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
  • 5356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。 v^aI+p6  
插入排序: )=AWgA  
jHk.]4&0  
package org.rut.util.algorithm.support; sKC(xO@L;`  
 E]W :  
import org.rut.util.algorithm.SortUtil; ~d-Q3n?zR  
/** + cZC$lo  
* @author treeroot %k @4}M>  
* @since 2006-2-2 $}B&u)  
* @version 1.0 7()5\ae@q'  
*/ C5Mpm)-%  
public class InsertSort implements SortUtil.Sort{ !m8T< LtMl  
Ml6}47n  
/* (non-Javadoc) 'EC0|IT)c  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N ;Cs? C  
*/ ^O<@I  
public void sort(int[] data) { `jec|i@oO  
int temp; u)vS,dzu  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); =R*IOJ  
} }U?:al/m  
} =^z*p9ZB  
} *onVG5<  
mbHMy[R  
} 9Zr6 KA{  
+xQj-r)-  
冒泡排序: R)-~5"}~  
>0?ph<h1[q  
package org.rut.util.algorithm.support; 4lI&y<F  
eoJ*?v  
import org.rut.util.algorithm.SortUtil; `>=@Kc  
m[v%Qe|~  
/** r`i.h ^2De  
* @author treeroot OZ/"W)  
* @since 2006-2-2 H(kxRPH4@]  
* @version 1.0 G 2uM6  
*/ Z/q'^PB p  
public class BubbleSort implements SortUtil.Sort{ yji>vJHu  
?*6Q ;.f<  
/* (non-Javadoc) ni6zo~+W]  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }(oWXwFb&W  
*/ N'0nt]&a  
public void sort(int[] data) { \H 5t-w=  
int temp; 8%p+:6kP5  
for(int i=0;i for(int j=data.length-1;j>i;j--){ pZ]&M@Ijp  
if(data[j] SortUtil.swap(data,j,j-1); <) -]'@*c  
} xl Q]"sm1  
} t ?05  
} !Ej?9LHo  
} [LrO"9q(  
zb s7G  
} iLNO}EUL  
O^8=Xj#}  
选择排序: Zzmo7kFx3  
7!;zkou  
package org.rut.util.algorithm.support; 0^)~p{Zh  
Jl|^^?  
import org.rut.util.algorithm.SortUtil; G?!8T91;  
%S^:5#9  
/** AC!yc(^<  
* @author treeroot `JyI`@,!  
* @since 2006-2-2 ^CD? SP"i  
* @version 1.0 }"[/BT5t  
*/ I8|"h8\  
public class SelectionSort implements SortUtil.Sort { > w SI0N  
+BE_t(%p"  
/* n4.\}%=z  
* (non-Javadoc) HkY#i;%N  
* i-. AD4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V."cmtf  
*/ v=cX.^ L  
public void sort(int[] data) { ~du U& \  
int temp; g ;X K3R  
for (int i = 0; i < data.length; i++) { GyV uQ51  
int lowIndex = i; 3GrIHiC r  
for (int j = data.length - 1; j > i; j--) { (B%[NC 6  
if (data[j] < data[lowIndex]) { {XV 'C @B  
lowIndex = j; &q M8)2Y  
} (M{>9rk8  
} OGO\u#  
SortUtil.swap(data,i,lowIndex); 3QF[@8EH{  
} &8I*N6p:%/  
} GNSh`Tm=#  
i~)EU F  
} RL H!f1cta  
W$W w/mcl+  
Shell排序: #99=wn  
rC_saHo>#R  
package org.rut.util.algorithm.support; wO6>jW 7  
d%K{JkD-  
import org.rut.util.algorithm.SortUtil; ca5;Z@t$S  
`i+2YCk  
/** X~/-,oV=A  
* @author treeroot qyh]v[  
* @since 2006-2-2 Z$%!H7w  
* @version 1.0 nzF2Waa-  
*/ /SyAjZ  
public class ShellSort implements SortUtil.Sort{ G<]@nP{P  
Ggy?5N7P  
/* (non-Javadoc) N^AlhR^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Spn)M79  
*/ \7%wJIeyx  
public void sort(int[] data) { HVzkS|^F  
for(int i=data.length/2;i>2;i/=2){ Aj(y]p8  
for(int j=0;j insertSort(data,j,i); LBmXy8'T`  
} B>sQcZ:  
} hjhZ":I.  
insertSort(data,0,1); BqDsf5}jpA  
} JB=L{P J  
43<i3O  
/** \tY7Ga%c  
* @param data N8=-=]0G  
* @param j +;=>&XR0m  
* @param i /c6]DQ<?  
