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
  • 8965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。 :+v4,=fHy  
插入排序: vxk~( 3]<)  
\Z^Tk   
package org.rut.util.algorithm.support; @0D  
{q/D,Rh8  
import org.rut.util.algorithm.SortUtil; +<^c2diX  
/** 6Zmzo,{  
* @author treeroot Ih%LKFT  
* @since 2006-2-2 4v#A#5+O E  
* @version 1.0 }_h2:^n  
*/ T5+ (Fz  
public class InsertSort implements SortUtil.Sort{ y:VY8a 4  
,L;%-}#$  
/* (non-Javadoc) [g@ .dr3t  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qFwAzW;"  
*/ K{`3,U2Wx  
public void sort(int[] data) { nq*D91Q  
int temp; a9p6[qOcd  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 6G;t:[H G  
} 4=ZN4=(_[  
} c#T0n !}  
} 3 Bn9Ce=  
T-.Bof(?w  
} nT%<!/}!  
f=Kt[|%'e  
冒泡排序: ^03M~ SNCj  
)WbE -m  
package org.rut.util.algorithm.support; F=V_ACU  
#QKgY7  
import org.rut.util.algorithm.SortUtil; l/6(V:  
zF_aJ+i:~  
/** &` weW  
* @author treeroot M6*8}\  
* @since 2006-2-2 >5bd !b,  
* @version 1.0 skBzwVW I  
*/ b-)3MR:4  
public class BubbleSort implements SortUtil.Sort{ j?s+#t  
#yR@.&P  
/* (non-Javadoc) 0 rilg  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !K/zFYl  
*/ G/?j$T  
public void sort(int[] data) { h2mU  
int temp; [p 8fg!|  
for(int i=0;i for(int j=data.length-1;j>i;j--){ W=?s-*F[~  
if(data[j] SortUtil.swap(data,j,j-1); zHt}`>y&  
} zXT[}J VV  
} Jk=d5B  
} t zSg`7H!  
} \t+q1S1  
=f-.aq(G/  
} o3xfif  
tCbn B  
选择排序: rR 3(yy0L  
w\Bx=a>vc  
package org.rut.util.algorithm.support; 6)Dp2  
e(;nhU3a*,  
import org.rut.util.algorithm.SortUtil; O{44GB3  
h2fTG  
/** P1}Fn:Xe%7  
* @author treeroot pk:2>sx/  
* @since 2006-2-2 S1a}9Z|  
* @version 1.0 ,L,?xvWG  
*/ a>/jW-?  
public class SelectionSort implements SortUtil.Sort { Q.`O;D}x  
sXm,y$ \m  
/* eWwI@ASaA  
* (non-Javadoc) Tq=OYJq5U  
* <-m?l6  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @&E{ L  
*/ Y]!{ n W  
public void sort(int[] data) { K/+w6d  
int temp; =_Y#uE$  
for (int i = 0; i < data.length; i++) { }Qo:;&"3  
int lowIndex = i; ~}F$1;t0  
for (int j = data.length - 1; j > i; j--) { [MVG\6Up(  
if (data[j] < data[lowIndex]) { Uq}-<q  
lowIndex = j; SUQk0 (M  
} STH?X] /  
} #{u>  
SortUtil.swap(data,i,lowIndex); d)X6x-(  
} FtL{ f=  
} !O~5<tA[#1  
-Y"'=zkO  
} Sxw%6Va]p  
Q-LDFnOFwp  
Shell排序: 235wl  
09 >lx$  
package org.rut.util.algorithm.support; qf2;yRc&  
4 9zOhG |  
import org.rut.util.algorithm.SortUtil; gAWrn^2L5  
h"~GaI  
/** < BNCo5*  
* @author treeroot <M4Qc12jP  
* @since 2006-2-2 |:?JSi0  
* @version 1.0 L?c7M}vV  
*/ jS,zdJs=  
public class ShellSort implements SortUtil.Sort{ VD*xhuy$k  
/6%<97/d  
/* (non-Javadoc) ]8i2'x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N<54_(|X  
*/ >v DD.  
