public class Decipherer {
    public static String DeciphMethod (String message) {
        //Affichage de la taille du mot
            int taille = message.length() / 2;
            //Affichage de la sous-chaine
            String newMessage1 = message.substring(5,taille+5);
            //Remplacement des caracteres speciaux
            String newMessages1 = newMessage1.replace("@#?"," ");
            //Inversement de la chaine
                String inverse = "";
            for(int z = newMessages1.length() - 1;z > -1;--z) {                inverse += newMessages1.charAt(z);            }
            //Affichage final

            return inverse;

    }
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        String message1 = "0@sn9sirppa@#?ia'jgtvryko1";
        String message2 = "q8e?wsellecif@#?sel@#?setuotpazdsy0*b9+mw@x1vj";
        String message3 = "aopi?sedohtém@#?sedhtmg+p9l!";
        System.out.println("Resultat : "+DeciphMethod(message1));
        System.out.println("Resultat : "+DeciphMethod(message2));
        System.out.println("Resultat : "+DeciphMethod(message3));
    }
}