Date -day: int -month: int -year: int +Date() +Date(int, int, int) +Date(Date) +getDay(): int +set Day (int): void +getMonth(): int +setMonth(int): void +getYear(): int +set Year(int): void +show(): void Employee #employeeId: int #dateEmployed: Date + Employee() +Employee(int, Date) +Employee (Employee) +get EmployeeId(): int +set EmployeeId(int): void +getDate Employed(): Date +setDateEmployed (Date): void +show(): void ContractWorker -durationOfContract: int +ContractWorker() +ContractWorker (int, Date, int) +ContractWorker (ContractWorker) +get DurationOfContract(): int +set DurationOfContract (int): void +show(): void Manager -department: string +Manager() +Manager(int, Date, string) +Manager (Manager) +get Department (): string +setDepartment (string): void +show(): void Using the UML Diagram provided, assuming that all classes have been implemented, write code snippets in C++ or Java to demonstrate sub-type polymorphism using only the classes from the diagram.

Date -day: int -month: int -year: int +Date() +Date(int, int, int) +Date(Date) +getDay(): int +set Day (int): void +getMonth(): int +setMonth(int): void +getYear(): int +set Year(int): void +show(): void Employee #employeeId: int #dateEmployed: Date + Employee() +Employee(int, Date) +Employee (Employee) +get EmployeeId(): int +set EmployeeId(int): void +getDate Employed(): Date +setDateEmployed (Date): void +show(): void ContractWorker -durationOfContract: int +ContractWorker() +ContractWorker (int, Date, int) +ContractWorker (ContractWorker) +get DurationOfContract(): int +set DurationOfContract (int): void +show(): void Manager -department: string +Manager() +Manager(int, Date, string) +Manager (Manager) +get Department (): string +setDepartment (string): void +show(): void Using the UML Diagram provided, assuming that all classes have been implemented, write code snippets in C++ or Java to demonstrate sub-type polymorphism using only the classes from the diagram.

