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
  • 8190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。 F!P,%Jm I<  
插入排序: *9 (E0"  
0F6~S   
package org.rut.util.algorithm.support; [0lO0ik>G  
@ssT$#)$!  
import org.rut.util.algorithm.SortUtil; \{= {{O  
/** XQZiJ %'  
* @author treeroot cXK.^@du  
* @since 2006-2-2 y<PQ$D)  
* @version 1.0 WTu!/J<\  
*/ !J[!i"e  
public class InsertSort implements SortUtil.Sort{ V5p->X2#  
oE)xL%*  
/* (non-Javadoc) Z61L;E  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) OV`li#H  
*/ t?Q  
public void sort(int[] data) { goc; .~?  
int temp; }O2P>Z?V  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); bSa]={}L(  
} bd[iD?epD]  
} $Km~x  
} 9[h8Dy  
I7W?}bR*6  
} U5[r&Y D  
h$p}/A  
冒泡排序: # ELYPp]6  
z pg512\y  
package org.rut.util.algorithm.support; hHgH'  
g|M>C:ZT  
import org.rut.util.algorithm.SortUtil; tv5N wM  
,r;E[k@  
/** Z<'iT%6+r  
* @author treeroot @{ L|&Mk!  
* @since 2006-2-2 MHS|gR.c  
* @version 1.0 kArF Gb2c  
*/ ={50>WXE  
public class BubbleSort implements SortUtil.Sort{ B5[As8Sa  
N!<X% Ym  
/* (non-Javadoc) %yK- Q,'O  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HBA|NV3.  
*/ 3gv?rJV  
public void sort(int[] data) { +ZkJ{r0,(  
int temp; &_' evZ8  
for(int i=0;i for(int j=data.length-1;j>i;j--){ 6t gq.XL^n  
if(data[j] SortUtil.swap(data,j,j-1); f/{ClP.  
} z6fY_LL  
} &UAYYH  
}  KON^  
} HC"yC;_  
<ka zV<"  
} D4*_/,}  
OX[r\  
选择排序: Fe2t[y:8h  
Nj +^;Y  
package org.rut.util.algorithm.support; xu@xP5GB^  
W>u{JgY  
import org.rut.util.algorithm.SortUtil; =[0| qGzg  
J\Tu=f)  
/** IV%Rph>d  
* @author treeroot (W#^-*$R  
* @since 2006-2-2 67U6`9d  
* @version 1.0 [buLo*C4:  
*/ NKiWt Z"  
public class SelectionSort implements SortUtil.Sort { 0Kg?X  
gI/(hp3ob  
/* )ib$*dmUP  
* (non-Javadoc) >|mZu)HIY;  
* f,Am;:\ |  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) xdMY2u  
*/ p9&gKIO_m  
public void sort(int[] data) { biRkq c;  
int temp; yoM^6o^,D  
for (int i = 0; i < data.length; i++) { ),2|TlQ  
int lowIndex = i; Rpj{!Ia  
for (int j = data.length - 1; j > i; j--) { P!lfk:M^;  
if (data[j] < data[lowIndex]) { [J55%N;#1  
lowIndex = j; PgsG*5WQ  
} whFJ]  
} Z7k ku:9  
SortUtil.swap(data,i,lowIndex); 4j zjrG  
} V?~!Dp  
} Nnfq!%   
`chD*@76I  
} GtKSA#oYZB  
83VFBY2q  
Shell排序: Kd*=-  
yTf/]H]d  
package org.rut.util.algorithm.support; n*9nzx#q  
H%0WD_  
import org.rut.util.algorithm.SortUtil; D5Z)"~'  
E@-5L9eJ\  
/** w8zr0z  
* @author treeroot R: [#OH.c  
* @since 2006-2-2 Zh_3ydMD1  
* @version 1.0 y[GqV_~?Y  
*/ un}!&*+  
public class ShellSort implements SortUtil.Sort{ QY*F(S,\  
^?|d< J:{  
/* (non-Javadoc) x:c'ek  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #k,.xMJ~  
*/ |W}D_2  
public void sort(int[] data) { "`h.8=-  
for(int i=data.length/2;i>2;i/=2){ YD0j&@.  
