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@Singhalr31 For a simple "for" loop (without Collections or Maps), Java 8 Stream "could be" overkill. If you need to iterate over a "LARGE" Collection (or Map) , however, Java 8 may be faster because you could avoid creating LOTS of "intermediate" Objects by simply streaming data in the Collection from one operation to another.
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Recursive Digit Sum
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@Singhalr31 For a simple "for" loop (without Collections or Maps), Java 8 Stream "could be" overkill. If you need to iterate over a "LARGE" Collection (or Map) , however, Java 8 may be faster because you could avoid creating LOTS of "intermediate" Objects by simply streaming data in the Collection from one operation to another.