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
  • 5654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。 N9c#N%cu  
插入排序: N}|1oQkjf  
Q<osYO{l  
package org.rut.util.algorithm.support; <!u(_Bxw/  
cP21x<n  
import org.rut.util.algorithm.SortUtil; TDtHR hq7  
/** EY1L5 Ba.  
* @author treeroot Rlr[uU_  
* @since 2006-2-2 Yk4ah$}%-^  
* @version 1.0 ht:L L#b*(  
*/ ,! ~U5~  
public class InsertSort implements SortUtil.Sort{ 4[0.M  
']Km%uwL  
/* (non-Javadoc) 8W.-Y|[5?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) n[-d~Ce2{  
*/ B*Q.EKD8s  
public void sort(int[] data) { a 0FU[*q  
int temp; wS2N,X/Y  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); u<@ 55k  
} V6<Ki  
} %MfT5*||f  
} P.|g4EdND  
:)e/(I]  
} RML'C:1  
Z*5]qh2r8  
冒泡排序: z:$TW{%M  
j%0 g *YI  
package org.rut.util.algorithm.support; RG_)<U/B  
7"_g X  
import org.rut.util.algorithm.SortUtil; =1kjKE !  
1n ZE9;o  
/** 0xutG/-&N  
* @author treeroot 64!V8&Ay  
* @since 2006-2-2 6~+?DIc  
* @version 1.0 *Oe;JqQkK  
*/ 7w"YCRKh  
public class BubbleSort implements SortUtil.Sort{ {' |yb  
;/nR[sibN  
/* (non-Javadoc) X?"Ro`S  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pQxi0/dp  
*/ X/wqfP  
public void sort(int[] data) { @l2AL9z$m>  
int temp; u`X}AKC  
for(int i=0;i for(int j=data.length-1;j>i;j--){ U#_rcu  
if(data[j] SortUtil.swap(data,j,j-1); t#J #DyY5  
} +%RXV ~  
} `!T6#6h  
} |c>A3 P$=B  
} )6zwprH!  
g>R md[!/  
} d3C*]|gQ  
DU4Prjb'  
选择排序: T1b9Zqc)f  
=mk7'A>l  
package org.rut.util.algorithm.support; esEOV$s}  
t\+vTvT)RE  
import org.rut.util.algorithm.SortUtil; :!EOg4%i  
WxLILh  
/** 4B8{\ "6  
* @author treeroot pRdO4?l  
* @since 2006-2-2 mk~Lkwl  
* @version 1.0 !*xQPanL  
*/ ?G-a:'1!6  
public class SelectionSort implements SortUtil.Sort { {z%%(,I  
xF{<-b  
/* =M9Od7\J  
* (non-Javadoc) 'W j Q  
* dkf?lmC+M  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) K`1\3J)  
*/  HPj7i;?O  
public void sort(int[] data) { f&>Q 6 {*]  
int temp; Om2 )$(  
for (int i = 0; i < data.length; i++) { L7*~8Y  
int lowIndex = i; W,>;`>  
for (int j = data.length - 1; j > i; j--) { (5N&bh`E  
if (data[j] < data[lowIndex]) { %lPF q-  
lowIndex = j; {Z|.-~W  
} g<{W\VOPm  
} |3g:q  
SortUtil.swap(data,i,lowIndex); F3a"SKMW  
} [w)6OT  
} r).S/  
Fx0<!_tY-  
} [OsW   
C`x>)wm:  
Shell排序: 7b T5-=.  
