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
  • 6314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。 MGDv4cFE.  
插入排序: MDt?7c  
vy2aNUmt  
package org.rut.util.algorithm.support; ZQA C &:  
V.:A'!$#  
import org.rut.util.algorithm.SortUtil; )W|jt/  
/** p>3'77 V  
* @author treeroot n4y6Ua9m{  
* @since 2006-2-2 %;$Y|RbmqE  
* @version 1.0 ><c5Humr  
*/ HH@xn d  
public class InsertSort implements SortUtil.Sort{ K9'*q3z  
8-YrmP2k  
/* (non-Javadoc) x`i`]6q  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S\gP=.G  
*/ *wcoDQ b;  
public void sort(int[] data) { 7g+]  
int temp; #SNI dc>9\  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); vyGLn  
} ,5*xE\9G  
} A"iD4Q  
} Q@VnJ,  
a@ }r[0O  
} >irT|VTf  
:/%xK"  
冒泡排序: !5!$h` g  
rxeXz<  
package org.rut.util.algorithm.support; [d>yo_iB  
RGI6W{\  
import org.rut.util.algorithm.SortUtil; F6VIH(  
e/jM+%  
/** rd4'y~#S  
* @author treeroot Wb4{*~  
* @since 2006-2-2 5>Yd\(`K  
* @version 1.0 gi@ji-10  
*/ o;_bs~}y  
public class BubbleSort implements SortUtil.Sort{ N~_jiVD>  
6*33k'=;F  
/* (non-Javadoc) _O9H. _E  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y_hRL&u3W  
*/ ld:alEo  
public void sort(int[] data) { ~ O=|v/]  
int temp; 2_b'mepV  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ~(^*?(Z  
if(data[j] SortUtil.swap(data,j,j-1); K/ m)f#  
} u@u.N2H.%  
} FD+PD:cQn  
} TFDCo_>o  
} L b;vrh;A  
wN hR(M7  
} rss.F3dK  
1t=X: ]0j  
选择排序: dU^<7 K:S  
,GP4I3D  
package org.rut.util.algorithm.support; 1?#9K j{ql  
-8 =u{n  
import org.rut.util.algorithm.SortUtil; `h5eej&s(  
L#q9_-(#  
/** x`vs-Y:P  
* @author treeroot HTyF<K  
* @since 2006-2-2 ~7WXjVZ  
* @version 1.0 \+Ln~\Sv  
*/ ]Ja8i%LjOG  
public class SelectionSort implements SortUtil.Sort { e4%*I8 ^e  
:P~& b P  
/* H<7DcwXv  
* (non-Javadoc) Ilu`b|%D  
* G2{M#H  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) RTBBb:eX  
*/ @Qjl`SL%O^  
public void sort(int[] data) { slvs oN@  
int temp; (jMAa%  
for (int i = 0; i < data.length; i++) { Cf=q_\0|W  
int lowIndex = i; E816 YS='  
for (int j = data.length - 1; j > i; j--) { ?i EXFYJG  
if (data[j] < data[lowIndex]) { dN/ "1%9)  
lowIndex = j; l~!fQ$~  
} yx w27~  
} rnv7L^9^A  
SortUtil.swap(data,i,lowIndex); [*{\R`M  
} +xBK^5/x  
} #Y>%Dr&  
VSpt&19  
} wW! r}I#  
BRXb<M^;_  
Shell排序: KSB_%OI1  
}>X\"  
package org.rut.util.algorithm.support; Q>a7Ps@~  
/,N!g_"Z  
import org.rut.util.algorithm.SortUtil; {F+M&+``  
s?x>Yl %  
/** Dq%r !)  
