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
  • 5428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。 L2/<+ Zw  
插入排序: v^lm8/}NO  
&:cTo(C'  
package org.rut.util.algorithm.support; d)17r\*>I  
C Sk  
import org.rut.util.algorithm.SortUtil; >{LJ#Dc6  
/** m|?" k38  
* @author treeroot YRM6\S)py  
* @since 2006-2-2 g8iB;%6  
* @version 1.0 /kviO@jm4(  
*/ aD2CDu  
public class InsertSort implements SortUtil.Sort{ 8 *(W |J  
R2H\;N  
/* (non-Javadoc) ~i_ R%z:y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) B"E(Y M  
*/  JY050FL  
public void sort(int[] data) { ]K0,nj*\c  
int temp; -)->Jx:{  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); HNHhMi`w  
} t&Y^W <  
} L+0N@`nRF  
} l<)JAT;P  
zk^7gx3x  
} FDGKMGZ  
+IOKE\,Y  
冒泡排序: ]zM90$6  
eQ)ioY  
package org.rut.util.algorithm.support; [9W&1zY  
3bI|X!j  
import org.rut.util.algorithm.SortUtil;  k9VQ6A  
3 z/O`z  
/** ?'$. -z:  
* @author treeroot ZsK'</7  
* @since 2006-2-2 +[l{C+p  
* @version 1.0 I}Gl*@K&O  
*/ Om?:X!l"  
public class BubbleSort implements SortUtil.Sort{ 0,D9\ Ebd  
@}rfY9o'  
/* (non-Javadoc) 1 FIiX  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {*]= qSz  
*/ <812V8<!  
public void sort(int[] data) { T?}=k{C]  
int temp; =L; n8~{@y  
for(int i=0;i for(int j=data.length-1;j>i;j--){  q&Ua(I  
if(data[j] SortUtil.swap(data,j,j-1); J`D<  
} V:" \(Y  
} LM`tNZ1Fc!  
} cF<DUr)Ve  
} %!hA\S  
7QL) }b.H  
} k3|9U'r!c  
b!tZbX#  
选择排序: fO}1(%}d  
W,oV$ s^  
package org.rut.util.algorithm.support; wCEfR!i  
+VI0oo {Z  
import org.rut.util.algorithm.SortUtil; wYxFjXm  
{~p %\  
/** ljR?* P  
* @author treeroot bA9dbe  
* @since 2006-2-2 w!Lb;4x ?  
* @version 1.0 8w@jUGsc  
*/ l=OC?d*m  
public class SelectionSort implements SortUtil.Sort { >a] s  
H-y-7PW*~  
/* oO9iB:w  
* (non-Javadoc) Q]koj!mMl  
* U?m?8vhR6(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) K]azUK7  
*/ }j<_JI  
public void sort(int[] data) { sAAIyPJts  
int temp; ewlc ^`  
for (int i = 0; i < data.length; i++) { /SM#hwFxJ&  
int lowIndex = i; &7y1KwfXn  
for (int j = data.length - 1; j > i; j--) { WRyv >Y  
if (data[j] < data[lowIndex]) { 7&U+f:-w  
lowIndex = j; E ^>7jf09,  
} Wv'B[;[)  
} Vblf6qaBs  
SortUtil.swap(data,i,lowIndex); #S74C*'8  
} Cr\/<zy1-e  
} y]z#??  
B!C32~[  
} "%iR-s_>  
nLLHggNAV  
Shell排序: Mh B=+S[@  
?=o]Wx0(9  
package org.rut.util.algorithm.support; ;."{0gq  
,3TD $2};.  
