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。 Vj!WaN_
插入排序: BW71 s
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package org.rut.util.algorithm.support; MFTC6L+T
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import org.rut.util.algorithm.SortUtil; od,tfLw4
/** p\+6"28{_~
* @author treeroot pF='jj51
* @since 2006-2-2 pbdF]>\
* @version 1.0 #`j][F@N
*/ t F/nah
public class InsertSort implements SortUtil.Sort{ .&(8(C
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/* (non-Javadoc) sV'v*
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |#cAsf_{
*/ 9cOx@c+/
public void sort(int[] data) { E$T(Qu<-
int temp; A\C'dZ <N
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 'bm:u
} IHVMHOq}'
} tw86:kYEz
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冒泡排序: ]Wy.R6
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package org.rut.util.algorithm.support; hfh.eL
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import org.rut.util.algorithm.SortUtil; s7|3zqi
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/** ni0LQuBp
* @author treeroot Y^5"qd|`
* @since 2006-2-2 x-4J/tm
* @version 1.0 LT(?#)D
*/ TMY{OI8 a
public class BubbleSort implements SortUtil.Sort{ >D3zV.R
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/* (non-Javadoc) (uT^Nn9L=
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4ac1m,Jlt
*/ ^yD"d =z
public void sort(int[] data) { &vkp?UH
int temp; f MzYFM'i
for(int i=0;i for(int j=data.length-1;j>i;j--){ y&3TQ]f\
if(data[j] SortUtil.swap(data,j,j-1); %/md"S
} kdd7Xbw-
} )(.%QSA\C
} X}?ESjZJ
} (NM6micc
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} 4)E|&)-fu8
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选择排序: PAr|1i)mB
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package org.rut.util.algorithm.support; RSFJu\0}N
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import org.rut.util.algorithm.SortUtil; Hz5;Ruw'
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/** Kv1vx*>
* @author treeroot <]c#)xg
* @since 2006-2-2 o6/Rx#A
* @version 1.0 .&L^J&V
*/ ^^'[%ok
public class SelectionSort implements SortUtil.Sort { 9Yd-m
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/* }`4K)(>4nG
* (non-Javadoc) ,NDxFy;d
* !rz)bd3$
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *se u&
*/ @n>{&^-c
public void sort(int[] data) { GA7u5D"0
int temp; (Q\\Gw
for (int i = 0; i < data.length; i++) { at=D&oy4"+
int lowIndex = i; ?U$}Rsk{#
for (int j = data.length - 1; j > i; j--) { .u&|e
if (data[j] < data[lowIndex]) { bt0djJRw
lowIndex = j; Gk{W:866
} V!H(;Tuuo
} ]}/mFY?7
SortUtil.swap(data,i,lowIndex); |o|gP8
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} n~9 i^
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Shell排序: BjwMb&a;
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package org.rut.util.algorithm.support; [Yn;G7cK
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import org.rut.util.algorithm.SortUtil; kz$(V(k<
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/** VVgsLQd
* @author treeroot t2Ip\>;9f
* @since 2006-2-2 *ZX!EjICk
* @version 1.0 OA!R5sOz"
*/ vP-3j
public class ShellSort implements SortUtil.Sort{ VPdwSW[eM
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/* (non-Javadoc) SHytyd
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q
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*/ *O!T!J
public void sort(int[] data) { >pN;J)H
for(int i=data.length/2;i>2;i/=2){ 7N!tp,?
for(int j=0;j insertSort(data,j,i); _w\Y{(k
} q"P5,:W
} _s2m-jm7
insertSort(data,0,1); {(_B
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/** C{DlcZ<
* @param data 9e0C3+)CY
* @param j .@fK;/OuC
* @param i Nvi Fq
*/ _E3U.mV
private void insertSort(int[] data, int start, int inc) { 0S%tsXt+
int temp; {qJHL;mP:8
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); mJSK; @w<O
} @Q/x&BV
} G`9cd\^
} \I'f3
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} ~*jsB=XM/
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快速排序: @X3 gBGY)
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package org.rut.util.algorithm.support; nXv 7OEpTx
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import org.rut.util.algorithm.SortUtil; lv=yz\
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/** I/oIcQS!k
* @author treeroot ~8XX3+]z:X
* @since 2006-2-2 hN Z4v/
* @version 1.0 vsu@PuqH
*/ AD~~e%
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public class QuickSort implements SortUtil.Sort{ 5{8x*PSl
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/* (non-Javadoc) :D<:N*9i
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 6F@zCv"w
*/ YtV |e|aD
public void sort(int[] data) { fG X1y
quickSort(data,0,data.length-1); \Oi5=,
} 1M7\:te*
private void quickSort(int[] data,int i,int j){ pg}~vb"
int pivotIndex=(i+j)/2; V?U%C%C|e
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SortUtil.swap(data,pivotIndex,j); yjGGqz$
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int k=partition(data,i-1,j,data[j]); A/ 7r:yO
SortUtil.swap(data,k,j); >{phyByI
if((k-i)>1) quickSort(data,i,k-1); %bCcsdK
if((j-k)>1) quickSort(data,k+1,j); %KbBH:z05
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} dE 3i=
/** *37LN
* @param data "bHtf_
* @param i ~AEqfIx*^&
* @param j L4\SBO
* @return ipx@pNW;"
*/ } l :mN
private int partition(int[] data, int l, int r,int pivot) { }2-[Ki yv
do{ z*Myokhf
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 9\AEyaJFZ
SortUtil.swap(data,l,r);
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} f o/
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while(l SortUtil.swap(data,l,r); yq/[ /*7^
return l; 7xLo4
} }9L 40)8
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} p_rN1W
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改进后的快速排序: %Nwyx;>9^K
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package org.rut.util.algorithm.support; n/KI"qa]9
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import org.rut.util.algorithm.SortUtil; &