Q:

Scala program to add and remove elements from the set collection

belongs to collection: Scala Set Programs

YasminRadwan26
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2022-07-08
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Here, we will create a set of integer numbers using the Set collection class. Then we will add and remove the item from created set using the "+=" and "-=" operator and then print the result on the console screen.

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YasminRadwan26
2022-07-08
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Program/Source Code:

The source code to add and remove elements from the set collection is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to add and remove elements from set

import scala.collection.immutable._

object Sample {
  // Main method
  def main(args: Array[String]) {
    var numbers = Set(10, 20, 30, 40, 50);

    println(numbers);

    // Add item to the set collection.
    numbers += 60;
    println(numbers);

    // Remove item from the set collection.
    numbers -= 40;
    println(numbers);
  }
}

Output:

HashSet(10, 20, 50, 40, 30)
HashSet(10, 20, 60, 50, 40, 30)
HashSet(10, 20, 60, 50, 30)

Explanation:

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 of numbers using the Set collection class. Then we added and removed the item from the numbers set collection using the "+=" and "-=" operators and printed the result on the console screen.

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