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
  • 8004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。 FHw%ynC  
插入排序: yxHo0U  
,?erAI  
package org.rut.util.algorithm.support; -grmmE]/  
6V%}2YE?X  
import org.rut.util.algorithm.SortUtil; vt2. i$u  
/** G<D8a2q  
* @author treeroot hTzj{}w  
* @since 2006-2-2 R[j?\#  
* @version 1.0 Z4Dx:m-  
*/ |-b\N6 }  
public class InsertSort implements SortUtil.Sort{ n:OXv}pv  
#UoFU{6tM  
/* (non-Javadoc) &:&l+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ix2i.wdD  
*/ }P0bNY5?%  
public void sort(int[] data) { R6od{#5H$  
int temp; N%}J:w  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); xb3G,F  
} wbAwmOiZ  
} Gd_0FF.  
} ,v K%e>e&  
{VW\EOPV~  
} L6PgWc;m  
4KtD  k  
冒泡排序: oI/_WY[t  
][jwy-Uy;  
package org.rut.util.algorithm.support; ;_c&J&I  
=VzJ>!0  
import org.rut.util.algorithm.SortUtil; j \jMN*dmV  
|ymW0gh7o$  
/** r9WR1&T)  
* @author treeroot Dg.~"h5mT  
* @since 2006-2-2  x _>1x#  
* @version 1.0 U&1O  
*/ :ig=zETM  
public class BubbleSort implements SortUtil.Sort{ # o/;du  
.1RQ}Ro,<  
/* (non-Javadoc) hdx_Tduue  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9 d a=q  
*/ (WC =om  
public void sort(int[] data) { m(U.BXo  
int temp; tj~r>SRb+  
for(int i=0;i for(int j=data.length-1;j>i;j--){ pNOE KiJ  
if(data[j] SortUtil.swap(data,j,j-1); ~6n|GxR.[  
} PiM(QR  
} i@nRZ$K  
} iKE&yO3  
} Awxm[:r>^  
-Yse^(^"s  
} W ,6q1  
s 0Uid&qE  
选择排序: e}yF2|0FD  
(0q`eO2  
package org.rut.util.algorithm.support; z2YYxJ c&w  
9DhM 9VU  
import org.rut.util.algorithm.SortUtil; ygnZ9ikh<-  
hRX9Du`$  
/** =Pw{1m|k  
* @author treeroot $I*}AUp v?  
* @since 2006-2-2 #X'-/q`.  
* @version 1.0 " $farDDoF  
*/ ;&=CZ6vH  
public class SelectionSort implements SortUtil.Sort { S8dfe~|7:  
/B?wn=][  
/* kE'p=dXx  
* (non-Javadoc) 8QJr!#u  
* jFdgFK c)  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 36(qe"s  
*/ en'[_43  
public void sort(int[] data) { HJN GO[*g  
int temp; ~/K&=xE  
for (int i = 0; i < data.length; i++) { NzyEsZ]$  
int lowIndex = i; ai$l7]7  
for (int j = data.length - 1; j > i; j--) { pP":,8Q{  
if (data[j] < data[lowIndex]) { qfl!>  
lowIndex = j; KJoa^e;~  
} X5/j8=G H`  
} 'uL$j=vB  
SortUtil.swap(data,i,lowIndex); 0vfMJzk  
} j[gqS%  
} 9`/e= RL  
,dQ*0XO!  
} 8iY.!.G#|  
l hYJectJa  
Shell排序: 1gK^x^l*f  
8Pa*d/5Y(  
package org.rut.util.algorithm.support; Y QC.jnb2  
'6qH@r4Z<  
import org.rut.util.algorithm.SortUtil; fDns r" T  
U.SC,;N^  
/** iu=Mq|t0  
* @author treeroot )u Hat#  
* @since 2006-2-2 [>?|wQy>=  
* @version 1.0 4z5qXI/<m4  
*/ faRQj:R8  
public class ShellSort implements SortUtil.Sort{ ?GNR ab  
9)vU/fJ|  
/* (non-Javadoc) 6/L[`n"G  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _VdJFjY?zc  
*/ u;nn:K1QFr  
public void sort(int[] data) { n$SL"iezW?  
