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public interface PriorityQueue
Interface for priority queues. This interface does not dictate whether it is min or max heap.
Method Summary | |
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void |
clear()
Clear all elements from queue. |
void |
insert(java.lang.Object element)
Insert an element into queue. |
boolean |
isEmpty()
Test if queue is empty. |
java.lang.Object |
peek()
Return element on top of heap but don't remove it. |
java.lang.Object |
pop()
Return element on top of heap and remove it. |
Method Detail |
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void clear()
void insert(java.lang.Object element)
element
- the element to be inserted
java.lang.ClassCastException
- if the specified element
's
type prevents it from being compared to other items in the queue to
determine its relative priority.boolean isEmpty()
java.lang.Object peek() throws java.util.NoSuchElementException
java.util.NoSuchElementException
- if isEmpty() == true
java.lang.Object pop() throws java.util.NoSuchElementException
java.util.NoSuchElementException
- if isEmpty() == true
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