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
  • 7414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。 <[<]+r&*  
插入排序: +*P;Vb6D  
J-+p]xG  
package org.rut.util.algorithm.support; /d]{ #,k  
`=rDB7!$yL  
import org.rut.util.algorithm.SortUtil; Q>[GD(8k  
/** %2`geN<  
* @author treeroot wNhtw'E8  
* @since 2006-2-2 zHW}A `Rz  
* @version 1.0 ~4[4"Pi>|  
*/ #J)83  
public class InsertSort implements SortUtil.Sort{ R|O."&CAB  
PR*qyELu  
/* (non-Javadoc) _4MT,kN  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :h60  
*/ Z*Jp?[##  
public void sort(int[] data) { ck\gazo~q  
int temp; Yeb-u+23  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 0@*EwI  
} ;c~%:|  
} Hy0l"CA*|  
} V( bU=;Qo  
>)`V $x  
} vqnFyd   
tA6x  
冒泡排序: @$%[D`Wa<  
Zi~-m]9U  
package org.rut.util.algorithm.support; i>n)T  
n8vteGQ  
import org.rut.util.algorithm.SortUtil; p:q?8+W-r  
$Hbd:1%i {  
/** VA0p1AD  
* @author treeroot [^GXHE=  
* @since 2006-2-2 XZ!^kftyW  
* @version 1.0 ,zU7UL^I  
*/ WnZn$N.  
public class BubbleSort implements SortUtil.Sort{ sFWH*k dP?  
,I|TjC5  
/* (non-Javadoc) YsXf+_._  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @2Ca]2,4  
*/ ]^ "BLbDZ@  
public void sort(int[] data) { NY!"?Zko  
int temp; 64h$sC0z/e  
for(int i=0;i for(int j=data.length-1;j>i;j--){ }iCcXZ&5^  
if(data[j] SortUtil.swap(data,j,j-1); A*_ |/o  
} ~G*eJc0S:  
} /QK H30E  
} &fu J%  
} Bfz]PN78.G  
h|S6LgB  
} _/ Uer }  
($A0u mW1%  
选择排序: %h-?ff[  
G0VbW-`O  
package org.rut.util.algorithm.support; _ZU.;0  
mbh;oX+  
import org.rut.util.algorithm.SortUtil; $2+(|VG4F  
]iL>Zxex  
/** *dE5yS`H  
* @author treeroot :UdH}u!Ek  
* @since 2006-2-2  y+.E}  
* @version 1.0 yJ!x`RD),w  
*/ tfb_K4h6,  
public class SelectionSort implements SortUtil.Sort { GVl TW?5  
ui#K`.dn  
/* &XE eJ  
* (non-Javadoc) 4|[)D/N  
* &!pG1Fp9  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZyQ+}rO  
*/ c!})%{U  
public void sort(int[] data) { (fJ.o-LQ  
int temp; ~56F<=#,  
for (int i = 0; i < data.length; i++) { jWL;ElM'  
int lowIndex = i; :Z'q1kW@"  
for (int j = data.length - 1; j > i; j--) { 4RYvI!  
