java数据结构之栈

来源：互联网发布：淘宝店装修软件编辑：程序博客网时间：2024/04/30 05:03

栈接口
[java] view plaincopy
1. <div style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 5.4pt; BACKGROUND: #e6e6e6; PADDING-BOTTOM: 4px; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 95%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: windowtext 0.5pt solid"><div><img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif">package pku.ss.datastructure.IStackLi; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif"> <img id="_71_1080_Open_Image" onclick="this.style.display='none'; document.getElementById('_71_1080_Open_Text').style.display='none'; document.getElementById('_71_1080_Closed_Image').style.display='inline'; document.getElementById('_71_1080_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif"><img id="_71_1080_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_71_1080_Closed_Text').style.display='none'; document.getElementById('_71_1080_Open_Image').style.display='inline'; document.getElementById('_71_1080_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif">public interface IStackLi <span id="_71_1080_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img id="_80_162_Open_Image" onclick="this.style.display='none'; document.getElementById('_80_162_Open_Text').style.display='none'; document.getElementById('_80_162_Closed_Image').style.display='inline'; document.getElementById('_80_162_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_80_162_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_80_162_Closed_Text').style.display='none'; document.getElementById('_80_162_Open_Image').style.display='inline'; document.getElementById('_80_162_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> <span id="_80_162_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">/** *//** <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * Get the size of the stack <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * @return size of the stack <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> */ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> public int getSize(); <img id="_199_283_Open_Image" onclick="this.style.display='none'; document.getElementById('_199_283_Open_Text').style.display='none'; document.getElementById('_199_283_Closed_Image').style.display='inline'; document.getElementById('_199_283_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_199_283_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_199_283_Closed_Text').style.display='none'; document.getElementById('_199_283_Open_Image').style.display='inline'; document.getElementById('_199_283_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> <span id="_199_283_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">/** *//** <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * Judge that if the stack is full <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * @return true or false <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> */ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> public boolean isFull(); <img id="_323_408_Open_Image" onclick="this.style.display='none'; document.getElementById('_323_408_Open_Text').style.display='none'; document.getElementById('_323_408_Closed_Image').style.display='inline'; document.getElementById('_323_408_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_323_408_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_323_408_Closed_Text').style.display='none'; document.getElementById('_323_408_Open_Image').style.display='inline'; document.getElementById('_323_408_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> <span id="_323_408_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">/** *//** <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * Judge that if the stack is empty <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * @return true or false <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> */ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> public boolean isEmpty(); <img id="_449_496_Open_Image" onclick="this.style.display='none'; document.getElementById('_449_496_Open_Text').style.display='none'; document.getElementById('_449_496_Closed_Image').style.display='inline'; document.getElementById('_449_496_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_449_496_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_449_496_Closed_Text').style.display='none'; document.getElementById('_449_496_Open_Image').style.display='inline'; document.getElementById('_449_496_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> <span id="_449_496_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">/** *//** <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * Set the stack to be empty <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> */ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> public void makeEmpty(); <img id="_536_706_Open_Image" onclick="this.style.display='none'; document.getElementById('_536_706_Open_Text').style.display='none'; document.getElementById('_536_706_Closed_Image').style.display='inline'; document.getElementById('_536_706_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_536_706_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_536_706_Closed_Text').style.display='none'; document.getElementById('_536_706_Open_Image').style.display='inline'; document.getElementById('_536_706_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> <span id="_536_706_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">/** *//** <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * Push a element x into stack, if the operation is right then return true, <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * else return false <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * @param x <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * @return true or false <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> */ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> public boolean push(Object x); <img id="_752_842_Open_Image" onclick="this.style.display='none'; document.getElementById('_752_842_Open_Text').style.display='none'; document.getElementById('_752_842_Closed_Image').style.display='inline'; document.getElementById('_752_842_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_752_842_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_752_842_Closed_Text').style.display='none'; document.getElementById('_752_842_Open_Image').style.display='inline'; document.getElementById('_752_842_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> <span id="_752_842_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">/** *//** <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * return the top element of the stack <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * @return the top element <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> */ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> public Object top(); <img id="_878_1039_Open_Image" onclick="this.style.display='none'; document.getElementById('_878_1039_Open_Text').style.display='none'; document.getElementById('_878_1039_Closed_Image').style.display='inline'; document.getElementById('_878_1039_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_878_1039_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_878_1039_Closed_Text').style.display='none'; document.getElementById('_878_1039_Open_Image').style.display='inline'; document.getElementById('_878_1039_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> <span id="_878_1039_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">/** *//** <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * Pop the top element from the stack, if the operation is right, then return <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * true, else return false <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> * @return true or false <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> */ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> public boolean pop(); <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif">} <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif"></div></div>
