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
  • 8021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。 aI;-NnC  
插入排序: Mqv[7.|  
K*S3{s%UR  
package org.rut.util.algorithm.support; #g=  
z}w7X6&e  
import org.rut.util.algorithm.SortUtil; #pcgfVl  
/** W`v$-o-  
* @author treeroot @8*lqV2  
* @since 2006-2-2 #+#^cqjZ  
* @version 1.0 AF\Jh+ynT!  
*/ 0TWd.+  
public class InsertSort implements SortUtil.Sort{ g5:?O,?  
Z@,[a  
/* (non-Javadoc) sm"s2Ci=}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,0a\Ka {^  
*/ * }) W>  
public void sort(int[] data) { 7!Qu+R  
int temp; Z0%:j\W4c  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 4i7+'F  
} 49.B!DqQW&  
} %X|u({(zb  
} ?W2u0N  
+}R#mco5K  
} -nXlW  
}Xvm( ;  
冒泡排序: %+^Qs\j  
`vZX"+BAh  
package org.rut.util.algorithm.support; Y'C1L4d  
m~0Kos%^*b  
import org.rut.util.algorithm.SortUtil; d}Q% I  
=;Dj[<mJ45  
/** ly:2XvV3~  
* @author treeroot T~L&c  
* @since 2006-2-2 e|N~tUVrrN  
* @version 1.0 >L ')0<!&  
*/ LXqPNVp#  
public class BubbleSort implements SortUtil.Sort{ EF6h>"']/  
Cxeam"-HTt  
/* (non-Javadoc) H*e+ 2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +z 4E:v  
*/ &`oybm-p(  
public void sort(int[] data) { h4#'@%   
int temp; 1mD)G55Ep  
for(int i=0;i for(int j=data.length-1;j>i;j--){ dci<Rz`h  
if(data[j] SortUtil.swap(data,j,j-1); 5th?m>  
} [ ou$*  
} y @S_CB 47  
} iX[g  
} MU%7'J :_  
v7 n@CWnN  
} F1A40h7R$Y  
1ktxG1"1  
选择排序: $<AaeyR!N  
Q':hmulT!  
package org.rut.util.algorithm.support; o7 t{?|  
5 owK2  
import org.rut.util.algorithm.SortUtil; bQ(-M:  
rr,w/[  
/** \<ysJgqUG  
* @author treeroot ^e =G} N^  
* @since 2006-2-2 gB~^dv {  
* @version 1.0 ?~b(iZ  
*/ hHHQmK<r  
public class SelectionSort implements SortUtil.Sort { bf|ePGW?  
)+R n[MMp  
/* @S=9@3m{w;  
* (non-Javadoc) K`2(Q  
* yM~bUmSg  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) FWA?mde  
*/ ]IEZ?+F,  
public void sort(int[] data) { <z\`Ma  
int temp; ?U{<g,^  
for (int i = 0; i < data.length; i++) { ^GyZycch  
int lowIndex = i; }B a_epM  
for (int j = data.length - 1; j > i; j--) { em'ADRxG+  
if (data[j] < data[lowIndex]) { -]+pwZ4g  
lowIndex = j; "F%JZO51  
} [q U v|l1  
} vxHFNGI  
SortUtil.swap(data,i,lowIndex); U (#JC(E-#  
} iGkysU<wcp  
} le]~Cy0  
x x4GP2  
} N#2ldY *  
=YTcWB  
Shell排序: - Z`RKR8C  
3H`{ A/r  
package org.rut.util.algorithm.support; vENf3;o0  
mf)+ 5On  
import org.rut.util.algorithm.SortUtil; pQKSPr  
=MMd&  
/** }z x ~  
* @author treeroot VX&PkGi?o  
* @since 2006-2-2 ),-gy~  
* @version 1.0 )Qd x  
*/ ddyX+.LMk  
public class ShellSort implements SortUtil.Sort{ PO?_i>mA  
r5Tdp)S  
/* (non-Javadoc) A4cOnG,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HA*L*:0  
*/ ,T`,OZm  
public void sort(int[] data) { y?3.W  
for(int i=data.length/2;i>2;i/=2){ ,|B-Nq  
for(int j=0;j insertSort(data,j,i); H#DvCw  
} 8'HS$J;C  
} {eV8h}KIl  
insertSort(data,0,1); `/ayg:WSU  
} P/girce0  
hd u2?v@  
/** 8M@'A5]  
* @param data [d8Q AO1;)  
* @param j tw>2<zmSi%  
* @param i zD79M  
*/ p*&0d@'r  
private void insertSort(int[] data, int start, int inc) { ?UZt30|1  
int temp; ?)y^ [9  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); u }gavG l  
} BUJ\[/  
} GD{L$#i!  
