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
  • 7008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。 Uvc$&j^k  
插入排序: Xr8fmJtg'  
3J 5,V  
package org.rut.util.algorithm.support; S},Cz  
hG#2}K_  
import org.rut.util.algorithm.SortUtil; >\:GFD{z  
/** xq,ql@7  
* @author treeroot rA?< \*  
* @since 2006-2-2 ]v>[r?X#V  
* @version 1.0 6qTMHRI  
*/ <+ [N*  
public class InsertSort implements SortUtil.Sort{ =$y J66e  
)nj fqg  
/* (non-Javadoc) zvq}7,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) OS<GAA0  
*/ 6m]?*k1HC  
public void sort(int[] data) { z(%tu  
int temp; #7'k'(  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ~&ns?z>x  
} m6K7D([f  
} 2NjgLXP  
} k+"7hf=C|  
w nQy   
} Srmr`[i  
',]Aj!q  
冒泡排序: L'KKU4zj  
DOFW"SpE  
package org.rut.util.algorithm.support; i={4rZOD^  
CC3 i@  
import org.rut.util.algorithm.SortUtil; WW6-oQs_#*  
q&9]4j  
/** /\mYXi \  
* @author treeroot >m!Z$m([J  
* @since 2006-2-2 `\"<%CCe  
* @version 1.0 *}#HBZe(9  
*/ [!3cWJCt  
public class BubbleSort implements SortUtil.Sort{ )jUPMIo  
[ypE[   
/* (non-Javadoc) *$R9'Yo}F  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c1FSQ m81  
*/ \zk>cQ  
public void sort(int[] data) { F{Yr8(UHA  
int temp; 9-_Lc<  
for(int i=0;i for(int j=data.length-1;j>i;j--){ q&?hwX Z7  
if(data[j] SortUtil.swap(data,j,j-1); b~* iL!<  
} $`\qY ^.(  
} :a2[d1  
} G~u$BV'  
} kxEq_FX  
wX6-WQR  
} ~}ifwm'7 a  
>)*d/^  
选择排序: bw/mF5AsW  
qHyOaK Md  
package org.rut.util.algorithm.support; gn.)_  
6+ptL-Zt<  
import org.rut.util.algorithm.SortUtil; c'VCCXe  
$>_`.*I/  
/** 9mXmghoCO  
* @author treeroot vyWx{ @  
* @since 2006-2-2 jz;{,F  
* @version 1.0 _D{FQRU<YD  
*/ t(PA+~sIp  
public class SelectionSort implements SortUtil.Sort { `.pd %\  
nwfu@h0G  
/* SCMvq?9  
* (non-Javadoc) %q;y74  
* ) d'H&c3  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) daSx^/$R  
*/ u^]Gc p  
public void sort(int[] data) { 0i8\Lu6  
int temp; #pW!(tfN^a  
for (int i = 0; i < data.length; i++) { l]t^MEoc8  
int lowIndex = i; l'2vo=IQ  
for (int j = data.length - 1; j > i; j--) { M3!;u%~} s  
if (data[j] < data[lowIndex]) { Z vC?F=tH  
lowIndex = j; ZR)M<*$  
} |cuKC \  
} 0d:t=LKw)  
SortUtil.swap(data,i,lowIndex); =2rdbq6R  
} @Ss W  
} v;?W|kJ.u  
$ Fc}K+  
} pO N#r  
wfu`(4  
Shell排序: =I&BO[d  
g%^/^<ei  
package org.rut.util.algorithm.support; NgsEEPu?  
