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
  • 8140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。  fBWJ%W  
插入排序: T?]kF-   
c2\rjK   
package org.rut.util.algorithm.support; &t*8oNwSs  
TH(Lzrbg  
import org.rut.util.algorithm.SortUtil; Ky '3z"  
/** S`2mtg  
* @author treeroot /,uSCITD  
* @since 2006-2-2 Gkodk[VuLs  
* @version 1.0 pT ocqJ22  
*/ :9x084ESR)  
public class InsertSort implements SortUtil.Sort{ `3sy>GU?  
[nN\{"~O  
/* (non-Javadoc) %+7T9>+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Vr/` \441  
*/ ZXsY-5$#d-  
public void sort(int[] data) { 1hMX(N&|  
int temp; =~W0~lxX  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ` r'0"V  
} S4{Mu(^xT  
} %];h|[ax]  
} 1 ~B<  
Ah"'hFY  
} 4*D fI  
Kixr6\  
冒泡排序: Q0L@.`~  
m>abK@5na  
package org.rut.util.algorithm.support; :uIi ?  
&Xn8oe  
import org.rut.util.algorithm.SortUtil; i>]<*w  
Av;q:x?  
/** 94p:|5@  
* @author treeroot B.Zm$JZ:  
* @since 2006-2-2 veX"CY`hn  
* @version 1.0 ^ =/?<C4  
*/ 6 <qwP?WN  
public class BubbleSort implements SortUtil.Sort{ sx[&4 k[  
%eutfM-?6  
/* (non-Javadoc) ;Oi[:Ck  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \&\_>X.,  
*/ 20.-;jK  
public void sort(int[] data) { ;Txv -lfS  
int temp; u6iU[5  
for(int i=0;i for(int j=data.length-1;j>i;j--){ 56bud3CVs  
if(data[j] SortUtil.swap(data,j,j-1); nI`f_sp  
} wZo.ynXT  
} 6=G~6Qu  
} 5M<' A=  
} ^8';8+$  
nL":0!DTRD  
} !y qa?\v9  
R%Ui6dCLo  
选择排序: `FzYvd"N  
\ifK~?  
package org.rut.util.algorithm.support; FUyB"-<  
s.R-<Y 3  
import org.rut.util.algorithm.SortUtil; 68koQgI[^  
|b$>68:  
/** F}6DB*  
* @author treeroot wDT>">&d  
* @since 2006-2-2 Z{,GZT  
* @version 1.0 3wN?|N  
*/ Yo~LckFF  
public class SelectionSort implements SortUtil.Sort { "wnpiB}  
;t;Y.*&=S  
/* ? fbgU  
* (non-Javadoc) @pF fpHq?>  
* ZR;8r Z](  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M#\  <  
*/ E[|s>Xv~  
public void sort(int[] data) { BR& Aq  
int temp; hzT{3YtY2  
for (int i = 0; i < data.length; i++) { nabBU4;h  
int lowIndex = i; AfbB~LlBq  
for (int j = data.length - 1; j > i; j--) { v"P&` 1=T  
if (data[j] < data[lowIndex]) { mQd4#LJ_  
lowIndex = j; _pz,okO[V  
} ~ON1Zw[+  
} *#&k+{a^2  
SortUtil.swap(data,i,lowIndex); |^7f\.oF  
} f7XQ~b  
} &a%WM   
gk!E$NyE  
} Jv_.itc  
C5O5S:|'  
Shell排序: w5F4"nl#O}  
./'~];&  
package org.rut.util.algorithm.support; <Rcu%&;i  
kz ZDtI)  
import org.rut.util.algorithm.SortUtil; S  ~@r  
{]wIM^$6+  
/** ~7dM!g{W  
* @author treeroot ~L- 0~  
* @since 2006-2-2 A}t%;V2  
* @version 1.0 NFk}3w:  
*/ [##`U m  
public class ShellSort implements SortUtil.Sort{ 403[oOj  
YBb)/ZghY  
/* (non-Javadoc) #O2wyG)oU  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [8>z#*B  
*/ BdN8 ^W  
public void sort(int[] data) { LHs-&  
for(int i=data.length/2;i>2;i/=2){ ,Bisu:v6FW  
for(int j=0;j insertSort(data,j,i); ?e F@Q !h  
} )v[XmJ>H~o  
} di~]HUZh)  
insertSort(data,0,1); j|:dYt`WM  
} I Byf_E;r  
WtEI] WO  
/** !ZFr7Xz  
* @param data :.*HQt9N  
* @param j \7pipde  
* @param i ~9Z h,p ;  
*/ t#C,VwMe[  
private void insertSort(int[] data, int start, int inc) { !Eq#[Gs  
int temp; ]UDd :2yt  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); q[7CPE0n  
} 9<yAQ?7 L  
} rh@r\ H@j  
} +'%@!  
