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。 Inoou'jX
插入排序: DR=1';63
x{5*%}lX8
package org.rut.util.algorithm.support; i i
Y[
k]sT'}[n
import org.rut.util.algorithm.SortUtil; zb$U'D_-f
/** 'M/&bu r
* @author treeroot C(hg"_W ou
* @since 2006-2-2 [X]o`
* @version 1.0 t]XJq
*/ UkKpSL}Q2
public class InsertSort implements SortUtil.Sort{ qo|iw+0Y
v_h{_b8
/* (non-Javadoc) ?sE21m?b-
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) gV BV@v!W
*/ $!w%=
public void sort(int[] data) { (%, '
int temp; @su,w,xLS
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); nX'.'3
} /+YWp>6LU
} V:18]:
} :f:C*mYvu
"Q4{6FH+mB
} \PJ89u0
iL<O|' be
冒泡排序: I^=M>_s4
"?-s
Qn
package org.rut.util.algorithm.support; eH6cBX#P.
i9tM]/SP
import org.rut.util.algorithm.SortUtil; L zC~> Uj
O*7
pg
/** f0+
* @author treeroot DK;-2K
* @since 2006-2-2 g=8e.Y*Fr
* @version 1.0 ?Fu.,srt
*/ 5N0H^
public class BubbleSort implements SortUtil.Sort{ g>f394j
$-73}[UA 4
/* (non-Javadoc) `PfC:L
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ]vMft?
*/ S0cO00_ob
public void sort(int[] data) { hrK^oa_[W
int temp; IT|CfQ [D
for(int i=0;i for(int j=data.length-1;j>i;j--){ pP&~S<[
if(data[j] SortUtil.swap(data,j,j-1); Lq.k?!D3uh
} |n;7fqK
} 4<|]k?@
} 2z:9^a/]Na
} 62) F
cxV3Vrx@A
} '1<QK
}J1#UH_E
选择排序: Tec6]
:
?fGY,<c
package org.rut.util.algorithm.support; c9V'Z d#
{1[8,Ho
import org.rut.util.algorithm.SortUtil; %Ok.XBS)
vHmn)d1pl
/** %0QYkHdFR`
* @author treeroot IV76#jL
* @since 2006-2-2 #%~wuCn<K
* @version 1.0 u}$3.]-.?T
*/ kmwFw>#
public class SelectionSort implements SortUtil.Sort { ~Q5HM
Wp $\>
/* *&s_u)b
* (non-Javadoc) FsjblB3?E
* R4?/7
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ja2LXM
*/ .vg;K@{
public void sort(int[] data) { oVdmgmT.Y
int temp; <>cajQ@
for (int i = 0; i < data.length; i++) { G6FknYj
int lowIndex = i; DwPl,@T_i\
for (int j = data.length - 1; j > i; j--) { qmhHHFjQ
if (data[j] < data[lowIndex]) { Em;zi.Y+V
lowIndex = j; .3#Tw'% G
} iM-@?!WF
} /OEj]DNY
SortUtil.swap(data,i,lowIndex); >Uz3F7nHi
} P:G^@B3^
} o/&Q^^Xj^~
A#}IbcZ|b
} 'a}pWkLB
U<$ |ET'
Shell排序: mSs%g L]g
^+88z>
package org.rut.util.algorithm.support; $P$OWp?b
B4%W,F:@
import org.rut.util.algorithm.SortUtil; /1YqDK0
W>.qGK|l
/** ==&=3
* @author treeroot F{v+z8nW
* @since 2006-2-2 NeYj[Q~xy
* @version 1.0 8WMC ~
*/ +u7mw<A
8
public class ShellSort implements SortUtil.Sort{ dXZV1e1b
YIfbcR5
/* (non-Javadoc) ]'{<O3:7
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) z ,vjY$t:/
*/ +]G;_/[2
public void sort(int[] data) { ?(Nls.c
for(int i=data.length/2;i>2;i/=2){ Xh5
z8
for(int j=0;j insertSort(data,j,i); &W1c#]q@r
} P69S[aqW
} 7+fFKZFKF
insertSort(data,0,1); i9Qx{f88
} W1 E((2
AyddkjX
/** :%R3(
&
* @param data I/ c*
?
