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。 eh5gjSqx
插入排序: W!&vul5
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package org.rut.util.algorithm.support; 6efnxxY}sa
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import org.rut.util.algorithm.SortUtil; v7`HQvQEz=
/** 1{r)L{]
* @author treeroot !dC<4qZ\C
* @since 2006-2-2 +@/"%9w
* @version 1.0 n .RhxgC<
*/ #*(td<Cp
public class InsertSort implements SortUtil.Sort{ A`}rqhU.{-
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/* (non-Javadoc) 4zo5}L`Y
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a)'5Nw9*
*/ 7[}xP#Z
public void sort(int[] data) { Os1>kwC
int temp; 7fba-7-P
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); '4#}e[e
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冒泡排序:
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package org.rut.util.algorithm.support; UaB @
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import org.rut.util.algorithm.SortUtil; k-{<=>uM
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/** +lMX{es\O
* @author treeroot C
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* @since 2006-2-2 ktpaU,%
* @version 1.0 x-?Sn' m
*/ ^*Yh@4\{JH
public class BubbleSort implements SortUtil.Sort{ pxh"B\"4*
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/* (non-Javadoc) Nu?-0>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f__cn^1
*/
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public void sort(int[] data) { DRi<6Ob
int temp; N<-gI9_
for(int i=0;i for(int j=data.length-1;j>i;j--){ 1BpiV-]=
if(data[j] SortUtil.swap(data,j,j-1); Us0EG\Y
} /Id%_,}Kb
} n74V|b6W
} io{@^1ab
} ;k>&FWEG
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选择排序: ap+JQ@b
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package org.rut.util.algorithm.support; O4V.11FnW
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import org.rut.util.algorithm.SortUtil; n4R(.N00
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/** ^Uf]Q$uCjE
* @author treeroot s)6U_
* @since 2006-2-2 ^!<BQP7
* @version 1.0 &p4&[H?
*/ ;E3>ay6m8
public class SelectionSort implements SortUtil.Sort {
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/* G2Qlt@.T
* (non-Javadoc) 6MT1$7|P&x
* 8L:ji,"
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )\J+Kiy)
*/ HiR[(5vnf
public void sort(int[] data) { %B5wH_p
int temp; Hn%xDJ'
for (int i = 0; i < data.length; i++) { lE&&_INHQ
int lowIndex = i; 0c<.iM
for (int j = data.length - 1; j > i; j--) { 9NQlI1Wz4
if (data[j] < data[lowIndex]) { hp 5|@
lowIndex = j; "J[K 3
} B1>/5hV}
} ?"i}^B`*
SortUtil.swap(data,i,lowIndex); (nlvl?\d
} ]<cK";
} GS a[
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Shell排序: > dI LF
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package org.rut.util.algorithm.support; kT"Kyd
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import org.rut.util.algorithm.SortUtil; GzI yP(U
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/** iS
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* @author treeroot -bT)]gA2
* @since 2006-2-2 smRE!f*q
* @version 1.0 T"E6y"D
*/
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public class ShellSort implements SortUtil.Sort{ <SgM@0m
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/* (non-Javadoc) R`DKu=
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <`B,R*H{
*/ ||hb~%JK6
public void sort(int[] data) { GT }F9F~
for(int i=data.length/2;i>2;i/=2){ pb
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for(int j=0;j insertSort(data,j,i); [y'f|XN
} 5q;GIw^L
} g*e
insertSort(data,0,1); v9w'!C)b
} H%UL%l$
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/** ^S UPi
* @param data ;t<QTGJ
* @param j gQxbi1!;9
* @param i [E!oQVY
*/ w)kNkD
private void insertSort(int[] data, int start, int inc) { Tx|Ir+f6L
int temp; +cgSC5nR
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 6y+Kjd/D
} <lw`
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快速排序: s+,OxRVw(
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package org.rut.util.algorithm.support; ~$:|VHl
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import org.rut.util.algorithm.SortUtil; Szq/hv=Q
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/** Bg5Wba%NK
* @author treeroot y .#")IAF
* @since 2006-2-2 01r 8$+
* @version 1.0 *.sVr7=j
*/ f&eK|7J_Yf
public class QuickSort implements SortUtil.Sort{ W-x?:X<}
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/* (non-Javadoc) {sihus#Q
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "!Uqcay-
*/ K`iv c N"
public void sort(int[] data) { \>jLRb|7Ts
quickSort(data,0,data.length-1); 6-yd]("
} BSYzC9h`
private void quickSort(int[] data,int i,int j){ %_+2@\
int pivotIndex=(i+j)/2; P<l&0dPO8
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SortUtil.swap(data,pivotIndex,j); T&%ux=Jt
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int k=partition(data,i-1,j,data[j]); =Z P%mW&;}
SortUtil.swap(data,k,j); ,TXTS*V?
if((k-i)>1) quickSort(data,i,k-1); 8P^ITL z%
if((j-k)>1) quickSort(data,k+1,j); 'oF%,4 !Y
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} 8TGOx%}i
/** X%Z{K-
* @param data ]l1\? I
* @param i :rHJ4Tl
* @param j Wc,~ {
* @return CK,7^U
*/ J)`-+}7$v
private int partition(int[] data, int l, int r,int pivot) { $nb[G$
do{ 9Wnn'T@Tl
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); dRj| g
SortUtil.swap(data,l,r); ;pqg/>W'
} rM .|1(u
while(l SortUtil.swap(data,l,r); )Y2{_ bx4"
return l; Cnbz=z
} v}1QH
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改进后的快速排序: zaah^.MA|
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