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
  • 5235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。 |*1xrM:v~  
插入排序: >#?iO]).  
Om6Mmoqh  
package org.rut.util.algorithm.support; niAZ$w  
WKOI\  
import org.rut.util.algorithm.SortUtil; #G~wE*VR$  
/** RNe9h lr  
* @author treeroot vX 1W@s  
* @since 2006-2-2 Ys%'#f  
* @version 1.0 B!iFmkCy  
*/ FE}s#n_Pd  
public class InsertSort implements SortUtil.Sort{ kwc*is  
23k)X"5  
/* (non-Javadoc) oN ;-M-(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pU@YiwP"]x  
*/ IywiCMjH  
public void sort(int[] data) { V8T#NJ  
int temp; hpas'H>J  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); J@gm@ jLc  
} K4Y'B o4  
} Z*Zc]hD  
} 0<3E  
AHWh}~Yi  
} p9Z ].5Pd"  
BjB&[5?z  
冒泡排序: ,3k@L\$.x  
0}D-KvjyP  
package org.rut.util.algorithm.support; 4uPH  
y:C)%cv}*  
import org.rut.util.algorithm.SortUtil; L9$&-A9ix  
$)f"K  
/** i0b.AA  
* @author treeroot \#2 s4RCji  
* @since 2006-2-2 {dBB{.hX  
* @version 1.0 ^8Z@^M&O"  
*/ uct=i1+ fE  
public class BubbleSort implements SortUtil.Sort{ y]7%$* <  
jQ)L pjS1  
/* (non-Javadoc) re/xs~  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /Bh>  
*/ 6UO$z-e  
public void sort(int[] data) { OelU D/[$  
int temp; Xout:dn  
for(int i=0;i for(int j=data.length-1;j>i;j--){ [.ey_}X8  
if(data[j] SortUtil.swap(data,j,j-1); 3Qk/ Ll  
} nPcxknl(pd  
} a^(2q{*  
} ^glX1 )  
} {N "*olx  
9lKRL'QR  
} }|SIHz!R  
"% SX@  
选择排序:  w"BIv9N  
X8i[fk1.R  
package org.rut.util.algorithm.support; X:U=MWc>  
CX]RtV!  
import org.rut.util.algorithm.SortUtil; *!i,?vn  
JV&Zwbu  
/** ]W+)ee|D  
* @author treeroot 5`{=`  
* @since 2006-2-2 MCM/=M'y  
* @version 1.0 O/(3 87=U  
*/ Shs')Zs bv  
public class SelectionSort implements SortUtil.Sort { \zBd<H4S:  
ftxTX3X  
/* =,O /,2)  
* (non-Javadoc) )dqR<)  
* 7:z>+AM[r  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (x}A_ i  
*/ .l7j8 }  
public void sort(int[] data) { /9P^{ OZ;y  
int temp; A 0 S8Dh$  
for (int i = 0; i < data.length; i++) { 6={IMkmA  
int lowIndex = i; RXUA!=e  
for (int j = data.length - 1; j > i; j--) { re]%f"v:5  
if (data[j] < data[lowIndex]) { Ndo}Tk!  
