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
  • 5328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。 @Ja8~5:  
插入排序: )KLsa`RV:  
G`HL^/Z*  
package org.rut.util.algorithm.support; bqt*d)$  
tsA+B&R_]  
import org.rut.util.algorithm.SortUtil; VYZkHjj)2i  
/** :z!N_]t  
* @author treeroot 4,|A\dXE  
* @since 2006-2-2 Evn=3Tw  
* @version 1.0 Z$? Ql@M  
*/ dw v(8  
public class InsertSort implements SortUtil.Sort{ 8,,$C7"EP  
?T(>!m  
/* (non-Javadoc) 6O>GVJbw  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fb8t9sAI  
*/ (IXe5 55  
public void sort(int[] data) { Q/,bEDc&  
int temp; U Ux]  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); c_fx,; ;  
} -U?Udmov  
} Eo$7W5h J  
} WmRx_d_  
x}W,B,q  
} %\ i 7  
9;^r  
冒泡排序: lKd+,<  
\P;%fN  
package org.rut.util.algorithm.support; WUM&Lq k"  
%U&O \GB  
import org.rut.util.algorithm.SortUtil; DUk&`BSJ  
LH4!QDK-  
/** -o8H_MR  
* @author treeroot ?Sq?f?  
* @since 2006-2-2 HD(4Ms  
* @version 1.0 3K/32Wi  
*/ cGhnI&  
public class BubbleSort implements SortUtil.Sort{ ,{HxX0  
@,<@y>m7  
/* (non-Javadoc) _JZw d9K  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) W -Yv0n3  
*/ cViEvS r  
public void sort(int[] data) { Vs-])Q?7J  
int temp; 3Ms ` ajJ  
for(int i=0;i for(int j=data.length-1;j>i;j--){ +ou ]|  
if(data[j] SortUtil.swap(data,j,j-1); xm }9(EJ  
} KV Vo_9S'  
} (3DjFT3 w  
} "eq{_4dL  
} @?$x  
<6]TazW?S  
} +mQMzZZTZ  
9y(75Bn9  
选择排序: R&cOhUj22J  
y mdZ#I-  
package org.rut.util.algorithm.support; $r`^8/Mq3  
WB2An7i@"{  
import org.rut.util.algorithm.SortUtil; IcM99'P(  
ad "yo=%1  
/** )Jx+R ;Z  
* @author treeroot )T1U!n?^x  
* @since 2006-2-2 Q`"gKBN1  
* @version 1.0 QkXnXu  
*/ }Km+5'G'U  
public class SelectionSort implements SortUtil.Sort { E880X<V)>  
e6C;A]T2E  
/* ,GB~Cmc1<Q  
* (non-Javadoc) jP?YV  
* nyyKA_#:5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) t6GL/M4  
*/ )[d?&GK  
public void sort(int[] data) { 9 )1 8  
int temp; 2lVJ"jg  
for (int i = 0; i < data.length; i++) { /;7\HZ$@/  
int lowIndex = i; ~c&ygL3  
for (int j = data.length - 1; j > i; j--) { 3;@/`Z_\lt  
if (data[j] < data[lowIndex]) { sb Wn1 T U  
lowIndex = j; >wz& {9ni  
} Gkz\By  
} >h^CC*&'pw  
SortUtil.swap(data,i,lowIndex); u^DfRd&P0  
} LUGyc( h  
} D# ZzhHHP  
Y}<w)b1e|  
} uhi(Gny.  
J*Dt\[X  
Shell排序: c418TjO;  
J1@X6U!{  
package org.rut.util.algorithm.support; UF3g]>*  
~=$0=)c  
import org.rut.util.algorithm.SortUtil; J9!}8uD  
)-D{]>8  
/** C` s  
* @author treeroot ; B4x>  
* @since 2006-2-2 ldd|"[Ds  
* @version 1.0 {}r#s>  
*/ : GVyY]qBU  
public class ShellSort implements SortUtil.Sort{ :fo.9J  
,$i2vGd  
/* (non-Javadoc) q]%eLfC(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HeV6=&#  
*/ N03)G2  
public void sort(int[] data) { tPv3nh  
for(int i=data.length/2;i>2;i/=2){ dQX<X}  
for(int j=0;j insertSort(data,j,i); 5*M3sN  
} pKeK6K\8  
}  -&N^S?  
insertSort(data,0,1); ,8~q nLy9  
} 'Z(KE2&?  
