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
  • 7759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。 fyT!/  
插入排序: S tn[M|  
%$Mvq&ZZ  
package org.rut.util.algorithm.support;  Q"%L  
U.d*E/OR5  
import org.rut.util.algorithm.SortUtil; :Ruj;j  
/** +HUI1@ql  
* @author treeroot bSBI[S  
* @since 2006-2-2 Dr<%Lr  
* @version 1.0 UI |D?z<  
*/ S =eP/  
public class InsertSort implements SortUtil.Sort{ 2L ~U^  
'Zk&AD ~  
/* (non-Javadoc) ykM(` 1` m  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 8ec~"vGLz~  
*/ -x5^>+Y4  
public void sort(int[] data) { t4 h5R  
int temp; @^/JNtbH!  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ,odjL6u  
} `ffWV;P  
} Eo)n( Z9  
} [G4#DP\t>p  
sLb[ZQ;j  
} ZJ  u\  
n(-XI&Kn  
冒泡排序: '^}l|(  
L<5go\!bV  
package org.rut.util.algorithm.support; N!^U{;X7/  
ytr~} M%  
import org.rut.util.algorithm.SortUtil; zLC\Rc4  
rn U2EL  
/** b'uH4[zX%  
* @author treeroot '9H]S Ew  
* @since 2006-2-2 ZN',=&;n'  
* @version 1.0 X|@|ZRN  
*/ 8BC}D+q  
public class BubbleSort implements SortUtil.Sort{ jcv3ES^  
.u)Po;e`  
/* (non-Javadoc) VI[ikNpX  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5k<qJ9  
*/ {}{|trr-E  
public void sort(int[] data) { !2$O^ }6"  
int temp; { ~FYiX  
for(int i=0;i for(int j=data.length-1;j>i;j--){ =A GsW  
if(data[j] SortUtil.swap(data,j,j-1); Z_cTuu0'  
} q/<.^X  
} bY&s $Ry3"  
} 'C!b($Y  
} dGTAZ(1W  
$yI!YX&  
} f LxFF  
Ri"3o  
选择排序: /DJyNf*  
\<]nv}1O  
package org.rut.util.algorithm.support; &=xm>;`3  
n\ZDI+X  
import org.rut.util.algorithm.SortUtil; ~;3N'o  
[#$z.BoEo  
/** aKhI|%5kA  
* @author treeroot 0r.*7aXu  
* @since 2006-2-2 jun>(7  
* @version 1.0 Tr-gdX ;  
*/ zgJ%Zr!~  
public class SelectionSort implements SortUtil.Sort { |*e >hk  
G<Z|NT  
/* ^kzw/. I{  
* (non-Javadoc) /`Yp]l  
* CT6a  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) y8D'V)B  
*/ K9;pX2^z9  
public void sort(int[] data) { qR--lvO  
int temp; #,0%g 1  
for (int i = 0; i < data.length; i++) { OGzth$7A  
int lowIndex = i; ~ubGx  
for (int j = data.length - 1; j > i; j--) { }2|>Y[v2j  
if (data[j] < data[lowIndex]) { C;y3?+6P$  
lowIndex = j; kViX FPW  
} o>';-} E  
} w<| ^i*  
SortUtil.swap(data,i,lowIndex); a#nVRPU8m  
} %S]H  
} Sdy\s5  
2fu|X#R  
} {*r*+}@  
qHt!)j9GKv  
Shell排序: 2a3h m8%U  
S2HGf~rE  
package org.rut.util.algorithm.support; /o*r[g7<  
.:B] a7b  
import org.rut.util.algorithm.SortUtil; `i<;5s!rX  
8&7LF  
/** 4/e-E^  
* @author treeroot I!%T!B540  
* @since 2006-2-2 [k ZvBd  
* @version 1.0 >%h_ R:  
*/ #(mm6dj  
public class ShellSort implements SortUtil.Sort{ ;H9d.D8  
TyY[8J|  
/* (non-Javadoc) vd c k  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A% 9TS/-p  
*/ /d ?)  
public void sort(int[] data) { )2C_6eR  
for(int i=data.length/2;i>2;i/=2){ ,^3eMn  
for(int j=0;j insertSort(data,j,i); OW<i"?0  
} lX/6u E_%  
} 7hqa|  
insertSort(data,0,1); u.YPb@  
} AF g*  
?g+0S@{i $  
/** y TfAS .  
