Vector does not retain values in hashmap

Question

There should be 200 different values in Vector Group_Privs, but all the values is the last value retrieved. Help!
Map map = new HashMap();
Vector Group_Privs = new Vector();
Database database = new Database();
ResultSet result = null;
String connection = Connection;
try
Connection con = database.getDesiredConnection(Connection);
PreparedStatement ps = null;
try
ps = con.prepareStatement("select GROUP_ID"
+" from group_table ");
result = ps.executeQuery();
int i=0;
while (result.next())
map.put ("GROUP_ID",(String)result.getString(1));
Group_Privs.add(map);
result.close();

Answer 1

import java.util.*;
public class Example {
    public static void main(String[] args) {
        List<Map<String, String>> list = new ArrayList<Map<String, String>>();
        addValues(list);
        retrieveValues(list);
    static void addValues(List<Map<String, String>> list) {
        for(int i=0; i<4; ++i) {
            Map<String, String> map = new HashMap<String, String>();
            for(int j=0; j<=i; ++j) {
                String s = String.valueOf(j);
                map.put(s, s);
            list.add(map);
    static void retrieveValues(List<Map<String, String>> list) {
        for(Map<String, String> map : list) {
            System.out.format("%nmap of size %d: %n", map.size());
            for(Map.Entry<String, String> e : map.entrySet()) {
                System.out.format("%s |-> %s%n", e.getKey(), e.getValue());
}[http://java.sun.com/docs/books/tutorial/collections/index.html]