for(int j=0;j insertSort(data,j,i); EA z>`~  
} uH#X:Vne  
} (-VH=,Md  
insertSort(data,0,1); x@D> JG  
} OHv9|&Tpl  
bD?gwhAKA  
/** 8Nx fYA  
* @param data @~FJlG(n  
* @param j I:1Pz|$`  
* @param i ;@O8y\@  
*/ )k]{FM  
private void insertSort(int[] data, int start, int inc) { Z_>:p^id  
int temp; 4\j1+&W   
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 7^1K4%IPl  
} tg<bVA)E'J  
} SZ:R~4 A  
} |W*2L] &  
g[;&_gL  
} iH>b"H >  
4L r,}t A  
快速排序: uWi pjxS  
Q |hBGH9:B  
package org.rut.util.algorithm.support; %&J`mq  
!uA'0U?ky  
import org.rut.util.algorithm.SortUtil; }H/94]~tH  
[8vqw(2Tm(  
/** iz+,,UH  
* @author treeroot mq4VwT  
* @since 2006-2-2 ,V)hV@Dk  
* @version 1.0 Q+'fTmT[,  
*/ M #%V%<  
public class QuickSort implements SortUtil.Sort{ ony;U#^T  
3f:]*U+O  
/* (non-Javadoc) lq?N>~PG  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #v4^,$k>  
*/ $4kbOqn4  
public void sort(int[] data) { kmt+E'^]  
quickSort(data,0,data.length-1); DLO#_t^v.  
} Ds@K%f(.?w  
private void quickSort(int[] data,int i,int j){ ZIc-^&`r=  
int pivotIndex=(i+j)/2; rMJ4w['J=  
file://swap V'9OGn2v  
SortUtil.swap(data,pivotIndex,j); z_). -  
1uz K(j8w  
int k=partition(data,i-1,j,data[j]);  h}}7_I9  
SortUtil.swap(data,k,j); ObataUxQT  
if((k-i)>1) quickSort(data,i,k-1); z; >O5a>z  
if((j-k)>1) quickSort(data,k+1,j); s}DNu<"g  
[3qJUJM  
} L>N)[;|  
/** |r4&@)  
* @param data Ey_mK\'  
* @param i \;+b1  
* @param j \_+Af`  
* @return Rb <{o8  
*/ f Qw|SW  
private int partition(int[] data, int l, int r,int pivot) { Iapzhy2l  
do{ luz,z( v  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 7K!n'dAi6  
SortUtil.swap(data,l,r); QdIoK7J 9  
} s3~6[T?8  
while(l SortUtil.swap(data,l,r); .o8pC  
return l; fi6_yFl  
} L)Da1<O  
" j:15m5  
} 0JhUncx  
xCMuq9zt@  
改进后的快速排序: prxmDI   
O^R ^Aw  
package org.rut.util.algorithm.support; ?!bWUVC)_  
pf0uwXo  
import org.rut.util.algorithm.SortUtil; +R31YR8C0  
WW~QK2o-@  
/** a0  w  
* @author treeroot 6<UI%X  
* @since 2006-2-2 >JN[5aus  
* @version 1.0 BFn}~\wzK  
*/ ~ o5h}OU"  
public class ImprovedQuickSort implements SortUtil.Sort { opCQ=G1  
VF9-&HuC  
private static int MAX_STACK_SIZE=4096; E+eC #!&w  
private static int THRESHOLD=10; [_p&,$z8[  
/* (non-Javadoc) @'S !G"\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) yMf["AvG  
*/ 23`pog{n  
public void sort(int[] data) { 4$v08z Z  
int[] stack=new int[MAX_STACK_SIZE]; x 0L,$Ol  
Rs 0Gqx  
int top=-1; GZ"J6/0-|  
int pivot; B 6,X)  
int pivotIndex,l,r; {7FD-Q[tS  
R<1[hH9"o  
stack[++top]=0; Yc V*3`  
stack[++top]=data.length-1; 79MB_Is]s  
]F,v#6qi  
while(top>0){ FDRpK 5cw  
int j=stack[top--]; LpSd/_^b  
int i=stack[top--]; 3 jay V  
Hd=!  
