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 == at) qw = ss - 1040; //1040 включает большие буквы/1071 только маленькие
}
for (int ss = 1040; ss < 1104; ss++) {
char at = (char) ss;
if (keyy == at) qwe = ss - 1040;
}
qwer = qw ^ qwe;
qwer = qwer + 1040;
lol = (char) qwer;
for (int ss = 1040; ss < 1104; ss++) {
char at = (char) ss;
if (lol == at) qw = ss - 1040;
}
qwer = qw ^ qwe;
qwer = qwer + 1040;
lul = (char) qwer;
}
System.out.println(lol);
System.out.println(lul);
break;
}
}
}