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
  • 6760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。 O+?vQ$z  
插入排序: hkB|rhJgm  
0!b9%I=j  
package org.rut.util.algorithm.support; (h|E@gRa  
^GS\(egt  
import org.rut.util.algorithm.SortUtil; \<HY'[gr  
/**  5]*!N  
* @author treeroot KPAvNM  
* @since 2006-2-2 sDB,+1"Y$  
* @version 1.0 v?YxF}  
*/ |=:<[FU  
public class InsertSort implements SortUtil.Sort{ 9&bJ]  
C~IE_E&Q`  
/* (non-Javadoc) NM"5.   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) s6QD^[  
*/ P*]hXm85[K  
public void sort(int[] data) { A">R-1R  
int temp; P]O=K  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); &I:ZJuQ4  
} `B~zB=}  
} Ig<# {V  
} CK#i 6!~r  
dJe 3DW :  
} Oye6IT"  
$)eS Gslz  
冒泡排序: @*roW{?!  
U4[GA4DZ   
package org.rut.util.algorithm.support; 2wJa:=$  
#5=W[+4eN  
import org.rut.util.algorithm.SortUtil; CFUn1^?0  
[1mEdtqf*  
/** V`8\)FFG  
* @author treeroot c#f@v45  
* @since 2006-2-2 x!6<7s  
* @version 1.0 vY7 @1_"  
*/ X}wo$t  
public class BubbleSort implements SortUtil.Sort{ 4y.qtiIP>$  
p=m:^9/  
/* (non-Javadoc) !4T!@"#  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) m8V}E& 6  
*/ Q_Wg4n5  
public void sort(int[] data) { `2/V.REX$h  
int temp; yJ="dEn>i"  
for(int i=0;i for(int j=data.length-1;j>i;j--){ dZox;_b  
if(data[j] SortUtil.swap(data,j,j-1); {:|b,ep T  
} TPs ]n7]:  
} 1aZGt2;  
} D"2bgw  
} w"37sv  
((&5F!+\-  
} CDPu(,^  
+i#s |kKs\  
选择排序: }>EWF E`  
H:P7G_!\  
package org.rut.util.algorithm.support; K)  Ums-b  
qi ">AQpp  
import org.rut.util.algorithm.SortUtil; e<qfM&*  
Ldj*{t `5  
/** xS:n  
* @author treeroot 0cDP:EzR;  
* @since 2006-2-2 RL )~J4Y  
* @version 1.0 8rjD1<  
*/ tyWDa$u,u  
public class SelectionSort implements SortUtil.Sort {  d0i|^  
lwz\" 8  
/* a;v4R[lQ  
* (non-Javadoc) F+ 7*SImv6  
* +&dkJ 4g[  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h?H|)a<^9  
*/ $wn0oIuW  
public void sort(int[] data) { [k0/ZfFwV  
int temp; vvu $8n  
for (int i = 0; i < data.length; i++) { M ziOpraj  
int lowIndex = i; f-634KuP  
for (int j = data.length - 1; j > i; j--) { >FKwFwT4D  
if (data[j] < data[lowIndex]) { 80`$F{xcX  
lowIndex = j; $}'(%\7"  
} Zu<S<??Jf  
} -w>ss&  
SortUtil.swap(data,i,lowIndex); d"n"A?nXh  
} (tX)r4VU  
} J7qTE8W=  
:wN !E{0j  
} 1Vx5tOq  
D1 $ER>  
Shell排序: ~L>86/hP,N  
0m=57c$O  
package org.rut.util.algorithm.support; n @,.  
