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
  • 5526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。 !-1UJqO  
插入排序: &r s+x<  
s0,c4y  
package org.rut.util.algorithm.support; t|q@~B :  
9^ITP!~e*  
import org.rut.util.algorithm.SortUtil; b^b@W^\hn  
/** 0Q>f,}W%>  
* @author treeroot "IbXKS>t  
* @since 2006-2-2 M:V'vme)+  
* @version 1.0 iev02 8M  
*/ Z{"/Ae5]  
public class InsertSort implements SortUtil.Sort{ Rn6;@Cw  
"HI&dC  
/* (non-Javadoc) tA'O66.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |uT|(:i84,  
*/ O>UG[ZgW  
public void sort(int[] data) { -_&"Q4FR;+  
int temp;  5,  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ?B> { rj  
} V'TBt=!=]  
} (ZR+(+i,  
} Do-~-d4  
Z_vIGH|1  
} -0[?6.(s"  
297X).  
冒泡排序: Ax &Z=  
j} ^?3<  
package org.rut.util.algorithm.support; e7X#C)  
,S(^r1R   
import org.rut.util.algorithm.SortUtil; eZpyDw C{  
jG8W|\8  
/** ( )K,~  
* @author treeroot 1#LXy%^tO  
* @since 2006-2-2 ._2#89V  
* @version 1.0 ~)Z{ Yj9)S  
*/ ia#Z$I6  
public class BubbleSort implements SortUtil.Sort{ tKtKW5n~  
H +Dv-*i  
/* (non-Javadoc) 7Gg3$E+#*  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) B->3/dp2c'  
*/ dO/iL7K&  
public void sort(int[] data) { rH@ {[~p  
int temp; R+vago:  
for(int i=0;i for(int j=data.length-1;j>i;j--){ D; xRgHn  
if(data[j] SortUtil.swap(data,j,j-1); ~,j52obR6Z  
} T](N ^P  
} >2Z0XEe  
} Mrpz(})  
} YC(7k7  
pW{Q%"W  
} M\4pTcz{  
@Z9X^Y+u^h  
选择排序: )IN!CmpN  
&/XRiK1"0  
package org.rut.util.algorithm.support; GQ=Zp3[  
OCR`1  
import org.rut.util.algorithm.SortUtil; ~<[$.8*  
byALM  
/** H?-Byi  
* @author treeroot 8:*   
* @since 2006-2-2 %eK=5Er jx  
* @version 1.0 Sg#$ B#g  
*/ x"/DCcZ  
public class SelectionSort implements SortUtil.Sort { k:1p:&*m  
1< gY  
/* \<k5c-8Hb  
* (non-Javadoc) gumT"x .^  
* QH~;B[->  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  AT@m_d  
*/ 7X+SK&PX  
public void sort(int[] data) { SZVNu*G!H  
int temp; yjcZTvjJ  
for (int i = 0; i < data.length; i++) { u@ MUcW  
int lowIndex = i; *`D}voU  
for (int j = data.length - 1; j > i; j--) { IXjFK  
if (data[j] < data[lowIndex]) { S87E$k  
lowIndex = j; DxuT23. (  
} HW|5'opF  
} 9]u=b\fzZ  
SortUtil.swap(data,i,lowIndex); %x}iEqkU  
} BQ8vg8e]B  
} is?#wrV=K  
FA5|`  
} e@6]rl  
5"~F#vt  
Shell排序: 8PKUg "p  
80(Olf@PE  
package org.rut.util.algorithm.support; .|XG0M  
b'x26wT?  
import org.rut.util.algorithm.SortUtil; V\1pn7~V  
dnEIR5%+.  
