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
  • 8175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。 K]5@bm  
插入排序: rt-^?2c?  
yr=$a3web;  
package org.rut.util.algorithm.support; K)!yOa'fH  
A|3'9iL{9  
import org.rut.util.algorithm.SortUtil; !>gi9z,  
/** J${'?!N  
* @author treeroot };{V]f 0  
* @since 2006-2-2 WBcnE( zF  
* @version 1.0 h+ixl#:  
*/ w"?H4  
public class InsertSort implements SortUtil.Sort{ yb{ud  
1nHQ)od  
/* (non-Javadoc) UqJ}5{rt  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) wB%:RI,  
*/ ,T:Uk*Bj  
public void sort(int[] data) { Q7u/k$qN  
int temp; i|5.DhK}  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); {p -q&k&R|  
} |ipL.<v7  
} Pv@P(y?\  
} pGS!Nn;K2  
,+LX.f&/8!  
} V $'~2v{_  
 hsYS<]  
冒泡排序: U tb"6_   
L;jzDng<  
package org.rut.util.algorithm.support; :x85:pa  
`[.b>ztqgJ  
import org.rut.util.algorithm.SortUtil; %ae|4u#b  
l;+nL[%`  
/** M1UabqQ  
* @author treeroot b8Bf,&:ys  
* @since 2006-2-2 9@'^}c#  
* @version 1.0 D}.Pk>5  
*/ )w3?o#@  
public class BubbleSort implements SortUtil.Sort{ =8`!Ph@(  
\OR=+\].9  
/* (non-Javadoc) "}"hQ.kAz  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) o|r8x_!+  
*/ b A/,{R  
public void sort(int[] data) { /=o~7y  
int temp; &`]Lg?J  
for(int i=0;i for(int j=data.length-1;j>i;j--){ DjzHEqiH  
if(data[j] SortUtil.swap(data,j,j-1); a| w.G "W  
} W8bh49   
} (T&rvE  
} j` RuK  
} uP;qs8  
R ;XG2  
} rf}@16O$'  
WDr C  
选择排序: QkY]z~P4  
{lNvKm)w  
package org.rut.util.algorithm.support; r .&<~x  
q oA?  
import org.rut.util.algorithm.SortUtil; o p{DPUO0  
NoSq:e  
/** yf 7Sz$Eq  
* @author treeroot kMJf!%L(  
* @since 2006-2-2 ,Z_aZD4  
* @version 1.0 F0Nl,9h('  
*/ 3vcKK;qCB  
public class SelectionSort implements SortUtil.Sort { ]x;*Z&  
gfr y5e  
/*  gAFu  
* (non-Javadoc) [.ya&E)x  
* \my5E\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) moop.}O<  
*/ H{tG:KH  
public void sort(int[] data) { Bsr; MVD  
int temp; Npr<{}ZE  
for (int i = 0; i < data.length; i++) { [m*E[0Hu  
int lowIndex = i; PM(M c]6  
for (int j = data.length - 1; j > i; j--) { /Soc,PjZ  
if (data[j] < data[lowIndex]) { Bz7rf^H`Z  
lowIndex = j; [unK5l4_!  
