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
  • 6546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。 yXXvs'$R \  
插入排序: Ft$^x-d  
lDlj+fK  
package org.rut.util.algorithm.support; dQ`:8S K  
HNFhH0+^  
import org.rut.util.algorithm.SortUtil; 94+/wzWvi  
/** K{N%kk%F  
* @author treeroot f^u^-l  
* @since 2006-2-2 %GS\1 Q%  
* @version 1.0 E\_W  
*/ ]xI?,('_m  
public class InsertSort implements SortUtil.Sort{ &!6DC5  
[]r T? -  
/* (non-Javadoc) 6I5o2i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H):-! ?:  
*/ n3*UgNg%fK  
public void sort(int[] data) { 2@4x"F]U;  
int temp; e"PMvQ  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ,b:n1  
} n+X1AOE[L  
} 2DUr7r M  
} [qW<D/@  
^J0zXe -d  
} k3C"  
T6,V  
冒泡排序: 6TY){P w  
8i[".9}G\  
package org.rut.util.algorithm.support; )&XnM69~b  
=zz+<!!  
import org.rut.util.algorithm.SortUtil; @uoT{E[  
~c!Rx'  
/** u >81dO]H  
* @author treeroot .r7D )xNa@  
* @since 2006-2-2 9^(HXH_f  
* @version 1.0 >6XDX=JVI  
*/ " \`BPN  
public class BubbleSort implements SortUtil.Sort{ BSOjyy1f  
&|s+KP|d  
/* (non-Javadoc) )\D2\1e(c  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) l_bL,-|E8  
*/ FPvuzBJ  
public void sort(int[] data) { AS`2=w  
int temp; \>4v?\8o  
for(int i=0;i for(int j=data.length-1;j>i;j--){ BXNI(7xi  
if(data[j] SortUtil.swap(data,j,j-1); bd,Uz% o_  
} nt drXg  
} p(~Y" H  
} t'dHCp}  
} Tt{U"EFO  
G(:s-x ig6  
} f3/SO+Me}  
;R/k2^uF  
选择排序: :!(YEF#}  
P/C&R-{')  
package org.rut.util.algorithm.support; TNyK@~#m  
@>M8Pe  
import org.rut.util.algorithm.SortUtil; N-X VRuv  
g@<sU0B  
/** VV?]U$  
* @author treeroot rn5"o8|  
* @since 2006-2-2 os}b?I*K  
* @version 1.0 $dlnmNP+  
*/ UedvA9$&;  
public class SelectionSort implements SortUtil.Sort { BjH~Ml2  
Y8D7<V~Md  
/* N8,EI^W8Z  
* (non-Javadoc) 1y},9ym  
* kyy0&L  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) O3_D~O ."  
*/ hZp=BM"bJ  
public void sort(int[] data) { B*- ToXQQr  
int temp; xIS\4]F?r  
for (int i = 0; i < data.length; i++) { 6.7`0v?,n  
int lowIndex = i; "V*kOb&'*Z  
for (int j = data.length - 1; j > i; j--) { I(z>)S'7r  
if (data[j] < data[lowIndex]) { JN{<oxI  
lowIndex = j; M3DxapG  
} B.]qrS|  
} Xy[4f=X}z  
SortUtil.swap(data,i,lowIndex); &_< VZS  
} XD;15a  
} >E//pr)_Km  
RnMBGxa  
} k)N2 +/  
?R|fS*e2EB  
Shell排序: @?<N +qdH>  
:SpG&\+  
package org.rut.util.algorithm.support; 3S[w'  
XX]5T`D  
import org.rut.util.algorithm.SortUtil; r!{w93rPX  
z5x ,fQw6O  
/** pieU|?fQ  
* @author treeroot qR [}EX&3  
* @since 2006-2-2 /2g)Z!&+L  
* @version 1.0 3v9gb,)y\  
*/ 3R)cbwL  
public class ShellSort implements SortUtil.Sort{ r[.zLXgK  
uznoyj6g  
/* (non-Javadoc) ~[ d=s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5;3c<  
*/ OoAr%  
public void sort(int[] data) { zCKy`u .  
