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
  • 5197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。 / KKA/  
插入排序: W\z<p P  
p49T3V  
package org.rut.util.algorithm.support; ;{"uG>#R  
U5j0i]  
import org.rut.util.algorithm.SortUtil; !6*4^$i#o  
/** q/3co86c  
* @author treeroot ?WrL<?r)}U  
* @since 2006-2-2 O9:J ^g  
* @version 1.0 A~'p~ @L  
*/ ^NO;A=9b[  
public class InsertSort implements SortUtil.Sort{ z2SR/[I?  
_/F}y[B7d  
/* (non-Javadoc) liTAV9<  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9<*<-x{A17  
*/ 2*0n#" L  
public void sort(int[] data) { 'V*8'?  
int temp; mtNB09E(  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 62>/0_m5  
} `e+eL*rZ~  
} Cta!"=\  
} pEiq;2{~Yn  
+fq;o8q  
} `,6^eLU  
)h;zH,DA[3  
冒泡排序: &0J/V>k  
}-paGM@'Nd  
package org.rut.util.algorithm.support; fq0[7Yb  
13I~   
import org.rut.util.algorithm.SortUtil; lziC.Dpa  
Mm#=d?YUHJ  
/** .%mjE'  
* @author treeroot i-&"1D[&  
* @since 2006-2-2 /S%!{;:  
* @version 1.0 |r53>,oR<:  
*/ 6 ZVD<C:\  
public class BubbleSort implements SortUtil.Sort{ |( R[5q  
)auuk<  
/* (non-Javadoc) f8 L3+u  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) zuBfkW95+  
*/ ^r~R]stE^  
public void sort(int[] data) { i<{/r-w=E  
int temp;  SwmX_F#_  
for(int i=0;i for(int j=data.length-1;j>i;j--){ A>}]=Ii/  
if(data[j] SortUtil.swap(data,j,j-1); +,bgOq\aG  
} LP}YH W/  
} 3hNb ?  
} OY(znVHU  
} K.\-  
m{0u+obi&w  
} JT 5+d ,  
e irRAU  
选择排序: n/GJ&qLi:g  
)hK1W\5  
package org.rut.util.algorithm.support; s B!2't  
`jCq`-.  
import org.rut.util.algorithm.SortUtil; w3peG^4D_  
2N_9S?a3sK  
/** |} K7Q  
* @author treeroot `H\NJ,  
* @since 2006-2-2 DZ0\pp?S  
* @version 1.0 Jf8AKj3  
*/ Hxd ^oE  
public class SelectionSort implements SortUtil.Sort { 8_ _C T  
0qD.OF)8  
/* ^->vUf7PX  
* (non-Javadoc) zGE{Z A  
* ?C9>bKo*2H  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) iMOf];O)  
*/ TZk.h8  
public void sort(int[] data) { fT_swh IO  
int temp; Q mn'G4#@E  
for (int i = 0; i < data.length; i++) { E{6X-C[)v  
int lowIndex = i; q"pnFK9/L  
for (int j = data.length - 1; j > i; j--) { Nh\y@\F>  
if (data[j] < data[lowIndex]) { g].hL  
lowIndex = j; =;A~$[g  
} U HUO9h  
} rzgzX  
SortUtil.swap(data,i,lowIndex); wenJ(0L|  
} %uhhQ<zs%  
} RlTVx :  
We*c_;@<  
} Q Ph6 p3bg  
zs@[!?A,  
Shell排序: d@t3C8  
yj{:%Km:`  
package org.rut.util.algorithm.support; 9 8eS f  
MHKB:t]hA  
import org.rut.util.algorithm.SortUtil; {p@uj_pS  
j\8'P9~%  
/** ) BLoj:gYn  
* @author treeroot &;k`3`MC~w  
* @since 2006-2-2 .:#6dG\0z  
* @version 1.0 YJ^TO\4WM  
*/ - dt<w;>W  
public class ShellSort implements SortUtil.Sort{ oJTsrc_ -  
Q CB~x2C  
/* (non-Javadoc) o] 7U;W  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) R!LKGiN  
*/ *npe]cC  
public void sort(int[] data) { A?8 29<  
for(int i=data.length/2;i>2;i/=2){ -d6*M*{|  
for(int j=0;j insertSort(data,j,i); &g<`i{_  
} /q8?xP.   
