C# Interview questions difference between type part 1

1. Difference between String and string?

2. Difference between const and readonly?

3. Difference between int.Parse() and Convert.ToInt32?

4. Difference between the 'ref' and 'out' keywords?

5. Difference between bool and Boolean types in C#?

6. Difference between Char.IsDigit() and Char.IsNumber() in C#?

7. Difference between is and as keyword?

8. Difference between SortedList and SortedDictionary?

9. Difference between IsNullOrEmpty and IsNullOrWhiteSpace in c#?

10. Difference between Dictionary and Hashtable?

11. Difference between dynamic(C# 4) and var?

12. Difference between throw and throw new Exception()?

13. Difference between “\n” and Environment.NewLine?

14. Difference between INT, INT16, INT32 and INT64?

15. Difference between “System.Object” and “object”?