Scala List addString() method with a separator with example Last Updated : 26 Jul, 2019 Improve Improve Like Article Like Save Share Report This method is same as addString() method but here a separator is also included. Method Definition: def addString(b: StringBuilder, sep: String): StringBuilder Return Type: It returns the elements of the list to a string builder along with a separator between them. Example #1: // Scala program of addString() // method with a separator // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating a list val m1 = List(1, 3, 5, 2) // Applying addString method val res = m1.addString(new StringBuilder(), "*") // Displays output println(res) } } Output: 1*3*5*2 Example #2: // Scala program of addString() // method with a separator // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating a list val m1 = List(1, 3, 5, 2) // Applying addString method val res = m1.addString(new StringBuilder(), "_") // Displays output println(res) } } Output: 1_3_5_2 Like Article Suggest improvement Previous Scala List mkString() method with example Next Scala Iterator toSet() method with example Share your thoughts in the comments Add Your Comment Please Login to comment...