Question

How to check if a string contains identical digits in Scala

Answer 1

object Main extends App {
  def isStringContainIdenticalDigits(s: String): Boolean = {
    s.toSet.size == 1
  }
  
  val s1 = "88888888"
  println(isStringContainIdenticalDigits(s1)) 
  
  val s2 = "999999991"
  println(isStringContainIdenticalDigits(s2))
}

 
 
/*
run:
   
true
false
 
*/

 

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