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
  • 7594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。 d#W>"Cqxqa  
插入排序: phc9esz  
XwlF[3VbiX  
package org.rut.util.algorithm.support; ^sP-6 ^  
$xK*TJ(k  
import org.rut.util.algorithm.SortUtil; 02F\1fXS  
/** 0!5w0^1  
* @author treeroot Vx#n0z  
* @since 2006-2-2 UVUoXv)N  
* @version 1.0 d7U%Q8?wUR  
*/ eKv{N\E  
public class InsertSort implements SortUtil.Sort{ 4?c4GT9(6S  
oNFvRb2Rd  
/* (non-Javadoc) a0/[L  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^77Q4"{W  
*/ voitdz  
public void sort(int[] data) { L"(k;Mfe  
int temp; J+:gIszsWT  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); >s;>"]  
} ?E6 C|A$I  
} cq0#~20  
} +\yQZ{4'@  
.dQEr~f#}  
} = ;z42oS  
<?E~Qc t  
冒泡排序: Rch?@O#J  
')82a49eA  
package org.rut.util.algorithm.support; :H8`z8=0f{  
?}Y;/Lwx  
import org.rut.util.algorithm.SortUtil; |qq7vx  
)d =8)9B  
/** ^)%TQ.  
* @author treeroot ]N4?*S*jd)  
* @since 2006-2-2 ?(2^lH~6h  
* @version 1.0 C'S&  
*/ 7|Bg--G1  
public class BubbleSort implements SortUtil.Sort{ U:+wt}-T"  
NU/:jr.W#  
/* (non-Javadoc) =*'K'e>P3  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _I<LB0kgf.  
*/ -8%[ 7Z]  
public void sort(int[] data) { S @tpd'  
int temp; haoQr)S  
for(int i=0;i for(int j=data.length-1;j>i;j--){ [[A}MF*@  
if(data[j] SortUtil.swap(data,j,j-1); 0~GtK8^B  
} Sft+Gb6  
} r zO5 3\  
} V'm4DR#M  
}  }0f"SWO>  
s+7#TdhA  
} UR' P,  
rL3 f%L  
选择排序: )|Md"r_B  
=H)"t:xE  
package org.rut.util.algorithm.support;  X0&[cyP!  
D%,AdR"m  
import org.rut.util.algorithm.SortUtil; fKQq]&~ H  
Q3P*&6wA  
/** "qxu9Hg!  
* @author treeroot ;RW0 24  
* @since 2006-2-2 N~0~1 WQn  
* @version 1.0 N[j*Q 8X_  
*/ a%NSL6  
public class SelectionSort implements SortUtil.Sort { pe@j`Sm:Ej  
9LK<u$C  
/* ["} Yp  
* (non-Javadoc) [ m#|[%  
* vq;_x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Izr_]%  
*/ $*N)\>~X  
public void sort(int[] data) { )|Xi:Zd5>  
int temp; ]O 8hkGa  
for (int i = 0; i < data.length; i++) { Ce-D^9kC  
int lowIndex = i; E@N& Y1t  
for (int j = data.length - 1; j > i; j--) { se ]q~<&  
if (data[j] < data[lowIndex]) { ffgb 3  
lowIndex = j; #z&@f  
} )DwHLaLW  
} @yxF/eeEy+  
SortUtil.swap(data,i,lowIndex); 8D5v'[j-  
} 0k):OVfm=  
} N2/t  
`zjbyY  
} `p\@b~GM  
Lq cHsUFj  
Shell排序: Di>B:=  
/+g)J0u  
package org.rut.util.algorithm.support; Lcow2 SbH  
iW$f1=i  
import org.rut.util.algorithm.SortUtil;  PH6NU&H  
SM1[)jZ-  
/** +L>?kr[i[  
* @author treeroot h&O8e;S#  
* @since 2006-2-2 2/4,iu(T`c  
* @version 1.0 { 2\.  
