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Advanced Questions

How can I use Streams to repeat an action a certain number of times?

Yes. You can do this to call a method n times:

IntStream.range(0, n).forEach(i -> doSomething());

By itself this isn’t terribly interesting. But if you put it into a little helper function that takes a couple parameters,

void repeat(int count, Runnable action) { IntStream.range(0, count).forEach(i -> action.run()); }

This will enable you to do things like […]