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。  Ffp<|2T2_   
插入排序: fKZgAISF  
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package org.rut.util.algorithm.support; 2DbM48\E  
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import org.rut.util.algorithm.SortUtil; vs~lyM/  
/** r 2L=gI  
* @author treeroot <<[hZ$.  
* @since 2006-2-2 'U'#_mYG  
* @version 1.0 wam-=3W  
*/ 86,$	I+  
public class InsertSort implements SortUtil.Sort{ uuMHD{}?}  
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/* (non-Javadoc) Vz,2_QJ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) hu+%	X.F4  
*/ lm;G8IP`  
public void sort(int[] data) { ~
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int temp; CAD:ifV  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 	X@n\~[.B  
} AE"E($S`  
}  L/R ES  
} @)YQiE$  
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} a\PvRW*I  
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冒泡排序: E5b	JIC(
  
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package org.rut.util.algorithm.support; +2+wNFU  
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import org.rut.util.algorithm.SortUtil; op%?V:  
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/** dnP3{!"b  
* @author treeroot on	q~wEr  
* @since 2006-2-2 cOr@dUSL  
* @version 1.0 SAEV "  
*/ 32sb$|eQq  
public class BubbleSort implements SortUtil.Sort{ KVrK:W--p  
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/* (non-Javadoc) `1[GY){?)  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) bu2'JIDR  
*/ t[ZumQ@HC  
public void sort(int[] data) { !F|iL  
int temp; k5@_8Rc  
for(int i=0;i for(int j=data.length-1;j>i;j--){ dIR6dI   
if(data[j] SortUtil.swap(data,j,j-1); =abth6#)  
} )*Qa9+:  
} d^w*!<8  
} :a4FO  
} F&	'HZX  
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} &Tf	R].  
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选择排序: 69v[*InSd  
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package org.rut.util.algorithm.support; 0+\~^  
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import org.rut.util.algorithm.SortUtil; ",ic"
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/** ZREAEGi{  
* @author treeroot H5N(MihT  
* @since 2006-2-2 dIo|i,-   
* @version 1.0 nAp7X-t  
*/ 4D/mm(2d$  
public class SelectionSort implements SortUtil.Sort { kPVP+}cA  
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/* swDSV1alMB  
* (non-Javadoc) 6L6 Lk   
*  Hf/2KYZ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lE54RX}e4  
*/ ?ExfxR!~  
public void sort(int[] data) { \\D~Yg\#  
int temp; A*h)p@3t<  
for (int i = 0; i < data.length; i++) { [^gSWU  
int lowIndex = i; bz~-uHC  
for (int j = data.length - 1; j > i; j--) { _l?5GLl_F$  
if (data[j] < data[lowIndex]) { f-\l<o(  
lowIndex = j; Zv=p0xH  
} ]'aGoR  
} -BV&u(  
SortUtil.swap(data,i,lowIndex); g(:y_EpmLH  
} B%Yb+M&K  
} #oYX0wvl  
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Shell排序: LwUvM  
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package org.rut.util.algorithm.support; MjU>qx::  
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import org.rut.util.algorithm.SortUtil; $gZ|=(y&r  
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/** ?<w	+{  
* @author treeroot _<.R \rX&  
* @since 2006-2-2 +V|]:{3W  
* @version 1.0 Y@.> eS  
*/ CRWO	R	pP  
public class ShellSort implements SortUtil.Sort{ LM _4.J  
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/* (non-Javadoc)  CSU> nIE0  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7k3":2:  
*/ g{$&j*Q9    
public void sort(int[] data) { >[xQUf,p  
for(int i=data.length/2;i>2;i/=2){ I{cn	,,8  
for(int j=0;j insertSort(data,j,i); ecf7g)+C  
} xDr
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} 1'_OM	h*;  
insertSort(data,0,1); t*Q12Q  
} fWm;cDM
H  
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/** y	i@61XI  
* @param data dl{3fldb  
* @param j L761m7J]B  
* @param i lQ+-g#`  
*/ >5	5/@+^  
private void insertSort(int[] data, int start, int inc) { Q)a*bPz  
int temp; *pasI.2s#  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); N=+Up\h  
} 1 *-58N*  
} n6o}$]H  
} 71 /6=aq>n  
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} sZ4H\   
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快速排序: <1jiU%!w  
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package org.rut.util.algorithm.support; 0\Oeo8<7)~  
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import org.rut.util.algorithm.SortUtil; gieX`}  
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/** *gT
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* @author treeroot n(o
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* @since 2006-2-2 orU4{.e  
* @version 1.0 1g/mzC	  
*/ Bv=Z*"Fv  
public class QuickSort implements SortUtil.Sort{ rfPJBD{Ve  
 *p WswcV/  
/* (non-Javadoc) !E7/:t4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Ta[}k/zW  
*/ @/7Rp8Fr  
public void sort(int[] data) { g*]<]%Py"  
quickSort(data,0,data.length-1);  N]=.I	  
} uPp(l4(+  
private void quickSort(int[] data,int i,int j){ ohh	1DsB  
int pivotIndex=(i+j)/2; OQsH,'  
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SortUtil.swap(data,pivotIndex,j); RZ.5:v6  
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int k=partition(data,i-1,j,data[j]); nEn2!)$  
SortUtil.swap(data,k,j); c&_3"2:  
if((k-i)>1) quickSort(data,i,k-1); "iydXV=Q  
if((j-k)>1) quickSort(data,k+1,j); vMI \$E&  
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} 3?}SXmA'@  
/** |F=^Cu,  
* @param data O>>8%=5Q  
* @param i yi%B5KF~Al  
* @param j uIPR*9~6o  
* @return p{U8z\  
*/ kdo)y(fn@  
private int partition(int[] data, int l, int r,int pivot) { FVpe*]  
do{ 7vWB=r>5@  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ><DE1tG  
SortUtil.swap(data,l,r); a[JgR /E@x  
} P~*fZ)\}F@  
while(l SortUtil.swap(data,l,r);  qj/P4 *6E  
return l; ~\_E%NR
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} :dj@i6  
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} }Ag2c; aaq  
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改进后的快速排序: s-DtkO
  
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package org.rut.util.algorithm.support; &S{F"z  
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import org.rut.util.algorithm.SortUtil; &KB{,:)?  
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/** c*W$wr  
* @author treeroot 5u8Sxfm",  
* @since 2006-2-2 }qg!Um0  
* @version 1.0 Tld{b  
*/ > w'6ZDA*X  
public class ImprovedQuickSort implements SortUtil.Sort { n#R!`*[   
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private static int MAX_STACK_SIZE=4096; Owr`ip\  
private static int THRESHOLD=10; G@;aqe[dB  
/* (non-Javadoc) p[$I{F*a  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +(<f(]bG  
*/ Nf~<xK  
public void sort(int[] data) { -Z@p	
  
int[] stack=new int[MAX_STACK_SIZE]; oa4}GNH  
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int top=-1; E0|aI4S4  
int pivot; 83n:	h08  
int pivotIndex,l,r; N$+"zJmw&