the goal for this Employee class is to have no hard coded logic within the class

LAMBDAinsteadofDelegateUsage.cs

using System;
using System.Collections.Generic;

//the goal for this Employee class is to have no hard coded logic within the class. We can accomplish this using a delegate and a single LAMBDA expression on Line 42
public class Employee
{
    public int ID { get; set; }
    public string Name { get; set; }
    public int CurrentSalary { get; set; }
    public int YearsExperience { get; set; }

    //create 2 parameter method
    public static void PromoteEmployee(List<Employee> employeeList, IsPromotable isEligibleToPromote) //delegate passed into function as a parameter
    {
        foreach (Employee employee in employeeList)
        {
            if (isEligibleToPromote(employee)) //use the logic that the delegate points to (Promote function)
            {
                Console.WriteLine("{0} is eligible for a promotion", employee.Name);
            }
        }
    }
}

public delegate bool IsPromotable(Employee empl); 

public class Program
{
    public static void Main()
    {
        //instantiate a list of object of type Employee, call it empList
        List<Employee> empList = new List<Employee>();

        //add some objects to the list
        empList.Add(new Employee() { ID = 12376, Name = "Carl Brutananadilewski", CurrentSalary = 7000, YearsExperience = 15 });
        empList.Add(new Employee() { ID = 12376, Name = "Master Shake", CurrentSalary = 28000, YearsExperience = 3 });
        empList.Add(new Employee() { ID = 12376, Name = "Meatwad", CurrentSalary = 5000, YearsExperience = 11 });
        empList.Add(new Employee() { ID = 12376, Name = "Frylock", CurrentSalary = 302000, YearsExperience = 1 });

        //invoke the PromoteEmployee method
        Employee.PromoteEmployee(empList, emp => emp.YearsExperience >= 5); //method works on an Employee object and returns bool

        Console.ReadKey();
    }
}