$wVY)p9Q  
package org.rut.util.algorithm.support; c>3W1"  
%P9Zx!i>  
import org.rut.util.algorithm.SortUtil; @ B3@M  
.Isg1qrC  
/** an<tupi[E  
* @author treeroot ;comL29l2`  
* @since 2006-2-2 6i \b&  
* @version 1.0 @*l}2W  
*/ M|`%4vk>  
public class ShellSort implements SortUtil.Sort{ 4 ITSDx  
z{^XU"yB  
/* (non-Javadoc) JWrvAM$O  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +B'9!t4 2  
*/ p2 y h  
public void sort(int[] data) { gzHjD-g-<  
for(int i=data.length/2;i>2;i/=2){ s\Cl3  
for(int j=0;j insertSort(data,j,i); {N;XjV1x  
} 5kJ>pb$/  
} `h Y:F(  
insertSort(data,0,1); U]ouBG8/  
} bd<zn*H Z*  
Oy[t}*Ik  
/** <  v_?}  
* @param data 2Sb~tTGz79  
* @param j GI7CZ  
* @param i A HKS [ N  
*/ M>_S%V4a  
private void insertSort(int[] data, int start, int inc) { t/S~CIA  
int temp; mnXaf)"  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); $- #M~eZv  
} "$:nz}  
} ^ tm,gh  
} F1|4([-<]  
P[ KJuc  
} 8N8B${X  
 Jb {m  
快速排序: r0j:ll d  
3QS"n.d  
package org.rut.util.algorithm.support; ;Fuxj!gF  
9^s sT>&/  
import org.rut.util.algorithm.SortUtil; ZwF_hm=/[  
1rEhL  
/** Q:kpaMA1P  
* @author treeroot %r~TMU2"  
* @since 2006-2-2 G m<t2Csn  
* @version 1.0 Ra_6}k  
*/ zYSXG-k  
public class QuickSort implements SortUtil.Sort{ sOLo[5y'  
~Cj+6CrT  
/* (non-Javadoc) _.FxqH>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) NRq jn; ,+  
*/ >&U]j*'4  
public void sort(int[] data) { K$' J:{yY  
quickSort(data,0,data.length-1); tp*AA@~  
} <h7C_^L10\  
private void quickSort(int[] data,int i,int j){ l= !KZaH  
int pivotIndex=(i+j)/2; 59T:{d;~  
file://swap S]{K^Q),  
SortUtil.swap(data,pivotIndex,j); 18ci-W#p  
uu=e~K  
int k=partition(data,i-1,j,data[j]); |n67!1  
SortUtil.swap(data,k,j); Te!q(;L`4  
if((k-i)>1) quickSort(data,i,k-1); Z^`>;n2  
if((j-k)>1) quickSort(data,k+1,j); R4QXX7h!  
}[l`R{d5q>  
} S| !U=&  
/** UO<%|{ W+  
* @param data cKK 1$x  
* @param i d:=5y)  
* @param j  i)8,u  
* @return WGVvBX7#  
*/ b\VY)=U  
private int partition(int[] data, int l, int r,int pivot) { 3=5+NJ'8  
do{ `<Zp!Hl(j  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); |3\ mH~Bw  
SortUtil.swap(data,l,r); {b+!0[  
} HK5\i@G+<  
while(l SortUtil.swap(data,l,r); P*R`3Y,  
return l; \\x``*  
} /_w oCLwQ#  
v*l1"0$  
} c<-_Vh.:5  
0ltq~K  
改进后的快速排序: Scs \nF2  
B7T(9Tj+Fh  
package org.rut.util.algorithm.support; ,T jd  
!>;p^^e  
import org.rut.util.algorithm.SortUtil; /[t]m,p$yq  
=Q Otag1;  
/** G4MNcy  
* @author treeroot +lU:I  
* @since 2006-2-2 :)?w 2'O  
* @version 1.0 U{n 0Z  
*/ ~N_\V  
public class ImprovedQuickSort implements SortUtil.Sort { xC!,v 0&  
3@s|tm1  
private static int MAX_STACK_SIZE=4096; +vBq,'k`  
private static int THRESHOLD=10; m/%sBw\rx  
/* (non-Javadoc) 07# ~cVI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) j$A~3O<e"  
*/ =R?NOWrDY  
public void sort(int[] data) { *V3}L Z  
int[] stack=new int[MAX_STACK_SIZE]; K )1K ]  
<+" Jh_N#  
int top=-1; US0)^TKrj  
int pivot; S#_i<u$$  
int pivotIndex,l,r; }O5c.3  
W9{6?,]  
stack[++top]=0; 44mYs`]  
stack[++top]=data.length-1; L&Bc-kMH  
TpuN[Y  
while(top>0){ @B*?owba>  
int j=stack[top--]; ,H1j&]E!  
int i=stack[top--]; Qp!r_a&  
d1D{wZ3g  
pivotIndex=(i+j)/2; \O^b|0zc  
pivot=data[pivotIndex]; $^y6>@~  
DU4NPys]y  
SortUtil.swap(data,pivotIndex,j); 6#K1LY5}  
G?8LYg!-  
file://partition kf~ D m}bV  
l=i-1; |u<qbl  
r=j; a(NN%'fDD  
do{ 3 =KfNz_  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); QROe+:  
SortUtil.swap(data,l,r); a RC >pK.  
