import?java.io.*;

public?class?EncryptFile?{
????//?文件簡單加密方法
public?void?encry（String?frontFile?String?backFile）?{
????try?{
????????File?f?=?new?File（frontFile）;???//根據加密文件地址創建文件對象
????????FileInputStream?fileInputStream?=?new?FileInputStream（f）;???//創建FileInputStream對象
????????byte[]?buffer?=?new?byte[fileInputStream.available（）];??//從流中讀取字節
????????fileInputStream.read（buffer）;???????//從流中讀取字節
????????fileInputStream.close（）;????????????//把輸出流關閉
????????for?（int?i?=?0;?i?????????????int?ibt?=?buffer[i];
????????????ibt?+=?100;?????????????????????//將數組中數據做相加運算
????????????ibt?%=?256;
????????????buffer[i]?=?（byte）?ibt;
????????}
????????FileOutputStream?fileOutputStream?=?new?FileOutputStream（new?File（
????????????????backFile

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????301??2010-09-10?15:22??.classpath
?????文件?????????379??2010-09-10?15:22??.project
?????文件????17643085??2010-09-28?18:33??文件簡單加密解密.exe
?????文件?????????629??2010-09-10?15:22??.settings\org.eclipse.jdt.core.prefs
?????文件????????1683??2013-11-21?08:42??bin\EncryptFile.class
?????文件?????????752??2013-11-21?08:42??bin\EnctryAndUnEntryframe$1.class
?????文件?????????718??2013-11-21?08:42??bin\EnctryAndUnEntryframe$2.class
?????文件?????????717??2013-11-21?08:42??bin\EnctryAndUnEntryframe$3.class
?????文件?????????720??2013-11-21?08:42??bin\EnctryAndUnEntryframe$4.class
?????文件?????????720??2013-11-21?08:42??bin\EnctryAndUnEntryframe$5.class
?????文件?????????719??2013-11-21?08:42??bin\EnctryAndUnEntryframe$6.class
?????文件?????????722??2013-11-21?08:42??bin\EnctryAndUnEntryframe$7.class
?????文件????????5639??2013-11-21?08:42??bin\EnctryAndUnEntryframe.class
?????文件????????2174??2013-11-20?10:21??src\EncryptFile.java
?????文件????????8106??2010-09-10?15:22??src\EnctryAndUnEntryframe.java