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
  • 7502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。 b+/z,c6w  
插入排序: j'IZetT  
sa?Ul)L2  
package org.rut.util.algorithm.support; >U7{EfUJdx  
2=]Xe#5J=  
import org.rut.util.algorithm.SortUtil; Ea<kc[Q  
/** q$iGeE#  
* @author treeroot tDWoQ&z2t_  
* @since 2006-2-2 FTJvkcc?m  
* @version 1.0 UI]UxEJ  
*/ ?GT,Y5  
public class InsertSort implements SortUtil.Sort{ i:/Ws1=q  
q+ZN$4m  
/* (non-Javadoc) OyG#  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fk5$z0/  
*/ ~~iFs ,9  
public void sort(int[] data) { r,8~qHbOT  
int temp; 8~!9bg6C  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ` zoC++hx  
} u%24% Q  
} Oaj$Z- f  
} ;${_eab ]  
bc3 T8(  
} Bw Cwy  
L]e@. /C$  
冒泡排序: 0wE)1w<C~  
O'.sK pXe  
package org.rut.util.algorithm.support; xf|vz|J?y  
{kOTQG?y  
import org.rut.util.algorithm.SortUtil; 8M6wc394  
o=)["V  
/** <FofRFaS  
* @author treeroot uXuA4o$t-  
* @since 2006-2-2 @3v[L<S{  
* @version 1.0 EvGKcu  
*/ D/oO@;`'c  
public class BubbleSort implements SortUtil.Sort{ bAwFC2jO[  
}trQ<*D  
/* (non-Javadoc) L"[>tY  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3uy^o  
*/ L (@".{T  
public void sort(int[] data) { \Y$@$)   
int temp; D:=Q)Uh0I  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ^&!iqK2o  
if(data[j] SortUtil.swap(data,j,j-1); [~5<['G  
} t 2Y2v2 J  
} I&Z+FL&@f  
} OhW o  
} L|y 9T {s  
XGcl9FaO}  
} Mh@RO|F  
{^A,){uX]  
选择排序: S4C4_*~Vd  
njGZ#{"eC  
package org.rut.util.algorithm.support; q]rqFP0C  
e13' dCG  
import org.rut.util.algorithm.SortUtil; 78h!D[6  
AYHefAF<w  
/** J`'wprSBb  
* @author treeroot h=o%\F4  
* @since 2006-2-2 p/ au.mc  
* @version 1.0 Mh"vH0\Lj  
*/ XtftG7r9S  
public class SelectionSort implements SortUtil.Sort { c.{t +OR  
j|w_BO 9  
/* L IN$Y  
* (non-Javadoc) h { M=V  
* W8N__  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) s<'WTgy1i  
*/ #McX  
public void sort(int[] data) { t2hI^J0y  
int temp; <d~IdK'\x  
for (int i = 0; i < data.length; i++) { F x3X  
int lowIndex = i; 7OdJ&Gzd  
for (int j = data.length - 1; j > i; j--) { /;;$9O9  
if (data[j] < data[lowIndex]) { "}^}3"/.  
lowIndex = j; Z_ (P^/  
} PM8*/4Cu.5  
} ?F^O7\rw  
SortUtil.swap(data,i,lowIndex); $0,lE+7*  
} z|v/h UrD  
} 5-! Zm]  
Q=?YY-*$  
} \qw1\-q  
q vGP$g  
Shell排序: [W Ud9fUL  
z+{Q(8'b]  
package org.rut.util.algorithm.support; v<:/u(i  
_r?.%] \.  
import org.rut.util.algorithm.SortUtil; m~RMe9Qi  
/ TAza9a  
/** |*y'H*  
* @author treeroot O`TM}  
* @since 2006-2-2 UI_u:a9Q/  
* @version 1.0 rOTxD/  
*/ .mvpFdn  
public class ShellSort implements SortUtil.Sort{ EncJB  
[?S-on.  
/* (non-Javadoc) I.{%e;Reg  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .q5WK#^  
*/ eeCrHt4;  
public void sort(int[] data) { 3)3$ L  
for(int i=data.length/2;i>2;i/=2){ J{r3y&:  
for(int j=0;j insertSort(data,j,i); AkA2/7<[  
} KOit7+Q  
} qrkJ:  
insertSort(data,0,1); ~mk>9Gp  
} xi}3)5  
NU(YllPB  
/** |*JMCI@Mz  
* @param data GEJy?$9   
* @param j  ;GZ/V;S  
* @param i G%XjDxo$I  
*/ !BEl6h  
private void insertSort(int[] data, int start, int inc) { ;6tGRh$b  
int temp; OYj~"-3y)  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); _.+2sm   
} T3In0LQ  
} ,A;wLI  
} VL8yL`~zc.  
3) _(t.$D  
} XpT+xv1`;  
R@lA5w  
快速排序: 2T3b6  
;bYLQ  
package org.rut.util.algorithm.support; a=AP*adx8  
lJ(] ;/%  
import org.rut.util.algorithm.SortUtil; P|rreSv*  
*B%ulsm  
/** IZ&FNOSZ+4  
* @author treeroot QP<vjj%  
* @since 2006-2-2 VdF<#(X+  
* @version 1.0 25/M2u?  