import org.rut.util.algorithm.SortUtil; $fpDABf  
'`VO@a  
/** "+"dALX{3K  
* @author treeroot H ;}ue  
* @since 2006-2-2 C2%3+  
* @version 1.0 *m Tc4&*  
*/ R}mWHB_h"  
public class ShellSort implements SortUtil.Sort{ .TU15AAc  
@?NLME  
/* (non-Javadoc) NNV.x7  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #z5?Y2t7~^  
*/ $f-pLF+x  
public void sort(int[] data) { e/~<\  
for(int i=data.length/2;i>2;i/=2){ wA+4:CF @  
for(int j=0;j insertSort(data,j,i); VFp)`+8  
}  ^*>no=A  
} [9Hm][|Ph  
insertSort(data,0,1); fH{$LjH(  
} xo3)ds X  
VH*(>^Of F  
/** 5 `mVe0uI  
* @param data ag4^y&  
* @param j 6m<9^NT  
* @param i zT40,rk  
*/ q:eAL'OkM  
private void insertSort(int[] data, int start, int inc) { JugQ +0  
int temp; F#9KMu<<cI  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); l@9:V hU(  
} s0'U[]  
} wY)GX  
} jh!IOtf  
-2XIF}.Hu  
} ,$*klod  
o{,(`o.1O  
快速排序: 438> )=  
_e^V\O>  
package org.rut.util.algorithm.support; O$ oN1  
M#IR=|P]  
import org.rut.util.algorithm.SortUtil; ?AH<y/i<Y  
e q.aN3KB"  
/** g4932_tC  
* @author treeroot N^>g= Ub  
* @since 2006-2-2 JIkmtZv  
* @version 1.0 :zZM&r>  
*/ wn.0U  
public class QuickSort implements SortUtil.Sort{ F= lj$?4{  
 5Ww\h  
/* (non-Javadoc) 4}b:..Ku  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +DDvM;31w  
*/ DGUU1 vA  
public void sort(int[] data) { hkm3\wg  
quickSort(data,0,data.length-1); U4/$4.'NQ  
} ` OK }q  
private void quickSort(int[] data,int i,int j){ 7E]l=Z`x  
int pivotIndex=(i+j)/2; p#I1l2nE  
file://swap X> KsbOZ  
SortUtil.swap(data,pivotIndex,j); 3@A k6Uh  
s;)tLJ!  
int k=partition(data,i-1,j,data[j]); ;<Q_4 V  
SortUtil.swap(data,k,j); Sa(r l^qZ2  
if((k-i)>1) quickSort(data,i,k-1); 7tnzgtal  
if((j-k)>1) quickSort(data,k+1,j); `fHiY.-  
BF#e=p  
} |8rJqtf +&  
/** Yf9L~K  
* @param data W12K93tO  
* @param i rGO 3  
* @param j d":{a6D*d  
* @return au v\fR :  
*/ an$h~}/6:  
private int partition(int[] data, int l, int r,int pivot) { m/h0J03'T  
do{ *GMRu,u2  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); mI18A#[ 3  
SortUtil.swap(data,l,r); 8gdOQ=a  
} G 3x1w/L  
while(l SortUtil.swap(data,l,r); k#M W>  
return l; :@L5=2Z+  
} [O'p&j@  
]].21  
} O2B$c\pw  
r3)t5P*_  
改进后的快速排序: [J#(k`@  
p*,mwKN:  
package org.rut.util.algorithm.support; W>49,A,q  
XsCbA8Qv  
import org.rut.util.algorithm.SortUtil; M?`06jQD.  
n40Z  
/** gA*zFhGVS7  
* @author treeroot kDQXP p  
* @since 2006-2-2 4j{ }{  
* @version 1.0 AEJm/8,T  
*/ U9s y]7  
public class ImprovedQuickSort implements SortUtil.Sort { )}8%Gs4C  
}2{#=Elh  
private static int MAX_STACK_SIZE=4096; 19DW~kvYk  
private static int THRESHOLD=10; .j.=|5nVo4  
/* (non-Javadoc) c eX*|B@=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HB^azHr  
*/ `XP Tf#9j  
public void sort(int[] data) { ];YOP%2   
int[] stack=new int[MAX_STACK_SIZE]; %Z|*!A+wN5  
V _,*  
int top=-1; cm<3'#~Q?  