* @param data (D]l/akP  
* @param j *A':^vgk  
* @param i In#V1[io  
*/ X2hV)8Sk  
private void insertSort(int[] data, int start, int inc) { e; 5 n.+m  
int temp; JhRXfIK>{  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); x_CB'Rr6  
} :A%uXgK<k  
} OM*N)*  
} jbcJ\2  
-g(&5._,ZW  
} zA=gDuy3@  
<"Z]S^>$  
快速排序: p&ytUT na  
:[ z=u  
package org.rut.util.algorithm.support; ?sWPx!tU  
]#]|]>& <  
import org.rut.util.algorithm.SortUtil; /PH+K24v~  
qMD6LWJ  
/** -(V]knIF  
* @author treeroot kFZw"5hb  
* @since 2006-2-2 rC V&& 09  
* @version 1.0 o65:)z u  
*/ rT9<_<  
public class QuickSort implements SortUtil.Sort{ %wn|H>  
4 :RL[;  
/* (non-Javadoc) a@$U?=\e  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "vQ$RW -  
*/ H6X]D"Y,  
public void sort(int[] data) { "PK\;#[W|  
quickSort(data,0,data.length-1); teH $hd-q  
} Bh$ hgf.C  
private void quickSort(int[] data,int i,int j){ *jM~VTXwt  
int pivotIndex=(i+j)/2; vY0C(jK  
file://swap ig:,:KN  
SortUtil.swap(data,pivotIndex,j); .q$HL t  
k_?xi OSh  
int k=partition(data,i-1,j,data[j]); 12BTZ  
SortUtil.swap(data,k,j); N+%E=D>  
if((k-i)>1) quickSort(data,i,k-1); W}p>jP}  
if((j-k)>1) quickSort(data,k+1,j); @ de_|*c  
:c3}J<Z  
} roT$dL P)w  
/** F!OVx<  
* @param data >F+Mu-^  
* @param i v J9Uw  
* @param j ~`)`Ip  
* @return )u?pqFH  
*/ X-&t!0O4}`  
private int partition(int[] data, int l, int r,int pivot) { rZ5vey  
do{ g((glr)6M  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); +ptVAg+  
SortUtil.swap(data,l,r); "Opk:;.  
} 7WK^eW"y8  
while(l SortUtil.swap(data,l,r); )\#w=P  
return l; 9SF2  
} -3`S;Dmn  
?;Dh^mc  
} QSPneYD  
YCZl1ry:V=  
改进后的快速排序: |6/k2d{,(  
q8%T)$!  
package org.rut.util.algorithm.support; #T:#!MKa  
~?i;~S  
import org.rut.util.algorithm.SortUtil; 5VI c  
FG]xn(E  
/** Wm>[5h%>  
* @author treeroot ?oF+?l  
* @since 2006-2-2 pJ35M  
* @version 1.0 ^_W+  
*/ vW,dJ[N6jm  
public class ImprovedQuickSort implements SortUtil.Sort { 88(h`RGMh  
.y'iF>QQ\  
private static int MAX_STACK_SIZE=4096; N>qOiw[  
private static int THRESHOLD=10; QCB2&lN\&L  
/* (non-Javadoc) s%F}4W2s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c"`o V! m  
*/ Sc03vfmo"N  
public void sort(int[] data) { ~/Gx~P]  
int[] stack=new int[MAX_STACK_SIZE]; R~OameRR  
d 7vD  
int top=-1; wBz?OnD/D  
int pivot; 9qc<m'MZ  
int pivotIndex,l,r; 'p<lfT  
sq `f?tA?  
stack[++top]=0; '.Iz*%"  
stack[++top]=data.length-1; -6lsR  
&)jBr^x#>  
while(top>0){ A[lbBR  
int j=stack[top--]; W4n;U-Hb  
int i=stack[top--]; <vxj*M;  
zbQ-l1E  
pivotIndex=(i+j)/2; O.61-rp  
pivot=data[pivotIndex]; +M4X r *  
B#RBR<MFC  
SortUtil.swap(data,pivotIndex,j); )~/;Xl#b-  
g'2'K  
file://partition /5cFa  
l=i-1; GIXxOea1  
r=j; k?r -%oJ7  
do{ h'*>\eC6  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 8!8 yA  
SortUtil.swap(data,l,r); {OFbU  
} [:M:6JJ  
while(l SortUtil.swap(data,l,r); \@G 7Kk*l  
SortUtil.swap(data,l,j); Uc oVp}vl  
mocR_3=Q?  