lowIndex = j; J_|7$ l/  
} axOi 5  
} $y8mK|3.3u  
SortUtil.swap(data,i,lowIndex); .#"1bRWpZ  
} w<Zdq}{jO  
} !X%S)VSMU  
'^8g9E .4K  
} (Z5q&#f  
[?A&xqO3  
Shell排序: fn3*2  
Ob7zu"zr  
package org.rut.util.algorithm.support; L^6"' #  
"pOqd8>]  
import org.rut.util.algorithm.SortUtil; " 98/HzR  
K1/ U (A  
/** %B[YtWqm`/  
* @author treeroot :wFb5"  
* @since 2006-2-2 fdN45in=>  
* @version 1.0 TFNUv<>X  
*/ j[_t6Z  
public class ShellSort implements SortUtil.Sort{ +d.u##$  
_L8Mpx*E  
/* (non-Javadoc) hJecCOA)'  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >9 q]>fJ  
*/ G!nl'5|y  
public void sort(int[] data) { )t*S 'R  
for(int i=data.length/2;i>2;i/=2){ < }<#W/  
for(int j=0;j insertSort(data,j,i); 0Wjd-rzc,  
} XAw2X;F%  
} lQ+Ru8I  
insertSort(data,0,1); sq6>DuBZz  
} T@B"BoKU  
^cB49s+{e  
/** su,`q  
* @param data rH[5~U  
* @param j dz{#"No0  
* @param i Ii|uGxEc  
*/ pTc$+Z7 3  
private void insertSort(int[] data, int start, int inc) { #E*@/ p/  
int temp; +G<}JJ'V  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); >?^~s(t  
} u wH)$Pl  
} >Kz_My9  
} ,jAx%]@,I  
yb[{aL^4%  
} V+Y|4Y&  
R 4DM_ u  
快速排序: d&/^34gn  
>_rzT9gX&  
package org.rut.util.algorithm.support; ` 52% XI  
j kSc&  
import org.rut.util.algorithm.SortUtil; kTr6{9L  
 -0{T  
/** PthId aN@  
* @author treeroot ;7;zhJs1t  
* @since 2006-2-2 n/ui<&(  
* @version 1.0 {CW1t5$*  
*/ Tm (Q@  
public class QuickSort implements SortUtil.Sort{ _Syre6k  
<]Ij(+J;  
/* (non-Javadoc) FgXu1-  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 29&sydu  
*/ "2*G$\  
public void sort(int[] data) { GwTT+  
quickSort(data,0,data.length-1); ^`l"'6  
} 8dV.nO  
private void quickSort(int[] data,int i,int j){ l\q*%'Pe  
int pivotIndex=(i+j)/2; 6"BtfQ")  
file://swap Q&oC]u(="&  
SortUtil.swap(data,pivotIndex,j); j9{O0[v  
^>3tYg&7  
int k=partition(data,i-1,j,data[j]); L4MxU 2  
SortUtil.swap(data,k,j); $ \? N<W  
if((k-i)>1) quickSort(data,i,k-1); x, G6\QmA  
if((j-k)>1) quickSort(data,k+1,j); i}.{m Et  
5LDQ^n  
} it(LphB8  
/** G> f^ 2  
* @param data CnxK+1n l  
* @param i Nr> c'TH  
* @param j 4JX`>a{<  
* @return LXBbz;vYl  
*/ #JK;& Dg!  
private int partition(int[] data, int l, int r,int pivot) { 8 m%>:}o  
do{ yd7lcb [  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); p:DL:^zx  
SortUtil.swap(data,l,r); nAQyxP%  
} 3!i. Fmo  
while(l SortUtil.swap(data,l,r); fG:PdIJ7_  
return l; Xz;et>UD*B  
} ;X?Ah  
TYs+XJ'Xj  
} u5xU)l3  
>wz;}9v  
改进后的快速排序: 4^ d+l.F  
<_##YSGh,  
package org.rut.util.algorithm.support; }"F ?H:\  
F Q8RK~?`  
import org.rut.util.algorithm.SortUtil; xi '72  
i /O1vU#  
/** (|yRo  
* @author treeroot 4+ASw N9  
* @since 2006-2-2 '5|Q<5!o  
* @version 1.0  ET >S  
*/ [@,OG-"&  
public class ImprovedQuickSort implements SortUtil.Sort { />dB%*  
r1[E{Tpz  
private static int MAX_STACK_SIZE=4096; t_[M &  
private static int THRESHOLD=10; GM)\)\kNF  
/* (non-Javadoc) [;>zqNy  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -/ (DP x  
*/ -mev%lV  
public void sort(int[] data) { c!'A)JD@  
int[] stack=new int[MAX_STACK_SIZE]; Ze [g0"  
Y9IJ   
int top=-1; (lyt"Ty  
int pivot; @<@R=aqE  
int pivotIndex,l,r; '1>g=Ic0  
=oL8d 6nI  
stack[++top]=0; 9;E%U2T7  
stack[++top]=data.length-1; 5}.,"Fbr  
@ A~B ,  
while(top>0){ /3CHE8nSh  
int j=stack[top--]; oso1uAOfp  
int i=stack[top--]; jMm_A#V>p  
N<#S3B?.  
