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Oct 19th, 2019
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  1. public class deciPherer {
  2.  
  3. public static void main(String[] args){
  4.  
  5. String messageOne = "0@sn9sirppa@#?ia'jgtvryko1";
  6. String messageTwo = "q8e?wsellecif@#?sel@#?setuotpazdsy0*b9+mw@x1vj";
  7. String messageTree = "aopi?sedohtém@#?sedhtmg+p9l!";
  8.  
  9. String messageOneDeco = decodage(messageOne);
  10. String messageTwoDeco = decodage(messageTwo);
  11. String messageTreeDeco = decodage(messageTree);
  12.  
  13. System.out.println(messageOneDeco);
  14. System.out.println(messageTwoDeco);
  15. System.out.println(messageTreeDeco);
  16.  
  17. }
  18. public static String decodage (String chara){
  19.  
  20. // Divisé par deux chaine carractére
  21. int clef = chara.length() / 2;
  22. //y extraire une sous chaine (6 carractére --> longueur chaine)
  23. chara = chara.substring(5, 5 + clef);
  24. //y remplacer "@#?" par " "
  25. chara = chara.replace("@#?", " ");
  26. //inversé
  27. String decoder = new StringBuilder(chara).reverse().toString();
  28. // retourner le resultat
  29. return decoder;
  30.  
  31. }
  32. }
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