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。 W!B4<'Fjc
插入排序: >T^v4A
a[cH@7W.#
package org.rut.util.algorithm.support; E=*Q\3G~
wEc5{ b5M
import org.rut.util.algorithm.SortUtil; 7CMgvH)O
/** cH-Zj
* @author treeroot J<* Mk
* @since 2006-2-2 0a%ui2k
* @version 1.0 9S1V!Jp
*/ 64>[pZF8
public class InsertSort implements SortUtil.Sort{ w&cyGd D5
uBkny;
/* (non-Javadoc) 7=*k@9
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) K$GXXE`
*/ J+gsmP-_
public void sort(int[] data) { :{uUc
int temp; s(.-bjR
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ZxPAu% Y
} ~ A|*]0,
} q;PzB4#
} 3D
dG$@
(3r,PS@Qq@
} G ]By_
>t}D5ah
冒泡排序: 4:PP[2?
3'e 4{
package org.rut.util.algorithm.support; &.4_4"l(
km^+
mK
import org.rut.util.algorithm.SortUtil; O~0
1)%
#p`7gFl
/** , tj7'c$0
* @author treeroot L^s;kkB
* @since 2006-2-2 8J1.(Mwb?
* @version 1.0 J*C*](
*/ \bSHBTK
public class BubbleSort implements SortUtil.Sort{ IEf^.Z
:{Z^ _;Tf
/* (non-Javadoc) p&l:937
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k $&A
*/ B9:0|i!!A`
public void sort(int[] data) { 2A
,36,
int temp; BVp.A]
for(int i=0;i for(int j=data.length-1;j>i;j--){ K3D $
hb
if(data[j] SortUtil.swap(data,j,j-1); '+zsj0!A
} ahv=HWX k
} oA@^N4PD
} mXaUWgO
} P`"DepeD
.WE0T|qDX
} ;_&L^)~P$
&L~rq)r/&
选择排序: ?.ihWbW_
>G~;2K[
package org.rut.util.algorithm.support; MA6%g} o
obolDha
import org.rut.util.algorithm.SortUtil; E_rC"_Zte
C8q-gP[
/** 8!>pFVNJf
* @author treeroot 6D(m8
* @since 2006-2-2 ,sl.:C 4
* @version 1.0 6
74X)hB
*/ Qf]!K6eR
public class SelectionSort implements SortUtil.Sort { FQ)Ekss~C
".<p R}
qp
/* e'&{KD,-T
* (non-Javadoc) rP4@K%F9jB
* 9ksrr{tW
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) BZshTP[`
*/ 5xUPqW%3
public void sort(int[] data) { y<(.,Nb8
int temp; ;f~'7RKy!G
for (int i = 0; i < data.length; i++) { %TgM-F,8
int lowIndex = i; 9Bw"VN]W
for (int j = data.length - 1; j > i; j--) { vy?YA-
if (data[j] < data[lowIndex]) { e5KF ~0`
lowIndex = j; Sn&%epi
} Y|nTc.A
} eqCB2u"Jq
SortUtil.swap(data,i,lowIndex); \s'6)_
} ?0Zw ^a
} _0E,@[
xII!2.
} ]XyJ7esg
So`"z[5
Shell排序: R&xd
ic!
;A!i V|
package org.rut.util.algorithm.support; *2;3~8Y
L 3@wdC~0
import org.rut.util.algorithm.SortUtil; c= uORt>
mH .I!
/** +8I0.,'
* @author treeroot a!]%@A6p
* @since 2006-2-2 7yl'!uz)9
* @version 1.0 92Iv'(1ba
*/ blv6
public class ShellSort implements SortUtil.Sort{ f}eVfAf
WpZ^R;eK
/* (non-Javadoc) ')cu/
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7Y:s6 R|
*/ Q pq0j^\
public void sort(int[] data) { xE_[=7=
for(int i=data.length/2;i>2;i/=2){ UUq9UV-h
for(int j=0;j insertSort(data,j,i); [y>.)BU
} Cj9Tj'0@I+
} &KWh5S@w
insertSort(data,0,1); th,qq
} ^5}3FvW
=`H(`2
/** jN0v<_PJED
* @param data w2L)f,X
* @param j $h9!"f[|j
* @param i "o^zOU
*/ [~wcHE
private void insertSort(int[] data, int start, int inc) { dM$S|,H
int temp; &tIm
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); r%i{a
} eSU8/9B
} ~Y[1Me
} QCw<* Id+
WAbhBA
} l1S1CS
K<tg+(3
快速排序: JnDR(s4(E
add-]2`
package org.rut.util.algorithm.support; CjGI}t
A )cb
import org.rut.util.algorithm.SortUtil; HZ3<}`P_W
i1C'
/** <0m;|Ai'W
* @author treeroot R?Qou!*]
* @since 2006-2-2 J:a^''
* @version 1.0 QR)eJ5<
*/ -(EqBr@_
public class QuickSort implements SortUtil.Sort{ v5o%y:~
{Xj%JE[V
/* (non-Javadoc) T9A5L"-6T
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 8J0tya"z
*/ G'Y|MCKz>
public void sort(int[] data) { 4dP_'0]9A:
quickSort(data,0,data.length-1); yrX]w3kr%
} nDvWOt
private void quickSort(int[] data,int i,int j){ xT/&'$@{)
int pivotIndex=(i+j)/2; LmE-&
file://swap ;D:v@I$I
SortUtil.swap(data,pivotIndex,j); ^8iy(
~cjvo?)&e;
int k=partition(data,i-1,j,data[j]); 5cU8GgN`
SortUtil.swap(data,k,j); ~08v]j
q
if((k-i)>1) quickSort(data,i,k-1); ?)&TewP
if((j-k)>1) quickSort(data,k+1,j); iu 'yB
YS*t7
} ~ocr^V{"<~
/** *))|ZE6jI
* @param data +j,;g#d
* @param i
^&}Y>O,
* @param j b%BwGS(z
* @return sXWMXQ3
*/ g;pFT
private int partition(int[] data, int l, int r,int pivot) { 62"ND+D4
do{ z!%}0
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); y}VKFRky
SortUtil.swap(data,l,r); QS_u<B
} Z&%61jGK
while(l SortUtil.swap(data,l,r); ;p/@tr9
return l; w%ForDB>P
} qv:WC
TAn
MAXdgL[]
} ,RZktWW_
Wg[`H=)Q
改进后的快速排序: L4!$bB~L-
xiI!_0'
package org.rut.util.algorithm.support; &z