,SdxIhL  
import org.rut.util.algorithm.SortUtil; [z7]@v6b  
z,dF Dl$  
/** -R];tpddR5  
* @author treeroot G i(  
* @since 2006-2-2 Cl& )#  
* @version 1.0 !P=L0A`  
*/ 'ju_l)(R  
public class ShellSort implements SortUtil.Sort{ H0lW gJmi|  
OU]"uV<(  
/* (non-Javadoc) >bhF{*t#;y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g~9rt_OV  
*/ :~s*yznf  
public void sort(int[] data) { mxJe\[I  
for(int i=data.length/2;i>2;i/=2){ &ns??:\+T  
for(int j=0;j insertSort(data,j,i); 9X#]Lg?b  
} ih75 C"  
} 5__B M5|  
insertSort(data,0,1); ?l @=}WN  
} ?uP5("c  
e iH&<AH  
/** ' < >Q20  
* @param data r~,3  
* @param j 9]G~i`QQ  
* @param i vGJw/ij'X  
*/ vt(}8C+  
private void insertSort(int[] data, int start, int inc) { 3FO-9H  
int temp; ,|zwY~l t5  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 4pcIH5)z  
} #-"C_~-MH  
} p R`nQM-D  
} |?f~T"|>  
T(cpU,Q  
} %7\l+g,  
v-!Spf  
快速排序: <+%y  
1`Bhis9X8  
package org.rut.util.algorithm.support; D^];6\=.i  
D6yE/QeK4  
import org.rut.util.algorithm.SortUtil; :y{@=E=XSC  
!T~uxeZ/;  
/** @l_rB~  
* @author treeroot c5Kc iTD^  
* @since 2006-2-2 w'xPKO$bzR  
* @version 1.0 1guiuR4  
*/ s{Y-Vdx  
public class QuickSort implements SortUtil.Sort{ fv* $=m  
81I9xqvSd~  
/* (non-Javadoc) Z%I 'sWOd  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pOl6x iMx  
*/ *Kq;xM6Ck  
public void sort(int[] data) { 2`FDY3n  
quickSort(data,0,data.length-1); g~=- ,j|  
} Ck/w:i@>?  
private void quickSort(int[] data,int i,int j){ fP( n3Q  
int pivotIndex=(i+j)/2; =gd~rk9  
file://swap i{HzY[  
SortUtil.swap(data,pivotIndex,j); Z)u_2e  
Y31e1   
int k=partition(data,i-1,j,data[j]); >oAXS\Ts  
SortUtil.swap(data,k,j); 1dy"  
if((k-i)>1) quickSort(data,i,k-1); LTb#1JC  
if((j-k)>1) quickSort(data,k+1,j); iWe'|Br  
ue!4By8T  
} N{Pa&/V  
/** 7< ?Aou  
* @param data S[&yO-=p6  
* @param i oHu7<r  
* @param j 2,h]Y=.s  
* @return u+pZ<Bb  
*/ kidv^`.H$w  
private int partition(int[] data, int l, int r,int pivot) { /Hq#!2)  
do{ b0N7[M1Xl  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); h?->A#  
SortUtil.swap(data,l,r); G*zhy!P  
} 2jP(D%n  
while(l SortUtil.swap(data,l,r); IG:CWPU  
return l; qUQP.4Z95  
} '|&?$g(\h  
r|953e  
}  SmAF+d  
2aUE<@RU[  
改进后的快速排序: _znn`_N:v  
i$!K{H1{9  
package org.rut.util.algorithm.support; k/Ao?R=@gI  
Y5mk*Q#q  
import org.rut.util.algorithm.SortUtil; WBD"d<>'  
>IZ$ .-  
/** `n`HwDo;i  
* @author treeroot ,!^;<UR:  
* @since 2006-2-2 -e+im(2D=  
* @version 1.0  ~>3#c#[  
*/ \LM{.g zT  
public class ImprovedQuickSort implements SortUtil.Sort { .;:dG  
J p0j  
private static int MAX_STACK_SIZE=4096; T&E'MB  
private static int THRESHOLD=10; &w^:nVgl  
/* (non-Javadoc) #<-%%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *Oh]I|?  
*/ ;,@Fz  
public void sort(int[] data) { YJZ`Clp?  
int[] stack=new int[MAX_STACK_SIZE]; _J_QB]t  
L^ U.h  
int top=-1; W)odaab7  
int pivot; u&o<>d;)  
int pivotIndex,l,r; bI)%g  
lygv#s-T  
stack[++top]=0; q9$K.=_5  
stack[++top]=data.length-1; (^)(#CxO  
AIM<mU  
while(top>0){ 'W p~8}i@  
int j=stack[top--]; mbIHzzW>  
int i=stack[top--]; (+bt{Ma  
hx}X=7w  
pivotIndex=(i+j)/2; , #(k|Zztc  
pivot=data[pivotIndex]; 9%?a\#C  
,Q+.kAh !G  
SortUtil.swap(data,pivotIndex,j); s`dUie}y<  
l+^4y_  
file://partition Qf@ha  
l=i-1; !<0 `c  
r=j; ,GF(pCZzG  
do{ fvV5G,lD3h  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); sN/8OLc  
SortUtil.swap(data,l,r); CYhSCT!-?  