for(int i=data.length/2;i>2;i/=2){ 6Nfof  
for(int j=0;j insertSort(data,j,i); MZUF! B  
} 09}f\/  
} hRuo,FS#:  
insertSort(data,0,1); GW>7R6i  
} xZ9}8*Q&:  
bR>o!(M'Z\  
/** $I}Hk^X  
* @param data 9#Aipu\  
* @param j ^DW#  
* @param i !wLH&X$XT  
*/ %nDPM? aO  
private void insertSort(int[] data, int start, int inc) { ?)Czl4J  
int temp; [a>JG8[ ,t  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 2fj0 I  
} f>\bUmk(  
} ^*cMry  
} 3PvZ_!G  
M5cOz|j/*R  
} [6,]9|~  
fG8}=xH_&  
快速排序: %# Wg^l '  
AhbT/  
package org.rut.util.algorithm.support; 1WUFk?p  
\J,- <wF  
import org.rut.util.algorithm.SortUtil; 6mI_Q2  
&J6o$i  
/** F(KH-  
* @author treeroot xu%! b0  
* @since 2006-2-2 s{"`=dKT  
* @version 1.0 0TuOY%+  
*/ XvA0nEi  
public class QuickSort implements SortUtil.Sort{ g9([3pV,  
-~<q,p"e  
/* (non-Javadoc) fncwe ';?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) PNxVW  
*/ +c]N]?k&  
public void sort(int[] data) { s_ GK;;  
quickSort(data,0,data.length-1); zCGmn& *M  
} wQdW lon  
private void quickSort(int[] data,int i,int j){ Cdt,//xrz  
int pivotIndex=(i+j)/2; Zeme`/aBb  
file://swap skR, M=F~  
SortUtil.swap(data,pivotIndex,j); Lilk8|?#W  
/v bO/Mr  
int k=partition(data,i-1,j,data[j]); uwH)/BW)[  
SortUtil.swap(data,k,j); F)E7(Un`8  
if((k-i)>1) quickSort(data,i,k-1); 7uv/@(J"$  
if((j-k)>1) quickSort(data,k+1,j); ?G>5 D`V  
PO%yWns30o  
} XC$+ `?  
/** * 0&i'0>  
* @param data 1VjeP *  
* @param i zNsL^;uT  
* @param j 3'sWlhf;  
* @return OO !S w  
*/ D25gg  
private int partition(int[] data, int l, int r,int pivot) { 3f:1D=f  
do{ 'a-5 U TT  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Zm; +Ku>  
SortUtil.swap(data,l,r);  ,3@15j  
} [#Nx>RY  
while(l SortUtil.swap(data,l,r); MR)KLM0  
return l; o$blPTN  
} g]iy-,e  
,],JI|Rl8c  
} }d~FTre  
vq0M[Vy  
改进后的快速排序: 3ciVjH>i  
QnP?;  
package org.rut.util.algorithm.support; #Lxj )  
#Rm=Em}d  
import org.rut.util.algorithm.SortUtil; @'<j!CqQ o  
h[`Op#^x3  
/** <k-@R!K~JC  
* @author treeroot 7]. IT(  
* @since 2006-2-2 xZ @O"*{  
* @version 1.0 aji~brq  
*/ WlQ&Yau  
public class ImprovedQuickSort implements SortUtil.Sort { xwH|ryfs,Z  
{u_k\m[Y  
private static int MAX_STACK_SIZE=4096; FUqhSW  
private static int THRESHOLD=10; ]g-qWSKU  
/* (non-Javadoc) f\F_?s)_y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) E=1/  
*/ L%s4snE  
public void sort(int[] data) { :{N3o:  
int[] stack=new int[MAX_STACK_SIZE]; ! ?U^+)^$  
HH~  du  
int top=-1; Uo[5V|>X6  
int pivot; L^al1T  
int pivotIndex,l,r; @8M2'R\  
UVBw;V  
