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
  • 9084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。 #]DZrD&q  
插入排序: 6Su@a%=j  
"5JNXo,H  
package org.rut.util.algorithm.support; h4\6h  
;Fem<p)V  
import org.rut.util.algorithm.SortUtil; 6Hbf9,vI  
/** `h9)`*  
* @author treeroot Gb|}Su  
* @since 2006-2-2 _<*GU@  
* @version 1.0 2 C]la  
*/ 7$'mC9  
public class InsertSort implements SortUtil.Sort{ SKpPR;=q|:  
$dp#nyP  
/* (non-Javadoc) 7(~H77  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) kTZx-7~  
*/ H'GYJ ?U"  
public void sort(int[] data) { km\ld&d]$  
int temp; .83v~{n  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); -y*_.Ws9  
} `$sY^EX  
} :-\ yy  
} %^5@z1d,  
)uid!d  
} {ogZT7w}  
n?LIphc\  
冒泡排序: =8~R $z%  
YqSXi~.  
package org.rut.util.algorithm.support; gGX0+L@E  
_/ }6  
import org.rut.util.algorithm.SortUtil; 1!(%<R  
uo4$rf7  
/** !UMo4}Y  
* @author treeroot &u1g7# #  
* @since 2006-2-2 V9E6W*IE  
* @version 1.0 Lkl|4L   
*/ h [IYA1/y  
public class BubbleSort implements SortUtil.Sort{ '#N5i  
#jLaIXms  
/* (non-Javadoc) _0W;)v  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) i ,IM?+4  
*/ p + l_MB  
public void sort(int[] data) { 3U~lI&  
int temp; J/x@$'  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ~` \9Q  
if(data[j] SortUtil.swap(data,j,j-1); xe6_RO%  
} E!I  
} zzfn0g  
} )jk1S  
} .FKJ yzL  
W>0"CUp  
} =`1m-   
-N7xO)  
选择排序: YXzZ-28,<  
(}C^_q:7d  
package org.rut.util.algorithm.support; $,;S\JmWP  
'>e79f-O)  
import org.rut.util.algorithm.SortUtil; P*SCHe'  
(H8C\%g:  
/** >nhE%:X>  
* @author treeroot #$t}T@t>  
* @since 2006-2-2 !b7'>b'J<1  
* @version 1.0 k%l_N)38  
*/ =F'M~3M   
public class SelectionSort implements SortUtil.Sort { f#v#)Gp+  
Jh\: X<q  
/* j6e}7  
* (non-Javadoc) 7rdw`  
* {x[;5TM  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) X7H'Uk9:  
*/ `8Jq~u6_Z  
public void sort(int[] data) { Vm~qk  
int temp; /esVuz  
for (int i = 0; i < data.length; i++) { >:jM}*dnL  
int lowIndex = i; -MrtliepW*  
for (int j = data.length - 1; j > i; j--) { E q=wdI  
if (data[j] < data[lowIndex]) { $7UoL,N>  
lowIndex = j; /bmXDDYH4  
} feI./E  
} |"R_-U  
SortUtil.swap(data,i,lowIndex); 3^\?>C7  
} hD_5~d  
} JY2/YDJ  
}Kj Ju;  
} n5v'  
lMC{SfdH  
Shell排序: cq,v1Y<  
382*  
package org.rut.util.algorithm.support; F!gNt<fZ  
Dn_"B0$lk  
import org.rut.util.algorithm.SortUtil; 2~!R*i  
R <;OEN  
/** x6^l6N  
* @author treeroot tlV &eN  
* @since 2006-2-2 Zk=*7?!!  
* @version 1.0 veUa|Bx.(v  
*/ J3e:Y!  
public class ShellSort implements SortUtil.Sort{ /2;dH]o0  
E dn[cH7  
/* (non-Javadoc) yB,{#nM>8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) FxCZRo&  
*/ 5LX8:~y  
public void sort(int[] data) { fB~O |g  
for(int i=data.length/2;i>2;i/=2){ ebN(05ZV  
for(int j=0;j insertSort(data,j,i); wjTNO0hj  
} :zdEq" )v  
} 2W^B{ZS;  
insertSort(data,0,1); HDmx@E.@  
} jzs.+dAg  
IKi{Xh]\  
/** 9u,8q:I.?  