CxN xb)c &  
import org.rut.util.algorithm.SortUtil; 4UUbX  
#a2gRg  
/** ($>m]|  
* @author treeroot ->X>h_k.Y  
* @since 2006-2-2 \*Yr&Lm  
* @version 1.0 lD, ~%  
*/ "vT$?IoEV  
public class ShellSort implements SortUtil.Sort{ ?D6|~k i  
^ g|VZN  
/* (non-Javadoc) 6B%  h  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !A1~{G2VL_  
*/ ? |#dGk g  
public void sort(int[] data) { *G7cF  
for(int i=data.length/2;i>2;i/=2){ P -nhG  
for(int j=0;j insertSort(data,j,i); 0\vG <  
} QxN1N^a0  
} U$<" . q  
insertSort(data,0,1); &r~s3S{pQ  
} QQ_7Q^  
2P)O 0j\/  
/** `uUzBV.FR  
* @param data rmo\UCD  
* @param j dGi HO  
* @param i 5&h">_j  
*/ "DA%vdu  
private void insertSort(int[] data, int start, int inc) { 6}?d%K  
int temp; G~v:@  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ~;a \S3  
} \gB ~0@[\7  
} #r]Z2Y]  
} .)_2AoT7[  
~#jiX6<I  
} 7Xu#|k  
zA8@'`Id  
快速排序: wpN3-D  
fISK3t/=C  
package org.rut.util.algorithm.support; _ilitwRN3  
UAT\ .  
import org.rut.util.algorithm.SortUtil; 9cUa@;*1  
1YJ?Y  
/** biU_ImJ>0  
* @author treeroot |Tc4a4jS  
* @since 2006-2-2 zL9~gJ  
* @version 1.0 $+_1F`  
*/ fK+ 5   
public class QuickSort implements SortUtil.Sort{ pjX=:K|  
KYtCN+vsG  
/* (non-Javadoc) -4sKB>b  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <R;wa@a>  
*/ M?UUT8,  
public void sort(int[] data) { 6% ofS8 [  
quickSort(data,0,data.length-1); $Seh4  
} @+H0D"  
private void quickSort(int[] data,int i,int j){ l EzN   
int pivotIndex=(i+j)/2; zfv@<'  
file://swap H@Ot77(*  
SortUtil.swap(data,pivotIndex,j); fn=A_ i  
,LN^Zx*  
int k=partition(data,i-1,j,data[j]); VQ| {Q}  
SortUtil.swap(data,k,j); d+,!p8Q  
if((k-i)>1) quickSort(data,i,k-1); ;nP(S`'  
if((j-k)>1) quickSort(data,k+1,j); 5cinI^x)f  
M TZCI}  
} Z#-N$%^F  
/** kx?Yin8K  
* @param data MO0NNVVi%U  
* @param i Y`(Ri-U4  
* @param j u*;H$&  
* @return Wm`*IBWA  
*/ p\&/m  
private int partition(int[] data, int l, int r,int pivot) { !?0C(VL(:  
do{ ;'8Wl  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); N+B!AK0.  
SortUtil.swap(data,l,r); 'JJKnE zQ  
} ~{tO8 ]  
while(l SortUtil.swap(data,l,r); |xcC'1WU  
return l; sdg2^]|  
} #gO[di0WhC  
c/A?-9  
} 05T?c{ ;  
q,@# cQBV  
改进后的快速排序: h!%y,4IBR  
m2jts(stp  
package org.rut.util.algorithm.support; 6bhb_U'f  
R|M]mwa^w  
import org.rut.util.algorithm.SortUtil; n}IGxum8`  
xZ P SUEG  
/** qb=2J5su  
* @author treeroot &BrFcXF  
* @since 2006-2-2 L r"cO|F  
* @version 1.0 Ht(TYq  
*/ )Bn }|6`  
public class ImprovedQuickSort implements SortUtil.Sort { k}H7bZug  
aH?Ygzw  
private static int MAX_STACK_SIZE=4096; <_<zrXc]  
private static int THRESHOLD=10; g"5Kth  
/* (non-Javadoc)  P>iZ gv  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) v0oVbHO5<  
*/ ' QG`^@Z  
public void sort(int[] data) { W1X3ArP]m8  
int[] stack=new int[MAX_STACK_SIZE]; Ovk=s,a)K  
BLt58LYGX  
int top=-1; qX5>[qf-  
int pivot; [YULvWAJ  
int pivotIndex,l,r; H Eq{TUTr  
QJ;dw8  
stack[++top]=0; 1g{}O^ul  
stack[++top]=data.length-1; C 8wGbU6`  
vw;a L#PP  
while(top>0){ c,.@Cc2  
int j=stack[top--]; 03v+eT  
int i=stack[top--]; j;@a~bks6z  
heou\;GI"  
pivotIndex=(i+j)/2; +5*bU1}O  
pivot=data[pivotIndex]; fEXFnQ#  
xw}yl4WT{  
SortUtil.swap(data,pivotIndex,j); Y Z+G7D>  
AZc= Bbh  
file://partition trwQ@7  
l=i-1; ;!S5P(  
r=j; #0b:5.vy  
do{ X/2GTU7?  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); <hCO-r#  
SortUtil.swap(data,l,r); n]$rLm%^  
} VtI`Qc jc  
while(l SortUtil.swap(data,l,r); [(x*!,=  
SortUtil.swap(data,l,j); 4h|*r !  
