Scala program to create a ListSet

Here, we are going to learn how to create a ListSet in Scala programming language?
Submitted by Nidhi, on June 04, 2021

Problem Solution:

Here, we will create a set of integer numbers using ListSet collection class. Then we will print elements of the list set on the console screen.

The ListSet is implemented using a list data structure. It stores items in reverse insertion order, which means that the newest item will be stored at the head of the list. It maintains insertion order.

Program/Source Code:

The source code to create a ListSet is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to create a ListSet

import scala.collection.immutable._

object Sample {
  // Main method
  def main(args: Array[String]) {
    var nums = ListSet(87, 70, 60, 30, 20);

    println("Elements of list set:");
    nums.foreach((item: Int) => printf("%d ", item));


Elements of list set:
87 70 60 30 20 


Here, we used an object-oriented approach to create the program. And, 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 set nums using ListSet collection. Then we printed the elements of the list set using the foreach loop on the console screen.

Scala Set Programs »


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