datatypes of columns fields in a table

hi, i'm interested in displaying the datatypes of column in  database. right now i'm able to display the columns for a table in a database. now i'm interested in displaying both the datatype and the name of column. any assistance will be appreciated.

import java.sql.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;


public class msaccess3
{
public static void main(String[] args)
{
int i;
Connection conn=null;
//register jdbc driver
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
                          conn=DriverManager.getConnection("jdbc:odbc:my_database","dba","sql");
DatabaseMetaData dbmd = conn.getMetaData();
ResultSet rs = dbmd.getColumns(null,null,"login",null);
System.out.println("the columns in the table are:");
while(rs.next()){
String column = rs.getString(4);
System.out.println(column);
}
conn.close();                              
}
catch(ClassNotFoundException e){
e.printStackTrace();
}
catch(SQLException e){
e.printStackTrace();
             
}
}
}