constructor constraint

   
 

using System;


public class Starter {
    public static void Main() {
        MyClass obj = new MyClass();
        obj.MethodA<XClass>();
    }
}

public class MyClass {
    public void MethodA<T>()
                 where T : XClass, new() {
        Console.WriteLine("MyClass.MethodA");
        T obj = new T();
        obj.MethodB();
    }
}

public class XClass {
    public void MethodB() {
        Console.WriteLine("XClass.MethodB");
    }
}