} QGC%, F"+  
} Un~ }M/  
SortUtil.swap(data,i,lowIndex); {Yt@H  
} \w6A-daD0  
} Z30r|Ufh  
/V>q(Q  
} Xyz w.%4c  
e-@.+ f2CC  
Shell排序: sWG_MEbu  
W`vgH/lSnZ  
package org.rut.util.algorithm.support; f3[/zcm;  
-g5o+RT@  
import org.rut.util.algorithm.SortUtil; xE{PsN1 X;  
w6Owfq'v  
/** *_qLLJg  
* @author treeroot }{oZdO  
* @since 2006-2-2 xJNV^u  
* @version 1.0 @Yu=65h  
*/ i(hL6DLD  
public class ShellSort implements SortUtil.Sort{ p-qt?A  
D#8uj=/%  
/* (non-Javadoc) ^yl)c \`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $vC}Fq  
*/ ^8z~`he=_J  
public void sort(int[] data) { p?6`mH  
for(int i=data.length/2;i>2;i/=2){ 1xf Pe#  
for(int j=0;j insertSort(data,j,i); )XFaVkQ}  
} I1Jhvyd?$  
} 6Fe$'TP  
insertSort(data,0,1);  << XWL:  
} 9ZYT#h  
ntZl(]l  
/** Y8s.Q  
* @param data K{vn[}  
* @param j bE6:pGr  
* @param i W Z_yaG$U  
*/ &{gD(QG  
private void insertSort(int[] data, int start, int inc) { 9w"kxAN  
int temp;  mS]&  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); u]<_6;_  
} +[lv `tr  
} F<YXkG4 pO  
} LBw$K0  
t ;-U  
} 7_ G$&  
mne?r3d  
快速排序: O]1aez[  
-Uj3?W  
package org.rut.util.algorithm.support; )8_ x  
Q)s`~G({P  
import org.rut.util.algorithm.SortUtil; BYKONZu  
XwlF[3VbiX  
/** qX%oLa  
* @author treeroot nf2[hx@=U  
* @since 2006-2-2 $xK*TJ(k  
* @version 1.0 =-dg]Ol8  
*/ l |Y?]LNr  
public class QuickSort implements SortUtil.Sort{ Vx#n0z  
UVUoXv)N  
/* (non-Javadoc) d7U%Q8?wUR  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 6!|/(~  
*/ QI WfGVc-  
public void sort(int[] data) { g.]S5(  
quickSort(data,0,data.length-1); U=vh_NHj  
} d95 $w8>  
private void quickSort(int[] data,int i,int j){ NGs@z^&V  
int pivotIndex=(i+j)/2; K1oSoD8c  
file://swap Qw@_.I  
SortUtil.swap(data,pivotIndex,j); !\hUjM+(}  
bMvHAtp  
int k=partition(data,i-1,j,data[j]); 0)0,&@])7  
SortUtil.swap(data,k,j); I%b}qC"5M  
if((k-i)>1) quickSort(data,i,k-1); 6E))4 lW  
if((j-k)>1) quickSort(data,k+1,j); D\LXjEm e.  
P:QSr8K  
} ^!j,d_)b!  
/** ui!MQk+D9  
* @param data n]< >$  
* @param i Xf/qUao  
* @param j 1$toowb"Zy  
* @return :H8`z8=0f{  
*/ vd FP ^06  
private int partition(int[] data, int l, int r,int pivot) { Q^@z]Sc[  
do{ VQ(l=k:}2  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); >&?k^nI}J  
SortUtil.swap(data,l,r); [IRWm N-  
} 6^#@y|.  
while(l SortUtil.swap(data,l,r); o'*7I|7a  
return l; '>U&B}  
} c>)_I  
?Mj@;O9>'  
} .ZVADVg\  
Pq<]`9/w^w  
改进后的快速排序: )ePQN~#K}  
Wu|ANc  
package org.rut.util.algorithm.support; 6b7SA ,  
a bw7{%2  
import org.rut.util.algorithm.SortUtil; d#Xt2   
6 66f;h  
/** +hL%8CVU M  
* @author treeroot vNIQ1x5Za  
* @since 2006-2-2 YCI- p p  
* @version 1.0 # M18&ld,r  
*/ h3BDHz,  
public class ImprovedQuickSort implements SortUtil.Sort { 0NFYFd-50  
