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- package com.mycompany.codicedicesare;
- public class Codifica
- {
- public static String crypto(String stringa)
- {
- char arrChar[] = new char[stringa.length()];
- arrChar = stringa.toCharArray();
- // 88 - 65 , 89 - 66, 90 - 67
- for (int i = 0; i < arrChar.length; i++)
- {
- if ((arrChar[i] >= 65) && (arrChar[i] <= 90))
- {
- if (arrChar[i] < 88)
- {
- arrChar[i] += 3;
- }
- else
- {
- arrChar[i] -= 23;
- }
- }
- }
- return String.valueOf(arrChar).toLowerCase();
- }
- package com.mycompany.codicedicesare;
- import java.util.Scanner;
- public class Partenza
- {
- public static void main(String[] args)
- {
- Scanner scan = new Scanner(System.in);
- System.out.println("\nFrase: ");
- String frase = scan.useDelimiter("\n").nextLine().toUpperCase();
- String criptato = Codifica.crypto(frase);
- System.out.println("\n" + criptato);
- String decriptato = Codifica.decrypto(criptato);
- System.out.println("\n" + decriptato);
- }
- }
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