for(int i=data.length/2;i>2;i/=2){ 2EpQ(G J  
for(int j=0;j insertSort(data,j,i); h )Y .jY  
} y|O3*`&m  
} liPrxuP`  
insertSort(data,0,1); L@[}sMdq(  
} A}9^,C$#  
3l~7  
/** >g!$H}\  
* @param data <Rw2F?S~)n  
* @param j kYkA^Aq  
* @param i +1c r6a  
*/ dLH@,EKl)  
private void insertSort(int[] data, int start, int inc) { e"^WXP.t&  
int temp; h!(# /  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); +sn0bi/rG  
} v2]N5  
} OCdX'HN5Y  
} ;U?=YSHk7  
0AWxU?$A4  
} "B__a(  
}o!b3*#  
快速排序: sYXLVJ>b  
?E!M%c@,  
package org.rut.util.algorithm.support; ]#shuZ##>0  
\ky oA Z  
import org.rut.util.algorithm.SortUtil; 2<J2#}+ \  
-:_3N2U=+  
/** b)Nd}6}<?  
* @author treeroot Z:h'kgG&  
* @since 2006-2-2 %u9 Q`  
* @version 1.0 Mj>Q V(L8t  
*/ e/ g9r  
public class QuickSort implements SortUtil.Sort{ k}g4?  
qmn l  
/* (non-Javadoc) 8SroA$^n  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) r\fkx>  
*/ $ZyOBxI  
public void sort(int[] data) { 4Hf'/%kW  
quickSort(data,0,data.length-1); XLiwE$:t%  
} ~5|R`%  
private void quickSort(int[] data,int i,int j){ fGe ie m  
int pivotIndex=(i+j)/2; s~(`~Y4  
file://swap )Az0.}  
SortUtil.swap(data,pivotIndex,j); ImB5F'HI$  
^"lEa-g&  
int k=partition(data,i-1,j,data[j]); $HOe){G  
SortUtil.swap(data,k,j); Q$p3cepsK  
if((k-i)>1) quickSort(data,i,k-1); wG s'qL"z  
if((j-k)>1) quickSort(data,k+1,j); 5.\|*+E~  
-XnIDXM  
} &$T7eOiZ  
/** :/PxfN5  
* @param data %=K[C  
* @param i "+O/OKfR0  
* @param j _Ad63.Uq))  
* @return [C-FJ>=S  
*/ GK6~~ga=  
private int partition(int[] data, int l, int r,int pivot) { @||nd,i`n~  
do{ &QQ6F>'T  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); It2:2  
SortUtil.swap(data,l,r); {C]tS5$Z  
} _Hx'<%hhI  
while(l SortUtil.swap(data,l,r); TT;ls<(Lg  
return l; 9k9}57m.i  
} 'HV@i)h0%V  
x5g&?2[  
} I4qS8~+#  
H^o_B1  
改进后的快速排序: @>ys,dy  
$P8AU81  
package org.rut.util.algorithm.support; Rc9>^>w  
6,1oLvU  
import org.rut.util.algorithm.SortUtil; pfc"^Gi8  
?)<zzL",  
/** op-\|<i  
* @author treeroot _'y`hKeI[  
* @since 2006-2-2 ^"iL|3d  
* @version 1.0 A[fTpS~~%  
*/ hDg"?{  
public class ImprovedQuickSort implements SortUtil.Sort { Fku<|1}&y  
7NOF^/nU  
private static int MAX_STACK_SIZE=4096; /i_FA]Go  
private static int THRESHOLD=10; _ A{F2M  
/* (non-Javadoc) !%(kMN  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9RS viIi$  
*/ t<}N>%ZO  
public void sort(int[] data) { k=p[Mlic/  
int[] stack=new int[MAX_STACK_SIZE]; t5 ^hZZ  
i& \ >/ 1  
int top=-1; CO, {/  
int pivot; B )\;Ja  
int pivotIndex,l,r; qTWQ!  
