using System;

​

public class Employee

{

    //1. [Code] (string) Create a public string field (NAME)

    public string NAME;

    //2. [Code] (double) Create a private field (_yearlysalary) and a public properties (YEARLYSALARY)

    //Rule: yearly salary should not be negative. If the value is negative, set default value as 36000

    private double _yearlysalary;

    public double YEARLYSALARY

    {

        get

        {

            return _yearlysalary;

        }

        set

        {

            if (value > 0)

            {

                _yearlysalary = value;

            }

            else{

                _yearlysalary = 36000;

            }

        }

    }

    //Constructor

    public Employee()

    {

    }

    //3. [Code] Create a function:CalculateSalary()

    //Get (monthly, quarterly, or yearly) salary

    public void CalculateSalary(string strType)

    {

        if(strType == "month")

        {

            double monthlyS = _yearlysalary / 12;

            Console.WriteLine("Your monthly salary is: " + monthlyS);

        }

        else if(strType == "quarter")

        {

            double quarterlyS = _yearlysalary / 4;

            Console.WriteLine("Your quarterly salary is: " + quarterlyS);

        }

        else if(strType == "year")

        {

            double yearlyS = _yearlysalary;

            Console.WriteLine("Your yearly Salary is: " + yearlyS);

        }

        else

        {

            Console.WriteLine("Please enter correct type");

        }

    }

    //Input: string strType

    //Output: return a double type 

    //if strType equals to "month", return monthly salary (monthly salary = yearly salary / 12)

    //if strType equals to "quarter", return quarterly salary (quarterly salary = yearly salary / 4)

    //if strType equals to "year", return yearly salary

​

    //4. [Code] Create a function: GetFirstThreeLetter()

    public void GetFirstThreeLetter(string NAME)

    {

        string first3 = NAME.Substring(0,3);

        Console.WriteLine(first3);

    }

    //Get first three letter from employee's name

    //Input: no

    //Output: return a string

    //Hint: use substring() & NAME variable

}

public class Program

{

    public static void Main()

    {

        //5. [Code] Create an Employee object

        //NAME = John; YEARLYSALARY = 75000

        Employee Emp1 = new Employee();

        Emp1.NAME = "John";

        Emp1.YEARLYSALARY = 75000;

        //6. [Code] Call object's function

        //Call GetFirstThreeLetter() function and print out the information.

        Emp1.GetFirstThreeLetter(Emp1.NAME);

        //Call CalculateSalary("month") function and print out the information.

        Emp1.CalculateSalary("month");

        //Call CalculateSalary("quarter") function and print out the information.

        Emp1.CalculateSalary("quarter");        

        //Call CalculateSalary("year") function and print out the information.

        Emp1.CalculateSalary("year");

    }

}