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
  • 9071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。 #P^cR_|\  
插入排序: d[t+iBP;)  
xGBp+j1H  
package org.rut.util.algorithm.support; vgyv~Px]AW  
+eIX{J\s  
import org.rut.util.algorithm.SortUtil; $Fr>'H+i  
/** sX,."@[  
* @author treeroot }zE Qrfl  
* @since 2006-2-2 S0zk<S  
* @version 1.0 v ?OIK=Xm  
*/ p10i_<J]=  
public class InsertSort implements SortUtil.Sort{ ]Av)N6$&-Z  
Y6R+i0guz  
/* (non-Javadoc) =Felo8+   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {*lRI  
*/ ?Z{:[.  
public void sort(int[] data) { k04CSzE"%  
int temp; eGEeWJ}[$  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ;vkk$ -  
} ]NRQM8\  
} :jP4GCxU|  
} %s(Ri6R&  
D'UYHc {  
} =eB^( !M  
\0'0)@uziQ  
冒泡排序: J;mvD^`g  
j_#oP  
package org.rut.util.algorithm.support; q'zV9  
/bBFPrW  
import org.rut.util.algorithm.SortUtil; tAxS1<T4  
TM?RH{(r  
/** { d*?O  
* @author treeroot sDF5  
* @since 2006-2-2 ' Akt5q  
* @version 1.0 M<KWx'uV  
*/ aplOo[  
public class BubbleSort implements SortUtil.Sort{ :TTZ@ q  
^~65M/  
/* (non-Javadoc) S(Ej: H  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Rv^ \o  
*/ +Vsd%AnN"l  
public void sort(int[] data) { fMSB  
int temp; l^WPv/}?  
for(int i=0;i for(int j=data.length-1;j>i;j--){ /P}Wp[)u  
if(data[j] SortUtil.swap(data,j,j-1); F%s'R 0l  
} q<2b,w==  
} YH .+(tNv  
} _go1gf7  
} dK^WZQ  
N:]Ud(VRM  
} m~x O;_m  
6t0-u~  
选择排序: *(pmFEc  
*^WY+DV  
package org.rut.util.algorithm.support; 017(I:V?(:  
hZ;[}5T\<S  
import org.rut.util.algorithm.SortUtil; B+w< 0No  
b+DBz}L4  
/** )c"m:3D@  
* @author treeroot _R ] qoUw;  
* @since 2006-2-2 >qT4'1S*g  
* @version 1.0 /"LcW"2;N  
*/ d0"Xlle ld  
public class SelectionSort implements SortUtil.Sort { =4H"&Eu{  
Hb :@]!r>  
/* { :~&#D  
* (non-Javadoc) #383W)n  
* IBY(wx[5S  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) hiM nU  
*/ tPb$ua|  
public void sort(int[] data) { B[8`l} t  
int temp; kd3vlp  
for (int i = 0; i < data.length; i++) { P!*G"^0<  
int lowIndex = i; F\"`^`(O  
for (int j = data.length - 1; j > i; j--) { yo=0Ov  
if (data[j] < data[lowIndex]) { x+V@f~2F  
lowIndex = j; < `/22S"  
} 'A}@XGE:p  
} ^]A,Q%1q^  
SortUtil.swap(data,i,lowIndex); $^XCI%DH  
} S.$/uDwo  
} P+j5_V{\b  
q4wS<, 3  
} 0wlKBwf`J  
LE1#pB3TG  
Shell排序: ]= EYju@  
@UG%B7  
package org.rut.util.algorithm.support; o[ua$+67E  
@|hn@!YK  
import org.rut.util.algorithm.SortUtil; f(r=S Xa*  
oTjsiXS  
/** ;xKPa6`E  
* @author treeroot |@Mx? (  
* @since 2006-2-2 K:3u/C`  
* @version 1.0 X":T>)J-  
*/ I6B`G Im5  