*/ HHXm 4}!;<  
public class ShellSort implements SortUtil.Sort{ MzX4/*ba  
lN,)T%[0-  
/* (non-Javadoc) jp|1S^b  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +u|p<z  
*/ b@?pofZ`k  
public void sort(int[] data) { vzPuk|q3  
for(int i=data.length/2;i>2;i/=2){ c2fqueK|:W  
for(int j=0;j insertSort(data,j,i); e A'1  
} p"k[ac{  
} Jh!'"7  
insertSort(data,0,1); pon0!\ZT=  
} wr{ [4$O  
f zsD  
/** G ;fc8a[X  
* @param data 2Pz)vnV"  
* @param j TF7~eyLg  
* @param i REc+@;B  
*/ jt,dr3|/n  
private void insertSort(int[] data, int start, int inc) { W1;u%>Uh  
int temp; zd-qQ.j0  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); (yxHXO9N  
} %SJ2W>e  
} \\{+t<?J  
} RZrQ^tI3"  
Y24H` s1u/  
} e3!0<A[X  
at5>h   
快速排序: {IR-g,B  
E3P2  
package org.rut.util.algorithm.support; q{E44 eQ7F  
w/UZ6fu  
import org.rut.util.algorithm.SortUtil; J_ y+.p- 5  
<-rw>,  
/** ?D8 +wj  
* @author treeroot 5*P+c(=  
* @since 2006-2-2 w_hN2eYo&e  
* @version 1.0 6<>T{2b:(p  
*/ 1xsIM'&  
public class QuickSort implements SortUtil.Sort{ %UnL,V9)  
)Z qY`by!  
/* (non-Javadoc) gt Vnn]Jh  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 6tKCY(#oO+  
*/ V_p[mSKJv  
public void sort(int[] data) { UD}#c:I  
quickSort(data,0,data.length-1); Z:3SI$tO  
} Ptj[9R  
private void quickSort(int[] data,int i,int j){ /.>8e%)  
int pivotIndex=(i+j)/2; H\!p%Y  
file://swap m.EIMuj  
SortUtil.swap(data,pivotIndex,j); dw"{inMf  
rwh,RI) )g  
int k=partition(data,i-1,j,data[j]);  5i|DJ6  
SortUtil.swap(data,k,j); 5wgeA^HE2y  
if((k-i)>1) quickSort(data,i,k-1); hiBZZ+^[  
if((j-k)>1) quickSort(data,k+1,j); Li8$Rb~q  
&K@ RTgb  
} mNDz|Ln  
/** ]sL)[o  
* @param data R m^$Dn  
* @param i YOE!+MiO  
* @param j GX-V|hLaGX  
* @return BfUM+RC%5  
*/ (eEs0  
private int partition(int[] data, int l, int r,int pivot) { T\3a T  
do{ 5N.-m;s  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); O4lHR6M2  
SortUtil.swap(data,l,r); vn"+x_  
} p^>_VE[S  
while(l SortUtil.swap(data,l,r); m?)REE  
return l; x_VD9  
} 6G0Y,B7&  
XMpa87\  
} OJ!=xTU%h  
sfKu7puc  
改进后的快速排序: (Xv' Te?  
4SDUTRo a  
package org.rut.util.algorithm.support; S;L=W9=wby  
bpp{Z1/4  
import org.rut.util.algorithm.SortUtil; K}e:zR;;^  
ckhU@C|=*  
/** E 8LA+dKN:  
* @author treeroot F(}~~EtPHo  
* @since 2006-2-2 ;:DDz  
* @version 1.0 QMAineO  
*/ 2/F";tc\'  
public class ImprovedQuickSort implements SortUtil.Sort { i&_&4  
lNRGlTD%  
private static int MAX_STACK_SIZE=4096; SR8)4:aKW  
private static int THRESHOLD=10; Q!*}^W  
/* (non-Javadoc) |S0nR<x-M  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1~aP)q  
*/ g:rjt1w`D  
public void sort(int[] data) { F :p9y_W  
int[] stack=new int[MAX_STACK_SIZE]; =&~7Q"  
9S_PZH  
int top=-1; vOQ 3A%/  
int pivot; 1=U NA :t<  
int pivotIndex,l,r; aP&bW))CI  
8gn12._x  
stack[++top]=0; d.3cd40Q  
stack[++top]=data.length-1; @]F1J  
l.nd Wv  
while(top>0){ o7i>D6^^  
int j=stack[top--]; 5x?YFq6k  
int i=stack[top--]; /?*GJN#  
dYxX%"J  
pivotIndex=(i+j)/2; O3KTKL]  
pivot=data[pivotIndex]; w]O [{3"  
1Xn:B_pP  
SortUtil.swap(data,pivotIndex,j); ` G- V %  
>h3m/aeNC  
file://partition scQnL'\  
l=i-1; '^!#*O  
r=j; 9,c_(%C  
do{ tN1xZW:  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); fPBJ%SZ  
SortUtil.swap(data,l,r); Uu_Es{@  
} @ Cd#\D|  
while(l SortUtil.swap(data,l,r); -~] q?k?  
