What is the main difference between hash table and Dictionary?

Question Posted / guest

3 Answers
17889 Views
CSC, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What is the main difference between hash table and Dictionary?..

Answer / lakshmi maddala

Dictionary and Hash table are collection of data structure to hold data as key/value pairs.
Dictionary is generic type, hash table is not
We can't use dictionary with web services.
In .NET hash table is thread safe for use by multiple reader thread and a single writing thread, while in dictionary public static members are thread safe, but any instance members are not guaranteed to be thread safe.

Is This Answer Correct ?

15 Yes

2 No

What is the main difference between hash table and Dictionary?..

Answer / mehdi

Dictionary is a generic type, Hashtable is not. That means
you get type safety with Dictionary, because you can't
insert any random object into it, and you don't have to
cast the values you take out.

Is This Answer Correct ?

15 Yes

3 No

What is the main difference between hash table and Dictionary?..

Answer / sunil kumar

Dictionary is a generic type, Hashtable is not. Now what that
means.You get type safety with Dictionary, because you can't
insert any random object into it, and you don't have to cast
the values you take out.
And also generic collections are a lot faster as there's no
boxing/unboxing
Again Hashtable also have to box/unbox, which may have memory
consumption as well as performance penalties.

Is This Answer Correct ?

7 Yes

1 No

Post New Answer

More ASP.NET Interview Questions

how can we maintain security in soted procedure?

1 Answers

How to sign out from forms authentication?

0 Answers

how to create textboxes dynamically and insert textbox text into sql database

2 Answers AGiSAC,

What is shadowing?

2 Answers Syntax Softtech,

what are the server controls used in sitepath navigation?

1 Answers

What are the different modes for the sessionstates in the web.config file?

2 Answers

What is session in http request?

0 Answers

Input:http://www.allinterview.com/forms/questionform.php Output:http://www.allinterview.com/forms/questionform Write c# program to get the above desired output for the given Input.....

3 Answers Bally Technologies,

How do you implement Paging in .Net ?

1 Answers

Explain asp.net web forms.

0 Answers

Explain about Application and Session Events ?

0 Answers

What is the difference between Postback and Ispostback Property?

7 Answers Atrocity Apps Technologies, DC Infotech, HCL, Maples, Visual Soft,

For more ASP.NET Interview Questions Click Here