} 0,`$KbV\  
insertSort(data,0,1); D?"TcA  
} }~28UXb23  
>xE{& ):  
/** /1q] D8  
* @param data mD p|EXN  
* @param j ~0>{PD$@  
* @param i <=,KP)   
*/ \i#0:3s.  
private void insertSort(int[] data, int start, int inc) { +C !A@  
int temp; r3b~|O^}  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); &c!=< <5M  
} yw;!KUKb|  
} ".SQ*'Oc  
} "ci<W_lx  
'Kj8X{BSFb  
} oos35xV .  
%lU$;cY  
快速排序: RFkJ^=}  
$wn "+wX  
package org.rut.util.algorithm.support; 4q<:% 0M|  
+>5 "fs$Y  
import org.rut.util.algorithm.SortUtil; \l leO|m  
D:HeP:.I  
/** ?iBHJ{  
* @author treeroot 2v<[XNX  
* @since 2006-2-2 P!";$]+  
* @version 1.0 _9Ig`?<>I  
*/ g3%t+>$*  
public class QuickSort implements SortUtil.Sort{ ^MWfFpJV!]  
VmB/X))   
/* (non-Javadoc) (IR'~ :W  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) W$Bx?}x($  
*/ P( W8XC  
public void sort(int[] data) { K9*#H(  
quickSort(data,0,data.length-1); .W&rcqy  
} y|X\f!  
private void quickSort(int[] data,int i,int j){ E 2DTE  
int pivotIndex=(i+j)/2; KV0e^c;  
file://swap wWflZ"%  
SortUtil.swap(data,pivotIndex,j); O"mU#3?  
1q! 6Sny@  
int k=partition(data,i-1,j,data[j]); y*6r&989  
SortUtil.swap(data,k,j); :LFw J  
if((k-i)>1) quickSort(data,i,k-1); |C S[>0mV!  
if((j-k)>1) quickSort(data,k+1,j); <u"#Jw/VP  
mlgdwM  
} 8C=Y(vPk2  
/** m-a _<xo  
* @param data ?^&!/,  
* @param i ls6ywLP{  
* @param j xTM&SVNbL_  
* @return [zR raG\  
*/ :OBggb#?!  
private int partition(int[] data, int l, int r,int pivot) { $hO8 S=  
do{ xZmKKKd0*  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); /BVNJNhz  
SortUtil.swap(data,l,r); [:!#F7O-  
} Bd"7F{H  
while(l SortUtil.swap(data,l,r); FO}4~_W{  
return l; zq]V6.]J  
} zT~ GBC-IX  
1)NX;CN  
} (vjQF$Hp  
7w{`f)~  
改进后的快速排序: wy_TFV  
U'.>wjO  
package org.rut.util.algorithm.support; M)EUR0>8  
9&'Mb[C`"  
import org.rut.util.algorithm.SortUtil; v(4C?vxhG  
( L RX  
/** K"b vUH  
* @author treeroot Hv0sl+  
* @since 2006-2-2 p9_45u`u2  
* @version 1.0 A Sy7")5  
*/ zAB-kE\ )  
public class ImprovedQuickSort implements SortUtil.Sort { VV] {R'  
:yk Z7X&  
private static int MAX_STACK_SIZE=4096; i`8!Vm  
private static int THRESHOLD=10; :eQx di'  
/* (non-Javadoc) /IV:JVT  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) x)vYc36H  
*/ ,bmTB ZV  
public void sort(int[] data) { a$t [}D2  
int[] stack=new int[MAX_STACK_SIZE]; +Mm0bqNN  
4b3p,$BWS  
int top=-1; <k^9l6@  
int pivot; WM=kr$/3  
int pivotIndex,l,r; x'JfRz  
-07(#>  
stack[++top]=0; B{1+0k  
stack[++top]=data.length-1; 6x/ X8zu  
6nGDoW#  
while(top>0){ rzaEVXbz1  
int j=stack[top--]; ! 2Y, a  
int i=stack[top--]; l/rhA6kEU  
NK#Dq&W+&  
pivotIndex=(i+j)/2; [EGE|   
pivot=data[pivotIndex]; S8,+6+_7  
x|<|eRYK  
SortUtil.swap(data,pivotIndex,j); &|E2L1  
{/0,lic  
file://partition gi;V~>kh  
l=i-1; 6u:5]e8  
r=j; `&9#!T.  
