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
  • 5677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。 7hcYD!DS  
插入排序: ;?i W%:_,  
%3-y[f  
package org.rut.util.algorithm.support; ,AFu C <  
9G5rcYi  
import org.rut.util.algorithm.SortUtil; %JBz5G  
/** xwq (N_  
* @author treeroot nPl?K:(  
* @since 2006-2-2 Z]Cq3~l  
* @version 1.0 I-*S&SiXjI  
*/ #&aqKV Y  
public class InsertSort implements SortUtil.Sort{ 3z?> j]  
 skViMo  
/* (non-Javadoc) n5NsmVW\x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) hd<c&7|G'  
*/ }@+0/W?\.  
public void sort(int[] data) { YnAm{YyI  
int temp; 5coyr`7mP  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); VA_PvL.9  
} }!r|1$,kL  
} <{cQM$ #  
} \'D0'\:vz  
@o _}g !9=  
} mR:uj2*  
Ya"a`ozq  
冒泡排序: =s2*H8]  
osAd1<EIC  
package org.rut.util.algorithm.support; *)T^Ch D,  
~Ea} /Au  
import org.rut.util.algorithm.SortUtil; 4F'LBS]=0  
Jhhb7uU+  
/** 266h\2t6  
* @author treeroot E,U+o $  
* @since 2006-2-2 $|@@Qk/T  
* @version 1.0 g |yvF-+  
*/ xF'EiX~  
public class BubbleSort implements SortUtil.Sort{ E A1?)|}n  
WiR(;m<g  
/* (non-Javadoc) d#4**BM  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0@iY:aF  
*/ IY\5@PVZ  
public void sort(int[] data) { b9HtR-iR;  
int temp; 6j]0R*B7`Q  
for(int i=0;i for(int j=data.length-1;j>i;j--){ x*U)Y  
if(data[j] SortUtil.swap(data,j,j-1); />pI8 g<  
} _op}1   
} <)c)%'v  
} 9IfmW^0  
} zE9W8:7  
| rtD.,m   
} !ons]^km  
MaQqs=  
选择排序: ,f'CD{E  
9F;>W ET  
package org.rut.util.algorithm.support; 6}Ci>_i4#  
37.S\ gO]  
import org.rut.util.algorithm.SortUtil; K;H&n1  
YfKdR"i+.  
/** 8^+%I/S$  
* @author treeroot WO>nIo5Y  
* @since 2006-2-2 A[{yCn`tM  
* @version 1.0  {Gk1vcq  
*/ ZG8DIV\D7  
public class SelectionSort implements SortUtil.Sort { D.u{~  
/{n-Y/j p  
/* KBc1{adDx@  
* (non-Javadoc) )g%d:xI  
* `e&Suyf4B  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) FGmb<z 2p  
*/ Vv=. -&'  
public void sort(int[] data) { |3"KK  
int temp; PB*&aYLU  
for (int i = 0; i < data.length; i++) { ~P **O~  
int lowIndex = i; :{l_FY436  
for (int j = data.length - 1; j > i; j--) { #r\4sVg  
if (data[j] < data[lowIndex]) { .|fH y  
lowIndex = j; Y)2,PES=  
} p]+Pkxz]'  
} >@_^fw)  
SortUtil.swap(data,i,lowIndex); pO3SUOP  
} 6 V=9M:  
} rw JIx|(  
Ioa$51&  
} jLm ;ty2;  
qqY"*uJ'  
Shell排序: oAeUvmh  
nMUw_7Y6  
package org.rut.util.algorithm.support; Fk7')?  
3bH'H*2  
import org.rut.util.algorithm.SortUtil; aeM+ d`f  
y??XIsF  
/** x g  
* @author treeroot vXZOy%$o  
* @since 2006-2-2 '_FsvHQ  
* @version 1.0 f46t9dxp$  
*/ PKiy5D*8p  
public class ShellSort implements SortUtil.Sort{ =-n}[Y}A  
U!\.]jfS  
/* (non-Javadoc) [hv~o~q  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) eru.m+\  
*/ r[iflBP  
public void sort(int[] data) { ;[OH(!  
for(int i=data.length/2;i>2;i/=2){ i<Zc"v;  
for(int j=0;j insertSort(data,j,i); BW*rIn<?G  
} tg4pyW <  
} W[e$>yK  
insertSort(data,0,1); /7^4O(iG  
} v PG},m~-  
hhc,uJ">!  
