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
  • 4820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 FH0  
插入排序: V1JIht>Opo  
PxE3K-S)G  
package org.rut.util.algorithm.support; Lh<).<S  
[1KuzCcK}  
import org.rut.util.algorithm.SortUtil; bu"!jHPB  
/** PYzvCf`?  
* @author treeroot &VcV$8k  
* @since 2006-2-2 ]+$?u&0?w  
* @version 1.0 W}1 ;Z(.*  
*/ Tb-F]lg$  
public class InsertSort implements SortUtil.Sort{ ;UP$yM;  
UY 2OZ& &  
/* (non-Javadoc) 2Hv+W-6v  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Tac$LS\Q  
*/ 3yXY.>'  
public void sort(int[] data) { EZ`{Wnbq  
int temp;  RX5dO%  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); CWS4lx  
} b_):MQ1{  
} ?0,Ngrbe  
} #5j\C+P}|  
a@*\o+Su  
} K_-MYs.  
j8`BdKg  
冒泡排序: YrKWA  
;({W#Wa  
package org.rut.util.algorithm.support; MqUH',\3  
1!gbTeVlY  
import org.rut.util.algorithm.SortUtil; '`<w#z}AF  
! v0LBe4  
/** /FJu)H..U  
* @author treeroot })?GzblI&  
* @since 2006-2-2 = 9]~ yt  
* @version 1.0 B93+BwN>95  
*/ vZoaT|3 G]  
public class BubbleSort implements SortUtil.Sort{ eGHaY4|  
}>X~  
/* (non-Javadoc) O1mKe%'|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) VAu&@a`  
*/ xZv#Es%#  
public void sort(int[] data) { pV"R|{#V  
int temp; N8FF3}> g  
for(int i=0;i for(int j=data.length-1;j>i;j--){ @|%2f@h  
if(data[j] SortUtil.swap(data,j,j-1); #lW`{i  
} I 2|Bg,e  
} &JI8]JmU)  
} r$~HfskeI  
} 6i~WcAs  
[zM-^  
} Ez=Olbk  
k)Qtfj}uij  
选择排序: 9*?oYm;dX  
d<N:[Y\4l  
package org.rut.util.algorithm.support; N*&1GT#9  
e@OX_t_  
import org.rut.util.algorithm.SortUtil; }U9G    
u-5{U-^_  
/** (=@h23 vH  
* @author treeroot /~f'}]W  
* @since 2006-2-2 xlg9TvvI  
* @version 1.0 q%?in+l  
*/ H+Sz=tg5  
public class SelectionSort implements SortUtil.Sort { 1 Ya`| ?FS  
A$:U'ZG_  
/* j ?(&#  
* (non-Javadoc) ^M>P:~  
* KMjhZap%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) v oj^pzZ  
*/ s}% M4  
public void sort(int[] data) { l2P=R)@{  
int temp; W1=H8 O  
for (int i = 0; i < data.length; i++) { 'y3!fN =h  
int lowIndex = i; ITT@,  
for (int j = data.length - 1; j > i; j--) { OH(waKq2I  
if (data[j] < data[lowIndex]) { ;VO:ph4Aj  
lowIndex = j; <<R*2b  
} kq,ucU%>p  
} e&aWq@D  
SortUtil.swap(data,i,lowIndex); r? E)obE  
} Da&]y  
} 8q}q{8  
V /V9B2.$  
} UQ@L V~6{R  
?oHpFlj  
Shell排序: u($ !z^h  
R',rsGd`6j  
package org.rut.util.algorithm.support; ^qD$z=z-  
|2n4QBH!  
