社区应用 最新帖子 精华区 社区服务 会员列表 统计排行 社区论坛任务 迷你宠物
  • 8861阅读
  • 0回复

[JAVA]用Java实现的各种排序

级别: 终身会员
发帖
3743
铜板
8
人品值
493
贡献值
9
交易币
0
好评度
3746
信誉值
0
金币
0
所在楼道
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。 E J 9A 4B  
插入排序: ^wX_@?aKtt  
t'z] <7  
package org.rut.util.algorithm.support; 3{:d$- y  
{ }>"f]3  
import org.rut.util.algorithm.SortUtil; =U^B,q  
/** SkK=VeD>8  
* @author treeroot p}j{ <y  
* @since 2006-2-2 A\=:h  AQ  
* @version 1.0 B aXzz  
*/ js>6Du  
public class InsertSort implements SortUtil.Sort{ 'dx4L }d  
>s1HQSe66  
/* (non-Javadoc) Jcy`:C\Ay  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @]OI(B  
*/ #Q;#A |EZ  
public void sort(int[] data) { :}E*u^v K  
int temp; j Sddjs  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); jL 2f74?1  
} 1z8.wdWJ}  
} 6R?J.&|  
} {B[i|(xQx  
u'=#~'6  
} z9VQsC'K  
K7CiICe  
冒泡排序: |ejrE,~1vb  
u]zb<)'_  
package org.rut.util.algorithm.support; S;CT:kG6Y{  
FL`. (,  
import org.rut.util.algorithm.SortUtil; ysL8w"t  
bf}r8$,  
/** A]R"C:o  
* @author treeroot 0}aJCJ9sx=  
* @since 2006-2-2 BURiLEYZl  
* @version 1.0 ?lbX.+  
*/ oE5+   
public class BubbleSort implements SortUtil.Sort{ d *H-l3N  
dkCSqNFL)  
/* (non-Javadoc) >0512_J+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tl#hCy  
*/ "b2Mk-qP  
public void sort(int[] data) {  gs9f2t  
int temp; !N!M NsyDz  
for(int i=0;i for(int j=data.length-1;j>i;j--){ <nIU]}q  
if(data[j] SortUtil.swap(data,j,j-1); H4%wq  
} pKp#4Js  
} 71wyZJ  
} VM-J^  
} 6C)OO"Bc  
c5Offnq'1  
} s2v\R~T  
DNL TJrN  
选择排序: ]Q^oc  
+!w?g/dV  
package org.rut.util.algorithm.support; X2o5Hc)l<  
Gew0Y#/  
import org.rut.util.algorithm.SortUtil; Xst&QKU  
.%D] z{''  
/** Ws(BouJ  
* @author treeroot _Hkc<j/e~  
* @since 2006-2-2 v^KJU +  
* @version 1.0 ?t<wp3bZ  
*/ d[ {=/~0  
public class SelectionSort implements SortUtil.Sort { I |BLAm6j  
bZa?h.IF  
/* E4 JS   
* (non-Javadoc) M"~B_t,Nw  
* w/ZV9"BhE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZVda0lex&  
*/ =L&_6lb  
public void sort(int[] data) { bp5hS/A^1w  
int temp; BhNwC[G?m  
for (int i = 0; i < data.length; i++) { ' Bdvqq  
int lowIndex = i; z#O{rwnl  
for (int j = data.length - 1; j > i; j--) { x~KS;hA  
if (data[j] < data[lowIndex]) { b/<4\f  
lowIndex = j; X~W5Z(w(O  
} A7ck-9dT/L  
} g,x$z~zU{  
SortUtil.swap(data,i,lowIndex); idz6m]{~yT  
} o'R_kadN[T  
} hydn" 9;  
I7]45pF  
} r`6XF  
nj)M$'  
Shell排序: C%G-Ye|@  
gNe{P~ $=  
package org.rut.util.algorithm.support; !'n+0  
|nMbf  
import org.rut.util.algorithm.SortUtil; :qw:)i  
aiUn bP  
/** VSM%<-iQ  
* @author treeroot 9KCnitU  
* @since 2006-2-2 6V!yfps)  
* @version 1.0 vO <;Gnh~  
*/ uy7)9w  
public class ShellSort implements SortUtil.Sort{ 5>$*#0%"}  
:Im_=S[0  
/* (non-Javadoc) 0]NjsOU =  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +X.iJ$)  
