[이펙티브 코틀린] item 1-6 예제 코드

이펙티브 코틀린/effectivekotlin/build.gradle.kts

@@ -0,0 +1,31 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+    kotlin("jvm") version "1.5.10"
+    application
+}
+
+group = "me.user"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.0")
+
+    testImplementation(kotlin("test"))
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+
+tasks.withType<KotlinCompile> {
+    kotlinOptions.jvmTarget = "1.8"
+}
+
+application {
+    mainClass.set("MainKt")
+}

이펙티브 코틀린/effectivekotlin/gradle.properties

@@ -0,0 +1 @@
+kotlin.code.style=official

이펙티브 코틀린/effectivekotlin/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

이펙티브 코틀린/effectivekotlin/settings.gradle.kts

@@ -0,0 +1,3 @@
+
+rootProject.name = "effectivekotlin"
+

이펙티브 코틀린/effectivekotlin/src/main/kotlin/Main.kt

@@ -0,0 +1,7 @@
+fun main(args: Array<String>) {
+    println("Hello World!")
+
+    // Try adding program arguments via Run/Debug configuration.
+    // Learn more about running applications: https://www.jetbrains.com/help/idea/running-applications.html.
+    println("Program arguments: ${args.joinToString()}")
+}

이펙티브 코틀린/effectivekotlin/src/main/kotlin/chapter1/item1/BankAccount.kt

@@ -0,0 +1,29 @@
+package chapter1.item1
+
+class BankAccount {
+    var balance = 0.0
+        private set
+
+    fun deposit(depositAmount: Double) {
+        balance += depositAmount
+    }
+
+    fun withdraw(withdrawAmount: Double) {
+        if (balance < withdrawAmount) {
+            throw InsufficientFunds()
+        }
+        balance -= withdrawAmount
+    }
+}
+
+class InsufficientFunds: Exception()
+
+fun main() {
+    val account = BankAccount()
+    println(account.balance)
+    account.deposit(100.0)
+    println(account.balance)
+    account.withdraw(50.0)
+    println(account.balance)
+}
+