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。 #>SvYP
插入排序: (I bT5
ty8\@l
package org.rut.util.algorithm.support; t/6t{*-w
=uZOpeviQ
import org.rut.util.algorithm.SortUtil; 9w-V +Nf
/** ;2m<#~@0
* @author treeroot HWr")%EhD
* @since 2006-2-2 E57J).x-BP
* @version 1.0 OVsZUmSG
*/ 39W"G7n?v
public class InsertSort implements SortUtil.Sort{ Q k`yK|(0=
29+p|n
/* (non-Javadoc) [qHLo>HaL
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Min^EAG@
*/ 5"f')MKUV9
public void sort(int[] data) { 9d7$Fz#
int temp; +^St"GWY
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); w$JG:y#
} ))M; .b.D
} {r9fKA
} W_zv"c
WQ\H2go
} >*TFM[((Y)
MP Ma
冒泡排序: e ;4y5i
*wml
4lh
package org.rut.util.algorithm.support; (6C%w)8'
FFT h}>>
import org.rut.util.algorithm.SortUtil; k+^-;=u6<
t3TnqA
/** a0Y/,S*K
* @author treeroot ! H)D@,@ &
* @since 2006-2-2 E(i<3U"4h[
* @version 1.0 N'L3Oa\%
*/ K-$gTV
public class BubbleSort implements SortUtil.Sort{ l\=M'D
LB<,(dyh
/* (non-Javadoc) l
vuoVINEp
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c}nXMA^^
*/ L< MIl[z7
public void sort(int[] data) { EwSE;R -
int temp; c\.8hd=<
for(int i=0;i for(int j=data.length-1;j>i;j--){ mdu5aL
if(data[j] SortUtil.swap(data,j,j-1); mVYLI!n}0#
} JW!SrM xF
} t]Ey~-Rx
} DrD68$,QN
} ^Zh
YW
* \@u,[,
} jgLCs)=5hV
r5!I|E
选择排序: @_&@M~ u
Qt_LBJUWV
package org.rut.util.algorithm.support; )'{:4MX
NX?J
import org.rut.util.algorithm.SortUtil; Ybr&z7# 2
+DwyMzeE
/** ;c5Q"
* @author treeroot *KP
60T
* @since 2006-2-2 9aw- n*<
* @version 1.0 pKrol]cth8
*/ O!!Ne'I
public class SelectionSort implements SortUtil.Sort { *g$egipfF
X<4h"W6
/* gi;#?gps
* (non-Javadoc) ~eH+*U|\|M
* \lVX~r4
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %DAF26t
*/ 9}`A_KzFx
public void sort(int[] data) { 1uTbN
int temp; #D"fCVIS
for (int i = 0; i < data.length; i++) { _"8\k7S*
int lowIndex = i; 56Q9RU(M
for (int j = data.length - 1; j > i; j--) { b {e nD
if (data[j] < data[lowIndex]) { $x&\9CRM
lowIndex = j; 2M>Y3Q2Yv
} 5b_[f(
} RVmD&
SortUtil.swap(data,i,lowIndex); v*Qr(4
} i[b?W$]7
} pIh%5ZU
gk+$CyjJ
} Az2HlKF"L
s9 '*Vm
Shell排序: Cc:m~e6r
n237%LH[
package org.rut.util.algorithm.support; lgC|3]
J7R+|GTcx
import org.rut.util.algorithm.SortUtil; :F:<{]oG_
ms'!E)
/** 9?)r0`:#
* @author treeroot <$s G]l!\
* @since 2006-2-2 v_*E:E
* @version 1.0 ".z~c%'
*/ iY~9`Q1E
public class ShellSort implements SortUtil.Sort{ |9)Q =(
S8+Xk= x
/* (non-Javadoc) CCJ!;d;&87
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /#?lG`'1
*/ QKYGeT7&Y'
public void sort(int[] data) { 9k_3=KS3N
for(int i=data.length/2;i>2;i/=2){ tk5Bb`a
for(int j=0;j insertSort(data,j,i); OiAi{ 71
} iG*3S)
} S5ofe]tS@
insertSort(data,0,1); <o5+*X
} rvRtR/*?j
6=]%Y
/** !7SZZz
* @param data ,[IN9W
* @param j SE+K"faKQ
* @param i :0Nd4hA
*/ \M/XM6:UG4
private void insertSort(int[] data, int start, int inc) { vv,OBL~{
int temp; 0(VQwGC[
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); *7hr3x
} UA3%I8gu_
} DoA4#+RU
} IEV3(qzt
4.bL>Y>c
} H".~@,-}
e!}R1
快速排序: 5Bw
3`4g*wO
package org.rut.util.algorithm.support; z;UkK
%k#Q)zWJ
import org.rut.util.algorithm.SortUtil; }pKHa'/\
DJlY~}v#_
/** /OaLkENgvf
* @author treeroot VmrW\rH@
* @since 2006-2-2 D,+I)-k<
* @version 1.0 F7^d@hSV
*/ :Vq gmn
public class QuickSort implements SortUtil.Sort{ M:h~;+s
]*-9zo0
/* (non-Javadoc) -\yaP8V
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [Dp 6q~RM
*/ eHG**@"X
public void sort(int[] data) { a
1bu
quickSort(data,0,data.length-1); J?$4Yf
} O&]Y.Z9,A
private void quickSort(int[] data,int i,int j){ 1tG,V%iCp
int pivotIndex=(i+j)/2; <#ujm fD
file://swap bh:;ovH
SortUtil.swap(data,pivotIndex,j); 0q"&AxNsP
Nzz" w_#
int k=partition(data,i-1,j,data[j]); uj_uj!