bS>R5*Zp  
} ^:`oP"%-T  
~12_D'8D[  
快速排序: cAD[3b[Gk  
N_UQ  
package org.rut.util.algorithm.support; 9YB2 e84j  
(+* ][|T  
import org.rut.util.algorithm.SortUtil; et=7}K]l  
QV7,G9  
/** cv}aS_`f  
* @author treeroot <OTWT`G2  
* @since 2006-2-2 P?kx  
* @version 1.0 -<_QF82  
*/ 6?N4l ]l  
public class QuickSort implements SortUtil.Sort{ O|QUNr9  
X0`j-*,FX  
/* (non-Javadoc) m6^ 5S  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lsk_P&M  
*/ >c<pDNt?  
public void sort(int[] data) { +R!zs  
quickSort(data,0,data.length-1); ~g6"'Cya?k  
} 7paUpQit  
private void quickSort(int[] data,int i,int j){  EIr@g  
int pivotIndex=(i+j)/2; _a](V6  
file://swap OTj,O77k  
SortUtil.swap(data,pivotIndex,j); ._?V%/  
?v:ZU~i  
int k=partition(data,i-1,j,data[j]); IV'p~t  
SortUtil.swap(data,k,j); c!It ^*  
if((k-i)>1) quickSort(data,i,k-1); Z7fg 25  
if((j-k)>1) quickSort(data,k+1,j); qj&b o  
owvS/"@  
} fAGctRGH  
/** `H\)e%]  
* @param data v5_7r%Hiw  
* @param i "+)K |9T#  
* @param j OO nX`  
* @return CK0l9#g  
*/ 3X;{vO\a1  
private int partition(int[] data, int l, int r,int pivot) { Zb(E:~h\  
do{ AEY$@!8  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); [$pmPr2  
SortUtil.swap(data,l,r); j(iuz^I  
} <:&de8bT  
while(l SortUtil.swap(data,l,r); >{C\H.N  
return l; t6+YXjXK  
} `0{ S3v  
5,1{Tv`  
} U&UKUACn"  
t V03+&jF  
改进后的快速排序: kZLMtj-   
Tk*w3c"$  
package org.rut.util.algorithm.support; T>A{ qu  
dH\XO-Z7v  
import org.rut.util.algorithm.SortUtil; >O#grDXb  
24u x  
/** iXFP5a>|  
* @author treeroot 5rb-U7 /  
* @since 2006-2-2 9'nH2,_  
* @version 1.0 )0k']g5  
*/ i0:>Nk  
public class ImprovedQuickSort implements SortUtil.Sort { {hQ6K)s  
I9Eu',  
private static int MAX_STACK_SIZE=4096; ye%iDdf  
private static int THRESHOLD=10; _OMpIdY,R*  
/* (non-Javadoc) TW7:q83{l  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Z o=]dBp.  
