Java Programming for Caesor Chiper(Decryption)

import java.util.Scanner;

public class FirstClass {

public static void main(String[] args) {

String Ciphertext = "FHMDZY";

System.out.println("before decryption:"+Ciphertext);

Scanner input = new Scanner(System.in);

System.out.println("enter the key:");

int key = input.nextInt();

System.out.print("After decryption:");

for (int i = 0 ;i < Ciphertext.length() ;i++)

{

int integervalue = (int)Ciphertext.charAt(i);

int position = integervalue - 65;

int temp = (position + 26 - key)%26;

int backposition = temp + 65;

System.out.print((char)backposition);

}

}

}

OUTPUT