cP,bob]  
private static int MAX_STACK_SIZE=4096; EpdSsfDP  
private static int THRESHOLD=10; }\oy%]_mY  
/* (non-Javadoc) UtzM+7r@  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2(s-8E:  
*/ t` f.HJe  
public void sort(int[] data) { Re]7G.y  
int[] stack=new int[MAX_STACK_SIZE]; -8pQI  
dOx0'q"Z  
int top=-1; grbUR)f<?-  
int pivot; ?_BK(kL_  
int pivotIndex,l,r; ]`H8r y2  
[7sy}UH  
stack[++top]=0; V^D!\)#  
stack[++top]=data.length-1; P;DGs]PF  
90[?)s  
while(top>0){ u0?,CQPL  
int j=stack[top--]; t(Sjo8, b  
int i=stack[top--]; :J~sz)n4  
KL^hYjC  
pivotIndex=(i+j)/2; E5`KUMZkq  
pivot=data[pivotIndex]; _I A{I  
gzd)7np B2  
SortUtil.swap(data,pivotIndex,j); W"&Y7("y  
[ m#|[%  
file://partition Izr_]%  
l=i-1; '@3Kq\/  
r=j; "&{sE RYY  
do{ @q<F_'7is  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); xa]e9u%  
SortUtil.swap(data,l,r); ['#3GJz-  
} SO8b~N  
while(l SortUtil.swap(data,l,r); m{{ 8#@g  
SortUtil.swap(data,l,j); F?*ko,  
Xm I63W*  
if((l-i)>THRESHOLD){ yf@DaIG  
stack[++top]=i; 04}" n  
stack[++top]=l-1; )D>= \ Me  
} *wNO3tP't  
if((j-l)>THRESHOLD){ 5 4vDP9  
stack[++top]=l+1; x-Ug(/!^  
stack[++top]=j; Kjfpq!NYE  
} *fg|HH+i  
BE LxaV,  
} p8_ CY[U  
file://new InsertSort().sort(data); y~-dQ7r  
insertSort(data); 9n!IdqKN  
} C[IY9s:Pf  
/** SQ0t28N3h  
* @param data 2GW.'\D  
*/ TL*8h7.(  
private void insertSort(int[] data) { oJ`cefcWo  
int temp; ]^c]*O[8  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 'pQ\BH  
} B kh1VAT  
} Yfjp:hg/!  
} rQM$lJ[x  
o{I]c#W  
} HI%#S&d  
VyWPg7}e  
归并排序: dSq3V#Q  
lVR a{._m  
package org.rut.util.algorithm.support; Kh,zp{  
1?hx/02  
import org.rut.util.algorithm.SortUtil; -er8(snDQ  
Yj/[I\I"m  
/** ,p7W4;?4  
* @author treeroot 4y|%Oj  
* @since 2006-2-2 w$%1j+%&  
* @version 1.0 Ks_B%d  
*/ +204.Yj?D  
public class MergeSort implements SortUtil.Sort{ M,(UCyT  
V<W$ h`  
/* (non-Javadoc) _DAj$$ Ru4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -FrNk>  
*/ s?pd&_kOv3  
public void sort(int[] data) { f\]splL  
int[] temp=new int[data.length]; `%nj$-W:  
mergeSort(data,temp,0,data.length-1); j]5mzz~  
} R[T94U  
d&ap u{  
private void mergeSort(int[] data,int[] temp,int l,int r){ hUO&rov3@  
int mid=(l+r)/2; m\xlSNW'q  
if(l==r) return ; s6+`cC4  
mergeSort(data,temp,l,mid); ro`2IE>  
mergeSort(data,temp,mid+1,r); \2huDNW& !  
for(int i=l;i<=r;i++){ iwS55o  
temp=data; TeXt'G=M  
} /lqVMlz\77  
int i1=l; n,vs(ZL:  
int i2=mid+1; ?X5Y8n]y\h  
for(int cur=l;cur<=r;cur++){ 6<>T{2b:(p  
if(i1==mid+1) 1xsIM'&  
data[cur]=temp[i2++]; s%xhT  
else if(i2>r) ##_Jz5P  
data[cur]=temp[i1++]; 6L4<c+v_  
else if(temp[i1] data[cur]=temp[i1++]; B?pNF+?'z  
else T**v!Ls  
data[cur]=temp[i2++]; 4Ow0g-{  
} IqrT@jgN-  
} z [9f  
w0(1o_F7.  