2，栈的实现
[java] view plaincopy
1. <div style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 5.4pt; BACKGROUND: #e6e6e6; PADDING-BOTTOM: 4px; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 95%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: windowtext 0.5pt solid"><div><img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif">package pku.ss.datastructure.StackLi; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif">import pku.ss.datastructure.IStackLi.IStackLi; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif"> <img id="_138_1751_Open_Image" onclick="this.style.display='none'; document.getElementById('_138_1751_Open_Text').style.display='none'; document.getElementById('_138_1751_Closed_Image').style.display='inline'; document.getElementById('_138_1751_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif"><img id="_138_1751_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_138_1751_Closed_Text').style.display='none'; document.getElementById('_138_1751_Open_Image').style.display='inline'; document.getElementById('_138_1751_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif">public class StackLi implements IStackLi <span id="_138_1751_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> private int maxSize; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> private int size; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> private ListNode topOfStack; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img id="_267_362_Open_Image" onclick="this.style.display='none'; document.getElementById('_267_362_Open_Text').style.display='none'; document.getElementById('_267_362_Closed_Image').style.display='inline'; document.getElementById('_267_362_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_267_362_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_267_362_Closed_Text').style.display='none'; document.getElementById('_267_362_Open_Image').style.display='inline'; document.getElementById('_267_362_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> public StackLi(int maxSize) <span id="_267_362_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> this.maxSize = maxSize; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> size = 0; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> topOfStack = null; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> @Override <img id="_411_449_Open_Image" onclick="this.style.display='none'; document.getElementById('_411_449_Open_Text').style.display='none'; document.getElementById('_411_449_Closed_Image').style.display='inline'; document.getElementById('_411_449_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_411_449_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_411_449_Closed_Text').style.display='none'; document.getElementById('_411_449_Open_Image').style.display='inline'; document.getElementById('_411_449_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> public int getSize() <span id="_411_449_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> return this.size; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> @Override <img id="_502_540_Open_Image" onclick="this.style.display='none'; document.getElementById('_502_540_Open_Text').style.display='none'; document.getElementById('_502_540_Closed_Image').style.display='inline'; document.getElementById('_502_540_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_502_540_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_502_540_Closed_Text').style.display='none'; document.getElementById('_502_540_Open_Image').style.display='inline'; document.getElementById('_502_540_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> public boolean isEmpty() <span id="_502_540_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> return size == 0; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> @Override <img id="_592_639_Open_Image" onclick="this.style.display='none'; document.getElementById('_592_639_Open_Text').style.display='none'; document.getElementById('_592_639_Closed_Image').style.display='inline'; document.getElementById('_592_639_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_592_639_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_592_639_Closed_Text').style.display='none'; document.getElementById('_592_639_Open_Image').style.display='inline'; document.getElementById('_592_639_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> public boolean isFull() <span id="_592_639_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> return size > maxSize - 1; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> @Override <img id="_691_751_Open_Image" onclick="this.style.display='none'; document.getElementById('_691_751_Open_Text').style.display='none'; document.getElementById('_691_751_Closed_Image').style.display='inline'; document.getElementById('_691_751_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_691_751_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_691_751_Closed_Text').style.display='none'; document.getElementById('_691_751_Open_Image').style.display='inline'; document.getElementById('_691_751_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> public void makeEmpty() <span id="_691_751_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> size = 0; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> topOfStack = null; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> @Override <img id="_800_1075_Open_Image" onclick="this.style.display='none'; document.getElementById('_800_1075_Open_Text').style.display='none'; document.getElementById('_800_1075_Closed_Image').style.display='inline'; document.getElementById('_800_1075_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_800_1075_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_800_1075_Closed_Text').style.display='none'; document.getElementById('_800_1075_Open_Image').style.display='inline'; document.getElementById('_800_1075_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> public boolean pop() <span id="_800_1075_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img id="_828_950_Open_Image" onclick="this.style.display='none'; document.getElementById('_828_950_Open_Text').style.display='none'; document.getElementById('_828_950_Closed_Image').style.display='inline'; document.getElementById('_828_950_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_828_950_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_828_950_Closed_Text').style.display='none'; document.getElementById('_828_950_Open_Image').style.display='inline'; document.getElementById('_828_950_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> if (isEmpty()) <span id="_828_950_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> System.out.println("[ERROR] Atempt to pop from a empty stack!"); <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> return false; <img id="_957_1066_Open_Image" onclick="this.style.display='none'; document.getElementById('_957_1066_Open_Text').style.display='none'; document.getElementById('_957_1066_Closed_Image').style.display='inline'; document.getElementById('_957_1066_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_957_1066_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_957_1066_Closed_Text').style.display='none'; document.getElementById('_957_1066_Open_Image').style.display='inline'; document.getElementById('_957_1066_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> } else <span id="_957_1066_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> topOfStack = topOfStack.next; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> size--; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> return true; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> @Override <img