/** +',S]Edx  
* @param data y766; X:J  
* @param j =GMkR+<)  
* @param i .}~_a76  
*/ /@TF5]Ri  
private void insertSort(int[] data, int start, int inc) { je=a/Y=%U{  
int temp; 'I6i ,+D/q  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); BpP y&  
} yl+gL?IES  
} h J)h\  
} y _k l:Ssa  
}Oq5tC@$G  
} }00BllJ  
cIOlhX@  
快速排序: Z,Dl` w  
M!D3}JRm  
package org.rut.util.algorithm.support; Y&Z.2>b  
GH$pKB  
import org.rut.util.algorithm.SortUtil; f(y:G^V  
S3 Xl  
/** 'e'cb>GnA  
* @author treeroot 5K8^WK  
* @since 2006-2-2 $5%SNzzl  
* @version 1.0 q#9RW(o  
*/ z5*'{t)  
public class QuickSort implements SortUtil.Sort{ u <v7;dF|s  
?J >  
/* (non-Javadoc) 7?w*]  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 6q.Uhe_B  
*/ d S V8q ,D  
public void sort(int[] data) { MeZf*' J  
quickSort(data,0,data.length-1); F0Yd@Lk$_  
} dJNe+ MB`  
private void quickSort(int[] data,int i,int j){ n<R?ffy  
int pivotIndex=(i+j)/2; "'?>fe\qG  
file://swap ^9:Z7 >Z  
SortUtil.swap(data,pivotIndex,j); 59;KQ  
wgGl[_)  
int k=partition(data,i-1,j,data[j]); ^WWQI+pk  
SortUtil.swap(data,k,j); \bvfEP  
if((k-i)>1) quickSort(data,i,k-1); &E5g3lf  
if((j-k)>1) quickSort(data,k+1,j); t&e{_|i#+  
}a(dyr`S  
} N6i Q8P -  
/** R%[ c;i  
* @param data dhK~O.~m  
* @param i P.9>z7l{  
* @param j lA8`l>I  
* @return di )L[<$DY  
*/ :P0mx   
private int partition(int[] data, int l, int r,int pivot) { iSs:oH3l  
do{ [FR`Z=%  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); oE]QF.n#  
SortUtil.swap(data,l,r); l}K37f  
} mrtb*7`$  
while(l SortUtil.swap(data,l,r); 4ID5q~  
return l; +A?U{q  
} <=C!VVk4f  
)MTOU47U  
} #Ki[$bS~6  
28d'7El$  
改进后的快速排序: rf{rpe$  
j*r{2f4Rt  
package org.rut.util.algorithm.support; m^;f(IK5  
c(s.5p ^  
import org.rut.util.algorithm.SortUtil; xMG~N`r  
T{[=oH+  
/** WCixKYq  
* @author treeroot X$W~mQma6  
* @since 2006-2-2 fVpMx4&F   
* @version 1.0 u;2[AQ.  
*/ GC}==^1  
public class ImprovedQuickSort implements SortUtil.Sort { L) T (<  
Qh\60f>0  
private static int MAX_STACK_SIZE=4096;  H6/$d  
private static int THRESHOLD=10; svH !1 b  
/* (non-Javadoc) q^<?]8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .U]-j\  
*/ 49HZ2`Y  
public void sort(int[] data) { ^Xh^xL2cn  
int[] stack=new int[MAX_STACK_SIZE]; -PR N:'T  
v mk2{f,g  
int top=-1; '?(% Zxw%&  
int pivot; E+;7>ja  
int pivotIndex,l,r; </*6wpN  
>tW#/\x{  
stack[++top]=0; }:)&u|d_  
stack[++top]=data.length-1; #?:lb1  
gc$l^`+M  
while(top>0){ O3kA;[f;  
int j=stack[top--]; k~w*W X'  
int i=stack[top--]; ]~3V}z,T*  
-6B4sZpzD  
pivotIndex=(i+j)/2; 9p(. A$  
pivot=data[pivotIndex]; %._.~V  
H"WprHe  
SortUtil.swap(data,pivotIndex,j); hkQ"OsU  
$yNS pNmT0  
file://partition tK\~A,=  
l=i-1; Ta\tYZj$  
r=j; '/s)%bc  
do{ A2Gevj?F$  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); s!$7(Q86R  
SortUtil.swap(data,l,r); XZd,&YiaG  
} f._ua>v,f  
while(l SortUtil.swap(data,l,r); ^k9I(f^c-_  
SortUtil.swap(data,l,j); {3aua:q  
F7#JLE=  
if((l-i)>THRESHOLD){ =B@2#W#  
stack[++top]=i; {R6ZKB  
stack[++top]=l-1; $6SW;d+>n  
} <7jW _R@  
if((j-l)>THRESHOLD){ 8bld3p"^  
stack[++top]=l+1; ~b8]H|<'Y  
stack[++top]=j; ?$4 PVI}  
} Ig>(m49d  
E r?&Y,o  
} r_A$DaC]  
file://new InsertSort().sort(data); vx5Zl&6r  
insertSort(data); ~Z' ?LV<t  
} c{w2Gt!  
