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
  • 9092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。 $c0SWz  
插入排序: @Th.=  
IGql^,b  
package org.rut.util.algorithm.support; U*/  
a#!Vi93  
import org.rut.util.algorithm.SortUtil; <PW*vo9v  
/** /{7x|ay]  
* @author treeroot m&,d8Gss^  
* @since 2006-2-2 8,Yc1  
* @version 1.0 F$ Us! NN  
*/ )aqu f<u@  
public class InsertSort implements SortUtil.Sort{ u4$d#0sA  
dT,X8 "  
/* (non-Javadoc) i[d-n/)  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) KBzEEvx/$  
*/ 6luCi$bL  
public void sort(int[] data) { {exF" ap  
int temp; 0$ &Z_oJ  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ?`\<t$M  
} :<ujk  
} \UJ:PW$7  
} $a\q<fN}  
wx(| $2{h  
} NNutpA}s  
3-32q)8  
冒泡排序: UOF5&>MLb  
S~YrXQ{_>-  
package org.rut.util.algorithm.support; nP'ab_>b  
(5-"5<-@R  
import org.rut.util.algorithm.SortUtil; `;*=2M<c  
XnWr~h{b  
/** {FQ dDIj#  
* @author treeroot a>sUq["  
* @since 2006-2-2 `Lm ArW:  
* @version 1.0 B_`A[0H  
*/ 4OCz:t  
public class BubbleSort implements SortUtil.Sort{ LLgN%!&  
,0<|&D  
/* (non-Javadoc) QEUg=*3W=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) z2!NBOv  
*/ ,a$LT   
public void sort(int[] data) { 4s`*o/it  
int temp; XPUH\I=  
for(int i=0;i for(int j=data.length-1;j>i;j--){ Z i7(lG  
if(data[j] SortUtil.swap(data,j,j-1); d7Q. 'cyQ  
} Js^ADUy  
} ,n &|+&  
} 4x8mJ4[H^  
} e[915Q_  
sXoBw.^Ir_  
} F8b*Mt}p  
`mw@"  
选择排序: W@"M/<r@/  
yuFuYo&[?v  
package org.rut.util.algorithm.support; X /5tZ@  
q7 Uu 8JXF  
import org.rut.util.algorithm.SortUtil; ixiRFBUcF~  
xZ`t~4qR  
/** c)@M7UK[  
* @author treeroot ,dBtj8=  
* @since 2006-2-2 !6<2JNf  
* @version 1.0 J>hl&J  
*/ h]@Xucc  
public class SelectionSort implements SortUtil.Sort { q#sMew\{  
e;rs!I !Yw  
/* BAoqO Xv  
* (non-Javadoc) ?H*_:?=6  
* ODv)-J  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1Lj\"+.  
*/ )}G HG#D{  
public void sort(int[] data) { !3yR?Xem}  
int temp; &e,xN;  
for (int i = 0; i < data.length; i++) { v%zI~g.L  
int lowIndex = i; _?q\tyf3  
for (int j = data.length - 1; j > i; j--) { ?A62VV51CN  
if (data[j] < data[lowIndex]) { G-"#3{~2  
lowIndex = j; (CZRX9TT1  
} lzS"NHs<g(  
} 6_zL#7E'  
SortUtil.swap(data,i,lowIndex);  r) X?H  
} oVC~RKA*  
} b;soMilz  
K3 ]hUe#  
} ,8$;|#d  
u =rY  
Shell排序: S'E6#   
3kYUO-qw  
package org.rut.util.algorithm.support; hC6$>tl  
C8&)-v|  
import org.rut.util.algorithm.SortUtil; gN mp'Lm  
Fzu"&&>0$  
/** 7;|6g8=  
* @author treeroot #XJYkaL  
* @since 2006-2-2 dC,F?^  
* @version 1.0 uu#ALB Jm  
*/ zKiKda%)  
public class ShellSort implements SortUtil.Sort{ lX5(KUN  
83TN6gW  
/* (non-Javadoc) qQpR gzw  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) aK1|b=gVj  
*/ Lk3@E u)  
public void sort(int[] data) { (''`Ce  
for(int i=data.length/2;i>2;i/=2){ yRieGf1'SD  
for(int j=0;j insertSort(data,j,i); .'.|s?s  
} >DbG$V<v'  
} ;Rwr5  
insertSort(data,0,1); Z71"d"  
} yRvq3>mU  
OSkZW  
/** (#Y2H  
* @param data ,HMB`vF  
* @param j 4qyL' \d[  
* @param i @9vz%1B<l  
*/ e j!C^  