*/ +U@P+;  
public void sort(int[] data) { Bxz{rR0XV  
for(int i=data.length/2;i>2;i/=2){ R"K{@8b  
for(int j=0;j insertSort(data,j,i); ]uj H7T  
} W._vikR  
} ])0&el3-  
insertSort(data,0,1); XWk/S $-d  
} ^8E/I]-  
p5>TL!4M  
/** b(K.p?bt  
* @param data B*K%&w10~  
* @param j [Fj h  
* @param i U{{RRK|  
*/ l&5| =  
private void insertSort(int[] data, int start, int inc) { z_r W1?|  
int temp; vy6NH5Q  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); :P;#Y7}Y$  
} }?8KFe7U  
} nM\W a  
} {h|3P/?7  
S ^2'O7uj  
} $Pl>T09d  
7{/qQGL  
快速排序: B8;_h#^q  
UV@<55)K  
package org.rut.util.algorithm.support; z{;W$SO 2  
C n4|qX"&t  
import org.rut.util.algorithm.SortUtil; aD 24)?db-  
> aN@)=h}  
/** H;Z{R@kf  
* @author treeroot ]Cbht\Ag"  
* @since 2006-2-2 ()3+! };  
* @version 1.0 \ >1M?  
*/ }MuXN<DDb  
public class QuickSort implements SortUtil.Sort{ *)g*5kKN  
jAN(r>zVL  
/* (non-Javadoc) eAm7*2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) B3)#Ou2  
*/ [uZU p*.V  
public void sort(int[] data) { ?jz{fU  
quickSort(data,0,data.length-1); st/Tb/  
} sW|u}8`  
private void quickSort(int[] data,int i,int j){ )<IbQH|_  
int pivotIndex=(i+j)/2; bbA+ZLZJn  
file://swap #d(6q$IE  
SortUtil.swap(data,pivotIndex,j); 9CUMqaY2  
p^\>{  
int k=partition(data,i-1,j,data[j]); }# w>>{Q  
SortUtil.swap(data,k,j); ur9-F^$  
if((k-i)>1) quickSort(data,i,k-1); E(8O3*=  
if((j-k)>1) quickSort(data,k+1,j); ra$_#HY  
gd#  
} 2zArAch  
/** -V_e=Y<J/  
* @param data &hjrJ/'^  
* @param i L$lo5  
* @param j WNlWigwYl  
* @return LEHlfB#z`@  
*/ 6Q>:g"_  
private int partition(int[] data, int l, int r,int pivot) { rbQA6_U 5A  
do{ LTBqXh  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Eu1s  
SortUtil.swap(data,l,r); tul5:}x3  
} x\I9J4Q  
while(l SortUtil.swap(data,l,r); 0`,a@Q4  
return l; M /Bn^A8@  
} o6Vc}jRH  
?HZ+fS ,-  
} )Ky 0q-W  
>:KPvq!0  
改进后的快速排序: gHYYxhW$  
Gd:fWz(  
package org.rut.util.algorithm.support; 0y2iS' t  
eEezd[p  
import org.rut.util.algorithm.SortUtil; P0}uTee  
PM o>J|^  
/** RrKs!2sCT  
* @author treeroot tGv4 S\  
* @since 2006-2-2 S WYiI  
* @version 1.0 &eK8v]|"W  
*/ a+r0@eFLc  
public class ImprovedQuickSort implements SortUtil.Sort { j~Rh_\>Q  
lq1pgM?Kf  
private static int MAX_STACK_SIZE=4096; lZ/Yp~2S  
private static int THRESHOLD=10; EQu M|4$ix  
/* (non-Javadoc)  1=W>zC  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) B5J=q("P  
*/ cz&FOP+!  
public void sort(int[] data) { {.Nt#l  
int[] stack=new int[MAX_STACK_SIZE]; wzP>Cq  
B>|@XfPM  
int top=-1; nyTfTn  
int pivot; +4B>gS[ F  
int pivotIndex,l,r; )CihqsA2  
 Ur]5AJ  
stack[++top]=0; 2Hy$SSH  
stack[++top]=data.length-1; j YO #  
`4(k ?Pk2  
while(top>0){ won%(n,HT  
int j=stack[top--]; 3mr9}P9;  
int i=stack[top--]; y*|"!FK  