/** 4'=y:v2  
* @param data Z4ImV~m  
*/ R4:b{)=O  
private void insertSort(int[] data) { f ) L  
int temp; f4|rVP|x  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); qUb&   
} t"oeQ*d%  
} I-l_TpM)  
} X=&KayD  
}k.Z~1y  
} L ~N460  
h <<v^+m  
归并排序: IW] rb/H  
aK^q_ghh[  
package org.rut.util.algorithm.support; T]~ xj4  
ey$&;1x#5  
import org.rut.util.algorithm.SortUtil; 6.yu-xm  
x7 ,5  
/** o?Oc7 $+u  
* @author treeroot 7 HYwLG:\~  
* @since 2006-2-2 @f3E`8  
* @version 1.0 + v:SM 9  
*/ AH~E)S  
public class MergeSort implements SortUtil.Sort{ R.<g3"Lm>  
 rjnrju+  
/* (non-Javadoc) e$Pj.>-<=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) SXP]%{@ R/  
*/ pOoEI+t  
public void sort(int[] data) { DZtsy!xA  
int[] temp=new int[data.length];  _6vW F  
mergeSort(data,temp,0,data.length-1); dG?*y  
} ]3Sp W{=^(  
q'Pf]  
private void mergeSort(int[] data,int[] temp,int l,int r){ =[7Av>  
int mid=(l+r)/2; 8zW2zkv2|#  
if(l==r) return ; =41?^1\  
mergeSort(data,temp,l,mid); <lJ345Q  
mergeSort(data,temp,mid+1,r); g *+>H1}  
for(int i=l;i<=r;i++){  N4TV  
temp=data; (X*^dO  
} :?1Dko^  
int i1=l; 8'y$M] e9n  
int i2=mid+1; 0?|<I{z2  
for(int cur=l;cur<=r;cur++){ NL+N%2XG7  
if(i1==mid+1) wi{3/  
data[cur]=temp[i2++]; ('+d.F[109  
else if(i2>r) F#5~M<`.o  
data[cur]=temp[i1++]; 5'u<iSmBo  
else if(temp[i1] data[cur]=temp[i1++]; R[]Mdt<  
else M x" \5i  
data[cur]=temp[i2++]; 2&J)dtqz  
} g2Z`zQA7  
} }3WxZv]I}  
'[%j@PlCX  
} cQ}{[YO  
m+z& Q  
改进后的归并排序: @d1Q"9}B  
+k R4E23:  
package org.rut.util.algorithm.support; ":N9(}9  
9 QJyZ  
import org.rut.util.algorithm.SortUtil; 4Ftu  
N!tX<u~2  
/** R[+<^s}p/  
* @author treeroot :NTO03F7v  
* @since 2006-2-2 `N8O"UcoBo  
* @version 1.0 &_8 947  
*/ T6$+hUM$1  
public class ImprovedMergeSort implements SortUtil.Sort { Pr C{'XDlU  
a(ZcmYzXU  
private static final int THRESHOLD = 10; {Qj~M<@3  
@oGcuE  
/* +:/%3}`  
* (non-Javadoc) :7;@ZEe  
* as =fCuJ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %^6F_F_jS  
*/ {?7Uj  
public void sort(int[] data) { w_VP J  
int[] temp=new int[data.length]; NDokSw-  
mergeSort(data,temp,0,data.length-1); 9%obq/Lb  
} YtLt*Ig%  
vW@=<aS Z  
private void mergeSort(int[] data, int[] temp, int l, int r) { Y8t8!{ytg  
int i, j, k; */S_Icf  
int mid = (l + r) / 2; XQw9~$  
if (l == r) E _|<jy$`  
return; 3Tm+g2w2V8  
if ((mid - l) >= THRESHOLD) ~pky@O#b  
mergeSort(data, temp, l, mid); u:  
else |k00Z+O(  
insertSort(data, l, mid - l + 1); z\4.Gm-  
if ((r - mid) > THRESHOLD) ;q>ah!"k  
mergeSort(data, temp, mid + 1, r); o^wqFX(Y  
else X2"/%!65{  
insertSort(data, mid + 1, r - mid); >/6 _ ^  
+LJ73 !  
