retrieve values of rows (from Postgresql) in a list in java -

i used hashmap handling resultset queried postgresql using code suggested rht

public list resultsettoarraylist(resultset rs) throws sqlexception{     resultsetmetadata md = rs.getmetadata();     int columns = md.getcolumncount();     arraylist list = new arraylist(50);      while (rs.next()){         hashmap row = new hashmap(columns);         for(int i=1; i<=columns; ++i){                        row.put(md.getcolumnname(i), rs.getobject(i));         }         list.add(row);     }      return list; } 

i did beacuse wanted shuffle collection afterwards.

now each row that:

  {owner=22172613@n07, count=2} 

i not know how can for/each loop retrieve each owner id , corresponding number !!

so have arraylist each element of hashmap contains in key column names of results , in values values of columns.

a loop following:

    //call method resultsettoarraylist here      list<map> list = (list<map>) resultsettoarraylist(rs);      //loop list     for(map r: list) {         system.out.println("row data: ");         final iterator columniterator = r.keyset().iterator();         while(columniterator.hasnext()) {             final object next = columniterator.next();             system.out.println("\tcolumn: " + next + " / value: " + r.get(next));         }     }