java Ramda 리스트 컬랙션 데이터 예제

java Ramda 리스트 컬랙션 데이터 예제

List<GoodOrderInfoUseField> goodOrderInfoUseFieldList =
        goodOrderInfoType.getGoodOrderInfoUseFields();

List<GoodOrderInfoTypeCats> goodOrderInfoTypeCatsList =
        goodOrderInfoUseFieldList.stream()
                .map(goodOrderInfoUseField -> goodOrderInfoUseField
                        .getGoodOrderInfoTypeCats()).collect(Collectors.toList());

goodOrderInfoUseFieldList.stream()
        .map(goodOrderInfoUseField -> goodOrderInfoUseField.getGoodOrderInfoTypeCats())
        .forEach(x -> System.out.println(x));

Long count = goodOrderInfoUseFieldList.stream()
        .map(goodOrderInfoUseField -> goodOrderInfoUseField.getGoodOrderInfoTypeCats()
                .getIdx()).count();