pivotIndex=(i+j)/2; t8b,@J`R  
pivot=data[pivotIndex]; cX@72  
~r>N  
SortUtil.swap(data,pivotIndex,j); XZ&q5]PJI  
2<5s0GT'/  
file://partition 7~ok*yGw  
l=i-1; p\7(IhW@  
r=j; 1)wzSEV@  
do{ <rFY$ ?x  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ||k^pzj%  
SortUtil.swap(data,l,r); Mo+HLN  
} 68jq1Y Pv  
while(l SortUtil.swap(data,l,r); }c*6|B@f  
SortUtil.swap(data,l,j); Ot_xeg;7  
t5pf4M7  
if((l-i)>THRESHOLD){ t6O/Q0_  
stack[++top]=i; w`J s "_\  
stack[++top]=l-1; R%N&Y~zH  
} <CUe"WbE)  
if((j-l)>THRESHOLD){ |^E# cI  
stack[++top]=l+1; u4[3JI>  
stack[++top]=j; ro4 XA1  
} gyW##M@{  
htGk:  
} Yj^n4G(h  
file://new InsertSort().sort(data); zy9# *gGq  
insertSort(data); P:y M j&)  
} =<,AzuV  
/** 7:t *&$  
* @param data Iz\IQa  
*/ "!6 Ax-'  
private void insertSort(int[] data) { 7$7Y)&\5 w  
int temp; ~h{v^ }  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 2*K _RMr~  
} +;Jb)8  
} Td5;bg6Qy  
} NK+iLXC  
jnuovM!x~  
} *a7&v3X  
}*4K]3et$  
归并排序: X,<n|zp  
vH+QI  
package org.rut.util.algorithm.support; t*zBN!Wu_  
MNKB4C8 >  
import org.rut.util.algorithm.SortUtil; Zv*Z^; X9  
Ncu\;K\N  
/** PZRm.vC)k  
* @author treeroot u"\HBbBx  
* @since 2006-2-2 .h2K$(/  
* @version 1.0 L s=2!  
*/ mzz77i  
public class MergeSort implements SortUtil.Sort{ >g@;`l.Z#  
x62 b=k}  
/* (non-Javadoc) 3Q`F x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) PYl(~Vac  
*/ H1'`* }V  
public void sort(int[] data) { /u }AgIb  
int[] temp=new int[data.length]; j1)HIQE|5f  
mergeSort(data,temp,0,data.length-1); BOLG#}sm  
} hmOhXE[ a&  
tdn[]|=  
private void mergeSort(int[] data,int[] temp,int l,int r){ 9Kw4K#IqQ  
int mid=(l+r)/2; [{ak&{R,9{  
if(l==r) return ; ,o}!pQ  
mergeSort(data,temp,l,mid); `7P4O   
mergeSort(data,temp,mid+1,r); z6 v RTY  
for(int i=l;i<=r;i++){ x)wIGo  
temp=data; =~% B}T  
} [EDw0e  
int i1=l; SxYX`NQ  
int i2=mid+1; iq '3.-xYr  
for(int cur=l;cur<=r;cur++){ O&=?,zLO[  
if(i1==mid+1) y(B~)T~e@  
data[cur]=temp[i2++];  s%Q pb{  
else if(i2>r) +pJ;}+  
data[cur]=temp[i1++]; $Xw .iN]g  
else if(temp[i1] data[cur]=temp[i1++]; ]BU,*YaB  
else <`sVu  
data[cur]=temp[i2++]; jYet!l  
} P.P3/,  
} ` !HGM>  
>b#z o,  
} ,ijgqEN  
lcij}-z:%e  
改进后的归并排序: P@:#NU[  
pr.Vfb  
package org.rut.util.algorithm.support; \BaN?u)a  
*plsZ*Q8  
import org.rut.util.algorithm.SortUtil; ho2o/>Ef3  
~wIVw}  
/** iLn)Z0<\o  
* @author treeroot SC`.VCfc.  