* @author treeroot ^!p<zZ  
* @since 2006-2-2 +[8Kl=]L  
* @version 1.0 ]{2{:`s  
*/ Q] yT  
public class ShellSort implements SortUtil.Sort{ 0 ij~e<  
X$|TN+Ub  
/* (non-Javadoc) !eAdm  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) kbp( a+5  
*/ ={E!8"  
public void sort(int[] data) { ml33qXW:  
for(int i=data.length/2;i>2;i/=2){ ^&';\O@)  
for(int j=0;j insertSort(data,j,i); _[vdY|_  
} Lr}b,  
} syW9Hlm  
insertSort(data,0,1); DkF2R @  
} `KJYm|@i  
{[t"O u  
/** n]C%(v!u3  
* @param data FO(0D?PCR  
* @param j %6IlE.*,  
* @param i -Xxu/U})%  
*/ <\d|=>;  
private void insertSort(int[] data, int start, int inc) { ')u5l  
int temp; vMZ7uO  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); L_lDFF  
} f5yux}A{  
} W93JY0Ls9|  
} &I}T<v{f  
Q),3&4pM  
} >4|c7z4  
lKV\1(`  
快速排序: k BiBXRt  
l'7Mw%6{  
package org.rut.util.algorithm.support; 5h|m4)$  
U.hERe ~X  
import org.rut.util.algorithm.SortUtil; !&a;P,_Fb  
Z ]aK'  
/** -q&7J' N  
* @author treeroot "0H56#eW  
* @since 2006-2-2 oWx_O-_._  
* @version 1.0 ;]&~D +XH  
*/ bQdSX8: !R  
public class QuickSort implements SortUtil.Sort{ 7edPH3  
G_^iR-  
/* (non-Javadoc) ^YG7dd_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )zW%\s*'  
*/ n-hvh-ZO  
public void sort(int[] data) { [<Os~bfOv  
quickSort(data,0,data.length-1); Jny)uo8  
} Q$fRi[/L  
private void quickSort(int[] data,int i,int j){ P!FEh'.  
int pivotIndex=(i+j)/2; kBy rhK5U  
file://swap Q$3\ /mz  
SortUtil.swap(data,pivotIndex,j); oEQ{m5O9  
y^d[( c  
int k=partition(data,i-1,j,data[j]); s^g.42?u  
SortUtil.swap(data,k,j); .L^pMU+!^  
if((k-i)>1) quickSort(data,i,k-1); p2Dh3)&  
if((j-k)>1) quickSort(data,k+1,j); < g3du~  
t/d',Khg  
} >d{dZD}  
/** 5e#&"sJ.1  
* @param data \o:ELa HY  
* @param i ]{,Gf2v;;d  
* @param j g= FDm*  
* @return 5?5- ;H  
*/ =&q-[JW  
private int partition(int[] data, int l, int r,int pivot) { FJ{,=@  
do{ zNV!@Yr  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); z/Ns5  
SortUtil.swap(data,l,r); >~5lYD  
} QE 45!Z g  
while(l SortUtil.swap(data,l,r); WxVn&c\  
return l; ':4}O#  
} +}7Ea:K   
@K$VV^wp  
} %@lV-(5q  
h"%|\o+3  
改进后的快速排序: yV:EK{E  
:DdBn.  
package org.rut.util.algorithm.support; D!bKm[T  
n+{HNr  
import org.rut.util.algorithm.SortUtil; d~{jEg  
L$+d.=]  
/** ?$|uT  
* @author treeroot W\@?e32  
* @since 2006-2-2 9Z,*h-o  
* @version 1.0 .D8~)ZWN  
*/ eg"=H50  
public class ImprovedQuickSort implements SortUtil.Sort { w4e%-Ln  
bA@ /B'  
private static int MAX_STACK_SIZE=4096; =tr1*s{  
private static int THRESHOLD=10; RzA2*]%a  
/* (non-Javadoc) E`Jp(gK9F  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &W=V%t>Z  
*/ <w0NPrS]  
public void sort(int[] data) { +}_Pf{MW  
int[] stack=new int[MAX_STACK_SIZE]; J [ YtA  
m:)Z6  
int top=-1; 4S,.R  
int pivot; P%zH>K  
int pivotIndex,l,r; _0'm4?"  