*/ TJ(K3/)Z  
public void sort(int[] data) { >xqM5#m`E$  
int[] stack=new int[MAX_STACK_SIZE]; (gwj)?:  
"0CjP+1k  
int top=-1; V5mlJml2(  
int pivot; e$e#NoN  
int pivotIndex,l,r; C$d>_ r  
t{dSX?<nt  
stack[++top]=0; AQss4[\Dx  
stack[++top]=data.length-1; } fZ`IOf  
h5"Ov,K3[  
while(top>0){ ibpzeuUl  
int j=stack[top--]; x%N\5 V1  
int i=stack[top--]; _:g&,2bc  
eq[Et +  
pivotIndex=(i+j)/2; MFt*&%,JX  
pivot=data[pivotIndex]; l"(6]Z 4  
G8Z4J7^  
SortUtil.swap(data,pivotIndex,j); ;eL9{eF  
$t~@xCi]S  
file://partition Dg HaOAdU  
l=i-1; Rp9fO?ZjHt  
r=j; "TcW4U9  
do{ /) 4GSC}Gg  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); "O[j!fG8,  
SortUtil.swap(data,l,r); 7.Kc:7  
} D${={x  
while(l SortUtil.swap(data,l,r); X2|Y  
SortUtil.swap(data,l,j); kc `V4b%  
bzN-*3YE=  
if((l-i)>THRESHOLD){ laKuOx}  
stack[++top]=i; ao" %WX  
stack[++top]=l-1; Kl{>jr8B3  
} uX/$CM  
if((j-l)>THRESHOLD){ +|iYg/2  
stack[++top]=l+1; 4+;$7"fJ  
stack[++top]=j; N2'qpxOLI  
} &MZ$j46  
I` K$E/ns  
} YgUH'P-  
file://new InsertSort().sort(data); RyJ 1mAC  
insertSort(data); F>je4S;  
} *OJ/V O  
/** !" #9<~Q,p  
* @param data IP`6bMd  
*/ #11NPo9  
private void insertSort(int[] data) { xT&(n/  
int temp; B(?Yw>Xd[  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); J_;N:7'p  
} DZ7 gcC  
} TGXa,A{  
} xkNyvqcw  
le+R16Z  
} RO;Bl:x4  
bzDIhnw  
归并排序: Ji1Pz)fq  
QxuhGA  
package org.rut.util.algorithm.support; Hs?e0Z=N  
G+xt5n.%  
import org.rut.util.algorithm.SortUtil;  T9)nQ[  
FLg*R/  
/** a,F&`Wg  
* @author treeroot C51bc6V  
* @since 2006-2-2 ih,%i4<}6m  
* @version 1.0 WwH+E]^e+  
*/ *<N3_tx"  
public class MergeSort implements SortUtil.Sort{ uw\2qU3gk  
 ~ ~uAc_  
/* (non-Javadoc) |@,|F:h<M  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) UYk>'\%H0  
*/ `Y-|H;z  
public void sort(int[] data) { CQel3Jtt.  
int[] temp=new int[data.length]; ?D,=37  
mergeSort(data,temp,0,data.length-1); [7(-T?_  
} 6sIL.S~c)  
+3s%E{  
private void mergeSort(int[] data,int[] temp,int l,int r){ *  tCS  
int mid=(l+r)/2; P%)gO  
if(l==r) return ; U\/5;Txy(  
mergeSort(data,temp,l,mid); ,+`61J3W  
mergeSort(data,temp,mid+1,r); #;n +YM">:  
for(int i=l;i<=r;i++){ 4Mk-2 Dx  
temp=data; {G <kA(Lm  
} J=.`wZQkS  
int i1=l; DAo~8H  
int i2=mid+1; b jAnaya  
for(int cur=l;cur<=r;cur++){ V8eB$in  
if(i1==mid+1) rc+C?)S  
data[cur]=temp[i2++]; NmMIQ@K  
else if(i2>r) y_xnai  
data[cur]=temp[i1++]; iU6Gp-<M ,  
else if(temp[i1] data[cur]=temp[i1++]; U hIDRR  
else ih?^t(i  
data[cur]=temp[i2++]; `eu9dLz H  
} 7'NwJ,$6\  
} 4f(Kt,0  
=^H4Yck/5  
} @ HZKc\1  
wts=[U`(  
改进后的归并排序: T~h5B(J;  
jxJv.  
package org.rut.util.algorithm.support; :4v3\+T  
g$. \  
import org.rut.util.algorithm.SortUtil; '!f5?O+E  
p4VeRJk%  
/** hHqh{:q{v  
* @author treeroot Kscd}f)yx?  