} R'B-$:u  
while(l SortUtil.swap(data,l,r); BIjkW.uf  
SortUtil.swap(data,l,j); $< .wQ8:Q  
Mg\8m-L^  
if((l-i)>THRESHOLD){ rJCu6  
stack[++top]=i; F<2qwP  
stack[++top]=l-1; >ti)m >f  
} (U|WP%IM'  
if((j-l)>THRESHOLD){ <im<0;i&e  
stack[++top]=l+1; 3'tq`t:SQ  
stack[++top]=j; e,@5`aYHM@  
} xL!@$;J  
7$JE+gL/7  
} {$_Gjv  
file://new InsertSort().sort(data); mFuHZ)iQG  
insertSort(data); i[ n3ILn  
} Y]"lcr}  
/** tAS[T9B  
* @param data VO7&<Y}{x  
*/ "1-z'TV=  
private void insertSort(int[] data) { S2~im?^21  
int temp; _j\ 8u`^n  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); eOUEhpE  
} PED5>90  
} X[1w(dU[  
} s[u*~A  
U %aDkC+M  
} vF'Y; M  
D'"l%p  
归并排序: ~PedR=Y0n  
i$XT Qr0K=  
package org.rut.util.algorithm.support; u 236a\:  
 e3%dNa  
import org.rut.util.algorithm.SortUtil; /wJocx]vQ  
0$. ;EGP  
/** m=D9V-P  
* @author treeroot q.d qr<  
* @since 2006-2-2 OCWyp  
* @version 1.0 }?,Eb~q  
*/ X GDJCN  
public class MergeSort implements SortUtil.Sort{ 1 o\COnt  
/k=k rAz.  
/* (non-Javadoc) +}^^]J$Nh  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'M% uw85  
*/ Wf-Pa9  
public void sort(int[] data) { o65I(`  
int[] temp=new int[data.length]; E{IY7Xz^>  
mergeSort(data,temp,0,data.length-1); _5v]69C#  
} Jr,**,wA  
qE{L42  
private void mergeSort(int[] data,int[] temp,int l,int r){ jFwJ1W;?-  
int mid=(l+r)/2; vk|xYDD  
if(l==r) return ; \S)cVp)h  
mergeSort(data,temp,l,mid); (Cbm*VL  
mergeSort(data,temp,mid+1,r); _/h<4G6A  
for(int i=l;i<=r;i++){ a} :2lL%  
temp=data; D<Z]kR(  
} #8a k=lL  
int i1=l; -@mcu{&  
int i2=mid+1; G,,f' >  
for(int cur=l;cur<=r;cur++){ 3u1\zse  
if(i1==mid+1) \&^U9=uq  
data[cur]=temp[i2++]; ~p\r( B7G  
else if(i2>r) +Al* MusS  
data[cur]=temp[i1++]; y6gaoj  
else if(temp[i1] data[cur]=temp[i1++]; U/>l>J5  
else W%< z|  
data[cur]=temp[i2++]; x{$/|_  
} ffem7eQ  
} [g$IN/o%  
BYb"[qPV  
} J''lOj(@  
d(9C7GLC,  
改进后的归并排序: 7$Pf  
-n6e;p]  
package org.rut.util.algorithm.support; He}"e&K  
h%Uq  
import org.rut.util.algorithm.SortUtil; .}iRe}=  
<l$ vnq  
/** >xIb|Yp)&  
* @author treeroot *:Y9&s^6j  
* @since 2006-2-2 256V xn  
* @version 1.0 8l>YpS*S^  
*/ /O[ Z  
public class ImprovedMergeSort implements SortUtil.Sort { q 7hoI]  
uUh6/=y  
private static final int THRESHOLD = 10; So}pA2[0  
$~'G<YYF4  
/* Ej$oRo{ IG  
* (non-Javadoc) ^AR kjYt  
* @{@)gE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) cs)R8vuB)z  
*/ OZ2faf  