} ;eQOBGX9  
(m%A>e B  
改进后的归并排序: Htn''adg5  
i?0+f }5<p  
package org.rut.util.algorithm.support; k/]4L!/ T  
] lONi  
import org.rut.util.algorithm.SortUtil; e|2@z-Sp-  
RP|/rd]-k  
/** \#O}K  
* @author treeroot Q-7C'|  
* @since 2006-2-2 B;=-h(E}vJ  
* @version 1.0 f9FEH7S68  
*/ Fh0cOp(  
public class ImprovedMergeSort implements SortUtil.Sort { waRK$/b (  
^Pp2T   
private static final int THRESHOLD = 10; S%{^@L+V  
|ryV7VJ8  
/* &upM,Jsr*  
* (non-Javadoc) CYFi_6MFl  
* /t"F Z#  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) O4lHR6M2  
*/ (]gd$BgD  
public void sort(int[] data) { :+*q,lX8  
int[] temp=new int[data.length]; TVs#,  
mergeSort(data,temp,0,data.length-1); }XcYIo#+t  
} T_3JAH e  
yDe6f(D  
private void mergeSort(int[] data, int[] temp, int l, int r) { r)xkpa5  
int i, j, k; +$y%H  
int mid = (l + r) / 2; MIF`|3$,  
if (l == r) "J (0J  
return; D6L5X/#  
if ((mid - l) >= THRESHOLD) .0]\a~x  
mergeSort(data, temp, l, mid); 6zR9(c:a~  
else 97 eEqI$#  
insertSort(data, l, mid - l + 1); x4=Sm0Ro|V  
if ((r - mid) > THRESHOLD) *3Qwmom  
mergeSort(data, temp, mid + 1, r); oQ:.pq{T  
else su\iUi  
insertSort(data, mid + 1, r - mid); ;%W]b  
YkuFt>U9,  
for (i = l; i <= mid; i++) { 7G]v(ay  
temp = data; vnr{Ekg  
} ewrs D'?  
for (j = 1; j <= r - mid; j++) { x,81#=m^h  
temp[r - j + 1] = data[j + mid]; ::`#qa4!  
} $LkTu  
int a = temp[l]; 734f &2  
int b = temp[r]; 0s'h2={iI  
for (i = l, j = r, k = l; k <= r; k++) { (2uF<$7(  
if (a < b) { "kS!rJ[  
data[k] = temp[i++]; s:ZYiZ-  
a = temp; k3yA*Ec  
} else { `WRM7  
data[k] = temp[j--]; $s.:H4:I  
b = temp[j]; j0`)mR}  
} K6d2}!5  
} tPqWe2  
} =`pH2SJT  
='G-wX&k  
/** 3LW_qX  
* @param data 0aM&+j\q}  
* @param l rHaj~s 4  
* @param i )sZJH9[K  
*/ ! %X#;{  
private void insertSort(int[] data, int start, int len) { =8V 9E  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); \@!"7._=  
} hH(w O\s  
} Nbvs_>N   
} |w].*c}Z  
} #T3dfVWv  
KBOp}MEz  
堆排序: !*G%vOa  
N(Sc!rX  
package org.rut.util.algorithm.support; +oevNM  
\` U=pZJ  
import org.rut.util.algorithm.SortUtil; N> jQe  
C116 c"  
/** j@u]( nf  
* @author treeroot vN9R. R  
* @since 2006-2-2 cMK}BHOC  
* @version 1.0 U-U"RC>  
*/ /P%OXn$i/  
public class HeapSort implements SortUtil.Sort{ 5_7y1  
Aw$+Ew[8 2  
/* (non-Javadoc) [jEZ5]%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) iu.v8I ;<  
*/ B? Z_~Bf&  
public void sort(int[] data) { 9T#${NK  
MaxHeap h=new MaxHeap(); Lm3~< vP1e  
h.init(data); vdIert?p  
for(int i=0;i h.remove(); ? FlQ\q  
System.arraycopy(h.queue,1,data,0,data.length); %urd;h D  
} V jLv{f<p  
[nASMKK0  
private static class MaxHeap{ !9t,#?!  
WCD)yTg:ES  
void init(int[] data){ z50P* eS  
this.queue=new int[data.length+1]; 2!Qg1hM  
for(int i=0;i queue[++size]=data; Xti.yQx\  
fixUp(size); iY*fp=c9  
} Y*/e;mG.  
} LU $=j  
b.j$Gna>Q  
private int size=0; dym K@  
}0V aZ<j  
private int[] queue; 4w5);x.  
