Scala Program: Checking superset relationships between sets

Last update on December 21 2024 10:27:28 (UTC/GMT +8 hours)

Write a Scala program to create a set and check if it is a superset of another set.

Sample Solution:

Scala Code:

object SupersetCheckExample {
  def main(args: Array[String]): Unit = {
    // Create two sets
    val set1 = Set(1, 2, 3, 4)
    val set2 = Set(2, 4, 5)

    // Print the sets
    println("Set1: " + set1)
    println("Set2: " + set2)

    // Check if set1 is a superset of set2
    val isSuperset = set1.forall(set2.contains)

    // Print the result
    if (isSuperset) {
      println("Set1 is a superset of Set2.")
    } else {
      println("Set1 is not a superset of Set2.")
    }
  }
}

Sample Output:

Set1: Set(1, 2, 3, 4)
Set2: Set(2, 4, 5)
Set1 is not a superset of Set2.

Explanation:

In the above exercise,

• First, we create two sets set1 and set2 where set1 contains the elements 1, 2, 3, and 4, and set2 contains the elements 2, 4, and 5.
• To check if set1 is a superset of set2, we use the forall method along with the contains method of set2.
• In the program, we check if set1 is a superset of set2 by using the line val isSuperset = set1.forall(set2.contains).
• Finally, we print the sets and the result of the superset check.

Scala Code Editor :

Previous: Checking if a set is a subset of another set.
Next: Checking if a set is disjoint from another set.