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
  • 7603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。 ig7)VKr  
插入排序: 4ehajK  
,iB)8Km@U  
package org.rut.util.algorithm.support; mAX]m1s  
)U`H7\*)  
import org.rut.util.algorithm.SortUtil; kS[k*bN0  
/** ^-f5;B`\i  
* @author treeroot x\3tSP7Vp  
* @since 2006-2-2 _Oh;._PS  
* @version 1.0 _|g(BK2}  
*/ 69`9!heu  
public class InsertSort implements SortUtil.Sort{ H7H'0C  
Gg{@]9  
/* (non-Javadoc) p}}}~ lC/  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _+T;4U' p  
*/ *;1G+Q#  
public void sort(int[] data) { \#lh b  
int temp; hUxpz:U*  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); @$F(({?  
} acRPKTs H  
} jgs kK  
} _C)u#]t  
&YmOXKf7  
} s@'};E^]@r  
gOx4qxy/m|  
冒泡排序: 4&R\6!*s  
v'Tk Kwl  
package org.rut.util.algorithm.support; fu?>O /Gn/  
Mw\/gm_3  
import org.rut.util.algorithm.SortUtil; {o*ziZh  
mO?G[?*\  
/** wGBQ.Ve[  
* @author treeroot GQ$0`?lp  
* @since 2006-2-2 aGr(djD  
* @version 1.0 (t&P. N/  
*/ T=ox;r  
public class BubbleSort implements SortUtil.Sort{ +7|Oy3s  
BO#fzq%  
/* (non-Javadoc) CDO _A\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) MV e5j+8  
*/ q}M^i7IE  
public void sort(int[] data) { C' o4Su#  
int temp; VVYQIR]!yk  
for(int i=0;i for(int j=data.length-1;j>i;j--){ @433?g`2b  
if(data[j] SortUtil.swap(data,j,j-1); TXH: +mc  
} #OJsu  
} 3r%I *  
} b,#cc>76\  
} ahhVl=9/ao  
ygd'Nh!@  
} #D .H2'_}  
A&Ut:OiA  
选择排序: '4L i  
\@*cj8e  
package org.rut.util.algorithm.support; RIC'JLWQ  
c_kxjzA#  
import org.rut.util.algorithm.SortUtil; H \.EK Z  
 h%E25in  
/** j0kEi+!TVq  
* @author treeroot B>o #eW  
* @since 2006-2-2 L_<&oq  
* @version 1.0 }zlvs a+  
*/ 3 ^{U:"N0  
public class SelectionSort implements SortUtil.Sort { 4<ER dP7"-  
W a2V Z  
/* $kZ,uvKN  
* (non-Javadoc) :c!7rh7O  
* :kOLiko!4>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) oMkB!s  
*/ UDt.w82  
public void sort(int[] data) { [ }jSx]  
int temp; $B2* x$  
for (int i = 0; i < data.length; i++) { GNZQj8  
int lowIndex = i; IE|x+RBD  
for (int j = data.length - 1; j > i; j--) { x*}(l%[  
if (data[j] < data[lowIndex]) { OC 7:Dp4  
lowIndex = j; VtZ  
} x|F6^d   
} j8hb  
SortUtil.swap(data,i,lowIndex); rQ30)5^V|  
} :* /<eT_  
} b3#c0GL  
:>F:G%(DK  
} w^A8ZT0^7  
|jEKUTv,G  
Shell排序: yXg783B|v  
yJ/m21f  
package org.rut.util.algorithm.support; YV. *8'*  
;}.jRmnJ  
import org.rut.util.algorithm.SortUtil; !}l)okQH<#  
",#rI+ el  
/** V BIPB  
* @author treeroot BXZ( %tnY  
* @since 2006-2-2 v$+G_@  
* @version 1.0 p#^L ZX  
*/ uQ5NN*C=  
public class ShellSort implements SortUtil.Sort{ TN7kt]a2  
M GN*i9CE  
/* (non-Javadoc) lBD{)Va  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) yE{l Xp;  
*/ CW*6 -q  
public void sort(int[] data) {  T~ /Bf  
for(int i=data.length/2;i>2;i/=2){ j<8_SD=,  
for(int j=0;j insertSort(data,j,i); <saS2.4  
} )#xd]~ <  
} ^ }U{O A  
insertSort(data,0,1); : b $ M  
} <!5N=-  
!+U#^2Gz  
/** jcXb@FE6  
* @param data L7X._XBO[  
* @param j TcauCL  
* @param i Af5In9WB5  
*/ A!Xn^U*p  
private void insertSort(int[] data, int start, int inc) { ugVsp&i#  
int temp; hy W4=  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); RNl%n}   
} s ~(qO|d  
} K*7*`6iU  
} 5\:#-IYJ  
,(OA5%A9zK  
} ~AjbF(Ad  
$`{}4,5M  
快速排序: azj<aaH  
Y49kq}  
package org.rut.util.algorithm.support; Vn=J$Uv0  
_q3SR[k+`  
import org.rut.util.algorithm.SortUtil; )Qw|)='-  
ln3x1^!  