* @since 2006-2-2 ]kG(G%r|M  
* @version 1.0 nx0K$ Ptq  
*/ #+$Q+Z|6k  
public class ImprovedMergeSort implements SortUtil.Sort { OFje+S  
|yo\R{&6  
private static final int THRESHOLD = 10; gWY "w!f  
/%lZu^  
/* =_YG#yS  
* (non-Javadoc) 5q "ON)x  
* d GP*O  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4 Jx"A\5*G  
*/ XD"_Iq!  
public void sort(int[] data) { !%dN<%Ah  
int[] temp=new int[data.length]; <3,<\ub  
mergeSort(data,temp,0,data.length-1); B c2p(z4  
} wgd/(8d  
MQin"\  
private void mergeSort(int[] data, int[] temp, int l, int r) { ? `J[[",  
int i, j, k; gk`zA  
int mid = (l + r) / 2; H4]Ul eU  
if (l == r) <V>dM4Mkr  
return; l3 DYg  
if ((mid - l) >= THRESHOLD) 7t.!lh5G%  
mergeSort(data, temp, l, mid); 7 I>G{  
else A=Ss6 -Je  
insertSort(data, l, mid - l + 1); Fv<`AU  
if ((r - mid) > THRESHOLD) mS0udHod  
mergeSort(data, temp, mid + 1, r); z2Z^~, i  
else s=42uKz  
insertSort(data, mid + 1, r - mid); TwgrRtj'  
GRY2?'`  
for (i = l; i <= mid; i++) { "--t e  
temp = data; 0?>dCu\  
} }pJwj  
for (j = 1; j <= r - mid; j++) { Y3O#Q)-j$  
temp[r - j + 1] = data[j + mid]; W0}B'VS.I  
} }- Wa`t7U  
int a = temp[l]; 8zMu7,E  
int b = temp[r]; [|l?2j\  
for (i = l, j = r, k = l; k <= r; k++) { K(q-?n`<  
if (a < b) { $[yFsA6  
data[k] = temp[i++]; xZV1k~C  
a = temp; @}kv-*  
} else { <jed!x  
data[k] = temp[j--]; cYqfsd# B  
b = temp[j]; `Qqk<o  
} +E1h#cc)  
} Bm]8m=p  
} 85GKymz$P  
XQS9,Hl  
/** q/n,,!  
* @param data }*L(;r)q  
* @param l #UbF9})q  
* @param i k?'B*L_Mzv  
*/ RZ+`T+zL  
private void insertSort(int[] data, int start, int len) { '} $Dgp6e  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); &iV,W4  
} v,ju!I0.  
} ttu&@ =  
} ~*wk6&|  
} @*sWu_ -Y%  
h*v8#\b$J_  
堆排序: #f+$Ddg*  
l'eyq}&  
package org.rut.util.algorithm.support; !50[z:  
*M"}z  
import org.rut.util.algorithm.SortUtil; KRA/MQ^7~U  
ow]053:i  
/** hvaSH69*m  
* @author treeroot !@v7Zu43,  
* @since 2006-2-2 Q 7?#=N?  
* @version 1.0 /Sh#_\x  
*/ ^ (FdXGs[  
public class HeapSort implements SortUtil.Sort{ 0vw4?>Jf@  
|)*fRL,  
/* (non-Javadoc) Nal9M[]c  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3p'I5,}  
*/ ,l)^Ft`5  
public void sort(int[] data) { 5@BBo eG  
MaxHeap h=new MaxHeap(); %QP0  
h.init(data); U-3i  
for(int i=0;i h.remove(); d}4Y(   
System.arraycopy(h.queue,1,data,0,data.length); >j QWn@  
} aYSCw 3C<  
|/)${*a4n  
private static class MaxHeap{ VFys.=  
~ (jKz}'~U  
void init(int[] data){ y9Usn8  
this.queue=new int[data.length+1]; Kh_Lp$'0uM  
for(int i=0;i queue[++size]=data; @nCd  
fixUp(size); bXNk%W[n  
} K>@+m  
} 73\JwOn~  
\}|o1Xh2  
private int size=0; ?o|f':  
ZNvEW  
private int[] queue; gK'1ZLdZ2  
P`cq H(   
public int get() { XMu9Uk{|  
return queue[1]; "[ZB+-|[0  
} ][p>Y>:b-  
yL-YzF2  
public void remove() { )`O~f_pIC  
SortUtil.swap(queue,1,size--); !*B'?|a<\  
fixDown(1); 85Otss/mM  
} o9dY9o+Z  
file://fixdown \6Zr  
private void fixDown(int k) { yj.7'{mA  
