Question

I want to create a list with my database field values.
There are 2 columns, name and surname.
I want to create a list that stores all names in name column in a field and then add to my DTO.

Is this possible?

Answer 1

Steps you can follow: –

• First you need to have a List<String> that will store all your names. Declare it like this: –

  List<String> nameList = new ArrayList<String>();
  

• Now, you have all the records fetched and stored in ResultSet. So I assume that you can iterate over ResultSet and get each values from it. You need to use ResultSet#getString to fetch the name.

• Now, each time you fetch one record, get the name field and add it to your list.

  while(resultSet.next()) {
      nameList.add(resultSet.getString("name"));
  }
  

• Now, since you haven’t given enough information about your DTO, so that part you need to find out, how to add this ArrayList to your DTO.

• The above list only contains name and not surname as you wanted only name. But if you want both, you need to create a custom DTO (FullName), that
  contains name and surname as fields. And instantiate it from
  every ResultSet and add it to the List<FullName>