#w@V!o  
public int get() { Qo~|[]GE  
return queue[1]; Ggk#>O G  
} `0, G' F  
t>! Ok  
public void remove() { mg]t)+PQ  
SortUtil.swap(queue,1,size--); i_(6} Y&  
fixDown(1); |=js!R|  
} Ozg,6&3ji  
file://fixdown N 9W,p 2  
private void fixDown(int k) { fSVb.MZa7  
int j; _9C,N2a{C  
while ((j = k << 1) <= size) { B~B,L*kC2  
if (j < size %26amp;%26amp; queue[j] j++; 0b G#'.-  
if (queue[k]>queue[j]) file://不用交换 8b!xMFF"  
break; }jg 1..)"<  
SortUtil.swap(queue,j,k); N*+L'bO  
k = j; OcLahz6  
} )G),iy  
} F0kdwN4;  
private void fixUp(int k) { k+BY3a  
while (k > 1) { ]P/i}R:  
int j = k >> 1; #>M^BOR8  
if (queue[j]>queue[k]) K7R!E,oPg  
break; I0*N "07n  
SortUtil.swap(queue,j,k); X-*LA*xbN  
k = j; fjCFJ_  
} Ya4yW9*  
} #mYe@[p@  
UD=[::##  
} qP0UcG  
D"gv:RojD  
} C8W_f( i~  
xXlx}C  
SortUtil: f0879(,i  
U(gYx@   
package org.rut.util.algorithm; (mplo|>  
~O~iP8T  
import org.rut.util.algorithm.support.BubbleSort; E W`3$J;  
import org.rut.util.algorithm.support.HeapSort; 5"y)<VLJX  
import org.rut.util.algorithm.support.ImprovedMergeSort; CG;+Z-"X  
import org.rut.util.algorithm.support.ImprovedQuickSort; K~4bT=   
import org.rut.util.algorithm.support.InsertSort; + }$(j#h  
import org.rut.util.algorithm.support.MergeSort; 0V?7'Em  
import org.rut.util.algorithm.support.QuickSort; U1`pY:P  
import org.rut.util.algorithm.support.SelectionSort; 9k \M<jA  
import org.rut.util.algorithm.support.ShellSort; *cZ7?  
M@JW/~p'  
/** nDcH;_<;9a  
* @author treeroot h$mGaw vZ~  
* @since 2006-2-2 PhAD: A  
* @version 1.0 \l%##7DRp]  
*/ a6@k*9D>  
public class SortUtil { jvxCCYXR  
public final static int INSERT = 1; &kcmkRRG  
public final static int BUBBLE = 2; R xS{  
public final static int SELECTION = 3; E 6+ ooB[  
public final static int SHELL = 4; P%ThW9^vnj  
public final static int QUICK = 5; >;lrH&  
public final static int IMPROVED_QUICK = 6; -24ccN;  
public final static int MERGE = 7; M3Qi]jO98  
public final static int IMPROVED_MERGE = 8; -/ G#ls|?  
public final static int HEAP = 9; `n@;%*6/  
hXvC>ie(i  
public static void sort(int[] data) { cc3/XBo  
sort(data, IMPROVED_QUICK); T9'HQu  
} &O#1*y Z  
private static String[] name={ )?I*zc  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" cltx(C>   
}; ;VEKrVD  
*CbV/j"P?  
private static Sort[] impl=new Sort[]{ _h`4`r  
new InsertSort(), _ 2)QL  
new BubbleSort(), a_]l?t  
new SelectionSort(), #2lvRJB  
new ShellSort(), +=d=  
new QuickSort(), 11 k}Ly  
new ImprovedQuickSort(), HGDiwA  
new MergeSort(), =p7id5"  
new ImprovedMergeSort(), XL9-N?(@  
new HeapSort() fQwLx  
}; t BG 9Mn  
;JMmr-@  
public static String toString(int algorithm){ \j-:5M#m  
return name[algorithm-1]; ?G<?: /CU  
} m. \JO  
=d iGuI B  
public static void sort(int[] data, int algorithm) { rg=Ym.  
impl[algorithm-1].sort(data); 4?+jvVq  
} aL&9.L|1 g  
NTO.;S|2%  
public static interface Sort { ]>ndFE6kl  
public void sort(int[] data); dc_2nF  
} g_! xD;0  
)]LP8 J&  
public static void swap(int[] data, int i, int j) { /{P-WRz>  
int temp = data; keG\-f  
data = data[j]; Dd,i^,4Gj  
data[j] = temp; -1~o~yGE  
} UI'fzlB  
} Ino]::ZJ/  
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:
10+5=?,请输入中文答案:十五