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
  • 7412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。 eFaO7mz5V%  
插入排序: fI{ESXU  
tasIDoo+!J  
package org.rut.util.algorithm.support; RZHd9v$  
2[Z,J%:0  
import org.rut.util.algorithm.SortUtil; N!ls j \-  
/** P#R R9>Q  
* @author treeroot ^Y@\1fX 4e  
* @since 2006-2-2 SLkhCR  
* @version 1.0 S& S Q  
*/ OHeT,@(mh  
public class InsertSort implements SortUtil.Sort{ [Grxw[(_:  
T+*%?2>q"  
/* (non-Javadoc) 6%t1bM a  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) o<[#0T^K   
*/ |_] Q$q[[%  
public void sort(int[] data) { 8kU! 8^mH  
int temp; C"!gZ8*\!9  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); o9JMH.G  
} v*;-yG&  
} CS@FYO  
} {_`^R>"\&w  
23c 8  
} M[mF8Zf  
%e-7ubW  
冒泡排序: zb k q   
^5H >pat  
package org.rut.util.algorithm.support; <g1hxfKx5  
i>D.!x  
import org.rut.util.algorithm.SortUtil; qyF{f8pzq  
luo   
/** vd [}Gd  
* @author treeroot ]~aF2LJ_q  
* @since 2006-2-2 8vMG5#U[  
* @version 1.0 UmKI1l  
*/ *pSQU=dmS  
public class BubbleSort implements SortUtil.Sort{ [3(7  4  
Jth[DUH8H  
/* (non-Javadoc) n@C[@?D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pimtiQqC  
*/ AyNI$Q6Z  
public void sort(int[] data) { U^Q:Y}^  
int temp; "t (p&;d  
for(int i=0;i for(int j=data.length-1;j>i;j--){ fz\9 S  
if(data[j] SortUtil.swap(data,j,j-1); t"= E^r  
} 2nSSF x r  
} >33=<~#n  
} |$vX<. S  
} {[+mpKq  
vhpNpgz  
} Kla'lCZ  
$6mX  
选择排序: cki81bOT  
43mP]*=A  
package org.rut.util.algorithm.support; te3}d'9&|  
y9x w 9l'  
import org.rut.util.algorithm.SortUtil; `8AR_7i  
hp#W 9@NR  
/** 8n'B6hi  
* @author treeroot :c8&N-`  
* @since 2006-2-2 E^vJ@O  
* @version 1.0 \#Pfj &*  
*/ .}OR  
public class SelectionSort implements SortUtil.Sort { _a6[{_Pc  
~yH?=:>U  
/* swM*k;$q{  
* (non-Javadoc) q(`/Vo4g(  
* rEB @$C^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P(+&OoY2  
*/ jN[`L%Qm   
public void sort(int[] data) { <eQj`HL  
int temp; \Ta"}TF8  
for (int i = 0; i < data.length; i++) { &Xf^Iu  
int lowIndex = i; 3BtaH#ZY  
for (int j = data.length - 1; j > i; j--) { bn!HUM,  
if (data[j] < data[lowIndex]) { l|kSsP:GO  
lowIndex = j; FFu9&8Y  
} d-k%{eBV  
} {]:7bV#JP  
SortUtil.swap(data,i,lowIndex); U)E(`{p]  
} >8k _n  
} GBRa.;Kk  
/atW8 `&  
} R)QC)U  
V:VO[e<e  
Shell排序: ~GL] wF2#  
n ~shK<!C  
package org.rut.util.algorithm.support; -'t)=YJ  
2/"u5  
import org.rut.util.algorithm.SortUtil; IIn"=g=9  
G/7cK\^u  
/** ?d{Na= O\  
* @author treeroot xx#zN0I>-y  
* @since 2006-2-2 `< xn8h9p  
* @version 1.0 "|qqUKJZ  
*/ orWbU UC  
public class ShellSort implements SortUtil.Sort{ ;[M}MFc/`  
9f&C  
/* (non-Javadoc) >pp5;h8!  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4nh>'v%pD  
*/ W g02 A\  
public void sort(int[] data) { OmIg<v 0\;  
for(int i=data.length/2;i>2;i/=2){ DXJ`oh  
for(int j=0;j insertSort(data,j,i); ll`>FcQ  
} uBNn6j  
} 23RN}LUi  
insertSort(data,0,1); Rm255z p  
} 59"UL\3  
3|'>`!hb  
/** PH+S};Uxv  
* @param data A Q'J9  
* @param j (9Ux{@$o[  
* @param i _j< K=){  
*/ G 8g<>d{j  
private void insertSort(int[] data, int start, int inc) { l'/R&`-n  
int temp; ;/r1}tl+3>  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); xKuRh}^K  
} 8~J(](QA  
} 0yuS3VY)  
} {^\+iK4bS  
qI#;j%V  
} ABD)}n=%c  
e?JW   
快速排序: 1~Oe=`{&  
`w.n]TR  
package org.rut.util.algorithm.support; o<COm9)i  
= kJ,%\E`  
import org.rut.util.algorithm.SortUtil; :h\Q;?  
