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  1. Caesar Cipher
  2. Discussions

Caesar Cipher

  • desai_n990
     + 0 comments
     public static String caesarCipher(String s, int k) {
    // Write your code here
        char[] encrypString=new char[s.length()];
        if(k>26){
            int it = k/26;
            k = k - (it*26);
        }
        for(int i =0;i<s.length();i++){
            int ascii = s.charAt(i);
            System.out.println(ascii);
            if(ascii >='a' && ascii <= 'z'){
                ascii = s.charAt(i) + k;
                if(ascii > 'z'){
                    ascii = ascii - (26);
                }
            }
            if(ascii >='A' && ascii <= 'Z'){
                ascii = s.charAt(i) + k;
                if(ascii > 'Z'){
                    ascii = ascii - (26);
                }
            }
            encrypString[i] = (char) ascii;
        }
        return new String(encrypString);
    }

}