Java Best way to filter a list of objects

Question

I have a list of objects that say Sales. I want only Sales objects whose Product matches those in another list, for example saleProductList.

With the exception of loops, there is a better way to do this.

Answer 1

If you already use the Google Guava library, it has the Collections2.filter () method , which will only return elements from which match the given Predicate .

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Answer 2

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Answer 3

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, filter (...): Iterables.filter(Iterable, Predicate)

Answer 4

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Answer 5

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Answer 6

Google libray:

List result1 = Lists.newArrayList(Collections2.filter(originalList,filterPredicate));
List result2 = Lists.newLinkedList(Collections2.filter(originalList,filterPredicate));

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Iterable result3 = Iterables.filter(originalList,filterPredicate));  // Pangea solution
Iterator result4 = Iterators.filter(originalList.iterator(),filterPredicate));

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