/** (0Hhn2JA  
* @author treeroot _L%/NXu,  
* @since 2006-2-2 0:v7X)St  
* @version 1.0 P:ys--$"  
*/ *v8Cj(69  
public class QuickSort implements SortUtil.Sort{ Fe"0Hp+  
:bLGDEC  
/* (non-Javadoc) Da?0B9'  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k(u W( 6  
*/ _$MoMg{uJH  
public void sort(int[] data) { ndF Kw  
quickSort(data,0,data.length-1); d!Y,i!l!  
} C\$7C5/  
private void quickSort(int[] data,int i,int j){ IB(IiF5  
int pivotIndex=(i+j)/2; 9#O"^.Z !  
file://swap "%,zB_ng\<  
SortUtil.swap(data,pivotIndex,j); b:Rl }"a  
m[ifcDZ(e  
int k=partition(data,i-1,j,data[j]); ;,Lq*x2s  
SortUtil.swap(data,k,j); s8 .oS);`  
if((k-i)>1) quickSort(data,i,k-1); hCW8(Zt  
if((j-k)>1) quickSort(data,k+1,j); @ mt v2P`  
B quyPG"  
} KhXW5hS1  
/** X+P3a/T  
* @param data D2>=^WP6+  
* @param i "84.qgYaG  
* @param j OwSr`2'9  
* @return top3o{ 4  
*/ 8Ln:y'K  
private int partition(int[] data, int l, int r,int pivot) { 2s|[!:L5  
do{ {P1W{|  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); @>X."QbE  
SortUtil.swap(data,l,r); &EA4`p  
} k3S**&i!CR  
while(l SortUtil.swap(data,l,r); pg4M$;ED  
return l; A n/)|B4  
} ZLE4 XB]  
AD*+?%hj  
} ~|l>bf  
lYQcQ*-  
改进后的快速排序: zcIZJVYA  
r4!zA-{  
package org.rut.util.algorithm.support; ]%>;R^HY  
o] )qv~o)  
import org.rut.util.algorithm.SortUtil; VNXB7#ry  
@105 @9F  
/** CIO&VK  
* @author treeroot `lcpUWn  
* @since 2006-2-2 NBUM* Z  
* @version 1.0 @B+  
*/ t)$>++i  
public class ImprovedQuickSort implements SortUtil.Sort { {{@3r5K Gl  
|M9x&(H;Hw  
private static int MAX_STACK_SIZE=4096; y$4,r4cmR|  
private static int THRESHOLD=10; ]C5JP~ #z  
/* (non-Javadoc) ro^Y$;G  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) bG2 !5m4L  
*/ 7v%~^l7:x  
public void sort(int[] data) { G78rpp  
int[] stack=new int[MAX_STACK_SIZE]; b4oZ@gVR;  
F =d L#@^  
int top=-1; A g/z\kX  
int pivot; 9FJU'$FN  
int pivotIndex,l,r; h +N75  
$Iqt c)DA  
stack[++top]=0; T][\wyLx1  
stack[++top]=data.length-1; Q\ro )r  
==UH)o`?8  
while(top>0){ 2&Wc4,O!i  
int j=stack[top--]; qI5/ME(}  
int i=stack[top--]; /PHktSG  
*k=Pk  
pivotIndex=(i+j)/2; W!GgtQw{F  
pivot=data[pivotIndex]; ]%shs  
3&x_%R  
SortUtil.swap(data,pivotIndex,j); iFS ?nZ~.  
