Question

Step 1: Create a new Java project named ContainerPartyProject

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Step 2: Add a ContainerParty class to your project. It should contain:

            - The date of the party

            - A list of people attending

            - A list of containers at the party

            - The address of the party (this can be either a String or a Class)

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Step 3: Add a Container class in your project. It should be an abstract class. Your Container class must be properly encapsulated and include the following attributes:

• brand
• height
• color

In addition to a constructor that allows you to set all of these values, it should include a getInfo() method and an abstract calculateVolume() method.

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Step 4: Add a CircularContainer class to your project. Your CircularContainer must be a subclass of your Container class. In addition to the attributes that it inherits from Container, CircularContainer should add the following attributes:

• radius

It should include a getInfo() method and a calculateVolume() method that override the versions of these methods from your parent class. You may use the following formula for volume:

volume=π⋅radius²⋅height

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Step 5: Add a RectangularContainer class to your project. Your RectangularContainer must be a subclass of your Container class. In addition to the attributes that it inherits from Container, RectangularContainer should add the following attributes:

• width
• length

It should include a getInfo() method and a calculateVolume() method that override the versions of these methods from your parent class. You may use the following formula for volume:

volume=length⋅width⋅height

Important: In steps 3 and 4, your getInfo() methods must use the super keyword to leverage the getInfo() method of its superclass (Container).  Remember DRY - Don’t Repeat Yourself! You should not unnecessarily duplicate any code between getInfo() in your subclass and superclass!

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Step 6: Create a Person class with 3 attributes of your choice. Create attributes, methods, and constructors as necessary to complete the assignment.

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Answer 1

/***************************ContainerParty.java**********************/

import java.util.ArrayList;

/**
* The Class ContainerParty.
*/
public class ContainerParty {

   /** The date. */
   private String date;
  
   /** The peoples. */
   private ArrayList<Person> peoples;
  
   /** The containers. */
   private ArrayList<Container> containers;
  
   /** The address. */
   private String address;

   /**
   * Instantiates a new container party.
   *
   * @param date the date
   * @param peoples the peoples
   * @param containers the containers
   * @param address the address
   */
   public ContainerParty(String date, ArrayList<Person> peoples, ArrayList<Container> containers, String address) {
       super();
       this.date = date;
       this.peoples = peoples;
       this.containers = containers;
       this.address = address;
   }

   /**
   * Gets the date.
   *
   * @return the date
   */
   public String getDate() {
       return date;
   }

   /**
   * Sets the date.
   *
   * @param date the new date
   */
   public void setDate(String date) {
       this.date = date;
   }

   /**
   * Gets the peoples.
   *
   * @return the peoples
   */
   public ArrayList<Person> getPeoples() {
       return peoples;
   }

   /**
   * Sets the peoples.
   *
   * @param peoples the new peoples
   */
   public void setPeoples(ArrayList<Person> peoples) {
       this.peoples = peoples;
   }

   /**
   * Gets the containers.
   *
   * @return the containers
   */
   public ArrayList<Container> getContainers() {
       return containers;
   }

   /**
   * Sets the containers.
   *
   * @param containers the new containers
   */
   public void setContainers(ArrayList<Container> containers) {
       this.containers = containers;
   }

   /**
   * Gets the address.
   *
   * @return the address
   */
   public String getAddress() {
       return address;
   }

   /**
   * Sets the address.
   *
   * @param address the new address
   */
   public void setAddress(String address) {
       this.address = address;
   }

}
/*******************************Container.java************************/

/**
* The Class Container.
*/
public abstract class Container {

   /** The brand. */
   private String brand;
  
   /** The height. */
   private double height;
  
   /** The color. */
   private String color;

   /**
   * Instantiates a new container.
   *
   * @param brand the brand
   * @param height the height
   * @param color the color
   */
   public Container(String brand, double height, String color) {
       super();
       this.brand = brand;
       this.height = height;
       this.color = color;
   }

   /**
   * Gets the brand.
   *
   * @return the brand
   */
   public String getBrand() {
       return brand;
   }

