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。 {P9J8@D
插入排序: K`}{0@ilCw
rjt8fN
package org.rut.util.algorithm.support; ;?fS(Vz~
.@)mxC:\K9
import org.rut.util.algorithm.SortUtil; lA!"z~03*
/** 5cr(S~Q;
* @author treeroot g3n'aD@'x
* @since 2006-2-2 Mk<Vydds
* @version 1.0 cHA7Kg !
*/ a`9L,8Ve
public class InsertSort implements SortUtil.Sort{ }TRAw#h
F~#zxwd
/* (non-Javadoc) 6dH }]~a
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h!@|RW&}qX
*/ <^.=>Q0S\
public void sort(int[] data) {
>DM44
int temp; V~DMtB7
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Xm2\0=v5;
} 8VG!TpX/B
} -W{DxN1
} :%&Q-kk4!
M69
w-
} vD/NgRBww
nL@KX>
冒泡排序: M4LP$N
:,;K>l^U
package org.rut.util.algorithm.support; l:;PXy6)
FLal}80.o:
import org.rut.util.algorithm.SortUtil; ~fl@ 2
sKz`aqI
/** >%p{38
* @author treeroot VLsxdwHgb
* @since 2006-2-2 C,V%B
* @version 1.0 1sE?YJP-
*/ 8*SDiZ
public class BubbleSort implements SortUtil.Sort{ _8fr6tO+
)C(>H93
/* (non-Javadoc) NqHy%'R
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {_N,=DQ!
*/ vE6mOM!_L
public void sort(int[] data) { ~0$NJrUy
int temp; -\ZcOXpMx=
for(int i=0;i for(int j=data.length-1;j>i;j--){ 5*PYT=p}
if(data[j] SortUtil.swap(data,j,j-1); r;9 r!$d
} 7*Qk`*Ii
} .LVQx
} Ng><n}
} h2z_,`iS7
dG QG!l+>
} 8 a!Rb-Q:
,jA)wJ
选择排序: R2etB*k6[
k 4/D8(OXw
package org.rut.util.algorithm.support; bawJ$_O_
`
8W*
import org.rut.util.algorithm.SortUtil; lPH%Do>K
2Y}?P+:%>
/** h'J|K^na
* @author treeroot !f>d_RG
* @since 2006-2-2 Y^Nuz/
* @version 1.0 ]3ONFa
*/ r`&-9"+
public class SelectionSort implements SortUtil.Sort { ?1L.:CS
[=O/1T
/* )}Q(Tl\$
* (non-Javadoc) Gir#"5F
* =U[3PC-N@
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -yxOBq
*/ T +5X0 Nv
public void sort(int[] data) { A,su;Qh
int temp; A[G0 .>Wk
for (int i = 0; i < data.length; i++) { yJuQ8+vgR}
int lowIndex = i; MRU7W4W-~/
for (int j = data.length - 1; j > i; j--) { jR=s#Xz
if (data[j] < data[lowIndex]) { >56>*BHD
lowIndex = j; x@mL $
} f)]%.>
} AV 8n(
SortUtil.swap(data,i,lowIndex); umz;F
} xw{-9k-~
} A5,t+8`aci
*5tO0_L
} \txbhWN
jq'!UN{
Shell排序: yx V:!gl
IUR<.Y`
package org.rut.util.algorithm.support; t+oJV+@
&`b
"a!
import org.rut.util.algorithm.SortUtil; d0'JC*
|6Gm:jV
/** +q6ydb,
* @author treeroot imQURC
* @since 2006-2-2 }QZQ3@
* @version 1.0 IH$0)g;s
*/ b~dIk5>O
public class ShellSort implements SortUtil.Sort{ Q1V9PRZX
9nu3+.&P
/* (non-Javadoc) J0zn-
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +C7 ~b~ %
*/ zMIT}$L
public void sort(int[] data) { Zmbfq8K
for(int i=data.length/2;i>2;i/=2){ dr4Z5mw"E
for(int j=0;j insertSort(data,j,i); I ZQHu h
} l
& Dxg
} t|t#vcB
insertSort(data,0,1); kd"N29
} /0\
mx4u
G0E121`h
/** ,C3,TkA]
* @param data }kg ye2[
* @param j u!1{Vt87
* @param i M$f7sx
*/ O25lLNmO
private void insertSort(int[] data, int start, int inc) { 8* Jw0mSw
int temp; 8H[:>;SI
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); HF|oBX$_
} w+1Gs
;
} @p\}p Y$T
} );-~j
m%?V7-9!k
} @F(mi1QO
X.`~>`8
快速排序: 1;<R#>&,*
x@8a''
package org.rut.util.algorithm.support; KZ~*Nz+H2
R$zH]
import org.rut.util.algorithm.SortUtil; 6q
2_WX
`6+"Z=:
/** #c^^=Z
* @author treeroot +iOKb c'
* @since 2006-2-2 D7_*k%;@
* @version 1.0 VK@!lJu!
*/ Q1@A2+ c
public class QuickSort implements SortUtil.Sort{ 9mZ
|7x\m t
/* (non-Javadoc) yA47"R
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2wF8 P)
*/ 36US5ef
public void sort(int[] data) { ^n0]dizB
quickSort(data,0,data.length-1); s&'QN=A
} jt+iv*2N>
private void quickSort(int[] data,int i,int j){ )>BHL3@
int pivotIndex=(i+j)/2; $.]l!cmi%Q
file://swap 86nN"!{l:
SortUtil.swap(data,pivotIndex,j); V)}rEX
v%Wx4v@%SE
int k=partition(data,i-1,j,data[j]); ,AT[@
SortUtil.swap(data,k,j); (p%>j0<
if((k-i)>1) quickSort(data,i,k-1); A_KW(;50
if((j-k)>1) quickSort(data,k+1,j); >M&3Y
XC
](|\whI
} ID/F
/** HV<Lf
6gE
* @param data 1'?4m0W1
* @param i R:B^
* @param j qe5feky
* @return J=/5}u_gw
*/ (Cqn6dWK
private int partition(int[] data, int l, int r,int pivot) { :%IoM E
do{ 6-O_\Cq8
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); bJs9X/E
SortUtil.swap(data,l,r); @B}aN@!/
} 4[N^>qt =
while(l SortUtil.swap(data,l,r); y!xE<S&Y
return l; W^"AU;^V56
} !>:?rSg*
tJN<PCG6"
} K(aJi,e>
L@fY$Rw
改进后的快速排序: Q|@4bz i)
av~5l4YL
package org.rut.util.algorithm.support; *g^x*|f6
,i@X'<;y
import org.rut.util.algorithm.SortUtil; +@r*}
f5 `g
/** kwsp9 0)
* @author treeroot 4bgqg0z>
* @since 2006-2-2 /&4U6a
* @version 1.0 X]y)qV)a[c
*/ ={u0_j
W
public class ImprovedQuickSort implements SortUtil.Sort { u(G*\<z-
V*~Zs'L'E
private static int MAX_STACK_SIZE=4096; iQ"XLrpl
private static int THRESHOLD=10; #KO,~]k5|e
/* (non-Javadoc) 2it?$8#i
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3h<,
*/ ]kboG%Dl?9
public void sort(int[] data) { RD.V'`n"
int[] stack=new int[MAX_STACK_SIZE]; I|Gp$uq _
l}qE 46EL
int top=-1; ^b
%0B
int pivot; /7
Cn(s5 o
int pivotIndex,l,r; Q%f|~Kl-hd
<