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。 )#os!Ns_A
插入排序: '_q&~M{
TI5<'
U)
package org.rut.util.algorithm.support; m'n<.1;1{j
V$Zl]f$S
import org.rut.util.algorithm.SortUtil; Kcu*Z
/** F+<e9[
* @author treeroot sgLw,WZ:
* @since 2006-2-2 99GK6}~TGm
* @version 1.0 S1I# qb
*/ GI5#{-)
public class InsertSort implements SortUtil.Sort{ R$m?aIN
|S6L[Uo
/* (non-Javadoc) A u10]b
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) n@=D,'cn
*/ XpH d"(*
public void sort(int[] data) { dBm!`;r4
int temp; aN5"[&
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); t) uS7y
} /1BqC3]tL
} jR[b7s
} Ir6(EIwx0
jvQpfd
} MA,7|s
()MUyW"S#`
冒泡排序: L3;cAb/
bHRRgR`,
package org.rut.util.algorithm.support; Xmny(j)g
d-{1>\-_
import org.rut.util.algorithm.SortUtil; s&d!+-\6_
wbQs>pc
/** 2{|mL`$04<
* @author treeroot C2;Hugm4
* @since 2006-2-2 aY8QYK ;?^
* @version 1.0 jdf3XTw
*/ 3D-VePM=`
public class BubbleSort implements SortUtil.Sort{ &gdhq~4#
7Z<
2`&c7
/* (non-Javadoc) 2n3!pZ8
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) s}lp^Uh=
*/ v"YaMbu
public void sort(int[] data) { Gd Vrl[
int temp; YH,u*.I^/
for(int i=0;i for(int j=data.length-1;j>i;j--){ GL-Pir
if(data[j] SortUtil.swap(data,j,j-1); nN%Zed2O@6
} =3;~7bYO
} $DeVXW
} h f{RI 4Jc
} X?aj0# Q
o`M.v[O
} Yln[ZmK9g
!NO)|N>
选择排序: jaL#
/k.?x] Ab
package org.rut.util.algorithm.support; ^&7gUH*v
'/F%
ff
import org.rut.util.algorithm.SortUtil; 2-dEie/{'
quL+UFuM
/** 7r{159&=
* @author treeroot }B`T%(11=
* @since 2006-2-2 !B/5@P
* @version 1.0 a}g<<{
*/ 24I\smO
public class SelectionSort implements SortUtil.Sort { +>QD4z#
O`f[9^fN
/* RjxFlKs8
* (non-Javadoc) P TH'-G
* , Y^GQ`~#
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lho0Xy
gn
*/ Rm[{^V.Z$
public void sort(int[] data) { 2*@@Bw.XA
int temp; 5H2Ugk3
for (int i = 0; i < data.length; i++) { ]sDlZJX<M
int lowIndex = i; }u.I%{4
for (int j = data.length - 1; j > i; j--) { :yFmCLZaQ
if (data[j] < data[lowIndex]) { l.uW>AoLh
lowIndex = j; 5ajd$t
} rm%MQmF
} 534DAhpD=.
SortUtil.swap(data,i,lowIndex); +[":W?j
} 7|DPevrk
} >Yx,%a@~R
!bBx'
} L=&dJpyfT
y q6:7<
Shell排序: %\B@!4]
vAqVs5 j
package org.rut.util.algorithm.support; \ZtF,`Z
?t [C?{'
import org.rut.util.algorithm.SortUtil; i:2eJ.
8X#\T/U
/** Q#PkfjXS
* @author treeroot lnnT_[ni.
* @since 2006-2-2 IoCi(N;
* @version 1.0 4tlLh`-8
*/ 9+!"[
public class ShellSort implements SortUtil.Sort{ }K|40oO5
' 1D1y'
/* (non-Javadoc) 7e=s`j
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZjveXrx
*/ fjLS_Q
;h
public void sort(int[] data) { C/ENJ&
for(int i=data.length/2;i>2;i/=2){ s:*" b'
for(int j=0;j insertSort(data,j,i); !"SuE)WM
} ]SL0Mn g8
} [! YSW'
insertSort(data,0,1); SquuK1P=
} -"5r-q q*
s&L 6C[
/** ^oDSU7j5,
* @param data UF;iw
* @param j zXGi
* @param i AEo
*/
%Krf,H
private void insertSort(int[] data, int start, int inc) { b G/[mZpRT
int temp; K?6#jT6#
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ]O0:0Z\
} )|B3TjHC
} kqZ+e/o>O9
} ~IQw?a.E
w">-r}HnJ
} Y\j5{;V
{Z1^/Fv3
快速排序: /=g$_m@yWI
"f4atuuXa
package org.rut.util.algorithm.support; S3sxK:
vJsx_i\i
import org.rut.util.algorithm.SortUtil; jd+U+8r
@QAI 0ZY
/** -op(26:W<
* @author treeroot +&.wc;mi
* @since 2006-2-2 RP%7M8V){B
* @version 1.0 THmmf_w@
*/ C n.x:I@r
public class QuickSort implements SortUtil.Sort{ :ywm 4)
sW0<f&3
/* (non-Javadoc) '\R/-.