public class ShellSort implements SortUtil.Sort{  q(C <w  
{*jo,<4ee  
/* (non-Javadoc) >#[u"CB  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c@xQ2&i  
*/ g AZe&"K  
public void sort(int[] data) { %Uz 5Ve  
for(int i=data.length/2;i>2;i/=2){ c'gV  
for(int j=0;j insertSort(data,j,i); e71dNL'$  
} E#L"*vh  
} l)^sE)  
insertSort(data,0,1); )A 6 eD  
} pm 4"Q!K  
`1T?\  
/** -? |-ux  
* @param data ;vDjd2@  
* @param j i4XE26B;e  
* @param i #,4CeD|(D,  
*/ )8rN   
private void insertSort(int[] data, int start, int inc) { A/%+AH(  
int temp; )PNeJf|@  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); q#n0!5Lv2  
} 0OrT{jo  
} M'"@l $[QM  
} JO^E x1c  
S.#IC lV  
} km(Mv  
ZI0C%c.~  
快速排序: t;?TXAA  
6hvmp  
package org.rut.util.algorithm.support; 42Vz6 k:  
<.HDv:  
import org.rut.util.algorithm.SortUtil; {#]vvO2~$  
,8vqzI  
/** pFZ2(b&  
* @author treeroot H1bPNt63  
* @since 2006-2-2 @0 mR_\u\  
* @version 1.0 =%\y E0#  
*/ !4blX'<w  
public class QuickSort implements SortUtil.Sort{ :4(.S<fH)-  
uoIvFcb^  
/* (non-Javadoc) '0juZ~>}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) TO|&}sDh  
*/  LG/6_t}  
public void sort(int[] data) { GF3"$?Cw  
quickSort(data,0,data.length-1); v p>,}nx4  
} 1lJY=`8qa  
private void quickSort(int[] data,int i,int j){ 4.^1D';(  
int pivotIndex=(i+j)/2; D@]*{WO  
file://swap iO 9fg  
SortUtil.swap(data,pivotIndex,j); fF"\$Ny  
j%V95M% $  
int k=partition(data,i-1,j,data[j]); Gh:hfHiG  
SortUtil.swap(data,k,j); *u|bmt  
if((k-i)>1) quickSort(data,i,k-1); ?<l,a!V'6  
if((j-k)>1) quickSort(data,k+1,j); r/32pY  
#RG/B2  
} )0Lno|l  
/** *_aeK~du.  
* @param data x2KIGG ^  
* @param i O$2'$44HX  
* @param j b\dzB\,&  
* @return etPb^&#$  
*/ }!W,/=z*  
private int partition(int[] data, int l, int r,int pivot) { J=*X%^jX9Z  
do{ @ z{E  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); PS13h_j  
SortUtil.swap(data,l,r); Buue][[  
} _2wU(XYH  
while(l SortUtil.swap(data,l,r); !='?+Ysxs  
return l; S"/M+m+ ]  
} m-M.F9R  
nisW<Q`uB  
} vwlPFr Ll  
dC F!.  
改进后的快速排序: x P3v65Q1  
}aPx28:/  
package org.rut.util.algorithm.support; 9qHbV 9,M  
[KT'aGK$  
import org.rut.util.algorithm.SortUtil; D(m2^\O[  
]4$t'wI.  
/** !@r1B`]j+"  
* @author treeroot 2}ttC m  
* @since 2006-2-2 KXAh0A?&+  
* @version 1.0 exn Fy-  
*/ h{R>L s  
public class ImprovedQuickSort implements SortUtil.Sort { [|XMR=\>  
}=+J&cR  
private static int MAX_STACK_SIZE=4096; ?3x7_=4t@  
private static int THRESHOLD=10; "-pQL )f  
/* (non-Javadoc) }AZ0BI,TI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) aMxg6\8  
*/ ~BS Ip .  