} Ma: xxsH.  
while(l SortUtil.swap(data,l,r); 8sx\b  
SortUtil.swap(data,l,j); x0?8AG%  
;mu9;ixZ  
if((l-i)>THRESHOLD){ #&\^{Z  
stack[++top]=i; H"tS33  
stack[++top]=l-1; \vs,$h  
} Aj*0nV9_  
if((j-l)>THRESHOLD){ PBTGN;y  
stack[++top]=l+1; 5tX|@Z: z  
stack[++top]=j; !r,ZyJU  
} Jb#*QJ=  
|)} F}~&  
} PnJr  
file://new InsertSort().sort(data); 5^t68 WOl  
insertSort(data); Pv1C o:  
} dur}3oS0p  
/** TSt-#c4B  
* @param data &$.Vi&{.  
*/ MRZ Wfc  
private void insertSort(int[] data) { 4~53%=+  
int temp; /x"gpKwsB  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); DzkE*vR  
} jX$TiG  
} `^-?yu@  
} |qE"60&"}  
no?TEXp*  
} !Ui3}  
A=o p R  
归并排序: &kB[jz_[A  
>r2m1}6g"  
package org.rut.util.algorithm.support; L~cswG'K  
2fT't"gw  
import org.rut.util.algorithm.SortUtil; S)p{4`p%  
:W_S  
/** h6c8hp.  
* @author treeroot ?C(Z\"IX  
* @since 2006-2-2 Ro*$7j0!Hf  
* @version 1.0 4tz8^z[Kw  
*/ Uq 2Uv  
public class MergeSort implements SortUtil.Sort{ Ka1 F7b  
5@" bx=  
/* (non-Javadoc) 6d&BN7B  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) VZ &>zF  
*/ LDN'o1$qo  
public void sort(int[] data) { hV;Tm7I2  
int[] temp=new int[data.length]; )NGBA."t  
mergeSort(data,temp,0,data.length-1); /ZlW9|  
} 8)&H=#E  
IJ3[6>/ M0  
private void mergeSort(int[] data,int[] temp,int l,int r){ w6y?D<  
int mid=(l+r)/2; {c<MB xk  
if(l==r) return ; NIrK+uC.d  
mergeSort(data,temp,l,mid); 2lDgv ug  
mergeSort(data,temp,mid+1,r); j01.`G7Q  
for(int i=l;i<=r;i++){ KW+ps16~  
temp=data; ?d-(M' v.  
} %@'9<i8o  
int i1=l; o^wj_#ai$  
int i2=mid+1; lY[>}L*H8  
for(int cur=l;cur<=r;cur++){ yL^1s\<ddW  
if(i1==mid+1) 0|9(oP/:  
data[cur]=temp[i2++]; ELeR5xT  
else if(i2>r) M. 1R]x( |  
data[cur]=temp[i1++]; -N(y+~wN  
else if(temp[i1] data[cur]=temp[i1++]; {dhuvB  
else '\H{Y[  
data[cur]=temp[i2++]; 6C9KT;6  
} Z%\9y]zs  
} dt{ |bQLu3  
<~!7?ak  
} Pk T&zSQA  
W%hdS<b  
改进后的归并排序: RX4O1Z0  
)/PvaL  
package org.rut.util.algorithm.support; ^ ]SS\=7  
D"j =|4S#  
import org.rut.util.algorithm.SortUtil; &_HSrU  
#!u P >/  
/** G5egyP;  
* @author treeroot BoG/Hd.S  
* @since 2006-2-2 Mcj4GjV6:"  
* @version 1.0 b[$%Wg  
*/ wxB?}   
public class ImprovedMergeSort implements SortUtil.Sort { {g@Wd2-J}  
E&}r"rbI  
private static final int THRESHOLD = 10; ?/9]"HFHN  
[4]lAxrRF  
/* d{0b*l%  
* (non-Javadoc) Kg=TPNf"$  
* .*:SZ3v  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f/H rO6~k%  
*/ ?`_US7.@  
