4. Inheritance, C#

4. Inheritance

//4. Inheritance

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

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //Inheritance is defining new types based on existing ones
            //New type is also the type it has inherited from
            var apple = new Apple();
            apple.EatMe();
            Console.WriteLine(apple.GetMyName());
            Console.WriteLine((apple as Fruit).GetMyName());
            
            Console.WriteLine(apple is Fruit);            
        }
    }
    
    public class Fruit
    {
        public void EatMe()
        {
            Console.WriteLine("Eating...");
        }
        public virtual string GetMyName()
        {
            return "Some fruit";
        }
    }
    public class Apple: Fruit //Inherit from Fruit. Now Apple is a Fruit too.
    {
        public override string GetMyName()
        {
            return "Apple";
        }
    }
}


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