private void insertSort(int[] data, int start, int inc) { 1Ete;r%5=  
int temp; x5PQ9Bw,  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); "F%cn@l  
} vRT1tOQ$  
} e?Cbl'  
} )C|>M'g@v  
evszfCH'J  
} QKOo # 7  
nH T2M{R  
快速排序: vkBngsS  
bcj7.rh]'h  
package org.rut.util.algorithm.support; 9.%{M#j  
W"wP%  
import org.rut.util.algorithm.SortUtil; Keof{>V=CA  
v5<Ext rV  
/** vhhsOga  
* @author treeroot q~l&EH0  
* @since 2006-2-2 .}CP Z3y  
* @version 1.0 IS'=%qhC`  
*/ #;^.&2Lt  
public class QuickSort implements SortUtil.Sort{ 1Z`<HW"  
~Dkje  
/* (non-Javadoc) \" .3x PkE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a_x|PbD  
*/ *y N,e.t  
public void sort(int[] data) { 7 v`Y*D  
quickSort(data,0,data.length-1); 9*,5R,#  
} ld2 \/9+n  
private void quickSort(int[] data,int i,int j){ :&TOQ<vM  
int pivotIndex=(i+j)/2; k# &y  
file://swap >_&+gn${  
SortUtil.swap(data,pivotIndex,j); ,"}'NH@  
`^w5/v#  
int k=partition(data,i-1,j,data[j]); LClPAbr  
SortUtil.swap(data,k,j); ?}lCS7&  
if((k-i)>1) quickSort(data,i,k-1); ]qv/+~Qs>  
if((j-k)>1) quickSort(data,k+1,j); ?,s{M^sj^  
&OuyjW4  
} uMqo)J@s  
/** YQYN.\  
* @param data BHFWig*{  
* @param i 7i/?+|  
* @param j V?5_J%  
* @return //6m2a  
*/ y4envjl 0  
private int partition(int[] data, int l, int r,int pivot) { ~'T]B{.+J  
do{ C(?lp  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); `9 $?g|rB  
SortUtil.swap(data,l,r); ^M?uv{354  
} 4Q3Q.(  
while(l SortUtil.swap(data,l,r); A?6b)B/e?  
return l; eUBk^C]\  
} R8HA X  
*(r85lEou)  
} TWxMexiW  
LW,!B.`@  
改进后的快速排序:  '5[L []A  
zHu:Ec7  
package org.rut.util.algorithm.support; nC`=quM9  
J.O;c5wL  
import org.rut.util.algorithm.SortUtil; LXw&d]P  
Hj2P|;2S  
/** 8qBw;A)  
* @author treeroot _;0:wXib =  
* @since 2006-2-2 AY *  
* @version 1.0 G-} zkax  
*/ !)&-\!M>  
public class ImprovedQuickSort implements SortUtil.Sort { 6NZ f!7,B  
kuUH 2:L  
private static int MAX_STACK_SIZE=4096; VY![VnHsB  
private static int THRESHOLD=10; ^{Mx?]z  
/* (non-Javadoc) @];Xbbw+c  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y @K9Hl  
*/ s'5 jvlG  
public void sort(int[] data) { rg\|-_.es'  
int[] stack=new int[MAX_STACK_SIZE]; }*0%wP  
(D~mmffY1  
int top=-1; rfCoi>{<  
int pivot; NGb`f-:jw  
int pivotIndex,l,r; E2dSOZS:)%  
@zPWu}&m  
stack[++top]=0; n287@Y4Ru  
stack[++top]=data.length-1; & f!!UZMt)  
x&8?/BR  
while(top>0){ ~%sDQt\S  
int j=stack[top--]; OGae]O<  
int i=stack[top--]; ^(6.P)$  
 T>LtN  
pivotIndex=(i+j)/2; Q0M8 }  
pivot=data[pivotIndex]; ]n!pn#Q  
`d8$OC  
SortUtil.swap(data,pivotIndex,j); tU?lfU[7  
]Q)TqwYF  
file://partition 3EzI~Zsx  
l=i-1; G%4vZPA  
r=j; '3<YZWS  
do{ i44KTC"sB  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ,cj34W`FWq  
SortUtil.swap(data,l,r); {qh`8  
} 'RG`DzuF  
while(l SortUtil.swap(data,l,r); 3 #jPQ[+  
SortUtil.swap(data,l,j); "h)+fAT|,  
tb_}w@:kU  
if((l-i)>THRESHOLD){ 6%:'2;xM  
stack[++top]=i; %=NqxF>>  
stack[++top]=l-1; &Cdd  
} 67f#Z&r2k  
if((j-l)>THRESHOLD){ Ho\z ^w+T`  
stack[++top]=l+1; O0~[]3Y[=  
stack[++top]=j; =I*"vwc?  