if((l-i)>THRESHOLD){ ,H6*9!Dv2  
stack[++top]=i; tA#7Xr+  
stack[++top]=l-1; CeL`T:]r  
} +?"N5%a%F  
if((j-l)>THRESHOLD){ \:>GF-Z(  
stack[++top]=l+1; ]O%wZIp\P  
stack[++top]=j; zadn`B#2  
} dnRS$$9#  
K)NB{8 _  
} M0Eq 7:Ba  
file://new InsertSort().sort(data); /u hA\m(  
insertSort(data); s?qRy 2  
} tG!ApL  
/** 6T3uv,2  
* @param data "J51\8G@@  
*/ -nBb - y  
private void insertSort(int[] data) { SePPI.n  
int temp; [!^Q_O  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); rHS;wT  
} y2"PKBK\_  
} hN0Y8Ia/5%  
} ?&qa3y)wX:  
jC<1bf$K  
} ~!PAs_O  
?-'m#5i"  
归并排序: 2oY.MQD7iW  
VD=}GY33=  
package org.rut.util.algorithm.support; K})=&<M0  
q. i2BoOd  
import org.rut.util.algorithm.SortUtil; DV={bcQ  
!_zp'V]?  
/** FG-v71!h#  
* @author treeroot /g|H?F0  
* @since 2006-2-2 E;$;g#ksf  
* @version 1.0 OR{<)L  
*/ !v^{n+  
public class MergeSort implements SortUtil.Sort{ )Dg;W6  
g43j-[j)  
/* (non-Javadoc) /O,>s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7'c ;$~  
*/ zWN/>~}U \  
public void sort(int[] data) { CV9o,rL  
int[] temp=new int[data.length]; B=0U^wL  
mergeSort(data,temp,0,data.length-1); s^atBqw,  
} hDO\Q7  
ny(`An  
private void mergeSort(int[] data,int[] temp,int l,int r){ :v=^-&t  
int mid=(l+r)/2; QNH-b9u>8  
if(l==r) return ; Y]zy=8q  
mergeSort(data,temp,l,mid); }6Ut7J]a|  
mergeSort(data,temp,mid+1,r); <)hA? 3J  
for(int i=l;i<=r;i++){ FU{$oCh/5  
temp=data; _*tU.x|DP  
} 5=;LHS*   
int i1=l; S JseP_-  
int i2=mid+1; %l4;-x<e  
for(int cur=l;cur<=r;cur++){ zmA]@'j  
if(i1==mid+1) iy<|<*s2D  
data[cur]=temp[i2++]; (-<s[VnXP  
else if(i2>r)  U(d K  
data[cur]=temp[i1++]; {Xw6]d  
else if(temp[i1] data[cur]=temp[i1++]; 11'^JmKA  
else &dH[lB  
data[cur]=temp[i2++]; a#huK~$~  
} $;4y2?E  
} @3^D[  
>)Udb//  
} $ \yZ;Z:  
uwL^Tq}Yh  
改进后的归并排序: }?\8%hK"a7  
%>z4hH,  
package org.rut.util.algorithm.support; + :IwP  
v>XAzA  
import org.rut.util.algorithm.SortUtil; ;+Dq 3NE  
L:.z FW,  
/** 9wTN *y  
* @author treeroot Z! /!4(Fh  
* @since 2006-2-2 P&>!B,f  
* @version 1.0 Jbv[Ql#  
*/ azs lNL  
public class ImprovedMergeSort implements SortUtil.Sort { ?Z0NHy;5  
rN3qTp  
private static final int THRESHOLD = 10; /wR,P  
iL$~d@AEn  
/* {4 y#+[  
* (non-Javadoc) >=6 j:  
* H@'f=Y*D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) '^{:HR#i  
*/ X([8TR  
public void sort(int[] data) { /<R[X>]<F  
int[] temp=new int[data.length]; /q^\g4J  
mergeSort(data,temp,0,data.length-1); A6?!BB=]  
} 9n#lDL O  
Q}cti /  
private void mergeSort(int[] data, int[] temp, int l, int r) { N|%r5%  
int i, j, k; 6=qC/1,l  
int mid = (l + r) / 2; X|&H2y|*7  
if (l == r) n^b CrvD  
return; a4 7e  
if ((mid - l) >= THRESHOLD) 4GH&u,  
mergeSort(data, temp, l, mid); cucmn*o?  
