A set is a collection of unique items that cannot be repeated. In Scala, non-negative integer sets are called Bitsets, and they are represented as variable-size arrays of bits packed into 64-bit words. The largest number in a bitset represents its memory footprint.
Syntax:
var BS: BitSet = BitSet(element1, element2, element3, ....)
Here, BS represents the name of the BitSet that was created.
scala.collection.immutable.BitSet and scala.collection.mutable.BitSet are the two versions of BitSet provided in Scala. Although both are identical, mutable data structures change the bits in place, thus making them less concurrency friendly than immutable data structures.
Example:
import scala.collection.immutable.BitSet
object Madanswer
{
def main(args:Array[String])
{
println("Initialize a BitSet")
val numbers: BitSet = BitSet(5, 6, 7, 8)
println(s"Elements of BitSet are = $bitSet")
println(s"Element 6 = ${bitSet(6)}")
println(s"Element 3 = ${bitSet(3)}")
println(s"Element 7 = ${bitSet(7)}")
}
Output:
Initialize a BitSet
Elements of BitSet are = BitSet(5,6,7,8)
Element 6 = true
Element 3 = false
Element 7 = true
