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
  • 6271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。 .Vvx,>>D  
插入排序: ~U&AI1t+J  
d|Lj~x|  
package org.rut.util.algorithm.support; ^o&. fQ*  
12gU{VD  
import org.rut.util.algorithm.SortUtil;  S9FE  
/** .Rs^YZF  
* @author treeroot LBDjIpR6  
* @since 2006-2-2 _ *Pf  
* @version 1.0 +Q"4Migbe@  
*/ *#+An<iT ;  
public class InsertSort implements SortUtil.Sort{ "'?>fe\qG  
^9:Z7 >Z  
/* (non-Javadoc) 59;KQ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pB0 \\wR  
*/ 2.%ITB  
public void sort(int[] data) { }y gD3:vN7  
int temp; tJ$_lk ~6q  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); PtiOz :zV  
} >7DhTM-A  
} 5vnrA'BhBU  
} 4zFW-yy  
@*KZ}i@._  
} 5 #E`=C%  
&`2)V;t  
冒泡排序: 8$Y9ORs4  
$X,D(  
package org.rut.util.algorithm.support; hf&9uHN%7m  
f x+/C8GK  
import org.rut.util.algorithm.SortUtil; iSs:oH3l  
ri-b=|h2j  
/** 1\I}2;  
* @author treeroot q9s=~d7  
* @since 2006-2-2 Jij*x>K>y  
* @version 1.0 ;vjOUn[E  
*/ V1B5w_^>h'  
public class BubbleSort implements SortUtil.Sort{ p9{mS7R9T  
>(t6.=  
/* (non-Javadoc) 89(Q1R ?:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ds[|   
*/ d5:c^`  
public void sort(int[] data) { 9V*qQS5<p  
int temp; /hyN;.hpOO  
for(int i=0;i for(int j=data.length-1;j>i;j--){ *VxgARIL  
if(data[j] SortUtil.swap(data,j,j-1); i?^L/b`H  
} =U?dbSf1*  
} z*% q@]ym  
} smo~7;  
} B \2 SH%\  
onxLyx|A  
} oe-\ozJ0  
0oIe> r  
选择排序: 4 "'~NvO  
&6nWzF  
package org.rut.util.algorithm.support; ~oY^;/ j  
\z(gqkc 6  
import org.rut.util.algorithm.SortUtil; ?^\|-Gr  
sD#.Oq4&]y  
/** oW6XF-yM  
* @author treeroot 40m-ch6Q  
* @since 2006-2-2 P71Lqy)5}A  
* @version 1.0 -PR N:'T  
*/ WNrk}LFof  
public class SelectionSort implements SortUtil.Sort { C!bUI8x z  
E+;7>ja  
/* </*6wpN  
* (non-Javadoc) h2fNuu"  
* 7WZ+T"O{I  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ePo}y])2  
*/ gc$l^`+M  
public void sort(int[] data) { k~nBiV  
int temp; k~w*W X'  
for (int i = 0; i < data.length; i++) { ]~3V}z,T*  
int lowIndex = i; -6B4sZpzD  
for (int j = data.length - 1; j > i; j--) { 9p(. A$  
if (data[j] < data[lowIndex]) { %._.~V  
lowIndex = j; H"WprHe  
} hkQ"OsU  
} XlR@pr6tw  
SortUtil.swap(data,i,lowIndex); tK\~A,=  
} E hMNap}5"  
} '/s)%bc  
Jdj4\j u  
} s!$7(Q86R  
#S"nF@   
Shell排序: f._ua>v,f  
_xhax+,! ~  
package org.rut.util.algorithm.support; {3aua:q  
-ZLJeY L  
import org.rut.util.algorithm.SortUtil; #KZBsa@p  
}&D32\  
/** U-M>=3|N  
* @author treeroot +52{-a,>  
* @since 2006-2-2 -nV9:opD  
* @version 1.0 {_v#~595  
*/ * 0=j?~&  
public class ShellSort implements SortUtil.Sort{ *J`O"a  
P~X2^bw  
/* (non-Javadoc) Z(CkZll  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "=MeM)K  
*/ e$rZ5X  
public void sort(int[] data) { b d!Y\OD  