public void sort(int[] data) { X ~%I(?OX  
int[] temp=new int[data.length]; @y[Zr6\z  
mergeSort(data,temp,0,data.length-1); Yr-a8aSTE5  
} @xH|(  
LN ]ks)  
private void mergeSort(int[] data, int[] temp, int l, int r) { +2O('}t  
int i, j, k; m <IPi <  
int mid = (l + r) / 2; l <<0:~+q  
if (l == r) QbP W_)N  
return; w-FZ`OA`D  
if ((mid - l) >= THRESHOLD) 9*GwW&M%1_  
mergeSort(data, temp, l, mid); B]ul~FX  
else H"WkZX  
insertSort(data, l, mid - l + 1); fc._*y#AS  
if ((r - mid) > THRESHOLD) #`RY KQwB  
mergeSort(data, temp, mid + 1, r); D{Y~ kV|  
else w5gN8ZF3  
insertSort(data, mid + 1, r - mid); 6%H8Q v  
,w; ~R4x  
for (i = l; i <= mid; i++) { VQU[5C  
temp = data; C6,GgDH`  
} L~x3}o$-o  
for (j = 1; j <= r - mid; j++) { h>sz@\{  
temp[r - j + 1] = data[j + mid]; OYzt>hdH  
} #B8`qFpQC  
int a = temp[l]; }oigZI(1  
int b = temp[r]; !;{@O`j?b  
for (i = l, j = r, k = l; k <= r; k++) { GRCc<TM, U  
if (a < b) { }X$vriW  
data[k] = temp[i++]; *_`T*$  
a = temp; v:B_%-GfOA  
} else { Wg[?i C*~  
data[k] = temp[j--]; g9}u6q  
b = temp[j]; Y'i0=w6G  
} V2g,JFp&  
} .3?'+KZ,  
} +L;[-]E8  
D%(9ot{!e  
/** ^c83_93)R  
* @param data bxyEn'vNvQ  
* @param l zwR@^ 5^6  
* @param i Wv_5sPqLW  
*/ 7J~6J .m  
private void insertSort(int[] data, int start, int len) { hE\,4c1  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); oo) P(_"u  
} -}%'I ]R=  
} R"6Gm67t  
} Kv:UQdnU[  
} #i-!:6sLA  
m?'5*\(ST  
堆排序: bR?-B>EB  
)b m|],'  
package org.rut.util.algorithm.support; uYIw ?fXy  
1)/B V{n  
import org.rut.util.algorithm.SortUtil; b5Rjn1@  
$Rv}L'L  
/** ?Pw# !t  
* @author treeroot V[wEn9   
* @since 2006-2-2 H1| -f]!  
* @version 1.0 jz't!wj  
*/ jec03wH_0  
public class HeapSort implements SortUtil.Sort{ k^Tu9}[W1  
qnW5I_]  
/* (non-Javadoc) %=/Y~ml?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) iN*d84KTP  
*/ |.=Ee+HZ  
public void sort(int[] data) { vF;6Y(h>  
MaxHeap h=new MaxHeap(); -le:0NUwI  
h.init(data); Bh:AY@k  
for(int i=0;i h.remove(); (6u<w#u  
System.arraycopy(h.queue,1,data,0,data.length); v!t*Ng  
} |o~FKy1'z\  
Vyj>&"28  
private static class MaxHeap{ 1]A%lud4  
$Bz|[=  
void init(int[] data){ JnhHV(H  
this.queue=new int[data.length+1]; o%h\55S  
for(int i=0;i queue[++size]=data; 4en&EWUr  
fixUp(size); UL; d H  
} @_Aqk{3  
} ^4Tr @g#]"  
}CsUZ&*&  
private int size=0; tH 5f;mY,  
\@pl:Os  
private int[] queue; 00U8<~u  
Xa*52Q`_  
public int get() { T=VVK6Lc:  
return queue[1]; 'gUHy1p  
} vnk"0d.  
