Top Questions

1. What is the difference between lock and Mutex?
   157 votes

   8 answers
2. Is String a primitive type?
   78 votes

   10 answers
3. How the StringBuilder class is implemented? Does it internally create new string objects each time we append?
   53 votes

   6 answers
4. In .NET can a class have virtual constructor?
   23 votes

   8 answers
5. Difference between Primary Key, Unique Key and candidate key
   17 votes

   7 answers