C# equivalent

[fuzzyrose]

hiiiiiii all
I need help to know what are equivalent libraries in c# for those in java-->
1)import java.sql.ResultSet;

2)import java.sql.Statement;

3)import java.util.Vector;

4)import java.util.Hashtable;

5)import javax.servlet.http.HttpSession;

6)import java.sql.SQLException;

7)import org.apache.velocity.Template;

8)import java.sql.Connection;

Thanks In advance :)

[Momerath]

1) System.Data.DataSet
2) System.Data.SqlClient.SqlCommand
3) System.Collections.Generic.List<T>
4) System.Collections.Hashtable
5) System.Net.HttpWebRequest (or one of the other Http classes)
6) System.Data.SqlClient.SqlException
7) No idea what org.apache.velocity.Template does for you.
8) System.Data.SqlClient.SqlConnection

[fuzzyrose]

thanks a lot ^_^