/**
  * Displays the most frequent byte in each container of monoalphabetic ciphertext. Displays more
  * than one byte in each container if a given monoalphabetic ciphertext was repeated an equal
  * number of times.
  */
 public void printFrequentBytes() {
   for (ByteFrequencyList list : frequencyList) {
     System.out.print("[");
     for (int i = 0; i < list.getRepetitiveBytes().length; i++) {
       System.out.print(String.format("%02X", list.getRepetitiveBytes()[i]));
       if (i != list.getRepetitiveBytes().length - 1) System.out.print(", ");
     }
     System.out.println("]");
   }
 }