Step3: 보너스 볼 추가 #996
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Step3: 보너스 볼 추가 #996
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MyStoryG
requested changes
Dec 2, 2023
| @JvmInline | ||
| value class LottoAnswer( | ||
| private val answer: List<Int> | ||
| data class LottoAnswer( |
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LottoAnswer라고 하니 어떤 역할인지 떠오르지 않았습니다.
저희는 이 도메인에 대해 지속적으로 고민하니 사용자에게 입력받은 값이라는 것을 압니다.
하지만 당첨번호를 의미하는 말로 바꾸면 좀 더 명확할 것 같다는 생각이 드네요.
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| private val answer: List<Int>, | ||
| private val bonusNumber: Int |
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입력받은 값(당첨번호)은 이렇게 별도로 관리할 필요는 없을 것 같습니다.
현재 Lotto 클래스가 대체할 수 있지 않을까요?
당첨번호나 로또나 똑같이 6개의 번호를 가지는 동일한 형태니까요.
현재 객체들의 역할에 대해 조금 더 고민하시면서 변경해 보면 좋을 것 같아요.
| .forEach { println(it) } | ||
| println("총 수익률은 ${result.earningRate}입니다.") | ||
| } | ||
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| private fun outputLottoResultSeperate(matchCount: MatchCount, amount: Int, earnResult: Map<MatchCount, Int>): String { |
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| val earningStrategy = mapOf( | ||
| MatchCount.THREE to 5000, | ||
| MatchCount.FOUR to 50000, | ||
| MatchCount.FIVE to 1500000, | ||
| MatchCount.FIVE_WITH_BONUS to 30000000, | ||
| MatchCount.SIX to 2000000000 | ||
| ) |
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이렇게 매핑을 하기보다 힌트에도 있듯이 Enum으로 관리해 보면 어떨까요?
그리고 지금처럼 컨트롤러에 이 로직이 있는 것이 적합한지도 고민해 보시면 좋을 것 같아요.
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| object OutputView { | ||
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| fun outputBuyResult(lottoCount: Int, lotteries: List<Lotto>) { | ||
| println("${lottoCount}개를 구매했습니다.") | ||
| lotteries.forEach { | ||
| println(it.numbers) | ||
| println(it.numbers.sorted()) |
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step3도 잘 부탁드립니다
고민사항
기존에는 LottoAnswer가 일급 컬렉션 이였는데 bonusNumber가 추가되게 되어서 일급컬렉션에서 벗어나게 되었는데 별도의 일급컬렉션을 만들어야 할까요?