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Mastering Kotlin Essentials

Data Classes vs. Tuples

Explore how Kotlin data classes differ from tuples such as Pair and Triple. Understand their uses, benefits for readability and safety, and when to prefer data classes in your Kotlin programming for better code management.

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The Pair and Triple data classes

Data classes offer more than what is generally provided by tuplesIn programming, a tuple is an ordered collection of elements. In Kotlin, data classes like Pair and Triple function as tuples, offering additional features and replacing traditional tuple usage.. They have replaced tuples in Kotlin since they’re considered better practice. The only tuples that are left are Pair and Triple, but these are actually data classes under the hood

Kotlin 1.5
data class Pair<out A, out B>(
   val first: A,
   val second: B
) : java.io.Serializable {
   override fun toString(): String =
       "($first, $second)"
}
data class Triple<out A, out B, out C>(
   val first: A,
   val second: B,
   val third: C
) : java.io.Serializable {
   override fun toString(): String =
       "($first, $second, $third)"
}
...