* @since 2006-2-2 2"C'Au  
* @version 1.0 Xvm.Un< N  
*/ 0ANqEQX  
public class ImprovedMergeSort implements SortUtil.Sort { 'MPt K  
J[;c}  
private static final int THRESHOLD = 10; k/O|ia 6  
Qv,|*bf  
/* dC_L~ }=  
* (non-Javadoc) |cJyP9}n  
* @D-l_[  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Mi9A%ZmP  
*/ *@l NL=%R  
public void sort(int[] data) { ZebXcT ,41  
int[] temp=new int[data.length]; ',`iQt!Lx  
mergeSort(data,temp,0,data.length-1); s d>&6 R^  
} gQgG_&xkC  
9zEO$<e o  
private void mergeSort(int[] data, int[] temp, int l, int r) { U;:>vi3p  
int i, j, k; +q"d=   
int mid = (l + r) / 2; V{@<Z8sW#  
if (l == r) 9M:wUYHT  
return; C 7YZ;{t  
if ((mid - l) >= THRESHOLD) \i}n1Qd  
mergeSort(data, temp, l, mid); P*T 'R  
else bS<lB!  
insertSort(data, l, mid - l + 1); 2BBGJE  
if ((r - mid) > THRESHOLD) wt[MzpRP  
mergeSort(data, temp, mid + 1, r); rv1kIc5Za<  
else &4sUi K"  
insertSort(data, mid + 1, r - mid); y. @7aT5  
.JZoZ.FAb  
for (i = l; i <= mid; i++) { "2)<'4q5)  
temp = data; BHOxwW{  
} cfMj^*I  
for (j = 1; j <= r - mid; j++) { ^.&uYF&  
temp[r - j + 1] = data[j + mid]; Hu|NS{Ke-  
} nM34zVy  
int a = temp[l]; n>)CCf@H  
int b = temp[r]; U_m<W$"HF  
for (i = l, j = r, k = l; k <= r; k++) { Pon 2!$  
if (a < b) { 1]aM)},  
data[k] = temp[i++]; 4~hd{8  
a = temp; LpeQx\  
} else { I1BVqIt1i  
data[k] = temp[j--]; FF6[qSV  
b = temp[j]; oqB(l[%z2  
} mMjY I1F  
} [MdVgJ9'  
} *oL?R2#7  
}RYr)  
/** ;RB]awE  
* @param data >B U 0B  
* @param l g+t-<D"L5  
* @param i kjfZ*V=-  
*/ ]Vo;ZY_\  
private void insertSort(int[] data, int start, int len) { '}e_8 FS  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); c^><^LGb  
} E#v}//  
} AIR,XlD  
} 3ox%1x NA  
} 9Iq[@v  
GL_YT.(!  
堆排序: 8s-y+M@.  
cKdn3 2Y4  
package org.rut.util.algorithm.support; bdZ[`uMD  
" JFx  
import org.rut.util.algorithm.SortUtil; *9y)B|P^  
!'wh hi  
/** K PSFy<  
* @author treeroot Z,)4(#b =  
* @since 2006-2-2 ;e4 15T  
* @version 1.0 @X+m,u  
*/ ?1*Ka  
public class HeapSort implements SortUtil.Sort{ kfr' P u  
U>w#`Sy[  
/* (non-Javadoc) 'i;1n  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) FkY}6  
*/ _v bCC7Bf8  
public void sort(int[] data) { T\I}s"d  
MaxHeap h=new MaxHeap(); jj_z#6{  
h.init(data); O B`(,m#  
for(int i=0;i h.remove(); H )hO/1 m  
System.arraycopy(h.queue,1,data,0,data.length); #%O|P&rA  
} r*HbglB  
`-fWNHs  
private static class MaxHeap{ N;4bEcWjp  
pFgpAxl  
void init(int[] data){ w=:o//~6j  
this.queue=new int[data.length+1]; |a4cER.'2^  
for(int i=0;i queue[++size]=data; *o.f<OwOz  
fixUp(size); V[ju7\>$Z  
} p[R4!if2  
} })W9=xO~  
q\s"B.(G"  
private int size=0; 5;'(^z-bL  
%jk7JDvl  
private int[] queue; M.fAFL  
Z,zkm{9*  
public int get() { @~k4,dJ  
return queue[1]; '&hz *yk  
} yN[aBYJx,M  
?M!Mb-C[  
public void remove() { p3r("\Za,  
SortUtil.swap(queue,1,size--); dUN{@a\R0  
fixDown(1); b S-o86u  
} }`KK  
file://fixdown fF6bEJl3  
private void fixDown(int k) { mi[t1cN)=  
int j; QN47+)cVt"  
while ((j = k << 1) <= size) { fg$#ZCi  
if (j < size %26amp;%26amp; queue[j] j++; .3 >"qv  
if (queue[k]>queue[j]) file://不用交换 m)AF9#aT2  
break; @k=UB&?I  
SortUtil.swap(queue,j,k); Q$ +6f,m#W  
k = j; '8J!(+  
} #[ f]-c(!  