SortUtil.swap(data,k,j); r?d601(fa
if((k-i)>1) quickSort(data,i,k-1); 6l IFxc
if((j-k)>1) quickSort(data,k+1,j); M")v ph^
@#ih;F
} Y;S+2])R2
/** PL<q|y
* @param data *nD yB.(
* @param i f+Nq?GvwBQ
* @param j z7F~;IB*u
* @return '6u;KIG
*/ I'G$: GX
private int partition(int[] data, int l, int r,int pivot) { AEm?g$a
do{ ;5-Sn(G
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); S'vi +_
SortUtil.swap(data,l,r); nn$,|/
} D
%~s
while(l SortUtil.swap(data,l,r); >1xlP/4jx
return l; he&*N*of:
} 9}t2OJS*h"
LOi5 ^Um|
} H Kx2QFB
"y/GK1C
改进后的快速排序: yWu80C8q
,6,#Lc
package org.rut.util.algorithm.support; 6Km@A M]
X:+;d8rCy
import org.rut.util.algorithm.SortUtil; E
N%cjvE
1p>5ZkHb
/** Z<z(;)?c
* @author treeroot UceZWtYa
* @since 2006-2-2 XX~~SvSM
* @version 1.0 Lm"l*j4
*/ |eWlB\ x8
public class ImprovedQuickSort implements SortUtil.Sort { hf>JW[>Xo
n_sCZ6uXEQ
private static int MAX_STACK_SIZE=4096; o6
private static int THRESHOLD=10; N54U
[sy
/* (non-Javadoc) 2 @Jw?+}vr
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |#$Wh+,*
*/ c3]ZU^
public void sort(int[] data) { D_D<N(O
int[] stack=new int[MAX_STACK_SIZE]; X'e@(I!0
1Ah
int top=-1; )#Ea~>v
int pivot; 5YMjvhr?W
int pivotIndex,l,r; ` :Am#"j]}
Dms6"x2
stack[++top]=0; W1M<6T.{7
stack[++top]=data.length-1; =:mD)oX*
&%L1n?>Q}
while(top>0){ |i7|QLUT
int j=stack[top--]; Hn0,LH$/
int i=stack[top--]; y^=\w?d
&V$_u#<
pivotIndex=(i+j)/2; (}vi"mCeW
pivot=data[pivotIndex]; )U e9:e
>y"V%
SortUtil.swap(data,pivotIndex,j); aGx`ec*t
3J~Q pw0<
file://partition Jj_E/c"
l=i-1; dGMBgj
r=j; I0sd%'Ht?
do{ Hq"i0Xm
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ,95Nj h
SortUtil.swap(data,l,r); =K~<& l8
} BZ<Q.:)
while(l SortUtil.swap(data,l,r); 4]u53`
SortUtil.swap(data,l,j); NMM0'tY~
rq Dre`m
if((l-i)>THRESHOLD){ ?V"X=B2
stack[++top]=i; DzYi>
E:*
stack[++top]=l-1; 5X4; (Qj
} ".onev^(
if((j-l)>THRESHOLD){ 6pM[.:TM
stack[++top]=l+1; R8Nr3M9 )
stack[++top]=j; _dVzvk`_R
} ?d0I*bs)7
:% )va
} xrxORtJ<