Question

How to convert decimal number to binary in Scala

Answer 1

val decimalNumber = 41

val binaryString = decimalNumber.toBinaryString

println(s"Binary representation of $decimalNumber is $binaryString")

  
     
/*
run:
  
Binary representation of 41 is 101001

*/

 

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Answer 2

def decimalToBinary(n: Int): String = {
  if (n == 0) "0"
  else if (n == 1) "1"
       else decimalToBinary(n / 2) + (n % 2).toString
}
 
val decimalNumber = 41
val binaryString = decimalToBinary(decimalNumber)
 
println(s"Binary representation of $decimalNumber is $binaryString")
 
   
      
/*
run:
   
Binary representation of 41 is 101001
 
*/

 

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Answer 3

def decimalToBinary(n: Int): String = {
  var num = n
  var binaryString = ""
  
  while (num > 0) {
    binaryString = (num % 2).toString + binaryString
    num = num / 2
  }
  
  if (binaryString.isEmpty) "0" else binaryString
}

val decimalNumber = 41
val binaryString = decimalToBinary(decimalNumber)

println(s"Binary representation of $decimalNumber is $binaryString")

  
     
/*
run:
  
Binary representation of 41 is 101001

*/

 

70+ SQL courses for beginners and professionals