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。 n^<J@uC
插入排序: bpa'`sf
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package org.rut.util.algorithm.support; kpMo7n
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import org.rut.util.algorithm.SortUtil; Ged} qXn
/** EIF
* @author treeroot /Eu|Jg=I
* @since 2006-2-2 ^JGwCHeb|H
* @version 1.0 /)sP<WPQ6
*/ i"mQ
public class InsertSort implements SortUtil.Sort{ 7@&kPh}PG
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/* (non-Javadoc) orAr3`AR3
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `chD*@76I
*/ L0Ajj=
public void sort(int[] data) { 1!
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int temp; %zO>]f&
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); onm"7JsO'
} /h@3R[k
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冒泡排序: ^-F#"i|Cn
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package org.rut.util.algorithm.support; @h(Z;
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import org.rut.util.algorithm.SortUtil; f/"IC;<~t>
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/** 2 ]n4)vv,
* @author treeroot +`!>lo{X
* @since 2006-2-2 j|{
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* @version 1.0 Qx&7Ceu"
*/ mZ.gS1Dq
public class BubbleSort implements SortUtil.Sort{ *;Za))
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/* (non-Javadoc) dJ>tM'G
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "BIhd*K[~
*/ +jO#?J
public void sort(int[] data) { ! vuun |
int temp; o\fPZ`p-m~
for(int i=0;i for(int j=data.length-1;j>i;j--){ e}(8BF
if(data[j] SortUtil.swap(data,j,j-1); )k]{FM
} ! 6R|
} k#Qjm9V
} h?vny->uJ
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选择排序: 09i77
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package org.rut.util.algorithm.support; 8C*xrg#g:
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import org.rut.util.algorithm.SortUtil; 5C9
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/** olm'_{{
* @author treeroot ZgmK~iJ
* @since 2006-2-2 |)mUO:*
* @version 1.0 XW+-E^d
*/ X|L_}Q7
public class SelectionSort implements SortUtil.Sort { fw|t`mUGu
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/* 5i'KGL
* (non-Javadoc) "2 D{X
* h;mOfF
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) '-#gQxIpD
*/ *z]P|_:&G
public void sort(int[] data) { hl2|Ec
int temp; @KJmNM1]V
for (int i = 0; i < data.length; i++) {
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int lowIndex = i; X5= Ki
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for (int j = data.length - 1; j > i; j--) { [C!m,4
if (data[j] < data[lowIndex]) { e~nh95
lowIndex = j; I<"UQ\)
} iZ0(a
} :Ye~I;"8
SortUtil.swap(data,i,lowIndex); !e~d,NIy
} aHPx'R
} Y5*A,piq
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} dvglh?7d
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Shell排序: QaXdO=3
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package org.rut.util.algorithm.support; N9vNSmm
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import org.rut.util.algorithm.SortUtil; )ri'W
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/** r
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* @author treeroot COD^osM@
* @since 2006-2-2 2\gbciJ[{(
* @version 1.0 (~(FQ:L%U
*/ swMR+F#u*
public class ShellSort implements SortUtil.Sort{ S<5.}c R
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/* (non-Javadoc) "o@R}_4]q
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -*2b/=$u
*/ 3Qp6$m
public void sort(int[] data) { c~6ywuq+M`
for(int i=data.length/2;i>2;i/=2){ {@s6ly].
for(int j=0;j insertSort(data,j,i); $>Gf;k
} [3qJUJM
} >f;oY9 {m
insertSort(data,0,1); lxBcO/
} |r4&@)
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/** VotI5O $
* @param data \;+b1
* @param j 8:]5H}Hi
* @param i lg@q}
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*/ 5^Lbc.h
private void insertSort(int[] data, int start, int inc) { ]agdVr^
int temp; k;.<DN
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); UYpln[S
} VD{_6
} SQk5SP
} z] |Y
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} 'NnmLM(oh
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快速排序: !DKl:8mx4
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package org.rut.util.algorithm.support; =g=Vv"B_
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import org.rut.util.algorithm.SortUtil; _$v$v$74^
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/** xCMuq9zt@
* @author treeroot C+gu'hD
* @since 2006-2-2 1i Q(q\%
* @version 1.0 5zt5]zl'
*/ l_2YPon
public class QuickSort implements SortUtil.Sort{ h5))D!
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/* (non-Javadoc) y|WOw(#
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) CS"p3$7,
*/ P?y{9H*
public void sort(int[] data) { S_Vquw(+
quickSort(data,0,data.length-1); eh3CVgH91;
} -AKbXkc~\
private void quickSort(int[] data,int i,int j){ o7g6*hJz
int pivotIndex=(i+j)/2; ?\a';@h
file://swap ,Nev7X[0
SortUtil.swap(data,pivotIndex,j); {1GIiP-U
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int k=partition(data,i-1,j,data[j]); u?8e>a
SortUtil.swap(data,k,j); puGy`9eKv1
if((k-i)>1) quickSort(data,i,k-1); G""=`@
if((j-k)>1) quickSort(data,k+1,j); iEMIzaR
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} 3[To"You
/** KYFkO~N
* @param data zrur-i$N+
* @param i P"c7h7
* @param j d.NB@[?*
* @return _\FA}d@N
*/ y;HJ"5.Mw
private int partition(int[] data, int l, int r,int pivot) { 4$v08zZ
do{ `Y7&}/OM
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); +]{PEnJ
SortUtil.swap(data,l,r); Rs 0Gqx
} .eDI ZX
while(l SortUtil.swap(data,l,r); &E!-~'|z
return l; B 6,X)
} p5=VGKp
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} 5W?r04
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改进后的快速排序: %MN>b[z
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package org.rut.util.algorithm.support; 2 lBu"R 6}
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import org.rut.util.algorithm.SortUtil; mg4:N
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/** ekuRGG
* @author treeroot !rgdOlTR ^
* @since 2006-2-2 m2Q#ATLW
* @version 1.0 ,vUMy&AV
*/ n!\&X9%[8
public class ImprovedQuickSort implements SortUtil.Sort { i52:<<