g]: [^p  
if((l-i)>THRESHOLD){ hQ<7k'V  
stack[++top]=i; =bC'>qw}  
stack[++top]=l-1; /7#e  
} ]VKQm(,0  
if((j-l)>THRESHOLD){ uc@4fn  
stack[++top]=l+1; ^.8~}TT-U  
stack[++top]=j; A1+:y,wXs  
} A(E}2iP9=  
jOzXyDq  
} L5I!YP#v  
file://new InsertSort().sort(data); ;K\2/"$QD  
insertSort(data); 4%~*}  
} UMRFTwY  
/** 7yyX8p>  
* @param data D tZ?sG  
*/ f^1J_}cL  
private void insertSort(int[] data) { T(x@ gwc  
int temp; L5x;# \#p  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); WyatHC   
} ?K7uy5Y  
} r6uN6XCM  
} u:|^L]{  
XyN " Jr  
} $+GDPYm'  
u*2?Gky  
归并排序: zO"De~[9  
v(yJGEf0  
package org.rut.util.algorithm.support; "JSIn"/  
,M{G X  
import org.rut.util.algorithm.SortUtil; H%Gz"  
. KLEx]f.  
/** rN|=cn  
* @author treeroot p =nbsS~":  
* @since 2006-2-2 5Z_C (5)/Y  
* @version 1.0 zTB&Wlt  
*/ u>9` ?O44  
public class MergeSort implements SortUtil.Sort{ Vu.=,G  
vq(#Ih2  
/* (non-Javadoc) L#K`F8Wi=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <">epbV6  
*/ C3W4:kbau  
public void sort(int[] data) { yYJ_;Va  
int[] temp=new int[data.length]; M;y*`<x  
mergeSort(data,temp,0,data.length-1); zJy=1r  
} YdO*5Gb6  
tWy.Gz\  
private void mergeSort(int[] data,int[] temp,int l,int r){ pt.V^a  
int mid=(l+r)/2; [nig^8  
if(l==r) return ; ?} 8r h%  
mergeSort(data,temp,l,mid); Jg=!GU/::  
mergeSort(data,temp,mid+1,r); "!zJQl@  
for(int i=l;i<=r;i++){ [yN+(^ i  
temp=data; ./XX  
} SZe55mK`  
int i1=l; wl]3g  
int i2=mid+1; _"Bj`5S  
for(int cur=l;cur<=r;cur++){ M#o.O?.`  
if(i1==mid+1) nQOdM#dP  
data[cur]=temp[i2++]; I?g}q,!]  
else if(i2>r) IXtG 36O  
data[cur]=temp[i1++]; 8Y`g$2SZ^8  
else if(temp[i1] data[cur]=temp[i1++]; .kU^)H" l  
else $|g1 _;(G  
data[cur]=temp[i2++]; ~) _Nh  
} f:+/= MW  
} }#D=Rf?2\P  
7s6+I_n  
} b)'CP Cu*  
eg/itty  
改进后的归并排序: ].xSX0YQ%  
@;OsHudd  
package org.rut.util.algorithm.support; o]&q'>Rf  
/jJD {  
import org.rut.util.algorithm.SortUtil; *]U`]!Esp  
N\__a~'0p  
/** %r1#G.2YW  
* @author treeroot &,G2<2_b  
* @since 2006-2-2 ZH\t0YhrVe  
* @version 1.0 (4 ZeyG@  
*/ :lo5,B;k  
public class ImprovedMergeSort implements SortUtil.Sort { lFt!  
