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
  • 7835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。 WV2~(/hX&  
插入排序: 66 N)  
YwXXXh  
package org.rut.util.algorithm.support; N#UXP5C(  
EMh r6</  
import org.rut.util.algorithm.SortUtil;  \dTQQ  
/** awFhz 6   
* @author treeroot iD<6t_8),  
* @since 2006-2-2 R4SxFp  
* @version 1.0 -AC`q/bCD  
*/ SF^x=[ir  
public class InsertSort implements SortUtil.Sort{ AFm,CINa  
T/5"}P`  
/* (non-Javadoc) {y b D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *> KHRR<N  
*/ U{}!y3[wK  
public void sort(int[] data) { Af9+HI O  
int temp; "J !}3)n  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); yb?{LL-uy  
} ]\BUoQ7I/  
} a.DX%C /5  
} [sj VRW-  
(zC   
} /l6\^Xf{  
H|`R4hAk  
冒泡排序: FCiq?@  
~:EW>Fq%i  
package org.rut.util.algorithm.support; !}5*?k g  
bDWeU}  
import org.rut.util.algorithm.SortUtil; /$:U$JVb?l  
jTfi@5aPY  
/** o%`npi1y  
* @author treeroot ik5|,#}m&  
* @since 2006-2-2 LwOJ |jA(,  
* @version 1.0 > :Ze4}(  
*/ i3PKqlp.  
public class BubbleSort implements SortUtil.Sort{ 2tf6GX:  
xnbsg!`;7W  
/* (non-Javadoc) N _G4_12(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) e:OyjG5_  
*/ 6/6Rah!  
public void sort(int[] data) { *b"CPg/\  
int temp; ;'HF'Z  
for(int i=0;i for(int j=data.length-1;j>i;j--){ !5UfWk\G  
if(data[j] SortUtil.swap(data,j,j-1); nJT4w|Yx  
} <uD qYT$6  
} =VSkl;(O  
} 2]2H++  
} rl?7W];  
gvyT-XI  
} 0^#DNq*NQ  
p7C!G1+z  
选择排序: CCqT tp  
WeC(w+}p  
package org.rut.util.algorithm.support; /\J|Uj  
I60DUuF  
import org.rut.util.algorithm.SortUtil; Z^# ]#f  
^VI,C|  
/** XlkGjjW#/J  
* @author treeroot ooE{V*Ie  
* @since 2006-2-2 .N"~zOV<#  
* @version 1.0  AmcC:5  
*/ iF9_b  
public class SelectionSort implements SortUtil.Sort { zZ=$O-&%  
f^9&WT  
/* PZ,z15PG]  
* (non-Javadoc) >uy%-aXiVa  
* P`TIaP9%E  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +xj "hX>3  
*/ IgM v =^U  
public void sort(int[] data) { yC !/PQ"  
int temp; -$YJfQE6G  
for (int i = 0; i < data.length; i++) { XmWlv{T+  
int lowIndex = i; S|K}k:v8  
for (int j = data.length - 1; j > i; j--) { A#DR9Eq  
if (data[j] < data[lowIndex]) { %0XvJF)s  
lowIndex = j; S LGW:  
} ?`AGF%zp  
} _%ZP{5D>  
SortUtil.swap(data,i,lowIndex); M35Ax],:^  
} rLF*DB3l  
} B~TN/sd  
]sj0~DI*m  
} }c|UX ZW  
JsQ6l%9  
Shell排序: n?E}b$6  
v01#>,R  
package org.rut.util.algorithm.support; >I<PO.c!  
S " pI  
import org.rut.util.algorithm.SortUtil; it1/3y =]  
4# )6.f~  
/** m 22wF>9  
* @author treeroot *YvRNHP  
* @since 2006-2-2 #ia;- 3  
* @version 1.0 [e e30ELn  
*/ Gv~p  
public class ShellSort implements SortUtil.Sort{ K+),?Q ?.p  
w>979g  
/* (non-Javadoc) 2]ti!<  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7SS07$B  
*/ $j*Qo/x d  
public void sort(int[] data) { tcL2J.  
for(int i=data.length/2;i>2;i/=2){ `fS^ j-_M  
for(int j=0;j insertSort(data,j,i); *<9$D  
} C2/}d? bki  
} ,]$A\+m'  
insertSort(data,0,1); |y1;&<  
} !ALZBB.r(  
I>"Ci(N  
/** jv&+<j`r  
* @param data +jV_Wz  
* @param j $YM_G=k  
* @param i c K<)$*  
*/ 3!#/k+,C  
private void insertSort(int[] data, int start, int inc) { %Fft R1"  
int temp; oNYZIk:  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); !O)qYmK]|  
} $[(d X!]F  
} ?<~WO?  