?o81E2TJO  
/** n%-R[vW  
* @author treeroot `(_s|-$  
* @since 2006-2-2 KH(%?  
* @version 1.0 gMWjk7  
*/ <}<zgOT[1!  
public class QuickSort implements SortUtil.Sort{ Fcd3H$Na;  
ST:A<Da"  
/* (non-Javadoc) IC1NKn<k  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  @~!wDDS  
*/ 8FKXSqhVM  
public void sort(int[] data) { zgNc4B  
quickSort(data,0,data.length-1); zNxW'?0Z?  
} c:<005\Bg  
private void quickSort(int[] data,int i,int j){ lij.N) E  
int pivotIndex=(i+j)/2; bdC8zDD  
file://swap mS(fgq6  
SortUtil.swap(data,pivotIndex,j); b{L/4bu  
r:f[mk"-"A  
int k=partition(data,i-1,j,data[j]); j bVECi-  
SortUtil.swap(data,k,j); 9Uj $K>:  
if((k-i)>1) quickSort(data,i,k-1); &PYK8}pBk3  
if((j-k)>1) quickSort(data,k+1,j); 3I)VHMC  
D~hg$XzK  
} ="Ho%*@6  
/** *AO,^R&e.  
* @param data 'EbWFMjy  
* @param i 3RYpJAH  
* @param j u%}nw :>  
* @return 9N@W\DT  
*/ ,z;cbsV-{  
private int partition(int[] data, int l, int r,int pivot) { ]P.'>4  
do{ H`1{_  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); W+UfGk}A  
SortUtil.swap(data,l,r); 0ZZZoP o  
} %E#s\B,w  
while(l SortUtil.swap(data,l,r); _ba>19csq%  
return l; LhOa{1SY  
} M+U9R@  
Sdt`i  
} 6$kqaS##  
q U%/W|LY  
改进后的快速排序: r^FhTzA=1  
[fAV5U  
package org.rut.util.algorithm.support; 3Dng 1}  
:~2vJzp@?  
import org.rut.util.algorithm.SortUtil; ';3{T:I  
"P 7nNa  
/** ; <&*rnH  
* @author treeroot sH{4Y-J  
* @since 2006-2-2 1_9<3,7  
* @version 1.0 j(m.$:  
*/ Fv~20G (O  
public class ImprovedQuickSort implements SortUtil.Sort { <0b)YJb4M  
c~z82iXNO  
private static int MAX_STACK_SIZE=4096; kW;+|qs^  
private static int THRESHOLD=10; #Y*X<L  
/* (non-Javadoc) kD=WO4}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,{M^-3C  
*/ ZrPbl "`7  
public void sort(int[] data) { KN<S}3MN  
int[] stack=new int[MAX_STACK_SIZE]; zHA!%>%'  
R3x3]]D  
int top=-1; jrr EAp  
int pivot; W>) M5t4i  
int pivotIndex,l,r; ^2Fei.?T.  
2bJQTk_S  
stack[++top]=0; &]`(v}`]  
stack[++top]=data.length-1; ''yB5#^w(  
r_ I5. gK  
while(top>0){ "W6uV!  
int j=stack[top--]; gG0!C))8  
int i=stack[top--]; BXtCSfY $  
3{'Ne}5%I  
pivotIndex=(i+j)/2; 5rw 7;'  
pivot=data[pivotIndex]; [tlI!~Z  
Bt@^+vH ~  
SortUtil.swap(data,pivotIndex,j); Q# ~Q=T'<  
ur)9x^y  
file://partition Of*Pw[vD  
l=i-1; u+Y\6~=+  
r=j; 6 Q%jA7  
do{ fObg3S92  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); v- 2:(I V  
SortUtil.swap(data,l,r); CAfGH!l!  
