title: What is the use of private constructor in abstract class in c#?
body: <p>I face the below question in the interview.</p>
  
  <blockquote>
    <p>Q1.Can we have a private constructor in the abstract class?</p>
  </blockquote>
  
  <p><strong>Answer-</strong> Yes, I gave an answer we can have then he again ask why and what is the use of the private constructor.
  I'm not able to answer to this cross-question. Can anybody explain this? with practically in c# will great help.</p>