Dividing Streams.java

[Brian Goetz]

> Not sure where (or even if):
>    iterate (given T0 and f, infinite stream of T0, f(T0), f(f(T0)), ...)
>    generate (infinite stream of independent applications of a generator,
> good for infinite constant and random streams, though not much else,
> used by impl of Random.{ints,longs,gaussians}).

Anyone want to argue for narrowing or expanding this list?

> Others that we've talked about adding:
>    ints(), longs()  // to enable things like ints().filter(...).limit(n)

Anyone compelled by these?  I kind of like them.

Do we want to add inclusive as well as half-open ranges?

>    indexedGenerate(i -> T)

Anyone compelled by this one?