public void sort(int[] data) { ;~2RWj=-  
int[] stack=new int[MAX_STACK_SIZE]; w=UFj  
sn4wd:b7%  
int top=-1; f:=y)+@1My  
int pivot; {GTOHJ2  
int pivotIndex,l,r; E>bK-jG  
bpQ5B'9  
stack[++top]=0; r&u&$ "c  
stack[++top]=data.length-1; }bW"Z2^nB  
!c;Z<@  
while(top>0){ #LGAvFA*_F  
int j=stack[top--]; ~w&_l57  
int i=stack[top--]; 8: x{  
.%.bIT  
pivotIndex=(i+j)/2; V*uoGWL]+  
pivot=data[pivotIndex]; l;N?*2zm[  
)&Bf%1>  
SortUtil.swap(data,pivotIndex,j); j J}3WJ  
yc#0c[ZQu  
file://partition lji&]^1  
l=i-1; ifA)Ppt<`  
r=j; 8BL ]]gT-I  
do{ lk$@8h$vS  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 9K9{$jN~  
SortUtil.swap(data,l,r); *0K@^Db-  
} ({GN.pC(  
while(l SortUtil.swap(data,l,r); 3X0"</G6  
SortUtil.swap(data,l,j); cTU%=/gbc<  
J FYV@%1~  
if((l-i)>THRESHOLD){ iiWs]5  
stack[++top]=i; \c"{V-#o\  
stack[++top]=l-1; %Km^_JM  
} oVG/[e|c'  
if((j-l)>THRESHOLD){ G(g.~|=EZ  
stack[++top]=l+1; ewOd =%  
stack[++top]=j; Rh[%UNl  
} _y,? Cj=u|  
s/;iZiWK  
} 8f\sG:$  
file://new InsertSort().sort(data); X9J&OQ  
insertSort(data); c v .R`)l  
} *A2D}X3s  
/** (1t b  
* @param data w^_[(9 `  
*/ b5-WK;  
private void insertSort(int[] data) { {Qe 7/ln!  
int temp; VZ#@7t  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); %Sgdhgk1  
} !\)9fOLs  
} 9Y6Ear .W  
} ?89K [D|  
TVkC pO,H  
} l*v6U'J  
TA2?Ia;@xV  
归并排序: t_VF=B^LuR  
0[f8Gb3  
package org.rut.util.algorithm.support; Sk ~( t  
mbij& 0  
import org.rut.util.algorithm.SortUtil; sQ4~oZZ  
)IFzal}o  
/** 9kpCn.rJ  
* @author treeroot *dTI4k  
* @since 2006-2-2 o7qZy |\4S  
* @version 1.0 ai3wSUYJi  
*/ i9QL}d  
public class MergeSort implements SortUtil.Sort{ 5Tl3k=o}  
P?.j wI  
/* (non-Javadoc) lY.{v]i }  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c]u^0X?&  
*/ "@!B"'xg  
public void sort(int[] data) { o 0-3[W'x<  
int[] temp=new int[data.length]; Id<3'ky<N  
mergeSort(data,temp,0,data.length-1); 'S[&-D%(3  
} L~WC9xguDl  
\-Oq/g{j  
private void mergeSort(int[] data,int[] temp,int l,int r){ /3(|P  
int mid=(l+r)/2; Po ,zTz   
if(l==r) return ; X; ~3 U 9  
mergeSort(data,temp,l,mid); y<Z-f.  
mergeSort(data,temp,mid+1,r); rJ@yOed["b  
for(int i=l;i<=r;i++){ q1|! oQ  
temp=data; X-Yy1"6m1  
} THFzC/~Q  
int i1=l; QJsud{ada  
int i2=mid+1; |uT &M`7\{  
for(int cur=l;cur<=r;cur++){ g[#4`Q<.  