{&2$[g=[ ^  
stack[++top]=0; uY^v"cw/F  
stack[++top]=data.length-1; _:35d1[  
B{7Kzwh;  
while(top>0){ 1.# |QX  
int j=stack[top--]; x9&-(kBU  
int i=stack[top--]; ]\ CU9J|H8  
yicO!:bM  
pivotIndex=(i+j)/2; -O|&c9W.O  
pivot=data[pivotIndex]; 9z5\*b s  
`]*%:NZP@  
SortUtil.swap(data,pivotIndex,j); }.0Bl&\UK  
^)&Ly_xrU  
file://partition A <4_DVd@@  
l=i-1; Ua):y) A  
r=j; j*uXB^ 4  
do{ )^4ko  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ipG5l  
SortUtil.swap(data,l,r); Dt.0YKF  
} aSc{Ft/O  
while(l SortUtil.swap(data,l,r); =%!e(N'p  
SortUtil.swap(data,l,j); N>+P WE$  
S8 :"<B)  
if((l-i)>THRESHOLD){ pv$mZi4i  
stack[++top]=i; A0G)imsW:_  
stack[++top]=l-1;  t?gJNOV  
} v`y6y8:>  
if((j-l)>THRESHOLD){ ,Pn-ZF  
stack[++top]=l+1; C>.e+V+':  
stack[++top]=j; 4L8z>9D  
} >; aCf#q  
i.3cj1  
} 3pvYi<<D'  
file://new InsertSort().sort(data); !X^Hi=aV  
insertSort(data); gfi AK%  
} _eGT2,D5r  
/** R)ERx z#  
* @param data led))qd@V-  
*/ Y4d3n  
private void insertSort(int[] data) { XMGx ^mn  
int temp; /QQ8.8=5  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); |+>uA[6#  
} {3VZ3i  
} ~A6"sb=  
} {J (R  
MR`:5e  
} 1%%'6cWWu  
Jlp<koy  
归并排序: mw_ E&v  
VZ$=6CavH  
package org.rut.util.algorithm.support; F8H'^3`b`U  
WvujcmOf  
import org.rut.util.algorithm.SortUtil; U#bl=%bF  
#O"  
/** dm6~  
* @author treeroot Z1M>-[j)  
* @since 2006-2-2 Frk cO  
* @version 1.0 "NDxgJ%J35  
*/ X 7=fX~s  
public class MergeSort implements SortUtil.Sort{ *I0Tbc O  
J1bA2+5.*e  
/* (non-Javadoc) %?bcT[|3  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) u_PuqRcs  
*/ &-M]xo ^  
public void sort(int[] data) { f|U0s  
int[] temp=new int[data.length]; baee?6  
mergeSort(data,temp,0,data.length-1); 6R`Oh uN.>  
} Zmf'{tT5  
b.s9p7:J  
private void mergeSort(int[] data,int[] temp,int l,int r){ 3t)v %S|k  
int mid=(l+r)/2; mLwoi!]m  
if(l==r) return ; {Hl[C]25X  
mergeSort(data,temp,l,mid); TI=h_%mO  
mergeSort(data,temp,mid+1,r); in<}fAro6  
for(int i=l;i<=r;i++){ yPV' pT)  
temp=data; *5e+@rD`  
} Bd@'e7{  
int i1=l; Zk&h:c  
int i2=mid+1; w5*Z!  
for(int cur=l;cur<=r;cur++){ Jic}+X*0  
if(i1==mid+1) X eoJ$PfT  
data[cur]=temp[i2++]; 9XX>A*  
else if(i2>r) l?/Y  
data[cur]=temp[i1++]; !Vheq3"q/  
else if(temp[i1] data[cur]=temp[i1++]; k6!4Zz_8  
else (DDyK[t+VX  
data[cur]=temp[i2++]; C)Jn[/BD  
} ME^ ,'&  
} ,`32!i  
3$VxRz)  
} 3LDsxE=N:q  
=p@8z /u  
改进后的归并排序: ;Wc4qJ.@  
o%[U  
package org.rut.util.algorithm.support; M\oTZ@  
#D*r]M  
import org.rut.util.algorithm.SortUtil; cX:HD+wO  
:m'+tGs  
/** /\Z J   
* @author treeroot e8}Ezy"^  
* @since 2006-2-2 Wkzs<y"  
* @version 1.0 BI2; ex  
*/ ~>5#5!}@*  
public class ImprovedMergeSort implements SortUtil.Sort { at|g%$%  
mM/i^zT  
private static final int THRESHOLD = 10; |.P/:e9  
 Fl3#D7K  
/* }CDk9Xk  
* (non-Javadoc) W0XF~  
* Q7gY3flg  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9!U@"~yB  
*/ -?6MU~"GK  
public void sort(int[] data) { GX&b;N  
int[] temp=new int[data.length];  U47}QDh  
mergeSort(data,temp,0,data.length-1); vyI%3+N@  
} ^V3v{>D>  
'9?;"=6(  
private void mergeSort(int[] data, int[] temp, int l, int r) { ]"~51HQZ  
int i, j, k; X"q!Y#)  
int mid = (l + r) / 2; k~3.MU  
if (l == r) in-C/m#  
return; Q;u SWt<{  
if ((mid - l) >= THRESHOLD) U__(; /1;  
mergeSort(data, temp, l, mid); ZJ,cQ+fn  
else 'b/ <x|  
insertSort(data, l, mid - l + 1); 7@}$|u:JUF  
if ((r - mid) > THRESHOLD) 8K9$,Ii  
mergeSort(data, temp, mid + 1, r); Ucdj4[/,h  
else T]T;$  
insertSort(data, mid + 1, r - mid); }_ mT l@*  
4~z?"  
