Question

How to get the substring between two substrings in Scala

Answer 1

object SubstringBetweenTwoSubstrings_Java {
  def apply(str: String, suba: String, subb: String): String = {
    val posA = str.indexOf(suba)
    val posB = str.lastIndexOf(subb)

    if (posA == -1) return ""
    if (posB == -1) return ""

    val indexEndSuba = posA + suba.length
    if (indexEndSuba >= posB) return ""

    str.substring(indexEndSuba, posB)
  }

  def main(args: Array[String]): Unit = {
    val str = "JavaScript:C#:C C++:Java:Scala:Python"
    
    println(apply(str, "C#", "Java"))
  }
}



/*
run:

:C C++:

*/

 

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