} _<5> E  
EI/_=.d  
} g:OVAA  
file://new InsertSort().sort(data); xx41Qw>\W  
insertSort(data); _YbHnb  
} hQX|wWh  
/** /~AajLxu3W  
* @param data OZ7MpQ  
*/ U[Z1@2zLx  
private void insertSort(int[] data) { #<l ;YT8  
int temp; D4 e)v%  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); LeO5BmwHR  
} }.e*=/"MB  
} ^>]p4Q3 6  
} bD49$N?>  
u6|7P<HUfb  
} "esV#%:#J  
?K}/b[[0v  
归并排序: f$/Daq <M  
R#Ss_y  
package org.rut.util.algorithm.support; F5E KWP  
b/2t@VlL  
import org.rut.util.algorithm.SortUtil; 6IeHZ)jGj  
~Uga=&  
/** v bh\uv&  
* @author treeroot Vwl`A3Y  
* @since 2006-2-2 bC"#.e  
* @version 1.0 u QCQ$  
*/ O^`Y>>a  
public class MergeSort implements SortUtil.Sort{ $L;7SY?  
IWKQU/l!  
/* (non-Javadoc) 9I.="b=J)  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {OB\~$TH  
*/ [?]s((A~B  
public void sort(int[] data) { h!MZ 6}zb)  
int[] temp=new int[data.length]; 9n44 *sZ  
mergeSort(data,temp,0,data.length-1); x/5%a{~j2  
} j63w(Jv/  
<51(q_f  
private void mergeSort(int[] data,int[] temp,int l,int r){ V =1Y&y  
int mid=(l+r)/2; yPuT%H&i  
if(l==r) return ; 3<?(1kSo>>  
mergeSort(data,temp,l,mid); 3O$Q>.0w/  
mergeSort(data,temp,mid+1,r); l$.C40v  
for(int i=l;i<=r;i++){ .PxtcC.K  
temp=data; n802!d+Tn  
} }JvyjE  
int i1=l; /z~;.jRg  
int i2=mid+1; <BT}Tv9  
for(int cur=l;cur<=r;cur++){ #O`n Q  
if(i1==mid+1) b+3{ bE  
data[cur]=temp[i2++]; P>jlFm  
else if(i2>r) "TG}aS  
data[cur]=temp[i1++]; ar>S_VW*  
else if(temp[i1] data[cur]=temp[i1++]; kM@8RAxA  
else 8'/vW~f  
data[cur]=temp[i2++]; K]Ed-Tz8QZ  
} * 496"kU  
} $40tAes9  
9<,\ +}^{  
}  ;-U :t4  
c1!h;(&  
改进后的归并排序: FRX'"gIR0  
P(qUx9  
package org.rut.util.algorithm.support; )*$'e<?`  
u9sffX5x[J  
import org.rut.util.algorithm.SortUtil;  xUzfBn  
-*+7-9A I  
/** mWCY%o@  
* @author treeroot /ey}#SHm,  
* @since 2006-2-2 8 w^i  
* @version 1.0 dN;C-XF3s  
*/ 62a{Ggs{  
public class ImprovedMergeSort implements SortUtil.Sort { JtvAi\52$  
dsrzXmE0  
private static final int THRESHOLD = 10; wVV'9pw}  
If2f7{b  
/* mI9~\k&9  
* (non-Javadoc) M>8#is(pV  
* oM Q+=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *|ubH?71%Y  
*/ ;S2^f;q~$  
public void sort(int[] data) { B0nkHm.Sj  
int[] temp=new int[data.length]; 8T7[/"hi\  
mergeSort(data,temp,0,data.length-1); dk-Y!RfNx  
} aJK8G,Vk  
- =QA{n  
private void mergeSort(int[] data, int[] temp, int l, int r) { ;NB J@E,  
int i, j, k; ^Jsx^?  
