Please I submit this assignment before but I didn't get the right answer, I need help.

Create an Employee class that includes three private data members firstName (type string), lastName (type string), and monthlySalary (type int ).

It also includes several public member functions.

1. A constructor initializes the three data members.

2. A setFirstName function accepts a string parameter and does not return any data. It sets the firstName.

3. A getFirstName function does not accept any parameter and returns a string. It returns the firstName.

4. A setLastName function accepts a string parameter and does not return any data. It sets the lastName.

5. A getLastName function does not accept any parameter and returns a string. It returns the lastName.

6. A setMonthlySalary function accepts an integer parameter and does not return any data. It sets the monthlySalary. If the monthly salary is less than or equal zero, set it to 1000 and it displays the employees first name, last name and the inputted salary with a statement **==The salary is set to $1000.

7. A getMonthlySalary function does not accept any parameter and returns an integer. It returns the monthlySalary.

8. An increaseMonthlySalary function accepts an integer parameter and does not return any data. It increases the monthlySalary by integer%. The increase could be positive or negative. When this function is called the salary adjusted employees name and salary information will be displayed (please see the following image for details).