2

import java.util.Scanner;
public class Pr1 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in, "windows-1251");

        System.setProperty("console.encoding", "windows-1251");
        int sd, er;
        String mas;
        String slo, key;
        System.out.println("Выберите способ шифрования: ");
        System.out.println("0 - шифр Цезаря");
        System.out.println("1 - побитовое шифрование");
        int ven;
        ven = in.nextInt();
        switch (ven) {
            case 0:{

                System.out.println("Введите символы: ");
                mas = in.nextLine();
                System.out.println("Введите величину сдвига: ");
                sd = in.nextInt();
                char[] mass = mas.toCharArray();
                char o;
                for (int e = 0; e < mass.length; e++) {
                    for (int p = 65; p < 91; p++) {
                        o = (char) p;

                        er = p + sd;
                        if (mass[e] == o) {
                            if (mass[e] == (char) 90) {
                                p = 64;
                                er = p + sd;
                            }
                            mass[e] = (char) er;
                            break;
                        }
                    }
                    for (int p = 97; p < 123; p++) {
                        o = (char) p;
                        er = p + sd;
                        if (mass[e] == o) {
                            if (mass[e] == (char) 122) {
                                p = 96;
                                er = p + sd;
                            }
                            mass[e] = (char) er;
                            break;
                        }
                    }
                }
                System.out.println(mass);
                break;}
            //ЛАБА1 ЗАДАНИЕ 2
            case 1:{

                System.out.println("Введите слово: ");
                slo = in.nextLine();
                char[] slov = slo.toCharArray();
                System.out.println("Введите ключ такой же длинны: ");
                key = in.nextLine();
                char[] keyy = key.toCharArray();
                char[] lol = new char[slov.length];
                char[] lul = new char[slov.length];
                int[] qw = new int[slov.length];
                int[] qwe = new int[slov.length];
                int[] qwer = new int[slov.length];
                for (int s = 0; s < slo.length(); s++) {
                    for (int ss = 1040; ss < 1104; ss++) {
                        char at = (char) ss;
                        if (slov[s] == at) qw[s] = ss - 1040; //1040 включает большие буквы/1071 только маленькие
                    }
                    for (int ss = 1040; ss < 1104; ss++) {
                        char at = (char) ss;
                        if (keyy[s] == at) qwe[s] = ss - 1040;
                    }
                    qwer[s] = qw[s] ^ qwe[s];
                    qwer[s] = qwer[s] + 1040;
                    lol[s] = (char) qwer[s];
                    for (int ss = 1040; ss < 1104; ss++) {
                        char at = (char) ss;
                        if (lol[s] == at) qw[s] = ss - 1040;
                    }
                    qwer[s] = qw[s] ^ qwe[s];
                    qwer[s] = qwer[s] + 1040;
                    lul[s] = (char) qwer[s];
                }
                System.out.println(lol);
                System.out.println(lul);
                break;}
        }
    }
}