*/ o)$eIu}Wg  
private void insertSort(int[] data, int start, int inc) { LI^D\  
int temp; -BWWaL  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); QL2 `X2  
} "xn,'`a  
} S~&9DQNj  
} "-j96 KD  
x(p/9$.#  
} F&B E+b/#  
CrG!8}  
快速排序: J25/Iy*byG  
*pABdP+  
package org.rut.util.algorithm.support;  Z`|\%D%  
(cV1Pmn  
import org.rut.util.algorithm.SortUtil; -Owb@Nw  
P# U|  
/** lHHx D  
* @author treeroot px(~ZZB"  
* @since 2006-2-2 N/<c;"o  
* @version 1.0 _H-Fm$Q  
*/ :nfy=*M#  
public class QuickSort implements SortUtil.Sort{ rq\<zx]au  
UUa@7|x  
/* (non-Javadoc) 1^ go)(Mx  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }lCQ+s!  
*/ bH:C/P<x  
public void sort(int[] data) { hlz/TIP^N3  
quickSort(data,0,data.length-1); G*~CB\K_  
} Xq"Es  
private void quickSort(int[] data,int i,int j){ Dz/MIx  
int pivotIndex=(i+j)/2; 5PP^w~n  
file://swap 8*|*@  
SortUtil.swap(data,pivotIndex,j); ePxAZg$ `>  
*)oBE{6D  
int k=partition(data,i-1,j,data[j]); `B,R+==G:  
SortUtil.swap(data,k,j); f9+6gY  
if((k-i)>1) quickSort(data,i,k-1); :LC3>x`:  
if((j-k)>1) quickSort(data,k+1,j); IWI$@dng6  
~=<uYv?0s  
} Cv4nl7A'  
/** sP~xe(  
* @param data /CbiYm  
* @param i FMzG6nrdBN  
* @param j 6&L;Sw#Dg  
* @return NbCIL8f]  
*/ P m&^rC;  
private int partition(int[] data, int l, int r,int pivot) { 2 zG;91^  
do{  =WEDQ\ c  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); `.]oH1\  
SortUtil.swap(data,l,r); 2L51 H(  
} I1s$\NZ~]  
while(l SortUtil.swap(data,l,r); yS3or(K  
return l; #\O'*mz  
} h##U=`x3  
n</Rd=  
} c>Ri6=C  
=Lnip<t>ja  
改进后的快速排序: # @7 I  
7Jz 9%iP  
package org.rut.util.algorithm.support; )n[=)"rf  
DbtkWq%  
import org.rut.util.algorithm.SortUtil; <AP.m4N) _  
i9`-a/  
/** $Il  
* @author treeroot :@@m'zF<;  
* @since 2006-2-2 L>0Pur)[  
* @version 1.0 \((5Sd  
*/ B@ ms Gb C  
public class ImprovedQuickSort implements SortUtil.Sort { ?ef7%0  
yf-2E_yB  
private static int MAX_STACK_SIZE=4096; (T&(PCw|  
private static int THRESHOLD=10; s0 Z)BR #  
/* (non-Javadoc) P :%b[7  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YN7`18u  
*/ g`tV^b")  
public void sort(int[] data) { "D KrQ,L  
int[] stack=new int[MAX_STACK_SIZE]; NJ;m&Tm,DF  
#.C2_MN>  
int top=-1; @xBO[v  
int pivot; <Q`3;ca^  
int pivotIndex,l,r; O`aNNy  
\MPbG$ ^  
stack[++top]=0; 6#\:J0  
stack[++top]=data.length-1; rfzzMV  
rhly.f7N=A  
while(top>0){ 'tU\~3k  
int j=stack[top--]; | h+vdE8  
int i=stack[top--]; c\O2|'JzE  
e<FMeg7n  
pivotIndex=(i+j)/2; Z`zLrXPD)  
pivot=data[pivotIndex]; koE]\B2A6  
d>Nh<PqH6  
SortUtil.swap(data,pivotIndex,j); ^&$86-PB/  
Tks"GlE*D  
file://partition wM3m'# xJ  
l=i-1; -lAY*2Jg  
r=j; 2^w{Hcf  
do{ .[3C  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Z%=A[` 5]  
SortUtil.swap(data,l,r); 5w+&plIJ  
} <(V~eo e  
while(l SortUtil.swap(data,l,r); kLpq{GUv:  
SortUtil.swap(data,l,j); dJdOh#8+Xi  
4gWlSm)  
if((l-i)>THRESHOLD){ Lw1[)Vk}E  
stack[++top]=i; ]1W]  
stack[++top]=l-1; "<%J^Z9G  
} U6y`:G;.  