public void sort(int[] data) { u*NU MT2  
for(int i=data.length/2;i>2;i/=2){ 1li1&  
for(int j=0;j insertSort(data,j,i); -bHfo%"^TT  
} E"P5rT  
} D|1pBn.b]'  
insertSort(data,0,1); dU~DlaEy(  
} .RNr^*AQ  
6jIW)C  
/** Gv};mkX[N  
* @param data }m~2[5q%/  
* @param j 'e(`2  
* @param i +I?T|Iin  
*/ I=,u7w`m  
private void insertSort(int[] data, int start, int inc) { \y%:[g}Fvw  
int temp; f V|Zh  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ]c8O"4n n  
} +r+H`cT@  
} [We(0wF[`  
} :X`Bc"  
hkO)q|1  
} B(GcPDj(K  
Y(D@B|"'m  
快速排序: ]g/% w3G  
7b2N'^z}  
package org.rut.util.algorithm.support; 9 xvE?8;M#  
i8`&XGEd  
import org.rut.util.algorithm.SortUtil; ~?pF'3q  
6' M"-9?G  
/** E6-alBi%  
* @author treeroot Z' 0Gd@/  
* @since 2006-2-2 G B+U>nf  
* @version 1.0 L7jMpz&  
*/ "-N)TIzLX  
public class QuickSort implements SortUtil.Sort{ ~67L  
0;-S){  
/* (non-Javadoc) iz`u@QKc%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >mT< AQ  
*/ \jdpL1  
public void sort(int[] data) { Aa5IccR  
quickSort(data,0,data.length-1); P]Z}% 8^O  
} 6 m5\f  
private void quickSort(int[] data,int i,int j){ _|MY/SN4A  
int pivotIndex=(i+j)/2; rs@,<DV)u  
file://swap 4QnJ;&~  
SortUtil.swap(data,pivotIndex,j); `@{qnCNQ  
1rV?^5  
int k=partition(data,i-1,j,data[j]); 1anV!&a<K(  
SortUtil.swap(data,k,j); 63QSYn,t  
if((k-i)>1) quickSort(data,i,k-1); _4z>I/R>Z  
if((j-k)>1) quickSort(data,k+1,j); V%pdXM5  
'}c0:,5  
} A+j~oR  
/** ;o\0:fzr  
* @param data bwo"s[w  
* @param i Mi\f?  
* @param j kImGSIJ  
* @return J#CF SG  
*/ `xkJ.,#Io  
private int partition(int[] data, int l, int r,int pivot) { -t % .I=|  
do{ M`umfw T  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); o([+Pp  
SortUtil.swap(data,l,r); &l%#OI}OE  
} il-v>GJU7{  
while(l SortUtil.swap(data,l,r); aO'$}rDf$  
return l; 7,|-%!p[  
} yPm)r2Ck  
cGC&O%`i,\  
} >k^=+  
P/t$xqAL  
改进后的快速排序: 8(%iYs$  
p`{9kH1me  
package org.rut.util.algorithm.support; G:' -|h  
lXm]1 *<  
import org.rut.util.algorithm.SortUtil; #(CI/7 -  
z]\0]i  
/** g{l;v  
* @author treeroot f&^K>Jt1@#  
* @since 2006-2-2 ? Z8_(e0U  
* @version 1.0 RXgi>Hz  
*/ g9I2SdaJ  
public class ImprovedQuickSort implements SortUtil.Sort { L4S Fu.J'  
p=9G)VO  
private static int MAX_STACK_SIZE=4096; ` M"Zq  
private static int THRESHOLD=10; ? {cF'RB.  
