Datayanolja

데놀자 추첨코드.java

/*
사용된 java version
java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)
*/
public class Lottery {
	@Test
	public void Run() throws IOException {
		//추첨
		List<String> candidateList = Files.lines(Paths.get("이메일_목록")).collect(Collectors.toList());
		pickUP(candidateList, 추첨인원).stream().forEach(System.out::println);
	}

	public static List<String> pickUP(List<String> lst, int n) {
		List<String> shuffleList = new LinkedList<>(lst);
		Collections.shuffle(shuffleList);
		return shuffleList.subList(0, n);
	}
}