In Mammal, if the 4th line: super (age); is replaced with the line: this.age = age;then the result would be:The age is set only for Mammal, not for AnimalThe will not be set.The class Mammal won't compileThe class Animal won't compileage public class Animal{public static int population;private int age;}public Animal (int age) {this.age = age;population++;}+ msg);public void say (String msg) {System.out.print("Saying: "System.out.print(" for ");System.out.print(getHuman Years());System.out.println(" years.");}public int getHuman Years() {return age;}public class Mammal extends Animal{private String species;public Mammal(String species, int age) {super (age);this. species species;}}}=public int getHuman Years() {if (species.equals("dog"))1elsereturn super.getHumanYears() * 7;return super.getHumanYears();€

Inheritance in Java is a concept that acquires the properties from one class to other classes. It…

In Mammal, if the 4th line: super (age); is repla then the result would be: The age is set only for Mammal, not for Ani The age will not be set. The class Mammal won't compile The class Animal won't compile

In Mammal, if the 4th line: super (age); is repla then the result would be: The age is set only for Mammal, not for Ani The age will not be set. The class Mammal won't compile The class Animal won't compile

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

create a uml class diagram on this code: from abc import ABC, abstractmethod class GreyAnatomy(ABC):@abstractmethoddef Tvshow(self):pass class Grey(GreyAnatomy):def Tvshow(self):print("I am Derek") class Rank(Grey):def Tvshow(self):print("I am an attending") class Specialty(Rank):def Tvshow(self):print("I am an neurosurgeon doctor") G = Grey()G.Tvshow() R = Rank()R.Tvshow() S = Specialty()S.Tvshow()
Write a "proper" Polygon class, using "proper" class design. It needs to have: 1) The number of sides it has (an int) and it's x and y location (both floats) as private member variables. 2) Accessors and mutators for the member variables. (AKA getters/setters.) 3) Constructors to set the member variables when the class is initialized
Find the error in the following code
PYTHON SHORT CODE # Define classes based on given instance outputss_1 = Student_No_Property(17400005001, "Ata")s_2 = Student_Property_Decorator(17400005001, "Ata")s_3 = Student_Private(17400005001, "Ata")s_4 = Student_Private_Property(17400005001, "Ata")print(s_1.id, s_1.name) # OUTPUT: 17400005001 Ataprint(s_2.student_id, s_2.name) # OUTPUT: 17400005001 Ataprint(s_3.get_id()) # OUTPUT: 17400005001print(s_4.id, s_4.name) # OUTPUT: 17400005001 Atas_4.id = 11111111111print(s_4.id) # OUTPUT: 11111111111
SOLVE IN C#
In a particular factory, a team leader is an hourly paid productionworker that leads a small team. In addition to hourly pay, team leaders earn a fixed monthly bonus. Team leaders are required to attend a minimum number of hours of training per year. Design a TeamLeader class that is derived from the ProductionWorker class you created in Programming Problem 1. The TeamLeader class should have properties for the monthly bonus amount, the required number of training hours, and the number of training hours that the team leader has attended. Demonstrate the class in an application.
Conver the class To UML diagram class Clint { private String accNumber; private String holderName; private long currBalance; public Clint() { currBalance = 0; } public Clint(String acc, String name, long bal) { accNumber = acc; holderName = name; currBalance = bal; } Scanner sc = new Scanner(System.in); // deposit money into the bank account by given amount amt public void deposit(long amt) { currBalance += amt; } // if amount is not given ask the user for the amount public void deposit() { System.out.print("Enter Amount(to deposit): $"); long amt = sc.nextLong(); currBalance += amt; } // withdraw money from the bank account public void withdraw(long amt) { if (currBalance >= amt) { currBalance -= amt; } else { System.out.println("Insufficient funds!"); } } // if amt is not given ask the user for the amount public…
An organization has two types of employees: regular and adhoc. Regular employees get a salary which is basic + DA + HRA where DA is 10% of basic and HRA is 30% of basic. Adhoc employees are daily wagers who get a salary which is equal to Number * Wage ) Define the classes shown in the following class hierarchy diagram: Employee name eno salary ) Regular Adhoc wage mber days (int n) salary () Basic salary () (ii) Define the constructors. When a regular employee is created, parameter. basic must be a parameter When adhoc employee is created wage must be a parameter. (ii) Define the destructors. (iv) Define the member functions for each class. The member function days ( ) updates number of the Adhoc employee. (v) Write a test program to test the classes.
You have to implement program that compares graduate students based on their ranks. The design of the program is given in the following UML diagram: • Student class: Base class that GradStudent extends. • GradStudent class: The objects from this class will be used for comparisons. • Rankable interface: Defines the implementation needed for comparison. GradStudent implements this interface. • Test class will be used to get student information from the user and demonstrate the comparison of students.
Computer Science The console software for a game needs to be created with an MVC design pattern where game engine is the controller (GameController), the scenes are the views (GameView), and game & gamer info are the models (GameModel). Also, we need the controller, which is the game engine to be built with Singleton design pattern. So, the console software here adopts two co-existing design patterns. You will have to implement the controller class and the driver class. Follow the MVC design pattern implementation shown in the example in Lecture 14 for the Student, its controller, and the corresponding view. Use provided GameView class as the view and the GameModel class as the model. Provide answers to the following questions based on this case study: a) implement GameController Class as Singleton and as the controller for MVC in Java. b) Implement the Driver class. Also add the static method “getFromDB” (provided below) in the Driver class as the mock connection with the…
Design a class that implements the basic properties of a die. Consider the definition of the following class die.(Beginner) class die { public: die(); //Default constructor //Sets the default number rolled by a die to 1 void roll(); //Function to roll a die. //This function uses a random number generator to randomly //generate a number between 1 and 6, and stores the number //in the instance variable num. int getNum() const; //Function to return the number on the top face of the die. //Returns the value of the instance variable num. private: int num; }; a) Write the definitions of the functions to implement the operations for the class die. b) Write a program that uses the class die to roll 10 dice. (Use an array of size 10 to implement 10 dice.) The program prompts the user to enter the desired sum and the number of times the dice are to be rolled. The program outputs the number of times the desired sum was rolled. Test run your program to roll the 10 dice 10000 times with the desired…
The Point2D should store an x and y coordinate pair, and will be used to build a new class via class composition. A Point2D has a x and a y, while a LineSegment has a start point and an end point (both of which are represented as Point2Ds). class Invariants The start and end points of a line segment should never be null Initialize these to the origin instead. Data A LineSegment has a start point This is a Point2D object All data will be private A LineSegment also has an end point. Also a Point2D object Methods Create getters and setters for your start and end points public Point2D getStartPoint() { public void setStartPoint(Point2D start) { Create a toString() function to build a string composed of the startPoint’s toString() and endPoint’s toString() Should look like “Line start(0,0) and end(1,1)” Create an equals method that determines if two LineSegments are equal public boolean equals(Object other) { if(other == null || !(other instanceof LineSegment)) return…