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。 %<AS?Ry
插入排序: 8""mp]o9
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package org.rut.util.algorithm.support; 2kVp_=c
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import org.rut.util.algorithm.SortUtil; +aj^Cs1$
/** Dp`HeSKU^
* @author treeroot ?&xlT+JM
* @since 2006-2-2 6"+8M 3M l
* @version 1.0 Z(`r -}f I
*/ 9T?64t<Ju
public class InsertSort implements SortUtil.Sort{ !*_K.1'
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/* (non-Javadoc) '#<> "|
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ED/FlL{
*/ +sRP<as
public void sort(int[] data) { 4'm q_o#4W
int temp; ABZ06S/
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); p-Pz=Cx-
} hlC%HA
} x6%#wsvS
} ZV(
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冒泡排序: M~p=#V1D
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package org.rut.util.algorithm.support; sf)W~Lx5a
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import org.rut.util.algorithm.SortUtil; v?)SA];
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/** jA<T p}$!
* @author treeroot e9:P9Di(b
* @since 2006-2-2 S(w\Z C
* @version 1.0 wS%zWdsz
*/ u|OtKq
public class BubbleSort implements SortUtil.Sort{ Ia7D F'
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/* (non-Javadoc) N,|r1u 9X#
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7=3O^=Q^Q
*/ F.
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public void sort(int[] data) { 1.0J2nZpt
int temp; SQE`
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for(int i=0;i for(int j=data.length-1;j>i;j--){ K(OaW)j
if(data[j] SortUtil.swap(data,j,j-1); 4U{m7[
}
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} d1bhJK
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} -l[jEJS}
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} Nv3tt
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选择排序: R@n5AN(
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package org.rut.util.algorithm.support; |_nC6;
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import org.rut.util.algorithm.SortUtil; 4swKjN
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/** G#lg|# -#
* @author treeroot b{pg!/N4
* @since 2006-2-2 H+`*Y<F@
* @version 1.0 i| 4_m
*/ F`srE6H
public class SelectionSort implements SortUtil.Sort { TvM24Orct
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/* n$W"=Z;`
* (non-Javadoc) &CUC{t$VHX
* @d)LRw.I
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Tq#<Po $
*/ Mz\yPT;Y
public void sort(int[] data) {
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int temp; c'rd $
for (int i = 0; i < data.length; i++) { u~}%1
int lowIndex = i; Pgev) rh[
for (int j = data.length - 1; j > i; j--) { ~p^7X2% !
if (data[j] < data[lowIndex]) { _[JkJwPTx
lowIndex = j; ppFYc\&=
} Bk@WW#b
} <m1sSghg
SortUtil.swap(data,i,lowIndex); 1|/'"9v
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} ]#5^&w)'
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Shell排序: QT;Va#a
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package org.rut.util.algorithm.support; @>:i-5
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import org.rut.util.algorithm.SortUtil; I+~bCcgPi
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/** ~<eVl
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* @author treeroot Xl?YBZ}
* @since 2006-2-2 n$
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* @version 1.0 IXJ6PpQLv
*/ ^9'$Oa,*
public class ShellSort implements SortUtil.Sort{ M5 `m.n<
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/* (non-Javadoc) w%rg\E
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `oVB!eapl
*/ oXbI5XY)wb
public void sort(int[] data) { C
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for(int i=data.length/2;i>2;i/=2){ $`v+4]
for(int j=0;j insertSort(data,j,i); 0T0/fg(o
} 0 {,h.:
} uOFnCy 4
insertSort(data,0,1); )2]a8JVf
} /6jGt'^U
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/** ?rQc<;b
* @param data ZMe}M!V
* @param j z{' 6f@]
* @param i &M=3{[
*/ /ISLVp%H
private void insertSort(int[] data, int start, int inc) { lvx]jd\
int temp; )^";BVY
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); p_9g|B0D
} on_H6Y@B52
} i7(~>6@|
} q-H&5K
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} D>Ua#<52q
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快速排序: .8x@IWJD
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package org.rut.util.algorithm.support; MISE C[/
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import org.rut.util.algorithm.SortUtil; BtID;^Dz
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/** 5v+L';wx[T
* @author treeroot )gjGG8Ee
* @since 2006-2-2 N"K\ick6J
* @version 1.0 ", QPb3
*/ q#|r
public class QuickSort implements SortUtil.Sort{ XR<G}x
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/* (non-Javadoc) ^F&A6{9f/h
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^9s"FdB]24
*/ 4/f[`].#W
public void sort(int[] data) { ^H-QYuz:T0
quickSort(data,0,data.length-1); .5NZf4:C
} =nw0# '
private void quickSort(int[] data,int i,int j){ }I)z7l.
int pivotIndex=(i+j)/2; *.xZfi_|
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SortUtil.swap(data,pivotIndex,j); x~nQm]@`h
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int k=partition(data,i-1,j,data[j]); TRo4I{L6S
SortUtil.swap(data,k,j); zaBG=
if((k-i)>1) quickSort(data,i,k-1); P.!;Uf}32
if((j-k)>1) quickSort(data,k+1,j); xp(mB7;:
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} M",];h(I6(
/** K# /Ch5?
* @param data Mr#oT?
* @param i (N&k}CO]W
* @param j XCKY
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* @return *Pa2bY3:
*/ H9.oVF^~
private int partition(int[] data, int l, int r,int pivot) { f_^ix
do{ Z $ p^v*y
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); i!s~kk
SortUtil.swap(data,l,r); L3-<Kop
} 50}.Xm@,BO
while(l SortUtil.swap(data,l,r); p,3go[9X:R
return l; ^yzo!`)fso
} #L|JkBia
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} bxPY'&