import org.rut.util.algorithm.SortUtil; Y\?"WGL)p  
FE|JHh$  
/** @wNG{Stj  
* @author treeroot ByNn  
* @since 2006-2-2 9e,0\J  
* @version 1.0 JB[~;nLlC  
*/ )C]g ld;8  
public class ShellSort implements SortUtil.Sort{ W+ko q*P  
Y^EcQzLw  
/* (non-Javadoc) i5Yb`Z[Y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) l#Y,R 0  
*/ X LOh7(  
public void sort(int[] data) { D2B%0sfl~  
for(int i=data.length/2;i>2;i/=2){ k5.Lna  
for(int j=0;j insertSort(data,j,i); X))/ m[_[  
} <s<n  
} KEjWRwN  
insertSort(data,0,1); O5nD+qTQ#  
} .MoU1n{Yc  
RO/FF<f  
/** GH:jH]u!V  
* @param data {go;C}  
* @param j GM f `A,>  
* @param i T&u5ki4NE  
*/ Lhb35;\  
private void insertSort(int[] data, int start, int inc) { JNXq.;:`Q  
int temp; CSq4x5!_7>  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); \B,@`dw  
} iE^84l68  
} G.a bql  
} c?[I?ytl  
MH9q ;?.J  
} Ata:^qI  
UJ7*j%XQz_  
快速排序: %oa-WmWm  
3>`mI8 $t  
package org.rut.util.algorithm.support; }"%?et(  
ARwD~ Tr  
import org.rut.util.algorithm.SortUtil; 8ek@: Mw  
W^LY'ypT  
/** ;m{1 _1  
* @author treeroot BdblLUGK#  
* @since 2006-2-2 ;d"F%M y  
* @version 1.0 Y}|X|!0x  
*/ " h~Z u  
public class QuickSort implements SortUtil.Sort{ >T3-  
V>-e y9Q\  
/* (non-Javadoc) n QZwC  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) hwBfdZ  
*/ 9YQb &  
public void sort(int[] data) { e+ BQww  
quickSort(data,0,data.length-1); }DfshZ0QM  
} e95Lo+:f  
private void quickSort(int[] data,int i,int j){ <?}-$  
int pivotIndex=(i+j)/2; V0.vQ/  
file://swap /saIs%(fU  
SortUtil.swap(data,pivotIndex,j); ?5|>@>  
s6v ;  
int k=partition(data,i-1,j,data[j]); sF?TmBQ*  
SortUtil.swap(data,k,j); Jg\zdi:t  
if((k-i)>1) quickSort(data,i,k-1); 1&evG-#<:  
if((j-k)>1) quickSort(data,k+1,j); Gm.T;fc:  
>xYpNtEs  
} 9gEwh<  
/** C>j@,G4  
* @param data ]kRfB:4ED  
* @param i _] sn0rX  
* @param j 1AfnzGvA  
* @return }mq6]ZrK  
*/ a85$K$b>  
private int partition(int[] data, int l, int r,int pivot) { xU>WEm2  
do{ RD'Q :W  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); #crQ1p) \  
SortUtil.swap(data,l,r); 5Y'qaIFR  
} D] jz A x  
while(l SortUtil.swap(data,l,r); lVR~Bh  
return l; T?soJ]A  
} ?2;&O`x*  
ag#S6E^%S  
} z.9U}F  
mD0f<gJ1  
改进后的快速排序: m=A(NKZ   
>G*eNn  
package org.rut.util.algorithm.support; foF({4q7b^  
](9Xvy  
import org.rut.util.algorithm.SortUtil; q?oP?cCw  
w QH<gJE/:  
/** rc>4vB_ha  
* @author treeroot K>r,(zgVc  
* @since 2006-2-2 &(G\[RWp\  
* @version 1.0 ]J}  
*/ 3kIN~/<R+7  
public class ImprovedQuickSort implements SortUtil.Sort { +N9X/QFKV  
?{|q5n  
private static int MAX_STACK_SIZE=4096; \y)rt )  
private static int THRESHOLD=10; w\}ieI8J  
/* (non-Javadoc) % X+:o]T  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) THbh%)Zv+  
*/ '()xHEGl3  
public void sort(int[] data) { }=UHbU.n~!  
int[] stack=new int[MAX_STACK_SIZE]; ?'Xj g#}<  
F2dHH^  
int top=-1; o"Euwh!!  