(Cqhk:F  
pivotIndex=(i+j)/2; WAkKbqJV  
pivot=data[pivotIndex]; Sf lHSMFw  
q3 1swP  
SortUtil.swap(data,pivotIndex,j); :2K0/@<x  
F4Z+)'oDr,  
file://partition ix*n<lCoC  
l=i-1; [fO \1J  
r=j; ~ hYG%  
do{ U1J?o #(  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); / u>")f  
SortUtil.swap(data,l,r); a&wl-  
} vSPkm)O0)  
while(l SortUtil.swap(data,l,r); #RZW)Br  
SortUtil.swap(data,l,j); <_ddGg~  
mqw& SxU9  
if((l-i)>THRESHOLD){ ] 6M- s  
stack[++top]=i; 1Cp5a2{  
stack[++top]=l-1; ^Shz[=fd  
} GC#3{71  
if((j-l)>THRESHOLD){ fh}\#WE"  
stack[++top]=l+1; }(20MW8rMc  
stack[++top]=j; EcBSi995dj  
} ZU7,=B=  
+hV7o!WxC  
} <gQw4  
file://new InsertSort().sort(data); Rb|\!  
insertSort(data); %0$$tS +  
} "4oY F:h  
/**  ()=  
* @param data iK= {pd  
*/ ;~#rd L  
private void insertSort(int[] data) { N[ z7<$$  
int temp; UIovv%7zZ  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); SA)}---"  
} _l{G Hz  
} *";,HG?|Iz  
} 28>gAz.#  
8;-a_VjA)  
} /mo4Q?^  
wh[XJ_xY  
归并排序: 2u/~#Rt&*  
j%#n}H  
package org.rut.util.algorithm.support; Jf YO|,  
Iyz};7yVI  
import org.rut.util.algorithm.SortUtil; Ca0~K42~  
T B1E1  
/** q} U^H  
* @author treeroot CAX|[  
* @since 2006-2-2 uIiE,.Uu}  
* @version 1.0 @s b\0}  
*/ H YZ94[Ti  
public class MergeSort implements SortUtil.Sort{ J-au{eP^  
r**u=q %p  
/* (non-Javadoc) p. SEW5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) hdXdz aNS  
*/ H3H3UIIT_  
public void sort(int[] data) { Uw8O"}U8  
int[] temp=new int[data.length]; CC;T[b&  
mergeSort(data,temp,0,data.length-1); '+hiCX-_  
} `$ql>k-6C  
$H6ngL  
private void mergeSort(int[] data,int[] temp,int l,int r){ [?da BXS  
int mid=(l+r)/2; /q!_f!<q4x  
if(l==r) return ; {@Z*.G^  
mergeSort(data,temp,l,mid); nVGOhYn  
mergeSort(data,temp,mid+1,r); S Z &[o&H  
for(int i=l;i<=r;i++){ FH;)5GGnv  
temp=data; uuy0fQQ8ti  
} M[e{(iQ:  
int i1=l; 3>^B%qg6  
int i2=mid+1; ~\zIb/ #  
for(int cur=l;cur<=r;cur++){ %F<3_#Y  
if(i1==mid+1) C%P.`NxA  
data[cur]=temp[i2++]; K81&BVx/  
else if(i2>r) P[e#j  
data[cur]=temp[i1++]; iT1HbAT]  
else if(temp[i1] data[cur]=temp[i1++]; x o72JJ  
else *C> N  
data[cur]=temp[i2++]; @!(V0-  
} lPz5.(5'  
} ;bq EfV0`2  
i^/ H>E%u  
} <"S/M]9  
KpO%)M!/Z#  
改进后的归并排序: r\|"j8  
.r@'9W^8  
package org.rut.util.algorithm.support; u?8e>a  
Q\$cBSJC1  
import org.rut.util.algorithm.SortUtil; ralU9MN.  
2K2jko9'a  
/** $7\hszjZ  
* @author treeroot JI92Dc*o  
* @since 2006-2-2 8SMa5a{  
* @version 1.0 e#4 iue7U  
*/ AFNE1q;{\  
public class ImprovedMergeSort implements SortUtil.Sort { kC+dQ&@g{  
vu)V:y  
private static final int THRESHOLD = 10; OH~I+=}.  
hfQ^C6yR  
/* $h'>Zvf  
* (non-Javadoc) Lmyw[s\U  
* |7G=f9V  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H3o Um1  
*/ cUr'mb  
public void sort(int[] data) { $qhVow5~  
