MONTH)+1)+
                 " 月 " + c1.get(Calendar.DATE)+"日");
        t4.append(c1.get(Calendar.YEAR)+
                 "."+(c1.get(Calendar.MONTH)+1)+
                 "." + c1.get(Calendar.DATE));
        newFile.addActionListener(new ActionListener(){ //新建日记
            public void actionPerformed(ActionEvent e){
                    save.setEnabled(true);
                    t1.setText(" ");
                    t2.setText(" ");
&nb