41 lines
698 B
Kotlin
41 lines
698 B
Kotlin
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open class Dog {
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open var age: Int = 0
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open fun bark() {
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println("멍멍")
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}
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}
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class Bulldog(final override var age: Int = 0): Dog() {
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final override fun bark() {
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super.bark()
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println("컹컹")
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}
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}
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abstract class Developer {
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abstract var age: Int
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abstract fun code(language: String)
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}
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class Backend(override var age: Int = 0): Developer() {
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override fun code(language: String) {
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println("I code with $language")
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}
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}
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fun main() {
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// val dog = Bulldog(age = 2)
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// println(dog.age)
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// dog.bark()
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val backendDeveloper = Backend(age = 20)
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println(backendDeveloper.age)
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backendDeveloper.code("Kotlin")
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}
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