อยากสร้าง Arraylist 3 มิติครับ ในตัวอย่างเป็น Arraylist 1มิติ

public void arList(){
con = cSql.conSql();
        String sql="SELECT listtypeID As ID, listtypeName As Name, listtypeDetail As Detail FROM listtype W;
        ArrayList<String> arListtypeID = new ArrayList<String>();
        ArrayList<String> arListtypeName = new ArrayList<String>();
        ArrayList<String> arListtypeDtail = new ArrayList<String>();
        try {
            pst=con.prepareStatement(sql);
            rs=pst.executeQuery();
            while(rs.next()){
                arListtypeID.add(rs.getString("ID"));
                arListtypeName.add(rs.getString("Name"));
                arListtypeDtail.add(rs.getString("Detail"));
            }
            rs.close();
        } catch (SQLException ex) {
            System.out.println(ex.getMessage());
        }
}