if((j-l)>THRESHOLD){ \w(0k^<7  
stack[++top]=l+1; ; qr?[{G  
stack[++top]=j; 6':Egh[;  
} og&h$<uOZt  
LnsYtkb r  
} Q&"oh  
file://new InsertSort().sort(data); y0/FyQs  
insertSort(data); ` K0PLxSv  
} 6BM$u v4  
/** S1m5z,G  
* @param data s#")hMJQ  
*/ D(&WEmm\B  
private void insertSort(int[] data) { |`V=hqe{  
int temp;  !$!%era`  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 6o5,d]  
} dO,; k +  
} gr{*wYL  
} Np+pJc1  
uY/C iTWr  
} {))Cb9'  
|YfJ#Agm+  
归并排序: vb`aV<MhH  
Q~P|=*  
package org.rut.util.algorithm.support; GhjqStjS&l  
?32i1F!  
import org.rut.util.algorithm.SortUtil; \C$cbI=;+  
qEl PYN*wF  
/** \=xS?(v!  
* @author treeroot RZ ?SiwE  
* @since 2006-2-2 h(4\k?C5  
* @version 1.0 w|*D{`O  
*/ {LCKt/Z>P  
public class MergeSort implements SortUtil.Sort{ x~{W(;`!  
f|)~_J H  
/* (non-Javadoc) vg _PMy\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >g@@ yR,  
*/ 8s-X H  
public void sort(int[] data) { ~,xso0  
int[] temp=new int[data.length]; @U1t~f^  
mergeSort(data,temp,0,data.length-1); P97i<pB Y_  
} 6E^9>  
| qelvK*  
private void mergeSort(int[] data,int[] temp,int l,int r){ )ZFc5m^+u  
int mid=(l+r)/2; DnW/q  
if(l==r) return ; &FYv4J  
mergeSort(data,temp,l,mid); (N)>?r@n`  
mergeSort(data,temp,mid+1,r); uK1VFW  
for(int i=l;i<=r;i++){ R\/tKZJjb  
temp=data; _5$L`&  
} #YK3Ogb,  
int i1=l; d3#e7rQ8  
int i2=mid+1; {eQijW2Z3  
for(int cur=l;cur<=r;cur++){ lQm7`+  
if(i1==mid+1) |+>U91!  
data[cur]=temp[i2++]; ?|!m  
else if(i2>r) @l5GBsLK  
data[cur]=temp[i1++]; !67xN?b  
else if(temp[i1] data[cur]=temp[i1++]; \b$Y_  
else P6=5:-Hh  
data[cur]=temp[i2++]; ^),t=!;p  
} ;W FiMM\  
} ez5>V7Y  
HW#@e kh  
} L 7LUy$M-<  
. NxskXq)  
改进后的归并排序: WORRF  
EVA&By6_k  
package org.rut.util.algorithm.support; wByTNA7  
6VJS l%X  
import org.rut.util.algorithm.SortUtil; \YF07L]qs-  
,^eOwWV  
/** s vS)7]{cU  
* @author treeroot {/>uc,8O  
* @since 2006-2-2 [UB*39D7  
* @version 1.0 0W+RVp=TL1  
*/ bMv[.Z@v(  
public class ImprovedMergeSort implements SortUtil.Sort { \%V !& !'  
