CODEWITHSUNDEEP
java
Breezybree711
Breezybree711

Reputation: 21

Writing a class using another class

I am trying to use the Die class when writing a PairOfDice class. Here is the Die class:

public static class Die {
    private final int MAX = 6;
    private int faceValue;

    public Die()
    {
        faceValue = 1;
    }

    public int roll()
    {
        faceValue = (int)(Math.random() * MAX) + 1;
        return faceValue;
    }

    public void setFaceValue(int value)
    {
        if(value > 0 && value <= MAX)
            faceValue = value;
    }

    public int getFaceValue()
    {
        return faceValue;
    }

    public String toString()
    {
        String result = Integer.toString(faceValue);
        return result;
    }
}

Now what I am trying to do is to use this class to write a similar class called PairOfDice. I want similar methods of rolling the dice, setting the face value, and so on. However I have never done this before so I'm not sure how to approach this. Here is what I have so far:

public static class PairOfDice {

    Die die1 = new Die();
    Die die2 = new Die();

    public PairOfDice()
    {
        ????
    }

    public int rollPair()
    {
        ????
    }
}

I'm not sure how to appropriately use these objects. Please keep in mind I am a beginner in java/programming.

Upvotes: 2

Views: 77

Answers (1)

Elliott Frisch
Elliott Frisch

Reputation: 201447

You don't appear to need anything in the constructor, you've initialized the die fields where you declared them. Just call them in your method. Something like,

public int rollPair()
{
    return die1.roll() + die2.roll();
}

Upvotes: 1

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