In Java, how can you make an ArrayList read-only (so that no one can add elements, edit, or delete elements) after initialization?
In Java, how can you make an ArrayList read-only (so that no one can
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In Java, how can you make an ArrayList read-only (so that no one can add elements, edit, or delete elements) after initialization?
Pass the
ArrayListintoCollections.unmodifiableList(). It returns an unmodifiable view of the specified list. Only use this returnedList, and never the originalArrayList.