/** =@e3I)D#?i  
* @author treeroot qr$h51C&  
* @since 2006-2-2 Sj=x.Tr\  
* @version 1.0 g|STegg  
*/ SSr#MIS?  
public class ShellSort implements SortUtil.Sort{ &A/k{(.XP  
4F[4H\>'  
/* (non-Javadoc) 7'IcgTWDZy  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =()Vrk|uK  
*/ 7+(on  
public void sort(int[] data) { `kE ;V!n?  
for(int i=data.length/2;i>2;i/=2){ RA];hQI?  
for(int j=0;j insertSort(data,j,i); o]R*6$  
} N.~zQVO#R  
} -hd@<+;E  
insertSort(data,0,1); #BLx +mLq  
} L0lqm0h  
( *&E~ g  
/** t,bQ@x{zVC  
* @param data >O;V[H2[  
* @param j u; ]4 ydp  
* @param i 9~7s*3zI  
*/ 1eP`  
private void insertSort(int[] data, int start, int inc) { )~X.x"}8k  
int temp; 1]&FB{l  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); +,g3Xqs}X  
} }Qu kn  
} &':Ecmo~`  
} U ;%cp  
F<V.OFt  
} R$|"eb5  
5&C:&=Y  
快速排序: o=zr]vv  
}srmG|@:  
package org.rut.util.algorithm.support; {sOWDM5  
E|,RM;7  
import org.rut.util.algorithm.SortUtil; o=]\Jy  
MlKSjKl" !  
/** mb\"qD5  
* @author treeroot Svicw`uX0  
* @since 2006-2-2  `1`Qu!  
* @version 1.0 969Y[XQ  
*/ ,=IGqw  
public class QuickSort implements SortUtil.Sort{ 7g7[a/Bts  
>%\&tS'  
/* (non-Javadoc) M*gbA5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) drwD3jx0xv  
*/ 6*&$ha}X  
public void sort(int[] data) { 4 (c{%%  
quickSort(data,0,data.length-1); m[}@\y  
} ljP<WD  
private void quickSort(int[] data,int i,int j){ B?nw([4m  
int pivotIndex=(i+j)/2; (=-6'23q)  
file://swap Q "vhl2RX  
SortUtil.swap(data,pivotIndex,j); "Snt~:W>  
GBY-WN4sc[  
int k=partition(data,i-1,j,data[j]); ?hmuAgOtbh  
SortUtil.swap(data,k,j); 8wEUly  
if((k-i)>1) quickSort(data,i,k-1); A8X3|<n=  
if((j-k)>1) quickSort(data,k+1,j); \\ZCi`O  
]N;\AXZ7  
} ?/}N  
/** dW5@Z-9  
* @param data Y"  Ut  
* @param i FP<mFqy  
* @param j 1/ 3<u::  
* @return _C3O^/<n4V  
*/ jO0"`|(]s  
private int partition(int[] data, int l, int r,int pivot) { PcQ\o>0")  
do{ fW w+'xF!  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); l`<1Y|  
SortUtil.swap(data,l,r); ^)p+)5l   
} ;XIDu6  
while(l SortUtil.swap(data,l,r); IZ_?1%q>}  
return l; O))YJh"'_  
} C=Tq/L w  
{ePtZyo0  
} vR7S !  
^M)+2@6  
改进后的快速排序: Ya `$.D  
m:D0O]2  
package org.rut.util.algorithm.support; 6r.#/' "  
#LR.1zZ  
import org.rut.util.algorithm.SortUtil; k`((6  
{)n@Rq\=v  
/** d:Oo5t)MN  
* @author treeroot oZ_,WwnE  
* @since 2006-2-2  X`20=x  
* @version 1.0 >{)\GK0i 7  
*/ -V&nlP  
public class ImprovedQuickSort implements SortUtil.Sort { ~l8w]R3A  
}nRTw2-z  
private static int MAX_STACK_SIZE=4096; }X/>WiGh:  
private static int THRESHOLD=10; Ye|(5f  
/* (non-Javadoc) Yosfk\D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \iRmGvT  
*/ G1a56TIN~  
public void sort(int[] data) { <{T5}"e  
int[] stack=new int[MAX_STACK_SIZE]; pkf$%{"e  
P0/Ctke;  