'O2/PU2_  
stack[++top]=0; f#I#24)RH  
stack[++top]=data.length-1; T#Bj5H  
ON>l%Ae4G  
while(top>0){ .n.N.e  
int j=stack[top--]; iM1E**WCtv  
int i=stack[top--]; g^po$%I '  
:YX5%6  
pivotIndex=(i+j)/2; OM7AK B=S  
pivot=data[pivotIndex]; fV6ddh  
7#Fcn  
SortUtil.swap(data,pivotIndex,j); e=# D1  
lc [)Ev  
file://partition p,(W?.ZDN?  
l=i-1;  Ks^wX  
r=j; g&. OJ  
do{ NTCFmdbs 6  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); TZg1,Z  
SortUtil.swap(data,l,r); t1yfSStp  
} >@a7Zzl0H  
while(l SortUtil.swap(data,l,r); 77+3CME{'  
SortUtil.swap(data,l,j); @x[A ^  
k %sxA  
if((l-i)>THRESHOLD){ \j.l1O  
stack[++top]=i; T.%yeJiE  
stack[++top]=l-1; JXt_  
} Ck m:;q  
if((j-l)>THRESHOLD){ aehB,l0  
stack[++top]=l+1; "?iyvzo  
stack[++top]=j; K,PN:  
} 96; gzG@1!  
IQd~` G  
} Tgla_sMb  
file://new InsertSort().sort(data); M U '-  
insertSort(data); ,@M<O!%Cs  
}  r/)ZKO,  
/** <4zSh3  
* @param data fceO|mSz_  
*/ qf@P9M  
private void insertSort(int[] data) { vwa*'C  
int temp; j`Ek:  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ]|K6Z>V  
} &?xtmg<d  
} f4f)9n  
} t -}IKrbv  
Dwr"-  
} OP=-fX|*Q  
f+)LVT8p  
归并排序: nq+6ipx  
B o%Sl  
package org.rut.util.algorithm.support; SY@;u<Pd   
jlqSw4_  
import org.rut.util.algorithm.SortUtil; E1w8d4P,G  
c7[Ba\Cr4h  
/** zR/mz)6_  
* @author treeroot ~oK0k_{~  
* @since 2006-2-2 g2M1zRm;  
* @version 1.0 zqQ[uO]m?  
*/ ^;[_CF _  
public class MergeSort implements SortUtil.Sort{ $Tt.r  
Oc.8d<  
/* (non-Javadoc) '0o^T 7C  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) t0/Ol'kgs  
*/ cBOt=vg,5  
public void sort(int[] data) { 4? rEO(SZ  
int[] temp=new int[data.length]; 1M55!b  
mergeSort(data,temp,0,data.length-1); |(,{&\  
}  =Uo*-EH  
utn,`v   
private void mergeSort(int[] data,int[] temp,int l,int r){ 3rJ LLYR  
int mid=(l+r)/2; MJH>rsTQ  
if(l==r) return ; ^Q+z^zlC  
mergeSort(data,temp,l,mid); |942#rM  
mergeSort(data,temp,mid+1,r); Z0XQ|gkH  
for(int i=l;i<=r;i++){ <y7Hy&&y-  
temp=data; -H|!KnR  
} YV>&v.x0;  
int i1=l; d@b2XCh<K  
int i2=mid+1; k$DRX) e  
for(int cur=l;cur<=r;cur++){ Imclz4'8  
if(i1==mid+1) &h7 n>q  
data[cur]=temp[i2++]; b+f '  
else if(i2>r) q& KNK  
data[cur]=temp[i1++]; W?ghG  
else if(temp[i1] data[cur]=temp[i1++]; O9ro{ k  
else Pj BBXI1i  
data[cur]=temp[i2++]; m0^~VK|  
} C58B(Ndo  
} u{D]Kc?n  
uFlf#t =  
} :C0)[L  
yB{1&S5 C  
改进后的归并排序: &arJe!K  
gnb+i`  
package org.rut.util.algorithm.support; _,e4?grP#  
Z}SqiT  
import org.rut.util.algorithm.SortUtil; o,0 Z^"|  
_oefp*iWS  
/** 7,uD7R_  
* @author treeroot [;:ocy  
* @since 2006-2-2 lKqFuLHwF  
* @version 1.0 "W9z>ezp  
*/ i2[8^o`_  
public class ImprovedMergeSort implements SortUtil.Sort { xnw'&E  
+<B"g{dLuX  
private static final int THRESHOLD = 10; Bw[#,_  
&#.>-D{  
/* pDhUD}1G  
* (non-Javadoc) l!\~T"-7;:  
* iVmy|ewd  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Lso%1M  
*/ 9gIim   
public void sort(int[] data) { 8&qtF.i-6  
int[] temp=new int[data.length]; <KoOJMx(  
mergeSort(data,temp,0,data.length-1); P /q] u  
} XSh [#qJ  
@s,kx.S  
private void mergeSort(int[] data, int[] temp, int l, int r) { $ma@z0%8}  
int i, j, k; /paZJ}Pr.  