public void sort(int[] data) { 6Q}>=R^h  
int[] temp=new int[data.length]; 921s'"  
mergeSort(data,temp,0,data.length-1); gyOAvx  
} }C5Fvy6uz  
ez[$;>  
private void mergeSort(int[] data, int[] temp, int l, int r) { |5\: E}1  
int i, j, k; *):s**BJ$  
int mid = (l + r) / 2; )C $1))  
if (l == r) MO *7:hI  
return; @g1T??h   
if ((mid - l) >= THRESHOLD) kf_*=ER  
mergeSort(data, temp, l, mid); iy|xF~  
else =+"-8tz8FV  
insertSort(data, l, mid - l + 1); `i6q\-12n  
if ((r - mid) > THRESHOLD) 7E R!>l+  
mergeSort(data, temp, mid + 1, r); j.KV :zJU  
else ^[1Xl7)`  
insertSort(data, mid + 1, r - mid); r9~IR  
z=qxZuFkDs  
for (i = l; i <= mid; i++) { r z5@E  
temp = data; PH=O>a`a_O  
} JgcMk]|'  
for (j = 1; j <= r - mid; j++) { c)SQ@B@q  
temp[r - j + 1] = data[j + mid]; Q,R|VI6Co  
} M&0U@ r-  
int a = temp[l]; [m9=e-KS$Q  
int b = temp[r]; /B5rWJ2AS  
for (i = l, j = r, k = l; k <= r; k++) { +l>X Z  
if (a < b) { Q8NrbMrl  
data[k] = temp[i++]; gX/?  
a = temp; py9`q7F  
} else { >&)|fV&4  
data[k] = temp[j--]; 7lG,.W|  
b = temp[j]; z<8WN[fB  
} 6V-JyTcxGI  
} j +Ro?  
} 3+V.9TL'a  
UZu.B!4  
/** .wkW<F7  
* @param data p}q]GJ  
* @param l vJuL+'[i  
* @param i - 4B&{P  
*/ h]k1vp)Q y  
private void insertSort(int[] data, int start, int len) { ^6 \@$   
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); y1Y  
} v8K4u)  
} NeniQeR   
} }Hb_8P  
} sb</-']a  
x24&mWgU  
堆排序: H@`lM~T[  
ePTN^#|W  
package org.rut.util.algorithm.support; ]u"x=S93  
yH.Z%*=xQa  
import org.rut.util.algorithm.SortUtil; w,zm!  
&H?Vlx Ix  
/** )h/Qxf  
* @author treeroot P(i E"KH;  
* @since 2006-2-2 (+;%zh-  
* @version 1.0 EP8R[Q0_"  
*/ W! GUA<  
public class HeapSort implements SortUtil.Sort{ Fj1'z5$  
R3E|seR  
/* (non-Javadoc) +$B#] ,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $GIup5  
*/ 1K[y)q  
public void sort(int[] data) { -7A2@g  
MaxHeap h=new MaxHeap(); laaoIL^  
h.init(data); &dJ\}O[r  
for(int i=0;i h.remove(); l1]'3]P(  
System.arraycopy(h.queue,1,data,0,data.length); n;~6'f xe  
} ~{[,0,lWU  
:bz;_DZP  
private static class MaxHeap{ BzI(  
Klqte*!  
void init(int[] data){ %(g!,!l)  
this.queue=new int[data.length+1]; zCSLV>.F  
for(int i=0;i queue[++size]=data; @;>Xy!G  
fixUp(size); gdG#;T'  
} >;k~B  
}  q #X[oVq  
\"$jj<gc  
private int size=0; .< -~k@ P  
x$6FvgP(  
private int[] queue; cDh\$7'b  
J24H}^~na  
public int get() { wyv%c/WlS  
return queue[1]; ]}nX$xy  
} /4,U@s)"/  
:A`jRe.  
