Part $1(20$ points$)$

Add the Employee class to the project as follows:

$($a$)$ Create $3$ instance variables and $3$ corresponding properties as follows. Each property will have

nothing more than simple get $/$ set accessors:

Instance variable name $($string$)$ and public property Name

Instance variable department $($string$)$ and public property Department

Instance variable salary $($decimal$)$ and public property Salary

$($b$)$ Create $2$ constructors

A default constructor that just has $\{\}$ as a method body.

public Emplovee$($string name, string department, decimal salary$)-$ that initializes

the $3$ properties.

$($c$)$ Create a method that returns a formatted string by inserting a tab character between each field.

The form below shows the output created by this method. Use the following method header

public virtual string getDisplayText$()//$ format salary as currency!

$($d$)$ Create an abstract method that returns bonus as follows:

public abstract decimal getBonus$()$;

Part $2(20$ points$)$

Using Employee as the base class, add a class ManagementEmp class that inherits from the Employee

class.

$($a$)$ It should use the base class $($Employee class$)$ constructors and other methods as much as

possible.

$($b$)$ Add a variable as follows:

Instance variable years $($decimal$)$ and public property Years

$\frac{\frac{?}{?}}{?}$ Years refers to the number of years of service for this employee

$($c$)$ It should have a constructor that takes four input parameters: name, department,

salary, years

$($d$)$ Add a getPowerValue method to compute a measure of the power and value of the

management employee. Use the following method header:

public decimal getPowervalue$()$

This method should return a number that is equal to ${1000}_{*}{*}_{?}$ years $+$ salary

$($e$)$ Write the getBonus$()$ method: Bonus must be computed as $10\%$ of the salary.

$($f$)$ Override the getDisplayText$()$ method to include the years. Must use the base class method.Part $3(20$ points$)$

Using Employee as the base class, add a class ClericalEmp class that inherits from the Employee class.

$($a$)$ It should use the base class $($Employee class$)$ constructors and other methods as much as

possible.

$($b$)$ Add a variable as follows:

Instance variable sickleave $($int$)$ and public property Sickleave

$//$ Sickleave refers to the amount of sick leave this employee has

$($c$)$ It should have a constructor that takes four input parameters: name, department,

salary, sickleave

$($d$)$ Add a getTotalSickLeaveValue method to compute the total value of the sick leave. Use the

following method header:

public decimal getTotalSickLeaveValue$()$

This method should return a number that is equal to salary $*$ sickleave $/2000$;

$($e$)$ Write the getBonus$()$ method: Bonus must be computed as $5\%$ of the salary.

$($f$)$ Override the getDisplayText$()$ method to include the sickleave. Must use the base class method.

Part $4(40$ points$)$

Create the following form that uses the Employee class as follows

The form will have an instance variable "employees" that is a List of Employees. The user

interface should be as follows:

Your code needs to add a management employee to the list when the user clicks "Add

Management Employee" button.

Your code needs to add a clerical employee to the list when the user clicks "Add Clerical

Employee" button.

When the user clicks the button, "Show Employee Information". Your code should display the

following in the list box:

Show each employee's details in the list box using the get display text method

The total salaries of all employees in the list box $($formatted as currency$).$

The total of Power Values of all Management Employees in the list box.

The average power value per management employee.

The total of Sick leave Values of all Clerical Employees in the list box $($formatted as

currency$).$

The average sick leave per clerical employee.

The average salary per management employee

The average salary per clerical employee

The average salary per employee

Add a label to the form that shows the total number of employees. Update the label with the

total number of employees in the employees list.

Use validation for input values and include try catch blocks.