} p^X^1X7  
AHd-  
} Tr.hmGU  
3 ^}A %-bS  
快速排序: CqoG.1jJS  
d2jr8U  
package org.rut.util.algorithm.support; ]gP5f@`  
Zb(t3I>n  
import org.rut.util.algorithm.SortUtil; O<N#M{kc.  
`W5-.Tv  
/** YfDWM7x7,  
* @author treeroot ja T$gAx  
* @since 2006-2-2 vsMmCd)7U  
* @version 1.0 =m tY  
*/ I%;Jpe  
public class QuickSort implements SortUtil.Sort{ <z0WLw0'z  
q7Es$zjX  
/* (non-Javadoc) )K0i@hM(n  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nWaNT-  
*/ gH7z  
public void sort(int[] data) { APSgnf  
quickSort(data,0,data.length-1); b?VV'{4  
} H3O@9YU  
private void quickSort(int[] data,int i,int j){ dULS^i@@  
int pivotIndex=(i+j)/2; q |dH~BK  
file://swap .<&s%{EW  
SortUtil.swap(data,pivotIndex,j); ' Q7Y-V  
-x]`DQUg  
int k=partition(data,i-1,j,data[j]); 9-lEtl%  
SortUtil.swap(data,k,j); 0Y?H0  
if((k-i)>1) quickSort(data,i,k-1); T>d.#  
if((j-k)>1) quickSort(data,k+1,j); 1FERmf? ?d  
o0I9M?lP  
} I:=dG[\h2  
/** c:\shAM&  
* @param data 2 y8~#*O  
* @param i xeA#u J  
* @param j #kcSQ'  
* @return H^AE|U*-G  
*/ WES#ZYtT  
private int partition(int[] data, int l, int r,int pivot) { !1Y&Y@ze  
do{ j8$Zv%Ca%  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 8]"(!i_;)  
SortUtil.swap(data,l,r); p EusTP  
} Q*ju sm  
while(l SortUtil.swap(data,l,r); 9 [Y-M  
return l; C"eXs#A  
} QMp r v*i  
]r/^9XaqtA  
} p]&j;H.  
wij,N(,H  
改进后的快速排序: GjT#%GBF  
GDhM<bVqM*  
package org.rut.util.algorithm.support; elO<a]hX  
Z" v<0]rN  
import org.rut.util.algorithm.SortUtil; ,.mBJ SE3  
!@L=;1,  
/** 8OFj0S1r`  
* @author treeroot ukAKFc^)k  
* @since 2006-2-2 o(G"k  
* @version 1.0 < n?=|g  
*/ cy3Td28,  
public class ImprovedQuickSort implements SortUtil.Sort { EbK0j?  
