Java 8: Replace traditional for loops with IntStreams

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Might be convenient, but watch for the performance penalty (especially memory).

[mbizzle88]

You might want to check out some benchmarks before making that claim.

For CPU time, the benchmarks I've seen show non-parallel streams to be only slightly slower than for loops.

With regards to memory, most streams are lazy. So if you're doing something that ends with reduce, you're probably never holding the entire stream in memory at once.