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Scala program to print the head item of List collection

Here, we are going to learn how to print the head item of List collection in Scala programming language?
Submitted by Nidhi, on June 22, 2021 [Last updated : March 11, 2023]

Scala – Getting Head Item from a List Collection

Here, we will create a list of integers using List collection. Then we will print the first item of the created list using the head property on the console screen.

The List collection is used to store ordered elements. It extends the LinearSeq trait and is used for the immutable linked list.

Scala code to print the head item of List collection

The source code to print the head item of the List collection is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to print the
// head item of List collection

import scala.collection.immutable._

object Sample {
  // Main method
  def main(args: Array[String]) {
    var intList = List(8, 5, 3, 2, 4);

    println("Head item of list is: " + intList.head);
  }
}

Output

Head item of list is: 8

Explanation

In the above program, we used an object-oriented approach to create the program. Here we imported Collection classes using below statement,

import scala.collection.immutable._

Here, we also created a singleton object Sample and defined the main() function. The main() function is the entry point for the program.

In the main() function, we created a list intList using List collection. Then we printed the first item of the created list using the head property on the console screen.

Scala List Programs »

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