for(int i=data.length/2;i>2;i/=2){ },-H"Qs  
for(int j=0;j insertSort(data,j,i); Pe3o;mx  
} }@d@3  
} hp|YE'uYT  
insertSort(data,0,1); 2<}%kQ`  
} L ~N460  
h <<v^+m  
/** IW] rb/H  
* @param data aK^q_ghh[  
* @param j "3Y0`&:D  
* @param i ey$&;1x#5  
*/ 6.yu-xm  
private void insertSort(int[] data, int start, int inc) { z<' u1l3  
int temp; o?Oc7 $+u  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 7 HYwLG:\~  
} @f3E`8  
} :Zw2'IV  
} AH~E)S  
R.<g3"Lm>  
}  rjnrju+  
FGq [ \B  
快速排序: SXP]%{@ R/  
am6L8N  
package org.rut.util.algorithm.support; Uw<nxD/+  
U|R_OLWAg  
import org.rut.util.algorithm.SortUtil; S{T >}'y  
8Z=R)asGS  
/** l+0oS'`V*L  
* @author treeroot BnF^u5kv%  
* @since 2006-2-2 8zW2zkv2|#  
* @version 1.0 Nu)NqFG,  
*/ =Nr-iae#  
public class QuickSort implements SortUtil.Sort{ g *+>H1}  
[v!f<zSQK  
/* (non-Javadoc) ;#< 0<  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 19%i mf  
*/ \1M4Dl5!  
public void sort(int[] data) {  _;\_l  
quickSort(data,0,data.length-1); M/`lM$98:  
} ysnx3(+|  
private void quickSort(int[] data,int i,int j){ ('+d.F[109  
int pivotIndex=(i+j)/2; vKAN@HSYr  
file://swap  K_}K@'  
SortUtil.swap(data,pivotIndex,j); >Y@H4LF;1x  
nKj7.,>;:<  
int k=partition(data,i-1,j,data[j]); Q^^niVz  
SortUtil.swap(data,k,j); tw)mepwB  
if((k-i)>1) quickSort(data,i,k-1); ^E>3|du]O  
if((j-k)>1) quickSort(data,k+1,j); -X6PRE5a2  
5~DJWi,  
} Xne1gms  
/** dft!lBN  
* @param data )J(6xy  
* @param i S~G ]~gt  
* @param j q{x8_E!L  
* @return !U Ln7\@  
*/ :e+jU5;]3  
private int partition(int[] data, int l, int r,int pivot) { <<O$ G7c  
do{ *wjrR1#81x  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); -M#Wt`6A  
SortUtil.swap(data,l,r); $M:*T.3  
} C\hM =%  
while(l SortUtil.swap(data,l,r); TIg3` Fon  
return l; B^ }yo65I  
} {R{=+2K!|k  
_Y m2/3!  
} ]A_`0"m.U  
j3ls3H&  
改进后的快速排序: 0jWVp- y  
gbD KE{  
package org.rut.util.algorithm.support; 2y1Sne=<Kb  
HTTC TR  
import org.rut.util.algorithm.SortUtil; % |L=l{g  
AFt s(  
/** %E;'ln4h&,  
* @author treeroot _7y[B&g[r  
* @since 2006-2-2 yEy6]f+>+  
* @version 1.0 \o3gKoL%  
*/ M X]n&  
public class ImprovedQuickSort implements SortUtil.Sort { K wVbbC3  
?:9"X$XR  
private static int MAX_STACK_SIZE=4096; 8zq=N#x  
private static int THRESHOLD=10; [{/jI\?v  
/* (non-Javadoc) $<[79al#  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4s oJ.j8  
*/ z`b,h\  
public void sort(int[] data) { % A0/1{(  
int[] stack=new int[MAX_STACK_SIZE]; ql~J8G9  
u_Z+;{]Pj  
int top=-1; j B{8u&kz)  
int pivot; >=w)x,0yX  
int pivotIndex,l,r; 2MK-5 Kg  
dlnX_+((KC  
stack[++top]=0; dqcL]e  
stack[++top]=data.length-1; @>7%qS  
`">=  
while(top>0){ V0Hj8}l;M  
int j=stack[top--]; &BSn?  
int i=stack[top--]; iH'p>s5L  
X"*5+* z]  
pivotIndex=(i+j)/2; AbOf6%Env  
pivot=data[pivotIndex]; RPbZ(.  