/* (non-Javadoc) 5nqj  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Ik=KEOz  
*/ ~oT0h[<  
public void sort(int[] data) { 4jis\W}%L3  
int[] stack=new int[MAX_STACK_SIZE]; :?jOts>uP  
3,tKqR7g  
int top=-1; 0?SdAF[:z  
int pivot; Fg5c;sls  
int pivotIndex,l,r; >F,~QHcz  
D4n ~ 2]  
stack[++top]=0; }RDhI1x[mk  
stack[++top]=data.length-1; 3j<] W  
Y4! v1  
while(top>0){ t 7;V`[  
int j=stack[top--]; $}W=O:L+D  
int i=stack[top--]; vYmRW-1Zxq  
wC<!,tB(8  
pivotIndex=(i+j)/2; A#2 Fd7&  
pivot=data[pivotIndex]; K-k;`s#  
gGe `w  
SortUtil.swap(data,pivotIndex,j); ![U|2x   
hXbb+j  
file://partition 98Pt&C?-B  
l=i-1; 2HkP$;lED  
r=j; #<4h Y7/  
do{ gHvxmIG  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); s+C&\$E  
SortUtil.swap(data,l,r); Bz9!a k~4  
} hUB _[#8#  
while(l SortUtil.swap(data,l,r); Z!~~6Sq  
SortUtil.swap(data,l,j); 0j7\.aaK  
y&-j NOKLM  
if((l-i)>THRESHOLD){ q*?LXKi  
stack[++top]=i; @aY 8VL7C0  
stack[++top]=l-1; ~WehG<p v[  
} hqD]^P>l1  
if((j-l)>THRESHOLD){ vM1f-I-  
stack[++top]=l+1; zg0)9 br  
stack[++top]=j; `kVy1WiY  
} k[gO>UGB;  
Z-*L[  
} 6i(nyA 2!  
file://new InsertSort().sort(data); t]2~aK<]  
insertSort(data); k^S=i_ U  
} +/-#yfn!TR  
/** +i4S^B/8i  
* @param data kDS4 t?Ig  
*/ |94"bDL3~  
private void insertSort(int[] data) { iaLsIy#h  
int temp; t(/e~w  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); SwV0q  
} GTeFDm; T^  
} !WR(H&uBr\  
} O0i_h<T  
@vCPX=c  
} QDF1$,s4i  
OgY4J|<  
归并排序: ^j0Mu.+_  
:0Rd )*k,v  
package org.rut.util.algorithm.support; 8G6PcTqv"  
ZXY5Xvt:v  
import org.rut.util.algorithm.SortUtil; cWA9n}Z  
w9SPkPkYE  
/** I_6?Q^_uZ  
* @author treeroot |ITp$  _S  
* @since 2006-2-2 \|F4@  
* @version 1.0 68[3 /  
*/ SsIy;l  
public class MergeSort implements SortUtil.Sort{ rh5R kiF~  
9gZMfP  
/* (non-Javadoc) N/p9Ws  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *!$4   
*/ rr>QG<i;G  
public void sort(int[] data) { AE={P*g  
int[] temp=new int[data.length]; c*-8h{}  
mergeSort(data,temp,0,data.length-1); -icOg6%  
} Hzcy '  
5bYU(]  
private void mergeSort(int[] data,int[] temp,int l,int r){ GbFLu`Iu  
int mid=(l+r)/2; z\Rs?v"  
if(l==r) return ; AjKP -[  
mergeSort(data,temp,l,mid); Kfa7}f_  
mergeSort(data,temp,mid+1,r); ig4wwd@|  
for(int i=l;i<=r;i++){ I= G%r/3  
temp=data; W=c7>s0>  
} w,bILv)  
int i1=l; {>H#/I8si  
int i2=mid+1; ;5:g%Dt  
for(int cur=l;cur<=r;cur++){ >@KQ )p' `  
if(i1==mid+1) ([R}s/)$  
data[cur]=temp[i2++]; q#:,6HDd  
else if(i2>r) x|d Xa0=N_  
data[cur]=temp[i1++]; G~1#kg  
else if(temp[i1] data[cur]=temp[i1++]; (~:k70V5  
else +c.A|!-  
data[cur]=temp[i2++]; "nPmQ  
} 5cO}Jp%PA  
} #~3x^ 4Y  
J~eY,n.6]  
} IT! a)d  
8Y*SZTzV  
改进后的归并排序: (Z"QHfO'  
;ZHKTOoK  
package org.rut.util.algorithm.support; h#'(i<5v  
]:i :QiYD  
import org.rut.util.algorithm.SortUtil; E1IRb':  
X&o!xV -+  
/** mr6/d1af_  
* @author treeroot 3G9"La,b  
* @since 2006-2-2 et(/`  
* @version 1.0 , mEFp_a+  
*/ ^"7tfo8  
public class ImprovedMergeSort implements SortUtil.Sort { %lNv?sWb  
`2c>M\c4U  
