Question

How to find the first repeated character in a string with Scala

Answer 1

import scala.util.control.Breaks._

object Main extends App {
  def getFirstRepeatedCharacter(s: String): Char = {
    val len = s.length
    var result = ' '
    
    breakable { 
      for (i <- 0 until len) {
        for (j <- 0 until i) {
          if (s(i) == s(j)) {
            result = s(i)
            break
          }
        }
      }
    }

    result
  }

  val s = "abcdxypcbop"
  
  val result = getFirstRepeatedCharacter(s)

  if (result != '-') {
    println(s"First repeated character: $result")
  } else {
    println("No repeated characters")
  }
}


 
 
/*
run:
   
First repeated character: c
 
*/

 

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