* @param data G'f9N^w  
* @param j <4bz/^  
* @param i j8GY`f#  
*/ <S1??  
private void insertSort(int[] data, int start, int inc) { -<qxO  
int temp; :dP~.ZY7  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); SY-ez 91  
} i;o}o *=  
} I^~=,D  
} l|YT[LR7  
0K<x=-cCB  
} .,3Zj /  
^rv"o:lF  
快速排序: z % x7fe  
)K~w'TUr  
package org.rut.util.algorithm.support; .'|mY$U~]  
|3}5:k  
import org.rut.util.algorithm.SortUtil; g(/{.%\k  
Hjs }  
/** ;%' b;+  
* @author treeroot AZwl fdLB  
* @since 2006-2-2 @}<"N  
* @version 1.0 Q%ruQ#  
*/ vUNisVA  
public class QuickSort implements SortUtil.Sort{ 55.;+B5L *  
yN*:.al  
/* (non-Javadoc) o=pt_!i/  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d%0+i/p  
*/ <i{K7}':  
public void sort(int[] data) { .xO _E1Ku;  
quickSort(data,0,data.length-1); !;%y$$gxh  
} /XcDYMKgh  
private void quickSort(int[] data,int i,int j){ }A]BpSEP  
int pivotIndex=(i+j)/2; .~3kGf":  
file://swap CRFCqmevR  
SortUtil.swap(data,pivotIndex,j); '\`6ot8  
EYL]TeS  
int k=partition(data,i-1,j,data[j]); \PpXL*.  
SortUtil.swap(data,k,j); 7K&}C;+  
if((k-i)>1) quickSort(data,i,k-1); OL3UgepF  
if((j-k)>1) quickSort(data,k+1,j); /aZE,IeEz  
6*u,c^a  
} nH@(Y&S  
/** m0|K#^  
* @param data ?^ZXU0IkP  
* @param i jM~Bu.7 i6  
* @param j TyF{tuF  
* @return 2i\Q@h  
*/ fb .J$fX  
private int partition(int[] data, int l, int r,int pivot) { f/}  
do{ UVz/n68\k7  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 845 W>B  
SortUtil.swap(data,l,r); bd!U)b(}OV  
} Cq>6rn  
while(l SortUtil.swap(data,l,r); fN-Gk(Ic  
return l; -ynBi;nH  
} P;vxT}1  
e+'%!w"B  
} Z%}4bJ  
B0d%c&N${  
改进后的快速排序: $r\"6e  
<},1Ncl  
package org.rut.util.algorithm.support; brh=NAzt  
u$%A#L[  
import org.rut.util.algorithm.SortUtil; kneuV8+(5  
w u)Wg-dT  
/** i9rS6<V'  
* @author treeroot B8T\s)fxnX  
* @since 2006-2-2 +4et7  
* @version 1.0 %,\=s.~1  
*/ p3c"ZPO~z  
public class ImprovedQuickSort implements SortUtil.Sort { %r%So_^  
Qzqc .T  
private static int MAX_STACK_SIZE=4096; a+`D'?z  
private static int THRESHOLD=10; BkawL,  
/* (non-Javadoc) 3JO]f5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }aF  
*/ *5k+t  
public void sort(int[] data) { wv?RO*E  
int[] stack=new int[MAX_STACK_SIZE]; gAt~?HvW6  
h}Rx_d  
int top=-1; s~^}F+n  
int pivot; ~.^AL}zm_  
int pivotIndex,l,r; )I`if(fG  
rn8cdM N  
stack[++top]=0; k$N0lR4:p  
stack[++top]=data.length-1; 48O~Jx,  
h7]EB!D\A  
while(top>0){ ? }yfKU`  
int j=stack[top--]; ~S*b  
int i=stack[top--]; yb2}_k.JG  
bFY~oa%C  
pivotIndex=(i+j)/2; Fv8f+)k)Z~  
pivot=data[pivotIndex]; /7D<'MF  
,\YAnKn6_  
SortUtil.swap(data,pivotIndex,j); P(,?#+]-  
w##^}nHOR  
file://partition Qd]we$ G  
l=i-1; A#rh@8h+  
r=j; :ofBzTNwZ  
do{ ?A?F.n`  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 3BdX  
SortUtil.swap(data,l,r); 8w_7O> 9  
} <YB9Ac~}z  
while(l SortUtil.swap(data,l,r); (YPi&w~S  
SortUtil.swap(data,l,j); a~PK pw2%  
;f1qLI  
if((l-i)>THRESHOLD){ / vxm"CJR  
stack[++top]=i; os4{0Mxu  
stack[++top]=l-1; ml6u1+v5  
} Ag9?C*  
if((j-l)>THRESHOLD){ OGOND,/R?/  
stack[++top]=l+1; ]y#3@  
stack[++top]=j; _,haD)1g~  
} V`kMCE;?l  
-]srp;=i  
} ;"kaF!  
