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

public?class?KeyPay?extends?Jframe?{

int?shu1;

JLabel?jl1?jl2;

String?cc;

JButton?queding?xuanz?jiami?jiemi;

JTextField?lujin?key;

JTextArea?nr;

JRadioButton?qu?xie;

ButtonGroup?fz;

File?f;

public?KeyPay（）?{
???Container?c?=?getContentPane（）;
???JPanel?jp1?=?new?JPanel（）;
???jl1?=?new?JLabel（“輸入路徑“）;
???lujin?=?new?JTextField（15）;
???xuanz?=?new?JButton（“選擇“）;
???jp1.add（jl1）;
???jp1.add（lujin）;
???jp1.add（xuanz）;
???c.add（jp1?BorderLayout.NORTH）;

???nr?=?new?JTextArea（）;
???c.add（new?JScrollPane（nr）?BorderLayout.CENTER）;

???qu?=?new?JRadioButton（“寫入“）;
???xie?=?new?JRadioButton（“取出“?true）;
???fz?=?new?ButtonGroup（）;
???fz.add（qu）;
???fz.add（xie）;

???jl2?=?new?JLabel（“密鑰“）;
???key?=?new?JTextField（15）;
???jiami?=?new?JButton（“加密“）;
???jiemi?=?new?JButton（“解密“）;
???JPanel?jp4?=?new?JPanel（）;
???jp4.setLayout（new?GridLayout（2?1?5?5））;
???JPanel?jp2?=?new?JPanel（）;
???jp2.add（jl2）;
???jp2.add（key）;
???jp2.add（jiami）;
???jp2.add（jiemi）;
???jp4.add（jp2）;

???JPanel?jp3?=?new?JPanel（）;
???queding?=?new?JButton（“確定“）;
???jp3.add（qu）;
???jp3.add（xie）;
???jp3.add（queding）;
???jp4.add（jp3）;

???c.add（jp4?BorderLayout.SOUTH）;
???queding.addActionListener（new?ActionListener（）?{
????public?void?actionPerformed（ActionEvent?event）?{
?????jian（）;
?????if?（qu.isSelected（））
??????shuchu（）;
?????if?（xie.isSelected（））
??????qu（）;
????}
???}）;
???xuanz.addActionListener（new?ActionListener（）?{
????public?void?actionPerformed（ActionEvent?event）?{
?????JFileChooser?fileChooser?=?new?JFileChooser（）;?//?實(shí)例化文件選擇器
?????fileChooser
???????.setFileSelectionMode（JFileChooser.FILES_AND_DIRECTORIES）;?//?設(shè)置文件選擇模式此處為文件和目錄均可
?????if?（fileChooser.showOpenDialog（KeyPay.this）?==?JFileChooser.APPROVE_OPTION）?{?//?彈出文件選擇器并判斷是否點(diǎn)擊了打開按鈕
??????String?fileName?=?fileChooser.getSelectedFile（）
????????.getAbsolutePath（）;?//?得到選擇文件或目錄的絕對(duì)路徑
??????lujin.setText（fileName）;
?????}
????}
???}）;

???jiemi.addActionListener（new?ActionListener（）?{
????public?void?actionPerformed（ActionEvent?event）?{
?????objectInputStream?input;
?????try?{
??????input?=?new?objectInputStream（new?FileInputStream（lujin
????????.getText（）））;
??????int?mima?=?Integer.parseInt（key.getText（））;
??????AA?ac?=?（AA）?input.readobject（）;
??????if?（ac.getShu（）?==?mima）?{
???????nr.setText（ac.cc）;
???????shuchu（）;
??????}?else?{
???????nr.setText（“錯(cuò)誤的key“）;
??????}
?????}?catch?（Exception?e）?{
??????//?e.printStackTrace（）;
??????nr.setText（“無法解密“）;
?????}

????}
???}）;

???jiami.addActionListener（new?ActionListener（）?{
????public?void?actionPerformed（ActionEvent?event）?{
?????AA?a?=?new?AA（nr.getText（））;
?????key.setText（a.shu?+?““）;
?????try?{
??????objectOutputStream?output?=?new?objectOutputStream（
????????new?FileOutputStream（lujin.getText（）））;
??????output.writeobject（a）;
??????output.flush（）;
????

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????2798??2012-02-18?15:36??4.文本加密\Demo4.txt

?????文件????????648??2011-01-07?11:46??4.文本加密\文本加密\AA.class

?????文件????????679??2011-01-07?11:46??4.文本加密\文本加密\KeyPay$1.class

?????文件????????871??2011-01-07?11:46??4.文本加密\文本加密\KeyPay$2.class

?????文件???????1223??2011-01-07?11:46??4.文本加密\文本加密\KeyPay$3.class

?????文件???????1438??2011-01-07?11:46??4.文本加密\文本加密\KeyPay$4.class

?????文件???????4216??2011-01-07?11:46??4.文本加密\文本加密\KeyPay.class

?????文件???????5180??2010-12-09?08:13??4.文本加密\文本加密\KeyPay.java

?????文件????????770??2011-12-13?19:35??4.文本加密\賀士兵加密\jiemi.java

?????文件????????985??2011-12-13?19:18??4.文本加密\賀士兵加密\wenjian.java

?????文件????????690??2011-12-12?10:28??4.文本加密\賀士兵加密\文件實(shí)驗(yàn).txt

?????文件??????49152??2011-12-12?12:26??4.文本加密\賀士兵加密\新建?Microsoft?Word?文檔.doc

?????文件????????971??2011-12-12?20:12??4.文本加密\賀士兵加密\新建?文本文檔?（2）.txt

?????文件???????1079??2011-12-12?11:20??4.文本加密\賀士兵加密\新建?文本文檔.txt

?????目錄??????????0??2012-03-03?14:45??4.文本加密\文本加密

?????目錄??????????0??2012-03-03?14:45??4.文本加密\賀士兵加密

?????目錄??????????0??2012-03-03?14:45??4.文本加密

-----------?---------??----------?-----??----

????????????????70700????????????????????17