nodequeue-dequeue.html

来自「经典的数据结构源代码(java 实现)」· HTML 代码 · 共 23 行

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<html><head><title>Code Fragment</title></head><body text=#000000><center></center><br><br><dl><dd><pre>  <font color=#8000a0><font color=#8000a0>public</font> </font>E <font color=#0000ff>dequeue</font>() <font color=#8000a0><font color=#ff8000>throws</font> </font>EmptyQueueException {    <font color=#ff8000>if</font><font color=#0000ff> </font>(size == 0)      <font color=#8000a0><font color=#ff8000>throw</font> </font><font color=#ff8000>new</font> <font color=#0000ff>EmptyQueueException</font>(<font color=#008000>"Queue is empty."</font>);    <font color=#8000a0>E </font>tmp = head.<font color=#0000ff>getElement</font>();    head = head.<font color=#0000ff>getNext</font>();    size--;    <font color=#ff8000>if</font><font color=#0000ff> </font>(size == 0)      tail = null; <font color=#ff0080>// the queue is now empty</font>    <font color=#8000a0><font color=#ff8000>return</font> </font>tmp;  }</dl></body></html>

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