PolyMorphism, C# - rextester

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Employee
    {
        public string name;
        // Basepay is defined as protected, so that it may be 
        // accessed only by this class and derived classes.
        protected decimal basepay;

// Constructor to set the name and basepay values.
        public Employee(string name, decimal basepay)
        {
            this.name = name;
            this.basepay = basepay;
        }
        // Declared virtual so it can be overridden.
        public virtual decimal CalculatePay()
        {
            return basepay;
        }
    }

// Derive a new class from Employee.
    public class SalesEmployee : Employee
    {
        // New field that will affect the base pay.
        private decimal salesbonus;
        // The constructor calls the base-class version, and
        // initializes the salesbonus field.
        public SalesEmployee(string name, decimal basepay, decimal salesbonus) : base(name, basepay)
        {
            this.salesbonus = salesbonus;
        }

// Override the CalculatePay method 
        // to take bonus into account.
        public override decimal CalculatePay()
        {
            return basepay + salesbonus;
        }
    }
/*
    Output:
    Employee4 Alice earned: 1500
    Employee4 Bob earned: 1200
*/
    public class Program
    {
        public static void Main(string[] args)
        {
            //Create some new employees.
            SalesEmployee employee1 = new SalesEmployee("Alice",1000, 500);
            Employee employee2 = new Employee("Bob", 1200);            
            //Employee employee2 = new SalesEmployee("Alice", 1000, 500);
            Console.WriteLine("Employee4 " + employee1.name + " earned: " + employee1.CalculatePay());
            Console.WriteLine("Employee4 " + employee2.name + " earned: " + employee2.CalculatePay());
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0,22 sec, absolute running time: 0,19 sec, cpu time: 0,16 sec, average memory usage: 13 Mb, average nr of threads: 3, absolute service time: 0,43 sec