Given the classes below, what are the class types of instance sc? Checkall correct answers.-1 attachment-1-public class Canned Food (2-String barCode;3-double price;4- boolean isExpired() {return false;}5-16-public class Sardines ??????? CannedFood {7-int quantity;8-String computeSales() {}9-}10-public class SalesCalc ??????? Sardines (11-double discounted Amount(int d, double p) {}12-int updateQty(int qty){}13-)14-public class Mega ??????? SalesCalc15-Date expiryDate;16-double discounted Amount(int d, double p) (retum (d/100.0)*p;}17-int updateQty(int qty) {retum ++qty; }18-public static void main(String[] args) {19-Mega m = new Mega(); // instance m20-SalesCalc sc = new SalesCalc(); // instance scSardines yt = new Sardines(); // instance yt21-22-}23-}A. Canned FoodB. MegaC. SalesCalcD. SardinesE. None

OOP or Object-Oriented Programming is a software model that is designed around data or objects…

Answered: Given the classes below, what are the…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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4. Complete the following class to implement all the methods in the class: public class Person { String name; int birthYear; public Person () { name = "unknown"; birthYear = 2000; } public Person (String givenName, int yearofBirth) { //put your implementation for this method } public String getName () { //put your implementation for this method } public String changeName (String newName) { //put your implementation for this method } public int getAgeInYears (int currentYear) { //put your implementation for this method } public static void main (String[] args) { //Create a new Person object called personl; name is Ahmed, and his birth year 1995 // Create a new Person object called person2; name is Rami, and his birth year 2000 //print the age of the first person } }
Given the following class: public class Student { private long ID; private String name; } Write two constructor methods for the Student class, one without parameters and the other with.
Given the definition of the Person and Student classes below, public class Person public String m name; protected int m age; public Person(String name, int age) ( m name name: m age age: public int getAge (){ return m age; public class Student extends Person private double m gpa: public Student (String name, int age, double gpa) ( m goe gpa: ( u) zadns public veid decrEnentAge () m age--7 and the following statements: Person p- sew Person("Joe Dae", 25): Student s - new Stuadent (Jans Doe", 20, 3.45); Strine name; nt age indicate which of the following statements are lilegalL and which are legal. p.decrementAge0: age - D.getAge age = s getAget je name p.m name: 2 legal sdecrementAgel. gpa 5.m. gpa. 000000
Given the classes below, what are the class types of instance yt? Check all correct answers. -1 attachment- 1-public class Canned Food ( 2- String barCode; 3- double price; boolean isExpired() {return false;} 5-1 6-public class Sardines ??????? CannedFood { 7- int quantity; String computeSales() () 10-public class SalesCalc ??????? Sardines{ 11- double discounted Amount(int d, double p) () 12- int updateQty(int qty){} 13-} 14-public class Mega 7777777 SalesCalc 15- Date expiryDate; 16- double discounted Amount(int d, double p) {retum (d/100.0)*p;} 17- int updateQty(int qty) (retum ++qty;) 18- public static void main(String[] args) { 19- Mega m = new Mega(); // instance m 20- SalesCalc sc = new SalesCalc(); // instance sc Sardines yt = new Sardines(); // instance yt 21- 22- } 23-} A. Canned Food B. Mega C. SalesCalc D. Sardines 0 ☐ E. None
Given a class Circle as below: class Circle{ private int radius; double center_x; double center_y; Circle(){ .//some code here } Circle(double x, double y, int radius){ .//some code here } int getRadius(){ return radius; } }; Which of the following line is incorrect? Circle myCircle = new Circle(10,20, 5); I/~~~~~line A System.out.println("radius is: "+myCircle.radius); //--~~~line B Circle yourCircle = new Circle(); //-~~~~line C System.out.println("radius is: "+yourCircle.getRadius()); //---~~line D
Given the following super class and subclasses: public abstract class ThemePark String name: // customer's name String icNo: // customer's identification card number boolean member: // either member or nonmember of the // theme park //Methods: //default and normal constructor //accessors //toString0 public abstract double calCharges0: //calculate the charges public class WaterPark extends ThemePark String activity: // surfBeach,waterRide or other //Methods: //default and normal constructor //accessors /toString0 public double calCharges) . public class WildlifePark extends ThemePark String category: //child or adult I/Methods: //default and normal constructor //accessors /toString) public double calCharges) .) b) Write code fragments in the application / driver class that can perform the following tasks: (Assume all relevant methods have been defined in all classes involved) ii) Assuming data has been stored in this tp array, calculate and display the total charges of every WaterPark…
Incorrect Question 4 Consider public class Species { } // fields private String name; private int population; private double growthRate; // constructor public Species () { } name = "No Name Yet"; population = 0; growthRate = 33.3; Which of the following is the best setter method for the population instance variable? public boolean setPopulation(int newPopulation) { } if (newPopulation>= 0) { } population = newPopulation; return false; } return true; public public void setPopulation (int newPopulation) if (newPopulation>= 0) { } population newPopulation; public void setPopulation (int newPopulation) { population } = newPopulation;
3. Add a "DateOfBirth" property to the given Person class, which is of type "DateTime". 1 using System; 2 public class Person { public Person(string firstName, string lastName) { 3 4 FirstName = firstName; 5 LastName = lastName; } public string FirstName { get; set; } public string LastName { get; set; } public string GetFul1Name() { 7 8 10 return FirstName + + LastName; } 12 } 11 13 14 public class Program { public static void Main() { 15 16 } 18 } 17
The total cost of a group of items at a grocery store is based on the sum of the individual product prices and the tax (which is 5.75%). Products that are considered “necessities” are not taxed, whereas products that are considered “luxuries” are. The Product class is abstract, and it has a method called getTotalPrice. Your task is to create two subclasses of Product: NecessaryProduct and LuxuryProduct and implement the getTotalPrice method in each of these classes appropriately. Then modify the driver program to instantiate four products (two necessary and two luxury) and store them in the product array, print out each item in the array, and display the total cost of the items. You should not make any changes at all to Product.java, and you should only add to ShoppingTripStartingCode.java. Do not change any code that is already present Example(Cheese and bread are necessities and soda and candy are luxuries)Cheese…
Consider the following design for a Product class that keep track of product inventory: public class Product { public Product(String name, double qty){} public double getQty(){} public void reduce(double qty){} public void increase(double qty){} private String prodName; private double qtyOnHand; /* Data */ } Write the code for a main() method that models the following: A grocer starts the day with 50 Hard Rolls and 25 Soft Rolls. She sells 20 Hard Rolls and 10 Soft Rolls. The next morning about half of the Soft Rolls have turned into Hard Rolls. A shipment of 50 Soft Rolls comes in. She sells 30 Soft Rolls and 20 Hard Rolls. The storeowner wants a printout telling how many of each product she now has on hand.
A programmer has submitted the following class declaration for approval. This will be part of a program that tracks departments within a company and employees assigned to those departments. class Employee { public: Employee(); string getName(); long getldentifier(); Dollars getSalary(): Department worksln(): void assignTo (Department"); Employee getSupervisor() (return dept->getManager();) private: string name; long identifier; Department" dept; Dollars salary: Based upon this information, which of the C++ checklist items appear to be in violation? O Interface completeness O Meaningful names O Undocumented pre-conditions O All data members private O Every constructor initializes every data member O Appropriate treatment of default constructor O Appropriate treatment of the Big 3 O Appropriate relational operators O Appropriate output function D Const correctness
ASAP!!

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