} ((H^2KJn  
while(l SortUtil.swap(data,l,r); ZGexdc%  
SortUtil.swap(data,l,j); wxKX{Bs  
ck: T,F{}  
if((l-i)>THRESHOLD){ my(2;IJ#{  
stack[++top]=i; J%u=Ucdh  
stack[++top]=l-1; 0(eB ZdRO  
} ;rF\kX&Jh  
if((j-l)>THRESHOLD){ )(bW#-  
stack[++top]=l+1; h;p>o75O  
stack[++top]=j; YWe{juXSw  
} mk;&yh  
dG@%jD)  
} %RTBV9LIXr  
file://new InsertSort().sort(data); Lt u'W22  
insertSort(data); e|)hG8FlF  
} CyJEY-  
/** NP0\i1P>.?  
* @param data Rw"sJ)/  
*/ nCUg ,;_=  
private void insertSort(int[] data) { v\c>b:AofD  
int temp; e%svrJ2   
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); \nXtH}9ZF  
} =$u! 59_dE  
} SW H2  
} RSfQNc9Z  
2GP=&K/A  
} [)H&'5 +F  
Ur9?Td'*>  
归并排序: j]{_s"O  
:*I# n  
package org.rut.util.algorithm.support; _GV:HOBi  
6V$Avg\6\  
import org.rut.util.algorithm.SortUtil; xcd#&  
(ceNO4"cZ  
/** X3{G:H0\p  
* @author treeroot PY{ G [  
* @since 2006-2-2 F}F&T  
* @version 1.0 Lf16j*}-Q  
*/ sZjQ3*<-r  
public class MergeSort implements SortUtil.Sort{ G? ])o5  
<`.X$r*  
/* (non-Javadoc) s]HOGJJz  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P@Hs`=  
*/ w^Sz#_2  
public void sort(int[] data) { = i$Fl{vH  
int[] temp=new int[data.length]; {:Orn%Q  
mergeSort(data,temp,0,data.length-1); ( Z619w  
} y^;#&k!  
x.]i }mt  
private void mergeSort(int[] data,int[] temp,int l,int r){ @Pm>sY}d<I  
int mid=(l+r)/2; $:8x(&+/@  
if(l==r) return ; V\>K]mwD  
mergeSort(data,temp,l,mid); ap.K=-H  
mergeSort(data,temp,mid+1,r); rA3$3GLQ-  
for(int i=l;i<=r;i++){ vq0Vq(V=  
temp=data; 5y d MMb  
} p)jk>j B  
int i1=l; rV2WnAb[H&  
int i2=mid+1; :y+2*lV  
for(int cur=l;cur<=r;cur++){ ]s]vZ  
if(i1==mid+1) RmI]1S_=  
data[cur]=temp[i2++]; { d=^}-^   
else if(i2>r) iJ-23_D  
data[cur]=temp[i1++]; 2a-w% (K  
else if(temp[i1] data[cur]=temp[i1++]; |nc@"OJ  
else I& 2c&yO  
data[cur]=temp[i2++]; IshKH -  
} Vy6qbC-Kt  
} VyXKZ%\dQ/  
4;w;'3zq  
} "7 4-4  
dz:E?  
改进后的归并排序: h:W;^\J:-  
V_R@o3kv;  
package org.rut.util.algorithm.support; xR-%L  
F0pir(n-  
import org.rut.util.algorithm.SortUtil; [glLre^  
35A|BD) q  
/** 5-|:^hU9  
* @author treeroot ,-$LmECg  
* @since 2006-2-2 ,g%0`SO  
* @version 1.0 4qO+_!x{)  
*/ GOj-)i/_  
public class ImprovedMergeSort implements SortUtil.Sort { ot,jp|N>f~  
&4{KV.  