file://new InsertSort().sort(data); <lE?,jl  
insertSort(data); Z hd#:d  
} O hVs#^  
/** %Ip*Kq-  
* @param data GbI-SbE  
*/ H1/?+N}(  
private void insertSort(int[] data) { _%/}>L>-`8  
int temp; YJ_\Ns+Ow  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ^v&D;<&R  
} k&/OU:7Y  
} q{0R=jb  
} :|+Qe e  
?QZ"JX])  
} E&`Nh5JfC  
]e'fa/I  
归并排序: JH8}Ru%Z  
`R"~v/x  
package org.rut.util.algorithm.support; jYRP8 Yi  
:9|\Z|S(I  
import org.rut.util.algorithm.SortUtil; I%j_"r9-I  
PPkx4S_>  
/** =K\r-'V  
* @author treeroot ~PnTaAPJ  
* @since 2006-2-2 Fv74bC %  
* @version 1.0 =WIJ>#Go<  
*/ 1vzb8.  
public class MergeSort implements SortUtil.Sort{ X] %itA  
*v ?m6R=)h  
/* (non-Javadoc) n/~A`%E@  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) zCv"]%  
*/ #bH_Dg5I  
public void sort(int[] data) { C;+h.;}<D  
int[] temp=new int[data.length]; ?e[lr>-  
mergeSort(data,temp,0,data.length-1); 4_A0rveP  
} ,:LA.o}h  
I,yC D7l_  
private void mergeSort(int[] data,int[] temp,int l,int r){ !|ak^GE:(%  
int mid=(l+r)/2; 3ZEB  
if(l==r) return ; T*g:# ^4  
mergeSort(data,temp,l,mid); +N`ua  
mergeSort(data,temp,mid+1,r); 9h&R]yz;  
for(int i=l;i<=r;i++){ 9KWuN:Sg  
temp=data; ~6YMD  
} UT0){%2@  
int i1=l; [NMVoBvG  
int i2=mid+1; a.N{-2ptH  
for(int cur=l;cur<=r;cur++){ FMA6_fju4  
if(i1==mid+1) 7x);x/#8Z  
data[cur]=temp[i2++]; kF(n!2"W  
else if(i2>r) 7lV.[&aKW  
data[cur]=temp[i1++]; i4Lc$20?d  
else if(temp[i1] data[cur]=temp[i1++]; #7ohQrP  
else [e[<p\]  
data[cur]=temp[i2++]; I9h ?;(  
} $odso;Hn  
} LUB${0BrA  
Guz"wY  
} h2ytS^  
7f rTTSZ  
改进后的归并排序: %\]* OZ7  
) e5 @  
package org.rut.util.algorithm.support; wLK07e(  
(e(:P~Ry  
import org.rut.util.algorithm.SortUtil; A,sr[Pa@  
V|(H|9  
/** .<@8gNm3  
* @author treeroot #@<9S{F  
* @since 2006-2-2 kuyjnSo9i  
* @version 1.0 jC bV,0)^  
*/ _SW3_8SuM.  