+aAc9'k   
SortUtil.swap(data,pivotIndex,j); "$vRMpW:  
0<*<$U  
file://partition Vi|#@tC'  
l=i-1; {Y1Ck5  
r=j; cm+P]8o%{  
do{ &#i"=\d  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); -$g#I  
SortUtil.swap(data,l,r); r: :b  
} 62NsJ<#>  
while(l SortUtil.swap(data,l,r); PQE =D0  
SortUtil.swap(data,l,j); ]/{)bpu  
q1ma%eiN  
if((l-i)>THRESHOLD){ Zj Z^_X3  
stack[++top]=i; iU:cW=W|M\  
stack[++top]=l-1; >8[Z.fX  
} $<OD31T  
if((j-l)>THRESHOLD){ y>ktcuML  
stack[++top]=l+1; eszG0Wu  
stack[++top]=j; y<.5xq5_3  
} ]I6  J7A[  
&xExyz~`  
} u$`a7Lp,n  
file://new InsertSort().sort(data); lk=<A"^S  
insertSort(data); 8xMX  
} vw@S>G lGg  
/** NCD04U5y  
* @param data dgP3@`YS  
*/ #p{4^  
private void insertSort(int[] data) { c[s4EUG  
int temp; (w zQ2Dk  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); #rg6,.I)<  
} {\\T gs  
} U%/+B]6jP  
} -ze J#B)C  
R^e'}+Z  
} H6gSO(U  
&,)&%Sg[  
归并排序: IvNT6]6 P  
7PF%76TO  
package org.rut.util.algorithm.support; 51.%;aY~z  
[.}oyz; }N  
import org.rut.util.algorithm.SortUtil; ;O #>Y  
T6kdS]4-  
/** ]K%!@O!  
* @author treeroot ]JR +ayk7  
* @since 2006-2-2 M'l ;:  
* @version 1.0 OB}Ib]  
*/ yF/jFn  
public class MergeSort implements SortUtil.Sort{ aQI(Y^&%3  
BLJj(-  
/* (non-Javadoc) wS3'?PRX  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a09<!0Rp  
*/ y~HP>~Oh  
public void sort(int[] data) { #Rr%:\*  
int[] temp=new int[data.length]; `wU!`\  
mergeSort(data,temp,0,data.length-1); XB5DPx  
} \.}c9*)  
9MqGIOQ${j  
private void mergeSort(int[] data,int[] temp,int l,int r){ NyuQMU  
int mid=(l+r)/2; 7>*vI7O0l  
if(l==r) return ; Vf1^4 t  
mergeSort(data,temp,l,mid); Dum9lj  
mergeSort(data,temp,mid+1,r); k==h|\|  
for(int i=l;i<=r;i++){ AwF:Iu^3n  
temp=data; 8Cv?Z.x5  
} {(?4!rh  
int i1=l; pmYHUj #  
int i2=mid+1; !Xw5<J3L-  
for(int cur=l;cur<=r;cur++){ (C)p9-,  
if(i1==mid+1) |sZHUf_  
data[cur]=temp[i2++]; BfiD9ka-z  
else if(i2>r) ~7Ux@Sx;  
data[cur]=temp[i1++]; ;xn0;V'=  
else if(temp[i1] data[cur]=temp[i1++]; 9-m=*|p  
else Qe(:|q _  
data[cur]=temp[i2++]; ku M$UYTTX  
} ,MIV=*  
} 7Fsay+a  
@9|hMo  
} PeEj&4k  
|! "eWTJ  
改进后的归并排序: 6D_D';o  
o3}3p]S\  
package org.rut.util.algorithm.support; % %UE+u @J  
Y\'}a+:@Ph  
import org.rut.util.algorithm.SortUtil; +x}<IS8  
?|Zx!z ($  
/** bi;1s'Y<D  
* @author treeroot g< .qUBPKX  
* @since 2006-2-2 13/]DF,S"^  
* @version 1.0 P{^6v=8)  
*/ C+&l< fM&  
public class ImprovedMergeSort implements SortUtil.Sort { Eu04e N  
seeB S/%  
private static final int THRESHOLD = 10; ZqO^f*F>h  
18:%~>.!  