int top=-1; 2YQ;Kh"S   
int pivot; y8ODoXk  
int pivotIndex,l,r; 8'ut[  
jf.WmiDC  
stack[++top]=0; jcp6-XM  
stack[++top]=data.length-1; 25j?0P"&  
VGf&'nL@,  
while(top>0){ V-(*{/^"  
int j=stack[top--]; if?X^j0  
int i=stack[top--]; e>m+@4*sn  
T/PmT:Qg `  
pivotIndex=(i+j)/2; |'``pq/}_  
pivot=data[pivotIndex]; OFxCV`>ce  
!>#gm7  
SortUtil.swap(data,pivotIndex,j); ceuEsQ}  
h0 Xc=nj  
file://partition ? q_%  
l=i-1; 0a2#36;_IK  
r=j; j 8)*'T  
do{ dZY|6  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); rJ{k1H>  
SortUtil.swap(data,l,r); Kk,u{EA  
} R=3|(R+kA  
while(l SortUtil.swap(data,l,r); #w@FBFr@  
SortUtil.swap(data,l,j); |\Q2L;4C  
YwS/O N  
if((l-i)>THRESHOLD){ &Oc `|r*  
stack[++top]=i; fR b  
stack[++top]=l-1; h$XoR0  
} `-.6;T}2U  
if((j-l)>THRESHOLD){ "g*`G<W_s  
stack[++top]=l+1; K 6yD64  
stack[++top]=j; ;jJ4H+8  
} I Z|EPzS  
<KJ|U0/jGd  
} `oTV)J'~  
file://new InsertSort().sort(data); CTe!jMZ=  
insertSort(data); ;Y,zlq2  
} e8E'X  
/** XmaRg{22  
* @param data S5:&_&R8[  
*/ 8>9MeDE  
private void insertSort(int[] data) { I/%L,XyRI  
int temp; 29l bOi  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); eE_$ADEf  
} ->*~e~T  
} ]T{v~]7:{  
} &7,:: $cu  
[Op^l%BC  
} ILx4 [m7  
)%b 5uZ  
归并排序: K^h9\< w  
[&IcIZ  
package org.rut.util.algorithm.support; (+6N)9rj`/  
VN0KK 1 I  
import org.rut.util.algorithm.SortUtil; ^ZIs>.'  
Av0(zA2  
/** Rt7l`|g a+  
* @author treeroot 9f/l"  
* @since 2006-2-2 Z&4L///  
* @version 1.0 ;<*USS6X  
*/ III:j hh  
public class MergeSort implements SortUtil.Sort{ 0e07pF/!  
IEd?-L  
/* (non-Javadoc) F-F1^$]k  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H]W'mm  
*/ 6b%IPbb  
public void sort(int[] data) { ?LJiFG]^m  
int[] temp=new int[data.length]; (w#)|9Cxm  
mergeSort(data,temp,0,data.length-1); 4 aE{}jp1  
} &'`ki0Xh;  
NHQoP&OG  
private void mergeSort(int[] data,int[] temp,int l,int r){ yVQW|D0,j  
int mid=(l+r)/2; q{%~(A5*H  
if(l==r) return ; 5i}g$yjZ<  
mergeSort(data,temp,l,mid); As5-@l`@  
mergeSort(data,temp,mid+1,r); 89j:YfA=v  
for(int i=l;i<=r;i++){ L]H' ]wpn=  
temp=data; N`{ 6<Z0  
} ZNl1e'  
int i1=l; Vc6 >i|"-O  
int i2=mid+1; +* F e   
for(int cur=l;cur<=r;cur++){ D>^g2!b:  
if(i1==mid+1) l D->1=z  
data[cur]=temp[i2++]; ^QjkZ^<dD  
else if(i2>r) 4e?bkC  
data[cur]=temp[i1++]; H DD)AM&p  
else if(temp[i1] data[cur]=temp[i1++]; '? -N  
else 5wdKu,nq  
data[cur]=temp[i2++]; P_b!^sq9  
} w ~"%&SNN  
} E^gN]Z"O  
\3] O?'  
} $BT[fJ'k  
=HB(N|9_d  
改进后的归并排序: EiaP1o  
i`Qa7  
package org.rut.util.algorithm.support; 9 ~$E+ m(  
<o[3*59  
import org.rut.util.algorithm.SortUtil; W'=}2Y$]u  
jt(GXgm  
/** >y,. `ECn  
* @author treeroot ~g%Ht# <  
* @since 2006-2-2 )#1!%aQ  
* @version 1.0 2#00<t\  
*/ 2ga8 G4dU  
public class ImprovedMergeSort implements SortUtil.Sort { SkC.A ?  