else >&ZlC E  
insertSort(data, l, mid - l + 1); )Gk?x$pY@  
if ((r - mid) > THRESHOLD) Bp@\p)P(  
mergeSort(data, temp, mid + 1, r); ~d3@x\I?  
else q/Vl>t  
insertSort(data, mid + 1, r - mid); <lNNT6[/r  
O}(sn  
for (i = l; i <= mid; i++) { <6s@eare8  
temp = data; w^=(:`  
} t: oQHhO?  
for (j = 1; j <= r - mid; j++) { {'[VL;k  
temp[r - j + 1] = data[j + mid]; =v 'Aub  
} )_OGt[_H  
int a = temp[l]; pQ!lY  
int b = temp[r]; KeB??1S  
for (i = l, j = r, k = l; k <= r; k++) { 'U*#7 1S  
if (a < b) { )Vrp<"v  
data[k] = temp[i++]; Q`NdsS2  
a = temp; ,qo^G0XO  
} else { 5`$!s17  
data[k] = temp[j--]; mP/#hwzB&q  
b = temp[j]; (+0(A777M  
} p|NY.N  
} -T i<H9OV  
} P-$ ,  
<RpTk*Yo^=  
/** $}0!dR2  
* @param data e@;'#t  
* @param l BlZB8KI~  
* @param i 7[uN;B#V  
*/ 'h 7x@[|  
private void insertSort(int[] data, int start, int len) { k.2GIc:5  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); tQYV4h\Qj  
} 7E#h(bt j  
} :Ny[?jt c  
} "EA =auN{  
} ?'|GGtvm  
E2t& @t%W  
堆排序: cH$( *k9%M  
WNb2"W  
package org.rut.util.algorithm.support; `B&=ya|bl  
6rWq hIaI  
import org.rut.util.algorithm.SortUtil; CB,2BTtRE  
dZ8ldpf8  
/** US^%pd  
* @author treeroot KKb7dZbt<  
* @since 2006-2-2 hO{&bY0  
* @version 1.0 ?u;m ],w!  
*/ #8 ^b]  
public class HeapSort implements SortUtil.Sort{ v _:KqdmO]  
*GY8#Az  
/* (non-Javadoc) (UhJ Pco"  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~% t'}JDZ  
*/ rZ5xQ#IA  
public void sort(int[] data) { 'vu]b#l3  
MaxHeap h=new MaxHeap(); ^'du@XCf}  
h.init(data); JUj.:n2e  
for(int i=0;i h.remove(); F|/6;&*?M  
System.arraycopy(h.queue,1,data,0,data.length); R]Z#VnL@qz  
} nT2b"wkTT  
Nu3IYS5&  
private static class MaxHeap{ ]bmf}&  
&iq'V*+-\  
void init(int[] data){ 4M|C>My  
this.queue=new int[data.length+1]; :w Y%=  
for(int i=0;i queue[++size]=data; /.rj\,  
fixUp(size); _A& [rBm|  
} n9 FA` e  
} 7J`v#  
Mae2L2vc  
private int size=0; ])bgUH  
&'i>d&  
private int[] queue; \L$]2"/v-  
_*[vKS A&  
public int get() { l x0BKD?n  
return queue[1]; ;14Q@yrZ0  
} =B'Yx  
|0>rojMq  
public void remove() { $sb@*K}:4  
SortUtil.swap(queue,1,size--); q o-|.I  
fixDown(1); LkK[,Qj  
} C~K/yLCAi  
file://fixdown  xiQc\k$  
private void fixDown(int k) { vl}}h%BC  
int j; <nV3`L&]  
while ((j = k << 1) <= size) { U UtS me  
if (j < size %26amp;%26amp; queue[j] j++; vO"E4s  
if (queue[k]>queue[j]) file://不用交换  ]SL+ZT  
break; 0$Zh4Y  
SortUtil.swap(queue,j,k); -Gl!W`$I `  
k = j; =%>E8)Jb  
} \k6OP  
} Bd;EI)JT  
private void fixUp(int k) { v$q\3#5|'  
while (k > 1) { VC Ay~,  
int j = k >> 1; JJM!pD\h  
