WebJul 26, 2024 · scala> arr.map (x => x (0).toString) //res2: Array [String] = Array (conversionevents, elements, pageviews, productviews) But if you have data as //arr: … WebScala provides many built-in methods to convert Strings, Ints, Lists and Arrays. We use these for the clearest, smallest code. ToString. Here we convert an Int to a string. And then we convert that string into an Int again. We use the toString def (part of scala.Any) and the toInt def (part of StringLike).

Spark – Convert array of String to a String column - Spark …

WebAug 28, 2024 · scala> val a = Array (1, 2, 3) a: Array [Int] = Array (1, 2, 3) scala> a.reduceLeft (_ + _) res0: Int = 6 scala> a.foldLeft (20) (_ + _) res1: Int = 26 scala> a.foldLeft (100) (_ + _) res2: Int = 106 In the last two examples, foldLeft uses 20 and then 100 for its first element, which affects the resulting sum as shown. WebFeb 8, 2024 · val bytes = Array [ Byte ] ( 101, 101, 108, 108, 111 ) val bytesString = bytes.map (_.toChar).mkString. Since this Byte Array is encoded using UTF-8, we can … sql cx

Program to convert Java list of floats to a String in Scala

WebArray is a special kind of collection in Scala. On the one hand, Scala arrays correspond one-to-one to Java arrays. That is, a Scala array Array[Int] is represented as a Java … WebJan 14, 2024 · Now, lets see some examples and then discuss how it works in details. Example:1# import scala.collection.JavaConversions._ object GfG { def main (args:Array [String]) { val list = new java.util.ArrayList [String] () list.add ("geeks") list.add ("for") list.add ("geeks") val str = list.toString println (str) } } Output: [geeks, for, geeks] WebSep 24, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. sql date c#