notepad.java

个人开发的数字助理

package 日历记事本;

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import java.io.*;

public class NotePad extends JPanel implements ActionListener {
	JTextArea	text;

	JButton		保存日志, 删除日志;

	Hashtable	table;

	JLabel		信息条;

	int			year, month, day;

	File		file;

	CalendarPad	calendar;

	 JScrollPane jScrollPane = new JScrollPane();
//	 jScrollPane.setBounds(new Rectangle(28, 32, 406, 205));
//	 jScrollPane.setViewportView(getJTextArea());
//	----------------------------------------------------------------------------------------------------------------------------------------
	public NotePad(CalendarPad calendar)
		{
			this.calendar = calendar;
			year = calendar.getYear();
			month = calendar.getMonth();
			day = calendar.getDay();
			;
			table = calendar.getHashtable();
			file = calendar.getFile();
			信息条 = new JLabel("" + year + "年" + month + "月" + day + "日",
					JLabel.CENTER);
			信息条.setFont(new Font("TimesRoman", Font.BOLD, 16));
			信息条.setForeground(Color.blue);
			text = new JTextArea(10, 10);
			保存日志 = new JButton("保存日志");
			删除日志 = new JButton("删除日志");
			保存日志.addActionListener(this);
			删除日志.addActionListener(this);
			setLayout(new BorderLayout());
			// setLayout(new FlowLayout());
			JPanel pSouth = new JPanel();
			add(信息条, BorderLayout.NORTH);
			pSouth.add(保存日志);
			pSouth.add(删除日志);
			add(pSouth, BorderLayout.SOUTH);
			add(new JScrollPane(text), BorderLayout.CENTER);
		}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public void actionPerformed(ActionEvent e) {
		if (e.getSource() == 保存日志)
			{
				保存日志(year, month, day);
			}
		else if (e.getSource() == 删除日志)
			{
				删除日志(year, month, day);
			}
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public void setYear(int year) {
		this.year = year;
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public int getYear() {
		return year;
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public void setMonth(int month) {
		this.month = month;
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public int getMonth() {
		return month;
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public void setDay(int day) {
		this.day = day;
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public int getDay() {
		return day;
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public void 设置信息条(int year, int month, int day) {
		信息条.setText("" + year + "年" + month + "月" + day + "日");
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public void 设置文本区(String s) {
		text.setText(s);
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public void 获取日志内容(int year, int month, int day) {
		String key = "" + year + "" + month + "" + day;
		try
			{
				FileInputStream inOne = new FileInputStream(file);
				ObjectInputStream inTwo = new ObjectInputStream(inOne);
				table = (Hashtable) inTwo.readObject();
				inOne.close();
				inTwo.close();
			} catch (Exception ee)
			{
			}
		if (table.containsKey(key))
			{
				String m = "" + year + "年" + month + "月" + day
						+ "这一天有日志记载,想看吗?";
				int ok = JOptionPane
						.showConfirmDialog(this, m, "询问",
								JOptionPane.YES_NO_OPTION,
								JOptionPane.QUESTION_MESSAGE);
				if (ok == JOptionPane.YES_OPTION)
					{
						text.setText((String) table.get(key));
					}
				else
					{
						text.setText("");
					}
			}
		else
			{
				text.setText("无记录");
			}
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public void 保存日志(int year, int month, int day) {
		String 日志内容 = text.getText();
		String key = "" + year + "" + month + "" + day;

		String m = "" + year + "年" + month + "月" + day + "保存日志吗?";
		int ok = JOptionPane.showConfirmDialog(this, m, "询问",
				JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
		if (ok == JOptionPane.YES_OPTION)
			{
				try
					{
						FileInputStream inOne = new FileInputStream(file);
						ObjectInputStream inTwo = new ObjectInputStream(inOne);
						table = (Hashtable) inTwo.readObject();
						inOne.close();
						inTwo.close();
						table.put(key, 日志内容);
						FileOutputStream out = new FileOutputStream(file);
						ObjectOutputStream objectOut = new ObjectOutputStream(
								out);
						objectOut.writeObject(table);
						objectOut.close();
						out.close();
					} catch (Exception ee)
					{
					}
			}
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
	public void 删除日志(int year, int month, int day) {
		String key = "" + year + "" + month + "" + day;
		if (table.containsKey(key))
			{
				String m = "删除" + year + "年" + month + "月" + day + "日的日志吗?";
				int ok = JOptionPane
						.showConfirmDialog(this, m, "询问",
								JOptionPane.YES_NO_OPTION,
								JOptionPane.QUESTION_MESSAGE);
				if (ok == JOptionPane.YES_OPTION)
					{
						try
							{
								FileInputStream inOne = new FileInputStream(
										file);
								ObjectInputStream inTwo = new ObjectInputStream(
										inOne);
								table = (Hashtable) inTwo.readObject();
								inOne.close();
								inTwo.close();
								table.remove(key);
								FileOutputStream out = new FileOutputStream(
										file);
								ObjectOutputStream objectOut = new ObjectOutputStream(
										out);
								objectOut.writeObject(table);
								objectOut.close();
								out.close();
								text.setText(null);
							} catch (Exception ee)
							{
							}
					}
			}
		else
			{

				String m = "" + year + "年" + month + "月" + day + "无日志记录";
				JOptionPane.showMessageDialog(this, m, "提示",
						JOptionPane.WARNING_MESSAGE);
			}
	}
//	----------------------------------------------------------------------------------------------------------------------------------------
}