int pivot; rEnQYz  
int pivotIndex,l,r; m!4ndO;0vh  
fc%xS7&  
stack[++top]=0; uK#4(eY=W  
stack[++top]=data.length-1; '(VJ&UlS2  
Y. 5_6'Eo?  
while(top>0){ gsv uE  
int j=stack[top--]; $L>@Ed<  
int i=stack[top--]; pV +|o.<C  
c74.< @w  
pivotIndex=(i+j)/2; 6C^ D#.S  
pivot=data[pivotIndex]; m )zUU  
-MO#]K3<  
SortUtil.swap(data,pivotIndex,j); +EAsW(F1  
@ ZwvBH  
file://partition 2d(e:r h]  
l=i-1; wd^':  
r=j; eV"h0_ox  
do{ ia~HQ$'+n  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); KB,j7 ~V  
SortUtil.swap(data,l,r); ;| 5F[  
} GT!M[*[  
while(l SortUtil.swap(data,l,r); wj<6kG  
SortUtil.swap(data,l,j); /y#f3r+*2  
=Z3F1Cq?  
if((l-i)>THRESHOLD){ mpEK (p  
stack[++top]=i; Sh~dwxp*"  
stack[++top]=l-1; }6}l7x  
} r CHl?J  
if((j-l)>THRESHOLD){ )!Z*.?  
stack[++top]=l+1; -M~:lK]n   
stack[++top]=j; OU(8V^.  
} s1$nvTzBr  
u+e{Mim  
} Z{Qu<vy_  
file://new InsertSort().sort(data); Y3cMC)  
insertSort(data); hh)`645=x  
} D|L9Vs`  
/** ' !cCMTj  
* @param data eKLZt%=  
*/ `$<.pOm  
private void insertSort(int[] data) { Nk 8B_{  
int temp;  O67W&nz  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); `?qF$g9u~  
} n;Q7X>-f8`  
} g i-$Z FzB  
} 4*#18<u5  
H8zK$!  
} \*y-g@-{W$  
v0+BkfU+p  
归并排序: 4qh?,^Dq  
\0I_<  
package org.rut.util.algorithm.support; #n #}s  
VUGmi]qd  
import org.rut.util.algorithm.SortUtil; I-)+bV G  
4Zddw0|2  
/** m@F`!qY~Y\  
* @author treeroot YnS#H"  
* @since 2006-2-2 S9D<8j^  
* @version 1.0 #PW9:_BE  
*/ oUr66a/[U  
public class MergeSort implements SortUtil.Sort{ f4b/NG|  
$q{!5-e  
/* (non-Javadoc) _QE qk@ql  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) x7w4[QYw  
*/ xY8$I6  
public void sort(int[] data) { Al^d$FaF  
int[] temp=new int[data.length]; J26 VnK  
mergeSort(data,temp,0,data.length-1); {n.PF8A5X  
} El".I?E*  
7\[@ m3s  
private void mergeSort(int[] data,int[] temp,int l,int r){ =.U[$~3q%  
int mid=(l+r)/2; q=m'^ ,gPS  
if(l==r) return ; <CiSK!  
mergeSort(data,temp,l,mid); ]t,BMu=%  
mergeSort(data,temp,mid+1,r); O`\;e>!t  
for(int i=l;i<=r;i++){ @6sqMw}  
temp=data; |\t-g" ~sN  
} 7~ p@0)''  
int i1=l; b<ZIWfs  
int i2=mid+1; XS{Qnx_#  
for(int cur=l;cur<=r;cur++){ '<xXK@=KEI  
if(i1==mid+1) "ycJ:Xv49  
data[cur]=temp[i2++]; P%VSAh\|n  
else if(i2>r) ({)+3]x  
data[cur]=temp[i1++]; mb3"U"ohs  
else if(temp[i1] data[cur]=temp[i1++]; 4Uo&d#o)C-  
else W:nef<WH  
data[cur]=temp[i2++]; On.{!:"I/  
} rJT a  
} q5+4S5R*^  
$dC?Tl|B0  
} M `M5'f  
(@VMH !3  
改进后的归并排序: LEf^cM=>  
D%SlAzZ3  
package org.rut.util.algorithm.support; X-Kh(Z  
2(+2+ }  
import org.rut.util.algorithm.SortUtil; q`a'gJx#y  
1#2 I  
/** MUc$ j&  
* @author treeroot @ioJ] $o7  
* @since 2006-2-2 [5b--O  
* @version 1.0 a0E)2vt4  
*/ j0aXyLNX  
public class ImprovedMergeSort implements SortUtil.Sort { KqJs?Won  
50wulGJud  
private static final int THRESHOLD = 10; 9>/4W.  