if(i1==mid+1) Zx1I&K\Cd  
data[cur]=temp[i2++]; (_9cL,v  
else if(i2>r) nVO|*Bnf)  
data[cur]=temp[i1++]; @CxXkR  
else if(temp[i1] data[cur]=temp[i1++]; 2tEA8F~k  
else v0d<P2ix  
data[cur]=temp[i2++]; AUan^Om  
} -F]0Py8(  
} bG'"l qn  
5bfd8C  
} |t1ij'N  
A.5N<$l  
改进后的归并排序: w b@Zna  
Sh]g]xR  
package org.rut.util.algorithm.support; |X'Pa9u  
Tej&1'G  
import org.rut.util.algorithm.SortUtil; ^2|G0d@.:  
0c pI2  
/** ranlbxp2l  
* @author treeroot k=7+JI"J  
* @since 2006-2-2 "1-|ahW  
* @version 1.0 h=1cD\^|qw  
*/ NIzxSGk|  
public class ImprovedMergeSort implements SortUtil.Sort { 3RW3<n  
HxH.=M8S_  
private static final int THRESHOLD = 10; -UhSy>m  
AXQG  
/* %+1;iuDL  
* (non-Javadoc) _w'N&#  
* b6LwKUl  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jOE~?{8m  
*/ `X=2Ff  
public void sort(int[] data) { _LOV&83O(  
int[] temp=new int[data.length]; bR0z$~  
mergeSort(data,temp,0,data.length-1); R3[H#*gF<  
} -t5DcEAb$  
#Q6.r.3@x  
private void mergeSort(int[] data, int[] temp, int l, int r) { a9w1Z4  
int i, j, k; nVK`H@5fw  
int mid = (l + r) / 2; t!u{sr{j=  
if (l == r) nJ ZQRRa:C  
return; #U=}Pv~wM  
if ((mid - l) >= THRESHOLD) =$^<@-;  
mergeSort(data, temp, l, mid); LHS^[}x^1  
else 6{qI  
insertSort(data, l, mid - l + 1); xpzQ"'be  
if ((r - mid) > THRESHOLD) Hy_}e"  
mergeSort(data, temp, mid + 1, r); WN_i-A1G/h  
else J4xJGO  
insertSort(data, mid + 1, r - mid); uqN:I)>[P  
s-z*Lq*  
for (i = l; i <= mid; i++) { QIcg4\d%s  
temp = data; 9T#JlV  
} EE^ N01<"\  
for (j = 1; j <= r - mid; j++) { 1l~(J:DT  
temp[r - j + 1] = data[j + mid]; Y XBU9T{r  
} (Vvs:h%H  
int a = temp[l]; Ep@NT+VnI  
int b = temp[r]; tR;? o,T  
for (i = l, j = r, k = l; k <= r; k++) { s*XwU  
if (a < b) { b')Lj]%;k  
data[k] = temp[i++]; =,UuQJ,l  
a = temp; l5}b.B^w  
} else { Rzolue 8  
data[k] = temp[j--]; 9qqzCMrI0e  
b = temp[j]; Y?^1=9?6  
} '%D$|)  
} /{j")  
} @`hnp:  
@ZD/y %e  
/** T9c=As_EM  
* @param data n1Y3b~E?E  
* @param l *>ilT5q  
* @param i w^.^XK4v.  
*/ dV5aIj  
private void insertSort(int[] data, int start, int len) { S!u`V3-s  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); Ky qFeR  
} +&T;jad2  
} X~H ~k1  
} 77:s=)   
} TC2gl[  
v7L} I[f  
堆排序: [CfA\-gx<f  
=> PBdW  
package org.rut.util.algorithm.support; T.=du$  
8olR#>  
import org.rut.util.algorithm.SortUtil; }iK_7g`yKa  
pxF<L\L?:  
/** E8:4Z$|c  
* @author treeroot }-e  
* @since 2006-2-2 VHyP@JB  
* @version 1.0 xyoh B#'W  
*/ Gob;dku  
public class HeapSort implements SortUtil.Sort{ Hko(@z  
{U`B|  
/* (non-Javadoc) .Fz5K&E=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f +#  
*/ &|:T+LVv$+  
public void sort(int[] data) { " -Ie  
MaxHeap h=new MaxHeap(); (f5v{S6b(  
h.init(data); e|L$e0  
for(int i=0;i h.remove(); X@ljZ  
System.arraycopy(h.queue,1,data,0,data.length); CQq'x +{F  
} Tz=YSQy$9  
}x[d]fcC  
private static class MaxHeap{ Dm3/i |Y  
3,snx4q (  
void init(int[] data){ pY3N7&m\:  
this.queue=new int[data.length+1]; Ozygr?*X  
for(int i=0;i queue[++size]=data; ~okIiC]#  
fixUp(size); bi fi02  
} S+i .@N.^  
} pvz*(u  
yrDWIU(8;6  
private int size=0; -V'`;zE6  
yqg&dq  
private int[] queue; No\H QQ  
[ imC21U  
public int get() { "4{_amgm&<  
return queue[1]; A~vZ}?*M  
} LE15y>  
,|: a7b]  
public void remove() { &M)S~Hb^  
SortUtil.swap(queue,1,size--); "CEy r0h  
fixDown(1); bw@Dc T&,  
} b}G4eXkuj  
file://fixdown 5-277?  
