Using a stream to iterate n times instead of using a for loop to create n items

Question

Say I want to create n items. Pre Java 8, I would write:

List<MyClass> list = new ArrayList<>(); for (int i = 0; i < n; i++) {     list.add(new MyClass()); } 

Is there an elegant way to use a stream to create n items?
I thought of this:

List<MyClass> list = Stream.iterate(0, i -> i).limit(10)     .map(o -> new MyClass()).collect(Collectors.toList()); 

Is there a standard/better way of coding this?

Note that the actual usage is a bit more complex and using a stream would be more flexible because I can immediately pump the items through other functions in one line without even creating a reference to the list, for example grouping them:

Stream.iterate(0, i -> i).limit(10).map(o -> new MyClass())     .collect(Collectors.groupingBy(...)); 

Answer 1

You could use Stream#generate with limit:

Stream.generate(MyClass::new).limit(10);