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。 bdcuO)3
插入排序: W"!nf
DO(
/,A<{8
package org.rut.util.algorithm.support; B8a!"AQ~5
2M1yw "
import org.rut.util.algorithm.SortUtil; !L3Bvb;Q
/** ~{d94o.
* @author treeroot @uH7GW}$g
* @since 2006-2-2 )(DV~1r=
* @version 1.0 dHOz;4_
*/ Ii[rM/sG
public class InsertSort implements SortUtil.Sort{ MgtyO3GUAD
&V$'{
/* (non-Javadoc) R9=,T0Y
p
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jv_sRV
*/ xR1g
public void sort(int[] data) { 09x\i/nb
int temp; lbv, jS
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ]7xAL7x
} wz6e^ g
} [N7[%iQ%
} }^LcKV
p=405~
} WtlIrdc
C<n.C*o
冒泡排序: Ho"FB|e
9"V27"s
package org.rut.util.algorithm.support; 8E0Rg/DnT
KE5f`h
import org.rut.util.algorithm.SortUtil; u $sX6
03rZz1
/** Y1
-cz:
* @author treeroot qw_qGgbl
* @since 2006-2-2 (Yw5X_|
* @version 1.0 EB> RY+\
*/ MuO>O97
public class BubbleSort implements SortUtil.Sort{ q2/Vt0aYx
SULWPH5Pr
/* (non-Javadoc) ]pB~&0jg
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *><]
[|Y@H
*/ PK+][.6H
public void sort(int[] data) { 9:=a FP
int temp; PfuYT_p4s
for(int i=0;i for(int j=data.length-1;j>i;j--){ 0tsll1
if(data[j] SortUtil.swap(data,j,j-1); W}.4$f>
} _fa]2I
} CZ&TUE|:DA
} h+$_:](PC
} %F}`;>C3
,:L}S03k
} N!Y'W)i16
/pyKTZ|
选择排序: FAQ:0L$G
?T4%"0
package org.rut.util.algorithm.support; [Cr_2
YDQV,`S7
import org.rut.util.algorithm.SortUtil;
/?_{DMt
wT.V3G
/** &`@Jy|N\
* @author treeroot X2Lhb{ZHE
* @since 2006-2-2 }]n&" =Zk-
* @version 1.0 {{<o1{_H
*/ !P:hf/l[B
public class SelectionSort implements SortUtil.Sort { <MfB;M
z5{I3 Y!1
/* <o]tW4\(R
* (non-Javadoc) BtqJkdK!;1
* ;V%lFP3#
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f}+G;a9Nj
*/ @nZFw.
public void sort(int[] data) { cF/FretoO
int temp; ^|sQkufo
for (int i = 0; i < data.length; i++) { 'Y&yt"cs
int lowIndex = i; OI`Lb\8pP
for (int j = data.length - 1; j > i; j--) { PGw"\-F
if (data[j] < data[lowIndex]) { H%sQVE7m
lowIndex = j; ^lQ-w|7(
} liU=5BL
} + S%+Ku
SortUtil.swap(data,i,lowIndex); |"@E"Za^
} ]X-ZRmB`
} $*@mxwMQ}
,g6.d#c
} [J*)r8ys
v=`VDQWq
Shell排序: f0^s*V+
c}{e,t
package org.rut.util.algorithm.support; VKs$J)6
UW>~C
import org.rut.util.algorithm.SortUtil; tSOF7N/<
uZQ)A,#n;
/** p 3_Q
* @author treeroot n"MFC
* @since 2006-2-2 }'Z(J)Bg
* @version 1.0 UPgZj\t%{
*/ G A7
public class ShellSort implements SortUtil.Sort{ VvltVYOZA
r":<1+07
/* (non-Javadoc) GUcuD^Fe
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |Y])|`_'G
*/ 2cmqtlW"
public void sort(int[] data) { [&zP$i&
for(int i=data.length/2;i>2;i/=2){ i"-#1vy=
for(int j=0;j insertSort(data,j,i); VK NCK
} U2bb|6j
} ,3Wa~\/Q
insertSort(data,0,1); 7)a=B! 8M
} A+
f{j
*v8 ]99N
/** -J[D:P.Z
* @param data a.Mp1W
* @param j ;pU LJ}rDb
* @param i O}KT>84M
*/ c~tkY!c
private void insertSort(int[] data, int start, int inc) { %WO;WxG8^
int temp; ~q1s4^J
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); d?S<h`{x
} 6?KsH;L9
} QOP*vH >J
} nTHP~]
r1=Zoxc=w
} v)pdm\P
c{852R
快速排序: F`ihw[
Wn
K]7@%cS
package org.rut.util.algorithm.support; =T\pq8
'@:;oe@]
import org.rut.util.algorithm.SortUtil; vw(};)8
zcNV<tx
/** oZ8SEC"]
* @author treeroot Z>D7C?v:(
* @since 2006-2-2 U^,ld`
* @version 1.0 A] F K\
*/ >kB?C!\
public class QuickSort implements SortUtil.Sort{ l s_i)X
WK=!<FsC$
/* (non-Javadoc) {<]abO
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) r`&ofk1K
*/ ("TI~
public void sort(int[] data) { *in_Zt3
quickSort(data,0,data.length-1); L8$7^muad
} gVD!.