} hL4T7`  
private void fixUp(int k) {  I~T   
while (k > 1) { 4)"S /u  
int j = k >> 1; Pi+pQFz5  
if (queue[j]>queue[k]) Tp46K\}Uf  
break; i<0_sxfUD  
SortUtil.swap(queue,j,k); &F- \t5X=i  
k = j; X)e#=w!fi3  
} P~ : N  
} KH$|wv  
r[?GO"ej5  
} x~Y{ {  
;b{yu|  
} s$%t2UaV  
xX f,j#`"  
SortUtil: }y%c.  
l1bkhA b  
package org.rut.util.algorithm; K| dI'TnW  
l~]D|92  
import org.rut.util.algorithm.support.BubbleSort; eFh7#~m  
import org.rut.util.algorithm.support.HeapSort; p}oGhO&=  
import org.rut.util.algorithm.support.ImprovedMergeSort; r<$o [,W  
import org.rut.util.algorithm.support.ImprovedQuickSort; WNY:HH  
import org.rut.util.algorithm.support.InsertSort; nb<e<>L  
import org.rut.util.algorithm.support.MergeSort;  nU4to  
import org.rut.util.algorithm.support.QuickSort; Rk,'ujc  
import org.rut.util.algorithm.support.SelectionSort; xa.tH)R  
import org.rut.util.algorithm.support.ShellSort; hkb&]XWi[  
oXjoQ  
/** hK,a8%KnFA  
* @author treeroot MaPOmS8?  
* @since 2006-2-2 WBD?|Ss  
* @version 1.0 ?3lA ogB  
*/ N4#D&5I",  
public class SortUtil { 5(gWK{R)*  
public final static int INSERT = 1; I8a3:)  
public final static int BUBBLE = 2; k#bG&BF  
public final static int SELECTION = 3; ]1FLG* sB  
public final static int SHELL = 4; "OwK-  
public final static int QUICK = 5; nY7gST  
public final static int IMPROVED_QUICK = 6; )=#e*1!b  
public final static int MERGE = 7; +OqEe[Wk#  
public final static int IMPROVED_MERGE = 8; Gx %=&O  
public final static int HEAP = 9; GE`1j'^-  
[GPCd@  
public static void sort(int[] data) { U shIQh  
sort(data, IMPROVED_QUICK); G^N@ r:RS  
} 6DU~6c=)  
private static String[] name={ *Y?oAVkz  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" #}Yrxf  
}; 9dw* ++  
k3H0$1  
private static Sort[] impl=new Sort[]{ "={*0P  
new InsertSort(), 8\"Gs z  
new BubbleSort(), +%v1X&_\  
new SelectionSort(), _Dd>e=v  
new ShellSort(), <#J5.I 1  
new QuickSort(), 5JhvYsf3_  
new ImprovedQuickSort(), <}:` Y"  
new MergeSort(), CIz0Gjtx6m  
new ImprovedMergeSort(), `!t-$i  
new HeapSort() 1 _Oc1RM   
}; aW*k,\:e  
4e/!BGkAS  
public static String toString(int algorithm){ d&CpaOSu  
return name[algorithm-1]; PxgJ7d  
} ]/kpEx  
A+!,{G  
public static void sort(int[] data, int algorithm) { 3rB0H   
impl[algorithm-1].sort(data); /q+;!EM  
} l 9 wO x  
qC{JsX`~  
public static interface Sort { FLs$  
public void sort(int[] data); En1LGi4#  
} P woiX#vz  
BGBHA"5fz  
public static void swap(int[] data, int i, int j) { v+"4YIN  
int temp = data; vue^bn  
data = data[j]; GyWa=KW.u  
data[j] = temp; m)} 01N4  
} &}[P{53sr  
} u*v<dsGQ  
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