Question

Using C#

Create an Employee class with five fields: first name, last name, workID, yearStartedWked, and initSalary. It includes constructor(s) and properties to initialize values for all fields.

Create an interface, SalaryCalculate, class that includes two functions: first,CalcYearWorked() function, it takes one parameter (currentyear) and calculates the number of year the worker has been working. The second function, CalcCurSalary() function that calculates the current year salary.

Create a Worker classes that is derived from Employee and SalaryCalculate class.

• In Worker class, it includes two field, nYearWked and curSalary, and constructor(s). It defines the CalcYearWorked() function using (current year – yearStartedWked) and save it in the nYearWked variable. It also defines the CalcCurSalary() function that calculates the current year salary by using initial salary with 3% yearly increment.

Create a Manager class that is derived from Worker class.

• In Manager class, it includes one field: yearPromo and constructor(s). Itincludes a CalcCurSalary function that calculate the current year salary by overriding the base class function using initial salary with 5% yearly increment plus 10% bonus. The manager’s salary calculates in two parts. It calculates as a worker before the year promoted and as a manager after the promotion.

Write an application that reads the workers and managers information from files (“worker.txt” and “manager.txt”) and then creates the dynamic arrays of objects. Prompt the user for current year and display the workers’ and managers’ current information in separate groups: first and last name, ID, the year he/she has been working, and current salary.

In the text file, The first number is the number of workers/managers in the file.

Txt files are aligned as followed

worker.txt

5
Hector
Alcoser
A001231
1999
24000
Anna
Alaniz
A001232
2001
34000
Lydia
Bean
A001233
2002
30000
Jorge
Botello
A001234
2005
40000
Pablo
Gonzalez
A001235
2007
35000

manager.txt

3
Sam
Reza
M000411
1995
51000
2005
Jose
Perez
M000412
1998
55000
2002
Rachel
Pena
M000413
2000
48000
2010

Answer 1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MyNamespace
{
    public class Employee
    {
        private string firstName;

        public string FirstName
        {
            get { return firstName; }
            set { firstName = value; }
        }
        private string lastName;

        public string LastName
        {
            get { return lastName; }
            set { lastName = value; }
        }
        private int wordId;

        public int WordId
        {
            get { return wordId; }
            set { wordId = value; }
        }
        private int yearStartedWked;

        public int YearStartedWked
        {
            get { return yearStartedWked; }
            set { yearStartedWked = value; }
        }
        private double initSalary;

        public double InitSalary
        {
            get { return initSalary; }
            set { initSalary = value; }
        }

        public Employee()
        {
            firstName = "";
            lastName = "";
            wordId = 0;
            yearStartedWked = 0;
            initSalary = 0;
        }

        public Employee(string fN, string lN, int id, int yearStarted, double salary)
        {
            firstName = fN;
            lastName = lN;
            wordId = id;
            yearStartedWked = yearStarted;
            initSalary = salary;
        }

    }
}

\color{blue}\underline{SalaryCalculate.cs:}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MyNamespace
{
    public interface SalaryCalculate
    {
        void CalcYearWorked(int currentYear);
        void CalcCurSalary(int currentYear);
    }
}

\color{blue}\underline{Worker.cs:}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MyNamespace
{
    public class Worker : Employee, SalaryCalculate
    {
        private int nYearWked;

        public int NYearWked
        {
            get { return nYearWked; }
            set { nYearWked = value; }
        }
        private double curSalary;

        public double CurSalary
        {
            get { return curSalary; }
            set { curSalary = value; }
        }

        public Worker(string fN, string lN, int id, int yearStarted, double salary) : base(fN, lN, id, yearStarted, salary)
        {
        
        }

        public void CalcYearWorked(int currentYear)
        {
            nYearWked = currentYear - YearStartedWked;
        }

        public void CalcCurSalary(int currentYear)
        {
            double salary = InitSalary;
            for (int i = YearStartedWked; i <= currentYear; ++i)
            {
                salary *= 1.03;
            }
            CurSalary = salary;
        }

    }
}

\color{blue}\underline{Manager.cs:}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MyNamespace
{
    public class Manager : Worker
    {
        private int yearPromo;

        public int YearPromo
        {
            get { return yearPromo; }
            set { yearPromo = value; }
        }

        public Manager(string fN, string lN, int id, int yearStarted, double salary, int yearPromo)
            : base(fN, lN, id, yearStarted, salary)
        {
            this.yearPromo = yearPromo;
        }

        public void CalcCurSalary(int currentYear)
        {
            double salary = InitSalary;
            for (int i = YearStartedWked; i <= currentYear; ++i)
            {
                if (i < yearPromo)
                    salary *= 1.03;
                else
                    salary *= 1.05;
            }
            CurSalary = salary * 1.2;   // 20% bonus
        }

    }
}

\color{blue}\underline{EmployeeMain.cs:}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace MyNamespace
{
    class EmployeeMain
    {
        public static void Main()
        {
            List<Worker> employees = new List<Worker>();
            using (StreamReader sr = new StreamReader(new FileStream("worker.txt", FileMode.Open)))
            {
                string line;
                while((line = sr.ReadLine()) != null)
                {
                    string[] words = line.Split(' ');
                    employees.Add(new Worker(words[0], words[1], Convert.ToInt32(words[2]), Convert.ToInt32(words[3]), Convert.ToDouble(words[4])));
                }
            }
            List<Manager> managers = new List<Manager>();
            using (StreamReader sr = new StreamReader(new FileStream("manager.txt", FileMode.Open)))
            {
                string line;
                while ((line = sr.ReadLine()) != null)
                {
                    string[] words = line.Split(' ');
                    managers.Add(new Manager(words[0], words[1], Convert.ToInt32(words[2]), Convert.ToInt32(words[3]), Convert.ToDouble(words[4]), Convert.ToInt32(words[5])));
                }
            }
            Console.Write("Enter current year: ");
            int year = Convert.ToInt32(Console.ReadLine());
            for (int i = 0; i < employees.Count; ++i)
            {
                employees[i].CalcYearWorked(year);
                employees[i].CalcCurSalary(year);
                Console.WriteLine("Worker: " + employees[i].LastName + ", " + employees[i].FirstName + "'s salary is: " + employees[i].CurSalary + " and worked a total of " + employees[i].NYearWked + " years.");
            }
            for (int i = 0; i < managers.Count; ++i)
            {
                managers[i].CalcYearWorked(year);
                managers[i].CalcCurSalary(year);
                Console.WriteLine("Manager: " + managers[i].LastName + ", " + managers[i].FirstName + "'s salary is: " + managers[i].CurSalary + " and worked a total of " + managers[i].NYearWked + " years.");
            }
        }
    }
}

\color{blue}\underline{worker.txt:}

cristiano ronaldo 7 2004 100000
lionel messi 10 2006 80000
gareth bale 11 2008 65000

\color{blue}\underline{manager.txt:}

arsene wenger 1 1994 25000 2000
jose morinho 2 2000 50000 2006

Output Screenshot:-

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