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。 ^qs $v06
插入排序: K-v#.e4
D*jM1w_`
package org.rut.util.algorithm.support; pi(m7Ci"
-@'FW*b
import org.rut.util.algorithm.SortUtil; Lbgi7|&
/** .v
K-LHs
* @author treeroot p K*TE5]
* @since 2006-2-2 1EK*g;H
* @version 1.0 dO'(2J8
*/ {: /}NpA$
public class InsertSort implements SortUtil.Sort{ 5m@V#2^P
?<!|
/* (non-Javadoc) oH@78D0A
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |yCMt:Hk
*/ 6k%f
public void sort(int[] data) { e~OpofJNb
int temp; 2y4bwi
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); *dQSw)R
} ES[G
} >4TO=i
} i-1op> Y
`5*}p#G
} sHj/;
3o*YzwRt
冒泡排序: -).C
)0`C@um
package org.rut.util.algorithm.support; =X}J6|>X
.-zom~N-?
import org.rut.util.algorithm.SortUtil; &oNAv-m^GD
Z,gk|M3.
/** F9^S"qv$
* @author treeroot wYea\^co
* @since 2006-2-2
mh%VrAq
* @version 1.0 b%+Xy8a
*/
a?1Wq
public class BubbleSort implements SortUtil.Sort{ $4\j]RE!
*. t^MP
/* (non-Javadoc) &]Tmxh(
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) l1I#QB@5n
*/ WJi]t9 3
public void sort(int[] data) { "+c-pO`Wg
int temp; 4g/dP^
for(int i=0;i for(int j=data.length-1;j>i;j--){ [),ige
if(data[j] SortUtil.swap(data,j,j-1); C!gZN9-
} Ry&6p>-
} Py<}S-:
} gGYKEq{j(
} +`4A$#$+y
T{"(\X$
} 6]N.%Y[(
bA 2pbjg=
选择排序: @ Qe0! (_=
btB%[]
package org.rut.util.algorithm.support; 9c],<;{'
637:
oT_`O
import org.rut.util.algorithm.SortUtil; ceA9){
}V>T M{
/** XW/o<[91
* @author treeroot crCJrN=
* @since 2006-2-2 \8tsDG(1 '
* @version 1.0 H,J8M{
*/ l;U?Z'n
public class SelectionSort implements SortUtil.Sort { )oZ dj`
"@kaHIf[
/* *p d@.|^)m
* (non-Javadoc) 3`HV(5U[
* gw(z1L5
n
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) K3C <{#r
*/ kfNWI#'9
public void sort(int[] data) { \e_O4
int temp; M|-)GvR$J
for (int i = 0; i < data.length; i++) { ICCc./l|
int lowIndex = i; =N@t'fOr
for (int j = data.length - 1; j > i; j--) { *hrd5na
if (data[j] < data[lowIndex]) { +\'tE~V
lowIndex = j; L];b<*d
} rQX zR
} %y@AA>x!
SortUtil.swap(data,i,lowIndex); g0H[*"hj
} 'qi}|I
} P>L +t`'
<3iMRe
} 0(Ij%Wi,
$'TM0Yu,
Shell排序: 49P4b<1
c> af
package org.rut.util.algorithm.support; GILfbNcd
}G=M2V<L
import org.rut.util.algorithm.SortUtil; 9L9sqZUB
^8tEach
/** C~[,z.FvO
* @author treeroot
lr?;*f^3
* @since 2006-2-2 SuznN
L=/$
* @version 1.0 Cw%{G'O
*/ c,22*.V/
public class ShellSort implements SortUtil.Sort{ zi:BF60]=
ax2B ]L2
/* (non-Javadoc) .hiSw
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -di o5a
*/ 0c&+|>!
public void sort(int[] data) { o
K@"f9
for(int i=data.length/2;i>2;i/=2){ VL^EHb7
for(int j=0;j insertSort(data,j,i); d _
e WcI
} Q\)F;: |
} Y7nvHU|+o
insertSort(data,0,1); _wcNgFx
} BY*Q_Et
|%wX*zaf
/** %\DX#.
