Question

I’m sorry this may seem a bit basic, but I can’t get my head into it today. I have this Vector and I want to fill it with the Results from a ResultSet which looks like:

column1, column2, column3, column4, column5

Vector<Vector<String>> myVector = new Vector<Vector<String>>();

           while (rs.next()) {
                            String column1 = rs.getString(1);
                            String column2 = rs.getString(2);
                            String column3 = rs.getString(3);
                            String column4 = rs.getString(4);
                            String column5 = rs.getString(5);
                            myVector.put(column1, column2, column3, column4, column5);

Is this the correct way to do it?

TIA

Answer 1

http://docs.oracle.com/javase/7/docs/api/java/util/Vector.html

Vector implements the List interface, so it has add(), not put(). AFAIK there are no collections in Java that support inserting elements with varargs, so you have to call it once per string:

while (rs.next()) {
    Vector v = new Vector<>();
    v.add(rs.getString(1));
    v.add(rs.getString(2));
    v.add(rs.getString(3));
    v.add(rs.getString(4));
    v.add(rs.getString(5));
    myVector.add(v);
}

It would be better to use ArrayList instead of Vector though, unless you need synchronization (and even then, there are better ways to do it).

Edit: the best (IMO) way to do it would be:

List<String[]> l = new ArrayList<>();

while (rs.next()) l.add(new String[] {
        rs.getString(1),
        rs.getString(2),
        rs.getString(3),
        rs.getString(4),
        rs.getString(5)
    });