b#"&]s-  
private static final int THRESHOLD = 10; -E3cS  
s|:1z"q  
/* ,jtaTG.>  
* (non-Javadoc) +Wgfxk'{  
* >)u{%@Rcy{  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 8^D1u`  
*/ 717G CL@  
public void sort(int[] data) { _yX.Apv]  
int[] temp=new int[data.length]; fP6.  
mergeSort(data,temp,0,data.length-1); OSLZ7B^  
} ^fyue~9u  
34[TM3L].  
private void mergeSort(int[] data, int[] temp, int l, int r) { *-(o. !#1  
int i, j, k; Ycx}FYTY  
int mid = (l + r) / 2; xt IF)M  
if (l == r) kwqY~@W  
return; ADVS}d!;]  
if ((mid - l) >= THRESHOLD) k4!_(X%8  
mergeSort(data, temp, l, mid); V1GkX =H},  
else 4*9t:D|}  
insertSort(data, l, mid - l + 1); s[dIWYs#  
if ((r - mid) > THRESHOLD) [k(b<'  
mergeSort(data, temp, mid + 1, r); KF5r?|8 M  
else D%LYQ  
insertSort(data, mid + 1, r - mid); Vp0_R9oQ  
#U7pT!F x  
for (i = l; i <= mid; i++) {  ^u#iz  
temp = data; Rjlp<  
} |W$|og'wC  
for (j = 1; j <= r - mid; j++) { 61_-G#W  
temp[r - j + 1] = data[j + mid]; c53:E'g  
} cH4 PrMm&  
int a = temp[l]; WRAL/  
int b = temp[r]; _%Ua8bR$  
for (i = l, j = r, k = l; k <= r; k++) { OB\ZT@l  
if (a < b) { ]h&1|j1  
data[k] = temp[i++]; 1 ?Zw  
a = temp; kM1N4N7  
} else { Cz$q"U  
data[k] = temp[j--]; Lfdg5D5.P  
b = temp[j]; ,nCvA%B!  
} CWRB/WH:  
} ~b!la  
} tJn"$A ^N  
"vQ%` Q  
/** RLL%l  
* @param data 5~T+d1md  
* @param l >Yk|(!v  
* @param i ?Yf v^DQ5  
*/ 1E'PSq  
private void insertSort(int[] data, int start, int len) { ,!GoFu  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 2K o]Q_,~  
} {&^PDa|nD  
} >3ZhPvE-p'  
} 6,M$TA  
} L<3+D  
,6pGKCUU:y  
堆排序: [^bq?w  
JR xY#k  
package org.rut.util.algorithm.support; \=[j9'N>  
NP.i,H  
import org.rut.util.algorithm.SortUtil; z$}9f*W}B  
W,[QK~  
/** 98O]tL+k/u  
* @author treeroot Lj#xZ!mQS  
* @since 2006-2-2 rFkZ'rp74b  
* @version 1.0 b SgbvnJ  
*/ surNJ,)  
public class HeapSort implements SortUtil.Sort{ J~om e7L  
%G,7Ul1f  
/* (non-Javadoc) yzT1Zg_ER  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) j}s/)}n|  
*/ Zlh 2qq  
public void sort(int[] data) { kaiK1/W0;  
MaxHeap h=new MaxHeap(); <_Z.fdUA  
h.init(data); s^IC]sW\%  
for(int i=0;i h.remove(); 9[&ByEAK  
System.arraycopy(h.queue,1,data,0,data.length); ov H'_'  
} O"EL3$9V  
@>.aQE  
private static class MaxHeap{ Y<(7u`F  
1cMLl6Bp>  
void init(int[] data){ $d])>4eQ  
this.queue=new int[data.length+1]; 89GW!  
for(int i=0;i queue[++size]=data; %t!r pyD  
fixUp(size); OHj>ufwVq  
} )\VuN-d  
} T+zhj++  
u0sN[<  
private int size=0; &~/g[\Y  
&a e!lB  
private int[] queue; ';8 ,RTe  
l;A'^  
public int get() { WQ.{Ag?1  
return queue[1]; %mU$]^Tw(  
} YQFz6#Ew  
u9~Ncz  
public void remove() { KnA BFH  
SortUtil.swap(queue,1,size--); EA1&D^nT  
fixDown(1); 9+@z:j  
} %saP>]o  
file://fixdown ?u:mscb  
private void fixDown(int k) { <pa-C2Ky  
int j; bpU> (j  
while ((j = k << 1) <= size) { oQV3  
if (j < size %26amp;%26amp; queue[j] j++; He4HI Z  
if (queue[k]>queue[j]) file://不用交换 y( 22m+B  
break; SFtcO  
SortUtil.swap(queue,j,k); MZf?48"f  
k = j; O43"-  
} ')yYpWO  
} cr ]b #z  
private void fixUp(int k) { r r\u)D#)  
while (k > 1) { a3w6&e`  
int j = k >> 1; QJVB:>A  
if (queue[j]>queue[k]) S#oBO%!  