do{ <"[}8  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Dh +^;dQ6  
SortUtil.swap(data,l,r); nVyb B~.=  
} 9'5,V{pj  
while(l SortUtil.swap(data,l,r); `8'T*KU  
SortUtil.swap(data,l,j); [>_( q|A6+  
)If[pw@j  
if((l-i)>THRESHOLD){ &*)tqQeQf  
stack[++top]=i; BTd'bD~EA  
stack[++top]=l-1; 6/#= dv  
} [Q 2t,tQx  
if((j-l)>THRESHOLD){ q}\\p  
stack[++top]=l+1; GF/p|I D  
stack[++top]=j; UN>hJN;c  
} zRE7 w:  
Zp__  
} D *LZ_  
file://new InsertSort().sort(data); E!Fy2h>[Z  
insertSort(data); ] &G5/ ]f  
} < m9O0  
/** 1;:2=8  
* @param data :&or'Yi}  
*/ |g'sRTKJ  
private void insertSort(int[] data) { 8v]{ 5  
int temp; TyBNRnkt  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); s` 9zW,  
} *!s4#|h  
} M$~h(3  
} f1~3y}7^Jq  
iPFYG  
} BEI/OGp  
|[{;*wtv  
归并排序: GO?-z0V  
~l}TlRqL  
package org.rut.util.algorithm.support; %ri4nKGS  
BklB3*n  
import org.rut.util.algorithm.SortUtil; xd .I5  
O5=ggG  
/** QOF;j#H^  
* @author treeroot M3t_!HP}!  
* @since 2006-2-2 f`IgfJN  
* @version 1.0 o"]eAQ  
*/ $&e(V6A@  
public class MergeSort implements SortUtil.Sort{ ^g[])2",  
,^<+5TYM7  
/* (non-Javadoc) f$ Ap\(.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Txfb-f!mv\  
*/ (bo bKr  
public void sort(int[] data) { FQ-(#[  
int[] temp=new int[data.length]; ]nQ$:%HP  
mergeSort(data,temp,0,data.length-1); c~tSt.^WX  
} YwF6/JA0^  
eh`V#%S=  
private void mergeSort(int[] data,int[] temp,int l,int r){ zPw R1>gL  
int mid=(l+r)/2; "pWdz}!  
if(l==r) return ; ,jt098W  
mergeSort(data,temp,l,mid); eLC&f}  
mergeSort(data,temp,mid+1,r); <#s-hQ  
for(int i=l;i<=r;i++){ iZSSd{jO  
temp=data; XsG]-Cw  
} Cir =(  
int i1=l; Ov<3?)ok  
int i2=mid+1; xLD6A5n,[  
for(int cur=l;cur<=r;cur++){ KOmP-q=6  
if(i1==mid+1) W8P**ze4)  
data[cur]=temp[i2++]; Gz6GU.IyQy  
else if(i2>r) HJ'93,  
data[cur]=temp[i1++]; bNaUzM!,H  
else if(temp[i1] data[cur]=temp[i1++]; 6szkE{-/?  
else ?}]kIK}MC  
data[cur]=temp[i2++]; 7O9s 5  
} f C^l9CRY  
} G^(&B30V  
(Dar6>!  
} NF1D8uI  
o6y,M!p@  
改进后的归并排序: y(]|jRo  
aW6+Up+G*  
package org.rut.util.algorithm.support; {fb~`=?  
>=`c [=:Z_  
import org.rut.util.algorithm.SortUtil; L|2COX  
&Bp\kv  
/** p;7 4 +q  
* @author treeroot (k5DbP[  
* @since 2006-2-2 j^ _I{  
* @version 1.0 a?Y1G3U'  
*/ h/fCCfO,  
public class ImprovedMergeSort implements SortUtil.Sort { O7dFz)$  
lQsQRp  
private static final int THRESHOLD = 10; O9|'8"AF  
,SyUr/D  
/* >#:/ GN?  