int pivot; b"V-!.02  
int pivotIndex,l,r; 9p<l}h7g  
??;[`_h{bz  
stack[++top]=0; ySZ)yT  
stack[++top]=data.length-1; R(fR1  
I1jF`xQ&0  
while(top>0){ Q[^d{e*l  
int j=stack[top--]; bx> D  
int i=stack[top--]; vC1 `m  
d+;~x*  
pivotIndex=(i+j)/2; `x3c},'@k  
pivot=data[pivotIndex]; R!ij CF\  
|V5H(2/nk  
SortUtil.swap(data,pivotIndex,j); aDESO5  
ho. a93  
file://partition 4{=Em5`HbO  
l=i-1; {s]eXc]K}  
r=j; gB#t"s)  
do{ <T>f@Dn,  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); WqO* vK!t  
SortUtil.swap(data,l,r); c`cPGEv  
} Yy]He nw;  
while(l SortUtil.swap(data,l,r); c"r( l~fc  
SortUtil.swap(data,l,j); (H7q[UG|  
Vow+,,oh  
if((l-i)>THRESHOLD){ .*{LPfD|  
stack[++top]=i; H{If\B%1t  
stack[++top]=l-1; 3ly|y{M",  
} f QdQ[  
if((j-l)>THRESHOLD){ .'M]cN~  
stack[++top]=l+1; a>6p])Wh  
stack[++top]=j; !xSGZ D=AD  
} n&^Rs )%v  
MG|NH0k  
} Bb6_['y  
file://new InsertSort().sort(data); 2_p/1Rs  
insertSort(data); "#%T*c{Tf0  
} ZZUCwczI  
/** uWSG+  
* @param data (Y86q\DQ?|  
*/ fsu'W]f  
private void insertSort(int[] data) { ]v#Q\Q8>  
int temp; mb/Y  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); B(hNBq7  
} |dO1w.x/  
} G9jtL$}E<  
} 8oK30?  
,fbO}  
} hk(^?Fp  
:Fh* 4 &Z  
归并排序: LF8B5<[O  
ugz1R+f_4{  
package org.rut.util.algorithm.support; TSeAC[%pL  
e>/PW&Z8Z  
import org.rut.util.algorithm.SortUtil; b.F2m(e2  
aE+E'iL  
/** f-PDgs   
* @author treeroot 6xwC1V?:0t  
* @since 2006-2-2 (Xx @_  
* @version 1.0 zT@vji%Y  
*/ mYZH]oo  
public class MergeSort implements SortUtil.Sort{ D*b> l_  
oPi)#|jcb  
/* (non-Javadoc) (q utgnW  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ),86Y:^4  
*/  )57OZ  
public void sort(int[] data) { 0W@C!mD~  
int[] temp=new int[data.length]; `KZ}smMA  
mergeSort(data,temp,0,data.length-1); !HFwQGP.Y  
} 1cPi>?R:  
i^yQ; 2 -  
private void mergeSort(int[] data,int[] temp,int l,int r){ w] VvH"?  
int mid=(l+r)/2; T ^uBMDYe  
if(l==r) return ; }wn GOr  
mergeSort(data,temp,l,mid); |oX l+&u  
mergeSort(data,temp,mid+1,r); 9,4a?.*4~  
for(int i=l;i<=r;i++){ 4JucNGv  
temp=data; /%~`B[4F  
} |b|p0Z%7{  
int i1=l; U7O2.y+  
int i2=mid+1; s f%=q$z  
for(int cur=l;cur<=r;cur++){ 'Z';$N ]  
if(i1==mid+1) Mb-C DPT  
data[cur]=temp[i2++]; +K&ze:-Z  
else if(i2>r) |(Sqd;#v  
data[cur]=temp[i1++]; Mv_4*xVc  
else if(temp[i1] data[cur]=temp[i1++]; 0&<{o!>k  
else :iq1-Pw  
data[cur]=temp[i2++]; a XwFQ,  
} |>m@]s7Z  
} V /|@   
]F,5Oh :OY  
} CpA=DnZ  
nfd^'}$]  
改进后的归并排序: Hc}(+wQN%  
778a)ZOzb  
package org.rut.util.algorithm.support; }V 09tK/M  
X)\t=><<  
import org.rut.util.algorithm.SortUtil; *5wb8 [  
S#jE1EN  
/** rN OwB2e  
* @author treeroot =5+:<e,&  
* @since 2006-2-2 M}HGFN  
* @version 1.0 8I JFQDGA9  
*/ N'IzHyo.  
