What would a Unified Modeling Language (UML) diagram of the program below look like? Source Code: package application; //abstract class "Shape" public abstract class Shape { //Declare two abstract methods publicabstractdouble surfaceArea(); //Calculate surface area of shape publicabstractdouble volume(); //Calculate volume of shape } package application;   //class named "Sphere" that extends the "Shape" class public class Sphere extends Shape { //Attribute radius privatedoubleradius; // Constructor to initialize the sphere with a given radius public Sphere(doubleradius) { this.radius = radius; }   @Override publicdouble surfaceArea() { return 4 * Math.PI * Math.pow(radius, 2); }   @Override publicdouble volume() { return (4 / 3.0) * Math.PI * Math.pow(radius, 3); }   @Override public String toString() { return"Sphere - Surface Area: " + surfaceArea() + ", Volume: " + volume(); } }

Portfolio Instructions: You are working for a financial advisor who creates portfolios of financial securities for his clients. A portfolio is a conglomeration of various financial assets, such as stocks and bonds, that together create a balanced collection of investments. When the financial advisor makes a purchase of securities on behalf of a client, a single transaction can include multiple shares of stock or multiple bonds. It is your job to create an object-oriented application that will allow the financial advisor to maintain the portfolios for his/her clients. You will need to create several classes to maintain this information: Security, Stock, Bond, Portfolio, and Date. The characteristics of stocks and bonds in a portfolio are shown below: Stocks:                                                                        Bonds: Purchase date (Date)                                                   Purchase date (Date) Purchase price (double)…

Objectives: Use Javadocs to document a class and methods Design and write a Java class Use fields (instance variables) Write multiple constructors Write accessor methods Write mutator methods Use the this keyword Use string concatenation Round floating point numbers (using Math.round()) Use a Scanner object Description ProduceItem class For this project, you get to design and write a ProduceItem class that stores a description, cost and weight as fields. Include both a constructor without any parameters and one with parameters for the description (String), cost (double) and weight (double) (in that order). For the constructor without parameters, set the description to an empty string, the cost to 0.0 and the weight to 0.0. Include appropriate accessor and mutator methods (and label them with comments including the terms "accessor" or "mutator"). So that the test cases compile, name the accessor methods: getDescription() getCost() getWeight() Additionally, name the mutator methods:…

Object oriented programming is where you focus more of the data and the properties that make that data up, along with the actions you can preform by that data, rather than focusing on doing some procedural thing. Group of answer choices True False

public class DesertEvent { private static int eventCount = 0; private String barCode; private String location; private String eventName; private String eventType; private int quantity; private int capacity; private int seatsTaken;   public DesertEvent(String eventName, String eventType) { this(eventName, eventType, 0); calcMaximumSeats(eventType); generateBarCode(); }   public DesertEvent(String eventName, String eventType, int capacity) { this.eventName = eventName; this.eventType = eventType; this.capacity = capacity; generateBarCode(); eventCount++; }   public String getBarCode() { return barCode; }   public String getLocation() { return location; }   public String getEventName() { return eventName; }   public String getEventType() { return eventType; }   public int getQuantity() { return quantity; }   public void setQuantity(int quantity) { this.quantity = quantity; }   public int getCapacity() { return capacity; }   public void setCapacity(int capacity) { this.capacity = capacity;…

class IndexItem { public: virtual int count() = 0; virtual void display()= 0; };class Book : public IndexItem { private: string title; string author; public: Book(string title, string author): title(title), author(author){} virtual int count(){ return 1; } virtual void display(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };class Category: public IndexItem { private: /* fill in the private member variables for the Category class below */ ? int count; public: Category(string name, string code): name(name), code(code){} /* Implement the count function below. Consider the use of the function as depicted in main() */ ? /* Implement the add function which fills the category with contents below. Consider the use of the function as depicted in main() */ ? virtualvoiddisplay(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };

public class Cylinder { public void smoothen() { } } } public abstract class Vessel implements Steerable { private Engine e; } System.out.println("Smoothening.."); public Engine getEngine() { return e; } public void setEngine (Engine e) { this.e = e; } public abstract void turnOn(); public class Engine { private Cylinder [] y; private int cyls = 1; static final int maxCylinders = 12; public void addCylinder (Cylinder y) { if (cyls

Finish the constructor for the KickBall class. public class Ball { public double diameter; public Ball(double diam) { diameter = diam; public class KickBall extends Ball private Color ballColor; public KickBall(double diam, Color ballColor) {

public abstract class Shape {      public Shape() { }      public abstract double area() ;      public String who() { return "Shape" ; } }     public class Circle extends Shape {      private int radius ;      public Circle( int r )      {          radius = r ;      }            @Override      public double area()      {         return Math.PI * radius * radius ;      } }     public class Square extends Shape {      private int _sideLength ;      public Square( int sideLength )      {          /* TODO question 45 */      }      @Override      public double area()      {           return _sideLength * _sideLength ;      } } Implement the Square constructor, and make sure it throws an exception when the input parameter is not a valid length.  The input parameter must be positive to be considered valid.