answerDTO{

    int questionNumber;

    int radioButtonSelection; //sita fielda setinti, kai yra radioButton klausimas

    List<boolean> checkboxSelection; //sita fielda setinti, kai yra checbox klausimas

    String answerToText; //sita fielda setinti, kai yra atviras klausimas

    int scaleSelection; //sita fielda setinti, kai reikia pasirinkti skaiciu
}

t.y. JS daryti taip

question.radioButtonSelection

question.checkboxSelection

question.answerToText

question.scaleSelection