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Java Introduction to Functional Programming Reduction and Aggregation Ranges

hamsternation
hamsternation
26,615 Points

Ranges vs Limits?

Silly question.. what's the difference between using limits and ranges?

IntStream.rangeClosed(1,20)
                    .maptoObj(i->companies.get(i-1))
                    .forEach(System.out::println);

vs

companies.stream()
                    .map(Company::get)
                    .limit(20)
                    .collect(Collectors.toList());

I probably messed up the code somewhere and there and the return types probably aren't exactly the same but my basic question is... can the two forms be functionally equivalent? or is there a clear technical difference?

Best, Michael

1 Answer

Alexander Zola
Alexander Zola
9,027 Points

range and limit is different thing, thought its obvious, limit gets u first n-elements which matches condition, range gives u control in which range u want it, and obv its IntStream, not the Stream, so u can manipulate with ranges, numbers, u got it)