if (queue[j]>queue[k]) JlE+CAny  
break; ZD$I-33W  
SortUtil.swap(queue,j,k); nSZp,?^  
k = j; 9WQ'"wyAQ  
} ov\%*z2=  
} ww%4MHPp8  
4 BNbS|?vV  
} +, rm  
1. Q"<[M  
} @}+B%R  
^;\6ju2  
SortUtil: ~+RrL,t#  
Tn38]UL  
package org.rut.util.algorithm; A9[D.W9>  
cyL|.2,  
import org.rut.util.algorithm.support.BubbleSort; 9N) Ea:N  
import org.rut.util.algorithm.support.HeapSort; uIJ zz4  
import org.rut.util.algorithm.support.ImprovedMergeSort;  f|yq~3x)  
import org.rut.util.algorithm.support.ImprovedQuickSort; ,p..h+l  
import org.rut.util.algorithm.support.InsertSort; ry* 9  
import org.rut.util.algorithm.support.MergeSort; ??P3gA  
import org.rut.util.algorithm.support.QuickSort; 5(Xq58nhxI  
import org.rut.util.algorithm.support.SelectionSort; V0F1X s`  
import org.rut.util.algorithm.support.ShellSort; i.ivHV~ -  
|l?*' =  
/** 2qKAO/_O  
* @author treeroot eN<?rVZl  
* @since 2006-2-2 f_QZ ql  
* @version 1.0 h#|Ac>fz  
*/ gGbqXG^  
public class SortUtil { uv7tbI"r  
public final static int INSERT = 1; #Z_f/@b  
public final static int BUBBLE = 2; 9v}vCg  
public final static int SELECTION = 3; f{D~ZC.*  
public final static int SHELL = 4; 6~8dMy;w  
public final static int QUICK = 5; tZD^<Q7}\  
public final static int IMPROVED_QUICK = 6; M;@/697G  
public final static int MERGE = 7; 6wyhL-{:  
public final static int IMPROVED_MERGE = 8; @#5?tk0  
public final static int HEAP = 9; x^UAtKSy  
45Q#6Bt E  
public static void sort(int[] data) { I{u+=0^Y  
sort(data, IMPROVED_QUICK); @'?7au ''  
} -$y/*'  
private static String[] name={ 3 W?H^1t  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" {=E,.%8  
}; e= _7Q.cn  
I%ZSh]On  
private static Sort[] impl=new Sort[]{ 6J\A%i  
new InsertSort(), Q .cL1uHc  
new BubbleSort(), brt` oR  
new SelectionSort(), 6 Zv~c(   
new ShellSort(), :}fIu?hCA  
new QuickSort(), 4:XVu  
new ImprovedQuickSort(), 'ewVn1ME[  
new MergeSort(), p/&s-G F  
new ImprovedMergeSort(), Jd/XEs?<q  
new HeapSort() 0Y ld!L  
}; ? `#  
n'Z5rXg  
public static String toString(int algorithm){ }kb6;4>c  
return name[algorithm-1]; ~C;gEE-  
} \ >|:URnD  
w<=-n ;2  
public static void sort(int[] data, int algorithm) { l#%G~c8x  
impl[algorithm-1].sort(data); ndB*^nT  
} CKRnkTTiV  
W q>qso  
public static interface Sort { 1ba* U~OEg  
public void sort(int[] data); CjlA"_!%E  
} 6ALUd^  
}h_= n>  
public static void swap(int[] data, int i, int j) { &$E.rgtg  
int temp = data; bjGQ04da  
data = data[j]; AoN |&o  
data[j] = temp; W&Gt^5  
} "+KAYsVtU  
} 7 `& NB]  
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:
10+5=?,请输入中文答案:十五