5hg>2?e9s?  
file://partition -kQ{~"> w  
l=i-1; ]<++w;#+x  
r=j; ph^qQDA  
do{ QFDjsd4  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); *$(9,y\  
SortUtil.swap(data,l,r); 4vE,nx=  
} 3ywBq9FGhp  
while(l SortUtil.swap(data,l,r); E hd*  
SortUtil.swap(data,l,j); b$.N8W%  
RFQa9Rxk  
if((l-i)>THRESHOLD){ HZfcLDrO  
stack[++top]=i; >q[Elz=dI  
stack[++top]=l-1; P%%Cd  
} u8-)LOf(  
if((j-l)>THRESHOLD){ <t]i' D(K  
stack[++top]=l+1; 7&m*: J  
stack[++top]=j; ]yCmGt+b  
} }b6ja y  
b>I -4  
} GW.s\8w  
file://new InsertSort().sort(data); ) ,*&rd!  
insertSort(data); A+;]# 1y(D  
} }JrM!'  
/** BD,~M*%z  
* @param data !Y`nKC(=z  
*/ Z*s/%4On  
private void insertSort(int[] data) { _3hCu/BV  
int temp; kTs)u\r.  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); iK=H9j  
} .:_dS=ut  
} F;`of  
} F N(&3Ull  
 ,ulTZV  
} DRf~l9f  
B3XVhUP  
归并排序: 4?72TBl]  
fN8A'p[  
package org.rut.util.algorithm.support; h/eKVRGs"  
kwZC 3p\\  
import org.rut.util.algorithm.SortUtil; X+bLLW>&  
6Y\9h)1Jo  
/** HT kce,dQ  
* @author treeroot 6q6&N'We  
* @since 2006-2-2 `=%[  
* @version 1.0 ~''qd\.f$  
*/  X-~Q  
public class MergeSort implements SortUtil.Sort{ ^'v6 ,*:4  
o"QpV >x  
/* (non-Javadoc) j!m~ :D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) wF3mQ_hv:@  
*/ v%86JUlK.  
public void sort(int[] data) { +z("'Cv  
int[] temp=new int[data.length]; P%B1dRa  
mergeSort(data,temp,0,data.length-1); r`wL_>"{n  
} 5\EHu8  
Y6^lKw  
private void mergeSort(int[] data,int[] temp,int l,int r){ (WN'wp  
int mid=(l+r)/2; #@lr$^M  
if(l==r) return ; -v>BeVF  
mergeSort(data,temp,l,mid); E62VuX  
mergeSort(data,temp,mid+1,r); <Hm:#<\  
for(int i=l;i<=r;i++){ ?CL1^N%  
temp=data; p B?a5jpA  
} OkA-=M)RI:  
int i1=l; #BlH)Cv  
int i2=mid+1; uTB; Bva  
for(int cur=l;cur<=r;cur++){ @RbAC*Y]g  
if(i1==mid+1) ~~ )&? \N  
data[cur]=temp[i2++]; 988aF/c  
else if(i2>r) `d3S0N6@  
data[cur]=temp[i1++]; ((;9%F:/$  
else if(temp[i1] data[cur]=temp[i1++]; --",}%-  
else CcAsJX~_  
data[cur]=temp[i2++];  v+G}n\F  
} ]WyV~Dzz<  
} b^hCm`2w*  
}[ux4cd8Y  
} ?vf\_R'M  
as~.XWa  
改进后的归并排序: 8*6J\FE<p  
$`_(%tl  
package org.rut.util.algorithm.support; PX2Ejrwj  
7b@EvW6X}  
import org.rut.util.algorithm.SortUtil; !i}G>*XH,  
R%3H"FU9w  
/** |W*f 6F3  
* @author treeroot !!Mp;h'}-  
* @since 2006-2-2 De:w(Rm  
* @version 1.0 pMa 3R3a  
*/ glk I9~  
public class ImprovedMergeSort implements SortUtil.Sort { Zb);08X  
S)JZ b_  
private static final int THRESHOLD = 10; j cx/ZR  
>`,v?<>+  
/* !jYV,:'  
* (non-Javadoc) <uv{/L b  
* { H9pF2C  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) CAc nH  
*/ w[4SuD  
public void sort(int[] data) { Dtd bQF  
int[] temp=new int[data.length]; p c-'+7Dh>  
mergeSort(data,temp,0,data.length-1); Hvor{o5|tB  
} 1T}|c;fc  
mn0QVkb}lc  
private void mergeSort(int[] data, int[] temp, int l, int r) { 7^|3T TK  
int i, j, k; NSb< 7_L  
int mid = (l + r) / 2; s#* mn  
if (l == r) ;CAB.aB~  
return; EY2s${26%  
if ((mid - l) >= THRESHOLD) 36Wuc@<H  
mergeSort(data, temp, l, mid); o~es> ;  
else z{!wQ~ j  
insertSort(data, l, mid - l + 1); ]e?*7T]  
if ((r - mid) > THRESHOLD) {6/%w,{,  
mergeSort(data, temp, mid + 1, r); nV']^3b  
else a[9;Okm #  
insertSort(data, mid + 1, r - mid); Wuc,Cjm9(!  