private static final int THRESHOLD = 10; <Q3oT  
RU'=ERYC  
/* Pj[PIz  
* (non-Javadoc) fX(3H1$"  
* {'N Z.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p09HL%~R  
*/ 3r<~Q7e  
public void sort(int[] data) { ^?-:'<4q$  
int[] temp=new int[data.length]; V3 9g,=`b%  
mergeSort(data,temp,0,data.length-1); 5 f@)z"j  
} 4~ q5,^kgB  
/1Qr#OJ(]  
private void mergeSort(int[] data, int[] temp, int l, int r) { &VhroHO  
int i, j, k; ]S&&|Fc  
int mid = (l + r) / 2; i)o2klIkB  
if (l == r) ."TxX.&HE  
return; J &o |QG  
if ((mid - l) >= THRESHOLD) h2)yq:87  
mergeSort(data, temp, l, mid); e h&IPU S  
else T]R|qlZ  
insertSort(data, l, mid - l + 1); xj<Rp|7&  
if ((r - mid) > THRESHOLD) Um }  
mergeSort(data, temp, mid + 1, r); OPetj.C/a  
else %G3h?3  
insertSort(data, mid + 1, r - mid); FG PB:  
m-%E-nr  
for (i = l; i <= mid; i++) { wa(8Hl|Y  
temp = data; '@cANGg7[  
} xVf| G_5$  
for (j = 1; j <= r - mid; j++) { 6 +Sxr  
temp[r - j + 1] = data[j + mid]; z F_M*8=  
} BIb4h   
int a = temp[l]; $Ad{Z  
int b = temp[r]; N@;?CKU  
for (i = l, j = r, k = l; k <= r; k++) { KLU-DCb%  
if (a < b) {  jPC[_g  
data[k] = temp[i++]; 9V'%<pk''(  
a = temp; Eou~P h*t  
} else { ~< P 0]ju  
data[k] = temp[j--]; a[v0%W ]u  
b = temp[j]; .0p0_f=  
} ZWii)0'PV  
} R]Vt Y7}i,  
} z(o,m3@v  
O ~(pg  
/** 9TU88]  
* @param data 1;d$#j  
* @param l E_gD:PPU5  
* @param i t![7uU.W  
*/ Qf58ig-vCY  
private void insertSort(int[] data, int start, int len) { 2{M^,=^>  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); V GL aN%|  
} t$ +?6E  
} @M<|:Z %.@  
} yTyj'-4  
} x9NEFtqjm  
".f ;+wH  
堆排序: [N FFB96  
iF*:d  
package org.rut.util.algorithm.support; LO'**}vm  
-Q2, "  
import org.rut.util.algorithm.SortUtil; Bm.afsM;  
F^l[GdUosK  
/** Y4%:7mw~=  
* @author treeroot DDvh4<Hk  
* @since 2006-2-2 s J\BF  
* @version 1.0 ke{8 ^X~#  
*/ S,D8F&bg  
public class HeapSort implements SortUtil.Sort{ "lQ*1.i  
?M$.+V{a  
/* (non-Javadoc) 3NZK*!@ '  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) s|@6S8E  
*/ -)s qc P  
public void sort(int[] data) { KTK <gV9:  
MaxHeap h=new MaxHeap(); (w&F/ynO:  
h.init(data); %/EVUN9=  
for(int i=0;i h.remove(); /TE_W@?^  
System.arraycopy(h.queue,1,data,0,data.length); |HU@ >  
} .R`5 Qds*l  
)js)2L~  
private static class MaxHeap{ #XK2Ien)Z  
M-\Y"]sW  
void init(int[] data){ ?=>+LqP  
this.queue=new int[data.length+1]; Ytgcs( /$  
for(int i=0;i queue[++size]=data; $r@ =*(  
fixUp(size); R[Ll59-  
} :#2Bw]z&z  
} eeIhed9  
|].pDwgt  
private int size=0; })uGRvz  
$GYm6x\4  
private int[] queue; ko1J094Y%  
 0,r}o  
public int get() { tzZ63@cm  
return queue[1]; PiYY6i0  
} 6\L0mcXR!  
z25lZI" X`  
public void remove() { %?LOs H   
SortUtil.swap(queue,1,size--); aGK?x1_  
fixDown(1); @*>@AFnf\Z  
} )@N2  
file://fixdown ^<;V]cY`  
private void fixDown(int k) { ,_|]Ufr!a  
int j; hp8%.V$f  
while ((j = k << 1) <= size) { f6|KN+.  
