Heaps
Heap as a Priority Queue in java
Heaps (Priority Queues in Java)
Heaps are represented using Priority Queue.
- It gives O(1) seek time.
- Does not permit null elements.
- The elements are ordered according to their natural ordering, or by a Comparator provided at queue construction time.
METOHDS :
-
add(E e)
Inserts the specified element into this priority queue. -
offer(E e)
Inserts the specified element into this priority queue -
poll()
Retrieves and removes the head of this queue, or returns null if this queue is empty.