Scala BitSet -() method with example

Scala Bitsets are sets of non-negative integers which are represented as variable-size arrays of bits packed into 64-bit words. The -() method is utilised to create new set with a given element removed from this set.

Method Definition: def -(elem)

Return Type: It returns new set that contains all elements of this set but that does not contain elem

Example #1:

// Scala program of Bitset -
// method
import scala.collection.immutable.BitSet

// Creating object
object GfG
{

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

        val bitSet: BitSet = BitSet(0, 1, 2, 3)
        println(s"Elements in Bitset are = $bitSet")

        // Applying BitSet -() function
        val bs1: BitSet = bitSet - 0

        // Displays output
        println(bs1)

    }
}

Output:

Elements in Bitset are = BitSet(0, 1, 2, 3)
BitSet(1, 2, 3)

Example #2:

// Scala program of Bitset -
// method
import scala.collection.immutable.BitSet

// Creating object
object GfG
{

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

        val bitSet: BitSet = BitSet(0, 1, 2, 3 )
        println(s"Elements in Bitset are = $bitSet")

        // Applying BitSet -() function
        val bs1: BitSet = bitSet - (1, 3)

        // Displays output
        println(bs1)

    }
}

Output:

Elements in Bitset are = BitSet(0, 1, 2, 3)
BitSet(0, 2)