private static final int THRESHOLD = 10; sP$bp Z}  
E{kh)-  
/* "~Twx]Z  
* (non-Javadoc) <MZ$baK  
* Rn~FCj,-  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #gq4%;  
*/ |Ak>kQJ(1z  
public void sort(int[] data) { g <^Y^~+E  
int[] temp=new int[data.length]; yn<H^c  
mergeSort(data,temp,0,data.length-1); CnruaN@  
} }$!bD  
D5fJuT-bp  
private void mergeSort(int[] data, int[] temp, int l, int r) { #q`[(`Bx  
int i, j, k; P7QOlTQI  
int mid = (l + r) / 2; (-*NRY3*  
if (l == r) )hm U/E@  
return; `bu3S }m7  
if ((mid - l) >= THRESHOLD) <GPL8D  
mergeSort(data, temp, l, mid); WRU/^g3O@'  
else ,/6V^K  
insertSort(data, l, mid - l + 1); BM=`zGh"  
if ((r - mid) > THRESHOLD) j)ZvlRi,  
mergeSort(data, temp, mid + 1, r); N ?Jr8  
else v{`Z  
insertSort(data, mid + 1, r - mid); (UDF^  
& i"33.#]  
for (i = l; i <= mid; i++) { @Tb T  
temp = data; },'hhj]O  
} TEz)d=  
for (j = 1; j <= r - mid; j++) { {6Lkh  
temp[r - j + 1] = data[j + mid]; ?xh_qy;  
} _d6mf4M]5  
int a = temp[l]; B%gk[!d}8  
int b = temp[r]; XRXKO>4q  
for (i = l, j = r, k = l; k <= r; k++) {  {Uxa h  
if (a < b) { ,OWdp<z  
data[k] = temp[i++]; /*p4(D_A  
a = temp; !iUdej^tx  
} else { &&$/>[0=.  
data[k] = temp[j--]; !e@G[%k  
b = temp[j]; ~ z4T   
} 1Lz`.%k`:  
} uA=6 HpDB  
} #@H{Ypn`  
:p@H  
/** IIeEe7%#  
* @param data WI9'$hB\  
* @param l >0)E\_ u  
* @param i Ug^C}".&  
*/ K+2bN KZ0  
private void insertSort(int[] data, int start, int len) { &:=   
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); *cCr0\Z`  
} X@Eq5s  
} hKtOh  
} 8=gr F  
} ^|xj.  
W093rNF~  
堆排序: ASY uZ  
z   
package org.rut.util.algorithm.support; $>v^%E;Y4  
A}C&WT~  
import org.rut.util.algorithm.SortUtil; =bs4*[zq  
Ek _k_!  
/** 8F($RnP3  
* @author treeroot 0uzis09  
* @since 2006-2-2 U#G uB&V  
* @version 1.0 a8M.EFa:  
*/  w J!  
public class HeapSort implements SortUtil.Sort{ `}k!SqG  
QI~s~j  
/* (non-Javadoc) ( f8g}2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) JiZ9ly( G  
*/ @A!Ef=R  
public void sort(int[] data) { i051qpj  
MaxHeap h=new MaxHeap(); Xn.zN>mB  
h.init(data); 8>j+xbw  
for(int i=0;i h.remove(); "A__z|sQ  
System.arraycopy(h.queue,1,data,0,data.length); dDW],d}B;  
} }@@1N3nnxV  
mDip P  
private static class MaxHeap{ gv `jeN  
d|on y  
void init(int[] data){ n$y1kD  
this.queue=new int[data.length+1]; '\1%%F7  
for(int i=0;i queue[++size]=data; ,!kyrk6  
fixUp(size); 51`w.ri  
} +x G](?  
} @U;-5KYYi  
j='Ne5X1  
private int size=0; r-]R4#z>  
5 W(iU  
private int[] queue; PZLWyp  
0J$wX yh  
public int get() { zQ]IlMt  
return queue[1]; )~d2`1zGS  
} TuIeaH%x  
a6WE,4T9  
public void remove() { "4g1I<  
SortUtil.swap(queue,1,size--); rorzxp{  
fixDown(1); v8*ZwF  
} +hjc~|RK  
file://fixdown HxZ4t  
private void fixDown(int k) { NWCnt,FlY  
int j; "T}J|28Z  
while ((j = k << 1) <= size) { 1}[\@n+b  
if (j < size %26amp;%26amp; queue[j] j++; DX$`\PA  
if (queue[k]>queue[j]) file://不用交换 MLBZmM '  
break; q6j]j~JxB  
SortUtil.swap(queue,j,k); 7MGc+M(p  
k = j; `9K'I-hv<8  
} Om}&`AP};  
} s ]QzNc  
private void fixUp(int k) { 9\Xl 3j!  
