public String getStringQuestionario() {
    String quest = "";
    for (int i = 0; i < questionarioFiltratoPerNome.RisposteQuestionario.size(); i++)
      quest += questionarioFiltratoPerNome.RisposteQuestionario.get(i) + "\t";

    return quest;
  }
 public void printQuestionarioFiltrato() {
   for (int i = 0; i < questionarioFiltratoPerNome.RisposteQuestionario.size(); i++)
     System.out.print(questionarioFiltratoPerNome.RisposteQuestionario.get(i) + "\t");
 }