String Value

Pytania dotyczące zadania

Inicjalizowanie kotów

Składnia Java, Poziom 5, Lekcja 7

Rozwiązane

Hi, I have question Why if I add this, it does not passes the tests (see this.kolor) :

public void inicjalizuj(String imie, int wiek){
    this.imie = imie;
    this.wiek = wiek;
    this.waga=10;
    this.kolor = null;
}

and this is correct:

public void inicjalizuj(String imie, int wiek){
    this.imie = imie;
    this.wiek = wiek;
    this.waga=10;
    this.kolor = "null";
}

I mean why I can't set Null in String value and I have to add with quote Thanks for help :)

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Licho59

Poziom 18 , Bełchatów, Poland

27 września 2021, 10:01

To Mateusz: Polish version is translated correctly: null is acceptable only for name and address but color as well as weight and age have to get/receive some values (they can not be null!)

Mateusz

Poziom 15 , Torun, Poland

27 września 2021, 12:51

Aaaa , thank you :)

Guadalupe Gagnon

Poziom 37 , Tampa, United States

24 września 2021, 14:06

The task specifically says that color can not be null. Setting it to a null fails this while setting it to any String, including "null", is acceptable.

Mateusz

Poziom 15 , Torun, Poland

24 września 2021, 16:47

In Poland version, is written it can be null value Meybe it is error ?

Guadalupe Gagnon

Poziom 37 , Tampa, United States

24 września 2021, 16:59

The English version, which is what I can pull up, says specifically that it can not be null. I should have said that it in my first post because I have seen other tasks that are not translated properly. I don't have access to the Polish version, so considering it fails when null but passes when it is a String then that must be a mistake in the directions.

John Squirrels Website Admin w CodeGym

25 września 2021, 08:13

If something is unknown, you simply do not add/initialize those variables in a constructor.

Guadalupe Gagnon

Poziom 37 , Tampa, United States

27 września 2021, 13:34

HI John, The OP's problem is that it was failing until they set a value. In the English version of the task it specifically says that "color" can not be null, but the OP says in the Polish version it says that color can be null. I don't have access to the Polish version, so I can't confirm this, but I have seen other tasks where the English version gives different directions than the same task in another language but the validation system for the other language accepts the task as described in the English version. See this help post for an example. The task in French says that the "pourcentage" method should return the percent that b is of a. That is b divided by a times 100. In the English version of the same task (here), it says that the method should return b percent of a, as in "a * (b divided by 100)". The French task didn't pass until the English directions were followed.