int mid = (l + r) / 2; jt=mK ,%  
if (l == r) q>o1kTI  
return; 1i^!A&  
if ((mid - l) >= THRESHOLD) R\ <HR9r  
mergeSort(data, temp, l, mid); ~ex1,J*}t  
else E0Ig/ j  
insertSort(data, l, mid - l + 1); {3@/@jO?  
if ((r - mid) > THRESHOLD) Gpo(Zf?  
mergeSort(data, temp, mid + 1, r); ST] h NM  
else &mp=jGR  
insertSort(data, mid + 1, r - mid); ebp18_a|  
ixp(^>ZN  
for (i = l; i <= mid; i++) { YN.rj-;^+  
temp = data; )lBke*j~  
} .Hc]?R ]  
for (j = 1; j <= r - mid; j++) { DXsp 2  
temp[r - j + 1] = data[j + mid]; 349W0>eOT  
} #1&w fI$  
int a = temp[l]; 2LEf"FH0~  
int b = temp[r]; MG<F.u  
for (i = l, j = r, k = l; k <= r; k++) { /87?U; |V  
if (a < b) { 7[.aAGTZ;  
data[k] = temp[i++]; ,J!G-?:@n  
a = temp; 5@F1E8T  
} else { z~UqA1r  
data[k] = temp[j--]; &X }GJLC3  
b = temp[j]; Mx4 <F "9  
} 4&&((H  
} 6"/cz~h  
} n2Q~fx<6%  
:l'61$=  
/** 4D0=3Vy  
* @param data D/5 ah_;  
* @param l .|G([O^H  
* @param i B_aLqB]U  
*/ dpxP  
private void insertSort(int[] data, int start, int len) { !Z 3iu  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); DwMq  
} {D={>0  
} JS1$l+1  
} U\*}}   
} rB}Iwp8  
s9>-Q"(y  
堆排序: LK-2e$1  
G\@ uj>Z  
package org.rut.util.algorithm.support;  <]2X~+v  
96fbMP+7R  
import org.rut.util.algorithm.SortUtil; l c?9B  
A9`& Wnw?  
/** 2"cUBFc1I  
* @author treeroot @!1o +x  
* @since 2006-2-2 om@GH0o+  
* @version 1.0 Z@4 BTA  
*/ 'avzESe~'  
public class HeapSort implements SortUtil.Sort{ ...|S]a  
| :7O  
/* (non-Javadoc) :70[zo7n'  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nYhI0q  
*/ W|XW2`3p  
public void sort(int[] data) { 7O',X Y  
MaxHeap h=new MaxHeap(); 8E`A`z  
h.init(data); UFr ]$m&  
for(int i=0;i h.remove(); qRlS^=#  
System.arraycopy(h.queue,1,data,0,data.length); 0<d9al|J  
} e%Rg,dX  
OuWG.Za  
private static class MaxHeap{ __dSEOGoe  
?Imq4I~)  
void init(int[] data){ v0+mh]  
this.queue=new int[data.length+1]; ,l+lokD-#  
for(int i=0;i queue[++size]=data; ve|ig]$5g<  
fixUp(size); `!V=~"ve  
} J$Uj@M  
} { }Q!./5  
(v+nn1,  
private int size=0; tbG^9d  
k]K][[s`  
private int[] queue; %Bn"/0,  
kG 7]<^Os3  
public int get() { Osz:23(p  
return queue[1]; $o2H#"  
} 6b`3AAGU"  
X` r~cc  
public void remove() { | >X5@  
SortUtil.swap(queue,1,size--); fhp\of/@ R  
fixDown(1); 1- Jd Qs6  
} ^Y[.-MJt+  
file://fixdown hA 1_zKZ  
private void fixDown(int k) { !6.}{6b  
int j; m3[R   
while ((j = k << 1) <= size) { ;7=pNK  
if (j < size %26amp;%26amp; queue[j] j++; Y<0}z>^  
if (queue[k]>queue[j]) file://不用交换 onqfmQ,3E  
break; as%@dUK?  