if (data[j] < data[lowIndex]) { :i>/aRNh1  
lowIndex = j; t<QSp6n""  
} 6EeK5XLf,  
} tQ > IJ  
SortUtil.swap(data,i,lowIndex); +f- E8q  
} g =)djXW  
} ]fgYO+  
|?KdQeL  
} h-`*S&mZ  
WOaj_o  
Shell排序: hd E?%A  
gQ@fe3[  
package org.rut.util.algorithm.support; g9$P J:  
hy?e?^  
import org.rut.util.algorithm.SortUtil; kbF+aS  
E:C-k^/[Y  
/** lq%6~va  
* @author treeroot YPY'[j(p`n  
* @since 2006-2-2 _g#v*7o2@  
* @version 1.0 ~^u#Q\KE"  
*/ <h"*"q|9  
public class ShellSort implements SortUtil.Sort{ |Q _]+[  
HECZZnM  
/* (non-Javadoc) r{~@hd'Aj  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) y$n`+%_  
*/ RU' WHk  
public void sort(int[] data) { cA8"Ft{P)  
for(int i=data.length/2;i>2;i/=2){ H LnizE  
for(int j=0;j insertSort(data,j,i); R6KS&Ge_  
} E5y\t_H  
} ;:)?@IuSy  
insertSort(data,0,1); &InMI#0mV  
} h+rrmC  
e%O]U:Z  
/** j;+!BKWy4  
* @param data EN!Q]O|  
* @param j :',Q6j(s  
* @param i ~dO&e=6Hk  
*/ z2GT9  
private void insertSort(int[] data, int start, int inc) { MCcWRbE5#  
int temp; ,n &e,I  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); `?PpzDV7Y  
} %bs~%6)  
} 9J!@,Zsh  
} 5U3 b&0  
*7yu&a8  
} JZS#Q\JN  
N))G/m3  
快速排序: ;| :^zo  
z&@Vg`w"  
package org.rut.util.algorithm.support; w u  
u0vq`5L  
import org.rut.util.algorithm.SortUtil; WF.y"{6>  
{hLS,Me  
/** )G">7cg;t  
* @author treeroot \?9{H6<=  
* @since 2006-2-2 6UkX?I`>  
* @version 1.0 R3dCw:\O+Z  
*/ FojsI<  
public class QuickSort implements SortUtil.Sort{ 6_w;dnVA  
FLI0C  
/* (non-Javadoc) )Z2l*fV  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) dgIEc]#pH  
*/ ?+WSYg0  
public void sort(int[] data) { BP7&w d  
quickSort(data,0,data.length-1); ?_+h+{/@B  
} 3]iBX`Ni  
private void quickSort(int[] data,int i,int j){ *&\fBi]  
int pivotIndex=(i+j)/2;  #)r  
file://swap k7\h- yn{  
SortUtil.swap(data,pivotIndex,j); ^q uv`d  
* @QC:1k  
int k=partition(data,i-1,j,data[j]); /4R|QD  
SortUtil.swap(data,k,j); j(;o   
if((k-i)>1) quickSort(data,i,k-1); #z*-  
if((j-k)>1) quickSort(data,k+1,j); lR9~LNK?  
m'Thm{Y,?n  
} gUcG#  
/** r3hUa4^97  
* @param data -]?F  
* @param i v$H]=y  
* @param j 3%JPJuNVw  
* @return m R3km1T  
*/ 7|"gMw/  
private int partition(int[] data, int l, int r,int pivot) { Psf'#4g  
do{ *c[X{  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); XSu9C zx&I  
SortUtil.swap(data,l,r); Wn9b</ tf  
} -I'@4\<  
while(l SortUtil.swap(data,l,r); oA _,jsD4  
return l; }h6 N.vz  
} z8ox#+l  
GV5hmDzRs  
} KV!!D{VS`@  
Q+O3Wgjy  
改进后的快速排序: !H5r+%Oo|  
.mse.$TK.^  
package org.rut.util.algorithm.support; w<3g1n7R  
vPV=K+1  
import org.rut.util.algorithm.SortUtil; %Tn0r|K  
,pgpu !  
/** )T=cd   
* @author treeroot ;34 m!\N5  
* @since 2006-2-2 Ier0F7]I  
* @version 1.0 DKjkO5R\  
*/ ZS-O,[  
public class ImprovedQuickSort implements SortUtil.Sort { 5F8sigr/h  
q x1}e  
private static int MAX_STACK_SIZE=4096; ~t $zypw  
private static int THRESHOLD=10; "0lC:Wu]  
/* (non-Javadoc) 1w)#BYc=L  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4mG?$kCN  
*/ kc3dWWPe  
public void sort(int[] data) { H^N@fG<*dh  
int[] stack=new int[MAX_STACK_SIZE]; Z.Sq5\d  
kO]],Vy`  
int top=-1; H'L ~8>  
int pivot; )<D(Mb 2p|  
int pivotIndex,l,r; LV:`si K  
+=5Dt7/|  
stack[++top]=0; k0=$mmmPY  
stack[++top]=data.length-1; K#B)@W?9  
M-Az2x;6  
while(top>0){ A&$oiLc  
int j=stack[top--]; `g;`yJX<  
int i=stack[top--]; H)s$0Xd  
Tn~b#-0  
pivotIndex=(i+j)/2; {jOCz1J  
pivot=data[pivotIndex]; Hd1e9Q,:|  
;t.LLd  
SortUtil.swap(data,pivotIndex,j); _$+lyea   
l%aiG+z%6}  
file://partition )$*T>.JA  
l=i-1; 50:$km\  
r=j; -!dL <  
do{ ;xnJ+$//U  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); kp~@Ub @O3  
SortUtil.swap(data,l,r); 5z8!Nmb/  
} Z;^UY\&X  
while(l SortUtil.swap(data,l,r); A 'Q nL  
SortUtil.swap(data,l,j); "]%.%$  
9tW=9<E  
if((l-i)>THRESHOLD){ J~0_  
stack[++top]=i; >-s\$8En'  
stack[++top]=l-1; /$7_*4e  
} nyZUf{:  
if((j-l)>THRESHOLD){ @ (UacFO  
stack[++top]=l+1; 7*e7P[LQU  
stack[++top]=j; 7 I/  
} / M(A kNy  
!H`! KBW  
} L6^Qn%:OTd  
file://new InsertSort().sort(data); edt(Zzk@3-  
insertSort(data); [dje!5Dc(  
} A6APU><dm^  
/** tN' -4<+  
* @param data <z3:*=!  