for (i = l; i <= mid; i++) { u)Whr@m  
temp = data; `kSZX:=};  
} )=(kBWM  
for (j = 1; j <= r - mid; j++) { G^@5H/)  
temp[r - j + 1] = data[j + mid]; 9W);rL|5  
} 7a}k  
int a = temp[l]; bvOq5Q6  
int b = temp[r]; + >!;i6|  
for (i = l, j = r, k = l; k <= r; k++) { b\,+f n  
if (a < b) { tX~w{|k  
data[k] = temp[i++]; wb ;xRP"w  
a = temp; qmP].sA  
} else { ]eV8b*d6  
data[k] = temp[j--]; K:WDl;8 (d  
b = temp[j]; 62NsJ<#>  
} b#o|6HkW  
} ]/{)bpu  
} :rP=t ,  
Zj Z^_X3  
/** iU:cW=W|M\  
* @param data >8[Z.fX  
* @param l z'7]h TA  
* @param i y>ktcuML  
*/ )O6>*wq  
private void insertSort(int[] data, int start, int len) { 43 :X,\~)  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 1xx}~|F?|  
} 1B\WA8  
} 0tJ Z4(0  
} _tycgq#  
} BFt> 9x]T  
o#N+Y?O  
堆排序: c+GG\:gM  
6wg^FD_Q  
package org.rut.util.algorithm.support; EhBKj |y  
Ws12b $  
import org.rut.util.algorithm.SortUtil; c[s4EUG  
wKY_Bo/d  
/** $Y gue5{c  
* @author treeroot *OQ2ucC8j  
* @since 2006-2-2 - ! S_ryL  
* @version 1.0  f)<6  
*/ x|29L7i  
public class HeapSort implements SortUtil.Sort{ CU~PT.  
Kf-JcBsrT  
/* (non-Javadoc) 7x8  yxE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Fs^Mw g o  
*/ Y|/ 8up  
public void sort(int[] data) { VS|2|n1<6  
MaxHeap h=new MaxHeap(); DIUjn;>k8  
h.init(data); o,wUc"CE  
for(int i=0;i h.remove(); HOJV,9v N  
System.arraycopy(h.queue,1,data,0,data.length); :MDKC /mC  
} @KUWxFak  
/<BI46B\  
private static class MaxHeap{ *n"{J(Jt`  
;GD]dW#  
void init(int[] data){ 8JUwf  
this.queue=new int[data.length+1]; 4`=m u}Y2  
for(int i=0;i queue[++size]=data; |+"(L#wk  
fixUp(size); ]{>,rK[So  
} %xt^698&X  
} V^~:F  
Xlt|nX~#;  
private int size=0; >KKMcTOYY  
t ZB<on<.)  