private void fixDown(int k) { seFug  
int j; 5(/ 5$u   
while ((j = k << 1) <= size) { ;%1ob f 89  
if (j < size %26amp;%26amp; queue[j] j++; Oc;/'d2  
if (queue[k]>queue[j]) file://不用交换 ?kICYtY:_b  
break; pai>6p  
SortUtil.swap(queue,j,k); ." m6zq  
k = j; u}QB-oU  
} Dm@wTt8N(  
} XUD/\MoV  
private void fixUp(int k) { Y$^x.^dT,  
while (k > 1) { kT(}>=]g  
int j = k >> 1; Nk-biD/J  
if (queue[j]>queue[k]) mx#H+:}&r  
break; ]Q\Ogfjp  
SortUtil.swap(queue,j,k); D_6GzgZ  
k = j; :x*8*@kC  
} Co2* -[R  
} Yx_[vLm  
AgsMk  
} )Oq N\  
4#5w^  
} n9;+RhxA  
UarU.~Uqi  
SortUtil: ^n@.  
p}KZ#"Q  
package org.rut.util.algorithm; eSynw$F2N  
Ae,-. xJ  
import org.rut.util.algorithm.support.BubbleSort; &bx;GG\<4  
import org.rut.util.algorithm.support.HeapSort; JM{S49Lx  
import org.rut.util.algorithm.support.ImprovedMergeSort; *G^n<p$"  
import org.rut.util.algorithm.support.ImprovedQuickSort; #@,39!;,:O  
import org.rut.util.algorithm.support.InsertSort; 8Ek<J+& |I  
import org.rut.util.algorithm.support.MergeSort; #e.2m5T  
import org.rut.util.algorithm.support.QuickSort; Na^1dn  
import org.rut.util.algorithm.support.SelectionSort; o~ .[sn5l-  
import org.rut.util.algorithm.support.ShellSort; W{Cc wq  
Q dKxuG  
/** k]<  
* @author treeroot V1KWi ^  
* @since 2006-2-2 NF1e>O:a<  
* @version 1.0 =2#a@D6Bl  
*/ i0uBb%GMT  
public class SortUtil { u93=>S  
public final static int INSERT = 1; TB] %?L:  
public final static int BUBBLE = 2; 0f vQPs!O  
public final static int SELECTION = 3; 4#uWj ?u  
public final static int SHELL = 4; PsDks3cG  
public final static int QUICK = 5; ?)#dP8n  
public final static int IMPROVED_QUICK = 6; (Rvke!"B  
public final static int MERGE = 7; Wh%qvV6]  
public final static int IMPROVED_MERGE = 8; SGW2'  
public final static int HEAP = 9; {& G7 Xa  
w,NK]<dU@  
public static void sort(int[] data) { /"?y @;Y~  
sort(data, IMPROVED_QUICK); omM*h{z$$  
} buo_H@@p{s  
private static String[] name={ rt%.IQdY  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" *b?C%a9  
}; uROt h_/  
tRYMK+  
private static Sort[] impl=new Sort[]{ >9W ;u`  
new InsertSort(), . m_y5J  
new BubbleSort(), L0SeG:  
new SelectionSort(), &I.UEF2,  
new ShellSort(), mt7}1s,i[  
new QuickSort(), /%Bc*k=ox  
new ImprovedQuickSort(), sk!v!^\_r  
new MergeSort(), Wy%q9x]}  
new ImprovedMergeSort(), )t{oyBT  
new HeapSort() chsjY]b  
}; 2Z6#3~  
lIO.LF3  
public static String toString(int algorithm){ CGIcuHp  
return name[algorithm-1]; $]4^ENkI  
} ll {jE  
e#K =SV!H  
public static void sort(int[] data, int algorithm) { H,qIHQW#  
impl[algorithm-1].sort(data); _`WbR&d2Id  
} * B,D#;6  
`G\uTCpk  
public static interface Sort { 9|dgmEd  
public void sort(int[] data); PYqx&om  
} 4VPL -":6  
@`aR*B  
public static void swap(int[] data, int i, int j) { cu|gM[  
int temp = data; B:5( sK  
data = data[j]; w!)B\l^+c  
data[j] = temp; 6\)61o_1|  
} zF%CFqQ  
} x^}kG[s  
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 或 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:
3+5=?,请输入中文答案:八 正确答案:八