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root/jsr166/jsr166/src/main/java/util/Queue.java

Comparing jsr166/src/main/java/util/Queue.java (file contents):
Revision 1.17 by dl, Fri Sep 12 15:38:26 2003 UTC vs.
Revision 1.19 by dl, Mon Sep 15 12:02:23 2003 UTC

#	Line 83 | Line 83 | package java.util;
83		public interface Queue<E> extends Collection<E> {
84
85		/**
86	<	* Inserts the specified element to this queue, if possible.  When
86	>	* Inserts the specified element into this queue, if possible.  When
87		* using queues that may impose insertion restrictions (for
88		* example capacity bounds), method <tt>offer</tt> is generally
89		* preferable to method {@link Collection#add}, which can fail to
#	Line 96 | Line 96 | public interface Queue<E> extends Collec
96		boolean offer(E o);
97
98		/**
99	<	* Retrieves and removes the head of this queue, if it is available.
99	>	* Retrieves and removes the head of this queue, or <tt>null</tt>
100	>	* if this queue is empty.
101		*
102		* @return the head of this queue, or <tt>null</tt> if this
103		*         queue is empty.
#	Line 104 | Line 105 | public interface Queue<E> extends Collec
105		E poll();
106
107		/**
108	<	* Retrieves and removes the head of this queue.
109	<	* This method differs
110	<	* from the <tt>poll</tt> method in that it throws an exception if this
110	<	* queue is empty.
108	>	* Retrieves and removes the head of this queue.  This method
109	>	* differs from the <tt>poll</tt> method in that it throws an
110	>	* exception if this queue is empty.
111		*
112		* @return the head of this queue.
113		* @throws NoSuchElementException if this queue is empty.
#	Line 115 | Line 115 | public interface Queue<E> extends Collec
115		E remove();
116
117		/**
118	<	* Retrieves, but does not remove, the head of this queue.
119	<	* This method differs from the <tt>poll</tt>
120	<	* method only in that this method does not remove the head element from
121	<	* this queue.
118	>	* Retrieves, but does not remove, the head of this queue,
119	>	* returning <tt>null</tt> if this queue is empty.
120		*
121	<	* @return the head of this queue, or <tt>null</tt> if this queue is empty.
121	>	* @return the head of this queue, or <tt>null</tt> if this queue
122	>	* is empty.
123		*/
124		E peek();
125

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