&t}?2>:  
private static int MAX_STACK_SIZE=4096; \~DM   
private static int THRESHOLD=10; gPXa>C  
/* (non-Javadoc) 2U$"=:Cf  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k&6I f0i  
*/ 2}WDw>V  
public void sort(int[] data) { {ERMGd6Jp  
int[] stack=new int[MAX_STACK_SIZE]; B#l?IB~  
!{UTD+|=N  
int top=-1; ~(X(&  
int pivot; %w}gzxN^  
int pivotIndex,l,r; lxb zHlX  
`'4)q}bB  
stack[++top]=0; = [@)R!3H  
stack[++top]=data.length-1; oh-|'5+,;h  
>FF5x#^&c  
while(top>0){ +pmu2}E.3  
int j=stack[top--]; )b4$A:  
int i=stack[top--]; W6/ @W  
b]fzRdhl  
pivotIndex=(i+j)/2; L36Yx7gT<  
pivot=data[pivotIndex]; [ !%R#+o=F  
Ib`-pRU;  
SortUtil.swap(data,pivotIndex,j); ig#r4nQ=  
2& LQg=O  
file://partition p~jlx~1-]  
l=i-1; D]03eu  
r=j; DtxE@,  
do{ )P Jw+5  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); |\9TvN^$`  
SortUtil.swap(data,l,r); onei4c>@  
} -*ELLY[  
while(l SortUtil.swap(data,l,r); #%,RJMv  
SortUtil.swap(data,l,j); G=/k>@Di  
gwB\<rzG  
if((l-i)>THRESHOLD){ msx-O=4g  
stack[++top]=i; +Ic ~ f1zh  
stack[++top]=l-1; l|`^*%W@u6  
} Snw3`|Y~<  
if((j-l)>THRESHOLD){ [3>GGX[Ic  
stack[++top]=l+1; fb]S-z(  
stack[++top]=j; y-aRXF=W  
} @tT-JwU  
Pcd *">v  
} DC4C$AyW r  
file://new InsertSort().sort(data); ^4Uw8-/9  
insertSort(data); |`O5Xs1{B  
} .TB"eUy  
/** \_]En43mg  
* @param data H=c`&N7E  
*/ ;O#g"8  
private void insertSort(int[] data) { cu9Qwm  
int temp; _S?qDG{E|  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); I[Ic$ta  
} .K8w8X/3  
} cNK)5- U  
} :<S<f%  
HTjkR*E  
} hUpnI@  
_k66Mkd#b  
归并排序: 8F5|EpB9M  
'xK.U I  
package org.rut.util.algorithm.support; UmU:j@ xvg  
S]/b\ B.h+  
import org.rut.util.algorithm.SortUtil; n%%7KTqu  
?;ukvD  
/** -.I4-6~  
* @author treeroot h)(* q+a  
* @since 2006-2-2 IzLF'F  
* @version 1.0 e79KbLV  
*/ } (FPV*mS  
public class MergeSort implements SortUtil.Sort{ P87# CAN  
[j,txe?n  
/* (non-Javadoc) ?? qq:`s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2B1xUj ]  
*/ 48D?'lW %  
public void sort(int[] data) { ^V*-1r1  
int[] temp=new int[data.length]; 9i$NhfOe  
mergeSort(data,temp,0,data.length-1); qi[Z,&  
} .i"W8~<e  
Qt>>$3]!!  
private void mergeSort(int[] data,int[] temp,int l,int r){ ?V(^YFzZ  
int mid=(l+r)/2; 9/o vKpY  
if(l==r) return ; R3.*dqo$  
mergeSort(data,temp,l,mid); `8_z!)  
mergeSort(data,temp,mid+1,r); TYns~X_PR  
for(int i=l;i<=r;i++){ "h"NW[R  
temp=data; T<b+s#n4  
} d3Di/Iej   
int i1=l; m}j:nk  
int i2=mid+1; -~f511<  
for(int cur=l;cur<=r;cur++){ H U+ I  
if(i1==mid+1) T? ,P*l  
data[cur]=temp[i2++]; Cr ? 4Ngw  
else if(i2>r) bJ /5|E?  