break; fK]%*i_"  
SortUtil.swap(queue,j,k); vL[IVBG^  
k = j; X[$|I9  
} nsXG@CS:  
} O`%F{&;29  
4VeT]`C^h  
} ^q/$a2<4  
C{nk,j L  
} <& +jl($"  
-:'%YHxX  
SortUtil: 1i.3P$F  
:BV$3]y  
package org.rut.util.algorithm; ;r6YIS4@  
W-|C K&1  
import org.rut.util.algorithm.support.BubbleSort; J@<f*  
import org.rut.util.algorithm.support.HeapSort; 4Hb"yp$  
import org.rut.util.algorithm.support.ImprovedMergeSort; [4YRyx&:++  
import org.rut.util.algorithm.support.ImprovedQuickSort; No[9m_  
import org.rut.util.algorithm.support.InsertSort; q&&"8.w-  
import org.rut.util.algorithm.support.MergeSort; U&Atgv  
import org.rut.util.algorithm.support.QuickSort; U=j`RQ 9,  
import org.rut.util.algorithm.support.SelectionSort; "+qZv(  
import org.rut.util.algorithm.support.ShellSort; >FHx],  
ZlE=P4`X:  
/** :8}Qt^p  
* @author treeroot Tmu2G/yi  
* @since 2006-2-2 G,P k3>I'  
* @version 1.0 #?D[WTV  
*/ >d"\  
public class SortUtil { i?@7>Ca  
public final static int INSERT = 1; Evg#sPu\  
public final static int BUBBLE = 2; KVEc:<|x  
public final static int SELECTION = 3; ;@gI*i N"  
public final static int SHELL = 4; c2 :,  
public final static int QUICK = 5; }W!w  
public final static int IMPROVED_QUICK = 6; +lFBH(o]X  
public final static int MERGE = 7; /u9 0)x  
public final static int IMPROVED_MERGE = 8; DoO ;VF  
public final static int HEAP = 9; @cxM#N8e  
\Wppl,"6c  
public static void sort(int[] data) { s?1Aj<  
sort(data, IMPROVED_QUICK); aL;zN%Tw  
} 9fTl6?x  
private static String[] name={ PGxv4(%  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" =^*EM<WG)  
}; b">"NvlB  
Lp}V 94xT  
private static Sort[] impl=new Sort[]{ (;9fkqm%m  
new InsertSort(), QKvaTy#  
new BubbleSort(), P92pQ_W  
new SelectionSort(), =x(k)RTDu  
new ShellSort(), fMW=ss^fu-  
new QuickSort(), Nknd8>Hy+  
new ImprovedQuickSort(), =)i^E9  
new MergeSort(), RhF< {U.  
new ImprovedMergeSort(), yU7XX+cB7  
new HeapSort() 7oUo[  
}; aYpc\jJ  
C9k"QPE  
public static String toString(int algorithm){ \7xc*v [  
return name[algorithm-1]; yEJ3O^(F  
} (~F}O  
J &=5h.G$  
public static void sort(int[] data, int algorithm) { D?* du#6  
impl[algorithm-1].sort(data); &pz`gna  
} ^:f)XZ  
`2V{]F  
public static interface Sort { 8<Yv:8%B6  
public void sort(int[] data); > 9z-/e  
} vKdS1Dn1  
g?}h*~<b  
public static void swap(int[] data, int i, int j) { MOB'rPIUI  
int temp = data; }y+a )2  
data = data[j]; .S=|ZP+  
data[j] = temp; !rqs!-cCQ  
} M 0G`P1o  
} wxvVtV{u>|  
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
批量上传需要先选择文件,再选择上传
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八