Dqd2e&a\  
private static final int THRESHOLD = 10; \0&$ n  
%5@> nC?`[  
/* Z$6B}cz<  
* (non-Javadoc) ];N/KHeZ  
* E]^n\bE%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) LZE9]Gd  
*/ 4-$kc wA  
public void sort(int[] data) { U:[CcN/~3  
int[] temp=new int[data.length]; 3 +`,'Q9  
mergeSort(data,temp,0,data.length-1); fRkx ^u P  
} ZjrBOb  
y>d`cRy  
private void mergeSort(int[] data, int[] temp, int l, int r) { G{Uqp'=G  
int i, j, k; Xf mN/j2  
int mid = (l + r) / 2; :lmimAMt  
if (l == r) =@X?$>'  
return; Y@T$O<*  
if ((mid - l) >= THRESHOLD) '0&HkM{ D  
mergeSort(data, temp, l, mid); W2M[w_~QE  
else %dhrXK5  
insertSort(data, l, mid - l + 1); 1' dZ?`O  
if ((r - mid) > THRESHOLD) ;sz_W%-;@  
mergeSort(data, temp, mid + 1, r); Xr88I^F;  
else (|3?wX'2U  
insertSort(data, mid + 1, r - mid); B8!$?1*^a  
R"\(a  
for (i = l; i <= mid; i++) { dX[ Xe  
temp = data; ;4Xx5*E  
} zN-Y=-c  
for (j = 1; j <= r - mid; j++) { mS0;2x U  
temp[r - j + 1] = data[j + mid]; \nL@P6X  
} cHVu6I?h  
int a = temp[l]; 7_lgo6  
int b = temp[r]; ~~I]SI k{  
for (i = l, j = r, k = l; k <= r; k++) { AgUjC  
if (a < b) { =GeGlI6  
data[k] = temp[i++]; z=8l@&hYLq  
a = temp; n,_9Eh#WD  
} else { !<b+7 A  
data[k] = temp[j--]; O-P`HKr  
b = temp[j]; ![MtJo5  
} .G"T;w 6d  
} tq=M 9c  
} WE-+WC!!:  
w7vQ6jkH  
/** [=u@6Y  
* @param data 0}T 56aD=!  
* @param l j W[EjhsH  
* @param i &?}h)U#:  
*/ r|/9'{!  
private void insertSort(int[] data, int start, int len) { Q trU_c2k  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); XjxI@VXzUV  
} zgn`@y2  
} =eh!eZ9  
} k RSY;V  
} BV\~Dm]"  
sAZL,w  
堆排序: Qk@BM  
/1=x8Sb  
package org.rut.util.algorithm.support; n^l5M^.  
rm|,+ {  
import org.rut.util.algorithm.SortUtil; 6Yqqq[#V/  
vSH-hAk  
/** yHZ&5  
* @author treeroot uOZSX.o^  
* @since 2006-2-2 PMvm4<  
* @version 1.0 RL/5 o"  
*/  x_/H  
public class HeapSort implements SortUtil.Sort{ M.C`nI4  
zW.Ltz  
/* (non-Javadoc) y\dx \  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &hZ6CV{  
*/ zhyf}Ta'  
public void sort(int[] data) { 2j1HN  
MaxHeap h=new MaxHeap(); 4e?cW&  
h.init(data); |]-~yYqP3  
for(int i=0;i h.remove(); eQqCRXx  
System.arraycopy(h.queue,1,data,0,data.length); VjZb\ d4  
} &rc r>-  
uF)^mT0D=  
private static class MaxHeap{ KQ(S\  
Cwji,*  
void init(int[] data){ E|6@h8 #  
this.queue=new int[data.length+1]; @9k/od@mW  
for(int i=0;i queue[++size]=data; \Z~ <jv  
fixUp(size); x'%vL",%  
}  8*uaI7;*  
} X 3ZKN;  
?b(DDQMf  
private int size=0; M,Lq4bz  
f.R;<V.)  