?T]` X  
/** 6n[O8^  
* @param data 'R'P^  
* @param j Yp*Dd}n`  
* @param i uY{zZ4iw  
*/ }BTK+Tk8  
private void insertSort(int[] data, int start, int inc) { s"hSn_m  
int temp; W6~aL\[  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ['<Q402:.  
} #~3$4j2U(y  
} iME )Jl&  
} !V<c:6"  
YJBlF2uD  
} s|p,UK  
1~J:hjKQ  
快速排序: DdU T"%  
(T290a9y>  
package org.rut.util.algorithm.support; MK"p~b0->  
Gi=sJV  
import org.rut.util.algorithm.SortUtil; Ue:LKK1Gsr  
vBFMne1h  
/** Pu|PIdu!08  
* @author treeroot (R'GrN>  
* @since 2006-2-2 g8=j{]~C  
* @version 1.0 }> q%##<n  
*/ Uq}FrK}  
public class QuickSort implements SortUtil.Sort{ ??\1eo2gB  
41-u*$   
/* (non-Javadoc) g0Rny  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ss{y=O%9"  
*/ #$-zg^  
public void sort(int[] data) { *d~).z)  
quickSort(data,0,data.length-1); b-)m'B}`  
} HuVx^y` @  
private void quickSort(int[] data,int i,int j){ = aO1uC|6C  
int pivotIndex=(i+j)/2; kn$2_I9  
file://swap s5`CV$bz  
SortUtil.swap(data,pivotIndex,j); !hMD>B2Z  
a ~  
int k=partition(data,i-1,j,data[j]); !?AgAsSmc  
SortUtil.swap(data,k,j); V-1H(wRu  
if((k-i)>1) quickSort(data,i,k-1); 5|nT5oS  
if((j-k)>1) quickSort(data,k+1,j); 4q9+a7@  
%-lilo   
} c0 I;8z`b  
/** %S`ygc}|  
* @param data e8Ul^]  
* @param i U z*7J  
* @param j MNuBZnO  
* @return EgE% NY~  
*/ I{/}pr>  
private int partition(int[] data, int l, int r,int pivot) { 3np |\i  
do{ n]%T>\gw  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 5`_UIYcI  
SortUtil.swap(data,l,r); '' Pu  
} 9$ VudE>;  
while(l SortUtil.swap(data,l,r); TnuaP'xZ  
return l; [:hTwBRF  
} sKg IKYG}T  
DB=^Z%%Z  
} }s@ i  
\!51I./Q/  
改进后的快速排序: /8cfdP Ba  
GbXa=* <-<  
package org.rut.util.algorithm.support; l:@`.'-=  
0: 1[F!]'b  
import org.rut.util.algorithm.SortUtil; &c AFKYt  
EDDld6O,  
/** ;bYpMcH  
* @author treeroot 8|cQW-L  
* @since 2006-2-2 [-5l=j r  
* @version 1.0  ~ERA  
*/ TPBL|^3K  
public class ImprovedQuickSort implements SortUtil.Sort { r_"=DLx6  
bMA\_?  
private static int MAX_STACK_SIZE=4096; U } K]W>Z  
private static int THRESHOLD=10; ,J@A5/B,AA  
/* (non-Javadoc) 6L/`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) mXSs:FqE!  
*/ @cS(Bb!(M  
public void sort(int[] data) { >;sz(F3)  
int[] stack=new int[MAX_STACK_SIZE]; dED&-e#  
vY"i^a`f  
int top=-1; 'NAC4to;;  
int pivot; {Mv$~T|e7  
int pivotIndex,l,r; .UGbo.e  
 Qi;62M  
stack[++top]=0; Ya*<me>`  
stack[++top]=data.length-1; mNQ~9OJ1  
nb30<h  
while(top>0){ 0en Bq>vr  
int j=stack[top--]; Pb] EpyAW  
int i=stack[top--]; {qJ(55  
x:? EL)(  
pivotIndex=(i+j)/2; W2w A66MB  
pivot=data[pivotIndex]; IaHu$` v  
NMvNw?]  