* (non-Javadoc) YEQW:r_h.S  
* osd^SnL1/5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jccW8g~ ~  
*/ bg,}J/  
public void sort(int[] data) { )T64(_TE  
int[] temp=new int[data.length]; {a3kn\6H0  
mergeSort(data,temp,0,data.length-1); 0`!Q-G7  
} V{h@nhq  
^c\IZ5  
private void mergeSort(int[] data, int[] temp, int l, int r) { F3Y>hs):7  
int i, j, k; @"I#b99  
int mid = (l + r) / 2; BY0|exW  
if (l == r) YSV,q@I&1  
return; )KqR8UO  
if ((mid - l) >= THRESHOLD) X}*o[;2G  
mergeSort(data, temp, l, mid); 5|R2cc|"9  
else q`aY.dD=O  
insertSort(data, l, mid - l + 1); y@M}T{,/  
if ((r - mid) > THRESHOLD) 3\KII9  
mergeSort(data, temp, mid + 1, r); >-w=7,?'?z  
else BJ9sR.yX62  
insertSort(data, mid + 1, r - mid); h6h1.lZ  
^@Qi&g`lr?  
for (i = l; i <= mid; i++) { lk +K+Ra/  
temp = data; DVhTb  
} 1qC:3 ;P  
for (j = 1; j <= r - mid; j++) { %]ayW$4  
temp[r - j + 1] = data[j + mid]; ,z1!~gIal  
} ,w%oSlOu  
int a = temp[l]; z9ShP&^4[  
int b = temp[r]; 8sIrG  
for (i = l, j = r, k = l; k <= r; k++) { B"PHJj  
if (a < b) {  y"\,%.  
data[k] = temp[i++]; 5(|M["KK~  
a = temp; -WUYE  
} else { ]VWfdG  
data[k] = temp[j--]; }Hz-h4Z  
b = temp[j]; QWHy=(!  
} ,GX~s5S8  
} @E}X-r.^f  
} VK'T[5e  
A'( 7VJ  
/** *yaX:,'\$  
* @param data .gN$N=7<  
* @param l VxN64;|=  
* @param i (b%y$D  
*/ 8A:^K:Q  
private void insertSort(int[] data, int start, int len) { %%~}Lw  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 4$aO;Z_  
} z@~&Kwf\}  
} >C3NtGvy  
} atf%7}2  
} WkaR{{nM  
=u8D!AxT  
堆排序: fT3*>^Uv  
v'Vt .m&9&  
package org.rut.util.algorithm.support; # \; >8  
9>Uq$B  
import org.rut.util.algorithm.SortUtil; ^ L ^F=qx  
Ao":9r[V  
/** )M'UASB;8  
* @author treeroot ~" 0@u  
* @since 2006-2-2 -2& i)S0R  
* @version 1.0 mhk/>+hF  
*/ GzFE%< 9F  
public class HeapSort implements SortUtil.Sort{ /u)Rppu  
lKEX"KQ!  
/* (non-Javadoc) ~pevU`}Uqc  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^5]u BOv  
*/ gKN}Of@^1  
public void sort(int[] data) { L"foL  
MaxHeap h=new MaxHeap(); C4{\@v}t  
h.init(data); ISS\uj63M  
for(int i=0;i h.remove(); )_8}53C  
System.arraycopy(h.queue,1,data,0,data.length); |= cCv_y  
} z Bt`L,^  
:,kU#eZ$-  
private static class MaxHeap{ ,?k%jcR  
5#0e={X  
void init(int[] data){ Ud#X@xK<h  
this.queue=new int[data.length+1]; '_qQrP#  
for(int i=0;i queue[++size]=data; rKzlK 'U  
fixUp(size); P>Q{He:  
} %l} Q?Z  
} 0)AM-/"  
BF36V\  
private int size=0; =4zNo3IvL+  
vJRnBq+y  
private int[] queue; W7L+8LU;  
4TUtY:  
public int get() { ~o@\ n  
return queue[1]; H#L#2M%  
} Iy S"  
-|}%~0)/bH  
public void remove() { 0/\PZX+  
SortUtil.swap(queue,1,size--); yW\XNX  
fixDown(1); {/d4PI7)tK  
} {7?9jEj  
file://fixdown 7]|zkjgI  
private void fixDown(int k) { l(%k6  
int j; hCM8/Vvx6  
while ((j = k << 1) <= size) { CE#\Roi x)  
if (j < size %26amp;%26amp; queue[j] j++; cJ(BiL-uF  