int[] temp=new int[data.length]; O.P:~  
mergeSort(data,temp,0,data.length-1); h&?tF~h  
} 26c1Yl,DMn  
t8b,@J`R  
private void mergeSort(int[] data, int[] temp, int l, int r) { C$EvcF% 1  
int i, j, k; i52:<< 8a  
int mid = (l + r) / 2; .e%B'  
if (l == r) $`/J V?Z  
return; E@\bFy_!>b  
if ((mid - l) >= THRESHOLD) }\!38{&  
mergeSort(data, temp, l, mid); p[-bu B]  
else FA;uu\  
insertSort(data, l, mid - l + 1); *1;}c z  
if ((r - mid) > THRESHOLD) fmj-&6  
mergeSort(data, temp, mid + 1, r); ySwvjP7f  
else uia-w^F e  
insertSort(data, mid + 1, r - mid); R%N&Y~zH  
``mW\=fe  
for (i = l; i <= mid; i++) { ,~- dZs  
temp = data; 8z, |N#  
} NbnuQPb'  
for (j = 1; j <= r - mid; j++) { -kd_gbnr3  
temp[r - j + 1] = data[j + mid]; ~;0J 4hR  
} u9"1%  
int a = temp[l]; O)!MWmr  
int b = temp[r]; f ^f{tOX  
for (i = l, j = r, k = l; k <= r; k++) { #b4Pn`[   
if (a < b) { |JW-P`tL0  
data[k] = temp[i++]; {'#^  
a = temp; 29E9ZjSK  
} else { \f_YJit  
data[k] = temp[j--]; %maLo RJ  
b = temp[j]; RHGs(d7-  
} )5U&^tJ  
} T7=~l)I  
} =?f\o*J)  
lT3, G#(  
/** |:i``gFj  
* @param data 5M2G ;o  
* @param l ;Qc_Tf=,  
* @param i 8L<GAe  
*/ 7usf^g[dh  
private void insertSort(int[] data, int start, int len) { "[(I*  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 5/v@VUzH  
} #eT{?_wM  
} FXPw 5  
} H`$s63  
} nkp!kqJ09  
iQ9jt  
堆排序: X#mppMU  
 ajayj|h  
package org.rut.util.algorithm.support; o5\nqw^  
&z r..i4O  
import org.rut.util.algorithm.SortUtil; 2rq)U+   
[*O#6Xu  
/** j|&?BBa9  
* @author treeroot eXI^9uH  
* @since 2006-2-2 D^Bd>Ey4  
* @version 1.0 >uuP@j  
*/ BOLG#}sm  
public class HeapSort implements SortUtil.Sort{ hmOhXE[ a&  
n)w@\ Uy c  
/* (non-Javadoc) L\8 tqy.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %QUV351H  
*/ XX5 ):1  
public void sort(int[] data) { 7CzZHkTg  
MaxHeap h=new MaxHeap(); >8~+[e  
h.init(data); 8W 9%NW3&  
for(int i=0;i h.remove(); !Jw   
System.arraycopy(h.queue,1,data,0,data.length); t+k"$zR  
} 3VbQDPG  
_^'fp  
private static class MaxHeap{ Dcq\1V.e`W  
<D4.kM  
void init(int[] data){ tnz BNW8  
this.queue=new int[data.length+1]; MPMJkL$F^  
for(int i=0;i queue[++size]=data; /_?E0 r  
fixUp(size); YBN. waL  
} |lIkmW{  
} yOGa W~  
*usfJ-  
private int size=0; F8?&Ql/hdz  
]`&EB~K&NY  
private int[] queue; `,4"[6S  
$!Z6?+  
public int get() { 2i#wJ8vrF  
return queue[1];  ;uNcrv0J  
} mCe,(/>l+  
&"fMiK3  
public void remove() { A"k6n\!n;  
SortUtil.swap(queue,1,size--); q[Hx y  
fixDown(1); ;Br8\2=$  
} Ze'AZF  
file://fixdown {IJV(%E   
private void fixDown(int k) { <0vQHND,3  
int j; db:b%1hk:  
while ((j = k << 1) <= size) { ?7^H1L  
if (j < size %26amp;%26amp; queue[j] j++; +O}6 8 N  
if (queue[k]>queue[j]) file://不用交换 XRKL;|cd  
break; )MLOYX  
SortUtil.swap(queue,j,k); RyC]4 QyC  