   /**
   * Gets the height.
   *
   * @return the height
   */
   public double getHeight() {
       return height;
   }

   /**
   * Gets the color.
   *
   * @return the color
   */
   public String getColor() {
       return color;
   }

   /**
   * Calculate volume.
   *
   * @return the double
   */
   public abstract double calculateVolume();

   /**
   * Gets the info.
   *
   * @return the info
   */
   public String getInfo() {

       return "Brand: " + brand + "\nHeight: " + height + "\nColor: " + color;
   }
}
/*************************************CircularContainer.java*****************************/

/**
* The Class CircularContainer.
*/
public class CircularContainer extends Container {

   /** The radius. */
   private double radius;

   /**
   * Instantiates a new circular container.
   *
   * @param brand the brand
   * @param height the height
   * @param color the color
   * @param radius the radius
   */
   public CircularContainer(String brand, double height, String color, double radius) {
       super(brand, height, color);
       this.radius = radius;
   }

   /**
   * Gets the radius.
   *
   * @return the radius
   */
   public double getRadius() {
       return radius;
   }

   /*
   * (non-Javadoc)
   *
   * @see Container#calculateVolume()
   */
   @Override
   public double calculateVolume() {

       return Math.PI * radius * radius;
   }

   /*
   * (non-Javadoc)
   *
   * @see Container#getInfo()
   */
   @Override
   public String getInfo() {

       return super.getInfo() + "\nRadius: " + radius;
   }

}
/*********************************RectangularContainer.java********************************/

/**
* The Class RectangularContainer.
*/
public class RectangularContainer extends Container {

   /** The width. */
   private double width;

   /** The length. */
   private double length;

   /**
   * Instantiates a new rectangular container.
   *
   * @param brand the brand
   * @param height the height
   * @param color the color
   * @param width the width
   * @param length the length
   */
   public RectangularContainer(String brand, double height, String color, double width, double length) {
       super(brand, height, color);
       this.width = width;
       this.length = length;
   }

   /**
   * Gets the width.
   *
   * @return the width
   */
   public double getWidth() {
       return width;
   }

   /**
   * Gets the length.
   *
   * @return the length
   */
   public double getLength() {
       return length;
   }

   /*
   * (non-Javadoc)
   *
   * @see Container#calculateVolume()
   */
   @Override
   public double calculateVolume() {

       return length * width * getHeight();
   }

   /*
   * (non-Javadoc)
   *
   * @see Container#getInfo()
   */
   @Override
   public String getInfo() {

       return super.getInfo() + "\nWidth: " + width + "\nLength: " + length;
   }

}
/*******************************Person.java***********************/

/**
* The Class Person.
*/
public class Person {

   /** The id. */
   private String id;

   /** The name. */
   private String name;

   /** The age. */
   private int age;

   /**
   * Instantiates a new person.
   *
   * @param id the id
   * @param name the name
   * @param age the age
   */
   public Person(String id, String name, int age) {
       super();
       this.id = id;
       this.name = name;
       this.age = age;
   }

   /**
   * Gets the id.
   *
   * @return the id
   */
   public String getId() {
       return id;
   }

   /**
   * Sets the id.
   *
   * @param id the new id
   */
   public void setId(String id) {
       this.id = id;
   }

   /**
   * Gets the name.
   *
   * @return the name
   */
   public String getName() {
       return name;
   }

   /**
   * Sets the name.
   *
   * @param name the new name
   */
   public void setName(String name) {
       this.name = name;
   }

   /**
   * Gets the age.
   *
   * @return the age
   */
   public int getAge() {
       return age;
   }

   /**
   * Sets the age.
   *
   * @param age the new age
   */
   public void setAge(int age) {
       this.age = age;
   }

   /*
   * (non-Javadoc)
   *
   * @see java.lang.Object#toString()
   */
   @Override
   public String toString() {
       return id + ", " + name + ", " + age + "Years";
   }

}

Please let me know if you have any doubt or modify the answer, Thanks :)