/* 0+b1vhQ  
* (non-Javadoc) FHI ;)wn=  
* ENY+^7  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) cj5+N M"  
*/ ]5:8Z@  
public void sort(int[] data) { Pj% |\kbNs  
int[] temp=new int[data.length]; o2\8OxcA  
mergeSort(data,temp,0,data.length-1); R@rBEW&  
} d m%8K6|  
%H"47ZFxAs  
private void mergeSort(int[] data, int[] temp, int l, int r) { sCHJ&>m5-  
int i, j, k; "C`Ub  
int mid = (l + r) / 2; [}]Q?*_  
if (l == r) GWip-wI  
return; KKf   
if ((mid - l) >= THRESHOLD) P7/X|M z  
mergeSort(data, temp, l, mid); FaJ&GOM,  
else M\Kx'N  
insertSort(data, l, mid - l + 1); E-g_".agO  
if ((r - mid) > THRESHOLD) `*KHS A  
mergeSort(data, temp, mid + 1, r); jRV/A!4  
else v|2T%y_ u  
insertSort(data, mid + 1, r - mid); N ZSSg2TX#  
=w0R$&b&  
for (i = l; i <= mid; i++) { :*\Pn!r  
temp = data; bA->{OPkT  
} 45>?o  
for (j = 1; j <= r - mid; j++) { Yg1  X  
temp[r - j + 1] = data[j + mid]; !g2+w$YVa  
} sD wqH.L  
int a = temp[l]; lHX72s|V  
int b = temp[r]; 8}UI bF  
for (i = l, j = r, k = l; k <= r; k++) { b|W=pSTY  
if (a < b) { $E.I84UfX  
data[k] = temp[i++]; N]sAji*  
a = temp; ?FcAXA/J{  
} else { icK/],  
data[k] = temp[j--]; "'\$ g[k  
b = temp[j]; q'8 2qY  
} HHsmLo c4  
} P";'jVcR  
}  0lR5<^B  
~e@z;]CiY  
/** TRq6NB  
* @param data "9e\c;a  
* @param l v_-dx  
* @param i c0u^zH<  
*/ DR<9#RRD  
private void insertSort(int[] data, int start, int len) { G'A R`"F  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); sON|w86B  
} b SU~XGPB  
} =C.$ UX  
} 7Jho}5J  
} ~Jz6O U*z  
[hj6N*4y  
堆排序: S^\Vgi(  
kW&TJP+5*  
package org.rut.util.algorithm.support; [IhYh<i  
TWFr 4-  
import org.rut.util.algorithm.SortUtil; X}\:_/  
3/n5#&c\4  
/** RrQJ/ts7}  
* @author treeroot 9-*uPK]m9  
* @since 2006-2-2 omBoo5e  
* @version 1.0 s!7y  
*/ k+pr \d~  
public class HeapSort implements SortUtil.Sort{ p= } Nn(  
65Yv4pNL  
/* (non-Javadoc) Q$@I"V&G.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *bA.zmzM  
*/ "1 M[5\Ax  
public void sort(int[] data) { TbW38\>.R  
MaxHeap h=new MaxHeap(); jtc]>]6i  
h.init(data); NHZz _a=  
for(int i=0;i h.remove(); 9mTJ|sN:e  
System.arraycopy(h.queue,1,data,0,data.length); hZ  
} ;MdlwQ$`  
_zi|  
private static class MaxHeap{ WEi2=3dV  
@2 fg~2M1  
void init(int[] data){ E09 :E  
this.queue=new int[data.length+1]; iAIuxO  
for(int i=0;i queue[++size]=data; G*P#]eO  
fixUp(size); ^3L0w}#  
} 7E~;xn;  
} fS78>*K  
wi6 ~}~%  
private int size=0; j+  0I-p  
VS8Rx.?  