iC~^)-~H=w  
/* 9T9!kb  
* (non-Javadoc) _Y4` xv0/  
* Y =I'czg  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =v&hWjP  
*/ >Q;l(fdj  
public void sort(int[] data) { n'LrQU  
int[] temp=new int[data.length]; [yQt^!;  
mergeSort(data,temp,0,data.length-1); _8J.fT$${  
} $GcqBg-Hi  
aFm_;\  
private void mergeSort(int[] data, int[] temp, int l, int r) { &`r-.&Y  
int i, j, k; LA5(sp@O  
int mid = (l + r) / 2; 0i>5<ej,f  
if (l == r) k%#EEMh  
return; "Gzz4D  
if ((mid - l) >= THRESHOLD) lgy <?LI\  
mergeSort(data, temp, l, mid); @Uvz8*b6  
else tSUEZ62EY  
insertSort(data, l, mid - l + 1); 5Ln,{vsv  
if ((r - mid) > THRESHOLD) G~[x 3L'  
mergeSort(data, temp, mid + 1, r); 1n8/r}q'H  
else &wawr2)}  
insertSort(data, mid + 1, r - mid); Q"d^_z ]K  
Bm<`n;m  
for (i = l; i <= mid; i++) { ltSU fI  
temp = data; /C:gKy4  
} o5PO =AN  
for (j = 1; j <= r - mid; j++) {  9Q.Yl&A  
temp[r - j + 1] = data[j + mid]; vn8aFA  
} my1@41 H  
int a = temp[l]; l|[N42+  
int b = temp[r]; *:7rdzn  
for (i = l, j = r, k = l; k <= r; k++) { cqkV9f8Ro  
if (a < b) { V2EUW!gn 2  
data[k] = temp[i++]; !9e=_mY  
a = temp; >uRI'24  
} else { 'JE`(xD  
data[k] = temp[j--]; V=l0(03j~  
b = temp[j]; V1zmGy  
} Gb6'n$g  
} _N cR)2  
} u&vf+6=9Dd  
khxnlry  
/** +\]\[6  
* @param data jB2[(  
* @param l <'Eme  
* @param i g:@#@1rB6  
*/ _|2:_N=   
private void insertSort(int[] data, int start, int len) { <xm7qmqI  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); %wy.TN  
} h;"4+uw  
} ?l{nk5,?-Y  
} C{rcs'  
} 2F.;;Ab  
ADzhNf S  
堆排序: 'IQ0{&EI  
]%H`_8<gc  
package org.rut.util.algorithm.support; >tr}|>  
cuI TY^6  
import org.rut.util.algorithm.SortUtil; K69'6?#  
/,yd+wcW#  
/**  mq.`X:e  
* @author treeroot  kDioD  
* @since 2006-2-2 bAqA1y3=  
* @version 1.0 .L~AL|2_  
*/ (w3YvG.  
public class HeapSort implements SortUtil.Sort{ X+9>A.92  
ZLejcYS  
/* (non-Javadoc) Qw*|qGvy^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f$$/H>MJ  
*/ "KpGlY?^  
public void sort(int[] data) { W ac&b  
MaxHeap h=new MaxHeap(); XpHrt XD  
h.init(data); va@Lz&sAE%  
for(int i=0;i h.remove(); wP@(?z  
System.arraycopy(h.queue,1,data,0,data.length); kTgEd]^&D  
} gwMNYMI  
F$]Pk|,  
private static class MaxHeap{ ZY+qA  
;A*]l' [-  
void init(int[] data){ oMa6(3T?E  
this.queue=new int[data.length+1]; I\ob7X'Xu!  
for(int i=0;i queue[++size]=data; l ymCH  
fixUp(size); NXrlk  
} W${Ue#w77  
} ^09,"<@k  
&h/X ku&0  
private int size=0; :"c*s4  
TvbE2Q;/UL  
private int[] queue; DvvK^+-~  
ZFL~;_r  
public int get() { )y$(AJx$  
return queue[1]; 46h<,na?,  
}  qX{+oy5  
li.;IWb0+)  
public void remove() { " H\k`.j  
SortUtil.swap(queue,1,size--); U Cjld  
fixDown(1); g($2Dk_F2  
} ~]2K ^bh8&  
file://fixdown 5rik7a)Z]  
private void fixDown(int k) { ?e 4/p  
int j; }|=|s f  
while ((j = k << 1) <= size) { rx|pOz,:  
if (j < size %26amp;%26amp; queue[j] j++; 4V`G,W4^J  
if (queue[k]>queue[j]) file://不用交换 9yP;@y*d  
break; 'H;*W|:-]  
SortUtil.swap(queue,j,k); iH@UTE;  
k = j; L!xi  
} x.$FNt(9  
} <LiPEo.R  
private void fixUp(int k) { #ABZ&Z  
while (k > 1) { tR$NRMZ.  