]*zF#Voc  
for (i = l; i <= mid; i++) { 7M*+!al9  
temp = data; YWq[)F@0G  
} `4;<\VYCr  
for (j = 1; j <= r - mid; j++) { K<+AJ(C  
temp[r - j + 1] = data[j + mid]; * k =L  
} 0Vy* 0\{S  
int a = temp[l]; j#!J hi  
int b = temp[r]; _DJ0 MR~3  
for (i = l, j = r, k = l; k <= r; k++) { 5l(;+#3y/  
if (a < b) { OtQKDpJq  
data[k] = temp[i++]; UK& E#i  
a = temp; /!AdX0dx  
} else { gfr``z=>O  
data[k] = temp[j--]; ch : 428  
b = temp[j]; %@pTEhpF  
} g08=D$P  
} k"Sw,"e>+  
} J>Zd75;U  
Y71b Lg  
/** J anLJe)  
* @param data \N"K^kR4  
* @param l rt~X (S  
* @param i pF"z)E|^  
*/ by8d18:it  
private void insertSort(int[] data, int start, int len) { B8a!"AQ~5  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 2M1yw "  
} !L3Bvb;Q  
} ~{d94o.  
} \19XDqf8  
} nMVThN*I g  
DB>>U>H-  
堆排序: df8rf8B-  
G]&:">&R  
package org.rut.util.algorithm.support; t.knYO)  
[$H8?J   
import org.rut.util.algorithm.SortUtil; SB  \ptF  
!7bC\ {  
/** dm,bZHo  
* @author treeroot qRB%G<H  
* @since 2006-2-2 aG=Y 6j G  
* @version 1.0 VQo7 se1P  
*/ 7c;59$2(  
public class HeapSort implements SortUtil.Sort{ ;\#u19  
QMfYM~o  
/* (non-Javadoc) QAb[M\G  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^OA}#k NTW  
*/ );Gt!]p`;  
public void sort(int[] data) { zlFl{t  
MaxHeap h=new MaxHeap(); wlKL|N  
h.init(data); .!9]I'9M  
for(int i=0;i h.remove(); 53(m9YLk  
System.arraycopy(h.queue,1,data,0,data.length); w;#9 hW&  
} \LM'KD pP_  
7Uj[0Awn  
private static class MaxHeap{ jj$'DZk  
x$s#';*  
void init(int[] data){ _=}Y lR  
this.queue=new int[data.length+1]; H56e#:[$  
for(int i=0;i queue[++size]=data; Ir}&|"~H  
fixUp(size); Nw|Lrn*h!  
} j83p[qR7o  
} 8Q6il-  
&"^A  
private int size=0; t-E'foYfr`  
gXH89n  
private int[] queue; DI$z yj~3  
X.272q<.  