SortUtil.swap(queue,j,k);  }^3CG9%  
k = j; X0G6W p  
} r Z)?uqa  
} \zOo[/-<  
private void fixUp(int k) { ~gZ"8frl  
while (k > 1) { ( $s%5|  
int j = k >> 1; noI>Fw<V  
if (queue[j]>queue[k]) d rRi<7 i  
break; g }\ G@7Q  
SortUtil.swap(queue,j,k); %?  87#|  
k = j; 1j4tR#L  
} f0Wbc\L[  
} SlK 6KnX  
m ^?a/  
} *DBm"{q%&k  
at<N?r  
} [ {@0/5i  
)c432).Z  
SortUtil: 9W5~I9%  
5=cS5q@  
package org.rut.util.algorithm; L F<{/c9,  
vT1StOx<V  
import org.rut.util.algorithm.support.BubbleSort; iG+hj:5  
import org.rut.util.algorithm.support.HeapSort; +hiskV@v  
import org.rut.util.algorithm.support.ImprovedMergeSort; g_8A1lt  
import org.rut.util.algorithm.support.ImprovedQuickSort; qK=uSL o\+  
import org.rut.util.algorithm.support.InsertSort; 5ub|r0&M  
import org.rut.util.algorithm.support.MergeSort; V7~tIhuJH  
import org.rut.util.algorithm.support.QuickSort; =o_Ua^mr  
import org.rut.util.algorithm.support.SelectionSort; ;YGCsLT<xt  
import org.rut.util.algorithm.support.ShellSort; ^qR2!fwm<  
;-]' OiS;  
/** )SjhOvm  
* @author treeroot -2DvKW$  
* @since 2006-2-2 9Su4nt`i  
* @version 1.0 cpLlkR O  
*/ u([|^~H]  
public class SortUtil { tRC*@>I$  
public final static int INSERT = 1; Dt]N&E#\D  
public final static int BUBBLE = 2; 9Ub##5$[,  
public final static int SELECTION = 3; |J:|56kVZq  
public final static int SHELL = 4; -6KNMk   
public final static int QUICK = 5; M0) q  
public final static int IMPROVED_QUICK = 6; Po B-:G6  
public final static int MERGE = 7; ,y>Sq +  
public final static int IMPROVED_MERGE = 8; Z.QgL=  
public final static int HEAP = 9; r3;@  
:o"9x,  
public static void sort(int[] data) { mZG)#gW[  
sort(data, IMPROVED_QUICK); qp##>c31X  
} ;URvZ! {/Z  
private static String[] name={ #S4lRVt5  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" WWBm*?U  
}; HP,sNiw  
IoAG!cS  
private static Sort[] impl=new Sort[]{ #OMFv.  
new InsertSort(), F9}jiCom  
new BubbleSort(), -|.Izgc  
new SelectionSort(), n5qg6(Tl]  
new ShellSort(), XK+" x!   
new QuickSort(), Vd&&GI(:?^  
new ImprovedQuickSort(), Z~S%|{&Br  
new MergeSort(),  WPu-P  
new ImprovedMergeSort(), yw@kh^L  
new HeapSort() NNgpDL*  
}; * a ?qV  
|^09ny|  
public static String toString(int algorithm){ s;!_'1pi@  
return name[algorithm-1]; OL%KAEnD  
} fFe{oR   
(,`R>Dk  
public static void sort(int[] data, int algorithm) { d8!yV~Ka  
impl[algorithm-1].sort(data); $S6%a9m   
} gfr+`4H>v  
% S vfY{  
public static interface Sort { uyqu n@q  
public void sort(int[] data); (&osR|/Tq  
} zBjtPtiiI8  
7{ JIHY+  
public static void swap(int[] data, int i, int j) { >}7Ml  
int temp = data; p[^a4E_v  
data = data[j]; t@vVE{`  
data[j] = temp; Kg;u.4.-M  
} I%<LLkQ  
} l^k/Y ]  
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 或 注册
温馨提示:欢迎交流讨论,请勿纯表情、纯引用!
认证码:
验证问题:
10+5=?,请输入中文答案:十五