WebExample #1 – Basic for loop Syntax: for( item <- List){ // Inner loop code } In the syntax, we are iterating over all the elements of a list. For each iteration value of one of the elements is sequentially placed in the item var. We can then use this item var for operating on it. Code: Print values of items in a list WebDec 4, 2024 · Although using an iterator with hasNext () and next () is a common way to loop over a collection in Java, they aren’t commonly used in Scala, because Scala collections …

Scala ‘for loop’ examples and syntax alvinalexander.com

WebThis foreach function can be used to iterate over map also. Method Definition def foreach(f: ((A, B)) => Unit): Unit def foreach( f:(A) ⇒Unit): Unit This returns all the elements of a Map after applying the given function to each It is applicable to both Scala’s Mutable and Immutable collection. We can use this method to loop with all the elements. manipulate accumulators il fornaio san jose ca

Scala for Loop Top 6 Examples to Implement Scala for Loop

WebDeclaring a Scala Iterator Basically, to declare an iterator in Scala over a collection, we pass values to Iterator (). scala> val it=Iterator(7,8,9,2,3) it: Iterator[Int] = non-empty iterator Accessing values with a Scala Iterator We take this iterator: scala> val it=Iterator(2,4,3,7,9) it: Iterator[Int] = non-empty iterator WebJun 6, 2024 · Method Definition: def sum: A Return Type: It returns the sum of all the elements in the stated iterator. Example: object GfG { def main (args:Array [String]) { val iter = Iterator (2, 4, 5, 6) val iter1 = iter.sum println (iter1) } } Output: 17 Here, the sum of all the elements is printed. Example: object GfG { def main (args:Array [String]) { WebJun 18, 2024 · There are a number of ways to iterate over a Scala List using the foreach method (which is available to Scala sequences like List, Array, ArrayBuffer, Vector, Seq, … il fornello syosset daily specials