for (i = l; i <= mid; i++) { ?BA^YF  
temp = data; Pw0Ci  
} ?=;qK{)37  
for (j = 1; j <= r - mid; j++) { ^Q+i=y{W  
temp[r - j + 1] = data[j + mid]; m~#%Q?_ %  
} &o3K%M;C?  
int a = temp[l]; BxK^?b[E8  
int b = temp[r]; lb*8G  
for (i = l, j = r, k = l; k <= r; k++) { ww k PF  
if (a < b) { KvPX=/&Zu  
data[k] = temp[i++]; up '  
a = temp; $ (=~r`O+1  
} else { }!>=|1 fY  
data[k] = temp[j--]; 5S{7En~zUE  
b = temp[j]; X"fh@.  
} [&?8,Q(  
} w$Ot{i|$(  
} ,)!u)wz  
-fI@])$9J  
/**  j2l55@  
* @param data <M]h{BS=  
* @param l RW$:9~  
* @param i e`>{$t  
*/ efP&xk  
private void insertSort(int[] data, int start, int len) { '3IC*o"  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); mqff]m  
} K+=+?~  
} >wHxmq8F5<  
} (b,[C\RBF  
} JwnQ0 e  
t*<#<a  
堆排序: I zbU)ud  
eM7Bc4V  
package org.rut.util.algorithm.support; `#-P[q<v-  
sbj(|1,ac  
import org.rut.util.algorithm.SortUtil; '_k+WH&  
:!a 2]-D}  
/** '})0!g<Y  
* @author treeroot P|tNL}2`;  
* @since 2006-2-2 `+:.L>5([  
* @version 1.0 !HeSOzN  
*/ G` fC/Le  
public class HeapSort implements SortUtil.Sort{ /walu+]h  
*+'2?*  
/* (non-Javadoc) (+<1*5BEkT  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) E37<"(;  
*/ @+F4YJmB?l  
public void sort(int[] data) { W|:lVAP.|}  
MaxHeap h=new MaxHeap(); %ek'~  
h.init(data); Eodn/  
for(int i=0;i h.remove(); sVk$x:k1M  
System.arraycopy(h.queue,1,data,0,data.length); 54-#QIx|  
}  Uo12gIX  
@yXfBML?]  
private static class MaxHeap{ zk*c)s  
l {jmlT  
void init(int[] data){ 1i:|3PA~  
this.queue=new int[data.length+1]; uEyH2QO  
for(int i=0;i queue[++size]=data; gBh;=vOD  
fixUp(size); I+>%uShm  
} $N :Vo(*  
} yme^b ;a  
l\M_-:I+4  
private int size=0;  z@|GC_L  
;,i]w"*  
private int[] queue; i wxVl)QL  
~8"8w(CG*I  
public int get() { ay "'#[  
return queue[1]; \I"Z2N>^z  
} R8rfM?"W  
\0lnxLA  
public void remove() { *BuUHjTv  
SortUtil.swap(queue,1,size--); @/ZF` :   
fixDown(1); g;$Xq)Dd  
} ?Kvl!F!`  
file://fixdown ae:zWk'!  
