Question

How to check if an integer contains an even or odd number of bits set in Scala

Answer 1

object BitParityChecker extends App {
  val num = 42 // 00101010 in binary

  // Convert to binary string and count '1's
  val binaryStr = num.toBinaryString
  val bitCount = binaryStr.count(_ == '1')
  val result = bitCount % 2

  println("0 = even number of bits set")
  println("1 = odd number of bits set")
  println(s"result: $result")
}




/*
run:
 
0 = even number of bits set
1 = odd number of bits set
result: 1
 
*/

 

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