p!' "hx  
public void remove() { I-kM~q_  
SortUtil.swap(queue,1,size--); U'";  
fixDown(1); 6TfL|W<  
} X^_,`H@  
file://fixdown  1k2Ck  
private void fixDown(int k) { vH# US  
int j; "M7ry9dDH  
while ((j = k << 1) <= size) { Lr)h>j6\  
if (j < size %26amp;%26amp; queue[j] j++; L]9!-E  
if (queue[k]>queue[j]) file://不用交换 m4 E 6L  
break; hrZ~7 0r  
SortUtil.swap(queue,j,k); <$UMMA  
k = j; b$PNZC8f  
} Y4@~NCU/  
} F5:*;E;$  
private void fixUp(int k) { :J(a;/~ip  
while (k > 1) { U(W#H|  
int j = k >> 1; J2aA"BhdC"  
if (queue[j]>queue[k]) n.$<D[@  
break; )K@ 20Q+0K  
SortUtil.swap(queue,j,k); GJ%It .  
k = j; RK'3b/T  
} m oFK/5cJ  
} 5PKv@Mk  
=_%:9FnQ0  
} wIx Lr{  
K_]LK  
} rM[Ps=5  
*Ei~2O}  
SortUtil: |YZ`CN<  
k49CS*I  
package org.rut.util.algorithm; X%`8h _  
s<:"rw`  
import org.rut.util.algorithm.support.BubbleSort; SnQ$  
import org.rut.util.algorithm.support.HeapSort; jt3s;U*  
import org.rut.util.algorithm.support.ImprovedMergeSort; AKa{C f  
import org.rut.util.algorithm.support.ImprovedQuickSort; }y=7r!{@  
import org.rut.util.algorithm.support.InsertSort; L4Nk+R;  
import org.rut.util.algorithm.support.MergeSort; C9gF2ii|?  
import org.rut.util.algorithm.support.QuickSort; +]uy  
import org.rut.util.algorithm.support.SelectionSort; 1)u= &t,  
import org.rut.util.algorithm.support.ShellSort; {:6VJ0s\  
 V}8J&(\  
/** >/e#Z h  
* @author treeroot ]lz,?izMR  
* @since 2006-2-2 >:OOuf#  
* @version 1.0 YI%7#L7C  
*/ Oq+C<}eg  
public class SortUtil { N_C\L2  
public final static int INSERT = 1; \hi{r@k>}  
public final static int BUBBLE = 2; p@cPm8L3  
public final static int SELECTION = 3; M_9|YjwS  
public final static int SHELL = 4; Kwh3SU=L}  
public final static int QUICK = 5; (5km]`7z  
public final static int IMPROVED_QUICK = 6; G92=b *x/  
public final static int MERGE = 7; Aba6/  
public final static int IMPROVED_MERGE = 8; XHN?pVZ7  
public final static int HEAP = 9; R#1m_6I  
Hd;>k$B  
public static void sort(int[] data) { ? ~_%I  
sort(data, IMPROVED_QUICK); c?q#?K aF  
} NNe'5q9  
private static String[] name={ z W+wtYV4  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ,0-   
}; 4RTEXoXs  
Yn J=&21  
private static Sort[] impl=new Sort[]{ ?_HTOOa  
new InsertSort(), !o*oT}6n  
new BubbleSort(), j:<E=[Kl  
new SelectionSort(), i]Kq  
new ShellSort(), [W^6=7EO  
new QuickSort(), -(:BkA  
new ImprovedQuickSort(), K<s\:$VVh  
new MergeSort(), ?:U6MjlQ"{  
new ImprovedMergeSort(), oWXvkDN   
new HeapSort() v+Mt/8  
}; : FxZdE  
:M=!MgD3w  
public static String toString(int algorithm){ `uzRHbJ`  
return name[algorithm-1]; kx'6FkZPIr  
} )K5~r>n&  
Gc@ENE f  
public static void sort(int[] data, int algorithm) { dZnq 96<:|  
impl[algorithm-1].sort(data); N.&)22<m9  
} uX.Aq@j  
{Ziq~{W_  
public static interface Sort { X^aujK^@  
public void sort(int[] data); QF%@MK0zC  
} &m Y<e4  
_II;$_N  
public static void swap(int[] data, int i, int j) { f, ;sEV  
int temp = data; =q6yb@  
data = data[j]; |W#^L`!G  
data[j] = temp; {?5EOp~  
} BJW;A>@Pj  
} T \0e8"iZ  
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
温馨提示:欢迎交流讨论,请勿纯表情、纯引用!
认证码:
验证问题:
10+5=?,请输入中文答案:十五