Scala Tuples

by Online Tutorials Library July 14, 2022

Scala Tuples

A tuple is a collection of elements in ordered form. If there is no element present, it is called empty tuple. You can use tuple to store any type of data. You can store similar type or mix type data also. You can use it to return multiple values from a function

Scala Tuple Example

In the following example, we have created tuple of different types of elements.

 object MainObject{     def main(args:Array[String]){         var tuple = (1,5,8,6,4)     // Tuple of integer values         var tuple2 = (“Apple”,”Banana”,”Gavava”)    // Tuple of string values         var tuple3 = (2.5,8.4,10.50)    // Tuple of float values         var tuple4 = (1,2.5,”India”)    // Tuple of mix type values         println(tuple)         println(tuple2)         println(tuple3)         println(tuple4)     } } 

Output:

(1,5,8,6,4) (Apple,Banana,Gavava) (2.5,8.4,10.5) (1,2.5,India)

Scala Tuple Example: Accessing Tuple Elements

In this example, we are accessing tuple elements by using index. Here, we are using productIterator for iterating tuple elements.

 object MainObject{     def main(args:Array[String]){         var tupleValues = (1,2.5,”India”)         println(“iterating values: “)         tupleValues.productIterator.foreach(println)    // Iterating tuple values using productIterator         println(“Accessing values: “)         println(tupleValues._1) // Fetching first value         println(tupleValues._2) // Fetching second value     } } 

Output:

iterating values:  1 2.5 India Accessing values:  1 2.5

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