Question

IN JAVA

Write a class Store which includes the attributes: store name, city. Write another class encapsulating an Art Gallery, which inherits from Store. An Art Gallery has the following additional attributes: how many paintings are sold every year and the number of artists submitting artwork.

Code the constructor, accessors, mutators, toString and equals method of the super class Store. Code the constructor, accessors and mutators for the subclass Art Gallery. In the Art Gallery class, also code a method returning the average number of paintings per artist.

You should create a test class which creates 2 Art Gallery objects, then calls your set methods, get methods, toString and equals methods and average paintings per artist for the Art Gallery objects.

Answer 1

AS PER THE QUESTION GIVEN

CODE:

STORE CLASS:

public class Store {
   private String name;
   private String city;
  
   public Store() {
       super();
   }
   public Store(String name, String city) {
       super();
       this.name = name;
       this.city = city;
   }
   public String getName() {
       return name;
   }
   public void setName(String name) {
       this.name = name;
   }
   public String getCity() {
       return city;
   }
   public void setCity(String city) {
       this.city = city;
   }
   @Override
   public String toString() {
       return "Store [name=" + name + ", city=" + city + "]";
   }
   @Override
   public boolean equals(Object obj) {
       // TODO Auto-generated method stub
       Store store=(Store) obj;
       if(store.getCity().contentEquals(city) && store.getName().contentEquals(name)) {
           return true;
       }else {
           return false;
       }
   }
  
  
}

ART GALLERY CLASS:

public class ArtGallery extends Store{
   private int numberOfPaintinigsSold;
   private int numberOfArtists;
  
   public ArtGallery() {
       super();
   }
   public ArtGallery(String name, String city, int numberOfPaintinigsSold, int numberOfArtists) {
       super(name, city);
       this.numberOfPaintinigsSold = numberOfPaintinigsSold;
       this.numberOfArtists = numberOfArtists;
   }
   public int getNumberOfPaintinigsSold() {
       return numberOfPaintinigsSold;
   }
   public void setNumberOfPaintinigsSold(int numberOfPaintinigsSold) {
       this.numberOfPaintinigsSold = numberOfPaintinigsSold;
   }
   public int getNumberOfArtists() {
       return numberOfArtists;
   }
   public void setNumberOfArtists(int numberOfArtists) {
       this.numberOfArtists = numberOfArtists;
   }
   @Override
   public String toString() {
       return "ArtGallery [numberOfPaintinigsSold=" + numberOfPaintinigsSold + ", numberOfArtists=" + numberOfArtists
               + "]";
   }
  
   public float averagePaintingsPerArtist() {
       return ((float)numberOfPaintinigsSold)/numberOfArtists;
   }
}

MAIN CLASS:

import java.util.Scanner;

public class Driver {
   public static void main(String[] args) {
       Scanner scanner=new Scanner(System.in);
      
       //create first Art Gallery object
       ArtGallery gallery1=new ArtGallery();
      
       //take the input from user and set the attributes of Art Gallery 1
       System.out.println("Enter the name of your Art Gallery 1: ");
       gallery1.setName(scanner.nextLine());
      
       System.out.println("Enter the city of "+gallery1.getName()+" :");
       gallery1.setCity(scanner.nextLine());
      
       System.out.println("Enter the number of paintings sold every year at "+gallery1.getName()+" :");
       gallery1.setNumberOfPaintinigsSold(scanner.nextInt());
      
       System.out.println("Enter the number of artists at "+gallery1.getName()+" :");
       gallery1.setNumberOfArtists(scanner.nextInt());
       scanner.nextLine(); //skip the next input
      
       //create first Art Gallery object
       ArtGallery gallery2=new ArtGallery();
      
       //take the input from user and set the attributes of Art Gallery 1
       System.out.println("Enter the name of your Art Gallery 2: ");
       gallery2.setName(scanner.nextLine());
      
       System.out.println("Enter the city of "+gallery2.getName()+" :");
       gallery2.setCity(scanner.nextLine());
      
       System.out.println("Enter the number of paintings sold every year at "+gallery2.getName()+" :");
       gallery2.setNumberOfPaintinigsSold(scanner.nextInt());
      
       System.out.println("Enter the number of artists at "+gallery2.getName()+" :");
       gallery2.setNumberOfArtists(scanner.nextInt());
      
       System.out.println("Average number of paintings per Artist at "+gallery1.getName()+" is :- "+gallery1.averagePaintingsPerArtist());
       System.out.println("Average number of paintings per Artist at "+gallery2.getName()+" is :- "+gallery2.averagePaintingsPerArtist());
      
   }
}

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