private void quickSort(int[] data,int i,int j){ .:;i*
int pivotIndex=(i+j)/2; m.$Oo
Mu'
file://swap q&N&n%rbm
SortUtil.swap(data,pivotIndex,j); K crF=cA
*|jqRfa"
int k=partition(data,i-1,j,data[j]); Ft|a/e
SortUtil.swap(data,k,j); NKMB,b
if((k-i)>1) quickSort(data,i,k-1); 8=SNLO
if((j-k)>1) quickSort(data,k+1,j); .O,gl$y}
te:VYP
} Y#Z&$&n
/** svQDSif
* @param data @-7K~in?^
* @param i J=Jw"? f
* @param j p@^2.O+
* @return R8?A%yxf
*/ co*5NM^
private int partition(int[] data, int l, int r,int pivot) { 'fgDe
do{ f.u{;W
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); E O}(MXS
SortUtil.swap(data,l,r); N[mOJa:
} PzF)Vg
while(l SortUtil.swap(data,l,r); =CJs&Qa2
return l; vi=yR
} m+!%+S1
X)|%[aX}q
} |W::\yu6
WAQv4&xGM
改进后的快速排序: |UBJu `%
LZ@^ A]U
package org.rut.util.algorithm.support; >LNl8X:Cz*
^X?[zc GE
import org.rut.util.algorithm.SortUtil; Psv-y
AfY(+w6!K
/** kBT cND|
* @author treeroot .p5*&i7
* @since 2006-2-2 I4)vJ0
* @version 1.0 "y`?KY$[N
*/ w gufk{:
public class ImprovedQuickSort implements SortUtil.Sort { 'z\F-Ttq
ar{e<&Bny
private static int MAX_STACK_SIZE=4096; ?^7~|?v
private static int THRESHOLD=10; {7;TQ?/
/* (non-Javadoc) FJD*A`a
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) kj[[78
*/ E>[~"~x"pV
public void sort(int[] data) { T&h|sa(
int[] stack=new int[MAX_STACK_SIZE]; [R~HhM
(Hsfrc
int top=-1; c9&
8kq5
int pivot; u|Ai<2b$
int pivotIndex,l,r; ZqhINM*Rm
''(T3;^ +
stack[++top]=0; z4<h)hh"k6
stack[++top]=data.length-1; 4bKZ@r%
d,>l;l
while(top>0){ ;xRyONt
int j=stack[top--]; 9fV 57
int i=stack[top--]; LO2sP"9
#(A>yW702
pivotIndex=(i+j)/2; Gh< r_O~L3
pivot=data[pivotIndex]; ;<* VwXJR
3Y8%5/D5
SortUtil.swap(data,pivotIndex,j); OU[Sm7B
2
o.Mh/D0
file://partition ClEtw
l=i-1; P--#5W;^oB
r=j; 's9)\LS>p
do{ +F@9AO>LF
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ?$gEX@5h
SortUtil.swap(data,l,r); mbd@4u
} >Qi2;t~G
while(l SortUtil.swap(data,l,r); )S5Q5"j&=f
SortUtil.swap(data,l,j); %8v?dB;>x`
_ '}UNIL
if((l-i)>THRESHOLD){ +Oxl1fDf
stack[++top]=i; @Pa ;h
stack[++top]=l-1; m=#2u4H4
} x;C\G`9N
if((j-l)>THRESHOLD){ P!-9cd1C,
stack[++top]=l+1; /2YI!U@A
stack[++top]=j; :${Lm&J
} Xl}>mbB
\ET7
} :_vf1>[
file://new InsertSort().sort(data); V43|Ej}E
insertSort(data); )Z]8SED
}
a|OX4
/** \oaO7w,:"
* @param data }3QEclZr
*/ O6m}#?Ai/@
private void insertSort(int[] data) { [aIQ/&