[Java] forEach

 

// 맵 선언 
Map<String, Object> roomList = new HashMap<String, Object>();


// 맵(roomList) 출력 형태 : Key, Value
// 안쪽에서 조건 값 줄 수 있음
roomList.forEach((key, value) -> {
    System.out.println("Key : " + key + " Value : " + value);
});

 

private static void roomSearuch(ArrayList<Object> roomList) {
		Room tempRoom = new Room();
		for (Object roomFor : roomList) {
			tempRoom = (Room) roomFor; // 임시 템프 객체에 룸리스트에서 빼온 객체를 담는다

			if (tempRoom.isReserVation()) {
				if (tempRoom.getRoomNum() % 10 == 0) {
					System.out.println();
					System.out.println();
				}
				System.out.print("[" + tempRoom.getRoomNum() + "]" + "번 가능 :");
			}
		}

	}

}

 

참고자료
https://hianna.tistory.com/573 (Map)
https://byungmin.tistory.com/12 (ArrayList)