} c&!mKMrk  
acR|X@ \3  
} Cq"KKuf  
hU8Y&R)=9  
快速排序: `om+p?j  
{PcJuRTHB  
package org.rut.util.algorithm.support; U~N7\Pa4  
#uw&u6*\q  
import org.rut.util.algorithm.SortUtil; *L$2M?xkY  
U8w_C\Q  
/** E5d$n*A  
* @author treeroot Z0jgUq`r  
* @since 2006-2-2 $Sgf jm  
* @version 1.0 +t+<?M B  
*/ w8UuwFG?<  
public class QuickSort implements SortUtil.Sort{ r8Mx +r  
fq]PKLW'  
/* (non-Javadoc) .mt%8GM  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |zYOCDFf  
*/ { K]5[bMT  
public void sort(int[] data) { {O^u^a\m  
quickSort(data,0,data.length-1); |4Q*4s  
} 9)ALJd,M  
private void quickSort(int[] data,int i,int j){ )ODF6Ag  
int pivotIndex=(i+j)/2; ]~KLdgru_  
file://swap _XV%}Xb'  
SortUtil.swap(data,pivotIndex,j); vRmn61  
jdP )y]c  
int k=partition(data,i-1,j,data[j]); XiE`_%NW  
SortUtil.swap(data,k,j); t>I.1AS  
if((k-i)>1) quickSort(data,i,k-1); iqQT ^  
if((j-k)>1) quickSort(data,k+1,j); 8w&-O~M  
$/++afi m  
} _`|1B$@x  
/** '6#G$  
* @param data (~=.[Y  
* @param i En?V\|,  
* @param j 0N.h:21(4  
* @return !hBpon  
*/ Yf w>x[#e  
private int partition(int[] data, int l, int r,int pivot) { ?m |}}a  
do{ ["Ltqgx  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 2T~cOH;T  
SortUtil.swap(data,l,r);  ?pTX4a&>  
} D(#f`Fj;  
while(l SortUtil.swap(data,l,r); G@[8P?M=Z  
return l; mll :rWC)  
} _h~ksNm5u  
0 =j }`  
} qN)y-N.LI(  
~#A}=, 4>  
改进后的快速排序: &9p!J(C  
Z<-_Y]4j  
package org.rut.util.algorithm.support; ~&i4FuK  
` p\=NP!n  
import org.rut.util.algorithm.SortUtil; |h>PUt@LL  
J:L+q} A  
/** s[yWBew  
* @author treeroot Cbw *? 9d  
* @since 2006-2-2 (^d7K:-'  
* @version 1.0 Je1d|1!3  
*/ jxh:z  
public class ImprovedQuickSort implements SortUtil.Sort { WQK<z!W5  
m+kP"]v  
private static int MAX_STACK_SIZE=4096; {^VtD  
private static int THRESHOLD=10; }TmOoi(X@  
/* (non-Javadoc) ~~tTr $  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) U(#<D7}  
*/ {ez $kz  
public void sort(int[] data) { `>gG"1,]  
int[] stack=new int[MAX_STACK_SIZE]; 5p;AON  
'o >)E>  
int top=-1; K}~$h,n  
int pivot; ;b$P*dSG}  
int pivotIndex,l,r; Dqx#i-L23  
_ E;T"SC  
stack[++top]=0; Zv u6/#  
stack[++top]=data.length-1; Z/#_Swv  
Z*%;;&?  
while(top>0){ RP4/:sO  
int j=stack[top--]; yB b%#GW  
int i=stack[top--]; /`*{57/3  
=}^NyLE?  
