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。 o\]:!#r{T
插入排序: +-aU+7tu
Dpdn%8+Z
package org.rut.util.algorithm.support; <cDKGd
!
nCjA\$
import org.rut.util.algorithm.SortUtil; 7O+Ij9+{n
/** vdH+>l
* @author treeroot jKj=#O
* @since 2006-2-2 sArje(5Eo
* @version 1.0 t8AkdSU0
*/ b@wBR9s
public class InsertSort implements SortUtil.Sort{ C,{F0-D
xA&
/* (non-Javadoc) pG!(6V-x<E
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nrTv=*tDj
*/ 9P7xoXJ@y
public void sort(int[] data) { "B9[cDM&
int temp; vr{'FMc
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 5>ADw3z'
} 0Oc}rRH(C
} >lraYMc<rZ
} `y^zM/Ib
*U;4t/(
} X`fhln9N
5@ bc(H
冒泡排序: c{mKra
JFG",09]
package org.rut.util.algorithm.support; qukjS#>+
&0+x2e)7g
import org.rut.util.algorithm.SortUtil; YgfSC}a
~*7O(8
/** Jt2,LL:G
* @author treeroot /lLov.
* @since 2006-2-2 Vl{~@G, @
* @version 1.0 +X:J]-1)
*/ ='dLsh4P2N
public class BubbleSort implements SortUtil.Sort{ NZo<IKD$
w0 Fwd
/* (non-Javadoc) 5c:'>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) G&x'=dJ
*/ _m9~*
public void sort(int[] data) { Ky[bX
int temp; kqVg2#<@M
for(int i=0;i for(int j=data.length-1;j>i;j--){ 8^/+wa+G
if(data[j] SortUtil.swap(data,j,j-1); [8F
\;
} LkJ$aW/
} M`0(!Q}
} ]urK$
} F+ffl^BQ
";PG%_(
} Ro'jM0(KE
Md8(`@`o
选择排序: |Du,UY/
d?:`n9`
package org.rut.util.algorithm.support; r0F_;
RVc)")
hQj
import org.rut.util.algorithm.SortUtil; Q0V^PDF
0jR){G9+
/** 5ZnSA9?
* @author treeroot Y 3o^Euou
* @since 2006-2-2 +w "XNl
* @version 1.0 {]&R8?%
*/ JAc@S20v\
public class SelectionSort implements SortUtil.Sort { pO"m~ mpA
R{*_1cyW
/* DVObrL)znL
* (non-Javadoc) S?*^>Y-e;
* z*6$&sS\>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZV!R#Xv
*/ "@.Z#d|Y
public void sort(int[] data) { QTVa
int temp; |]^l^e6m
for (int i = 0; i < data.length; i++) { R=`U 4Ml;
int lowIndex = i; \).Nag +
for (int j = data.length - 1; j > i; j--) { QT#b>xV)1
if (data[j] < data[lowIndex]) { fC_zX}3
lowIndex = j; #hIEEkCp +
} 5pO]vBT
} k_]\(myq
SortUtil.swap(data,i,lowIndex); 5B%w]n
} lZ}P{d'f.
} F(deu^s%{
,#
]+HS^B
} $zdd=.!KiK
X*0k>j
Shell排序: wi>DZkR
Y|mW.
package org.rut.util.algorithm.support; 1{^CfamF
[!W5}=^H
import org.rut.util.algorithm.SortUtil; R;WW
f.#
Q-[3j
/** 9*' &5F=
* @author treeroot w{3ycR
* @since 2006-2-2 Ujf,6=M
* @version 1.0 /K f L+"^|
*/ &9RH}zv6
public class ShellSort implements SortUtil.Sort{ A*hZv|$0
v' C@jsxM
/* (non-Javadoc) + a-D#^2;
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) vyE{WkZxR
*/ 5\WUoSgy
public void sort(int[] data) { WhH!U0
for(int i=data.length/2;i>2;i/=2){ 0}B?sNr
for(int j=0;j insertSort(data,j,i); #+$ zE#je
} k=e`*LB\
} {o( *
f
insertSort(data,0,1); G(3;;F7"
}
/^Y[*5
GjEqU;XBi
/** 012Lwd
* @param data 6;gLwOeOHY
* @param j
m;c3Z-
* @param i 6Z Xu,ks}
*/ $|k%@Q>
private void insertSort(int[] data, int start, int inc) { l_6e I
int temp; xpAok]
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ^CUSlnB\(
} QCWf.@n
} 7SaiS_{:
} ^_sQG
0Q7MM6
} [P{a_(
)AI?x@
快速排序: [_V:)
YGETMIT(
package org.rut.util.algorithm.support; H37QgApB
9:Si]
Pp+S
import org.rut.util.algorithm.SortUtil; 19p8B&
uxb:^d?D!
/** "CBRPp
* @author treeroot #BsW
* @since 2006-2-2 6x/s|RWL1
* @version 1.0 }-74 f
*/ aZ6'|S;
public class QuickSort implements SortUtil.Sort{ <6/= y1QC)
0'`S,
/* (non-Javadoc) Ps3~{zH`
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `Ug tvo
*/ g8RPHjvZ
public void sort(int[] data) { W!91tzs:
quickSort(data,0,data.length-1); uaaf9SL?
} ?_%u)S*g
private void quickSort(int[] data,int i,int j){ ya.n'X14
int pivotIndex=(i+j)/2; QjJfE<h
file://swap Z5$fE7ba+
SortUtil.swap(data,pivotIndex,j); {rDq_^
LL.x11o3
int k=partition(data,i-1,j,data[j]); pw\P<9e=
SortUtil.swap(data,k,j); oR#Ob#&
if((k-i)>1) quickSort(data,i,k-1); }RIU8=P
if((j-k)>1) quickSort(data,k+1,j); <UT>PCNG
N'QqJe7Z
} JaI Kjn
/** aBxiK[[`
* @param data 7\X$7
* @param i &?y7I Pp
* @param j Rk A8
* @return WI&lj<*
*/ {~'H
private int partition(int[] data, int l, int r,int pivot) { &iBNO,v
do{ !zR)D|w&
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 1'Rmg\(
SortUtil.swap(data,l,r); Xh}&uZ`A
} FY4 T(4#
while(l SortUtil.swap(data,l,r); y^R4I_* z
return l; <( EyXV
} nZ
E )_
/8c&Axuv
} MA*
:<l
R/~,i;d>
改进后的快速排序: 0%#\w*X8
N=~~EtX
package org.rut.util.algorithm.support; J+ts
TH:W#Ot
import org.rut.util.algorithm.SortUtil;
)%F5t&lum
2w?hgNz
/** +
>nr.,qo3
* @author treeroot Q4Q pn
* @since 2006-2-2 Ur3m[07H
* @version 1.0 T$mbk3P
*/ n_23EcSy
public class ImprovedQuickSort implements SortUtil.Sort { cG_Vc[
q.W>4 k
private static int MAX_STACK_SIZE=4096; rt}^4IqL
private static int THRESHOLD=10; ?lKhzH.T
/* (non-Javadoc) pr rT:Y
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nB] Ia?
*/ wxdyF&U
n
public void sort(int[] data) { :kG)sw7
int[] stack=new int[MAX_STACK_SIZE]; iKAusWj
3i=Iu0
int top=-1; `q_<Im%I
int pivot; !Z|($21W
int pivotIndex,l,r; qINTCm j
6Hf,6>
stack[++top]=0; ,b|-rU\
stack[++top]=data.length-1; zk}{ dG^M:
L;/n!k.A
while(top>0){ K0Tg|9
int j=stack[top--]; &