data[cur]=temp[i1++]; m#e3%150{  
else if(temp[i1] data[cur]=temp[i1++]; wEW4gz{s  
else ->{d`-}m'  
data[cur]=temp[i2++]; <W)u{KS#TY  
} A=5epsB  
} q%YV$$c   
R,2P3lv1v@  
} nR;D#"p%  
C#pZw[  
改进后的归并排序: e 8\;t"D  
`\u;K9S6  
package org.rut.util.algorithm.support; &BE  g  
ecJ6  
import org.rut.util.algorithm.SortUtil; $(pF;_W  
d@C&+#QDF  
/** o|pT;1a"  
* @author treeroot u+t$l^S  
* @since 2006-2-2 o]n!(f<(*  
* @version 1.0 #K\?E.9h  
*/ 13'vH]S$M  
public class ImprovedMergeSort implements SortUtil.Sort {  u6u=2  
7%?jL9Vw  
private static final int THRESHOLD = 10; J8a*s`ik  
G_H?f\/  
/* '\#EIG  
* (non-Javadoc) d%@~mcH>  
* pv!oz2w1  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) s) O[t  
*/ K0+.q?8D|  
public void sort(int[] data) { zLw{ {|  
int[] temp=new int[data.length]; :wqC8&V  
mergeSort(data,temp,0,data.length-1); F|bYWYED;  
} ikBYd }5  
SAV%4  
private void mergeSort(int[] data, int[] temp, int l, int r) { "[p@tc?5  
int i, j, k; rZPT89M6  
int mid = (l + r) / 2; N/QiI.V6  
if (l == r) wd@aw/  
return; abNV4 ,M  
if ((mid - l) >= THRESHOLD) Lw7=+h)  
mergeSort(data, temp, l, mid); 2L_6x<u'  
else 2?C`4AR[2H  
insertSort(data, l, mid - l + 1); ,tH5e&=U01  
if ((r - mid) > THRESHOLD) nR>r2wMk@  
mergeSort(data, temp, mid + 1, r); X6+qpp  
else ysIh[1E~%:  
insertSort(data, mid + 1, r - mid); @Y,7'0U  
x3ERCqTR  
for (i = l; i <= mid; i++) { 5l-mW0,MK  
temp = data; 8N%Bn&   
} _/*U2.xS  
for (j = 1; j <= r - mid; j++) { ^>y@4qB  
temp[r - j + 1] = data[j + mid]; 2 !" XzdD  
} V==z"  
int a = temp[l]; jDM w2#<  
int b = temp[r]; spofLu.  
for (i = l, j = r, k = l; k <= r; k++) { O#EV5FeF.  
if (a < b) { l%R50aL  
data[k] = temp[i++]; i|)Su4Dw  
a = temp; Syp"L;H8Em  
} else { ]{~NO{0@Y  
data[k] = temp[j--]; 8;Fn7k_Uf  
b = temp[j]; "P@>M)-9Z  
} XNM a0  
} gkBdR +  
} CRve.e8J  
4n1; Bh$  
/** XMB[h   
* @param data ;;$#)b  
* @param l C${ S^v  
* @param i e6B{QP#jq  
*/  8@{OR"Ec  
private void insertSort(int[] data, int start, int len) { kPBV6+d~  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); ZlYPoOq  
} gG%V 9eOQ  
} Uawpfgc}  
} , B&fFis  
} h0oMTiA  
+(D$9{y   
堆排序: C'=k&#<-  
'$As<LOEd/  
package org.rut.util.algorithm.support; J?JeU/:+  
{HC@u{K -  
import org.rut.util.algorithm.SortUtil; @=]~\[e\  
{*ZY(6^  
/** M}_ i52  
* @author treeroot XS0xLt=  
* @since 2006-2-2 .I VlEG0  
* @version 1.0 KD1=Y80P  
*/ ) yY6rI;:  
public class HeapSort implements SortUtil.Sort{ ~m1P_`T  
_ 7PMmW@  
/* (non-Javadoc) >StO.Q99  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5G0 $  
*/ YI-O{U  
public void sort(int[] data) { 8;y&Pb~)  
MaxHeap h=new MaxHeap(); rV({4cIe9R  
h.init(data); f\;65k_jq  
for(int i=0;i h.remove(); f"7M^1)h2%  
System.arraycopy(h.queue,1,data,0,data.length); Z34Wbun4  
} ~A<H9Bw  
O9'x -A%  
private static class MaxHeap{ :0K8h  
{ 74mf'IW  
void init(int[] data){ J`IDlGFYp  
this.queue=new int[data.length+1]; k+V6,V)my  
for(int i=0;i queue[++size]=data; FVv8--  
fixUp(size); j` E +qk  
}  Pi%%z  
} r[.>P$U  
obK*rdg ,  
private int size=0; 9p 4"r^  
Obw?_@X  
private int[] queue; Z3 ;!l  
C8#@+Q.  
