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I must generate some random numbers and sum them. Something like
result = generateList(range(0, max), generatorFunctionReturningInt()).foreach(sum _)
If generateList generates a List with size = max and values generated by generatorFunctionReturningInt
Or may be something like
result = range(0, max).map(generatorFunctionReturningInt).foreach(sum _)
900
Syntax for defining a Scala List. val variable_name: List[type] = List(item1, item2, item3) or val variable_name = List(item1, item2, item3) A list in Scala is mostly like a Scala array. However, the Scala List is immutable and represents a linked list data structure. On the other hand, Scala array is flat and mutable.
fill() creates a list and fills it with zero or more copies of an element. This fills the list with seven instances of the integer 1. Hope this helps! If you need to know more about Scala, join Spark course today and become the expert.
This is the first method we use to append Scala List using the operator “:+”. The syntax we use in this method is; first to declare the list name and then use the ':+' method rather than the new element that will be appended in the list. The syntax looks like “List name:+ new elements”.
How about this?
Stream.continually(generatorFunctionReturningInt()).take(max).sum
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