id="_1133_1483_Open_Image" onclick="this.style.display='none'; document.getElementById('_1133_1483_Open_Text').style.display='none'; document.getElementById('_1133_1483_Closed_Image').style.display='inline'; document.getElementById('_1133_1483_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_1133_1483_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_1133_1483_Closed_Text').style.display='none'; document.getElementById('_1133_1483_Open_Image').style.display='inline'; document.getElementById('_1133_1483_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> public boolean push(Object x) <span id="_1133_1483_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img id="_1160_1282_Open_Image" onclick="this.style.display='none'; document.getElementById('_1160_1282_Open_Text').style.display='none'; document.getElementById('_1160_1282_Closed_Image').style.display='inline'; document.getElementById('_1160_1282_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_1160_1282_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_1160_1282_Closed_Text').style.display='none'; document.getElementById('_1160_1282_Open_Image').style.display='inline'; document.getElementById('_1160_1282_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> if (isFull()) <span id="_1160_1282_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> System.out.println("[ERROR] Atempt to push into a full stack!"); <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> return false; <img id="_1289_1474_Open_Image" onclick="this.style.display='none'; document.getElementById('_1289_1474_Open_Text').style.display='none'; document.getElementById('_1289_1474_Closed_Image').style.display='inline'; document.getElementById('_1289_1474_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_1289_1474_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_1289_1474_Closed_Text').style.display='none'; document.getElementById('_1289_1474_Open_Image').style.display='inline'; document.getElementById('_1289_1474_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> } else <span id="_1289_1474_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> ListNode temp = new ListNode(x); <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> temp.next = topOfStack; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> topOfStack = temp; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> size++; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> return true; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> @Override <img id="_1531_1743_Open_Image" onclick="this.style.display='none'; document.getElementById('_1531_1743_Open_Text').style.display='none'; document.getElementById('_1531_1743_Closed_Image').style.display='inline'; document.getElementById('_1531_1743_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_1531_1743_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_1531_1743_Closed_Text').style.display='none'; document.getElementById('_1531_1743_Open_Image').style.display='inline'; document.getElementById('_1531_1743_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> public Object top() <span id="_1531_1743_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img id="_1559_1696_Open_Image" onclick="this.style.display='none'; document.getElementById('_1559_1696_Open_Text').style.display='none'; document.getElementById('_1559_1696_Closed_Image').style.display='inline'; document.getElementById('_1559_1696_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_1559_1696_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_1559_1696_Closed_Text').style.display='none'; document.getElementById('_1559_1696_Open_Image').style.display='inline'; document.getElementById('_1559_1696_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> if (isEmpty()) <span id="_1559_1696_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> System.out.println("[ERROR] Atempt to get the top element from a empty stack!"); <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> return null; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> return topOfStack.element; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif">} <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif"></div></div>
3，节点类型
[java] view plaincopy
1. <div style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 5.4pt; BACKGROUND: #e6e6e6; PADDING-BOTTOM: 4px; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 95%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: windowtext 0.5pt solid"><div><img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif">package pku.ss.datastructure.StackLi; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif"> <img id="_66_350_Open_Image" onclick="this.style.display='none'; document.getElementById('_66_350_Open_Text').style.display='none'; document.getElementById('_66_350_Closed_Image').style.display='inline'; document.getElementById('_66_350_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif"><img id="_66_350_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_66_350_Closed_Text').style.display='none'; document.getElementById('_66_350_Open_Image').style.display='inline'; document.getElementById('_66_350_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif">public class ListNode <span id="_66_350_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img id="_103_147_Open_Image" onclick="this.style.display='none'; document.getElementById('_103_147_Open_Text').style.display='none'; document.getElementById('_103_147_Closed_Image').style.display='inline'; document.getElementById('_103_147_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_103_147_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_103_147_Closed_Text').style.display='none'; document.getElementById('_103_147_Open_Image').style.display='inline'; document.getElementById('_103_147_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> ListNode(Object theElement) <span id="_103_147_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> this(theElement, null); <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img id="_203_270_Open_Image" onclick="this.style.display='none'; document.getElementById('_203_270_Open_Text').style.display='none'; document.getElementById('_203_270_Closed_Image').style.display='inline'; document.getElementById('_203_270_Closed_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif"><img id="_203_270_Closed_Image" style="DISPLAY: none" onclick="this.style.display='none'; document.getElementById('_203_270_Closed_Text').style.display='none'; document.getElementById('_203_270_Open_Image').style.display='inline'; document.getElementById('_203_270_Open_Text').style.display='inline';" align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif"> ListNode(Object theElement, ListNode aNext) <span id="_203_270_Closed_Text" style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff">...{ <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> element = theElement; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> next = aNext; <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif"> } <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> Object element; //节点中的元素 <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif"> ListNode next; //指向下一个节点 <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif">} <img align="top" alt="" src="http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif"></div></div>
4，测试类
package pku.ss.datastructure.Demo;

import pku.ss.datastructure.StackLi.StackLi;

public class StackLiDemo {

 /**
 * @param args
 */
 public static void main(String[] args) {
 // TODO Auto-generated method stub
 StackLi stack = new StackLi(5);
 stack.push("A");
 stack.push("B");
 stack.push("C");
 stack.push("D");
 stack.push("E");
 stack.push("F");
 stack.push("G");
 stack.push("H");
 System.out.println("**********************");

 System.out.println("The size of the stack is: " + stack.getSize());

 System.out.println("**********************");
 System.out.println("The top element of the stack is: " + stack.top());

 System.out.println("**********************");
 stack.makeEmpty();
 System.out.println("The top element of the stack is: " + stack.top());

 System.out.println("**********************");

 System.out.println("The size of the stack is: " + stack.getSize());
 }

}

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