*/ 3[RbVT  
private void insertSort(int[] data) { 1D42+cy  
int temp; }";\8  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); y/>]6Pj  
} SArSi6vF  
} [@U2a$k+d  
} vHY."$|H  
{iGk~qN  
} niZ/yW{w  
f^8,Z+n  
归并排序: QU/Q5k  
MtYi8"+<e.  
package org.rut.util.algorithm.support; |22~.9S  
T@PtO "r  
import org.rut.util.algorithm.SortUtil; WXqrx*?*+  
uTN mt]  
/** -5Qsc/ s&  
* @author treeroot (UDR=7w)  
* @since 2006-2-2 mK3U*)A   
* @version 1.0 *(PQaXx4  
*/ CU3[{a  
public class MergeSort implements SortUtil.Sort{ {wWh;  
H7 acT  
/* (non-Javadoc) T{1Z(M+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) i"}%ib*X  
*/ y{~l&zrl  
public void sort(int[] data) { ~/hyf]*j  
int[] temp=new int[data.length]; M@e&uz!Rx  
mergeSort(data,temp,0,data.length-1); V+/Vk1  
} ^<0u~u)%T  
%,u_ `P  
private void mergeSort(int[] data,int[] temp,int l,int r){ zG_e=   
int mid=(l+r)/2; |fXwH>'sw  
if(l==r) return ; WlHw\\ur  
mergeSort(data,temp,l,mid); (>THN*i  
mergeSort(data,temp,mid+1,r); WH F>J  
for(int i=l;i<=r;i++){ Fg8i} >w  
temp=data; Jsee8^_~  
} ^c1%$@H  
int i1=l; \Uun2.K  
int i2=mid+1; gkdd#Nrk  
for(int cur=l;cur<=r;cur++){ 4qtjP8Zv[  
if(i1==mid+1) rs$sAa*f  
data[cur]=temp[i2++]; K252l,;|  
else if(i2>r) $42C4I*E  
data[cur]=temp[i1++]; ;eznONNF  
else if(temp[i1] data[cur]=temp[i1++]; Dp 0   
else %;UEyj  
data[cur]=temp[i2++]; 2.=3:q!H<%  
} rA9BY :N@  
} eWvL(2`Tx  
bXoj/zek  
} 30 Vv Zb  
 k~#F@_  
改进后的归并排序: -(FVTWi0  
\BC|`)0h  
package org.rut.util.algorithm.support; bd[zdL#4K  
k,>sBk 8  
import org.rut.util.algorithm.SortUtil; @q9uU9c  
.YquOCc(  
/** \>NjeMuWU  
* @author treeroot j%R}  
* @since 2006-2-2 OM!CP'u#{  
* @version 1.0 L^:+8g  
*/ 8fzmCRFH  
public class ImprovedMergeSort implements SortUtil.Sort { /esSM~*H  
>#z*gCO5,  
private static final int THRESHOLD = 10; 0Y#S2ty  
#87:Or1  
/* 7bioLE  
* (non-Javadoc) Ug=8:a(U.  