public int get() { qt;6CzL C  
return queue[1]; J-\b?R a  
} twO)b"0  
hc[GpZcw,  
public void remove() { ~i  &K,  
SortUtil.swap(queue,1,size--); VUNQ@{ST|1  
fixDown(1); '0o`<xW  
} uHf~KYL  
file://fixdown aMz%H|/$  
private void fixDown(int k) { {s`1+6_&Vz  
int j; @cjhri|vH  
while ((j = k << 1) <= size) { :Z< 5iLq  
if (j < size %26amp;%26amp; queue[j] j++; {b#c0>.8-  
if (queue[k]>queue[j]) file://不用交换 ::M/s#-@  
break; YJ75dXc&&  
SortUtil.swap(queue,j,k); -k<.Q=]<t  
k = j; 2%@j<yS  
} uF^+}Y ZT  
} Cch1"j<k$  
private void fixUp(int k) { mIr{Wocx  
while (k > 1) { 2r* o  
int j = k >> 1; iK.MC%8?  
if (queue[j]>queue[k]) Dt +"E  
break; g~V{Ca;}  
SortUtil.swap(queue,j,k); CMF1<A4]  
k = j; r/{VL3}F_e  
} )8Q|y  
} .upcUS8  
(p2\H>pTr  
} awC&xVf  
RcHyePuF)R  
} PGw"\-F  
WV&BZ:H  
SortUtil: H-rf?R2  
liU=5 BL  
package org.rut.util.algorithm; MRJdQCBV  
 vb70~k  
import org.rut.util.algorithm.support.BubbleSort; ,*%8*]<=  
import org.rut.util.algorithm.support.HeapSort; ]X-ZRmB`  
import org.rut.util.algorithm.support.ImprovedMergeSort; $*@mxwMQ}  
import org.rut.util.algorithm.support.ImprovedQuickSort; eg,S(;VEt  
import org.rut.util.algorithm.support.InsertSort; l YZHM,"  
import org.rut.util.algorithm.support.MergeSort; > ZNL pJQ  
import org.rut.util.algorithm.support.QuickSort; e3Lf'+G\  
import org.rut.util.algorithm.support.SelectionSort; &Owt:R)9~  
import org.rut.util.algorithm.support.ShellSort; goHr# @  
IXg${I}_Q  
/** glv(`cQ  
* @author treeroot | z('yy$  
* @since 2006-2-2 9(@bjL465  
* @version 1.0 5Y,e}+I>  
*/ F]ALZxwkz  
public class SortUtil { gVI*`$  
public final static int INSERT = 1; -m+2l`DLy  
public final static int BUBBLE = 2; ^ #Wf  
public final static int SELECTION = 3; Z]Qm64^I  
public final static int SHELL = 4; Y@r#:BH )  
public final static int QUICK = 5; o 86}NqK  
public final static int IMPROVED_QUICK = 6; kv'n W  
public final static int MERGE = 7; {Qhv HV  
public final static int IMPROVED_MERGE = 8; D!X{9q}S1  
public final static int HEAP = 9; fI BLJ53  
-|3U0: 'm  
public static void sort(int[] data) { ^iI^)  
sort(data, IMPROVED_QUICK); |]I?^:I  
} Ik}*7D  
private static String[] name={ O=-|b kO  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" C'=C^X%  
}; ;pULJ}rDb  
O}KT>84M  
private static Sort[] impl=new Sort[]{ Xz5=fj&  
new InsertSort(), VyI%^S ]sS  
new BubbleSort(), .KB*u*h  
new SelectionSort(), :zZtZT!  
new ShellSort(), e~-D k .i  
new QuickSort(), TIvLY5 HG  
new ImprovedQuickSort(), 6}|vfw  
new MergeSort(), jV7q)\uu^  
new ImprovedMergeSort(), r[?rwc^  
new HeapSort() %`}Qkb/Lyh  
}; wIY#TBu  
!W3Le$aL  
public static String toString(int algorithm){ -bj1y2)n  
return name[algorithm-1]; ]-AT(L >  
} Z6 aT%7}}  
3'']q3H  
public static void sort(int[] data, int algorithm) { l'o}4am  
impl[algorithm-1].sort(data); P/ y-K0u  
} ^X_%e|  
W&*{j;e9%I  
public static interface Sort { t4JGd)r  
public void sort(int[] data); w6cPd'  
} $>BP}V33  
qt1# P  
public static void swap(int[] data, int i, int j) { qM9GW`CKA  
int temp = data; s@ q54  
data = data[j]; d>aZpJ[.  
data[j] = temp; \J13rL{<  
} Q2NS>[  
} i/$lO de  
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
批量上传需要先选择文件,再选择上传
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八