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Scala program to sort the items of List collection

belongs to collection: Scala List Programs

YasminRadwan26
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2022-07-08
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Here, we will create a list of integers using List collection. Then we will sort the items of the List collection in ascending order using the sorted property of the List collection.

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

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YasminRadwan26
2022-07-08
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Program/Source Code:

The source code to sort the items 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 sort the items of List collection

import scala.collection.immutable._

object Sample {
  // Main method
  def main(args: Array[String]) {
    var intList = List(1, 5, 3, 2, 4);
    var cnt: Int = 0;

    println("List items:");
    while (cnt < 5) {
      printf("%d ", intList(cnt));
      cnt = cnt + 1;
    }
    println();

    intList = intList.sorted;

    println("Sorted List:");
    cnt = 0;
    while (cnt < 5) {
      printf("%d ", intList(cnt));
      cnt = cnt + 1;
    }
    println();

  }
}

Output:

List items:
1 5 3 2 4 
Sorted List:
1 2 3 4 5

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 sorted the items of the list in ascending order using the sorted property of List collection and print the result on the console screen.

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