當我處理每個國家時,如何只添加與該國家相匹配的國家/地區的語言?如何將項目添加到匹配的列表?
private List<String> readCountryLanguages(Statement sqlStatement, List<Country>countries) throws SQLException {
List<String> languages = new ArrayList<>();
for (Country country : countries) {
ResultSet resultSet = sqlStatement.executeQuery("SELECT language FROM COUNTRY_LANGUAGE");
while (resultSet.next()) {
String language = new String(resultSet.getString("Languages"));
Country obj = new Country(0, language, 0, 0);
obj.getId();
}
}
return languages;
}