Question
Suppose an encrypted file was created by adding 3 to every value in the file. create a program to decode the encrypted file. Your program
Suppose an encrypted file was created by adding 3 to every value in the file. create a program to decode the encrypted file. Your program should prompt the user to enter an input file name and an output file name .
Run the following program to create the encrypted file. Please use the file temp.dat as input. The file temp.dat is attached to this assignment. Name the output file tempEncryptedf22.dat.
import java.util.Scanner;
import java.io.*;
public class EncryptFile {
public static void main(String[] args) throws Exception {
Scanner input = new Scanner(System.in);
System.out.print("Enter a file to encrypt: ");
BufferedInputStream in = new BufferedInputStream(
new FileInputStream(new File(input.next())));
System.out.print("Enter the output file: ");
BufferedOutputStream output = new BufferedOutputStream(
new FileOutputStream(new File(input.next())));
int value;
while ((value = in.read()) != -1) {
output.write(value + 3);
}
input.close();
output.close();
}}
create a program to decrypt the file tempEncryptedf22.dat. Print each decrypted value as you read and decrypt. Write out the decrypted file to a new file. Name the decrypted file tempDecrypted.dat. Name your program HW6.java.
C. Command Prompt G:\OneDrive\Shared favorites\class Work is 247 wk7_binary 10_ch17\hw>java HW7Solution Enter an encrypted file: tempEncrypted.dat Enter the output file: tempDecrypted.dat wrote decrypted value to the decrypted fil wrote decrypted value 2 to the decrypted file wrote decrypted value 4 to the decrypted file wrote decrypted value 6 to the decrypted file wrote decrypted value 8 to the decrypted file wrote decrypted value 10 to the decrypted file wrote decrypted value 12 to the decrypted file wrote decrypted value 14 to the decrypted file wrote decrypted value 16 to the decrypted file wrote decrypted value 18 to the decrypted file wrote decrypted value 20 to the decrypted file wrote decrypted value 22 to the decrypted file wrote decrypted value 24 to the decrypted file wrote decrypted value 26 to the decrypted file wrote decrypted value 28 to the decrypted file G:\OneDrive\Shared favorites\class Work\is 247 wk7_binary 10_ch17\hw>
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