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。 fE8/tx](
插入排序: :%~+&qS
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package org.rut.util.algorithm.support; TU&gj1
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import org.rut.util.algorithm.SortUtil; O|}97a^
/** 8(&Jy RT
* @author treeroot icOh/G=N;
* @since 2006-2-2 =Wn11JGh
* @version 1.0 be}^}w=
*/ WgF
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public class InsertSort implements SortUtil.Sort{ T1.`*,t)=
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/* (non-Javadoc) $fR[zBxA
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) L&H4fy!>
*/ |f#~#Y2v
public void sort(int[] data) { CXwDG_e
int temp; 6lpfk&
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 7g^=
} <nOK#;O)
} ,IX:u1mO
} f$[6]7P
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} D7T(B=S6
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冒泡排序: why;1z>V
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package org.rut.util.algorithm.support; 4IuQQ
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import org.rut.util.algorithm.SortUtil; j?K]0j;
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/** f^z/s6I0
* @author treeroot S4508l
* @since 2006-2-2 YtI2Vr/9
* @version 1.0 7vax[,aI
*/ t`1E4$Bb\
public class BubbleSort implements SortUtil.Sort{ C%}}~Y
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/* (non-Javadoc) <1cYz\/!M
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *J&XM[t
*/ LT']3w
public void sort(int[] data) { l(
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int temp; 1$vsw
for(int i=0;i for(int j=data.length-1;j>i;j--){ dP}=cZ~
if(data[j] SortUtil.swap(data,j,j-1); KAH9?zI)M
} 2A'!kd$2
} U`Bw2Vdk]S
} Uv?s <
} Q$r1beA
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} u?6L.^Op
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选择排序: {U/a h2*
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package org.rut.util.algorithm.support; b.V\EOk
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import org.rut.util.algorithm.SortUtil; 3}V`]B#a
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/** uH 1%diL^
* @author treeroot f Glvx~
* @since 2006-2-2 Gu?OyL
* @version 1.0 %GG:F^X#
*/ t '
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public class SelectionSort implements SortUtil.Sort { p w(eWP
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/* HF>Gf2-C
* (non-Javadoc) =>Ss:SGjT
* Jv(9w[
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H=b54.J8&
*/ e}>8rnR{
public void sort(int[] data) { [ aC7
int temp; 8G@I e
for (int i = 0; i < data.length; i++) { ?\[2Po]n
int lowIndex = i; #'m&<g,
for (int j = data.length - 1; j > i; j--) { } m5AO 4:
if (data[j] < data[lowIndex]) { v%N/mL+5L
lowIndex = j; aD)XxXwozm
} )*<=:
} $h"Ht2/ J
SortUtil.swap(data,i,lowIndex); 1|/P[!u
} W3K&C[f
} aBv3vSq>Q
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} i
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Shell排序: ZuF"GNUC
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package org.rut.util.algorithm.support; Ws2SD6!4`
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import org.rut.util.algorithm.SortUtil; ,9jq
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/** *j9{+yO{ZE
* @author treeroot FgA'X<
* @since 2006-2-2 )c~1s
* @version 1.0 <k'JhMwN
*/ RW19I,d
public class ShellSort implements SortUtil.Sort{ `
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/* (non-Javadoc) m2&"}bI{
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'wh2787
*/ 5m2`$y-nb
public void sort(int[] data) { fT)u`voE,
for(int i=data.length/2;i>2;i/=2){ ia=eFWt.
for(int j=0;j insertSort(data,j,i); V^Gz7`^
} Th1/Bxb:
} 15PFnk6E|
insertSort(data,0,1); JBX#U@k>I
} {|)u).n|
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/** 9e^HTUFbG
* @param data $x_6
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* @param j _m3}0q
* @param i ch2Q k8
*/ H(f~B<7q
private void insertSort(int[] data, int start, int inc) { rzmd`)g
int temp; (pY'v/ a-
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); w#V{'{DKp
} nT
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} )nJo\HFXv
} % H"A%
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} <?|v-(E
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快速排序: YbS$D
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package org.rut.util.algorithm.support; A4!IbJD,0
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import org.rut.util.algorithm.SortUtil; )C>4?)
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/** )Rhy^<xH
* @author treeroot E+XpgR5
* @since 2006-2-2 8)I,WWj
* @version 1.0 UuDT=_1Sh
*/ m(Hb! RT
public class QuickSort implements SortUtil.Sort{ ( `V
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/* (non-Javadoc) kaSi sjd
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @
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*/ h4@v.GI
public void sort(int[] data) { CE :x;!}cd
quickSort(data,0,data.length-1); Co e
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private void quickSort(int[] data,int i,int j){ a%3V<
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int pivotIndex=(i+j)/2; L`"PaIMz
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SortUtil.swap(data,pivotIndex,j); "zU}]|R
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int k=partition(data,i-1,j,data[j]); HK~uu5j
SortUtil.swap(data,k,j); <hG=0Zc r
if((k-i)>1) quickSort(data,i,k-1); &V.ps1
if((j-k)>1) quickSort(data,k+1,j); F_8<
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} 8J60+2Wa
/** #ma#oWqF }
* @param data +h!OdWD9
* @param i jVh I`F{n
* @param j {/f\lS.5g
* @return FmU>q)
*/ 8u+FWbOl]
private int partition(int[] data, int l, int r,int pivot) { B o@B9/ABv
do{ }1EfyR
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); REd"}zDI
SortUtil.swap(data,l,r); ?QzA;8H
} Z#8O)GK
while(l SortUtil.swap(data,l,r); YyI4T/0s_
return l; ZY%]F,Y
} ,,*i!%Adw
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} T<!&6,N A
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改进后的快速排序: dWC[p
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package org.rut.util.algorithm.support; 3:q\]]]S
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import org.rut.util.algorithm.SortUtil; PFP/Pe Ng;
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/** 5o2W[<