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    Note: If the lists don't provide efficient random access (eg:linked list), each of those get() will be O(n) instead of O(1) Commented Jul 9, 2019 at 11:09
  • Note that Map.Entry can be easily used in Java 8 as well, using the AbstractMap.SimpleEntry class: .mapToObj(i -> new SimpleEntry<>(as.get(i), bs.get(i))). Commented Aug 12, 2024 at 19:39