WebIn Scala, we can create a list in two ways We can assign value to the list while creating the list object without defining the data type. We can also create a list with data type declaration with it so only that type of data we can assign to a specific list later. valvariable_name: List [data_type] = List (element1, element2 element3, element4) and WebScala Assignment Operators These operators are used to assign values to a variable or an object. Example: Assignment operators in Scala Code: object Assign { def main (args: Array [String]) { var a = 10; var b = 5; println (a += b); println (a –= b); println (a *= b); println (a /= b); println (a %= b); a = 20; b = 15; println (a &= b);

Sorting in scala using sorted,sortBy and sortWith function

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Sets Collections (Scala 2.8 - 2.12) Scala Documentation

WebApproaches for avoiding null values include: Use lazy vals abstract class A { val x1: String lazy val x2: String = "mom" println("A: " + x1 + ", " + x2) } class B extends A { lazy val x1: … WebIn a grouped aggregation, aggregate values (e.g. counts) are maintained for each unique value in the user-specified grouping column. In case of window-based aggregations, aggregate values are maintained for each window the event-time of a row falls into. Let’s understand this with an illustration. WebScala Lists are quite similar to arrays which means, all the elements of a list have the same type but there are two important differences. First, lists are immutable, which means elements of a list cannot be changed by assignment. Second, lists represent a linked list whereas arrays are flat. The type of a list that has elements of type T is ... png wash policy pdf