int j = k >> 1; i/Zd8+.n$  
if (queue[j]>queue[k]) nu%*'.  
break; wibNQ`4k  
SortUtil.swap(queue,j,k); cvL;3jRo  
k = j; s~X%Y<9l  
} =I_'.b  
} w}L[u r;I_  
S f# R0SA  
} 9->if/r,o  
t?FBG4  
} R:qW;n%AF  
H Pz+Dm  
SortUtil: (E1~H0^  
|FRg\#kf%  
package org.rut.util.algorithm; [nq@mc~<  
v]UwJz3<  
import org.rut.util.algorithm.support.BubbleSort; /)O"l@ }U  
import org.rut.util.algorithm.support.HeapSort; ~k5W@`"W  
import org.rut.util.algorithm.support.ImprovedMergeSort; JxU5 fe  
import org.rut.util.algorithm.support.ImprovedQuickSort; Q7CsJzk~)  
import org.rut.util.algorithm.support.InsertSort; Q"#J6@  
import org.rut.util.algorithm.support.MergeSort; }jPSUdo  
import org.rut.util.algorithm.support.QuickSort; X:{!n({r=  
import org.rut.util.algorithm.support.SelectionSort; A04U /;  
import org.rut.util.algorithm.support.ShellSort; q) KKvO  
!&E-}}<  
/** jPkn[W# 6  
* @author treeroot 8z\xrY  
* @since 2006-2-2 )4;`^]F  
* @version 1.0 +=)+'q]S  
*/ B9S@(/"7  
public class SortUtil { lyhiFkO iH  
public final static int INSERT = 1; A=0'Ks  
public final static int BUBBLE = 2;  Vxt+]5X  
public final static int SELECTION = 3; (QB2T2x  
public final static int SHELL = 4; MolgwVd  
public final static int QUICK = 5; )+Pus~w  
public final static int IMPROVED_QUICK = 6; BMf@M  
public final static int MERGE = 7; [Ch.cE_  
public final static int IMPROVED_MERGE = 8; 7G],T++N  
public final static int HEAP = 9; X@FN|Rdh  
_q^E,P  
public static void sort(int[] data) { 5!9zI+S|=`  
sort(data, IMPROVED_QUICK); ],].zlN  
} /Z4et'Lo  
private static String[] name={ <gBA1oRz  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" L}NSR  
}; ySI !d|_  
g9F?z2^  
private static Sort[] impl=new Sort[]{ #`s"WnP9'!  
new InsertSort(), poFg 1  
new BubbleSort(), i@J ;G`  
new SelectionSort(),  9gZ$   
new ShellSort(), P!k{u^$L  
new QuickSort(), )!T/3|C  
new ImprovedQuickSort(), Xn ;AZu^'R  
new MergeSort(), A+{VGP^  
new ImprovedMergeSort(), (7*}-Uy[C  
new HeapSort() 6W Ur QFK  
}; *8XEYZa  
@KAI4LP  
public static String toString(int algorithm){ !|>"o7  
return name[algorithm-1]; 0m ? )ROaJ  
} ~Cjn7  
e>7i_4(C  
public static void sort(int[] data, int algorithm) { 4KrL{Z+}  
impl[algorithm-1].sort(data); yV(\R  
} ?bu>r=oIO]  
F6dP,(  
public static interface Sort { :U x_qB  
public void sort(int[] data); ct}9i"H#1  
} e(G |;a  
A5w6]:f2  
public static void swap(int[] data, int i, int j) { gZ1?G-Q  
int temp = data; bN@ l?w  
data = data[j]; Lj;2\]  
data[j] = temp; <0?W{3NqI  
} DlNX 3  
} |^H5^k "Bv  
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