while (k > 1) { !\awT  
int j = k >> 1; G>:l(PW:  
if (queue[j]>queue[k]) c |C12b[  
break; }=f}@JlFB  
SortUtil.swap(queue,j,k); Q&QR{?PMD  
k = j; E\V>3rse  
} tD4IwX  
} *D<sk7  
{'!D2y.7g  
} +IS$Un  
nosEo? {  
} dk(-yv'  
:A[bqRqe  
SortUtil: DdSUB  
'rR\H2b   
package org.rut.util.algorithm; V9<[v?.\  
S0 yPg9v  
import org.rut.util.algorithm.support.BubbleSort; n Isi  
import org.rut.util.algorithm.support.HeapSort; DV%tby  
import org.rut.util.algorithm.support.ImprovedMergeSort; x_@ev-  
import org.rut.util.algorithm.support.ImprovedQuickSort; } KMdfA  
import org.rut.util.algorithm.support.InsertSort; qQ1m5_OD`z  
import org.rut.util.algorithm.support.MergeSort; [ B (lJz  
import org.rut.util.algorithm.support.QuickSort; omRd'\ RO  
import org.rut.util.algorithm.support.SelectionSort; n[iil$VKh  
import org.rut.util.algorithm.support.ShellSort; ^mz_T+UOe  
R K'( {1  
/** vuAAaKz  
* @author treeroot 3Q;^X(Ml*  
* @since 2006-2-2 tICxAp:  
* @version 1.0 b _u&%  
*/ Y]Fq)  -  
public class SortUtil { 7=<PVJ*/  
public final static int INSERT = 1; a)TNVm^  
public final static int BUBBLE = 2; /60[T@Mz  
public final static int SELECTION = 3; @DUdgPA  
public final static int SHELL = 4; DC$ S. {n  
public final static int QUICK = 5; 9 /zz@  
public final static int IMPROVED_QUICK = 6; 92VAQU6  
public final static int MERGE = 7; .K7A!;  
public final static int IMPROVED_MERGE = 8; 96PVn  
public final static int HEAP = 9; n >eIQaV  
NMj `wQ`M+  
public static void sort(int[] data) { JPpYT~4  
sort(data, IMPROVED_QUICK); FVD}9ia  
} 2fLd/x~  
private static String[] name={ Q3/q%#q>  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" nRo`O  
}; 21WqLgT3 4  
xH f9N?  
private static Sort[] impl=new Sort[]{ Q72wg~%w  
new InsertSort(), KC]Jbm{y  
new BubbleSort(), %-*vlNC)  
new SelectionSort(), 0 /kbxpih  
new ShellSort(), M84LbgGM%  
new QuickSort(), + zrwz\  
new ImprovedQuickSort(), J`8>QMK^5  
new MergeSort(),  HOD2/  
new ImprovedMergeSort(), y k5P/H)  
new HeapSort() hKT:@l*  
}; (Q4_3<G+  
mvL'l)  
public static String toString(int algorithm){ GS$k  
return name[algorithm-1]; D4vmBVT  
} ^GAdl}  
ljis3{kn""  
public static void sort(int[] data, int algorithm) { _F*w ,b$8  
impl[algorithm-1].sort(data); Y5NbY02E  
} %%Kg'{-:  
|{jAMC0#  
public static interface Sort { O}`01A!u;  
public void sort(int[] data); IL=v[)en4  
} k1U~S`>$  
(g)@wNBW  
public static void swap(int[] data, int i, int j) { qB39\j  
int temp = data; g@y" B6X  
data = data[j]; 1h#k&r#*3  
data[j] = temp; ?.A|Fy^  
} 0B4(t6o  
} 6C0_. =7#  
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
如果您在写长篇帖子又不马上发表,建议存为草稿
认证码:
验证问题:
10+5=?,请输入中文答案:十五