Primitives Types HW Post

2006 FRQ 2a

public interface Item {
    double purchasePrice();
}

// Class TaxableItem implements the interface Item, which contains the method purchasePrice()
public abstract class TaxableItem implements Item {
    private double taxRate;

    public abstract double getListPrice();

    // Constructor for initializing the tax rate, if there is any
    public TaxableItem(double rate){
        taxRate = rate;
    }

    // Calculates the purchase price of an item by multiplying the tax rate by the list price, then adding that to the original list price
    // If there is no tax rate, then the purchase price is simply equal to the list price
    public double purchasePrice() {
        double purchasePriceValue = getListPrice() + (taxRate * getListPrice());
        return purchasePriceValue;
        // Alternate way:
        // return getListPrice() * (1.0 + taxRate);

    }
}

// Since we are working with an abstract class, we would have to extend to it with another class in order to run our program
// As of right now, the class hierarchy seems to be very complicated, so I will further research ways to output the program results

2006 FRQ 3a

public class Customer {
    private String cName;
    private int cID;

    // Constructor to initialize customer name and id
    public Customer(String name, int idNum) {
        cName = name;
        cID = idNum;
    }

    // Gets the name of the specified customer
    public String getName() {
        return cName;
    }

    // Gets the unique ID of the specified customer
    public int getID() {
        return cID;
    }

    // Compares given customer with another customer. Returns a positive integer if the customer is greater than the other customer, 
    // 0 if they are equal, and a negative integer if the customer is less than the other customer.
    public int compareCustomer(Customer other) {
        int nameComparison = getName().compareTo(other.getName());
        if (nameComparison != 0) {
            return nameComparison;
        } else {
            if (getID() != other.getID()) {
                return getID() - other.getID();
            }
        }
        return 0;
    }

    // Running method for visualizing outputs
    public static void main(String[] args) {
        Customer c1 = new Customer("Smith", 1001);
        Customer c2 = new Customer("Anderson", 1002);
        Customer c3 = new Customer("Smith", 1003);
        Customer c4 = new Customer("Will", 1004);
        System.out.println(c1.compareCustomer(c4));
    }
}

Customer.main(null);

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