if (queue[k]>queue[j]) file://不用交换 M XZq  
break; f xDj+Q1p  
SortUtil.swap(queue,j,k); 8xF)_UV  
k = j; Wp5]Uk  
} P8wy*JvT  
} H`m:X,6}  
private void fixUp(int k) { oYz!O]j;a  
while (k > 1) { tAqA^f*{  
int j = k >> 1; ~BZXt7DE  
if (queue[j]>queue[k]) 3ai (x1%  
break; QCOLC2I  
SortUtil.swap(queue,j,k); ja[OcR-tX  
k = j; Vkr`17`G  
} '{[!j6wt\  
} $PSY:Zz  
Q.,DZp   
} ( 0i'Nb"  
}:`5,b%Y_  
} V+lRi"m?|  
w[(n>  
SortUtil: {-@~Q.&}v  
5Yi Z-CQ>  
package org.rut.util.algorithm; [pii  
2sKG(^=Z  
import org.rut.util.algorithm.support.BubbleSort; lhqQ CV  
import org.rut.util.algorithm.support.HeapSort; XRa(sXA3  
import org.rut.util.algorithm.support.ImprovedMergeSort; pW\z\o/2  
import org.rut.util.algorithm.support.ImprovedQuickSort; 4\M8BRuE  
import org.rut.util.algorithm.support.InsertSort; *URdd,){i  
import org.rut.util.algorithm.support.MergeSort; sV u k  
import org.rut.util.algorithm.support.QuickSort; .H8mRvd?  
import org.rut.util.algorithm.support.SelectionSort; %}C9  
import org.rut.util.algorithm.support.ShellSort; |q;Al z{  
rA,CQypo  
/** Xv0F:1  
* @author treeroot D?e"U_  
* @since 2006-2-2 \a\= gn   
* @version 1.0 :pwa{P  
*/ |;P^clS3  
public class SortUtil { 8xgJSk  
public final static int INSERT = 1; T2wv0sHlt  
public final static int BUBBLE = 2; u4YM^* S.  
public final static int SELECTION = 3; &Yp+k}XU  
public final static int SHELL = 4; Xo Y7/&&  
public final static int QUICK = 5; Z_FNIM0f  
public final static int IMPROVED_QUICK = 6; d.`&0  
public final static int MERGE = 7; HsnG4OE  
public final static int IMPROVED_MERGE = 8; \c{R <Hh  
public final static int HEAP = 9; uPkb, :6~Z  
Gn59 yG!4  
public static void sort(int[] data) { }W$8M>l  
sort(data, IMPROVED_QUICK); f =o4I2Y[  
} b^ sb]bZW  
private static String[] name={ zmI5"K"'F  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" "u;YI=+  
}; vM`7s[oAK  
JSgpb ?(  
private static Sort[] impl=new Sort[]{ =}v ;1m  
new InsertSort(), h* s`^W3  
new BubbleSort(), :uo[&&c  
new SelectionSort(), EKuSnlTXba  
new ShellSort(), IIxJqGN:  
new QuickSort(), e_/x&a(i8  
new ImprovedQuickSort(), ]>D)#  
new MergeSort(), <F7V=Er  
new ImprovedMergeSort(), R:/ha(+  
new HeapSort() WmNYO,>  
}; t?{B_Bf  
-`7$Qu 2  
public static String toString(int algorithm){ !\;:36B#6  
return name[algorithm-1]; T C8`JU=wV  
} R \5Vq$Q  
"Sjr_! u  
public static void sort(int[] data, int algorithm) { Jx$iwu  
impl[algorithm-1].sort(data); .x}gg\  
} ;,XyN+2H  
;/'|WLI9  
public static interface Sort { =Vb~s+YW  
public void sort(int[] data); FXahZW~Ol  
} bLbR IY"l  
s<vs:jna  
public static void swap(int[] data, int i, int j) { t`5j4bdG  
int temp = data; vXdZmYrC  
data = data[j]; X |b2c+I  
data[j] = temp; Oz{%k#X-  
} Qz+sT6js-  
} jl}$HEI5m}  
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
如果您在写长篇帖子又不马上发表,建议存为草稿
认证码:
验证问题:
10+5=?,请输入中文答案:十五