* @param j )l^w _;
* @param i 1r$q $\
*/
W<t,Ivg
private void insertSort(int[] data, int start, int inc) { DF<_Ns!
int temp; YkTEAI|i
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); _ 95V"h
} /IODRso/!
} ^XV$J-
} ^j@,N&W:lG
<S<(wFE@4
} @#nB]qV:e
KdUmetx1
快速排序: bx1'
o}<}zTU
package org.rut.util.algorithm.support; S>nM&758
-YD6
import org.rut.util.algorithm.SortUtil; 7yK
>
5E$)Ip
/** L0}"H
.
* @author treeroot #,Rmu
* @since 2006-2-2 w _n)*he)z
* @version 1.0 ip~PF5
*/ J?HYN%
public class QuickSort implements SortUtil.Sort{ -rUn4a
7tJPjp4l
/* (non-Javadoc) ^J?I-LG
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !9B)/Xi
*/ `zF=h#i
public void sort(int[] data) { k \|Hd"T
quickSort(data,0,data.length-1); ~)ls.NXI
} Pn0V{SJOJ%
private void quickSort(int[] data,int i,int j){ B+ +:7!
int pivotIndex=(i+j)/2; .Gw;]s3
file://swap 't]=ps
SortUtil.swap(data,pivotIndex,j); D3$}S{Yw1
El,p}Bi.
int k=partition(data,i-1,j,data[j]); M(xd:Fa?
SortUtil.swap(data,k,j); ;a2TONW
if((k-i)>1) quickSort(data,i,k-1); 42mdak}\
if((j-k)>1) quickSort(data,k+1,j); |nIm$ p'
U\P ;,o
} A~u-Iv(U
/** iphe0QE[#}
* @param data x,pzX(
* @param i L"9,K8
* @param j npZ=x-ce
* @return qlO(z5Ak
*/ vn7<>k>dx
private int partition(int[] data, int l, int r,int pivot) { >O?5mfMK
do{ ex1b jM7
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); |\J8:b>}
SortUtil.swap(data,l,r); w`q):yXX
} wjDLsf,
while(l SortUtil.swap(data,l,r); f3h^R20qmO
return l; 5#~u U
} vzG(u_,9[
^<Q+=\h
} 6p])2]N>p
\^i/:
改进后的快速排序: "aHA6zTB
4fgA3%
package org.rut.util.algorithm.support; '7 SFa]tH
a~jM^b;VN
import org.rut.util.algorithm.SortUtil;
G<U MZg
6x7pqHM
/** 1)U%p
* @author treeroot rfku]A$
* @since 2006-2-2 ?*){%eE
* @version 1.0 dX?8@uzu
*/ Q)#+S(TG
public class ImprovedQuickSort implements SortUtil.Sort { lku}I4
`C9/=
private static int MAX_STACK_SIZE=4096; eJlTCXeZ|
private static int THRESHOLD=10; 3!ZndWSHV
/* (non-Javadoc) A@^Y2:pY
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d#'aT mu!
*/ -AWL :<
public void sort(int[] data) { i{vM NI{
int[] stack=new int[MAX_STACK_SIZE]; M:YtW5{
fO|oV0Rw
int top=-1; )5Mf,
int pivot; HG{r\jh
int pivotIndex,l,r; \4zb9CxOZ
~ (I'm[
stack[++top]=0; 2|8e7q: +*
stack[++top]=data.length-1; Hx5t![g2K!
ckG`^<
while(top>0){ 9)}Nx>K
int j=stack[top--]; b;A(6^V
int i=stack[top--]; QpbyC_:;$4
p;$Vw6W=
pivotIndex=(i+j)/2; ?B7n,!&~
pivot=data[pivotIndex]; 9x$Kb7'F
uY{V^c#mv
SortUtil.swap(data,pivotIndex,j); ziPE(B
J0K25w
file://partition v0v%+F#>@
l=i-1; '[V}]Z>-
r=j; LX5, _`B
do{ ]#x!mZ!
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); b+7!$
SortUtil.swap(data,l,r); ?(rJ
} SFP%UfM<