int j; E vg_q>  
while ((j = k << 1) <= size) { Lo N< oj5  
if (j < size %26amp;%26amp; queue[j] j++; ?q{ ,R"  
if (queue[k]>queue[j]) file://不用交换 1oW ED*B  
break; _)>_{Pm  
SortUtil.swap(queue,j,k); A#J`;5!Sc  
k = j; %|q>pin2  
} CU@Rob}s  
} %D%8^Zd_  
private void fixUp(int k) { 1e{IC=  
while (k > 1) { MS 81sN\d  
int j = k >> 1; '6cWS'9"  
if (queue[j]>queue[k]) }o?APvd  
break; \kMefU  
SortUtil.swap(queue,j,k); BMG3|N^  
k = j; qGB{7-ru  
} &;[Io  
} pS'FI@.'{  
1Vrh4g.l  
} $Y/9SV,  
iXVe.n  
} ;RC{<wBTx  
=C8?M  
SortUtil: 7WkB>cn  
7e|s wJ>4  
package org.rut.util.algorithm; '$ =>  
zuJ@E=7  
import org.rut.util.algorithm.support.BubbleSort; yW1)vD7  
import org.rut.util.algorithm.support.HeapSort; >,$_| C  
import org.rut.util.algorithm.support.ImprovedMergeSort; mGJKvJF   
import org.rut.util.algorithm.support.ImprovedQuickSort; jHE}qE~>5  
import org.rut.util.algorithm.support.InsertSort; ff,pvk8N5  
import org.rut.util.algorithm.support.MergeSort; 93("oBd[s(  
import org.rut.util.algorithm.support.QuickSort; N~goI#4  
import org.rut.util.algorithm.support.SelectionSort; +./H6!  
import org.rut.util.algorithm.support.ShellSort; DEG[Z7Ju  
k;AD`7(=  
/** Z<1FSk,[  
* @author treeroot Ui_8)z _  
* @since 2006-2-2 c'>/  
* @version 1.0 la0BiLzb]  
*/ JQ8fdP A  
public class SortUtil { A}G7l?V&  
public final static int INSERT = 1; u~7hWiY<2  
public final static int BUBBLE = 2; _~IR6dKE  
public final static int SELECTION = 3; 9ifDcYl  
public final static int SHELL = 4; rb5~XnJk  
public final static int QUICK = 5; #%iDT6  
public final static int IMPROVED_QUICK = 6; NO "xL,  
public final static int MERGE = 7; `w#Oih!6A|  
public final static int IMPROVED_MERGE = 8; p Dx1z|@z  
public final static int HEAP = 9; WejY y|  
LSa,1{  
public static void sort(int[] data) { ieDk;  
sort(data, IMPROVED_QUICK); 8Wrh]egu1  
} l2zFKCGF(  
private static String[] name={ s @&`f{  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ck ]Do!h  
}; V+* P2|  
lGPUIoUo  
private static Sort[] impl=new Sort[]{ GY6`JWk  
new InsertSort(), aktU$Wbwl  
new BubbleSort(), \\r)Ue]  
new SelectionSort(), 3m]4=  
new ShellSort(), XX7{-Y y  
new QuickSort(), bU>U14ix<  
new ImprovedQuickSort(), wKtl+}}  
new MergeSort(), w k(VR  
new ImprovedMergeSort(), oX#Q<2z*  
new HeapSort() c(3~0Yr  
}; ^W`<gR  
/7a BDc-v  
public static String toString(int algorithm){ b*;Si7-  
return name[algorithm-1]; 0t^M3+nc  
} s1M Erd  
oibsh(J3  
public static void sort(int[] data, int algorithm) { $*^kY;  
impl[algorithm-1].sort(data); &vo--V1|  
} *?5*m+  
#X%~B'  
public static interface Sort {  A sQ)q  
public void sort(int[] data); +DW~BS3  
} 8UXjm_B^'  
{'XggI%  
public static void swap(int[] data, int i, int j) { `n#H5Oyn  
int temp = data; <Y*+|T+&d  
data = data[j]; j2Cks_$:  
data[j] = temp; Fz3fwLawI  
} )bS~1n_0  
} .R) D3NZp  
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:
10+5=?,请输入中文答案:十五