if (j < size %26amp;%26amp; queue[j] j++; Vw[6t>`  
if (queue[k]>queue[j]) file://不用交换 l;af~ef)'  
break; Ok>gh2e[c  
SortUtil.swap(queue,j,k); '"y|p+=j:  
k = j; o5xAav"+>  
} `))\}C@k  
} H|,Oswk~-  
private void fixUp(int k) {  zG+R5:  
while (k > 1) { 33jovK 2  
int j = k >> 1; >Wh}f3C  
if (queue[j]>queue[k]) U QE qX  
break; vQ<90Z xqB  
SortUtil.swap(queue,j,k); %509\;el  
k = j; zs%Hb48V   
} vesJEaw7  
} L{:9Cx!F  
?P4w]a  
} YiYV>gaf"H  
vK(i 9>;7  
} lW<PoT  
|4 v0:ETb$  
SortUtil: -D xL0:E  
-<Hu!V`+  
package org.rut.util.algorithm; C(S'#cm  
1<+2kBuY  
import org.rut.util.algorithm.support.BubbleSort; kR]!Vr*yh  
import org.rut.util.algorithm.support.HeapSort; ?!wgH9?8  
import org.rut.util.algorithm.support.ImprovedMergeSort; 'jmTXWq*  
import org.rut.util.algorithm.support.ImprovedQuickSort; "dsU>3u  
import org.rut.util.algorithm.support.InsertSort; } $uxJB  
import org.rut.util.algorithm.support.MergeSort; }>)@WL:q  
import org.rut.util.algorithm.support.QuickSort; lJ+0P2@h*  
import org.rut.util.algorithm.support.SelectionSort; x8!ol2\`<  
import org.rut.util.algorithm.support.ShellSort; 9k9_mjLZ  
RZ6xdq}>  
/** Q F-LU  
* @author treeroot UUF ;p2{f  
* @since 2006-2-2 ub7zA!%  
* @version 1.0 6UevpDB  
*/ df*5,NV'-*  
public class SortUtil { iQ4);du  
public final static int INSERT = 1; cKN$ =gd  
public final static int BUBBLE = 2; ex+\nD>t4  
public final static int SELECTION = 3; o]Ol8I  
public final static int SHELL = 4; xO1[>W  
public final static int QUICK = 5; 1mfs 4  
public final static int IMPROVED_QUICK = 6; Qhs/E`k4  
public final static int MERGE = 7; uMut=ja(U  
public final static int IMPROVED_MERGE = 8; /D5`   
public final static int HEAP = 9; ;=geHiQHA  
I+Jm>XN  
public static void sort(int[] data) { L,SGT8lL  
sort(data, IMPROVED_QUICK); dcLA1sN,  
} k4,BNJt'Z  
private static String[] name={ ?6(I V]  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" UJ0<%^f  
}; rm4.aO~-F  
vy_D>tp  
private static Sort[] impl=new Sort[]{ '7D,m H  
new InsertSort(), 4%2~Wi8  
new BubbleSort(), !l|5z G  
new SelectionSort(), cZH-"  
new ShellSort(), XQ%?  
new QuickSort(), 4 SHU  
new ImprovedQuickSort(), Rop'e8Q  
new MergeSort(), 8 %%f%y  
new ImprovedMergeSort(), .~Fp)O:!  
new HeapSort() TlI<1/fP}  
}; Rp*R:3 C  
_9tK[ /h  
public static String toString(int algorithm){ %YSpCI  
return name[algorithm-1]; ?q(\=;Y  
} &ZghMq~  
`6 /$M!4$  
public static void sort(int[] data, int algorithm) { XO-Prs  
impl[algorithm-1].sort(data); u$*56y   
} fGw^:,B  
6An9S%:_  
public static interface Sort { chV9_(8  
public void sort(int[] data); 6el;Erp  
} fMGbODAvY  
cE`6uq7 p  
public static void swap(int[] data, int i, int j) { vo\fUT@k  
int temp = data; 2-=\~<)  
data = data[j]; j<2m,~k`V  
data[j] = temp; N2oRJ,:B  
} {GKy'/[  
} $&$w Y/F  
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