Question

I need help. So my code is pretty much finished up but in my DessertTester when I try to run it I get the following error, " Exception in thread "main" java.lang.StackOverflowError   at Fruit.getPricePerPound(Fruit.java:15)." Below I have pasted my dessert class, and my fruit class.

Fruit :

public class Fruit extends Dessert {
    protected final double weightInPounds;
    protected final double pricePerPound;
    public Fruit(String name, double weightInPounds, double pricePerPound){
        super(name);

        this.weightInPounds = weightInPounds;
    this.pricePerPound = pricePerPound;

    }
    public final double getWeightInPounds(){
        return weightInPounds;
    }
    public final double getPricePerPound(){
        return getPricePerPound();
    }
    public double getPrice(){
        return getWeightInPounds() * getPricePerPound();

    }

}

Dessert:

public abstract class Dessert {
    /** Name of the dessert item. */
    protected final String name;

    /**
     * Constructs a new dessert item.
     * @param name Name of the dessert.
     */
    public Dessert(String name) {
        this.name = name;
    }

    /**
     * Get name of the dessert.
     * @return dessert name
     */
    public final String getName() {
        return name;
    }

    /**
     * Get the price of the dessert.
     * @return Dessert price
     */
    public abstract double getPrice();
}

In my IDE, in the fruit class at the beginning of "public double getPrice();" my IDE states, " Implements method in Desserts" and also, at the bottom of my  public final double getPricePerPound, my IDE states," recursive call". Can you help me fix this? 

Answer 1

this is the mistake in your code

public final double getPricePerPound(){
        return getPricePerPound();
    }

it should be

public final double getPricePerPound() {
    return pricePerPound;
}

//final code is here

public abstract class Dessert {
    /** Name of the dessert item. */
    protected final String name;

    /**
     * Constructs a new dessert item.
     * @param name Name of the dessert.
     */
    public Dessert(String name) {
        this.name = name;
    }

    /**
     * Get name of the dessert.
     * @return dessert name
     */
    public final String getName() {
        return name;
    }

    /**
     * Get the price of the dessert.
     * @return Dessert price
     */
    public abstract double getPrice();
}

public class Fruit extends Dessert {
    protected final double weightInPounds;
    protected final double pricePerPound;

    public Fruit(String name, double weightInPounds, double pricePerPound) {
        super(name);

        this.weightInPounds = weightInPounds;
        this.pricePerPound = pricePerPound;

    }

    public final double getWeightInPounds() {
        return weightInPounds;
    }

    public final double getPricePerPound() {
        return pricePerPound;
    }


    @Override
    public double getPrice() {
        return getWeightInPounds() * getPricePerPound();
    }
}

public class DessertTester {
    public static void main(String[] args)
    {
        // creating object of fruit class
        Fruit fruit = new Fruit("Apple",78.9,23.45);
        //display object's details
        System.out.println(fruit.getName()+" "+fruit.getPricePerPound()+" "+fruit.getWeightInPounds()+" "+fruit.getPrice());

    }
}

//output

//if you need any help regarding this solution .......... please leave a comment ............. thanks