Explain the main difference between fail-fast and fail-safe iterators?

Kapil S. Kapil S.

Kapil S.

Associate Consultant aspiring to be a Software Developer | Java | SpringBoot | MySQL | HTML5 | CSS | Javascript

发布日期: 2025年3月14日
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Hello Everyone????

Explain the main difference between fail-fast and fail-safe iterators?

The main difference between fail-fast and fail-safe iterators is whether or not the collection can be modified while it is being iterated.

Fail-fast?iterators operate directly on the collection itself. This means that during iteration, fail-fast iterators fail as soon as they realize that the collection has been modified.

Fail-safe?iterators operate on a cloned copy of the collection and therefore do not throw any exception if the collection is modified during iteration.

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