java.sql.SQLException: Illegal operation on empty result set. when authenticating

Question

What I\'m trying to do is:

1. Accept username(uname) and password(passw) as an input from the user.

2. Using ResultSet, retrieve the

Answer 1

You are supposed to use the result of rs.next() :

            if (rs.next()) {
                n=rs.getString("id");
                m=rs.getString("pass");
            }

If rs.next() returns false, this means the query returned no rows.