CODEWITHSUNDEEP
arraysscala
mogli
mogli

Reputation: 1609

refer to Array pattern in scala

val Array(direction, value, power, type, zone) = Array(1, 2, 3, 4, 5)

Is there any way to refer Array(1, 2, 3, 4, 5) from some reference that we can use to perform other array operations like iterating array, etc..

i want to use direction, value, power, type, zone as they are more meaningful rather then using arr(0), arr(1), etc.. in addition to doing regular operations on array

Upvotes: 0

Views: 82

Answers (4)

moliware
moliware

Reputation: 10278

You can define your array as follows:

val arr @ Array(direction, value, power, t, zone) = Array(1, 2, 3, 4, 5)

This way you can use arr as a normal Array and the other "meaningful" vals.

Note that I changed type by t because the first one is a reserved word of the language.

Upvotes: 2

irundaia
irundaia

Reputation: 1730

If you want the object to have meaningful accessors to the values it is containing, I would suggest to simply use a case class:

case class MyDataClass(direction: Int, values: Int, power: Int, type: Int, zone: Int)

val d = MyDataClass(1, 2, 3, 4, 5)

val dir = d.direction

To use it as you would with a traditional array, I would add an implicit conversion to Array[Int]

Upvotes: 2

HTNW
HTNW

Reputation: 29193

Store the array as normal, then def the elements as indexes into the array.

val array = Array(1,2,3,4,5)
def direction = array(0)
// etc.

This will still work inside of other methods as Scala allows methods in methods.

Upvotes: 1

Harald Nordgren
Harald Nordgren

Reputation: 12399

Am I missing something here? Why not just do

val arr = Array(1, 2, 3, 4, 5)`

and then subscript the individual elements (arr(0), arr(1), etc.) when you need them?

Upvotes: 0

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