[Kotlin] ์ธํ„ฐํŽ˜์ด์Šค

2020. 8. 27. 20:54ยท๊ฐœ๋ฐœ ํƒ€์ž„์บก์А/Kotlin

์ธํ„ฐํŽ˜์ด์Šค

์ธํ„ฐํŽ˜์ด์Šค๋Š” ์ถ”์ƒ ํด๋ž˜์Šค์™€ ๋น„์Šทํ•˜์ง€๋งŒ ๋‹จ์ผ ์ƒ์†๋งŒ ๋˜๋Š” ํด๋ž˜์Šค์™€๋Š” ๋‹ค๋ฅด๊ฒŒ ๋‹ค์ค‘ ๊ตฌํ˜„์ด ๊ฐ€๋Šฅํ•˜๋‹ค.

 

์ธํ„ฐํŽ˜์ด์Šค์˜ ์„ ์–ธ

interface Runnable {
    fun run()

    fun fastRun() = println("๋นจ๋ฆฌ ๋‹ฌ๋ฆฐ๋‹ค")
}

#์ถ”์ƒ๋ฉ”์„œ๋“œ๋Š” abstract ํ‚ค์›Œ๋“œ๊ฐ€ ํ•„์š”ํ•œ๋ฐ ์ธํ„ฐํŽ˜์ด์Šค์—์„œ๋Š” ์ƒ๋žต ๊ฐ€๋Šฅํ•˜๋‹ค.

์ธํ„ฐํŽ˜์ด์Šค๋Š” ๊ตฌํ˜„์ด ์—†๋Š” ๋ฉ”์„œ๋“œ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ ๊ตฌํ˜„๋œ ๋ฉ”์„œ๋“œ๋„ ํฌํ•จ ๊ฐ€๋Šฅํ•˜๋‹ค.

 

์ธํ„ฐํŽ˜์ด์Šค์˜ ๊ตฌํ˜„

class Human : Runnable {
    override fun run(){
        println("๋‹ฌ๋ฆฐ๋‹ค")
    }
}

#์ธํ„ฐํŽ˜์ด์Šค๋ฅผ ๊ตฌํ˜„ํ•  ๋•Œ๋Š” ์ธํ„ฐํŽ˜์ด์Šค ์ด๋ฆ„์„ : ๋’ค์— ์ ๋Š”๋‹ค. ๊ทธ๋ฆฌ๊ณ  ๋ฏธ๊ตฌํ˜„ ๋ฉ”์„œ๋“œ๋ฅผ ์ž‘์„ฑํ•œ๋‹ค. ์ด๋•Œ override ํ‚ค์›Œ๋“œ๋ฅผ ๋ฉ”์„œ๋“œ ์•ž์— ์ถ”๊ฐ€ํ•œ๋‹ค.

 

์ƒ์†๊ณผ ์ธํ„ฐํŽ˜์ด์Šค๋ฅผ ํ•จ๊ป˜ ๊ตฌํ˜„

open class Animal {
    
}

interface Runnable {
    fun run()
    
    fun fastRun() = println("๋นจ๋ฆฌ ๋‹ฌ๋ฆฐ๋‹ค.")
}

interface Eatable {
    fun eat()
}

class Dog : Animal(), Runnable, Eatable {
    override fun eat(){
        println("๋จน๋Š”๋‹ค.")
    }
    
    override fun run(){
        println("๋‹ฌ๋ฆฐ๋‹ค.")
    }
}

val dog = Dog()
dog.run()
dog.eat()

#์ธํ„ฐํŽ˜์ด์Šค๋Š” ์ฝค๋งˆ๋กœ ๊ตฌ๋ถ„ํ•˜์—ฌ ์—ฌ๋Ÿฌ ์ธํ„ฐํŽ˜์ด์Šค ๋™์‹œ์— ๊ตฌํ˜„ ๊ฐ€๋Šฅํ•˜๋‹ค.

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