2.练习_文件的加密
学习：第7遍
1.练习：文件的加密 a.txt ——> a.txt.sec
思路：读取文件中的每个字节，与pwd进行异或的操作
public class TestRandomAccessFile {
public static void main(String
[] args
) {
Scanner input
= new Scanner(System
.in
);
System
.out
.print("请输入文件路径：");
String filePath
=input
.nextLine();
System
.out
.print("请输入密码：");
int pwd
= input
.nextInt();
secret(filePath
, pwd
);
System
.out
.println("加密成功");
}
public static void secret(String filePath
,int pwd
){
try(
FileInputStream fis
=new FileInputStream(filePath
);
FileOutputStream fos
= new FileOutputStream(filePath
+".sec");
){
int data
=-1;
while((data
=fis
.read())!=-1){
fos
.write(data
^ pwd
);
}
}catch(IOException e
){
e
.printStackTrace();
}
}
}