pivotIndex=(i+j)/2; eU yF<j  
pivot=data[pivotIndex]; Jl Do_}  
^\\3bW9}H  
SortUtil.swap(data,pivotIndex,j); (#Y~z',I  
Z'z)Oo  
file://partition ToXWFX  
l=i-1; `fu_){  
r=j; @I _cwUO  
do{ Dyo v}y  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ) r2Y@+.FN  
SortUtil.swap(data,l,r); _bFUr  
} M";qo6  
while(l SortUtil.swap(data,l,r); p4' .1.@  
SortUtil.swap(data,l,j); +)Z]<O  
fE#(M+(<  
if((l-i)>THRESHOLD){ ')X (P>  
stack[++top]=i; CVj^{||eF  
stack[++top]=l-1; $~/2!T_  
} ;O"?6d0  
if((j-l)>THRESHOLD){ TR"C<&y$j  
stack[++top]=l+1; 3[YG BM(  
stack[++top]=j; @T'^V0!-q:  
} \iuR+I  
lSj gN~:z  
} 7aG.?Ca%  
file://new InsertSort().sort(data); ]K=#>rZrB  
insertSort(data); ( ;FxKm<P@  
} D JP6Z  
/** $@g]?*L:  
* @param data ~6[?=mOi'  
*/ ]P4WfV d  
private void insertSort(int[] data) { R=D]:u<P  
int temp; Njq}M/{U  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); wu41Mz7  
} vwCQvt  
} L.Y3/H_  
} 8Sbz)X  
[);oj<  
} DiCz%'N  
z+"tAVB[i  
归并排序: uZqL'l+/y  
X8Z?G,[H  
package org.rut.util.algorithm.support; t*{L[c9.Uq  
U( YAI%O  
import org.rut.util.algorithm.SortUtil; +&GV-z~o  
#NS|9jW  
/** ]z'&oz  
* @author treeroot =~D? K9o  
* @since 2006-2-2 iSW2I~PD  
* @version 1.0 L 4By5)  
*/ o3J#hQrl  
public class MergeSort implements SortUtil.Sort{ dbp\tWaW  
:6n#y-9^1  
/* (non-Javadoc) E)"19l|}B  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k[6J;/  
*/ B}e/MlX3M  
public void sort(int[] data) { nzq   
int[] temp=new int[data.length]; m4:c$5  
mergeSort(data,temp,0,data.length-1);  ~?ab_CY  
} ^7gGtz2  
zj 6I:Q r  
private void mergeSort(int[] data,int[] temp,int l,int r){ &i#$ia r  
int mid=(l+r)/2; _y@ 28t  
if(l==r) return ; -IPo/?}  
mergeSort(data,temp,l,mid); <r%K i`u(p  
mergeSort(data,temp,mid+1,r); +;N]34>S7  
for(int i=l;i<=r;i++){ Q@D7 \<t  
temp=data; r $7.  
} &D, Iwq  
int i1=l; d?,'$$aB  
int i2=mid+1; { 3G  
for(int cur=l;cur<=r;cur++){ v 6~9)\!j  
if(i1==mid+1) 222 Y?3>@D  
data[cur]=temp[i2++]; : 4ryi&Y  
else if(i2>r) wk(25(1q  
data[cur]=temp[i1++]; 8-Abg:)  
else if(temp[i1] data[cur]=temp[i1++]; ,OE&e* 1  
else tKbxC>w  
data[cur]=temp[i2++]; /cjz=r1U>  
} %iyc1]w{  
} 1\}vU  
F O!Td  
} 5`;SI36"  
4TtC~#D:  
改进后的归并排序: 3I)~;>meo  
(gt\R}  
package org.rut.util.algorithm.support; iw@rW5%'~  
,jU>V]YC  
import org.rut.util.algorithm.SortUtil; GQ2GcX(E(  
aZ#FKp^8H  
/** rRTKF0+  
* @author treeroot ]so/AdT9hA  
* @since 2006-2-2 m`yvZ4K!  