public int get() { wOQ#N++C  
return queue[1]; <?D[9Mk$  
} I fO;S*Qt  
; )Kh;;e  
public void remove() { &`Y!;@K9W#  
SortUtil.swap(queue,1,size--); xX0-]Y h:  
fixDown(1); Cp^@zw*/  
} d"G+8}.4  
file://fixdown 7z\m; 1  
private void fixDown(int k) { IdIrI  
int j; #jpoHvt h  
while ((j = k << 1) <= size) { 3:"]Rn([P  
if (j < size %26amp;%26amp; queue[j] j++; c/L>>t  
if (queue[k]>queue[j]) file://不用交换 =H0vE7{*  
break; #{r#;+  
SortUtil.swap(queue,j,k); V~GWl1#7  
k = j; `"iY*  
} S1n3(U:m  
} _$<Gyz*  
private void fixUp(int k) { RjJU4q  
while (k > 1) { " "O"  
int j = k >> 1; ?^' 7+8C*J  
if (queue[j]>queue[k]) UE _fpq  
break; _u"nvgVz9  
SortUtil.swap(queue,j,k); s6 ( z  
k = j; ?#0snlah|  
} D PrBFmHF  
} >}~#>Ru  
/wQL  
} ]DFXPV  
U,/6;}  
} < `qRA]  
<1w/hy&mWN  
SortUtil: "HD+rmUEH  
3qHQX?a  
package org.rut.util.algorithm; S gMrce<;  
4vK8kkW1  
import org.rut.util.algorithm.support.BubbleSort; &m3.h!dq  
import org.rut.util.algorithm.support.HeapSort; |VOg\[f  
import org.rut.util.algorithm.support.ImprovedMergeSort; D+V7hpH-  
import org.rut.util.algorithm.support.ImprovedQuickSort; Mv|ykJoz"  
import org.rut.util.algorithm.support.InsertSort; aYL|@R5;e  
import org.rut.util.algorithm.support.MergeSort; KDi|(  
import org.rut.util.algorithm.support.QuickSort; |( (zTf  
import org.rut.util.algorithm.support.SelectionSort; [#" =yzR<3  
import org.rut.util.algorithm.support.ShellSort; aI zv  
c_{z(W"  
/** pDPxl?S  
* @author treeroot ?[ly`>KpJ  
* @since 2006-2-2 g}&hl"j  
* @version 1.0 U]qav,^[  
*/ ?&WYjTU]H  
public class SortUtil { `Yc _5&"  
public final static int INSERT = 1; L~{_!Q  
public final static int BUBBLE = 2; '"pd  
public final static int SELECTION = 3; ]!1OH |Ad  
public final static int SHELL = 4; #Z=tJ  
public final static int QUICK = 5; O9v_y+M+M  
public final static int IMPROVED_QUICK = 6; +]>+a<x*%  
public final static int MERGE = 7; 39 e;  
public final static int IMPROVED_MERGE = 8; ,F+B Wot4  
public final static int HEAP = 9; *, Ld/O;s  
 (dJI_A  
public static void sort(int[] data) { N\t1T(C|  
sort(data, IMPROVED_QUICK); -0o[f53}p  
} PZ:u_*Vu`  
private static String[] name={ m!XI{F@x  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 3HG;!D~m;  
}; TL= YQA  
fi PIAT}  
private static Sort[] impl=new Sort[]{ m(D]qYwh  
new InsertSort(), Ue5O9;y]u  
new BubbleSort(), ~CRSL1?  
new SelectionSort(), K5 3MMH[q#  
new ShellSort(), Gtv,Izt  
new QuickSort(), RR1A65B  
new ImprovedQuickSort(), J}spiVM  
new MergeSort(), <Pqv;WI|R  
new ImprovedMergeSort(), @54*.q$  
new HeapSort() q)u2Y]  
}; @b&84Gn2 r  
78#!Q.##  
public static String toString(int algorithm){ ;'T{li2  
return name[algorithm-1]; g]mtFrP  
} {B$2"q/~  
fT:}Lj\L1  
public static void sort(int[] data, int algorithm) { ]*"s\ix  
impl[algorithm-1].sort(data); 4FeEGySow  
} F SMj  
R5Yl1   
public static interface Sort { AWr}"r?s  
public void sort(int[] data); .;/L2Jv  
} S^RUw  
r2*<\ax  
public static void swap(int[] data, int i, int j) { )9"oL!2h  
int temp = data; `ue[q!Qq  
data = data[j]; ~d>%,?zz  
data[j] = temp; _fTwmnA  
} ";3*?/uM  
} `hh9"Ws%  
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:
10+5=?,请输入中文答案:十五