xk~gGT&  
private static final int THRESHOLD = 10; }p6]az3  
o%~fJx:]y  
/* 8WQ#)  
* (non-Javadoc) #[9UCX^=  
* lfDd%.:q4S  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _1E c54D  
*/ F_:zR,P%#  
public void sort(int[] data) { X,VI5$  
int[] temp=new int[data.length]; (n7xYGfYS  
mergeSort(data,temp,0,data.length-1); 8%B_nVc  
} 9R8q+2  
btEyvqs~X  
private void mergeSort(int[] data, int[] temp, int l, int r) { D^O[_/i&  
int i, j, k; %" bI2  
int mid = (l + r) / 2; &2u |7U.  
if (l == r) b 3Q6-  
return; 2{=D)aC$f  
if ((mid - l) >= THRESHOLD) B1|nT?}J(  
mergeSort(data, temp, l, mid); xK_UkB-$i  
else ;6PU  
insertSort(data, l, mid - l + 1); VI4mEq,V  
if ((r - mid) > THRESHOLD) 95#]6*#[4!  
mergeSort(data, temp, mid + 1, r); J8S$YRZ_  
else T2Z$*;,>T  
insertSort(data, mid + 1, r - mid); neM)(` gp  
G 0pq'7B  
for (i = l; i <= mid; i++) { :Y/aT[  
temp = data; 3>VL>;75[  
} q]: 72+  
for (j = 1; j <= r - mid; j++) { K!CVS7  
temp[r - j + 1] = data[j + mid]; 5B:"$vC{=  
} QEqYqAGzu|  
int a = temp[l]; Mu`_^gG  
int b = temp[r]; TM6wjHFm  
for (i = l, j = r, k = l; k <= r; k++) { 3_  J'+  
if (a < b) { p35)K5V  
data[k] = temp[i++]; h?dSn:Y\?  
a = temp; heIys.p  
} else { D+uo gRS61  
data[k] = temp[j--]; v[uVAbfQ  
b = temp[j]; V.`hk^V,  
} J&\Q3_vro9  
} \wz^Z{U  
} IQ\!wWKmY  
&_Cc  
/** ib(|}7Je  
* @param data bgE]Wk0  
* @param l I>.pkf<V  
* @param i Td|,3 n  
*/ BEb?jRMjLg  
private void insertSort(int[] data, int start, int len) { Xxh^4vKjX  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 2H$](k?   
} ru`7iqcz  
} DDmC3  
} d4IQ;u  
} axC{azo|  
hJ8&OCR }  
堆排序: 7hn[i,?` H  
7#"NKxb  
package org.rut.util.algorithm.support; :|5 m"X\  
)R `d x  
import org.rut.util.algorithm.SortUtil; 83vZRQw  
.CEC g*f  
/** I_f%%N%  
* @author treeroot Zex~ $r  
* @since 2006-2-2 cG0)F%?X?  
* @version 1.0 ^NU_Tp:2^  
*/ \,NT5>  
public class HeapSort implements SortUtil.Sort{ ]p+KN>1e  
k8ILo)  
/* (non-Javadoc) 4S 4MQ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Nk -xnTZ"  
*/ 8 t=H  
public void sort(int[] data) { yj_/:eX  
MaxHeap h=new MaxHeap(); ]vcT2lr]  
h.init(data); m $[:J  
for(int i=0;i h.remove(); ? 3DFm  
System.arraycopy(h.queue,1,data,0,data.length); 5u9lKno  
} c(Y~5A{TXO  
m %+'St|qr  
private static class MaxHeap{ qh>An;:u  
j^#\km B  
void init(int[] data){ +/$&P3  
this.queue=new int[data.length+1]; ^-?^iWQ G  
for(int i=0;i queue[++size]=data; (BH<\&yHE  
fixUp(size); n+=7u[AZi  
} ).,twf58  
} vh2/d.MO  
tlO=>  
private int size=0; [4qvQ7Y !  
