Question

How to extract a float from a string in Scala

Answer 1

import scala.util.matching.Regex

object FloatExtractor extends App {
  val text = "The price is 148.95 dollars"

  val floatRegex: Regex = """[-+]?\d*\.\d+|\d+""".r

  floatRegex.findFirstIn(text) match {
    case Some(matched) =>
      val number = matched.toDouble
      println(f"Extracted float: $number%.2f")
    case None =>
      println("No float found.")
  }
}



/*
run:
 
Extracted float: 148.95
 
*/

 

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