private void fixDown(int k) { }ENR{vz$A  
int j; 8Og_W8  
while ((j = k << 1) <= size) { P=3RLL<l  
if (j < size %26amp;%26amp; queue[j] j++; W^3uEm&l!)  
if (queue[k]>queue[j]) file://不用交换 322jR4QGr  
break; ]EwVpvTw  
SortUtil.swap(queue,j,k); |-V&O=!^+  
k = j; J psPNa  
} O+ }qQNe<  
} `wF8k{Pb  
private void fixUp(int k) { WDFjp  
while (k > 1) { FnJ?C&xK  
int j = k >> 1; ;nC.fBu  
if (queue[j]>queue[k]) V=fEPM  
break; mUS_(0q  
SortUtil.swap(queue,j,k); OHiQ7#y  
k = j; w =. Fj  
} 8-y{a.,u.  
} x(<(t: ?o  
%IC73?  
} =+ t^f  
E0 `Lg c  
} dlhdsj:  
>^XBa*4;Y  
SortUtil: P/EM :  
3~nnCR[R  
package org.rut.util.algorithm; F u&EhGm6  
L\y;LSTU  
import org.rut.util.algorithm.support.BubbleSort; 6c^e\0q  
import org.rut.util.algorithm.support.HeapSort; asY[8r?U  
import org.rut.util.algorithm.support.ImprovedMergeSort; ui(^k $  
import org.rut.util.algorithm.support.ImprovedQuickSort; 0b4R  
import org.rut.util.algorithm.support.InsertSort; CR6R?R3b  
import org.rut.util.algorithm.support.MergeSort; P!"&%d  
import org.rut.util.algorithm.support.QuickSort; 6mKjau{r_  
import org.rut.util.algorithm.support.SelectionSort; )_/5*Ly@  
import org.rut.util.algorithm.support.ShellSort; v3v[[96p  
[D*UT#FM  
/** @as"JAN  
* @author treeroot @+atBmt  
* @since 2006-2-2 Q#nOJ(KV  
* @version 1.0 ,V*%V;  
*/ R+&jD;U{  
public class SortUtil { ooUk O  
public final static int INSERT = 1; N^Bo .U0\  
public final static int BUBBLE = 2; n_3O-X(  
public final static int SELECTION = 3; 2tal  
public final static int SHELL = 4; TLoz)&@  
public final static int QUICK = 5; kOh{l: 2-+  
public final static int IMPROVED_QUICK = 6; 5|jw^s7  
public final static int MERGE = 7; 35tu>^_#V  
public final static int IMPROVED_MERGE = 8; MwmUgN"g  
public final static int HEAP = 9; &QhX1dT+  
Qg6 W5Hc  
public static void sort(int[] data) { SM`w;?L:?  
sort(data, IMPROVED_QUICK); +-E~6^>  
} 1Bpv"67  
private static String[] name={ <{~6}6o  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ;j4?>3  
}; i;!H!-sM  
ID#I`}h.k  
private static Sort[] impl=new Sort[]{ XS$OyW_Q  
new InsertSort(), 7O, U?p  
new BubbleSort(), 61xs%kxb..  
new SelectionSort(), rk)##)  
new ShellSort(), 271&i  
new QuickSort(), 6M13f@v  
new ImprovedQuickSort(), qIld;v8w"g  
new MergeSort(), cI=(\pC  
new ImprovedMergeSort(), C -iK$/U  
new HeapSort() r2k2%nI-J  
}; e^ v.)  
jg?x&'u\)  
public static String toString(int algorithm){ {J^lX/D  
return name[algorithm-1]; d6W SL;$  
} c+2FC@q{l  
b$Vz2Fzx  
public static void sort(int[] data, int algorithm) { :]J Ye*  
impl[algorithm-1].sort(data); ?(R]9.5S  
} }<dRj  
~i`>adJ:  
public static interface Sort { f%V4pzOc"  
public void sort(int[] data); }!6\|;Qsz,  
} ?wO-cnl  
y.[Mnj  
public static void swap(int[] data, int i, int j) { 'Y]mOD^ p  
int temp = data; .|/~op4;  
data = data[j]; 9;veuX#(  
data[j] = temp; y~75r\"R  
} ^$ t7+g  
} 6oBfB8]:d  
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