private int[] queue; ]-/VHh  
?2Py_gkf  
public int get() { -C?ZB}`   
return queue[1]; L0WN\|D  
} b!5~7Ub.No  
XuM'_FN`A<  
public void remove() { 2!=f hN  
SortUtil.swap(queue,1,size--); *YuF0Yt  
fixDown(1); 9m~p0ILh  
} *wB1,U{  
file://fixdown QE`bSI  
private void fixDown(int k) { e h?zNu2=  
int j; q'Tf,a  
while ((j = k << 1) <= size) { ExL0?FemWV  
if (j < size %26amp;%26amp; queue[j] j++; L>4"(  
if (queue[k]>queue[j]) file://不用交换 -4{<=y?"a  
break; LuvY<~u  
SortUtil.swap(queue,j,k); lp%pbx43s  
k = j; .jjG(L  
} H ]Z$OpI  
} tG22#F`  
private void fixUp(int k) { t=W}SH  
while (k > 1) { mSl.mi(JiZ  
int j = k >> 1; K^<BW(s  
if (queue[j]>queue[k]) +}os&[S  
break; UhQj Qaa~  
SortUtil.swap(queue,j,k); 0[?Xxk}s0  
k = j; ?QdWrE_  
} PP33i@G  
} 57  
[ ~c|mOk  
} a'yK~;+_9  
ML56k~"BL  
} dk4CpN  
VY=jc~c]v  
SortUtil: |"CZT#  
5(Q%XQV*P  
package org.rut.util.algorithm; y,,dCca  
PmEsN&YP]  
import org.rut.util.algorithm.support.BubbleSort; 4yA+ h2  
import org.rut.util.algorithm.support.HeapSort; 0rs"o-s<  
import org.rut.util.algorithm.support.ImprovedMergeSort; ;RPx^X~  
import org.rut.util.algorithm.support.ImprovedQuickSort; j/c&xv 7=  
import org.rut.util.algorithm.support.InsertSort; Sp]0c[37R  
import org.rut.util.algorithm.support.MergeSort; eiaFaYe\  
import org.rut.util.algorithm.support.QuickSort; XW)lDiJl  
import org.rut.util.algorithm.support.SelectionSort; o~y;j75{.*  
import org.rut.util.algorithm.support.ShellSort; c2 C8g1n  
2B&3TLO  
/** 4*cEag   
* @author treeroot w;:*P  
* @since 2006-2-2 }-2 2XYh  
* @version 1.0 `% "\@<  
*/ #r~# I}U  
public class SortUtil { YWO)HsjP  
public final static int INSERT = 1; bI9~jWgGp  
public final static int BUBBLE = 2; .:%0E`E  
public final static int SELECTION = 3; Zaf:fsj>  
public final static int SHELL = 4; jZkcBIK2  
public final static int QUICK = 5; yEoF4bt  
public final static int IMPROVED_QUICK = 6; Ww+IWW@  
public final static int MERGE = 7; Ad9}9!<  
public final static int IMPROVED_MERGE = 8; x,pjpx  
public final static int HEAP = 9; l'E*=Rn  
paE[rS\  
public static void sort(int[] data) { 3J|F?M"N7  
sort(data, IMPROVED_QUICK); }?_?V&K|  
} 4-y :/8  
private static String[] name={ By",rD- r  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" :v&$o'Sak  
}; |a`Sc %  
u$Jz~:=,  
private static Sort[] impl=new Sort[]{ .|>3k'<l  
new InsertSort(), ep)n_!$OH"  
new BubbleSort(), `V)8 QRN(  
new SelectionSort(), +`3)oPV)  
new ShellSort(), ' ;FnIZ  
new QuickSort(), |tMWCA  
new ImprovedQuickSort(), E`usknf>l  
new MergeSort(), Hc$O{]sq  
new ImprovedMergeSort(), a;qryUyG  
new HeapSort() ~#[yJNYQ  
}; .K2qXw"S#  
n&qg;TT  
public static String toString(int algorithm){ ;LPfXpR  
return name[algorithm-1]; ^Hnb }L  
} &P}_bx  
UapC"XYJ  
public static void sort(int[] data, int algorithm) { aU "8{  
impl[algorithm-1].sort(data); li'YDtMKCY  
} :B5Fdp3  
RVA (Q[ ;  
public static interface Sort { Val|n*%  
public void sort(int[] data); :W.(S6O(  
} p\tm:QWD;  
kY|utoAP  
public static void swap(int[] data, int i, int j) { r Iu$pZO  
int temp = data; S\YTX%Xm}  
data = data[j]; gw3K+P  
data[j] = temp; S.94 edQ  
} K6/Q}W   
} CR`Q#Yi  
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
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