Question

7. PersonData and CustomerData classes Design a class named PersonData with the following member variables: lastName firstName address city state zip phone Write the appropriate accessor and mutator functions for these member variables. Next, design a class named CustomerData, which is derived from the PersonData class. The CustomerData class should have the following member variables: customerNumber mailinglist The customer Number variable will be used to hold a unique integer for each customer. The mailing List variable should be a bool. It will be set to true if the customer wishes to be on a mailing list, or false if the customer does not wish to be on a mail- ing list. Write appropriate accessor and mutator functions for these member variables. Demonstrate an object of the CustomerData class in a simple program

Answer 1

PersonData.java:

public class PersonData {
    private String firstname;
    private String lastname;
    private String address;
    private String city;
    private String zip;
    private String phone;

    /**
     * user constructor
     * @param firstname of person
     * @param lastname of person
     */
    PersonData(String firstname, String lastname){
        this.firstname = firstname;
        this.lastname = lastname;
    }

    /**
     * getter method for first name
     * @return first name of person
     */
    public String getFirstname() {
        return firstname;
    }

    /**
     * setter method for first name
     * @param firstname of person to be set
     */
    public void setFirstname(String firstname) {
        this.firstname = firstname;
    }

    /**
     * getter method for last name
     * @return lastname of user
     */
    public String getLastname() {
        return lastname;
    }

    /**
     * setter method for lastname
     * @param lastname of person
     */
    public void setLastname(String lastname) {
        this.lastname = lastname;
    }

    /**
     * getter method for address
     * @return address of person
     */
    public String getAddress() {
        return address;
    }

    /**
     * setter method for address
     * @param address of person to be set
     */
    public void setAddress(String address) {
        this.address = address;
    }

    /**
     * getter method for city
     * @return city of person
     */
    public String getCity() {
        return city;
    }

    /**
     * setter method for city
     * @param city of person
     */
    public void setCity(String city) {
        this.city = city;
    }

    /**
     * getter method for xip
     * @return zip of person
     */
    public String getZip() {
        return zip;
    }

    /**
     * setter method for zip
     * @param zip of person
     */
    public void setZip(String zip) {
        this.zip = zip;
    }

    /**
     * getter method for phone
     * @return phone of person
     */
    public String getPhone() {
        return phone;
    }

    /**
     * setter method for phoone
     * @param phone of person to be set
     */
    public void setPhone(String phone) {
        this.phone = phone;
    }

    @Override
    public String toString() {
        return " " +
                "firstname='" + firstname + '\'' +
                ", lastname='" + lastname + '\'' +
                ", address='" + address + '\'' +
                ", city='" + city + '\'' +
                ", zip='" + zip + '\'' +
                ", phone='" + phone + '\'';
    }
}

CustomerData.java:

public class CustomerData extends PersonData{
    private int customerNumber;
    private boolean mailingList;

    /**
     * parameterize constructor
     * @param firstname of customer
     * @param lastname of customer
     * @param customerNumber of customer
     */
    CustomerData(String firstname, String lastname, int customerNumber){
        super(firstname, lastname);
        this.customerNumber = customerNumber;
    }

    /**
     * getter method for customer number
     * @return customer number
     */
    public int getCustomerNumber() {
        return customerNumber;
    }

    /**
     * setter method for customer number
     * @param customerNumber of customer
     */
    public void setCustomerNumber(int customerNumber) {
        this.customerNumber = customerNumber;
    }


    /**
     * getter method for maillist
     * @return
     */
    public boolean isMailingList() {
        return mailingList;
    }

    /**
     * setter method of maillist
     * @param mailingList to be set
     */
    public void setMailingList(boolean mailingList) {
        this.mailingList = mailingList;
    }

    @Override
    public String toString() {
        return "C " +
                "customerNumber=" + customerNumber +
                ", mailingList=" + mailingList;
    }
}

Main.java:

public class Main {
    public static void main(String[] args){
        // create new customer
        CustomerData customer = new CustomerData("John","Sharma", 30);

        // print customer details
        System.out.println("Customer id: "+customer.getCustomerNumber());
        System.out.println("Customer name: "+customer.getFirstname()+" "+customer.getLastname());
    }
}

Output:

Customer id: 30 Customer name: John Sharma