SortUtil.swap(data,pivotIndex,j); d#U~>wr  
UhX)?'J  
file://partition Zk+c9,q  
l=i-1; `9`T,uJe  
r=j; qS!U1R?s  
do{ fG,)`[eD!_  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); m\.(-  
SortUtil.swap(data,l,r); }8LTYn  
} Z.%0yS_T  
while(l SortUtil.swap(data,l,r); P+Q}bTb8  
SortUtil.swap(data,l,j); y5/LH~&Ov  
Hp(wR'(g&  
if((l-i)>THRESHOLD){ NY3/mS3w  
stack[++top]=i; bH Nf>  
stack[++top]=l-1; >(\Z-I&YQ  
} lc(}[Z/|V  
if((j-l)>THRESHOLD){ Gl6M(<f\5  
stack[++top]=l+1; (7 O?NS  
stack[++top]=j; 8-s7s!j  
} =M."^X  
"nA~/t=  
} 8dUP_t~d#q  
file://new InsertSort().sort(data); ?ZAynZF|#  
insertSort(data); C@P*:L_  
} %jh gKq  
/** G6XDPr:}  
* @param data Vpe\Okt:  
*/ %0_}usrsk  
private void insertSort(int[] data) { #JYH5:*  
int temp; d "%6S*dL  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ]j+J^g  
} ,382O$C  
} le150;7  
} ^JY,K  
pmuT7*<19  
} yt {?+|tXU  
)1E#'v12 "  
归并排序: Ca}V5O  
H{,qw%.|KA  
package org.rut.util.algorithm.support; ^US ol/  
s(8e)0Tl  
import org.rut.util.algorithm.SortUtil; '&!:5R59  
c2Yrg@) [  
/** v 8B4%1NE  
* @author treeroot -+z8bZ  
* @since 2006-2-2 zF@ /8#  
* @version 1.0 uhvn1"  
*/ o#QS: '|  
public class MergeSort implements SortUtil.Sort{ @ruWnwb  
y41~  
/* (non-Javadoc) h1+y.4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) NRMEZ\*L  
*/ !%(PN3*  
public void sort(int[] data) { Ya29t 98Pk  
int[] temp=new int[data.length]; Jy P$'v~  
mergeSort(data,temp,0,data.length-1); 0gsRBy  
} Nz%Yi?AF  
oR~s \Gt  
private void mergeSort(int[] data,int[] temp,int l,int r){ $6~t|[7:%Y  
int mid=(l+r)/2; P{2j31u`  
if(l==r) return ; i'3)5  
mergeSort(data,temp,l,mid); b6d}<b9#  
mergeSort(data,temp,mid+1,r); 7qL B9r  
for(int i=l;i<=r;i++){ I#:Dk?"O2  
temp=data; S#b)RpY  
} sf Zb$T J  
int i1=l; XaH;  
int i2=mid+1; X@\ 9}*9  
for(int cur=l;cur<=r;cur++){ YM&i  
if(i1==mid+1) f>[{1M]n\  
data[cur]=temp[i2++]; ?D+H2[n\a  
else if(i2>r) _BI[F m  
data[cur]=temp[i1++]; : U,-v  
else if(temp[i1] data[cur]=temp[i1++]; 30b dcDm,  
else l9z{pZ\KM  
data[cur]=temp[i2++]; X }Fqif4A  
} NL-V",gI-~  
} Y'Yu1mH)  
5Bp>*MR/".  
} &HtG&RvQf  
/pL'G`  
改进后的归并排序: w3FEX$`_  
D77s3AyHK  
package org.rut.util.algorithm.support; "eIE5h  
SedVp cb+  
import org.rut.util.algorithm.SortUtil; +R',$YzD  
^+O97<#6C  
/** B=HE i\55K  
* @author treeroot %+oV-o\ #A  
* @since 2006-2-2 =}%Q}aPp  
* @version 1.0 y]}N [l  
*/ br')%f}m  
public class ImprovedMergeSort implements SortUtil.Sort { ?nwg.&P  
qT^0 %O:  
private static final int THRESHOLD = 10; "4L_BJZ  
'H(khS  
/* :8U@KABH@h  
* (non-Javadoc) 2Yg\<Ps N  
* Uy<n7*H  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0RHjA& r3v  
*/ )CD-cz6n  
public void sort(int[] data) { )v %tyU  
int[] temp=new int[data.length]; 11B8 LX  
mergeSort(data,temp,0,data.length-1); w" Y'I$  
} `V{'GF&[  
j/uzsu+  
private void mergeSort(int[] data, int[] temp, int l, int r) { a*qc  
int i, j, k; W#foVAi .  
