Stream 람다 내부반복자 파이프라인 ( 중간처리 & 최종처리 ) 병렬처리 ( 포크조인 ) Creating from collection List list = new ArrayList(); Stream stream = list.stream(); from array String[] arr = {"soul", "music", "child"}; Stream stream = Arrays.stream(arr); from range IntStream stream = IntStream.of(1,2,3,4,5); IntStream stream = IntStream.rangeClosed(1, 100); from file // Files.lines() Path path Paths.get("../memo.txt"); Str..