Java basic review: queue interface & queue list

Queue interface:

Inherited from collection Interface

FIFO

Common Methods:

Offer () inserts elements at the end of the Team for cross-border checks

Peek () obtains the element of the queue header. The check is not empty.

Poll () gets and deletes the Header element of the team, and checks for non-empty content.

 

Shortlist:

The inclulist implements the deque interface (double ended queue, dual-end Queue), while deque is a sub-interface of the queue.

Common Methods:

Addfirst () insert the queue Header

Addlast () insert to team end

Getfirst () gets the team Header

Getlast () to get the team end

Removefirst () deletes a queue Header

Removelast () deletes the team end

 

Peekfirst () obtains the queue header, which is not empty for checking.

Peeklast () is used to obtain the end of the team and check whether it is not empty.

Pollfirst () gets and deletes the team header, non-empty check

Polllast () gets and deletes the team end, non-empty check