public void remove() { }Z% j=c"d  
SortUtil.swap(queue,1,size--); Q@.%^1Mp  
fixDown(1); >TS=tK  
} |=EwZ mj-c  
file://fixdown 1Ewg_/R  
private void fixDown(int k) { ~}s0~j~  
int j; B{lL}"++0  
while ((j = k << 1) <= size) { (t"rzH  
if (j < size %26amp;%26amp; queue[j] j++; wy?Hp*E  
if (queue[k]>queue[j]) file://不用交换 @gihIysf  
break; (:|1h@K/R  
SortUtil.swap(queue,j,k); "oT]_WHqo  
k = j; lsB.>NlU  
} PF: E{_~  
} :6}cczQE|O  
private void fixUp(int k) { 'd9cCQ}  
while (k > 1) { d x"9jFn  
int j = k >> 1; p&3~n: Fo  
if (queue[j]>queue[k]) "Kf4v|6;  
break; Q&?B^[N*Q  
SortUtil.swap(queue,j,k); GlaZZ,   
k = j; #oEq)Vq>g|  
} (eO_]<wmky  
} q4ej7T8  
@{x+ln1r  
} e[t1V/ah  
EtA,ow  
} z. xRJ  
vjYG>YhV  
SortUtil: 8rSu,&<  
d4A3DTW  
package org.rut.util.algorithm; |p":s3K"Hy  
]d,#PF  
import org.rut.util.algorithm.support.BubbleSort; ( ALsc@K  
import org.rut.util.algorithm.support.HeapSort; d$v{oC }  
import org.rut.util.algorithm.support.ImprovedMergeSort; Bt"*a=t;  
import org.rut.util.algorithm.support.ImprovedQuickSort; ]`eJSk.  
import org.rut.util.algorithm.support.InsertSort; |sV@j_TX  
import org.rut.util.algorithm.support.MergeSort; juBzpQYj  
import org.rut.util.algorithm.support.QuickSort; x DX_s:A  
import org.rut.util.algorithm.support.SelectionSort; R5'_il  
import org.rut.util.algorithm.support.ShellSort; k1M?6TW&  
4I3)eS%2  
/** R|dSjEs  
* @author treeroot S-G#+ Ue2  
* @since 2006-2-2 mNr<=Z%b  
* @version 1.0 t[x[X4  
*/ 8Nxyc>8K~  
public class SortUtil { jp+#N pH  
public final static int INSERT = 1; <^B!.zQ  
public final static int BUBBLE = 2; LZrkFkiC  
public final static int SELECTION = 3; rYk   
public final static int SHELL = 4; uCGn9]  
public final static int QUICK = 5; 0/?=FM >  
public final static int IMPROVED_QUICK = 6; k{pn~)xg  
public final static int MERGE = 7; {m 5R=22^  
public final static int IMPROVED_MERGE = 8; LX iis)1  
public final static int HEAP = 9; ? p^':@=  
KPs @v@5M  
public static void sort(int[] data) { )\,hc$<=m  
sort(data, IMPROVED_QUICK); d,%@*v]S  
} S3_QOL  
private static String[] name={ =!PUKa3f<  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 5b%zpx0Y  
}; \}NZ] l  
DqlspT  
private static Sort[] impl=new Sort[]{ yy$7{9!  
new InsertSort(), *(]@T@yN  
new BubbleSort(), wvg>SfV,e  
new SelectionSort(), d)jX%Z$LC  
new ShellSort(), o$bD?Zn  
new QuickSort(), dG'5: ,n/  
new ImprovedQuickSort(), C$fQ[@  
new MergeSort(), j=TG&#e  
new ImprovedMergeSort(), XX'Rv]T  
new HeapSort() K iG/XnS  
}; [[d@P%X&  
qVmG"et'J  
public static String toString(int algorithm){ iC\t@BVS  
return name[algorithm-1]; &|) (lX  
} WJ(E3bb  
Vr%!rQ  
public static void sort(int[] data, int algorithm) { ] e]l08  
impl[algorithm-1].sort(data); Y([vma>U]  
} ]; G$~[  
0i65.4sK  
public static interface Sort { OPwO`pN  
public void sort(int[] data); Oz_|pu  
} |&a[@(N:zf  
^)|1T#Tz  
public static void swap(int[] data, int i, int j) { "M5&&\uT  
int temp = data; Og3bV_,"  
data = data[j]; (_O_zu8_  
data[j] = temp; 9:jZ3U  
} cE0Kvqe`  
} Ok2>%e  
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:
3+5=?,请输入中文答案:八 正确答案:八