what's wrong with this code

[joseph okon]

Why is this code:-

Vector v = new Vector();
try {
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT acc_id FROM mytable");

while(rs.next()) {
v.addElement(rs.getString("acc_id"));
}
rs.close();

giving me this warning:-
warning: [unchecked] unchecked call to add(E) as a member of the raw type java.util.Vector
v.addElement(rs.getString("acc_id"));

please can someone explain to me why and what to do next

joe

[Campbell Ritchie]

Look at the Generics part of the Java Tutorial. The last part where it says "unchecked warnings" will help you. Briefly, since Java5, Vector has been a generic class. Read the tutorial for more details.

And don't use Vector. Use ArrayList instead, and declare the type of the object as java.util.List.

[Jesper de Jong]

Please do not post the same question multiple times.