pivotIndex=(i+j)/2; ]jVIpGM  
pivot=data[pivotIndex]; oj,HJH+  
SR&(HH$  
SortUtil.swap(data,pivotIndex,j); #~bU}[{  
Zu2m%=J`  
file://partition @Og\SZhn  
l=i-1; @{J!6YGh  
r=j; x&hvFG3  
do{ Hrd5p+j  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); { 4_I7r  
SortUtil.swap(data,l,r); d-6sC@PB  
} ,wwU` U  
while(l SortUtil.swap(data,l,r); f7EIDFX>pt  
SortUtil.swap(data,l,j); Zd[y+$>  
2.fyP"P L  
if((l-i)>THRESHOLD){ TIK/%T  
stack[++top]=i; A%NK0j$;}  
stack[++top]=l-1; `l[6rf_.  
} 1S*8v 7  
if((j-l)>THRESHOLD){ "4Vi=*2V  
stack[++top]=l+1; p6&LZ=tL3  
stack[++top]=j; htUy2v#V  
} h/0<:eZ*  
v7{ P].M  
} I2t-D1X  
file://new InsertSort().sort(data); p\\P50(-  
insertSort(data); Xm"w,J&  
} 5t"bCzp  
/** 7AGZu?1]M  
* @param data L:t)$iF5+  
*/ %KJ"rvi4K  
private void insertSort(int[] data) { (c|$+B^*  
int temp; Jf %!I  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); U<ku_(2"#  
} "v\ bMuS  
} Q{H!s_6iyv  
} 2 Ft0C2  
XhlI|h-j  
} ;X*K*q  
!^Z[z[  
归并排序: 3X-{2R/ 3  
%KabyvOl)  
package org.rut.util.algorithm.support; g[=\KrTSg  
.-C+0L1j  
import org.rut.util.algorithm.SortUtil; X <ba|(  
`'G),{ j  
/** ^G'yaaLXR  
* @author treeroot haEZp6Z  
* @since 2006-2-2 *#prSS  
* @version 1.0 \28b_,i+  
*/ ~# hE&nq  
public class MergeSort implements SortUtil.Sort{ )E[ Q  
 ?;ALF  
/* (non-Javadoc) 7})!>p )  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +H)!uLva B  
*/ V',m $   
public void sort(int[] data) { ^td!g1"<  
int[] temp=new int[data.length]; jt'Y(u]2  
mergeSort(data,temp,0,data.length-1); S+_A <p  
} 0] :*v?  
O)$N}V0  
private void mergeSort(int[] data,int[] temp,int l,int r){ WQIM2_=M  
int mid=(l+r)/2; J]=aI>Ow  
if(l==r) return ; D*d 3w  
mergeSort(data,temp,l,mid); |h^G$guw  
mergeSort(data,temp,mid+1,r); +s+PnZ%0V  
for(int i=l;i<=r;i++){ Pq{YZMr  
temp=data; 26('V `N  
} ,{`o/F/  
int i1=l; 0btmao-  
int i2=mid+1; cjy0s+>>  
for(int cur=l;cur<=r;cur++){  bbQ 10H  
if(i1==mid+1) 8M3p\}O  
data[cur]=temp[i2++]; xvdnEaWe$  
else if(i2>r) ;:-2~z~~  
data[cur]=temp[i1++]; A3 Rm 0  
else if(temp[i1] data[cur]=temp[i1++]; %4r!7X|O<  
else =XRgT1>e  
data[cur]=temp[i2++]; .^9/ 0.g8t  
} XDrlJvrPL  
} /_zF?5h  
Y>dg10=  
} B Z\EqB  
|$.sB|_ N  
改进后的归并排序: ZaNyNxbp>z  
5Re`D|8  
package org.rut.util.algorithm.support; R uFu,H-  
% Zl_{Q]h  
import org.rut.util.algorithm.SortUtil; %b>y  
35@Ibe~  
/** e%@[d<Ta\  
* @author treeroot  4s1kZ`e  
* @since 2006-2-2 M$>WmG1~D  
* @version 1.0 1^WA  
*/ QX.F1T 2e?  
