In Java, the Queue interface provides two methods for adding elements to the queue: add(E e) and offer(E e). Both methods add the specified element to the queue if it is possible to do so immediately …

What is the difference between these two methods? Queue.add - throws an exception if the operation fails, Queue.offer - returns a special value (either null or false, depending on the operation). Any …

11 You're confusing Queue with Stack; push and pop are associated with the latter. Think of Queue in its proper producer/consumer context; poll and offer will make far more sense.

Mar 23, 2013 · The two functions come from two different interfaces that PriorityQueue implements: add() comes from Collection. offer() comes from Queue. For a capacity-constrained queue, the …

Jul 11, 2017 · How do I get a PriorityQueue to sort on what I want it to sort on? Also, is there a difference between the offer and add methods?

5 The Queue documentation does a fairly good job of explaining the difference. add(E e) has the capability of throwing an exception if an element can't be added into the queue. This happens in …

About offer and add: Well, that depends on how do you want to handle the failure of the insertion in the queue: The add method, which Queue inherits from Collection, inserts an element unless it would …

Aug 15, 2016 · I have a linked blocking queue in which I am performing insertion and removal operations. I need to know which one is better put or offer in case of linked blocking queue. …

offer() returns boolean whereas add() throws Exception if there are no elements in the Queue. So, which one should be used in general and what are the advantages of using one over the other?

Mar 22, 2018 · The Queue interface was added in Java 5. It defined the offer method, which adds an element at the end. (The offer method and the add method both return booleans. They differ in that …