initialise superclass array in subclass (java)

Question

I am new to JAVA / Android programming and have a small problem.

I created in a Superclass a Array and wanted to initialize it in multiple subclasses. But when I try to initialize it, it says it's not possible.

My code:

public abstract class Fragen {

 String[] Deutsch;
 String[] Slowakisch;

static int Anzahl;
Random random;
int randNumber;

byte Fächer;

public String displayQuestion()
{

    //TODO Fach abfragen
    randNumber = random.nextInt(Anzahl);

    return Slowakisch[randNumber];

}

public boolean correctAnswer(String answer)
{
    //TODO Fächer +/-

    if(answer.equals(Deutsch[randNumber]))
        return true;

    else
        return false;
}
}

(Superclass)

 public class Lektion1 extends Fragen
{
    private Lektion1()
    {
        super();
        Anzahl = 60;
        //Deutsch = new String[];
        Deutsch = {"",""};
        Slowakisch = {"",""};
    }
}

(Subclass)

Answer 1

Try this:

public class Lektion1 extends Fragen
{
    private Lektion1()
    {
        super();
        Anzahl = 60;
        //Deutsch = new String[];
        Deutsch = new String[]{"", ""};
        Slowakisch = new String[]{"", ""};
    }
}