int mid = (l + r) / 2; QPX3a8w*  
if (l == r) i2Sh^\Xw  
return; EMf"rGXu(  
if ((mid - l) >= THRESHOLD) w0 1u~"E  
mergeSort(data, temp, l, mid); (^$SM uC  
else @@& ? ,3  
insertSort(data, l, mid - l + 1); {-51rAyi  
if ((r - mid) > THRESHOLD) $AHdjQ[;6-  
mergeSort(data, temp, mid + 1, r); fJ;1ii~  
else pg3h>)$/  
insertSort(data, mid + 1, r - mid); \9 k3;zw  
FO)`&s"&2  
for (i = l; i <= mid; i++) { wu3p2#-Z  
temp = data; wRJ`RKJ-T  
} 9'A^n~JHF  
for (j = 1; j <= r - mid; j++) { [_HOD^  
temp[r - j + 1] = data[j + mid]; 3aFD*S  
} gp4@6HuUd  
int a = temp[l]; 5UvqE_  
int b = temp[r]; _+d*ljP)l3  
for (i = l, j = r, k = l; k <= r; k++) { xzBUm  
if (a < b) { :z2G a  
data[k] = temp[i++]; +THK Jn!>  
a = temp; c3J12+~;  
} else { <%m$ V5h  
data[k] = temp[j--]; Z L'krV  
b = temp[j]; Rw|P$dbu  
} +0M0g_sk  
} S6{u(= H  
} h"dn:5G:=  
N a<);Pg  
/** Mh=j^ [4Q  
* @param data w\ddC DZ  
* @param l R/kF,}^F  
* @param i  6Ok]E`  
*/ lbC9^~T+  
private void insertSort(int[] data, int start, int len) { /|8/C40aY  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); <X ([VZ  
} z0?IQzR^T  
} zE?@_p1gei  
} Ie/dMB=t  
} ;ibOd~  
Zn6u6<O=  
堆排序: '6GW.;  
c:2LG_mQ  
package org.rut.util.algorithm.support; [#;CBs5o  
O|*-J  
import org.rut.util.algorithm.SortUtil; ;Mz7emt  
\`-a'u=S  
/** G.>Ul)O:a  
* @author treeroot /-Nq DRmJ  
* @since 2006-2-2 <P#:dS%r  
* @version 1.0 [I=1   
*/ F_~A8y  
public class HeapSort implements SortUtil.Sort{ Z |<  
sZ#U{LI  
/* (non-Javadoc) Dq`$3ZeA  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) y':65NMda  
*/ B[fbPrM  
public void sort(int[] data) { )^m"fQ+  
MaxHeap h=new MaxHeap(); w-LaSJ(T  
h.init(data); CM;B{*En  
for(int i=0;i h.remove(); ) h=[7}|  
System.arraycopy(h.queue,1,data,0,data.length); cnj32H^+  
} =21m|8c  
K$5mDScoJ  
private static class MaxHeap{ t"X^|!hKIF  
[!U! Z'i  
void init(int[] data){ N_?15R7h  
this.queue=new int[data.length+1]; >`I%^+ z  
for(int i=0;i queue[++size]=data; HH|N~pBJB  
fixUp(size); Uac.8wQh  
} ?4#wVzuzA  
} \12y,fOJ  
v>sjS3  
private int size=0; UP*5M  
?P(U/DS8  
private int[] queue; @# GS4I  
8Od7e`  
public int get() { U;LX"'}  
return queue[1]; x2tcr+o  
} :\~YbA  
8BX9JoDi  
public void remove() { vo^2k13  
SortUtil.swap(queue,1,size--); K?*p|&Fi?8  
fixDown(1); g:Ry.=F7W  
} 4f'!,Q ;  
file://fixdown YtA<4XHU  
private void fixDown(int k) { #aIV\G  
int j; K/z2.Npn  
while ((j = k << 1) <= size) { 8JU{]Z!G<;  
if (j < size %26amp;%26amp; queue[j] j++; [vOk=  
if (queue[k]>queue[j]) file://不用交换 $~NB .SY  
break; .-GC,&RO  
SortUtil.swap(queue,j,k); S>y}|MG  
k = j; iO7s zi  
} CRu {Ie5B  
} %:\GYs(Y  
private void fixUp(int k) { A}_0iwG  