* @version 1.0 i7x&[b  
*/ "LBMpgpU  
public class ImprovedMergeSort implements SortUtil.Sort { #bOv}1,s  
Q*DT" W/0  
private static final int THRESHOLD = 10; ]OAU&t{  
MZgaQUg  
/* Y teIp'T  
* (non-Javadoc) bnxp[Qk|5  
* Mz@{_*2   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9~SPoR/_0  
*/ _O`prX.:B0  
public void sort(int[] data) { ~ 9>H(c  
int[] temp=new int[data.length]; )CGQ}  
mergeSort(data,temp,0,data.length-1); =RoE=) 1&-  
} r!r08y f  
'+Dsmoy  
private void mergeSort(int[] data, int[] temp, int l, int r) { xIdb9hm<  
int i, j, k; JrP`u4f_  
int mid = (l + r) / 2; E=NjWO  
if (l == r) l`v5e"V  
return; ;-db/$O  
if ((mid - l) >= THRESHOLD) d$ouH%^cGu  
mergeSort(data, temp, l, mid); &RR;'wLoQT  
else WQ|Ufl;  
insertSort(data, l, mid - l + 1); $^x=i;>aK.  
if ((r - mid) > THRESHOLD) Fh~9(Y#  
mergeSort(data, temp, mid + 1, r); Agc ss20.  
else c`E>7Hjr-  
insertSort(data, mid + 1, r - mid); #MC#K{Xd  
5Tsz|k  
for (i = l; i <= mid; i++) { "x$@^  
temp = data; ,&[o:jTk  
} I4Do$&9<D  
for (j = 1; j <= r - mid; j++) { CD1Ma8I8  
temp[r - j + 1] = data[j + mid]; R|?n  
} B`SX3,3  
int a = temp[l]; <spG]Xa<  
int b = temp[r]; x[ A|@\Z  
for (i = l, j = r, k = l; k <= r; k++) { 757&bH|a  
if (a < b) { l)r\SE1  
data[k] = temp[i++]; y-pdAkDh  
a = temp; :zW? O#aL-  
} else { Z$z-Hx@%  
data[k] = temp[j--]; [* xdILj  
b = temp[j]; 7F`\Gz_2  
} qlhc"}5x }  
} fTxd8an{  
} FB k7Cn!  
'4,?YcZ?S  
/** `zoHgn7B9q  
* @param data c |0p'EQ  
* @param l !t%1G.  
* @param i P| NGAd  
*/ 5BrN uR$  
private void insertSort(int[] data, int start, int len) { ju2H 0AQ  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); ZayJllaq^  
}  |Iy;_8c  
} {$S"S j  
} !(*&P  
} m"L^tSD~  
[REH*_  
堆排序: B:>:$LIL  
QPuc{NcB>  
package org.rut.util.algorithm.support; O>E}Lu;|  
{-)^?Zb @  
import org.rut.util.algorithm.SortUtil; Csyh 'v  
6;E3|st1X  
/** /#9P0@Y  
* @author treeroot |=5zI6pT  
* @since 2006-2-2 "8Dm7)nB  
* @version 1.0 lz^Vi!|p  
*/ uh\G6s!4/  
public class HeapSort implements SortUtil.Sort{ 5K Ij}VN  
(N/u@M  
/* (non-Javadoc) =Ti!9_~  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :ok.[q  
*/ 4 95Y<x}=  
public void sort(int[] data) { 65Z}Hf  
MaxHeap h=new MaxHeap(); gX"  
h.init(data); 5Q"yn2b4  
for(int i=0;i h.remove(); bI.hG32  
System.arraycopy(h.queue,1,data,0,data.length); nw+t!C  
} Sr+hB>{  
=1Plu5  
private static class MaxHeap{ C\{A|'l!x  
m9h<)D'>  
void init(int[] data){ ( yLu=  
this.queue=new int[data.length+1]; ) [eTZg  
for(int i=0;i queue[++size]=data; qt:B]#j@  
fixUp(size); xst-zfkH`  
} 5$i(f8*  
} 7,)E1dx -V  
I(UK9H{0$  
private int size=0; 0Hrvr  
OcB&6!1u  
private int[] queue; rzdQLan  
qFVZhBC  
public int get() { j6s j2D  
return queue[1]; Z71_D  
} {~&]  
V 2Xv)  
public void remove() { Zl[EpXlZ  
SortUtil.swap(queue,1,size--); "tT4Cb3  
fixDown(1); PU%Zay  
} R(t%/Hvs$  
file://fixdown vdXi'<  
private void fixDown(int k) { \HxF?i "   
int j; RZEq@q  
while ((j = k << 1) <= size) { zMepF]V  
if (j < size %26amp;%26amp; queue[j] j++; N75U.;U0  
if (queue[k]>queue[j]) file://不用交换 <j,I@%  
break; HFB>0<$  
SortUtil.swap(queue,j,k); e'~Qe_  
k = j; Uhu?G0>O  
} SN|!FW.*:  
} C;ab-gh  
private void fixUp(int k) {  }<kl3{)  
while (k > 1) { ;0Ua t  
int j = k >> 1; N[9o6Nl|a  
if (queue[j]>queue[k]) RrLj5Jq  
break; j7d^g a-`  
SortUtil.swap(queue,j,k); xJ#O|7N  
k = j; 5X8 i=M;  
} ]G&[P8hz B  
} 'h ?  
