Scala example source code file (bitsets.scala)

This example Scala source code file (bitsets.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

app, bitset, bitset, list, list, test, testimmutable, testimmutable, testmutable, testmutable

The Scala bitsets.scala source code

//############################################################################
// Bitsets
//############################################################################

//############################################################################

object TestMutable {
  import scala.collection.mutable.BitSet

  val ms0 = new BitSet
  val ms1 = new BitSet(8)
  val ms2 = new BitSet(0)
  ms0 += 2
  ms1 ++= List(1, 2)
  ms1 -= 1
  ms1 --= List(1)
  ms2(2) = true
  ms2(3) = false

  Console.println("ms0 = " + ms0)
  Console.println("ms1 = " + ms1)
  Console.println("ms2 = " + ms2)

  Console.println("mb0 = " + ms0.contains(-1))
  Console.println("mb1 = " + ms1.contains(2))
  Console.println("mb2 = " + ms2.contains(3))

  Console.println("xs0 = " + ms0.iterator.toList)
  Console.println("xs1 = " + ms1.iterator.toList)
  Console.println("xs2 = " + ms2.iterator.toList)

  Console.println("ma0 = " + ms0.toList)
  Console.println("ma1 = " + ms1.toList)
  Console.println("ma2 = " + ms2.toList)

  Console.println("mi0 = " + ms0.toImmutable)
  Console.println("mi1 = " + ms1.toImmutable)
  Console.println("mi2 = " + ms2.toImmutable)
  Console.println
}

object TestImmutable {
  import scala.collection.immutable.BitSet

  val is0 = BitSet()
  val is1 = BitSet.fromArray(Array())
  val is2 = BitSet.fromArray(Array(4))
  val is3 = BitSet.empty

  Console.println("is0 = " + is0)
  Console.println("is1 = " + is1)
  Console.println("is2 = " + is2)
  Console.println("is3 = " + is3)

  Console.println("ib0 = " + is0.contains(-1))
  Console.println("ib1 = " + is1.contains(0))
  Console.println("ib2 = " + is2.contains(2))
  Console.println("ib3 = " + is3.contains(2))

  Console.println("ys0 = " + is0.iterator.toList)
  Console.println("ys1 = " + is1.iterator.toList)
  Console.println("ys2 = " + is2.iterator.toList)
  Console.println("ys3 = " + is3.iterator.toList)

  Console.println("ia0 = " + is0.toList)
  Console.println("ia1 = " + is1.toList)
  Console.println("ia2 = " + is2.toList)
  Console.println("ia3 = " + is3.toList)
  Console.println
}

object Test extends App {
  TestMutable
  TestImmutable
}

//############################################################################