* /[YH  W]  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M9{?gM9  
*/ b?-Ep?G'\  
public void sort(int[] data) { EB'(%dH  
int[] temp=new int[data.length]; tp2CMJc{L  
mergeSort(data,temp,0,data.length-1); ;\=W=wL(  
} 8M m,a  
Ilvz @=  
private void mergeSort(int[] data, int[] temp, int l, int r) { oXG,8NOdC  
int i, j, k; N%{&%C6{  
int mid = (l + r) / 2; ;+XiDEX0}  
if (l == r) JF]HkH_u  
return; L*tn>AO  
if ((mid - l) >= THRESHOLD) mBgMu@zt)  
mergeSort(data, temp, l, mid); X$w ,zb\  
else -:(,<Jt<  
insertSort(data, l, mid - l + 1); PdG:aGQ>  
if ((r - mid) > THRESHOLD) ` INcZr"  
mergeSort(data, temp, mid + 1, r); |V{'W-` |[  
else 2ul!f7#E  
insertSort(data, mid + 1, r - mid); \;x+KD  
:70cOt~Z  
for (i = l; i <= mid; i++) { -fu=RR  
temp = data; SesJg~8  
} n0#HPI"  
for (j = 1; j <= r - mid; j++) { ;wCp j9hir  
temp[r - j + 1] = data[j + mid]; ?#^(QR|/  
} :`6E{yfM  
int a = temp[l]; O.S(H1z<G  
int b = temp[r]; `i0RLGze  
for (i = l, j = r, k = l; k <= r; k++) { '7}s25[{\  
if (a < b) { z8+3/jLN0B  
data[k] = temp[i++];  Z+ [Nco  
a = temp; (NUwkAO M}  
} else { EeWCy5W  
data[k] = temp[j--]; u= ( kii=/  
b = temp[j]; RWf4Wh?d  
} ('!90  
} #LEK?]y  
} +hg|!SS@5  
zRsG$)B  
/** A<.`HCv2  
* @param data 0hK)/!Y  
* @param l s<x2*yVUA  
* @param i ?}y?e}y*xZ  
*/ uNV (r"  
private void insertSort(int[] data, int start, int len) { pulE6T7 x  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); CZg$I&x  
} 6JBE=9d-Q  
} I0oM\~#  
} Ro`Hm8o/  
} t5 n$sF  
,6?L.L  
堆排序: +avu&2B  
rwr>43S5<3  
package org.rut.util.algorithm.support; _O ~DJ"  
'VCF{0{H~  
import org.rut.util.algorithm.SortUtil; dC;@ Fn  
-xtj:UO  
/** w$UWfL(  
* @author treeroot ,dK<2XP  
* @since 2006-2-2 RajzH2j+>  
* @version 1.0 1Iu^+  
*/ F n4i[|W42  
public class HeapSort implements SortUtil.Sort{ G^J|_!.a  
gS ~QlW V  
/* (non-Javadoc) [#V?]P\uV  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [9NzvC 9I  
*/ C0;c'4(  
public void sort(int[] data) { SN O'*?  
MaxHeap h=new MaxHeap(); *KSQ^.sYh  
h.init(data); ^'r/;(ZF*/  
for(int i=0;i h.remove(); n\&[^Q#b|  
System.arraycopy(h.queue,1,data,0,data.length); CGvU{n,"  
} he;;p="!*  
1I^[_ /_\y  
private static class MaxHeap{ S !cc%  
U bT7  
void init(int[] data){ KOVGwEj  
this.queue=new int[data.length+1]; 2:^Dv1J)rD  
for(int i=0;i queue[++size]=data; n%? bMDS  
fixUp(size); HkFoyy  
} !Z2?dhS  
} :Zl@4}  
`qp[x%7^  
private int size=0; S1NM9xHJ  
!T02@e/  
private int[] queue; 4v cUHa|4  
9/TF #  
public int get() { ;muxIr`?  
