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。 -I.d}[
插入排序: I,yC
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package org.rut.util.algorithm.support; ]hos+;4p
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import org.rut.util.algorithm.SortUtil; ":a\z(*t
/** U*3J+Y
* @author treeroot i4JqT \q
* @since 2006-2-2 Fz#X=gmG
* @version 1.0 +M'
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*/ _{<seA
public class InsertSort implements SortUtil.Sort{ /!h;c$
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/* (non-Javadoc) B"yFS7Rrj
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }}v9
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*/ 6AG`&'"
public void sort(int[] data) { WHXj8*]6
int temp; SZaS;hhhHu
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); [S5\#=_4S
} ljTBvU
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冒泡排序: Gx`L ks
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package org.rut.util.algorithm.support; Bn@(zHG+5&
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import org.rut.util.algorithm.SortUtil; <-D/O$q
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/** YIw1
* @author treeroot 9mA{K
* @since 2006-2-2 .X# `k
* @version 1.0 ^[:p|U2mA
*/ 1-lu\"H`
public class BubbleSort implements SortUtil.Sort{ ;r c`OZyE
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/* (non-Javadoc) M5gWD==uP
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -f*P
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*/ 7}M2bH} \K
public void sort(int[] data) { O
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int temp; $Y69@s %f
for(int i=0;i for(int j=data.length-1;j>i;j--){ ;)N>t\v
if(data[j] SortUtil.swap(data,j,j-1); wF((
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} 94B\5I}
} hzk cP
} 'yMF~r3J
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} /p8dZ+X
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选择排序: x)( |[
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package org.rut.util.algorithm.support; _/i4MtM
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import org.rut.util.algorithm.SortUtil; +v=C@2T
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/** j~!X;PV3
* @author treeroot ~l)-wNqR4r
* @since 2006-2-2 w.[ "p9tc
* @version 1.0 ;q*e=[_DF
*/ >0"+4<72
public class SelectionSort implements SortUtil.Sort { ^]TVo\,N
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/* <J^MCqp!v
* (non-Javadoc) %i5M77#Z
* Hy^N!rBxfO
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4^M
*/ N;\'N
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public void sort(int[] data) { AvfNwE
int temp; y&V@^"`
for (int i = 0; i < data.length; i++) { zAiXo__x
int lowIndex = i; rx] @A
for (int j = data.length - 1; j > i; j--) { Uu `9"
if (data[j] < data[lowIndex]) { Mnscb
lowIndex = j; gP;&e:/3
} Q)IKOt;N]
} xL\0B,]
SortUtil.swap(data,i,lowIndex); thI
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} $m/)FnU/
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Shell排序: }hhGu\
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package org.rut.util.algorithm.support; "g1)f"pL
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import org.rut.util.algorithm.SortUtil; c-(UhN3WG
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/** R^Y
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* @author treeroot ?.Ca|H<
* @since 2006-2-2 s+<Yg$)
* @version 1.0 i%0ur}p
*/ EwvoQ$#jv
public class ShellSort implements SortUtil.Sort{ g\&g N
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/* (non-Javadoc) AJF#Aw `o
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2Eu`u!jhx
*/ f=WDR m]
public void sort(int[] data) { 0"f\@8r(
for(int i=data.length/2;i>2;i/=2){ y~U #veY
for(int j=0;j insertSort(data,j,i); sM `DL
} x8V('` }j
} $xPaYf
insertSort(data,0,1); H"
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} ZZzMO6US0
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/** 5Ou`z5S\k
* @param data woK&q 7Vn
* @param j RO'7\xvn
* @param i 8~@c)Z;
*/ Na]:_K5Dp
private void insertSort(int[] data, int start, int inc) { Yp^rR }N
int temp; +[\FD; >
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); `T5W}p[6
} ]1#e#M]#
} Yfzl%wc
} ~E2KZm
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快速排序: qKr8)}h
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package org.rut.util.algorithm.support; + |n*b
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import org.rut.util.algorithm.SortUtil; l)1r+@)\
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/** f'EuY17w
* @author treeroot l3ko?k
* @since 2006-2-2 -z)n?(pftm
* @version 1.0 8c9*\S
*/ _x(o*v[Pt
public class QuickSort implements SortUtil.Sort{ __G?0*3 G
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/* (non-Javadoc) )<h*eS{
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) R6;=n"Ueb
*/ >4TaP*_
public void sort(int[] data) { K8GP@yD]M
quickSort(data,0,data.length-1); nxnv,AZG
} <7/R,\Wg~
private void quickSort(int[] data,int i,int j){ 7QiIiWqIWC
int pivotIndex=(i+j)/2; `ZyI!"
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SortUtil.swap(data,pivotIndex,j); e> e}vZlX
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int k=partition(data,i-1,j,data[j]); @tNz Q8
SortUtil.swap(data,k,j); k@ RDvn
if((k-i)>1) quickSort(data,i,k-1); 8]/bK5`
if((j-k)>1) quickSort(data,k+1,j); v3~? ;f,l
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} }ppN k:B
/** <Tzrj1"Q3
* @param data 5\:^y'g[
* @param i -*X a3/kQ
* @param j Z>:NPZODf
* @return Vc&!OE
*/ xr4*{v
private int partition(int[] data, int l, int r,int pivot) { 6t[+pL\b
do{ s>7}zU]
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); S9]'?|
SortUtil.swap(data,l,r); vWzm@
} ` Mjj@[
while(l SortUtil.swap(data,l,r); S"NqM[W
return l; I_}SB|
} CkOz
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改进后的快速排序: @\0ez<.p}
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package org.rut.util.algorithm.support; /?5 1D@
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import org.rut.util.algorithm.SortUtil; &Cr: