Q:

Scala program to merge two sets using the ++ operator

belongs to collection: Scala Set Programs

YasminRadwan26
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2022-07-08
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Here, we will create two sets using the Set collection class. Then we will merge both sets using the "++" operator and 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 merge two sets using the "++" operator is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to merge two sets 
// using "++" operator

import scala.collection.immutable._

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

    // Set of cities.
    val cities = Set("DELHI", "MUMBAI", "AGRA", "GWALIOR")

    val mergeSet = cities ++ luckyNums;

    println(mergeSet);
  }
}

Output:

HashSet(AGRA, 10, 20, GWALIOR, 30, MUMBAI, DELHI)

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 two sets luckyNums, and cities. Then we merged both sets using the "++" operator and printed the result on the console screen.

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