import java.util.*;

public class Code_analyse_frequence
{
    static ArrayList<Character> text_lettre = new ArrayList<Character>();
    public static Scanner read = new Scanner(System.in);

    public static ArrayList<Character> antidoublon ( ArrayList<Character> newlist)
    {
        ArrayList <Character> List = new ArrayList<Character>();
        for(int i = 0 ; i < newlist.size(); i++)
        {
            Object o =newlist.get(i);
            if(!List.contains(o))
                List.add(newlist.get(i));
        }
        return List;
    }

    public static ArrayList<Character> antilettreMaj(ArrayList<Character>newlist)
    {

        for (int i =0 ; i < newlist.size(); i++) {
            if((int)newlist.get(i) >= 65 && (int)newlist.get(i) <=90 )
            {
                newlist.set(i,(char)((int)newlist.get(i)+32));
            }

        }
        return newlist;
    }

    public static void decode(ArrayList<Character>newlist , int decalage)
    {
        String text= "";
        char lettre='\0';
        int nb_charact = newlist.size();

        for(int i = 0 ; i<nb_charact ; i++)
        {
            lettre = newlist.get(i);
            if (lettre <97||lettre >122) {
                text+=(char)lettre;
                continue;
            }
            if (decalage >0)
            {
                for (int nb = 0;nb<decalage;nb++)
                {
                    lettre -= 1;
                    if (lettre <97)
                        lettre=122;
                }
                text+=(char)lettre;
            }
            else
            {
                for (int nb = 0;nb<-decalage;nb++)
                {
                    lettre += 1;
                    if (lettre >122)
                        lettre=97;
                }
                text+=(char)lettre;
            }
        }
        System.out.println(text);



    }

    public static void code(ArrayList<Character>newlist,int decalage)
    {
        String text= "";
        char lettre='\0';
        int nb_charact = newlist.size();

        for(int i = 0 ; i<nb_charact ; i++)
        {
            lettre = newlist.get(i);
            if (lettre <97|| lettre >122) {
                text+=(char)lettre;
                continue;
            }
            if (decalage >0)
            {
                for (int nb = 0;nb<decalage;nb++)
                {
                    lettre+= 1;
                    if (lettre >122)
                        lettre=97;
                }
                text+=(char)lettre;
            }
            else
            {
                for (int nb = 0;nb<-decalage;nb++)
                {
                    lettre -= 1;
                    if (lettre <97)
                        lettre=122;
                }
                text+=(char)lettre;
            }
        }
        System.out.println(text);
    }

    public static ArrayList<String> afficherTous(ArrayList<Character>newlist) {

        ArrayList<String> texteTraduit = new ArrayList<String>();
        String text= "";
        char lettre='\0';
        int nb_charact = newlist.size();
        for(int ii =0 ; ii<=25 ; ii++)
        {
            for(int i = 0 ; i<nb_charact ; i++)
            {
                lettre = newlist.get(i);
                if (lettre <90) {
                    text+=(char)lettre;
                    continue;
                }
                for (int nb = 0;nb<=ii;nb++)
                {
                    lettre += 1;
                    if (lettre >90)
                        lettre=65;
                }
             text+=(char)lettre;

            }
            texteTraduit.add(text);
            text="";
        }
        return texteTraduit;

    }

    /*public static ArrayList<Character>textList(String texte)
    {
        ArrayList<Character> text_lettre = new ArrayList<Character>();
        int nb_charact = texte.length();

         for(int i = 0 ; i<nb_charact ; i++)
             text_lettre.add(i,texte.charAt(i));
         antilettreMaj(text_lettre);
         return text_lettre;
    }*/

    public static void AnalyseFreq(ArrayList<Character>newlist)
    {
         int posnbmax=0 , nbmax=0 ,nblettre=0,difference=0;// mot ayant le meme nombre de lettre ;
         char LettreE,lettrefreq;
         boolean test = false ;


         ArrayList<Character> lettre = new ArrayList<Character>();

         lettre.addAll(antidoublon(newlist));
         System.out.println(lettre+"!!!!");

        //////////////////////////////////////////////
        //cette partie du code va analiser la frequence des lettre codé
        //////////////////////////////////////////////
         for (int i =0 ;i < lettre.size() ;i++)
          {

             for (int ii =0 ;ii<newlist.size() ;ii++)
             {
                test = lettre.get(i)==newlist.get(ii);

                if(test)
                   nblettre++;
             }
             if(nblettre>nbmax)
             {
                 posnbmax = i;
                 nbmax = nblettre;
             }

            // nb_lettre.add(i,nblettre);
             nblettre = 0;
          }
        //////////////////////////////////////////////
        //cette partie du code va s'occuper de donner la difference avec la lettre la plus commune, et redemander de tenter a chaque fois ou donner l'ordre de tous afficher
        //////////////////////////////////////////////

         System.out.println("rentrez la lettre la plus utilisé "+posnbmax);
         lettrefreq= read.nextLine().charAt(0);
         LettreE = lettre.get(posnbmax);
         System.out.println(LettreE+"mlml");
         difference = (int)LettreE-(int)lettrefreq;

         System.out.println(difference);
         decode(newlist,difference);

    }

    static void init() {

        System.out.println("rentrez votre texte a traduire");
        String texte = read.nextLine();
        int nb_charact = texte.length();

         for(int i = 0 ; i<nb_charact ; i++)
             text_lettre.add(i,texte.charAt(i));
         antilettreMaj(text_lettre);
    }

public static void main(String[] args)
    {
        init();
        code(text_lettre,3);
        read.close();
    }
}