public class ImprovedMergeSort implements SortUtil.Sort { Be14$7r  
L3G)?rPFC#  
private static final int THRESHOLD = 10; ( 7Ca\H3$  
/k3n{ ?$/  
/* ?^G$;X7B  
* (non-Javadoc)  a`h$lUb-  
* _!CvtUU0Vv  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4Ow Vt&  
*/ o{-USUGj7  
public void sort(int[] data) { gE6y&a  
int[] temp=new int[data.length]; *NwKD:o  
mergeSort(data,temp,0,data.length-1); (W}i287  
} !+*?pq  
{C0OrO2:  
private void mergeSort(int[] data, int[] temp, int l, int r) { j_ywG{Jk  
int i, j, k; 2fL88/'  
int mid = (l + r) / 2; I8-&.RE  
if (l == r) k+m_L{#m5  
return; *>&N t  
if ((mid - l) >= THRESHOLD) K_lCDiqG  
mergeSort(data, temp, l, mid); 9V4V}[%  
else On96N|  
insertSort(data, l, mid - l + 1); S}xDB  
if ((r - mid) > THRESHOLD) (?&_6B.*  
mergeSort(data, temp, mid + 1, r); ! 4^L $  
else %BYlbEx  
insertSort(data, mid + 1, r - mid); yS.fe[  
lA^Kh  
for (i = l; i <= mid; i++) { 6 peM4X  
temp = data; woH3?zR  
} }Bod#|`  
for (j = 1; j <= r - mid; j++) { $O]E$S${  
temp[r - j + 1] = data[j + mid]; ae(]9VW  
} ;u-< {2P  
int a = temp[l]; kAQ\t?`x  
int b = temp[r]; Vp-OGX[  
for (i = l, j = r, k = l; k <= r; k++) { cwW~ *90#  
if (a < b) { -m x3^  
data[k] = temp[i++]; n5,Pq+[  
a = temp; &<#BsFz  
} else { Kn9=a-b?,  
data[k] = temp[j--]; :#&U95EC0  
b = temp[j]; T=p}By3a  
} ~E6+2t*  
} @Qsg.9N3K  
} &40JN}  
G'}_ZUy#  
/** &LxzAL,3!  
* @param data / jL{JF>I  
* @param l RVKaqJ0e<  
* @param i ^%OH}Z`ly  
*/ K/.hJ  
private void insertSort(int[] data, int start, int len) { 7rDRu]  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); r`E1<aCr|  
} 4oa P"T@6  
} T[!q&kFB  
} HOQ _T4  
} :~A1Ud4c  
Ynh4oWUp  
堆排序: kA :;c}p  
L!8?2 \5  
package org.rut.util.algorithm.support; [,A'  
m"m;(T{ v  
import org.rut.util.algorithm.SortUtil; h}:5hi Jw  
<n~g+ps  
/** !VZCM{  
* @author treeroot ZwrYs s  
* @since 2006-2-2 u(G;57ms  
* @version 1.0 (lck6v?h  
*/ PQ#-.K  
public class HeapSort implements SortUtil.Sort{ ,c %gwzU  
Q@.9wEAJ  
/* (non-Javadoc) _.8]7f`*Gc  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^l2d?v8  
*/ _TcQ12H 5<  
public void sort(int[] data) { X'Il:SK  
MaxHeap h=new MaxHeap(); !J?=nSu  
h.init(data); OsSiBb,W79  
for(int i=0;i h.remove(); >`V|`Zi ?  
System.arraycopy(h.queue,1,data,0,data.length); A kQFb2|ir  
} ?}Ptb&Vk(  
o?hw2-mH  
private static class MaxHeap{ VKfHN_m*  
\C\y' H5  
void init(int[] data){ A)a+LW'=u  
this.queue=new int[data.length+1]; 4Jy,IKPp  
for(int i=0;i queue[++size]=data; j<-o{6r  
fixUp(size); "N:]d*A\  
} V'hz1roe  
} !<^j!'2  
@ DKl<F  
private int size=0; 5Fm? ,^  
<?@46d?C  
private int[] queue; w]YyU5rhS  
"&o@%){]  
public int get() { Tu#k+f*s  
return queue[1]; 9@>hm>g.  