stack[++top]=0; O->(9k<  
stack[++top]=data.length-1; *6x^w%=A  
b5 C}K  
while(top>0){ 5wFS.!xD  
int j=stack[top--]; yE|} r  
int i=stack[top--]; !lN a`  
HxqV[|}0u  
pivotIndex=(i+j)/2; teS0F  
pivot=data[pivotIndex]; wR<QeH'V  
L z>{FOR  
SortUtil.swap(data,pivotIndex,j); ~S=fMv^BR  
BM$tywC  
file://partition -^xKG'uth  
l=i-1; JX@6Sg<  
r=j; ,;e-37^0l  
do{ Pc; 14M  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); tG ^?fc  
SortUtil.swap(data,l,r); K#C56k q&  
} TYS\:ZdXF  
while(l SortUtil.swap(data,l,r);  H[!Q  
SortUtil.swap(data,l,j); b= ec?n #7  
AFB 7s z  
if((l-i)>THRESHOLD){ U W)&Eky  
stack[++top]=i; |e; z"-3  
stack[++top]=l-1; GGQ(|?w  
} !2M[  
if((j-l)>THRESHOLD){ /R$x-7t)^(  
stack[++top]=l+1; Ft8h=  
stack[++top]=j; {2*l :'  
} otH[?c?BT  
)7%]<2V%  
} rbZ6V :  
file://new InsertSort().sort(data); QRh4f\fY  
insertSort(data); U <$xp  
} X%1.mTU~K  
/** ;OCI.S8  
* @param data -j=&J8Za  
*/ R^kv!x;h  
private void insertSort(int[] data) { qg:I+"u  
int temp; Y~SlipY_  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Qg$Nj=Cw  
} %oKqK >S)  
} }vA nP]!A5  
} MkGq%AE`Y  
&vvx"  
} @ZPTf>J}  
ot<o&  
归并排序: Zy3&Zt  
~dr1Qi#j?  
package org.rut.util.algorithm.support; $D\l%y/C  
u#,'ys  
import org.rut.util.algorithm.SortUtil; p[cL# fBz  
n:."ZBtY*  
/** Zt0%E <C{  
* @author treeroot GE+csnA2  
* @since 2006-2-2 qFChZ+3>  
* @version 1.0 <$2zr4  
*/ zd4y5/aoS  
public class MergeSort implements SortUtil.Sort{ 4 Wd5Goe:  
6|qvo+%  
/* (non-Javadoc) +ENW=N  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9<c4y4#y  
*/ v4~Xv5|w^F  
public void sort(int[] data) { JwVC?m).  
int[] temp=new int[data.length]; ZboJszNb;  
mergeSort(data,temp,0,data.length-1); D % ,yA  
} >6834e  
ER0#$yFpM  
private void mergeSort(int[] data,int[] temp,int l,int r){ W@C tFU9  
int mid=(l+r)/2; R:^?6f<Z}  
if(l==r) return ; Vy~$%H94  
mergeSort(data,temp,l,mid); cP=mJ1  
mergeSort(data,temp,mid+1,r); $uB(@Ft.  
for(int i=l;i<=r;i++){ nJH%pBc  
temp=data; l:,UN07s  
} U (7P X`1  
int i1=l; ,O{ 5   
int i2=mid+1; A0u:Fm{E  
for(int cur=l;cur<=r;cur++){ O t<%gj;^  
if(i1==mid+1) A"VXs1>_^  
data[cur]=temp[i2++]; L([>yQZ  
else if(i2>r) ''Ec-b6Q-  
data[cur]=temp[i1++]; svjFy/T(lL  
else if(temp[i1] data[cur]=temp[i1++]; EZRZ)h  
else 1)Bi>X  
data[cur]=temp[i2++]; E9-'!I!  
} (k.7q~:  
} =8_TOvSJ4p  
Y!$ z7K  
} ]3jH^7[?  
I;:_25WGC  
改进后的归并排序: j&GKpt  
1A.\Ao  
package org.rut.util.algorithm.support; jk}PucV  
5D*V%v  
import org.rut.util.algorithm.SortUtil; 9GaER+d|  
j=>G fo  
/** Vs"Q-?  
