WebThe String class includes a method for concatenating two strings − string1.concat (string2); This returns a new string that is string1 with string2 added to it at the end. You can also use the concat () method with string literals, as in − "My name is ".concat ("Zara"); Strings are more commonly concatenated with the + operator, as in − 1 Answer Sorted by: 22 For simplicity, use toList: val trimmedList: List [String] = str.split ("\\n").map (_.trim).toList For complexity, use breakOut (which avoids creating an intermediate collection from map ): import collection.breakOut val trimmedList: List [String] = str.split ("\\n").map (_.trim) (breakOut) Share Improve this answer Follow

Scala - Strings - TutorialsPoint

WebAug 3, 2024 · In Scala API, ‘slice’ function is used to select an interval of elements. It takes two parameters of “Int” type and returns subset or whole or none element (s) of original Collection (or String or Array). Real-world … WebDec 8, 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. fun facts about david and goliath

How to convert a string with newline into a list of strings in Scala?

WebConverting a string with newline into a list of strings: In Scala, you can do multiple things, and converting a string into a sequence/list is one of them. Using two or three different methods that are inbuilt in Scala you can easily convert a string with newline characters into a sequence/list of Strings. WebFeb 18, 2024 · There are at least two ways to merge Scala Lists. First, you can merge two Scala lists using the ::: method of the List class: scala> val a = List (1,2,3) a: List [Int] = List (1, 2, 3) scala> val b = List (4,5,6) b: List [Int] = List (4, 5, 6) scala> val c = a ::: b c: List [Int] = List (1, 2, 3, 4, 5, 6) WebIn order to convert Spark DataFrame Column to List, first select () the column you want, next use the Spark map () transformation to convert the Row to String, finally collect () the data to the driver which returns an Array [String]. Among all examples explained here this is best approach and performs better with small or large datasets. fun facts about david attenborough