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。 gUoL8~
插入排序: O~r.sJ}
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package org.rut.util.algorithm.support; Wm5/>Cu,
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import org.rut.util.algorithm.SortUtil; vsjl8L
/** O>=D1no*
* @author treeroot *}t,:N;i
* @since 2006-2-2 -N')LY
* @version 1.0 l>i<J1
*/ QsaaA
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public class InsertSort implements SortUtil.Sort{ i#@3\&{J>
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/* (non-Javadoc) Y6|8;2E
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ]#C;)Vy
*/ Vp;^_,
public void sort(int[] data) { f?iQ0wv)
int temp; | %Dh
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); uqhNi!;
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冒泡排序: !,mv 7Yj
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package org.rut.util.algorithm.support; u0;FQr2
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import org.rut.util.algorithm.SortUtil; Y5}<7s\UDO
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/** 1!@KRV
* @author treeroot S$!)Uc\)A
* @since 2006-2-2 ;NrN#<j(!
* @version 1.0 8+Y+\XZG
*/ AwhXCq|k
public class BubbleSort implements SortUtil.Sort{ `7|\Gqy
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/* (non-Javadoc) \BT 8-}
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZiBTe,;
*/ K<HF!YU#I2
public void sort(int[] data) { \X5>HPB
int temp; Nw`}iR0i
for(int i=0;i for(int j=data.length-1;j>i;j--){ : QK )Ym
if(data[j] SortUtil.swap(data,j,j-1); qwlIz/j
} }c>[m,lz
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} /( /)nYAjk
} -q9`Btz
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选择排序: -r9G5Z!|n
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package org.rut.util.algorithm.support; F2/-Wk@
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import org.rut.util.algorithm.SortUtil; w l.#{@J]<
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/** L:HJ:
* @author treeroot U"} ml
* @since 2006-2-2 r Bv
* @version 1.0 CU3[{a
*/ 5*=a*nD11
public class SelectionSort implements SortUtil.Sort { T{1Z(M+
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/* y{~l&zrl
* (non-Javadoc) ~/hyf] *j
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V+/Vk1
*/ ^<0u~u)%T
public void sort(int[] data) { CwKo'PAJ
int temp; zG_e=
for (int i = 0; i < data.length; i++) { fL9R{=I%
int lowIndex = i; '&/"_
for (int j = data.length - 1; j > i; j--) { (>THN*i
if (data[j] < data[lowIndex]) { Sb=cWn P
lowIndex = j; Fg8i}
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} q' };.tv
} |Uz?i7z
SortUtil.swap(data,i,lowIndex); P
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Shell排序: qGtXReK
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package org.rut.util.algorithm.support; eW$G1h:
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import org.rut.util.algorithm.SortUtil; ,Mf@I5?
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/** 9Ny{2m=Ye
* @author treeroot [4:_6vd7X
* @since 2006-2-2 V#;6<H"
* @version 1.0 H
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*/ HFD5*Z~M
public class ShellSort implements SortUtil.Sort{ c yq]-B
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/* (non-Javadoc) .W{\wkn
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .d:sQ\k~=
*/ C<CE!|sfr
public void sort(int[] data) { k$nQY
for(int i=data.length/2;i>2;i/=2){ @,i_
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for(int j=0;j insertSort(data,j,i); o/EA%q1
} 8UArl3
} FyN@mX
insertSort(data,0,1); pqPhtWi%PJ
} xXl^\?HC
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/** >&h#t7<
* @param data K29]B~0%E
* @param j 4C2J yP3
* @param i
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*/ [m7jZOEu
private void insertSort(int[] data, int start, int inc) { \HFeEEKH
int temp; *
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for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); M$L1!o1Xf
} ^ g`1SU`
} 7MreBs(M
} vKppXm1
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} :.B};;N
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快速排序: U@v=q9'W
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package org.rut.util.algorithm.support; '|n-w\
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import org.rut.util.algorithm.SortUtil; {.2A+JT,
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/** cCN[c)[c|
* @author treeroot L_uliBn
* @since 2006-2-2 O#Ab1FQn
* @version 1.0 1,fjdd8OM;
*/ IH?.s
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public class QuickSort implements SortUtil.Sort{ F,^Q'$!
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/* (non-Javadoc) ou6|;*>d
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) IbAGnl {
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public void sort(int[] data) { )`]w\s
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quickSort(data,0,data.length-1); (NUwkAOM}
} 3e$&rpv
private void quickSort(int[] data,int i,int j){ yjZxD[
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int pivotIndex=(i+j)/2; \3w=')({
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SortUtil.swap(data,pivotIndex,j); X"<t3l(+
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int k=partition(data,i-1,j,data[j]); 0hK)/!Y
SortUtil.swap(data,k,j); %^}3:0G
if((k-i)>1) quickSort(data,i,k-1); <N^2|*3
if((j-k)>1) quickSort(data,k+1,j); (u@p[ncN}
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} T%K"^4k
/** `V[{(&?,n
* @param data tv,iCV
* @param i u(\O
* @param j a2fV0d6*l
* @return +avu&2B
*/ rwr>43S5<3
private int partition(int[] data, int l, int r,int pivot) { _O~DJ"
do{ k0.|%0?K
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); dC;@ Fn
SortUtil.swap(data,l,r); E`.dU<8HE
} U}(*}Ut
while(l SortUtil.swap(data,l,r); 8)3g!3S
return l; g83]/s+
} lCg'K(|"
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} :a(er'A
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改进后的快速排序: [_ESR/&N
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package org.rut.util.algorithm.support; mjG-A8y
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import org.rut.util.algorithm.SortUtil; )2C`;\/:
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/** %gDMz7$~
* @author treeroot ($&i\e31N
* @since 2006-2-2 <hg t{b4
* @version 1.0 iqURlI);P
*/ ?)k;.<6
public class ImprovedQuickSort implements SortUtil.Sort { 0m_c43+^
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private static int MAX_STACK_SIZE=4096; )xIk#>)
private static int THRESHOLD=10; jD9^DzFx
/* (non-Javadoc) gy/z;fB
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) yU3fM?a
*/ uqPagt<
public void sort(int[] data) { S1NM9xHJ
int[] stack=new int[MAX_STACK_SIZE]; vFXih'=_
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