February 2014
Beginner
1248 pages
62h 25m
English
Content preview from Java™ How To Program (Early Objects), Tenth Edition
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Section 16.9 Class PriorityQueue and Interface Queue
• Interface Queue (p. 710) extends interface Collection and provides additional operations for inserting, removing and inspecting elements in a queue.
• PriorityQueue (p. 710) implements interface Queue and orders elements by their natural ordering or by a Comparator object that’s supplied to the constructor.
• PriorityQueue method offer (p. 710) inserts an element at the appropriate location based on priority order. Method poll (p. 710) removes the highest-priority element of the priority queue. Method peek (peek) gets a reference to the highest-priority element of the priority queue. Method clear (p. 710) removes all elements in the priority queue. Method size (p. 710) gets the number of ...
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