} _q4dgi z  
CbaAnm1  
public void remove() { gY^TBR0?m  
SortUtil.swap(queue,1,size--); (S 3kP5:F  
fixDown(1); \yizIo.Y`  
} MZMv.OeYt,  
file://fixdown @y2Bq['  
private void fixDown(int k) { >oYwzK0&  
int j; $[;eb,  
while ((j = k << 1) <= size) { =` >Nfa+,  
if (j < size %26amp;%26amp; queue[j] j++; F88SV6  
if (queue[k]>queue[j]) file://不用交换 Pw{{+PBu R  
break; @%85k/(  
SortUtil.swap(queue,j,k); .{ Lm  
k = j; 3'uES4+r  
} Z"nuO\zH~  
} #Z 5Wk  
private void fixUp(int k) { 3>3ZfFC  
while (k > 1) { KEB>}_[  
int j = k >> 1; /FZ )ej\  
if (queue[j]>queue[k]) tD482Sb=  
break; U,}T ]J  
SortUtil.swap(queue,j,k); T $]L 5  
k = j; dOgM9P  
} ptL}F~  
} 'QS~<^-j"  
APm[)vw#f  
} =U|SK"oO  
cDol o1*  
} |L-juT X9  
(D3m5fO  
SortUtil:  .5r0%  
T1 .@Tbbt  
package org.rut.util.algorithm; -mdPqVIJn:  
`erQp0fBM  
import org.rut.util.algorithm.support.BubbleSort; .f<,H+m^  
import org.rut.util.algorithm.support.HeapSort; /P}tgcs  
import org.rut.util.algorithm.support.ImprovedMergeSort; :iiTz$yk  
import org.rut.util.algorithm.support.ImprovedQuickSort; bvvx(?!  
import org.rut.util.algorithm.support.InsertSort; p tfADG  
import org.rut.util.algorithm.support.MergeSort; S(s~4(o>8  
import org.rut.util.algorithm.support.QuickSort; O@&I.d$  
import org.rut.util.algorithm.support.SelectionSort; tELnq#<6  
import org.rut.util.algorithm.support.ShellSort; \:28z  
dL"i\5#%A  
/** "2j~3aWj  
* @author treeroot !t{!.  
* @since 2006-2-2 ozwqK oE  
* @version 1.0 ZI]K+jza  
*/ nrhpI d  
public class SortUtil { 4tKf  
public final static int INSERT = 1; AMfu|%ZL  
public final static int BUBBLE = 2; hzVO.Q*  
public final static int SELECTION = 3; } /FM#Xh  
public final static int SHELL = 4; k(^b  
public final static int QUICK = 5; f}d@G/L  
public final static int IMPROVED_QUICK = 6; +6E<+-N  
public final static int MERGE = 7; o?8j *]  
public final static int IMPROVED_MERGE = 8; .v8=zi:7Y  
public final static int HEAP = 9; (jMp`4P  
}Ec"&  
public static void sort(int[] data) { lK@r?w|<M  
sort(data, IMPROVED_QUICK); '*.};t~;"d  
} : P2;9+v  
private static String[] name={ ~qxc!k!w4  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 2M`Ni&v  
}; ^ZBkt7  
m>:ig\  
private static Sort[] impl=new Sort[]{ nJw1Sl5  
new InsertSort(), Onyq'  
new BubbleSort(),  .l'QCW9  
new SelectionSort(), `/iN%ZKum  
new ShellSort(), 9LRY  
new QuickSort(),  =7@  
new ImprovedQuickSort(), k{8N@&D  
new MergeSort(), pp_ddk  
new ImprovedMergeSort(), l)bUHh5[  
new HeapSort() 0$ EJ4  
}; w| # 79,&  
}e w?{  
public static String toString(int algorithm){ _"TG:RP  
return name[algorithm-1]; QY! A[!6h  
} HX[#tT|m~  
jlZNANR3  
public static void sort(int[] data, int algorithm) { 7MfvU|D[d/  
impl[algorithm-1].sort(data); Jl}7]cVq#  
} @UBp;pb}=h  
]sE^=;Pv?  
public static interface Sort { \NRRN eu|  
public void sort(int[] data); % M:"Ai5:  
} v]sGdZ(6-  
nV1, ):kh  
public static void swap(int[] data, int i, int j) { ea/6$f9^  
int temp = data; N~YeAe~+  
data = data[j]; **[p{R]8o  
data[j] = temp; b*7i&q'H  
} J0o[WD$A x  
} U[u6UG  
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
如果您提交过一次失败了,可以用”恢复数据”来恢复帖子内容
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八