faf

import java.util.ArrayList;
import java.util.Scanner;


public class Vigchiff {


    public static void main(String[] args) {
        menu();
    }

    private static void menu(){
        int a;
        Scanner scan = new Scanner(System.in);
        System.out.println("1: Chiffrera");
        System.out.println("2: Dechiffrera");
        System.out.println("0: Exit");
        System.out.println("Choose Option..");

        a = scan.nextInt();

        if(a == 0){
            System.out.println("Exiting..");
            System.exit(0);
        }
        if(a == 1){
            System.out.println("Ange meddelande");
            String msg = readLine();

            System.out.println("Ange nyckel");
            String key = readLine();

            System.out.println("Chiffrerad text: " + Encrypt(msg, key));


        }
        if(a == 2){

        }
        else{
            System.out.println("Wrong choice, choose between 0-2");
            menu();
        }
    }

    private static String Encrypt(String msg, String key){
    	ArrayList<Integer> list = new ArrayList<Integer>();
    	String result;
    	StringBuilder sb = new StringBuilder();

    	for(int i = 0; i < msg.length(); i++){
            int x = (int) msg.charAt(i);
            int y = i+1;
            int z = 0;
            if(y > key.length() ){
                y = i%key.length();
            } else {
                z = (int) key.charAt(y-1) + x;
                if(z >)


                list.add(z);
            }
        }

    	for(int i = 0; i<list.size(); i++){
    		sb.append( (char) list.get(i).intValue());
    	}
    	result = sb.toString();
    	return result;
    }

    private String Decrypt(String key){
        String result = new String();
        return result;
    }

    private static String readLine(){
    	Scanner s = new Scanner(System.in);
        String msg = s.nextLine();
    	return msg;
    }

}