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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