用Java语言实现的各种排序,包括插入排序、冒泡排序、选择排序、Shell排序、快速排序、归并排序、堆排序、SortUtil等。 $DebXxJw0l
插入排序: pu9^e4B9
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package org.rut.util.algorithm.support; hJ*Ihwn|
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import org.rut.util.algorithm.SortUtil; :,S98z#
/** #HAC*n
* @author treeroot 9b"MQ[B4#a
* @since 2006-2-2 yNCEz/4
* @version 1.0 RWKH%C[Yd
*/ BRS#Fl:
public class InsertSort implements SortUtil.Sort{ wL}l`fRB
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/* (non-Javadoc) -Z0+oU(?YE
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,LhCFw{8?~
*/ < zOi4v0
public void sort(int[] data) { Kj3?ve~
int temp; ?o*I9[Z)
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 9\JQ7$B
} {"S6\%=
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}
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冒泡排序: k@dN$O%p
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package org.rut.util.algorithm.support; Gl}Qxv#$
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import org.rut.util.algorithm.SortUtil; B<?wh0
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/** p-GAe,2q
* @author treeroot Q~{H@D`<
* @since 2006-2-2 YW/QC'_iC
* @version 1.0 O%8 EZyu
*/ n>>Qn&ym
public class BubbleSort implements SortUtil.Sort{ -n 80&
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/* (non-Javadoc) Ho;X4lo[j
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "A$!,
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*/ G<|8?6bq#
public void sort(int[] data) { c yyVg!+
int temp; )3Z ^h<"j
for(int i=0;i for(int j=data.length-1;j>i;j--){ 9h4({EE2t
if(data[j] SortUtil.swap(data,j,j-1); `-h8vj5uG
} *z*uEcitW
} wMqX)}>
} 2;a(8^n
} },+wJ1
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} i.D3'l
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选择排序: npJt3
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package org.rut.util.algorithm.support; .sC?7O=
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import org.rut.util.algorithm.SortUtil; m< _S_c
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/** 6KpHnSW
* @author treeroot 8V^oP]Y
* @since 2006-2-2 ={K`4BD
* @version 1.0 EQ'V{PIfj
*/ x=ul&|^7D
public class SelectionSort implements SortUtil.Sort { wr[,
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/* QFYWA1<pDh
* (non-Javadoc) CC#;c1t
* \jOA+FU[
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 8GvJ0Jq}U
*/ 0 stc9_O
public void sort(int[] data) { -FU}pz/
int temp; GB$;n?
for (int i = 0; i < data.length; i++) { IiY/(N+J
int lowIndex = i; C(00<~JC
for (int j = data.length - 1; j > i; j--) { b0lq\9
if (data[j] < data[lowIndex]) { +=O5YR!{
lowIndex = j; ?VP8ycm
} j#cYS*^H
} c-B
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SortUtil.swap(data,i,lowIndex); NR`C(^}
} ^J$2?!~
} |&RU/ a
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Shell排序: :]\([Q+a
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package org.rut.util.algorithm.support; 3j\1S1
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import org.rut.util.algorithm.SortUtil; |S_eDjF
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/** Qk:Y2mL
* @author treeroot 8fl`r~bqZ
* @since 2006-2-2 ZrsBm_Rx
* @version 1.0
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*/ "N`[r iq{
public class ShellSort implements SortUtil.Sort{ kqFP)!37
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/* (non-Javadoc) G3Z)Z)N
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %J+E/
*/ KrQ1GepJ
public void sort(int[] data) { #1OOU
for(int i=data.length/2;i>2;i/=2){ SLa>7`<Q
for(int j=0;j insertSort(data,j,i); <g$~1fa
} U|jSa,}
} 4 o Fel.o
insertSort(data,0,1); h&KO<>
} j0oR)du
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/** sB7#
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* @param data Zy`m!]G]80
* @param j h2G$@8t}I
* @param i Q+[n91ey**
*/ :tV*7S=)
private void insertSort(int[] data, int start, int inc) { x(1:s|Uyp{
int temp; Fld=5B^}
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); AE[b},-[
} JRB9rSN^
} LRL,m_gt
} }\B><E{G
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} 0Tx6zO
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快速排序: Q'=x|K#xj
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package org.rut.util.algorithm.support; X%
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import org.rut.util.algorithm.SortUtil; F3On?x)
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/** $a.JSXyxL
* @author treeroot h9}+l
* @since 2006-2-2 Hj^1or3R]
* @version 1.0 ]Sf]J4eQ
*/ -t!~%_WCv
public class QuickSort implements SortUtil.Sort{ 'jWr<]3
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/* (non-Javadoc) J')o|5S1N
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~vm%6CABM
*/ Z^3rLCa
public void sort(int[] data) { m*&]!mM"0G
quickSort(data,0,data.length-1); o#3ly-ht
} ; ZA~p
private void quickSort(int[] data,int i,int j){ d,k!qjf=r
int pivotIndex=(i+j)/2; T(id^ w
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SortUtil.swap(data,pivotIndex,j); P3x8UR=fS
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int k=partition(data,i-1,j,data[j]); "L IF.)
SortUtil.swap(data,k,j); 9ijfRqI=x
if((k-i)>1) quickSort(data,i,k-1); 3lrT3a3vV
if((j-k)>1) quickSort(data,k+1,j); 11Q1AN
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} 8\&X2[oAD
/** XO.jl" xu
* @param data slCx w$
* @param i *#,7d"6W5
* @param j n(1l}TJy
* @return @LF,O}[2J
*/ R0KPZv-
private int partition(int[] data, int l, int r,int pivot) { ?gA 8x
do{ )|ju~qbf
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); P)Jgs
SortUtil.swap(data,l,r); ` Fa~
} kMIcK4.MH
while(l SortUtil.swap(data,l,r); q+yQwX{
return l; f\|w'
} n@<YI
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改进后的快速排序: ?+))}J5N\
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package org.rut.util.algorithm.support; g];!&R-
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import org.rut.util.algorithm.SortUtil; l!D}3jD
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/** zfJT,h-{
* @author treeroot b6,iZ+]
* @since 2006-2-2 Z@4Arfl
* @version 1.0 `'DmDg
*/ 5AFJC?
public class ImprovedQuickSort implements SortUtil.Sort { is?{MJZ_
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private static int MAX_STACK_SIZE=4096; \"7*{L:
private static int THRESHOLD=10; g9
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