conn=Utils.getConn();

                ps=conn.prepareStatement("select Empname,birthday,salary from emp where id=?");

                ps.setObject(1, 1);

                rs=ps.executeQuery();

                while(rs.next()) {

                    row.put("Empname",rs.getObject(1) );

                    row.put("birthday", rs.getObject(2));

                    row.put("salary", rs.getObject(3));

                }

                for(String key:row.keySet()) {

                    System.out.print(row.get(key));

                }

conn=Utils.getConn();

            ps=conn.prepareStatement("select Empname,birthday,salary from emp where id>?");

            ps.setObject(1, 1);

            rs=ps.executeQuery();

            while(rs.next()) {

                Map<String,Object>row=new HashMap<>();

                row.put("Empname",rs.getObject(1) );

                row.put("birthday", rs.getObject(2));

                row.put("salary", rs.getObject(3));

                list.add(row);

            }

            for(Map<String,Object> map:list) {

                for(String key:map.keySet()) {

                    System.out.print(map.get(key));

                }

                System.out.println();

            }