Question

(Java)

Design a class named Person with fields for holding a person’s name, address, and telephone number. Write one or more constructors and the appropriate mutator and accessor methods for the class’s fields.

Next, design a class named Customer, which extends the Person class. The Customer class should have a field for a customer number and a boolean field indicating whether the customer wishes to be on a mailing list. Write one or more constructors and the appropriate mutator and accessor methods for the class’s fields. Demonstrate an object of the Customer class in a simple program.

Answer 1

import java.util.Scanner;
class Person {
   private String name;
   private String address;
   private String phoneNumber;

   public Person() {

   }

   public Person(String aName, String aAddress, String aPhoneNumber) {
       super();
       name = aName;
       address = aAddress;
       phoneNumber = aPhoneNumber;
   }

   public String getName() {
       return name;
   }

   public void setName(String aName) {
       name = aName;
   }

   public String getAddress() {
       return address;
   }

   public void setAddress(String aAddress) {
       address = aAddress;
   }

   public String getPhoneNumber() {
       return phoneNumber;
   }

   public void setPhoneNumber(String aPhoneNumber) {
       phoneNumber = aPhoneNumber;
   }

   @Override
   public String toString() {
       return "name : " + name + ", address : " + address + ", phoneNumber : " + phoneNumber;
   }

}

class Customer extends Person {
   private String customerNumber;
   private boolean isInMailingList;

   public Customer(String aName, String aAddress, String aPhoneNumber, String aCustomerNumber,
           boolean aIsInMailingList) {
       super(aName, aAddress, aPhoneNumber);
       customerNumber = aCustomerNumber;
       isInMailingList = aIsInMailingList;
   }

   public String getCustomerNumber() {
       return customerNumber;
   }

   public void setCustomerNumber(String aCustomerNumber) {
       customerNumber = aCustomerNumber;
   }

   public boolean isInMailingList() {
       return isInMailingList;
   }

   public void setInMailingList(boolean aIsInMailingList) {
       isInMailingList = aIsInMailingList;
   }

   @Override
   public String toString() {
       return super.toString() + " CustomerNumber : " + customerNumber + ", customer wishes to be on a mailing list : "
               + isInMailingList;
   }

}

public class TestPerson {
   public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
       System.out.println("Enter customer name");
       String name = sc.nextLine();
       System.out.println("Enter customer address");
       String address = sc.nextLine();
       System.out.println("Enter customer Phone ");
       String phoneNumber = sc.nextLine();
       System.out.println("Enter customer number");
       String customerNumber = sc.nextLine();
       System.out.println("do you wishe to be on a mailing list? ");
       boolean s = sc.nextBoolean();
       Customer c = new Customer(name, address, phoneNumber, customerNumber, s);
       System.out.println(c);

   }
}

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