Triple

data class Triple<out A, out B, out C>(val first: A, val second: B, val third: C) : Serializable(source)

Represents a triad of values

There is no meaning attached to values in this class, it can be used for any purpose. Triple exhibits value semantics, i.e. two triples are equal if all three components are equal. An example of decomposing it into values:

Since Kotlin

1.1

Parameters

A

type of the first value.

B

type of the second value.

C

type of the third value.

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val (a, b, c) = Triple(2, "x", listOf(null))
println(a) // 2
println(b) // x
println(c) // [null] 
   //sampleEnd
}
data class Triple<out A, out B, out C>(val first: A, val second: B, val third: C) : Serializable(source)

Represents a triad of values

There is no meaning attached to values in this class, it can be used for any purpose. Triple exhibits value semantics, i.e. two triples are equal if all three components are equal. An example of decomposing it into values:

Since Kotlin

1.0

Parameters

A

type of the first value.

B

type of the second value.

C

type of the third value.

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val (a, b, c) = Triple(2, "x", listOf(null))
println(a) // 2
println(b) // x
println(c) // [null] 
   //sampleEnd
}

Constructors

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constructor(first: A, second: B, third: C)
constructor(first: A, second: B, third: C)

Properties

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val first: A

First value.

Since Kotlin 1.1
val first: A

First value.

Since Kotlin 1.0
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val second: B

Second value.

Since Kotlin 1.1
val second: B

Second value.

Since Kotlin 1.0
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val third: C

Third value.

Since Kotlin 1.1
val third: C

Third value.

Since Kotlin 1.0

Functions

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fun <T> Triple<T, T, T>.toList(): List<T>

Converts this triple into a list.

Since Kotlin 1.1
fun <T> Triple<T, T, T>.toList(): List<T>

Converts this triple into a list.

Since Kotlin 1.0
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open override fun toString(): String

Returns string representation of the Triple including its first, second and third values.

Since Kotlin 1.1
open override fun toString(): String

Returns string representation of the Triple including its first, second and third values.

Since Kotlin 1.0