public class ImprovedMergeSort implements SortUtil.Sort { T<!TmG  
u)%J5TR.Y  
private static final int THRESHOLD = 10; By%aTuV$  
V_h, UYN  
/* yhZ2-*pTg  
* (non-Javadoc) hD sFsG  
* 6*CvRb&  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) s3oK[:/  
*/ !s5 _JO  
public void sort(int[] data) { znD0&CS9q  
int[] temp=new int[data.length]; lBl`R|Gt  
mergeSort(data,temp,0,data.length-1); .7{,u1N'  
} k: D<Q  
0&zp9(G5  
private void mergeSort(int[] data, int[] temp, int l, int r) { ZjbMk 3Y  
int i, j, k; h%Bp%Y9  
int mid = (l + r) / 2; Y'58.8hl  
if (l == r) C&r&&Pw  
return; p9fx~[_5/  
if ((mid - l) >= THRESHOLD) nD|Bo 9  
mergeSort(data, temp, l, mid); ?z p$Wz;k  
else  zoA]7pG-  
insertSort(data, l, mid - l + 1); !Vy/-N  
if ((r - mid) > THRESHOLD) 7N 7W0Ky  
mergeSort(data, temp, mid + 1, r); L -<!,CASW  
else ZxY%x/K  
insertSort(data, mid + 1, r - mid); Ee^2stc-  
XXvM*"3D5  
for (i = l; i <= mid; i++) { 1ih|b8)Dn  
temp = data; 7iT#dpF/A  
} 0rooL<~fa  
for (j = 1; j <= r - mid; j++) { _>0 I9.[5  
temp[r - j + 1] = data[j + mid]; KftZ ^mk+p  
} uK1DC i  
int a = temp[l]; .*i.Z   
int b = temp[r]; l.El3+  
for (i = l, j = r, k = l; k <= r; k++) { Sw%^&*J  
if (a < b) { /GqW1tcO  
data[k] = temp[i++]; +uLl3(ml  
a = temp; p{NVJ^! +  
} else { VM88#^  
data[k] = temp[j--]; -6@#Nq_iWU  
b = temp[j]; \'x. DVp  
} ;X*I,g.+H  
} :.J Ad$>P  
} =HH}E/9z  
2XNO*zbve  
/** h:[%' htz  
* @param data /5pVzv+rm  
* @param l w a2?%y_G  
* @param i 7\HjQ7__  
*/ :;HJ3V;  
private void insertSort(int[] data, int start, int len) { t,Ss3  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); `B-jwVrN(  
} oP!oU2eqK  
} 16Cd0[h?  
} N6EG!*  
} }}G`yfs}r  
c>mTd{Abi  
堆排序: v4OroG=^  
rv ouE:  
package org.rut.util.algorithm.support; E9<oA.  
epXvk &  
import org.rut.util.algorithm.SortUtil; 5L!EqB>m;  
%=e^MN1  
/**  h&}z@  
* @author treeroot 7wKT:~~oS3  
* @since 2006-2-2 VN]70LFz*i  
* @version 1.0 > &tmdE  
*/ (.^KuXd  
public class HeapSort implements SortUtil.Sort{ SI\ O>a 9{  
<5BNcl\ZL  
/* (non-Javadoc) > >%m,F[  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'A2^K5`3  
*/ m?GBvL$  
public void sort(int[] data) { NpI "XQ  
MaxHeap h=new MaxHeap();  OXDEU.  
h.init(data); /3#)  
for(int i=0;i h.remove(); r^zra|]  
System.arraycopy(h.queue,1,data,0,data.length); %1h%#/#[  
} `8M{13fv  
t.X8c/,;g  
private static class MaxHeap{ +@G#Z3;l!  