* @param data GfG|&VNlz
* @param j 'S~5"6r
* @param i ~
1 pr~
*/ *=n:-
private void insertSort(int[] data, int start, int inc) { l~.-e^p?
int temp; JRFtsio*
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); )+M0Y_r
} hSMH,^Io$
} !1uzX
Kb
} qsg>5E
NgB 7?]vu
} .#5l$['
zSjgx_#U
快速排序: rFL$QC2
XvSIWs
package org.rut.util.algorithm.support; emA!Ew(g
YJ2ro-X
import org.rut.util.algorithm.SortUtil; czBi Dk4
}1%r%TikY
/** s([Wn)I
* @author treeroot *[kx F*^
* @since 2006-2-2 |Zq\GA
* @version 1.0 f8:$G.}i
*/ ]i8c\UV \
public class QuickSort implements SortUtil.Sort{ mPVE?jnR^0
o+g4p:Mf
/* (non-Javadoc) i|\{\d
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3^G96]E
*/ Z-|li}lDr
public void sort(int[] data) { Ls:=A6AGM
quickSort(data,0,data.length-1); Ud3""C5B
} \/Ij7nD`l%
private void quickSort(int[] data,int i,int j){ sS,#0Qt.
int pivotIndex=(i+j)/2; -WT3)On
file://swap Z%v6xP.
SortUtil.swap(data,pivotIndex,j); YlUpASW
DA
LQ<iF
int k=partition(data,i-1,j,data[j]); WaYO1*=
SortUtil.swap(data,k,j); M@^U0
?
if((k-i)>1) quickSort(data,i,k-1); "r-l8r,
if((j-k)>1) quickSort(data,k+1,j); &jJckT
~+m,im8}
} @
u1Q-:
/** ~Ob8i 1S>
* @param data a8h]n:!
* @param i dp^N_9$cdO
* @param j z`'P>.x
* @return 5V|tXsy:
*/ *:QXz<_x+
private int partition(int[] data, int l, int r,int pivot) { RWahsJTu
do{ >RR<eYu7m
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); #Si|!
SortUtil.swap(data,l,r); #K`B<2+T
} Bz]J=g7
while(l SortUtil.swap(data,l,r); $GF&x>]]
return l; @Qo,p
} %vc'{`P
^W['A]l
} MxN]7
:GM#&*$2<
改进后的快速排序: *tAqt2{48
j_pw^I$C
package org.rut.util.algorithm.support; &HxT41pku
R`C.ha
import org.rut.util.algorithm.SortUtil; ^I./L)0=}
X RRJ)}P
/** K.h]JD]o
* @author treeroot Fd"WlBYy0
* @since 2006-2-2 f%1wMOzx
* @version 1.0 J3\)Jy
*/ GI4oQcJ
public class ImprovedQuickSort implements SortUtil.Sort { HWR&C
k6g|7^es2
private static int MAX_STACK_SIZE=4096; s=\7)n=,M
private static int THRESHOLD=10; em/Xu
/* (non-Javadoc) 2B'^`>+8S
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {Pvr??"r
*/ Isp_U5M
public void sort(int[] data) { 3YRBI|XO
int[] stack=new int[MAX_STACK_SIZE]; ;@'0T4Z&l
dMgbW<uAu
int top=-1; /'NUZ9
int pivot; sbjtL,
int pivotIndex,l,r; `]LODgk~
feg`(R2
stack[++top]=0; dp< auA
stack[++top]=data.length-1; mdt
?:F4Q
2?H@$-x>
while(top>0){ T Xl\hL\+
int j=stack[top--]; j@V$Mbv
int i=stack[top--]; \#_@qHAG
n%U9iwJ.
pivotIndex=(i+j)/2; UNY@w=]<
pivot=data[pivotIndex]; k7b(QADqUU
7CYH'DL
SortUtil.swap(data,pivotIndex,j); _6J<YQK
9H8=eJd
file://partition DoTs9w|5
l=i-1; <mn-=#)
r=j; &X7ttB"#h
do{ ,{TQ
~LP
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ,@,LD u
SortUtil.swap(data,l,r); EUXV/QV{
} iGyVG41U
while(l SortUtil.swap(data,l,r); ec`>KuY
SortUtil.swap(data,l,j); 8ipW3~-4
%8g$T6E[<2
if((l-i)>THRESHOLD){ 0c-QIr}m
stack[++top]=i; 2:n|x5\H
stack[++top]=l-1; g)nXo:)&