i have a 2 data classes

first:

```
public class Question {

    public CharSequence question;
    public Answer answers[];

}

```

second:

```
public class Answer {

    public CharSequence text;
    public int number;
}

```

now i want to save an Answer to Question:

```
Question qstn.answers = new Answer[2];

[...]

```

But i got an NullPointerException. Whats wrong? Can't I change the length of an Array in an other class?