/@Jg [na  
} ^G qO>1U  
xqdkc^b  
} krGIE}5  
`?T::&`  
SortUtil: YS4"TOFw  
Q?hf2iw  
package org.rut.util.algorithm; %#fjtbeB  
ka=A:biz  
import org.rut.util.algorithm.support.BubbleSort; 1/bTwzR.g  
import org.rut.util.algorithm.support.HeapSort; &R/-~w5  
import org.rut.util.algorithm.support.ImprovedMergeSort;  Jj%xLv%  
import org.rut.util.algorithm.support.ImprovedQuickSort; F.(W`H*1+  
import org.rut.util.algorithm.support.InsertSort; gWro])3  
import org.rut.util.algorithm.support.MergeSort; m, +E5^  
import org.rut.util.algorithm.support.QuickSort; K}q5,P(  
import org.rut.util.algorithm.support.SelectionSort; },<Y \  
import org.rut.util.algorithm.support.ShellSort; ZC$u8$+P  
n[BYBg1yG  
/** lB_4jc  
* @author treeroot nzO -\`40  
* @since 2006-2-2 Mg0ai6KD  
* @version 1.0 f:nXE&X[  
*/ UQhD8Z'I.  
public class SortUtil { @WXRZEz  
public final static int INSERT = 1; pVl7] _=m  
public final static int BUBBLE = 2; aeYz;&K  
public final static int SELECTION = 3; 2./ z6jXW_  
public final static int SHELL = 4; EWl9rF@I  
public final static int QUICK = 5; ">B&dNrt  
public final static int IMPROVED_QUICK = 6; s o: o b}  
public final static int MERGE = 7; }.u[';q ]S  
public final static int IMPROVED_MERGE = 8; gdAd7 T  
public final static int HEAP = 9; /_JR7BB^X,  
jn]l!nm  
public static void sort(int[] data) { WCaMPz  
sort(data, IMPROVED_QUICK); 6wOj,}2Mn  
} ui"`c%2n  
private static String[] name={ 1C=42ZZ&2  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ^^V+0 l  
}; zWN]#W`  
0LGHSDb  
private static Sort[] impl=new Sort[]{ X+;#^A3  
new InsertSort(), ld%#.~Q  
new BubbleSort(), :\mdVS!o  
new SelectionSort(), <}mA>c'k  
new ShellSort(), U_9|ED:  
new QuickSort(), <%4pvn8d?&  
new ImprovedQuickSort(), sj+ )   
new MergeSort(), TJcHqzcUc  
new ImprovedMergeSort(), PTpfa*t  
new HeapSort() XThU+s9  
}; V[8!ymi0  
e*<pO@Uy  
public static String toString(int algorithm){ YY>&R'3[  
return name[algorithm-1]; 17:7w  
} ?r$& O*;  
G=Xas"|  
public static void sort(int[] data, int algorithm) { 5a5JOl$8  
impl[algorithm-1].sort(data); 4X:mb}(  
} YYe<StyH  
u#ocx[  
public static interface Sort { '*U_!RmQ  
public void sort(int[] data); _0&U'/cs  
} #pD=TMefC  
uYE"O UNWL  
public static void swap(int[] data, int i, int j) { IQ JFL +f  
int temp = data; GB*^?Ii  
data = data[j]; !bW^G} <t  
data[j] = temp; W9GjUswv!  
} Oxi^&f||`  
} AAi4} 8+\  
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
如果您提交过一次失败了,可以用”恢复数据”来恢复帖子内容
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八