int mid = (l + r) / 2; [ThAv Q_$  
if (l == r) 'coY`B; 8  
return; 'jy e*  
if ((mid - l) >= THRESHOLD) EV|W:;Sg  
mergeSort(data, temp, l, mid); yDRi  
else ;Uy}(  
insertSort(data, l, mid - l + 1); #v6<9>%  
if ((r - mid) > THRESHOLD) \uJ+~db=  
mergeSort(data, temp, mid + 1, r); 8 ~Pdr]5  
else q; C6ID`  
insertSort(data, mid + 1, r - mid); { qCFd  
IQ xi@7%&  
for (i = l; i <= mid; i++) { ]kO|kIs  
temp = data; (/{bJt~b  
} 3`NSSS  
for (j = 1; j <= r - mid; j++) { Tv~Ho&LS  
temp[r - j + 1] = data[j + mid]; ^D ;EbR  
} 9}a&:QTHR  
int a = temp[l]; M+lr [,c  
int b = temp[r]; ;(K"w*  
for (i = l, j = r, k = l; k <= r; k++) { J L1]auO*  
if (a < b) { GSfU*@L3  
data[k] = temp[i++]; >CHb;*U  
a = temp; T?tZ?!6  
} else { la^K|!|  
data[k] = temp[j--]; z 8#{=e  
b = temp[j]; Ip *8R]W  
} Ev3,p`zS._  
} 7m:TY>{  
} {7_C|z:'p&  
&78lep  
/** -uhVw_qq#  
* @param data .VohW=D3  
* @param l |M18/{  
* @param i QpS7 nGev  
*/ TS=U%)Ik  
private void insertSort(int[] data, int start, int len) { ;sx4w!Y,  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); s'Qmr s a  
} f=7[GZoDn  
} NR%_&%qQA  
} 6(ER$  
} '#Do( U'  
]M~ 7L[  
堆排序: ]x%sX|Rj  
)a%E $`   
package org.rut.util.algorithm.support; us.IdG  
kX)*:~*  
import org.rut.util.algorithm.SortUtil; `v'yGsIV  
W[>qiYf^b  
/** 7=&+0@R#/d  
* @author treeroot TFz k5  
* @since 2006-2-2 b7gN|Hw5 H  
* @version 1.0 Zvra >%  
*/ 7Rc>LI* '  
public class HeapSort implements SortUtil.Sort{ D'^UZZlI^I  
.*z$vl  
/* (non-Javadoc) V=YDqof  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) SQ'%a-Mct  
*/ uh>"TeOi  
public void sort(int[] data) { Mq#Hi9SKY  
MaxHeap h=new MaxHeap(); %:sP#BQM  
h.init(data); ]K%d   
for(int i=0;i h.remove(); #5iwDAw:|r  
System.arraycopy(h.queue,1,data,0,data.length); !Fs<r)j  
} /-(OJN5F^  
0<^Q j.(9  
private static class MaxHeap{ 0WyOORuK  
<UTO\w%  
void init(int[] data){ 7g%\+%F I  
this.queue=new int[data.length+1]; S,a:H*Hf  
for(int i=0;i queue[++size]=data; w$ ""])o,  
fixUp(size); _lC0XDZ  
} `(6cRT`Wp  
} #/\Zo &V8  
;*d?Qe:  
private int size=0; :8N{;aui  
s{42_O?,c  
private int[] queue; nB/`~_9  
?u0qYep:  
public int get() { 7ZUS  
return queue[1]; FtDF}   
} v+( P4f S  
kovJ9  
public void remove() { [fs.D /  
SortUtil.swap(queue,1,size--); B3I0H6O  
fixDown(1); >LB*5  
} z$Qy<_l  
file://fixdown Zq:c2/\c}  
private void fixDown(int k) { nB}eJD|  
int j; ke)<E98DC  
while ((j = k << 1) <= size) { BHU=TK@GR  
if (j < size %26amp;%26amp; queue[j] j++; n1b^o~agwC  
if (queue[k]>queue[j]) file://不用交换 ~ cI`$kJ  
break; >x ]{c b/m  
SortUtil.swap(queue,j,k); *o<|^,R  
k = j; v9Lf|FXo&  
} iT+t  
} *zdUCX  
private void fixUp(int k) { P!{J28dj  
while (k > 1) { .sb0|3&  
int j = k >> 1; W'e{2u  
if (queue[j]>queue[k]) 5D mSgP:  
break; M7YbRl  
SortUtil.swap(queue,j,k); *=Ma5J.  
