Kotlin Mp3 Player Örneği

```kotlin

class Mp3Player {

    fun playSong(songName: String) {

        println("Playing song: $songName")

    }

    fun pauseSong() {

        println("Song paused")

    }

    fun stopSong() {

        println("Song stopped")

    }

}

fun main() {

    val mp3Player = Mp3Player()

    mp3Player.playSong("Shape of You")

    mp3Player.pauseSong()

    mp3Player.playSong("Despacito")

    mp3Player.stopSong()

}

```

Output:

```

Playing song: Shape of You

Song paused

Playing song: Despacito

Song stopped

```