SortUtil.swap(data,l,j); A~)#  
AC&)FY  
if((l-i)>THRESHOLD){ mxEn iy  
stack[++top]=i; M~ eXC  
stack[++top]=l-1; Em ;2fh  
} )eD9H*mq  
if((j-l)>THRESHOLD){ (J 1:J  
stack[++top]=l+1; GTuxMg`  
stack[++top]=j; f Hd|tl  
} VS jt|F)t  
(|9t+KP  
} G$mAyK:  
file://new InsertSort().sort(data); /P%OXn$i/  
insertSort(data); 5_7y1  
} Aw$+Ew[8 2  
/** ~J:]cy)Q  
* @param data cw"Ou%  
*/ s3sPj2e{  
private void insertSort(int[] data) { / DG  t  
int temp; ItD&L ))  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ~YRG9TK  
} oH='\M%+  
} zQ~ax!}R  
} Ms 3Sri  
zI,z<-  
}  <BiSx  
V| &->9"  
归并排序: Ji)Ys ebV  
c> 0R_  
package org.rut.util.algorithm.support; 3 63KU@`  
XY^]nm-{I  
import org.rut.util.algorithm.SortUtil;  35%\"Y?  
)_olJCdaP^  
/** ~JQ6V?fucD  
* @author treeroot p|+TgOYOc  
* @since 2006-2-2 $W]}m"l  
* @version 1.0 ")YD~ZA%)  
*/ = 6'Fm$R  
public class MergeSort implements SortUtil.Sort{ ]{| wU.  
|/;;uK,y  
/* (non-Javadoc) p1N3AhXY  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) bRD-[)  
*/ )uu(I5St  
public void sort(int[] data) { Ge7Uety  
int[] temp=new int[data.length]; Nsn~mY%  
mergeSort(data,temp,0,data.length-1); tj4/x7!  
} 3O*^[$vM  
&u2H^ j  
private void mergeSort(int[] data,int[] temp,int l,int r){ x n=#4:f  
int mid=(l+r)/2; %uw7sGz\  
if(l==r) return ; p1UYkmx[  
mergeSort(data,temp,l,mid); UvR.?js(O  
mergeSort(data,temp,mid+1,r); sBk|KG  
for(int i=l;i<=r;i++){ 7 !dj&?  
temp=data; m6uFmU*<M}  
} *#9?9SYSk  
int i1=l; [Ob09#B%:5  
int i2=mid+1; ^r~O*  
for(int cur=l;cur<=r;cur++){ "H#pN;)+   
if(i1==mid+1) 5.$/]2VK  
data[cur]=temp[i2++]; @jCMQYR  
else if(i2>r) " GY3sam  
data[cur]=temp[i1++]; !bs5w_@  
else if(temp[i1] data[cur]=temp[i1++]; mw&'@M_(7  
else {T-=&%||  
data[cur]=temp[i2++]; x[=,$;o+  
} 3Cgv($xl&  
} "5204I  
a<J< Oc!  
} iPdS>e e  
21O@yNpS$  
改进后的归并排序: V :/v r  
I?RUVs  
package org.rut.util.algorithm.support; I? ="Er[g}  
U+R9bn   
import org.rut.util.algorithm.SortUtil; vnWt8?)]^  
(8baa.ge  
/** EU7nS3K)O~  
* @author treeroot 0t[ 1#!=k  
* @since 2006-2-2 pg Q^w0BQV  
* @version 1.0 ^5Zka!'X2Z  
*/ @/,0()*dL  
public class ImprovedMergeSort implements SortUtil.Sort { 7g$*K0m`  
Y-lwS-Ii  
private static final int THRESHOLD = 10; OLo?=1&;;  
n&,X ']z.  
/* aJ@lT&.  
