I am trying to parameterize gmail login script, for which I am trying to fetch data from database(sql server), but when I run the code am getting the following error:

> 
> Exception in thread "main" java.sql.SQLException: No suitable driver
>  found for jdbc:sqlserver://localhost/hrm
> 
> 
> 

The connection string that I am passing is as follows:

```
Connection cn=DriverManager.getConnection("jdbc:sqlserver://localhost/hrm","sa","a1");

```

Please help.