* @author treeroot ofCP>Z-  
* @since 2006-2-2 UF&Wgj [  
* @version 1.0 /2cOZ1G;  
*/ |XG7UH  
public class ImprovedMergeSort implements SortUtil.Sort { dsuW4 ^ l  
S @($c'  
private static final int THRESHOLD = 10; `2  
TY?io@  
/* imQNfNm  
* (non-Javadoc) uB5o Ghu-  
* d^^>3L!h  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) CFxs`C^  
*/ ohk =7d.'  
public void sort(int[] data) { U6PUt'Kk@  
int[] temp=new int[data.length]; ]!w52kF7  
mergeSort(data,temp,0,data.length-1); 7IH{5o\e  
} 8!Kfe  
!/j|\_O  
private void mergeSort(int[] data, int[] temp, int l, int r) { Kn|dnq|G  
int i, j, k; 8+F2 !IM  
int mid = (l + r) / 2; 0AenDm@9  
if (l == r) e(A&VIp  
return; '9XwUQx  
if ((mid - l) >= THRESHOLD) ;ecF~-oku  
mergeSort(data, temp, l, mid); n\U6oJN  
else j)Gr@F>  
insertSort(data, l, mid - l + 1); C?k4<B7V  
if ((r - mid) > THRESHOLD) ,0xN#&?Ohh  
mergeSort(data, temp, mid + 1, r); (fS4qz:&l  
else S)?B  I  
insertSort(data, mid + 1, r - mid); T^t`H p  
#D8)rs.9  
for (i = l; i <= mid; i++) { `h#JDcT;a  
temp = data; akoILX~u  
} =6:Iv"<  
for (j = 1; j <= r - mid; j++) { yMxS'j1  
temp[r - j + 1] = data[j + mid]; $2 0*&4y^  
} 0)#I5tEre  
int a = temp[l]; ?##GY;#  
int b = temp[r]; e2v,#3Q\  
for (i = l, j = r, k = l; k <= r; k++) { O.!?O(  
if (a < b) { xgVt0=q  
data[k] = temp[i++]; +dRTHz  
a = temp; xhv)rhu@  
} else { j*nCIxF  
data[k] = temp[j--]; ~QXNOtVsN  
b = temp[j]; HU'}c*d]  
} Z1zC@z4sUj  
} ;(A'XA4 6N  
} aqlYB7  
F6 Ixu_s  
/** va)\uXW.N  
* @param data F-t-d1w6  
* @param l gi8kYHldH  
* @param i @: NrC76  
*/ {^v50d  
private void insertSort(int[] data, int start, int len) { rmhB!Lo  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 'ga@=;Wj  
} cuHs`{u@P  
} U i;o/Z3  
} Q"\[ICu!,  
} H$ v4N8D8I  
G{:L^2>  
堆排序: 9r!%PjNvE  
=i.[|g"  
package org.rut.util.algorithm.support; ) ":~`Z*@  
;2$^=:8  
import org.rut.util.algorithm.SortUtil; FD8aO?wvg  
umj7-fh  
/** hFKYRZtP.8  
* @author treeroot {3?g8e]zr  
* @since 2006-2-2 6SpkeXL  
* @version 1.0 }b44^iL$9y  
*/ /OZF3Pft  
public class HeapSort implements SortUtil.Sort{ 2'++G[z  
VF4F7'  
/* (non-Javadoc) a/_ `1  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) dJ$}]   
*/ BPW:W }  
public void sort(int[] data) { 1iz\8R:0  
MaxHeap h=new MaxHeap(); L3&NGcd  
h.init(data); ";Lpf]<  
for(int i=0;i h.remove(); atY m.qb  
System.arraycopy(h.queue,1,data,0,data.length); t &*$@0A  
}  B} :[~R'  
K }r%OOn0  
private static class MaxHeap{ mI l_ [  
H>VuUH|  
void init(int[] data){ QkA79%;j  
this.queue=new int[data.length+1]; [IMa0qs'  
for(int i=0;i queue[++size]=data; XI pXP,Yy  
fixUp(size); w+Ag!O}.L  
} W8\K_M}  
} xl s_g/Q  
I'C{=?  
private int size=0; <pz;G}  
s`&8tP  
private int[] queue; 9NVe>\s_  
TfMuQi'>  
public int get() { "=HCP,  
return queue[1]; @ %kCe>r  
} 6kHAoERp  
V\Rbnvq  
public void remove() { W0X?"Ms|a  
SortUtil.swap(queue,1,size--); }9jy)gF*e  
fixDown(1); \6*3&p  
} ;g*ab  
file://fixdown 9"oc.ue.2D  
private void fixDown(int k) { :v=Yo  
int j;  z>hA1*Ti  
while ((j = k << 1) <= size) { x# 0(CcKK  
if (j < size %26amp;%26amp; queue[j] j++; ?> }bg  
if (queue[k]>queue[j]) file://不用交换 +:;r} 7Zh  
break; rk{DrbRx  
SortUtil.swap(queue,j,k); Td}#o!4!  