* (non-Javadoc) fr'DV/T  
* $xCJ5M4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %(|-+cLW+  
*/ CaV@<T  
public void sort(int[] data) { +p[O|[z  
int[] temp=new int[data.length]; +/ {lz8^,  
mergeSort(data,temp,0,data.length-1); <0;G4fE7[H  
} d3\KUR^  
,Wtgj=1!.  
private void mergeSort(int[] data, int[] temp, int l, int r) { pedyWA>  
int i, j, k; T"t.t%(8  
int mid = (l + r) / 2; +:W/=C d(h  
if (l == r) yuC|_nL  
return; k!bG![Ie|  
if ((mid - l) >= THRESHOLD) \u04m}h]  
mergeSort(data, temp, l, mid); %k<+#j6ZH  
else 39MOqVc  
insertSort(data, l, mid - l + 1); hXvC>ie(i  
if ((r - mid) > THRESHOLD) ;66{S'*[  
mergeSort(data, temp, mid + 1, r); 3-oKY*jO  
else [)?9|yY"`  
insertSort(data, mid + 1, r - mid); J:J/AgJuH  
fda4M  
for (i = l; i <= mid; i++) { ii&ckg>]z  
temp = data; 4]FS jVO  
} !Na@T]J  
for (j = 1; j <= r - mid; j++) { 6v74mIRn'?  
temp[r - j + 1] = data[j + mid]; 2I|lY>Z  
} v}id/brl  
int a = temp[l]; 8H1&=)M=  
int b = temp[r]; QeN7~ J  
for (i = l, j = r, k = l; k <= r; k++) { rp^:{6O  
if (a < b) { re,}}'  
data[k] = temp[i++]; aK_k'4YTm  
a = temp; }u1h6rd `  
} else { 'Fc$?$c\  
data[k] = temp[j--]; byTH SRt  
b = temp[j]; gLY15v4?  
} @=%g{  
} 6Eus_aP  
} jcjl q-x  
7{l~\] 6d  
/** 8)2M%R\THn  
* @param data OO'zIC<z  
* @param l Ms5R7<O.7  
* @param i _ 2)QL  
*/ ?o`:V|<v  
private void insertSort(int[] data, int start, int len) { R](cko=  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); }#2(WHf =<  
} Q,Y^9g"B`~  
} E^A!k=>  
} >vR2K^  
} 6$kh5$[  
q: X^V$`  
堆排序: 3[m2F O,Z  
=GW[UnO  
package org.rut.util.algorithm.support; ggrkj0  
lIZ&' z  
import org.rut.util.algorithm.SortUtil; x6$3 KDQm  
8F'm#0  
/** s}yN_D+V  
* @author treeroot TA8  
* @since 2006-2-2 O OXP1L  
* @version 1.0 -%Ce  
*/ =d iGuI B  
public class HeapSort implements SortUtil.Sort{ rg=Ym.  
K`j:F>b  
/* (non-Javadoc) ,b5vnW\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 6'x3g2C/  
*/ g3yZi7b5FU  
public void sort(int[] data) { Gm3`/!r  
MaxHeap h=new MaxHeap(); B#}EYY  
h.init(data); mxu!$wx  
for(int i=0;i h.remove(); yhI;FNSf  
System.arraycopy(h.queue,1,data,0,data.length); ]rNxvFN*j  
} lgD %  
t @a&&  
private static class MaxHeap{ :t;i2Ck  
-3y  
void init(int[] data){ V#+F*w?&D  
this.queue=new int[data.length+1]; VS!v7-_N5  
for(int i=0;i queue[++size]=data; kBnb9'.A1  
fixUp(size); Rlm28  
} HuK Ob4g  
} g$vOWSI +  
3xmPY.  