return queue[1]; , }O>,AU  
} EQXvEJ^  
l[mXbQd  
public void remove() { V~` ?J6  
SortUtil.swap(queue,1,size--); XfmPq'#Z  
fixDown(1); }-9  
} smW 7zGE  
file://fixdown V9f$zjpw  
private void fixDown(int k) { _v:t$k#sN  
int j; |T0jq  
while ((j = k << 1) <= size) { ZAVjq;bq  
if (j < size %26amp;%26amp; queue[j] j++; i E>E*!aBg  
if (queue[k]>queue[j]) file://不用交换 EE5I~k 5  
break; {Sm^F  
SortUtil.swap(queue,j,k); ^6`"f  
k = j; f}b= FV{  
} 21x?TZa  
} -Zd0[& ']  
private void fixUp(int k) { E'zLgU)r`  
while (k > 1) { {(#Dou  
int j = k >> 1; H'Q4IRT  
if (queue[j]>queue[k]) 5%j !SVW  
break; `)$'1,]u  
SortUtil.swap(queue,j,k); h-<2N)>!  
k = j; :786Z,')  
} -t2bHhG  
} ?]SSmZpk  
&u0JzK  
} HTuv_kE  
F1%-IBe  
} Q[J%  
e>\[OwF-x  
SortUtil: uuW._$.A>  
," ~ew ,  
package org.rut.util.algorithm; c.y8x  
]wCg'EUB  
import org.rut.util.algorithm.support.BubbleSort; f]N2(eM  
import org.rut.util.algorithm.support.HeapSort; kKwb)i  
import org.rut.util.algorithm.support.ImprovedMergeSort; /iFtW#K+  
import org.rut.util.algorithm.support.ImprovedQuickSort; uc4#giCD  
import org.rut.util.algorithm.support.InsertSort; V uZd  
import org.rut.util.algorithm.support.MergeSort; (;-< @~2  
import org.rut.util.algorithm.support.QuickSort; 2.6%?E]  
import org.rut.util.algorithm.support.SelectionSort; dq[X:3i  
import org.rut.util.algorithm.support.ShellSort; }DiMt4!ZC!  
9B gR@b  
/** 5>M6lwS  
* @author treeroot v?Q&06PMRc  
* @since 2006-2-2 -:]_DbF  
* @version 1.0 ~LqjWU  
*/ v8Gm ;~  
public class SortUtil { BMMWP   
public final static int INSERT = 1; ?v?b%hK!;  
public final static int BUBBLE = 2; ~ _R 8; b  
public final static int SELECTION = 3; 0w[#`  
public final static int SHELL = 4; 60?/Z2w5  
public final static int QUICK = 5; 2;N)>[3*J  
public final static int IMPROVED_QUICK = 6; *CG-F=  
public final static int MERGE = 7; W,'30:#Fr7  
public final static int IMPROVED_MERGE = 8; J+ tpBPmb  
public final static int HEAP = 9; dV(61C0wn  
T@0\z1,~S  
public static void sort(int[] data) { cC@B\Q  
sort(data, IMPROVED_QUICK); k4Ed7T-  
} <RQ\nU  
private static String[] name={ `{BY {  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" = rDoXm  
}; co^kP##Y  
* 0M[lR0t  
private static Sort[] impl=new Sort[]{ jinDKJ,n;  
new InsertSort(), 2 )oT\m  
new BubbleSort(), NJ\ID=3l  
new SelectionSort(), n@IpO i$Q  
new ShellSort(), ^)|8N44O  
new QuickSort(), `rEu8u  
new ImprovedQuickSort(), c!n\?lB  
new MergeSort(), T 2Uu/^  
new ImprovedMergeSort(), 8bT]NvCA  
new HeapSort() Hxe!68{aR  
}; \D Oqx  
=y)e&bj  
public static String toString(int algorithm){ ? I7}4i7  
return name[algorithm-1]; .URCuB\{  
} -'ff0l  
G 92\` Q  
public static void sort(int[] data, int algorithm) { Pyfj[m4+}  
impl[algorithm-1].sort(data); Se*o{V3s$  
} N,N9K  
BWRM gN'.  
public static interface Sort { 4H@:|  
public void sort(int[] data); #w_cos[I  
} h$3o]~t  
1yHlBeEC  
public static void swap(int[] data, int i, int j) {  {*!L[)  
int temp = data; V}c3}'_U]  
data = data[j]; d~#>.$Uu  
data[j] = temp; $J]VY;C!  
} ,ru2C_LQ  
} k0[b4cr`  
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