public class ImprovedMergeSort implements SortUtil.Sort { BauU{:Sh  
C8 \5A8c  
private static final int THRESHOLD = 10; DL$@?.?I  
:#@= B]  
/* 7}M2bH} \K  
* (non-Javadoc) PDs@?nz,  
* $Y69@s%f  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;)N>t\v  
*/ '>r7V  
public void sort(int[] data) { EoK~S\dS  
int[] temp=new int[data.length]; 94B\5I}  
mergeSort(data,temp,0,data.length-1); hzkcP  
} 'yMF~r3J  
yKO`rtP  
private void mergeSort(int[] data, int[] temp, int l, int r) { +$g}4  
int i, j, k; <HbcNE~  
int mid = (l + r) / 2; ``wSc0\  
if (l == r) u~A6bK*  
return; ,l<6GB2\  
if ((mid - l) >= THRESHOLD) uEX!xx?Q#  
mergeSort(data, temp, l, mid); JvY}-}?c  
else H$y-8-&)  
insertSort(data, l, mid - l + 1); 0`^&9nR  
if ((r - mid) > THRESHOLD) yUpgoX(6  
mergeSort(data, temp, mid + 1, r); FCnm1x#  
else H1} RWaJ  
insertSort(data, mid + 1, r - mid); #O+),,WS  
)c `7( nY  
for (i = l; i <= mid; i++) { C=eF.FB;'  
temp = data; yu;P +G  
} Hy^N!rBxfO  
for (j = 1; j <= r - mid; j++) {  4^M  
temp[r - j + 1] = data[j + mid]; gLOEh6  
} AvfNwE  
int a = temp[l]; y&V@^ "`  
int b = temp[r]; 9I4K}R  
for (i = l, j = r, k = l; k <= r; k++) { rk #sy$  
if (a < b) { ax(c#  
data[k] = temp[i++]; V#iPj'*   
a = temp; V,%=AR5  
} else { S:O O0<W  
data[k] = temp[j--]; xL\0B,]  
b = temp[j]; thI F&  
} >r !|sC  
} $m/)FnU/  
} ZjF 4v  
oz,e/v8~  
/** s,]z[qB#$  
* @param data zx)z/1  
* @param l +mn ,F};  
* @param i Le\?+h42>  
*/ HhvdqvIEG  
private void insertSort(int[] data, int start, int len) { x^y'P<ypw  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); y!_C/!d  
} -4 SY=NC_  
} @0/+_2MH-  
} PK`D8)=u  
} t+!$[K0/  
JsODzw  
堆排序: ^zQ/mo,Z  
`Tv[DIVW  
package org.rut.util.algorithm.support; a6uJYhS~  
|>dI/_'  
import org.rut.util.algorithm.SortUtil; =w{Z@S(ukz  
?`PvL!'  
/** lE4HM$p   
* @author treeroot _sTROd)Vh  
* @since 2006-2-2 =`H@%  
* @version 1.0 'F9jq  
*/ tM'P m   
public class HeapSort implements SortUtil.Sort{ ,,q10iF  
9-fLz?J  
/* (non-Javadoc) Xg;}R:g '  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }khV'6"'|  
*/ ~ v|>xqWV  
public void sort(int[] data) {  2*^j  
MaxHeap h=new MaxHeap(); xD~5UER  
h.init(data); DK: o]~n  
for(int i=0;i h.remove(); q1d}{DU  
System.arraycopy(h.queue,1,data,0,data.length); [J?aD`{#O  
} F^];U+J  
<+?7H\b  
private static class MaxHeap{ mc? Vq  
;'#8tGv=  
void init(int[] data){ woGAf)vV#  
this.queue=new int[data.length+1]; 0"28'  
for(int i=0;i queue[++size]=data; 9 a!$z!.  
fixUp(size); x"~8*V'0  
} .uMn0PE   
} o<pf#tifv  
 +|n*b  
private int size=0; z`f($t[  
l)1r+@) \  
private int[] queue; /rnu<Q#iH  
f'EuY17w  
public int get() { l 3ko?k  
return queue[1]; -z)n?(pftm  
} Z8K?  
