CalculatorClass

package productorder;

public class Calculator {
    private Products[] products;
    private Orders[] orders;

    public Calculator(Products[] prod, Orders[] ord)
    {
        products = prod.clone();
        orders = ord.clone();
    }

    public double CalculateCost() {
        double sum = 0;
        for (int i = 0; i < products.length; i++) {
            String currProd = products[i].getName();
            double currPrice = products[i].getPrice();
            for (int j = 0; j < orders.length; j++) {
                String currOrder = orders[j].getName();
                double currQty = orders[j].getQty();
                if (currProd.equals(currOrder)) {
                    sum += (currPrice*currQty);
                }
            }
        }
        return sum;
    }
}