Inheritance

 1.Simple Inheritance

 class baseClass
    {
        public baseClass()
        {
            Console.WriteLine("Base Class Constructor Called");
        }
        public void print()
        {
            Console.WriteLine("Base Class Print Method Called");
        }
    }
    class derivedClass:baseClass
    {
        public derivedClass()
        {
            Console.WriteLine("Derived Class Constructor Called");
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            derivedClass obj = new derivedClass();
            obj.print();
            Console.ReadKey();
        }
    }
   
    2.Use of base and new keywords in Inheritance
   
     class Program
    {
        class baseClass
        {
            public baseClass()
            {
                Console.WriteLine("Base Class Constructor Called");
            }
            public baseClass(String newString)
            {
                Console.WriteLine(newString);
            }
            public void Print()
            {
                Console.WriteLine("Base Class Print Method Called");
            }
        }
        class derivedClass:baseClass
        {
            public derivedClass():base("From Child")
            {
                Console.WriteLine("Child Constructor Called");
            }
            public new void Print()
            {
                base.Print();
                Console.WriteLine("Child Class Print Method Called");
            }

        }
        static void Main(string[] args)
        {
            derivedClass obj = new derivedClass();
            obj.Print();
            ((baseClass)obj).Print();
            Console.ReadKey();
        }
    }
   
    keyword base call the base class constructor with the matching parameter list
    Using the base keyword, you can access any of a base class public or protected class members
    Another way to access base class members is through an explicit cast
    Notice the new modifier on the Child class print() method. This enables this method to hide the Parent class print() method and explicitly states your intention that you don't want polymorphism to occur.