private int[] queue; ";n%^I}  
l[nf"'  
public int get() { 5\ }QOL  
return queue[1]; (F:|tiV+  
} !wro7ilMB  
jd`]]FAww  
public void remove() { _~*ba+{  
SortUtil.swap(queue,1,size--); 7&V3f=aj6  
fixDown(1); x3jjtjf  
} ye| 2gH  
file://fixdown =Prz|   
private void fixDown(int k) { C"k]U[%{  
int j; .wtYost v  
while ((j = k << 1) <= size) { zT hut!O  
if (j < size %26amp;%26amp; queue[j] j++; (YYwn@NGj  
if (queue[k]>queue[j]) file://不用交换 W)Yo-%  
break; V<KjKa+sG  
SortUtil.swap(queue,j,k); Xxm7s S  
k = j; V:AA{<  
} a3He-76  
} Q"oJhxS  
private void fixUp(int k) { }MM:qR  
while (k > 1) { 1O90 ]c0  
int j = k >> 1; Lk-h AN{[  
if (queue[j]>queue[k]) }F3}"Ik'L  
break; +]Z *_?j9{  
SortUtil.swap(queue,j,k); M IUB]  
k = j; ;;EFiaA  
} owO &[D/  
} p\]rxtm  
1}CJ&  
} gf8~Zlq4v  
mDWRYIuN  
}  Y@b|/+  
`0R>r7f)H  
SortUtil: b1Ba}  
f>?b2a2HX  
package org.rut.util.algorithm; Jd33QL}Hj  
of`WP  
import org.rut.util.algorithm.support.BubbleSort; 3BB/u%N}  
import org.rut.util.algorithm.support.HeapSort; yv> 6u7  
import org.rut.util.algorithm.support.ImprovedMergeSort; ]:4\ rBR3  
import org.rut.util.algorithm.support.ImprovedQuickSort; g{m~TVm'  
import org.rut.util.algorithm.support.InsertSort; X(C=O?A  
import org.rut.util.algorithm.support.MergeSort; \Fu(IuD  
import org.rut.util.algorithm.support.QuickSort; JS&;7Z$KX  
import org.rut.util.algorithm.support.SelectionSort; 1_G+sDw$  
import org.rut.util.algorithm.support.ShellSort; VB4ir\nF  
t & 5s.  
/** \6/!{D,  
* @author treeroot 4HGR-S/  
* @since 2006-2-2 RRGs:h@;  
* @version 1.0  w4UJXc  
*/ !nF.whq  
public class SortUtil { pq]>Ep  
public final static int INSERT = 1; m2F+ 6G  
public final static int BUBBLE = 2; 2o0WS~}5  
public final static int SELECTION = 3; [?)He} _L  
public final static int SHELL = 4; X>MDX.Z  
public final static int QUICK = 5; 70nBC  
public final static int IMPROVED_QUICK = 6; M7(]NQ\TQ  
public final static int MERGE = 7; Lcs?2c:%  
public final static int IMPROVED_MERGE = 8; cvV8 ;  
public final static int HEAP = 9; d ?,wEfwp  
m khp@^5  
public static void sort(int[] data) { ,u.A[{@py  
sort(data, IMPROVED_QUICK); !\q'{x5C  
} Acb %)Y  
private static String[] name={ ;]%Syrzp  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 4uv*F:eo  
}; 74KR.ABd  
Z%VgAV>>  
private static Sort[] impl=new Sort[]{ {XLRrU!*  
new InsertSort(), : )k|Onz  
new BubbleSort(), rX|{nb  
new SelectionSort(), Ys@\~?ym+  
new ShellSort(), e~$aJO@B.R  
new QuickSort(), ban;HGGNG{  
new ImprovedQuickSort(), !LpFK0rw  
new MergeSort(), j|y"Lcq  
new ImprovedMergeSort(), FF30 VlJ  
new HeapSort() OUm,;WNLf  
}; F'njtrO3  
sfCU"O2G  
public static String toString(int algorithm){ ^<Sy{KY  
return name[algorithm-1]; t\-;n:p-  
} sTECNY=l  
EB5 ^eNdL  
public static void sort(int[] data, int algorithm) { (gUxS.zU  
impl[algorithm-1].sort(data); oX6()FR  
} i0[mU,  
ezr'"1Ba}  
public static interface Sort { >NBwtF>  
public void sort(int[] data); >uYGY{+j[  
} }A7 ] bd  
Gq.fQ_oOb  
public static void swap(int[] data, int i, int j) { C33=<r[;N<  
int temp = data; xx[l#+:c  
data = data[j]; bm(.(0MI  
data[j] = temp; }[By N).  
} p+:MZP -%(  
} o@r~KFIe  
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:
3+5=?,请输入中文答案:八 正确答案:八