현대캐피탈 유재원 코틀린 연습

settings.gradle

@@ -2,3 +2,5 @@ plugins {
     id 'org.gradle.toolchains.foojay-resolver-convention' version '0.7.0'
 }
 rootProject.name = 'java-baseball'
+
+include 'src:main:Kotlin'

src/main/Kotlin/build.gradle.kts

@@ -0,0 +1,21 @@
+plugins {
+    kotlin("jvm") version "2.1.20"
+}
+
+group = "camp.nextstep.edu"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation(kotlin("test"))
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+kotlin {
+    jvmToolchain(17)
+}

src/main/Kotlin/build/kotlin/compileKotlin/cacheable/caches-jvm/lookups/counters.tab

@@ -0,0 +1,2 @@
+2
+0

src/main/Kotlin/src/main/kotlin/Main.kt

@@ -0,0 +1,16 @@
+package camp.nextstep.edu
+
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+fun main() {
+    val name = "Kotlin"
+    //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
+    // to see how IntelliJ IDEA suggests fixing it.
+    println("Hello, " + name + "!")
+
+    for (i in 1..5) {
+        //TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
+        // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
+        println("i = $i")
+    }
+}

src/main/Kotlin/src/main/kotlin/racinggame/Application.kt

@@ -0,0 +1,95 @@
+package racinggame
+
+fun main() {
+    Application().start()
+}
+
+class Application {
+    fun start() {
+        val carNames = InputView.readCarNames()
+        val tryCount = InputView.readTryCount()
+
+        val cars = Cars(carNames.map { Car(it) })
+        val game = RacingGame(cars)
+
+        println("\n실행 결과")
+        repeat(tryCount) {
+            game.race()
+            ResultView.printRaceResult(cars)
+        }
+
+        ResultView.printWinners(cars.findWinners())
+    }
+}
+
+object InputView {
+    fun readCarNames(): List<String> {
+        while (true) {
+            try {
+                println("경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)")
+                val input = readln()
+                return input.split(",").map { it.trim() }.also {
+                    require(it.all { name -> name.length in 1..5 }) { "[ERROR] 이름은 1자 이상 5자 이하만 가능합니다." }
+                }
+            } catch (e: IllegalArgumentException) {
+                println(e.message)
+            }
+        }
+    }
+
+    fun readTryCount(): Int {
+        while (true) {
+            try {
+                println("시도할 회수는 몇회인가요?")
+                val input = readln()
+                return input.toInt().also {
+                    require(it > 0) { "[ERROR]-회수는 1 이상이어야 합니다." }
+                }
+            } catch (e: Exception) {
+                println("[ERROR] 올바른 숫자를 입력해주세요.")
+            }
+        }
+    }
+}
+
+object ResultView {
+    fun printRaceResult(cars: Cars) {
+        cars.all().forEach {
+            println("${it.name} : ${"-".repeat(it.position)}")
+        }
+        println()
+    }
+
+    fun printWinners(winners: List<Car>) {
+        println("최종 우승자 : ${winners.joinToString(", ") { it.name }}")
+    }
+}
+
+class RacingGame(private val cars: Cars) {
+    fun race() {
+        cars.moveAll()
+    }
+}
+
+class Cars(private val cars: List<Car>) {
+    fun moveAll() {
+        cars.forEach { it.move(RandomGenerator.generate()) }
+    }
+
+    fun all(): List<Car> = cars
+
+    fun findWinners(): List<Car> {
+        val max = cars.maxOf { it.position }
+        return cars.filter { it.position == max }
+    }
+}
+
+class Car(val name: String, var position: Int = 0) {
+    fun move(condition: Int) {
+        if (condition >= 4) position++
+    }
+}
+
+object RandomGenerator {
+    fun generate(): Int = (0..9).random()
+}