Inheritance in C#

Classes can inherit from another class. This is accomplished by putting a colon after the class name when declaring the class, and naming the class to inherit from—the base class—after the colon

using System;


namespace Tutorial
{
    public class Parent
    {
        string parentString;
        public Parent() // Constructor
        {
            Console.WriteLine("Parent Constructor.");
        }
        public Parent(string myString) // Constructor takes "myString" as parameter.
        {
            parentString = myString; // Assigns parameter to parentString
            Console.WriteLine(parentString);
        }
        public void print()
        {
            Console.WriteLine("I'm a Parent Class.");
        }
    }
    public class Child : Parent // Inheritance
    {
        public Child()
            : base("From Derived") //Inherits and calls the base class constructor.
        {
            Console.WriteLine("Child Constructor.");
        }
        public void print()
        {
            base.print();
            Console.WriteLine("I'm a Child Class.");
        }
        public static void Main() //Static main method, init of application
        {
            Child child = new Child();
            child.print();
            ((Parent)child).print();
        }
    }
}

The new class—the derived class—then gains all the non-private data and behavior of the base class in addition to any other data or behaviors it defines for itself. The new class then has two effective types: the type of the new class and the type of the class it inherits.