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。 JY%c<
插入排序: SDJAk&Z}R
x~Pv
package org.rut.util.algorithm.support; K4l,YR;r
?M\3n5;
import org.rut.util.algorithm.SortUtil; }vcC4 =t/
/** Y+WOU._46I
* @author treeroot >F@7}Y(
* @since 2006-2-2 l} h<2
* @version 1.0 WvN5IHo 8i
*/ WO_cT26Y
public class InsertSort implements SortUtil.Sort{ =|uX?
&HW%0lTs%
/* (non-Javadoc) >mh:OJH45
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) t5e% "}>7H
*/ J}<k`af
public void sort(int[] data) { | F:?
int temp; @\[&_DZ
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); r#^X]
} eGnc6)x@C
} G|X1c}zAL
} R+, tn,<<
wCc:HfmjJ
} .qF@
}dO
}U+gJkY2
冒泡排序: >*Y~I0>
D<Ads
package org.rut.util.algorithm.support; d<: VoQM6M
l=bB,7gL
import org.rut.util.algorithm.SortUtil; 1>l{c
lusINILc
/** H}JH339
* @author treeroot 7c<2oTN'
* @since 2006-2-2 1<fEz
* @version 1.0 bxEb2D
*/ Px'% 5TKN
public class BubbleSort implements SortUtil.Sort{ 4z[Z3|_V
uVOOw&q_
/* (non-Javadoc) 6}{2W<
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~eqX<0hf@
*/ 0(-'L\<>x
public void sort(int[] data) { \asF~P
int temp; 0>Ecm#
for(int i=0;i for(int j=data.length-1;j>i;j--){ U*v//@WbH
if(data[j] SortUtil.swap(data,j,j-1); Lj({
T'f(
} "D8xHHb
} K'n^,
t
} (a]'}c$X9`
} ]?mWnEi!z
z`5+BL,|ND
} )N`ia%p_]
-Qqb/y
选择排序: ~"brfjd|
T"8>6a@}E
package org.rut.util.algorithm.support; <hQ@]2w$
&R pQ2*4n
import org.rut.util.algorithm.SortUtil; g8!!:fdu
d*8 c,x
/** |5$9l#e
* @author treeroot `Z]a6@w~
* @since 2006-2-2 qV8;;&8r
* @version 1.0 e+4p__TmZ
*/ a5z.c_7r
public class SelectionSort implements SortUtil.Sort { 9?bfZF4A=
Lm:O
vVVB
/* 44RZk|U1J{
* (non-Javadoc) cd*y{Wt
* S1E2E3
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #=Q/<r.~G
*/ {Kd9}CDAZ
public void sort(int[] data) { u =#LY$
int temp; fC]+C(*d
for (int i = 0; i < data.length; i++) { !);}zW!
int lowIndex = i; hFj.d]S
for (int j = data.length - 1; j > i; j--) { QH~/UnV
if (data[j] < data[lowIndex]) { *Rr,ii
lowIndex = j;
6bo,x
} ^*%p]r
} m!N_TOl-^
SortUtil.swap(data,i,lowIndex); m{(D*Vuqd
} xgsD<3
} B2WPjhzD
uSM4:!8
} >UWLT;N/W
\*!g0C8 o
Shell排序: dSk\J[D
wC'KI8-
package org.rut.util.algorithm.support; -md2Z0^ Kc
dUOjPq97
import org.rut.util.algorithm.SortUtil; 4UC/pGZY
=n9adq
/** ZCbxL.fFz
* @author treeroot H :d{Sru
* @since 2006-2-2 3`IDm5
* @version 1.0 ZRD* ^9)
*/ h_*=_ 2|}
public class ShellSort implements SortUtil.Sort{ #x)G2T'?
v?fB:[dG
/* (non-Javadoc) ;7tOFsV
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) w v9s{I{P
*/ !ny;YV
public void sort(int[] data) { Wy)|-Q7
for(int i=data.length/2;i>2;i/=2){ r7JILk
for(int j=0;j insertSort(data,j,i); [)Xu60?Q
} dZ`nv[]k~
} 7{8!IcR #
insertSort(data,0,1); @<W"$_r-
} sZ]O&Za~
q6\z]8)
/** Drk9F"J
* @param data $C,f>^1
* @param j P,CJy|[L
* @param i z})H$]: $
*/ +g7Iu! cA
private void insertSort(int[] data, int start, int inc) { `^wF]R
int temp; "EWU:9\0
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); _+z@Qn?#6h
} >F Z6\
} \EUc17
} o
PR^Z
pt
f.V0uBDN
} =f.f%g6
W\N-~9UA
快速排序: e`<=&w
84e)huAs
package org.rut.util.algorithm.support; f^:9gRt
#9#N+
import org.rut.util.algorithm.SortUtil; ,;GWn
b0m1O.&I_
/** "aB]?4
* @author treeroot (^eE8j/K
* @since 2006-2-2 s-*8=
* @version 1.0 Vy-H3BR
*/ ;vQ7[Pv.j
public class QuickSort implements SortUtil.Sort{ B%^B_s
d3 fE[/oU
/* (non-Javadoc) 67/hhO
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |~8iNcIS
*/ `r+e!o
public void sort(int[] data) { 9i,QCA
quickSort(data,0,data.length-1); qB<D'h7
} m-*du(
private void quickSort(int[] data,int i,int j){ VP0wa>50!