k = j; : z\||f  
} wBEBj7(y  
} 7Oi<_b  
+KOhDtLMG  
} '"h}l`  
;Q[E>j?w=  
} 9j5B(_J^  
-WGlOpg0;  
SortUtil: [I[*?9}$"  
Z5`V\$  
package org.rut.util.algorithm; c]|Tg9AW  
g9IIC5  
import org.rut.util.algorithm.support.BubbleSort; fr8';Jm  
import org.rut.util.algorithm.support.HeapSort; !|cM<}TF,  
import org.rut.util.algorithm.support.ImprovedMergeSort; rY$ wC%  
import org.rut.util.algorithm.support.ImprovedQuickSort; SUL\|z`5  
import org.rut.util.algorithm.support.InsertSort; .73sY5hdTN  
import org.rut.util.algorithm.support.MergeSort; 9MbF:  
import org.rut.util.algorithm.support.QuickSort; AR g]GV/L  
import org.rut.util.algorithm.support.SelectionSort; 8sq0 BH  
import org.rut.util.algorithm.support.ShellSort; T`c:16I  
y-Lm^ GW4  
/** )[=C@U  
* @author treeroot _&]Gw, ~/i  
* @since 2006-2-2 dx.Jv/Mb  
* @version 1.0 Ia:M+20n  
*/ Q{ { =  
public class SortUtil { #.LI `nYA  
public final static int INSERT = 1; X& XD2o"rt  
public final static int BUBBLE = 2; gU?M/i2  
public final static int SELECTION = 3; g$z6*bL  
public final static int SHELL = 4; Ze?H  
public final static int QUICK = 5; dX-j3lM:#  
public final static int IMPROVED_QUICK = 6; K'[kl'  
public final static int MERGE = 7; V)I Tk \  
public final static int IMPROVED_MERGE = 8; *QoQ$alHH  
public final static int HEAP = 9; \3x+Z!  
$6d5W=u$H  
public static void sort(int[] data) { oYWHO<b  
sort(data, IMPROVED_QUICK); =vL >&$  
} 41+@!`z7  
private static String[] name={ 5K =>x<  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" Z0M|Bv9_  
}; 02^Nf7DMR  
O81'i2M J9  
private static Sort[] impl=new Sort[]{ uzS;&-nA  
new InsertSort(), _iu^VK,}  
new BubbleSort(), k?Njge6@  
new SelectionSort(), u\f Qa QV  
new ShellSort(), k40`,;}9  
new QuickSort(), ) LohB,?  
new ImprovedQuickSort(), (7X^z&2  
new MergeSort(), j<h0`v  
new ImprovedMergeSort(), 1.nYT*  
new HeapSort() R !>SN0  
}; d\tA1&k71  
Jn20^YG  
public static String toString(int algorithm){ 3+! G9T!  
return name[algorithm-1]; 0u I=8j  
} /@",5U#  
LE g#W  
public static void sort(int[] data, int algorithm) { uao#=]?)  
impl[algorithm-1].sort(data); =!($=9  
} {=+'3p  
x(:alG%#  
public static interface Sort { Kw`}hSE>o  
public void sort(int[] data); ~Vc`AcWP  
} Z_Y gV:jc  
_ujhD  
public static void swap(int[] data, int i, int j) { yz%o?%@  
int temp = data; MO|8A18B  
data = data[j]; )ZfbM|  
data[j] = temp; t;t;+M|W  
} n9k-OGJ  
} W}WDj:  
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