jJbS{1z  
void init(int[] data){ D6N 32q@  
this.queue=new int[data.length+1]; P.#@1_:gC  
for(int i=0;i queue[++size]=data; djmd @{Djt  
fixUp(size); (_IPz)F  
} Z@(m.&ZRx  
} <!;NJLe`  
r?7tI0  
private int size=0; {?X:?M_  
y8%QS*  
private int[] queue; tK7v&[cI  
wjy<{I  
public int get() { ]Ub"NLYV  
return queue[1]; grVPu! B;  
} -RI&uFqOI  
:yxP3e%rp  
public void remove() { b,hRk1  
SortUtil.swap(queue,1,size--); xlIVLv6dO  
fixDown(1); yo^M>^P\N  
} *jCHv  
file://fixdown &a8%j+j  
private void fixDown(int k) { zt!)7HBo  
int j; t XfXuHa  
while ((j = k << 1) <= size) { JIatRc?g  
if (j < size %26amp;%26amp; queue[j] j++; !(A<  
if (queue[k]>queue[j]) file://不用交换 gk hmQd  
break; FeL!%z  
SortUtil.swap(queue,j,k); ?uh%WN6nU]  
k = j; =[do([A  
} adY ,Nz  
} %_ (Xn  
private void fixUp(int k) { ;.+C  
while (k > 1) { ,Jrm85 oG  
int j = k >> 1; C[R|@9NI  
if (queue[j]>queue[k]) )6b`1o!7  
break; 0g'MF  S  
SortUtil.swap(queue,j,k); 6qR5A+|;  
k = j; I+eKuWB  
} pN=>q <]L  
} bt=z6*C>A  
yRy^'E~  
} Uc<BLu;  
\ORE;pG  
} ^^z_[Ih  
`|p8zV  
SortUtil: j6GR-WQ]t  
F]GX;<`  
package org.rut.util.algorithm; Ve\.7s  
sq_ yu(  
import org.rut.util.algorithm.support.BubbleSort; eNDc220b  
import org.rut.util.algorithm.support.HeapSort; "N3!!3  
import org.rut.util.algorithm.support.ImprovedMergeSort; X?7s  
import org.rut.util.algorithm.support.ImprovedQuickSort; Yij_'0vZ  
import org.rut.util.algorithm.support.InsertSort; 3w&Z:<  
import org.rut.util.algorithm.support.MergeSort; 6GMwB@ b  
import org.rut.util.algorithm.support.QuickSort; s:xt4<  
import org.rut.util.algorithm.support.SelectionSort; ^XT;n  
import org.rut.util.algorithm.support.ShellSort; woUt*G@  
NqC}}N\,  
/** 8}aSSL]  
* @author treeroot >@tJ7m M  
* @since 2006-2-2 "G!,gtA~  
* @version 1.0 7*eIs2aY  
*/ :Qu.CvYF  
public class SortUtil { oM!zeJNA  
public final static int INSERT = 1; Bo4iX,zu  
public final static int BUBBLE = 2; AzMX~cd  
public final static int SELECTION = 3; .A F94OlE/  
public final static int SHELL = 4; 09 v m5|  
public final static int QUICK = 5; )O,+'w?  
public final static int IMPROVED_QUICK = 6; "lA8CA  
public final static int MERGE = 7; Zt \3y  
public final static int IMPROVED_MERGE = 8; Y;=GM:*H  
public final static int HEAP = 9; k $E{'Dv  
kS62]v]  
public static void sort(int[] data) { w""  
sort(data, IMPROVED_QUICK); {!*dk V  
} Ask~  
private static String[] name={ >P}6/L  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" Wb#ON|.2  
}; Yb348kRF  
/Py`a1  
private static Sort[] impl=new Sort[]{ :M$8<03>F  
new InsertSort(), EouI S2e;a  
new BubbleSort(), }F-,PSH Ml  
new SelectionSort(), TOsHb+Uv  
new ShellSort(), ]RuH6d2d|  
new QuickSort(), 8b X?HeYrr  
new ImprovedQuickSort(), P EMuIYm$  
new MergeSort(), T,uJO<  
new ImprovedMergeSort(), V!f' O@p[  
new HeapSort() COL_c<\  
}; 42Cc`a%U  
}LwKi-G?  
public static String toString(int algorithm){ /Z2 g >  
return name[algorithm-1]; snVeOe#'S  
} es1'z.UJ  
-+n? Q;  
public static void sort(int[] data, int algorithm) { 7#sb },J{  
impl[algorithm-1].sort(data); ^ux"<?  
} OSkBBo]~z  
\4|osZ0y  
public static interface Sort { e0g>.P@6  
public void sort(int[] data); 'ALe>\WO  
} r5Xi2!  
nXW]9zC"/  
public static void swap(int[] data, int i, int j) { ^}4ysw  
int temp = data; -^,wQW:o)  
data = data[j]; 2+C 8w%F8  
data[j] = temp; y^:6D(SR  
} W;T (q~XK  
} +ooQ-Gh  
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:
10+5=?,请输入中文答案:十五