int pivotIndex=(i+j)/2; 6H.D`"cj
file://swap >6r&VZu*n
SortUtil.swap(data,pivotIndex,j); 5W 5\*L
]Ny. gu
int k=partition(data,i-1,j,data[j]); DWm$:M4z
SortUtil.swap(data,k,j); I&Yu=v/_
if((k-i)>1) quickSort(data,i,k-1); vRRi"bo
if((j-k)>1) quickSort(data,k+1,j); ]Ol@^$8}
n&FN?"I/]
} N''9Bt+:
/** 3AX /A+2
* @param data G?'L1g[lc
* @param i _9\ayR>d
* @param j rguC#Xt!4
* @return y5|`B(
*/ q:J,xC_sF(
private int partition(int[] data, int l, int r,int pivot) { s-o0N{b?#'
do{ CIj3D"
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); v(h
SortUtil.swap(data,l,r); Ur?a%]
} L$i&>cF\_>
while(l SortUtil.swap(data,l,r); $N+a4
return l; t}_qtO7>
} v)okVyv
HMrS::
} 2@uo2]o)
ASR"<]
改进后的快速排序: oBifESJ
nd'zO#"m?
package org.rut.util.algorithm.support; ~Q>97%
hgfCM
import org.rut.util.algorithm.SortUtil; vZhN%
DfY
h1FM)n[E7
/** gSL$silc
* @author treeroot (NScG[$}
* @since 2006-2-2 GT|=Apnwr%
* @version 1.0 6@ToPbj4
*/ {-7];e
public class ImprovedQuickSort implements SortUtil.Sort { 3oE *86
E`u=$~K
private static int MAX_STACK_SIZE=4096; .!l#z|/x
private static int THRESHOLD=10; |XLx6E2F
/* (non-Javadoc) ~ NKw}6
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) J0C,KU(
*/ NVcL9"ht*@
public void sort(int[] data) { t?QR27cs$
int[] stack=new int[MAX_STACK_SIZE]; [ -{L@
z )a8
^]`
int top=-1; aq oT
int pivot; dfO@Yo-?*'
int pivotIndex,l,r; HZkC3$
=5[}&W
stack[++top]=0; bo0m/hVU
stack[++top]=data.length-1; x\*`i)su
tceQn
^|<
while(top>0){ ^z"90-V^
int j=stack[top--]; 5d*k[fZ
int i=stack[top--]; _;G"{e.=
(C!u3ke2D
pivotIndex=(i+j)/2; .NiPaUzc<
pivot=data[pivotIndex]; :G9.}VrU
\3O#H
SortUtil.swap(data,pivotIndex,j); [JO'ta
g(;t,Vy,I
file://partition YaFQy0t%/5
l=i-1; rgRh ySud
r=j; fY}e.lD
do{ D ( <_1
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); RI')iz?
SortUtil.swap(data,l,r); '<^%>R2
} '2WYbcU
while(l SortUtil.swap(data,l,r); A@?2qX^4
SortUtil.swap(data,l,j); ,}=x8Xxr
|F iL1_
if((l-i)>THRESHOLD){ 8]YFlW9
stack[++top]=i; AVZ -g/<
stack[++top]=l-1; 15)=>=1mR.
} ]mn(lK
if((j-l)>THRESHOLD){ -9UQs.Nv
stack[++top]=l+1; CGbW]D$@
stack[++top]=j; 53=VIN]
} 0N;Pb(%7UU
EZ8Ih,j9
} 8;5 UO,`T
file://new InsertSort().sort(data); P2_ JS]>
insertSort(data); W&;X+XA_W
} #W @6@Mv
/** @-NdgM<
* @param data Ja4O*C<
*/ JrQd7
private void insertSort(int[] data) { ;4z6="<Y
int temp; l-Xxur5M'
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 17a'C
} qq]ZkT}
} c]P`U(q9TV
} R Q X
1ZJP.T`
} d(jd{L4d
Eyxw.,rB/
归并排序: $A`D p{e"
HC@E&t