Scala TreeSet diff() method with example

The diff() method is used to find the difference between the two TreeSet. It deletes elements that are present in one TreeSet from the other one.

Method Definition: def diff[B >: A](that: collection.Seq[B]): TreeSet[A]

Return Type: It returns a new TreeSet which consists of elements after the difference between the two given TreeSet.

Example #1:

// Scala program of diff()
// method

// Import TreeSet
import scala.collection.mutable._

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating TreeSet
        val t1 = TreeSet(1, 2, 3, 4, 5)

        val t2 = TreeSet(3, 4, 5)

        // Print the TreeSet
        println("TreeSet_1: " + t1)

        println("TreeSet_2: " + t2)

        // Applying diff method
        val result = t1.diff(t2)

        // Displays output
        print("(TreeSet_1 - TreeSet_2): " + result)

    }
}

Output:

TreeSet_1: TreeSet(1, 2, 3, 4, 5)
TreeSet_2: TreeSet(3, 4, 5)
(TreeSet_1 - TreeSet_2): TreeSet(1, 2)

Example #2:

// Scala program of diff()
// method

// Import TreeSet
import scala.collection.mutable._

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating TreeSet
        val t1 = TreeSet(1, 2, 3, 4, 5)

        val t2 = TreeSet(3, 4, 5, 6, 7, 8)

        // Print the TreeSet
        println("TreeSet_1: " + t1)

        println("TreeSet_2: " + t2)

        // Applying diff method
        val result = t2.diff(t1)

        // Displays output
        print("(TreeSet_2 - TreeSet_1): " + result)

    }
}

Output:

TreeSet_1: TreeSet(1, 2, 3, 4, 5)
TreeSet_2: TreeSet(3, 4, 5, 6, 7, 8)
(TreeSet_2 - TreeSet_1): TreeSet(6, 7, 8)