Question

How to check if a string is in a valid format ("XXX-XXX-XXXX") with numbers in Scala

Answer 1

object CheckStringValidFrmatXXX_XXX_XXXX_Scala {
  def main(args: Array[String]): Unit = {
    var s = "771-290-1652"
    if (isValidFormat(s)) {
      println("Valid")
    } else {
      println("Not Valid")
    }

    s = "771-29-162"
    if (isValidFormat(s)) {
      println("Not Valid")
    } else {
      println("Not Valid")
    }

    s = "771-AB1-1620"
    if (isValidFormat(s)) {
      println("Not Valid")
    } else {
      println("Not Valid")
    }
  }

  def isValidFormat(s: String): Boolean = {
    val pattern = "(\\d{3}-)?\\d{3}-\\d{4}"
    
    s.matches(pattern)
  }
}




/*
run:
  
Valid
Not Valid
Not Valid
  
*/

 

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