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。 U[|5:qWs
插入排序: E
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package org.rut.util.algorithm.support; Y<u%J#'[
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import org.rut.util.algorithm.SortUtil; t$%<eF@w
/** }^0'IAXi
* @author treeroot %#rtNDi
* @since 2006-2-2 8'L:D
* @version 1.0 |!9xL*A
*/ bS2g4]$'po
public class InsertSort implements SortUtil.Sort{ {lH'T1^m
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/* (non-Javadoc) &6C]|13;
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tq~4W% p/
*/ l^}u S|c(
public void sort(int[] data) { )c&ya|h
int temp; 6)ibXbH
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 6u #eLs
} 1U#W=Fg'
} d,N6~?B
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冒泡排序: as]M%|/-I
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package org.rut.util.algorithm.support; z,$uIv}'@
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import org.rut.util.algorithm.SortUtil; @--"u_[
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/** 7Y[ q)lv
* @author treeroot [ i,[^
* @since 2006-2-2 LdH1sHy*d`
* @version 1.0 )I3E
*/ |9%~z0
public class BubbleSort implements SortUtil.Sort{ {q`8+$Z;
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/* (non-Javadoc) &gruYZGK
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p\6}<b"p
*/ b9vudr
public void sort(int[] data) { oA[`|
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int temp; :0Jn`Ds4o
for(int i=0;i for(int j=data.length-1;j>i;j--){
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if(data[j] SortUtil.swap(data,j,j-1); X4S|JT
} \Db;7wh
} oNe:<YT
} U`=r.>
} j@(S7=^C6%
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} NZv 8#
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选择排序: U5N |2
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package org.rut.util.algorithm.support; k^8;3#xG
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import org.rut.util.algorithm.SortUtil; r<1W.xd":
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/** +58^{_k+%
* @author treeroot .<>t2,Af
* @since 2006-2-2 ;"Qq/knVL
* @version 1.0 _g/d/{-{Q
*/ >*gf1"
public class SelectionSort implements SortUtil.Sort { SF*mY=1
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/* YToG'#qs
* (non-Javadoc) d*Su
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* /nA>ox78
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) F/lL1nTdK
*/ CHv
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public void sort(int[] data) { FT~c|ep.
int temp; M !"Q7>d
for (int i = 0; i < data.length; i++) { mfI[9G
int lowIndex = i; Bf00&PE;
for (int j = data.length - 1; j > i; j--) { 2= ;ZJ
if (data[j] < data[lowIndex]) { u`Nrg<
lowIndex = j; ";(m,if-
} qXq#A&
} nbP}a?XC
SortUtil.swap(data,i,lowIndex); :KvZP:T
} &$CyT6mb^
} cJq{;~
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} @q<h.#9
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Shell排序: }0E@eL
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package org.rut.util.algorithm.support; U&B(uk(2
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import org.rut.util.algorithm.SortUtil; hl**G4z9q
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/** A@lM=
* @author treeroot jWxa
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* @since 2006-2-2 7mi*#X}
* @version 1.0 W%ix|R^2]
*/ g~K-'Nw
public class ShellSort implements SortUtil.Sort{ mD +9/O!
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/* (non-Javadoc) /rD9)
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) bHSoQ \
*/ 9<CUm"%J
public void sort(int[] data) { '!Va9m*w7
for(int i=data.length/2;i>2;i/=2){ B
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for(int j=0;j insertSort(data,j,i); n~`jUML2d
} oSMIWwg7G
} ZUB]qzmK
insertSort(data,0,1); N|>MqH,Bt
} <LBCu;
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/** Bt:M^b^
* @param data rM~Mqpk
* @param j NPBOG1q%
* @param i +gndW
*/ C|FI4/-e
private void insertSort(int[] data, int start, int inc) { M-QQ
int temp; b9.7j!W
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); u8A,f}D 3
} 8[^b8^
} E]a,2{&8<
} l3MA&&++KF
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} Sb?v5
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快速排序: ?j!/Hc/b4
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package org.rut.util.algorithm.support; I
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import org.rut.util.algorithm.SortUtil; Us&~d"n
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/** 'g)5vI~'
* @author treeroot 25xt*30M
* @since 2006-2-2 #CeWk$)m
* @version 1.0 Pvkr$ou
*/ \3U.;}0_X
public class QuickSort implements SortUtil.Sort{ [e. `M{(TB
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/* (non-Javadoc) \"K:<+RH
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `a7b,d
*/ K^AIqL8
public void sort(int[] data) { O'~^wu.
quickSort(data,0,data.length-1); <3k9 y^0
} \@6w;tyi
private void quickSort(int[] data,int i,int j){ B$97"$#u
int pivotIndex=(i+j)/2; !qs~j=;y3
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SortUtil.swap(data,pivotIndex,j); G
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int k=partition(data,i-1,j,data[j]); ![%:X)?
SortUtil.swap(data,k,j); 14-uy.0[
if((k-i)>1) quickSort(data,i,k-1); @DR?^
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if((j-k)>1) quickSort(data,k+1,j); It'PWqZtG
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} y7R{6W_U>
/** ?y* yl
* @param data Z
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* @param i Y#-pK)EeU
* @param j U3>ES"N
* @return .a]av
*/ '! ;Xxe5
private int partition(int[] data, int l, int r,int pivot) {
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do{ L{6Vi&I84[
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); R/c-sV
SortUtil.swap(data,l,r); Wzh#dO?7
} MIAC'_<-e
while(l SortUtil.swap(data,l,r); gAGcbepX
return l; <^A1.o<GN
} c30kb
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} G`jJKiC
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改进后的快速排序: [ 3SbWwg
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package org.rut.util.algorithm.support; YQfQ[{kp
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import org.rut.util.algorithm.SortUtil; ,n{|d33
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/** -v WXL
* @author treeroot `~W ?a
* @since 2006-2-2 &