42$VhdG  
public void remove() { Ch <[l8;K  
SortUtil.swap(queue,1,size--); "&G/T ?4  
fixDown(1); Ku5\]  
} ,9zjFI  
file://fixdown #P0&ewy  
private void fixDown(int k) { Whm,F^  
int j; ) l:[^$=,  
while ((j = k << 1) <= size) { iJ1"at  
if (j < size %26amp;%26amp; queue[j] j++; 3TeY%5iVt  
if (queue[k]>queue[j]) file://不用交换 O;:mCt _H  
break; (MxQ+D\  
SortUtil.swap(queue,j,k); MOQ*]fV:  
k = j; v$?+MNks  
} | *2w5iR  
} "n(hfz0y%  
private void fixUp(int k) { $P/~rZ@M@  
while (k > 1) { Vc\MV0lr  
int j = k >> 1; rWa2pO  
if (queue[j]>queue[k]) W$hx,VEy`  
break; Yg%I?  
SortUtil.swap(queue,j,k); v&DI`xn~  
k = j; w0rRSD4S8B  
} V5V bJBpf  
} /Kql>$I  
h-q3U%R4}@  
} [9evz}X  
fI?>+I5  
} C~,a!qY  
EE&K0<?T|:  
SortUtil: 1"MhGNynB>  
riY~%9iV'  
package org.rut.util.algorithm; {FeDvhv  
t5\-v_mG=&  
import org.rut.util.algorithm.support.BubbleSort; Cjm`|~&e+  
import org.rut.util.algorithm.support.HeapSort; .o(fe\KHf  
import org.rut.util.algorithm.support.ImprovedMergeSort; &Cr:6W@A  
import org.rut.util.algorithm.support.ImprovedQuickSort; _n0CfH.v  
import org.rut.util.algorithm.support.InsertSort; }~e8e   
import org.rut.util.algorithm.support.MergeSort; ,<(}|go   
import org.rut.util.algorithm.support.QuickSort; :}'=`wa  
import org.rut.util.algorithm.support.SelectionSort; >%}C^gu)  
import org.rut.util.algorithm.support.ShellSort; 6m* QX+  
]b2pG'  
/** ^a0um/+M}  
* @author treeroot EN<F# Y3E  
* @since 2006-2-2 JVvs-bK5  
* @version 1.0 Ns>- o  
*/ +~m46eI  
public class SortUtil { N)uSG&S:  
public final static int INSERT = 1; 6Zm# bFQ  
public final static int BUBBLE = 2; q;T{|5/O  
public final static int SELECTION = 3; s4X>.ToMC  
public final static int SHELL = 4; k:t ]s_`<  
public final static int QUICK = 5; e'6/` Evqz  
public final static int IMPROVED_QUICK = 6; aH)}/n  
public final static int MERGE = 7; Hq'`8f8N  
public final static int IMPROVED_MERGE = 8; PxWT1 !  
public final static int HEAP = 9; e24WW^S  
o[Q MTP  
public static void sort(int[] data) { (y=C_wvqZ  
sort(data, IMPROVED_QUICK); 3 oF45`3FV  
} BTqS'NuT  
private static String[] name={ ! `   
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ] {RDVA=]  
}; ;w{tv($$  
T"{>t  
private static Sort[] impl=new Sort[]{ S'Q@ScJ  
new InsertSort(), SD"FErJ  
new BubbleSort(), &FMc?wq  
new SelectionSort(), QO<jI#  
new ShellSort(), ` 06;   
new QuickSort(), jl4rbzse  
new ImprovedQuickSort(), K -nF lPm\  
new MergeSort(), 2J7:\pR^  
new ImprovedMergeSort(), d[@X%  
new HeapSort() {j.bC@hWw  
}; Ec3}_`  
|7'df&CA  
public static String toString(int algorithm){ *v;2PP[^  
return name[algorithm-1]; CM/H9Kz.  
} $O&b``  
9&-dTayIz  
public static void sort(int[] data, int algorithm) { Sq>dt[7  
impl[algorithm-1].sort(data); cvn@/qBq*t  
} "%`1 ]Fr  
dU&a{ $ku[  
public static interface Sort { <Th6r.#?  
public void sort(int[] data); yZ0-wI  
} g!g#]9j  
,?J!  
public static void swap(int[] data, int i, int j) { |^&b8  
int temp = data; ?&8^&brwG  
data = data[j]; {fPy=,>Nb  
data[j] = temp; f(>p=%=O  
} J{.{f  
} 0.`/X66;V  
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
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