private int size=0; i2;,\FI@t%  
a#x@ e?GvI  
private int[] queue; 'cAS>s"$}V  
G:wO1f6  
public int get() { ]"htOO  
return queue[1]; (_+ux1h6^  
} H0yM`7[y  
IS`ADDU[S  
public void remove() { (d* | |"  
SortUtil.swap(queue,1,size--); WTjmU=<\  
fixDown(1); 8<32(D{  
} %o0H#7'  
file://fixdown e**'[3Y  
private void fixDown(int k) { g6S-vSX,  
int j; &3x da1H  
while ((j = k << 1) <= size) { <OJqeUo+*\  
if (j < size %26amp;%26amp; queue[j] j++; &&m1_K  
if (queue[k]>queue[j]) file://不用交换 =vriraV"  
break; :S7[<SwL  
SortUtil.swap(queue,j,k); fF=tT C  
k = j; 4L4u<  
} \" m&WFm  
} Lxv_{~I*  
private void fixUp(int k) { 1,U)rx$H  
while (k > 1) { ,S@B[+VZ  
int j = k >> 1; g:U -kK!i  
if (queue[j]>queue[k]) =NnG[#n%  
break; Ol>/^3 a=  
SortUtil.swap(queue,j,k); /11CC \  
k = j; a1[J>  
} >Rb jdM5K4  
} ~Ga{=OM??  
\_i22/Et  
} ! L3|5:j  
7 s2*VKr  
} /^I!)|At  
d-W*`:Q  
SortUtil: kGakdLl  
npbf>n^R  
package org.rut.util.algorithm; f8UO`*O  
dldS7Q  
import org.rut.util.algorithm.support.BubbleSort; qLKL*m  
import org.rut.util.algorithm.support.HeapSort; \yLFV9P}EL  
import org.rut.util.algorithm.support.ImprovedMergeSort; %\)AT"  
import org.rut.util.algorithm.support.ImprovedQuickSort; ymnK`/J!Q  
import org.rut.util.algorithm.support.InsertSort; 1|>bG#|  
import org.rut.util.algorithm.support.MergeSort; hw)z]  
import org.rut.util.algorithm.support.QuickSort; G Uh<AG*+  
import org.rut.util.algorithm.support.SelectionSort; =*>.z@WQ  
import org.rut.util.algorithm.support.ShellSort; {~(XO@;b  
a"Ly9ovW  
/** \8vZZt  
* @author treeroot |%3>i"Y@AK  
* @since 2006-2-2 u09D`QPP]  
* @version 1.0 KF!d?  
*/ iV\*7  
public class SortUtil { :`<MlX  
public final static int INSERT = 1; <KStl fX  
public final static int BUBBLE = 2; <A`SC;k\u  
public final static int SELECTION = 3; km`";gUp>  
public final static int SHELL = 4; @ Yo*h"s  
public final static int QUICK = 5; 9\kEyb$F=  
public final static int IMPROVED_QUICK = 6; 04}c_XFFE  
public final static int MERGE = 7; Y;dqrA>@  
public final static int IMPROVED_MERGE = 8; ]~ S zb  
public final static int HEAP = 9; nf:wJ-;*  
2uF'\y  
public static void sort(int[] data) { {W%XS E  
sort(data, IMPROVED_QUICK); "avG#rsH  
} R?}%rP+^e  
private static String[] name={ E5*pD*#  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" \Il?$Kb/  
}; c`\qupnY  
/N./l4D1K-  
private static Sort[] impl=new Sort[]{ p6Ia)!xOGF  
new InsertSort(), BE0Xg  
new BubbleSort(), %;Z_`W  
new SelectionSort(), "{~^EQq,  
new ShellSort(), J'L6^-gV  
new QuickSort(), SaRn>n\  
new ImprovedQuickSort(), Q#&6J=}  
new MergeSort(), gzlRK^5  
new ImprovedMergeSort(), N%=,S?b  
new HeapSort() >{Xyl):  
}; @B?'Mu*  
tdp>vI!  
public static String toString(int algorithm){ /L2.7`5  
return name[algorithm-1]; Fa{[kJ8z  
} "1p, r&}  
KmWd$Qy,  
public static void sort(int[] data, int algorithm) { KR%NgV+}!0  
impl[algorithm-1].sort(data); 'mF&`BN}b  
} *w6F0>u  
o+- 0`!yj  
public static interface Sort { |f$gQI!XW  
public void sort(int[] data); ]9w TAb  
} (I{+ %  
azRp4~2?  
public static void swap(int[] data, int i, int j) { S]4!uv^y  
int temp = data; N,F[x0&?  
data = data[j]; 5UG"i_TC  
data[j] = temp; (tiE%nF+  
} 6.|[;>Km  
} .5A .[ZY)  
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