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。 t#fs:A7P?}
插入排序: 17J} uXA
Nr>c'TH
package org.rut.util.algorithm.support; 4JX`>a{<
/X(@|tk:
import org.rut.util.algorithm.SortUtil; @N,:x\
/**
N BV}4
* @author treeroot *ah>-}-
* @since 2006-2-2 v_y!Oh?EG
* @version 1.0 {Q{lb(6Ba
*/ v p"%IW
public class InsertSort implements SortUtil.Sort{ KC@k9e
Fpy6"Z?z
/* (non-Javadoc) ^n\9AE3
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) AZh@t?)
*/ utYnaeQcn
public void sort(int[] data) { P5'iYahCq_
int temp; XkM s
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); i_j9/k
} b:N^Fe
} Ha46U6_'h
} J!21`M-Ue
i /O1vU#
} !!?+M @
Y|{r
vBKjf
冒泡排序: -ET*M<
$=e&q
package org.rut.util.algorithm.support; u=p ;A1oy
]_^"|RJ
import org.rut.util.algorithm.SortUtil; \_m\U.*
.V5q$5j
/** \zk?$'d
* @author treeroot :FX'[7;p
* @since 2006-2-2 +-Z"H)
* @version 1.0 OaD
Alrm
*/ #6Efev
public class BubbleSort implements SortUtil.Sort{ _n-VgPRn
3q~":bpAp
/* (non-Javadoc) W0+gfg
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 37j\D1Y
*/ eT7!a']x
public void sort(int[] data) { ?z \q Mu
int temp; F&W0DaH
for(int i=0;i for(int j=data.length-1;j>i;j--){ .ujs`9d_-
if(data[j] SortUtil.swap(data,j,j-1); tnQR<
} uM6CG0
} m.\ >95!
} /3CHE8nSh
} oso1uAOfp
D..{|29,:
} c,#~L7
J~_L4*Jw
选择排序: }m=tzHB*
p56KS5duI.
package org.rut.util.algorithm.support; )bB"12Z|8
P#dG]NMf
import org.rut.util.algorithm.SortUtil; baUEsg[~V
w0a+8gexi
/** u+2xrzf
* @author treeroot Yv#J`b@y
* @since 2006-2-2 |'V<>v.v
* @version 1.0 IqvqvHxLX
*/ LVR;&Z>j
public class SelectionSort implements SortUtil.Sort { B-y0;0
E%wV
/* n9<roH
* (non-Javadoc) dXA{+<!!
* Q%,o8E2~
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nZ2mEt
*/
"?2
public void sort(int[] data) { aH5t.x79b
int temp; I3}HNGvU
for (int i = 0; i < data.length; i++) { *6 z'+'
int lowIndex = i; J[j/aDdP
for (int j = data.length - 1; j > i; j--) { v7{ P].M
if (data[j] < data[lowIndex]) { I2t-D1X
lowIndex = j; nvO%
} EuKrYY] g
} ;#5-.z
SortUtil.swap(data,i,lowIndex); 7AGZu?1]M
} L:t)$iF5+
} mJ6t.%'d
PTuCN
} N3XVT{yo
S7?f5ux
Shell排序: 7
SjF9x
OBKC$e6I
package org.rut.util.algorithm.support; vxbH^b
}<5\O*kX4
import org.rut.util.algorithm.SortUtil; b:}wR*Adc
bik] JIM
/** dUsJv
* @author treeroot /?.r!Cp
* @since 2006-2-2 sUyCAKebRr
* @version 1.0 2-"Lxe65f
*/ 3oppV_^JdT
public class ShellSort implements SortUtil.Sort{ /ctaAQDUh\
|? ;"B:0
/* (non-Javadoc) ohQz%?r
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YO.`l~ v
*/ Y5h)l<P>B
public void sort(int[] data) { ]HNT(w@
for(int i=data.length/2;i>2;i/=2){ )M&Azbu
for(int j=0;j insertSort(data,j,i); }2iKi(io*
} WL)_8!
} UZ4tq
insertSort(data,0,1); 4 BE:&A
} {L-{Y<fke
wRV`v$*6
/** %mB!|'K%
* @param data 8r`VbgI&
* @param j =\Tud-1Z
* @param i W[[YOK1T
*/ YWcui+4p}
private void insertSort(int[] data, int start, int inc) { &P,4EaC9;
int temp; =B/s HN
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); (?*mh?
} Y-neD?V N
} ySr091Q
} m 1'&{O:
K*HVn2OV
} m&3HFf
.swgXiRvs
快速排序: J#Ne:Aj_
PoBukOv
package org.rut.util.algorithm.support; NR;S3-Iq(
z/P^-N>
import org.rut.util.algorithm.SortUtil; A_6/umF[ZA
FM;;x(sg
/** 0f=N3)
* @author treeroot j-I6QUd
* @since 2006-2-2 4Rrw8Bw
* @version 1.0 =CG!"&T
*/ \K_!d]I {
public class QuickSort implements SortUtil.Sort{ T,xVQ4J?
fr,CH{Uq
/* (non-Javadoc) VxPTh\O*[
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y00i{/a 8
*/ bAy5/G!_R
public void sort(int[] data) { st'?3A
quickSort(data,0,data.length-1); $:-= >
} HkfSx rTgQ
private void quickSort(int[] data,int i,int j){ QAOk
int pivotIndex=(i+j)/2; R+ #.bQg
file://swap @0/@p"j
SortUtil.swap(data,pivotIndex,j); -+
IX[
g1hg`qBBW
int k=partition(data,i-1,j,data[j]); &23ss/
SortUtil.swap(data,k,j); COkLn)+0
if((k-i)>1) quickSort(data,i,k-1); eLt Cxe
if((j-k)>1) quickSort(data,k+1,j); 1CS]~1Yp:
PTI'N%W
} vU\w3
/** gKm~cjCB`~
* @param data e u=f-HW]
* @param i 0\_R|i_`>
* @param j ~qLhZR\g^
* @return *Y^Y
*/ *\~kjZ 3
private int partition(int[] data, int l, int r,int pivot) { PU@U@
do{ {C0OrO2:
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); j_ywG{Jk
SortUtil.swap(data,l,r); G"UH4n[1ur
} I8-&.RE
while(l SortUtil.swap(data,l,r); QLpTz"H
return l; d=+Lv<
} /bNVgK`L5
L/ICFa.G
} {L2Gb(YLW
2Z IpzH/8
改进后的快速排序: 8w@W8(3B
u7y7
package org.rut.util.algorithm.support; %BYlbEx
yS.fe[
import org.rut.util.algorithm.SortUtil; lA^Kh
Kj<<&_B.H
/** n]ppO
U|[
* @author treeroot ]BS{,sI
* @since 2006-2-2 We+FP9d %
* @version 1.0 ;u-< {2P
*/ kAQ\t?`x
public class ImprovedQuickSort implements SortUtil.Sort { Vp-OGX[
cwW~ *90#
private static int MAX_STACK_SIZE=4096; - m x3^
private static int THRESHOLD=10; n5,Pq+[
/* (non-Javadoc) &<