A non-generic class can be the base class of a generic derived class : Generic Class Hierarchy : Generics C# Source Code

    


using System;

class MyBaseClass {
  int num;

  public MyBaseClass(int i) {
    num = i;
  }

  public int getnum() {
    return num;
  }
}

class MyGenericClass<T> : MyBaseClass {
  T ob;

  public MyGenericClass(T o, int i) : base (i) {
    ob = o;
  }

  public T getob() {
    return ob;
  }
}

class HierDemo3 {
  public static void Main() {

    MyGenericClass<String> w = new MyGenericClass<String>("Hello", 7);

    Console.WriteLine(w.getob());
    Console.WriteLine(w.getnum());
  }
}