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

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#include int days_in_month(int month,int is_leap){ int res=-1; switch(month){ case 1: res=31;break; case 2: if(is_leap) res=29; else res=28;break; case 3: res=31;break; case 4: res=30;break; case 5: res=31;break; case 6: res=30;break; case 7: res=31;break; case 8: res=31;break; case 9: res=30;break; case 10: res=31;break; case 11: res=30;break; case 12: res=31;break; } return res; } int main(){ int m,l; printf("Enter month: "); scanf("%d",&m); printf("Enter 1 for leap year 0 for non leap: "); scanf("%d",&l); int days=days_in_month(m,l); printf("Days %d",days); } Write in c
Question 6 Consider: class Bike { } private String color; public Bike() { } public Bike(String newColor) { color = newColor; } public Bike (Bike bike) { color = } bike.color; public String getColor() { } } return color; public void setColor(String newColor) { color = newColor; Bike bike1= new Bike(); = Bike bike2 new Bike("blue"); Bike bike3 = new Bike(bike2); bike2.setColor("green"); Bike bike4 = new Bike(bike2); Which of the following are correct? bike4.getColor() returns null bike4.getColor() return "blue" bike3.getColor() return "green" bike2.getColor() returns "blue" bike4.getColor() return "green" bike1.getColor() returns bike3.getColor() return null bike3.getColor() returns "blue" bike2.getColor() returns "green" bike1.getColor() returns null
arrow_back Starting Out With Visual C# (5th Edition) 5th Edition Chapter 11, Problem 1PP arrow_back_ios PREVIOUS NEXT arrow_forward_ios Question share_out_linedSHARE SOLUTION Chapter 11, Problem 1PP Program Plan Intro Employee and ProductionWorker Classes Program plan: Design the form: Place a three text boxes control on the form, and change its name and properties to get the employee name, number, and hourly pay rate from the user. Place a four label boxes control on the form, and change its name and properties. Place a two radio buttons control on the form, and change its name and properties. Place a one group box control on the form, and change its name and properties. Place a command button on the form, and change its name and properties to retrieve the object properties and then display the values into label box. In code window, write the code: Program.cs: Include the required libraries. Define the namespace “Program11_1”. Define a class “Program”. Define a constructor for the…
Calendaritem -month int -day:int Calendaritem(int, int) move(int, int):void +tostring()intring Meeting Birthday -time: String -nameistring +birth year int -participants: ArrayList +Meeting(int, int, String) +addParticipant(String) :void +move(int, int, String):void +Birthday (String, int, int) +toString(): String Based on the UML diagrams shown above, write complete Java class for Birthday, as follows: C) Birthday 1. Define the class and its attributes. Note that Birthday is a subclass of Calendaritem 2. Implement the constructor, which takes 3 parameters for the name, day, and month, and set these values correctly 3. Implement the toString() method to return a string in the following format: name's birthday is on day/month For the toolbar, press ALT F10 (PC) or ALT+FN+F10 (Mac)
int main(){ long long int total; long long int init; scanf("%lld %lld", &total, &init); getchar(); long long int max = init; long long int min = init; int i; for (i = 0; i < total; i++) { char op1 = '0'; char op2 = '0'; long long int num1 = 0; long long int num2 = 0; scanf("%c %lld %c %lld", &op1, &num1, &op2, &num2); getchar(); long long int maxr = max; long long int minr = min; if (op1 == '+') { long long int sum = max + num1; maxr = sum; minr = sum; long long int res = min + num1; if (res > maxr) { max = res; } if (res < minr) { minr = res; } } else { long long int sum = max * num1; maxr = sum; minr = sum; long long int res = min * num1;…
class smart { public: void print() const; void set(int, int); int sum(); smart(); smart(int, int); private: int x; int y; int secret(); }; class superSmart: public smart { public: void print() const; void set(int, int, int); int manipulate(); superSmart(); superSmart(int, int, int); private: int z; }; Now answer the following questions: a. Which private members, if any, of smart are public members of superSmart? b. Which members, functions, and/or data of the class smart are directly accessible in class superSmart?
functions return the value of a data member. A. Accessor OB. Member C. Mutator OD. Utility
case 3: res=31;break; case 4: res=30;break; case 5: res=31;break; #include int days_in_month(int month,int is_leap){ int res=-1; switch(month) { case 1: res=31;break; case 2: if(is_leap) res=29; else res=28;break; case 6: res=30;break; case 7: res=31;break; case case 11: res=30;break; case 12: res=31;break; } return res;} int main() { int m,l; printf("Enter month: "); scanf("%d",&m); printf("Enter 1 for leap year 0 for non leap: "); scanf("%d",&l); int days-days_in_month(m,1); printf("Days %d",days);} Write in c 8: res=31;break; case 9: res=30;break; case 10: res=31;break;
case 3: res=31;break; case 4: res=30;break; case 5: res=31;break; case 6: res=30;break; case 7: res=31;break; case #include int days_in_month(int month,int is_leap){ int res=-1; switch(month) { case 1: res-31;break; case 2: if(is_leap) res=29; else res=28;break; 8: res=31;break; case 9: res=30;break; case 10: res=31;break; int m,1; printf("Enter month: "); scanf("%d",&m); printf("Enter printf("Days %d",days);} Write in c case 11: res=30;break; case 12: res=31;break; } return res;} int main() { 1 for leap year 0 for non leap: "); scanf("%d",&l); int days-days_in_month(m,1);
public class Car { private int modelYear; // TODO: Declare purchasePrice field (int) private int currentValue; public void setModelYear(int userYear){ modelYear = userYear; } public int getModelYear() { return modelYear; } // TODO: Define setPurchasePrice() method // TODO: Define getPurchasePrice() method public void calcCurrentValue(int currentYear) { double depreciationRate = 0.15; int carAge = currentYear - modelYear; // Car depreciation formula currentValue = (int) Math.round(purchasePrice * Math.pow((1 - depreciationRate), carAge)); } // TODO: Define printInfo() method to output modelYear, purchasePrice, and currentValue } import java.util.Scanner;import java.lang.Math; public class CarValue { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); Car myCar = new Car(); int userYear = scnr.nextInt(); int userPrice = scnr.nextInt(); int…
Object adapters and class adapters each provide a unique function. These concepts are also significant due to the significance that you attach to them.
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 */ } };