k = j; In5' (UHW:  
} 8I3"68c_a  
} @MS;qoc  
private void fixUp(int k) { 3S ,D~L^  
while (k > 1) { |lrLTI^a  
int j = k >> 1; tGe|@.!  
if (queue[j]>queue[k]) \-gZ_>)  
break; Pqi>,c<&mL  
SortUtil.swap(queue,j,k); pS;jrq I#  
k = j; #toKT_  
} t L}i%7  
} J[ du>1D  
!0{":4 \  
} XTyJ*`>  
wz<YflF  
} x~rIr#o  
*^ g7kCe(  
SortUtil: #/\5a;Elc  
xQ=[0!p+  
package org.rut.util.algorithm; XOAZ  
$_%yr ~2  
import org.rut.util.algorithm.support.BubbleSort; =rFgOdj  
import org.rut.util.algorithm.support.HeapSort; 9K-=2hvv  
import org.rut.util.algorithm.support.ImprovedMergeSort; HeCQF=R  
import org.rut.util.algorithm.support.ImprovedQuickSort; sFqZ@t}~  
import org.rut.util.algorithm.support.InsertSort; 9X/c%:)\=  
import org.rut.util.algorithm.support.MergeSort; 89?$xm_m  
import org.rut.util.algorithm.support.QuickSort; nJ<h}*[  
import org.rut.util.algorithm.support.SelectionSort; Yh\ } i  
import org.rut.util.algorithm.support.ShellSort; # XE`8$  
,dOd3y'y  
/** Ew~piuj  
* @author treeroot O'a Srjl  
* @since 2006-2-2 yS%IE>?  
* @version 1.0 x'tYf^Va28  
*/ rZm|7A)i  
public class SortUtil { &W)Lzpx8c  
public final static int INSERT = 1; ) ,1MR=  
public final static int BUBBLE = 2; ]-FK6jw  
public final static int SELECTION = 3; Y5M>&}N  
public final static int SHELL = 4; ;"l>HL:^  
public final static int QUICK = 5; YtI 2Vr/9  
public final static int IMPROVED_QUICK = 6; ;& ny< gQ  
public final static int MERGE = 7; WB<_AIt+  
public final static int IMPROVED_MERGE = 8; )>abB?RZ  
public final static int HEAP = 9; :f<3`x'  
Au(zvgP  
public static void sort(int[] data) { R`sU5:n  
sort(data, IMPROVED_QUICK); 3eX;T +|o  
} _7Z|=)  
private static String[] name={ `&xo;Vnc  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ?UuJk  
}; _PUgK\  
Exd$v"s Y  
private static Sort[] impl=new Sort[]{ tp"dho  
new InsertSort(), o\6A]T=R  
new BubbleSort(), 6Tjj++b(*  
new SelectionSort(), Q[+&n*  
new ShellSort(), ,5J-C!C  
new QuickSort(), %v 0 I;t  
new ImprovedQuickSort(), HF>Gf2- C  
new MergeSort(), z=C'qF`  
new ImprovedMergeSort(), G Xx7/X  
new HeapSort() Ct2m l  
}; NGZEUtj  
ClZ:#uMbN  
public static String toString(int algorithm){ KZ_d..l*W  
return name[algorithm-1]; <,/k"Y=  
} x|C[yu^c  
M\\t)=q  
public static void sort(int[] data, int algorithm) { yM}b  
impl[algorithm-1].sort(data); G=?2{c}U  
} n-iy;L^b  
}@Rq'VPZd  
public static interface Sort { hwgLJY?  
public void sort(int[] data); ^Qrezl&  
} S ykblP37  
::bK{yZm   
public static void swap(int[] data, int i, int j) { []B9Me  
int temp = data; xe ng`!  
data = data[j]; F-K=Ot j  
data[j] = temp; 7g@P$e]  
} W[B%,Km%]  
} m?LnO5Vs  
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
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
10+5=?,请输入中文答案:十五