k = j; =;0#F&  
} Miqu  
} mKtZ@r)u  
private void fixUp(int k) { f GE+DjeA  
while (k > 1) { x:O?Fj  
int j = k >> 1; bS<lB!  
if (queue[j]>queue[k]) 2BBGJE  
break; 0K`3BuBs  
SortUtil.swap(queue,j,k); K7Kd{9-2  
k = j; &4sUi K"  
} }XWic88!~  
} .JZoZ.FAb  
"2)<'4q5)  
} WZ'8{XY8  
;#P@(ZVT  
} mfQQ<Q@  
RD_&m?d  
SortUtil: 4\x'$G  
"3LOL/7f  
package org.rut.util.algorithm; R8F[ 7&(  
[Pi8gj*  
import org.rut.util.algorithm.support.BubbleSort; u^|XQWR$:  
import org.rut.util.algorithm.support.HeapSort; u1/4WYJeJ  
import org.rut.util.algorithm.support.ImprovedMergeSort; /$'tO3  
import org.rut.util.algorithm.support.ImprovedQuickSort; 49^;T;'v  
import org.rut.util.algorithm.support.InsertSort; ,h5\vWZ  
import org.rut.util.algorithm.support.MergeSort; +'2Mj|d@p  
import org.rut.util.algorithm.support.QuickSort; a[]=*(AZI  
import org.rut.util.algorithm.support.SelectionSort; VmHok  
import org.rut.util.algorithm.support.ShellSort; $GNN* WmHw  
[!,&A{.!  
/** 3_~V(a  
* @author treeroot )9 5&-Hs  
* @since 2006-2-2 $FZ~]Ef  
* @version 1.0 HhhN8t  
*/ QUVwO m  
public class SortUtil { h^D? G2O  
public final static int INSERT = 1; |sMRIW,P  
public final static int BUBBLE = 2; 'U.)f@L#w  
public final static int SELECTION = 3; /jaTH_Q),:  
public final static int SHELL = 4; fchsn*R%-  
public final static int QUICK = 5; .C$S DhJ~  
public final static int IMPROVED_QUICK = 6; UX;?~X  
public final static int MERGE = 7; 7/a[;`i*!  
public final static int IMPROVED_MERGE = 8; L/_h5Q:'W  
public final static int HEAP = 9;  gPh;  
?>cx; "xF  
public static void sort(int[] data) { >N62t9Ll[  
sort(data, IMPROVED_QUICK); c [sydl  
} 9u^PM  
private static String[] name={ &YGd!Q  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 6X~.J4  
}; ^[,Q2MHCT(  
x^Q:U1  
private static Sort[] impl=new Sort[]{ ,7KP  
new InsertSort(), 7n9&@D3 :P  
new BubbleSort(), ]W~\%`#8?  
new SelectionSort(), ;{EIx*<d  
new ShellSort(), O;z:?  
new QuickSort(), y$|%K3  
new ImprovedQuickSort(), px8988X  
new MergeSort(), $nF|n+m  
new ImprovedMergeSort(), 4l7TrCB  
new HeapSort() S[J eW  
}; $s+/OgG4H  
AD K)p?  
public static String toString(int algorithm){ M<^]Ywq*p  
return name[algorithm-1]; [~*5uSG  
} ?g^42IYG  
5xC4lT/U  
public static void sort(int[] data, int algorithm) { )12.W=p  
impl[algorithm-1].sort(data); 3 9to5 s,  
} G%^jgr)  
L#O1 >  
public static interface Sort { \ne1Xu:hM  
public void sort(int[] data); dp#JvZb  
} E@ J/_l;  
lC/1,Z/M  
public static void swap(int[] data, int i, int j) { #(swVo:+E  
int temp = data; `ppyCUX  
data = data[j]; 7irpD7P>  
data[j] = temp; &H8wYs  
} Zc9@G-  
} %O6r  
评价一下你浏览此帖子的感受

精彩

感动

搞笑

开心

愤怒

无聊

灌水
描述
快速回复

您目前还是游客,请 登录注册
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
10+5=?,请输入中文答案:十五