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In java.util.PriorityQueue we have the methods add(E e) and offer(E e). Both methods are documented as:
Inserts the specified element into this priority queue.
What are the differences between these two methods?
In java.util.PriorityQueue we have the methods add(E e) and offer(E e). Both methods are documented as:
Inserts the specified element into this priority queue.
What are the differences between these two methods?
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Log in to answerBest Answer · By JanBask Java Expert
Answered on Oct 13, 2022
Queue Offer vs Add
The difference is that offer() will return false if it fails to insert the element on a size restricted Queue, whereas add() will throw an IllegalStateException.
You should use offer() when failure to insert an element would be normal, and add() when failure would be an exceptional occurrence (that needs to be handled).
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