A nongeneric class can be the base class of a generic derived class : Generic Hiearchy « Generic « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Generic
3. Generic Hiearchy

using System; 
 
class NonGen { 
  int num; 
 
  public NonGen(int i) { 
    num = i; 
  } 
 
  public int getnum() { 
    return num; 
  } 
} 
 
class Gen<T> : NonGen {  
  T ob; 
    
  public Gen(T o, int i) : base (i) {  
    ob = o;  
  }  
  
  public T getob() {  
    return ob;  
  }  
}  
  
class MainClass {  
  public static void Main() {  
    Gen<String> w = new Gen<String>("Hello", 4); 
    
    Console.Write(w.getob() + " "); 
    Console.WriteLine(w.getnum()); 
  }  
}

Hello 4