5D/Td#T04  
private int[] queue; ;ja~Q .}4  
oD2! [&  
public int get() { ? XVE {N  
return queue[1]; bh8GP]*E|  
} `Qb!W45  
)2EvZn  
public void remove() { ;/Y#ph[  
SortUtil.swap(queue,1,size--); kygj" @EX  
fixDown(1); T@vE@D  
} a m5;B`}q  
file://fixdown R7:u 8-dU1  
private void fixDown(int k) { ~,s'-  
int j; _0naqa!JyH  
while ((j = k << 1) <= size) { aC9iNm8w  
if (j < size %26amp;%26amp; queue[j] j++; *cFGDQ !  
if (queue[k]>queue[j]) file://不用交换 P)y2'JKL  
break; ql.[Uq  
SortUtil.swap(queue,j,k); u7J:ipyiq2  
k = j; (oiQ5s^f  
} '#A_KHD  
} 9BOn8p;yz  
private void fixUp(int k) { p79QEIbk=  
while (k > 1) { (@T{ [\  
int j = k >> 1; 5R.jhYAj  
if (queue[j]>queue[k]) #%GBopv  
break; kQ\l7xd  
SortUtil.swap(queue,j,k); e 0$m<5  
k = j; !2B~.!&   
} hb1h .F  
} [Ti ' X#  
3k_\ xQ  
} v^/<2/E"?4  
Z 5 .cfI[  
} D)L~vA/8b  
}n^}%GB  
SortUtil: _,F\%}  
MftaT5  
package org.rut.util.algorithm; S~z$ =IiB  
'YN:cr,V  
import org.rut.util.algorithm.support.BubbleSort; fUq}dAs*K  
import org.rut.util.algorithm.support.HeapSort; RigS1A\2l  
import org.rut.util.algorithm.support.ImprovedMergeSort; h+q#|N  
import org.rut.util.algorithm.support.ImprovedQuickSort; _^eA1}3  
import org.rut.util.algorithm.support.InsertSort; PCDvEbpG  
import org.rut.util.algorithm.support.MergeSort; 'q/C: Yo  
import org.rut.util.algorithm.support.QuickSort; w5-^Py  
import org.rut.util.algorithm.support.SelectionSort; ~ c~j  
import org.rut.util.algorithm.support.ShellSort; |d42?7}  
Kzt:rhiB  
/** rmX5-k  
* @author treeroot FbdC3G|oA  
* @since 2006-2-2 C_[ d  
* @version 1.0 ?<0'h{zNy  
*/ |tY6+T}  
public class SortUtil { S:2 xm8 i  
public final static int INSERT = 1; H`3w=T+I  
public final static int BUBBLE = 2; <VN< ~sz  
public final static int SELECTION = 3; DB jUHirK  
public final static int SHELL = 4; Q[`2? j?  
public final static int QUICK = 5; .Xxxz Wyk  
public final static int IMPROVED_QUICK = 6; "AWk jdj  
public final static int MERGE = 7; K;`*n7=IA  
public final static int IMPROVED_MERGE = 8; 1-4[w *u>  
public final static int HEAP = 9; a(JtGjTf&  
y </i1qM  
public static void sort(int[] data) { CpgaQG^  
sort(data, IMPROVED_QUICK); Ym]rG 4  
} 4Im}!q5;:<  
private static String[] name={ E[CvxVCx  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" Vhm^<I-d  
}; )5<dmK@  
V z5<Gr  
private static Sort[] impl=new Sort[]{ DAN"&&  
new InsertSort(), u0uz~ s  
new BubbleSort(), b?9'-hK<  
new SelectionSort(), (d <pxx  
new ShellSort(), -%VFC^'5  
new QuickSort(), k]TJL9Q  
new ImprovedQuickSort(), tJGPkeA  
new MergeSort(), N7s9"i  
new ImprovedMergeSort(), k[1[Y{n.  
new HeapSort() zb9vUxN [  
}; k'[\r>T  
hB:+_[=Kj.  
public static String toString(int algorithm){ K^I$05idi  
return name[algorithm-1]; )gR3S%Ju  
} dt>!=<|k  
Z%-uyT@a  
public static void sort(int[] data, int algorithm) { ,*p(q/kJh~  
impl[algorithm-1].sort(data); !<-+}X+o8$  
} x||b :2  
lnxA/[`a  
public static interface Sort { Oo\~' I  
public void sort(int[] data); $i `@0+:  
} 2[Qzx%Vp  
F<6{$YI  
public static void swap(int[] data, int i, int j) { (ubK i[)  
int temp = data; A_6Dol=J@  
data = data[j]; /#xYy^`  
data[j] = temp; lFgE{; z@  
} .9!&x0;  
} *EtC4sP  
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
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