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) i|CAN,'
*/ OFn#C!
public void sort(int[] data) { wqA7_
-
quickSort(data,0,data.length-1); J'@`+veE
} ,rWej;CzN
private void quickSort(int[] data,int i,int j){ 4_d'Uh&]
int pivotIndex=(i+j)/2;
2!";?E
file://swap !T~C =,;
SortUtil.swap(data,pivotIndex,j); lH"4"r
V]P%@<C
int k=partition(data,i-1,j,data[j]); VP_S[+Zv~
SortUtil.swap(data,k,j); 1(jDBP!8
if((k-i)>1) quickSort(data,i,k-1); c63yJqiW
if((j-k)>1) quickSort(data,k+1,j); %<@x(q
(}MN16!
} T*rx5*:o
/** %Mr^~7nN
* @param data !@9G9<NK
* @param i h5}:>yc
* @param j h.)o4(bO
* @return W5R /
*/ 'L8B"5|>
private int partition(int[] data, int l, int r,int pivot) { /7uAf{
do{ a
G\
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot);
Mc<O ~
SortUtil.swap(data,l,r); ObSRd$M
} aLO'.5
~^
while(l SortUtil.swap(data,l,r); 8Lr&-w8J
return l; UOcO\EA+
} o>o! -uf
?+?`Jso(
} TyN]P a
xH>2$ ;f
改进后的快速排序: #?fKi$fS;L
l@`Do [
package org.rut.util.algorithm.support; HD153M,
Hg2Rcl
import org.rut.util.algorithm.SortUtil; -p[!CI
aW(Hn[}^
/** FwqaWEk
* @author treeroot <L+y
6B
* @since 2006-2-2 evGUl~</~
* @version 1.0 >6A8+=
*/ LyG&FOf?
public class ImprovedQuickSort implements SortUtil.Sort { rvp#[RAaS}
agj_l}=gO
private static int MAX_STACK_SIZE=4096; I:edLg1T
private static int THRESHOLD=10; eWWfUNBSLX
/* (non-Javadoc) ZHimS7
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lC'U3Q&
*/ =>X"
public void sort(int[] data) { H1-eMDe
int[] stack=new int[MAX_STACK_SIZE]; ")D5ulb\
UQ}#=[)2e
int top=-1; 89\DS!\x9
int pivot; 'oS= d
int pivotIndex,l,r; l9#@4Os
@3Gr2/a
stack[++top]=0; s_%KWkS
stack[++top]=data.length-1; E@_]L<Z
+AYB0`X)
while(top>0){ bz|-x"qk
int j=stack[top--]; aM|;3j1p
int i=stack[top--]; +\U#:gmw
Z!2%{HQ=q
pivotIndex=(i+j)/2; mY&(&'2T"
pivot=data[pivotIndex]; 0{qe1pb w
ZiaHLpk
SortUtil.swap(data,pivotIndex,j); m*~Iu<5L
&%r<_1
file://partition ]? %*3I
l=i-1; f7?IXDQ>!
r=j; SYwB
#|
do{ GL'l "L
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); jW;g{5X
SortUtil.swap(data,l,r); ~TYpq;rq
} PgdHH:v)
while(l SortUtil.swap(data,l,r); 0F9p'_C
SortUtil.swap(data,l,j); 4~~G
i`XE
1Uk Gjw1J
if((l-i)>THRESHOLD){ bDjm:G
stack[++top]=i; CqR^w(
stack[++top]=l-1; l$ufW|
} 7~!F3WT{
if((j-l)>THRESHOLD){ nd,2EX<bE
stack[++top]=l+1; `&URd&ouJD
stack[++top]=j; PauF)p
} |OBh:d_B]
DC(u,iW%6
} ;|pw;-
file://new InsertSort().sort(data); U5ME`lN*`
insertSort(data); 85qD~o?O
} d[`vd^hI
/** +'{d^-( (
* @param data 1"f)\FPGe
*/ v\dP
private void insertSort(int[] data) { V,&A?
Y
int temp; qh#?a'
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); RX?y}BDo0
} Cq[<CPAS
} OBL2W\{
} <