private int[] queue; ( uidNq  
*gz{.)W  
public int get() { BD7N i^qI$  
return queue[1]; S`]k>' l  
} a-J.B.A$Z/  
Yz93'HDB  
public void remove() { J|rq*XD}q  
SortUtil.swap(queue,1,size--); d<x7{?~.DK  
fixDown(1); \lNN Msd&  
} |e0`nn=  
file://fixdown /_ajaz%  
private void fixDown(int k) { A+?`?pOm&  
int j; Uoix  
while ((j = k << 1) <= size) { BfiD9ka-z  
if (j < size %26amp;%26amp; queue[j] j++; ~7Ux@Sx;  
if (queue[k]>queue[j]) file://不用交换 yEQs:v6L~  
break; /2VJX@h  
SortUtil.swap(queue,j,k); FXU8[j0P_G  
k = j; ;]:@n;c\  
} caX< n>  
} h!9ei6  
private void fixUp(int k) { ygl0k \  
while (k > 1) { dUdT7ixo  
int j = k >> 1; _PR4`C*  
if (queue[j]>queue[k]) )Xyn q(  
break; Yz)qcU  
SortUtil.swap(queue,j,k); IO:G1;[/2L  
k = j; -`6+UkOV[x  
} (&x['IR  
} sW8dPw O  
vY`s'%WV  
} Ny)X+2Ae  
C+&l< fM&  
} Eu04e N  
seeB S/%  
SortUtil: El"Q'(:/U  
{H'Y `+  
package org.rut.util.algorithm; o*hF<D$Y  
FHI ;)wn=  
import org.rut.util.algorithm.support.BubbleSort; ENY+^7  
import org.rut.util.algorithm.support.HeapSort; BTrn0  
import org.rut.util.algorithm.support.ImprovedMergeSort; ;i+#fQO7Q  
import org.rut.util.algorithm.support.ImprovedQuickSort; 8DaL,bi*.  
import org.rut.util.algorithm.support.InsertSort; ^sWT:BDh  
import org.rut.util.algorithm.support.MergeSort; o2\8OxcA  
import org.rut.util.algorithm.support.QuickSort; R@rBEW&  
import org.rut.util.algorithm.support.SelectionSort; d m%8K6|  
import org.rut.util.algorithm.support.ShellSort; ;i:d+!3XwC  
R ViuJ;  
/** }*"p?L^p{  
* @author treeroot Kx JqbLUC  
* @since 2006-2-2 uY'HT|@:{  
* @version 1.0 ^K@C"j?M/  
*/ ` sU/&  P  
public class SortUtil { H} g{Cr"Ex  
public final static int INSERT = 1; @Do= k  
public final static int BUBBLE = 2; ;sFF+^~L  
public final static int SELECTION = 3; [j'X;tVX{  
public final static int SHELL = 4; 3sZ\0P}   
public final static int QUICK = 5; ,s;Uf F  
public final static int IMPROVED_QUICK = 6; .#pU=v#/[  
public final static int MERGE = 7; UW EV^ &"x  
public final static int IMPROVED_MERGE = 8; t\ewHZG"  
public final static int HEAP = 9; VY\&8n}e(  
SasJic2M  
public static void sort(int[] data) { )53y AyP  
sort(data, IMPROVED_QUICK); du^J2m{f  
} *CHX  
private static String[] name={ _:27]K:  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" x-3\Ls[I  
}; !%0 * z  
6)Lk-D  
private static Sort[] impl=new Sort[]{ :9 ^* ^T  
new InsertSort(), kMd.h[X~  
new BubbleSort(), 6!FQzFCZq  
new SelectionSort(), VP]%Hni]  
new ShellSort(), I~XSn>-H  
new QuickSort(), S{m% H{A!  
new ImprovedQuickSort(), *;*r 8[U}q  
new MergeSort(), PwLZkr@4^  
new ImprovedMergeSort(), -3Vx76Y  
new HeapSort() d6 5L!4  
}; 83q6Sv  
^y%T~dLkp'  
public static String toString(int algorithm){ V "h +L7T  
return name[algorithm-1]; ZJs$STJ*  
} o " #\ >  
IO-Ow!  
public static void sort(int[] data, int algorithm) { [ibu/ W$  
impl[algorithm-1].sort(data); ~$?ZK]YOrx  
} M/gGoE{  
d>C$+v>  
public static interface Sort { 'b{]:Y  
public void sort(int[] data); `W*U4?M  
} _5N]B|cO  
N ?"]  
public static void swap(int[] data, int i, int j) { @sC`!Rmy'-  
int temp = data;  kPLxEwl  
data = data[j]; W6/yn  
data[j] = temp; D >tR-  
} ^DwYOo2B  
} p.?rey<%  
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