while (k > 1) { VbX$\Cs:  
int j = k >> 1; EXti  
if (queue[j]>queue[k]) Ys8D|HIk  
break; uLrZl0%HT~  
SortUtil.swap(queue,j,k); >9t+lr1   
k = j; a"phwCc"%  
} Z5,"KhB]  
} JdX!#\O  
t!o=-k  
} K9) |b`E=  
.7> g8  
} bZu2.?{  
tkW7wP;  
SortUtil: 9 !s)52qt  
|l:,EA_v|  
package org.rut.util.algorithm; fHXz{,?/w  
U _~r0  
import org.rut.util.algorithm.support.BubbleSort; 8}?w %FsN#  
import org.rut.util.algorithm.support.HeapSort; fk\hrVP  
import org.rut.util.algorithm.support.ImprovedMergeSort;  jRhRw;  
import org.rut.util.algorithm.support.ImprovedQuickSort; "89L^I  
import org.rut.util.algorithm.support.InsertSort; ESnir6HoU  
import org.rut.util.algorithm.support.MergeSort; Vn?|\3KY  
import org.rut.util.algorithm.support.QuickSort; 69N8COLB  
import org.rut.util.algorithm.support.SelectionSort; >Y;[+#H[  
import org.rut.util.algorithm.support.ShellSort; ~z7Fz"o<  
B !Z~jT  
/** <%S[6*6U  
* @author treeroot o^Qy71Uj  
* @since 2006-2-2 '25zb+ -  
* @version 1.0 <=@6UPsn2  
*/ Xw&vi\*m  
public class SortUtil { CIAKXYM  
public final static int INSERT = 1; $>hH{  
public final static int BUBBLE = 2; ORFi0gFbA  
public final static int SELECTION = 3; mX G W+  
public final static int SHELL = 4; tD> qHR  
public final static int QUICK = 5; D:PrFa  
public final static int IMPROVED_QUICK = 6; 6k;>:[p  
public final static int MERGE = 7; B*n_ VBd  
public final static int IMPROVED_MERGE = 8; L\\'n )  
public final static int HEAP = 9;  ja^  
$"fO/8Ex  
public static void sort(int[] data) { j){0>O.V  
sort(data, IMPROVED_QUICK); PKYm{wO-  
} U%KsD 4B  
private static String[] name={ fDwqu.K  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ;upYam"  
}; )zu m.6pT  
\:E=B1  
private static Sort[] impl=new Sort[]{ OhTd>~R`<  
new InsertSort(), GP_%. fO\M  
new BubbleSort(), ;9hS_%ldX4  
new SelectionSort(), *ch7z|wo.  
new ShellSort(), G@rV9  
new QuickSort(), fT5vO.a  
new ImprovedQuickSort(), nBzju?X)I  
new MergeSort(), rDC=rG  
new ImprovedMergeSort(), ,{BF`5bn|  
new HeapSort() wSG!.Ejc7  
}; D9\ EkX  
tW%!|T5/  
public static String toString(int algorithm){ }ssL;q  
return name[algorithm-1]; O@-(fyG  
} c? >;UzM  
i?6#>;f  
public static void sort(int[] data, int algorithm) { dI~{0)s  
impl[algorithm-1].sort(data); .ViOf){U\  
} n(j5dN>]  
HA~BXxa/  
public static interface Sort { !uAqY\Is  
public void sort(int[] data); #f }ORA  
} "(vm0@8><  
t?h\Af4Tf  
public static void swap(int[] data, int i, int j) { 2 xt$w%  
int temp = data; -"d&Ow7o  
data = data[j]; kD#hfYs)i  
data[j] = temp; D()tP  
} Vs, &  
} .]ZMxDZ  
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
如果您在写长篇帖子又不马上发表,建议存为草稿
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八