*/ ?;ovh nY)  
public class QuickSort implements SortUtil.Sort{ UsnIx54D3  
B<!WAw+  
/* (non-Javadoc) wG",Obja  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f_;6uCCO  
*/ &m{vLw  
public void sort(int[] data) { ?xYoCn}Z  
quickSort(data,0,data.length-1); 8w9?n3z=}  
} p(pL"  
private void quickSort(int[] data,int i,int j){ 04@?Jb1*  
int pivotIndex=(i+j)/2; NzG] nsw  
file://swap *s6(1 S  
SortUtil.swap(data,pivotIndex,j); rk< 3QXv  
f#| wb~  
int k=partition(data,i-1,j,data[j]); %Z { 7*jtE  
SortUtil.swap(data,k,j); i1DJ0xC]  
if((k-i)>1) quickSort(data,i,k-1); A?ij  
if((j-k)>1) quickSort(data,k+1,j); !"s~dL,7  
D |9ItxYu  
} u8b^DB#+W  
/** ~zyD=jx P9  
* @param data V@`A:Nc_>  
* @param i ?~WDl j3  
* @param j QRlrcauM  
* @return QO <.l`F  
*/  3;f}w g  
private int partition(int[] data, int l, int r,int pivot) { }J(o!2.  
do{ 9y`Vg  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); IpKpj"eoLy  
SortUtil.swap(data,l,r); JXk<t5@D  
} lvk r2Meu<  
while(l SortUtil.swap(data,l,r); xL\R-H^c]  
return l; e3}o3c_  
} D0 ,t,,L  
2F|06E'  
} q#*b4q {  
,xuA%CF-S  
改进后的快速排序: epQdj=h  
f]DO2 r  
package org.rut.util.algorithm.support; $uCY\ xqZ  
Nj$h/P  
import org.rut.util.algorithm.SortUtil; >NAg*1  
/4Jm]"  
/** f~v@;/HL  
* @author treeroot nW!pOTJq21  
* @since 2006-2-2 +=g9T`YbE  
* @version 1.0 (VB-5&b  
*/ NG\^>.8  
public class ImprovedQuickSort implements SortUtil.Sort { Iv51,0A  
4=7h1qex  
private static int MAX_STACK_SIZE=4096; Cbjx{  
private static int THRESHOLD=10; < SvjvV  
/* (non-Javadoc) ~.&2N Ur  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &v.Nj9{zi  
*/ Bb@m-+f  
public void sort(int[] data) { r>;6>ZMe  
int[] stack=new int[MAX_STACK_SIZE]; ,n/^;. _1  
BiCC72oig  
int top=-1; GOj<>h}r  
int pivot; ?@5#p*u0  
int pivotIndex,l,r; =SpD6 9-H  
G ,? l o=m  
stack[++top]=0; z P=3B%$  
stack[++top]=data.length-1; al{}p  
^^{7`X u  
while(top>0){ prCr"y` M  
int j=stack[top--]; 0qhSV B5  
int i=stack[top--]; Ncsk~=[  
q+?>shqsZ  
pivotIndex=(i+j)/2; hWfC"0  
pivot=data[pivotIndex]; >Z!H9]f(  
2sOetmWE7  
SortUtil.swap(data,pivotIndex,j); [zc8f  
V jZx{1kCR  
file://partition 8bW,.to(?x  
l=i-1; iYBp"+#2  
r=j; CT#u+]T  
do{ P=PVOt@ b  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); VY_<c98v  
SortUtil.swap(data,l,r); 82A[[^`  
} drW}w+ !  
while(l SortUtil.swap(data,l,r); $x|4cW2  
SortUtil.swap(data,l,j); CvB)+>oa  
YCS8qEP&  
if((l-i)>THRESHOLD){ i[rXs/]  
stack[++top]=i; 3W.5 [;}  
stack[++top]=l-1; '1[Bbs  
} iqTGh*k  
if((j-l)>THRESHOLD){ Z!SFJ{  
stack[++top]=l+1; i5G"@4(  
stack[++top]=j; y-=YXqj  
} #F25,:hY  
cH{[\F"Eb  
} wxIWh>pZa  
file://new InsertSort().sort(data); C .{`-RO  
insertSort(data); ddG5g  
} VMgO1-F  
/** 3,$G?auW  
* @param data 04P!l  
*/ BIeeu@p  
private void insertSort(int[] data) { (5R_q.Wu  
int temp; ?0VETa ~m  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ~$:=hT1  
} :iVEm9pB)  
} <WGx 6{  
} {3R?<ET]mt  
ED=P  6u  
} /IyCvo  
3_cZaru  
归并排序: . Q$/\E  
gRQV)8uh  
package org.rut.util.algorithm.support; ylVBK{w9  
8zWKKcf7t  
import org.rut.util.algorithm.SortUtil; GjGt' m*  
l>iE1`iL<  
/** jI~GRk  
* @author treeroot Sz3Tp5b  
* @since 2006-2-2 2nA/{W\hC  
* @version 1.0 kNDN<L  
*/ -eSZpzp  
public class MergeSort implements SortUtil.Sort{ j%@wQVxq  
tG}cmK~%  
/* (non-Javadoc) 2j( ]Bt:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'D<84|w:1  
*/ X4dXO5\  
public void sort(int[] data) { NAt; r  
int[] temp=new int[data.length]; AW< z7B D  
mergeSort(data,temp,0,data.length-1); /%9CR'%*c  
} 3Z-N*bhC  
$S_G:}tna  
private void mergeSort(int[] data,int[] temp,int l,int r){ > cM}M=4s  
int mid=(l+r)/2; %.`<ud  
if(l==r) return ; UKfpoDhEe  
mergeSort(data,temp,l,mid); G$_=rHt_%  
mergeSort(data,temp,mid+1,r); 6p1)wf.J  
for(int i=l;i<=r;i++){ "+GKU)  
temp=data; vhot-rBN  
} :3$-Qv X  
int i1=l; +ZU@MOni  
int i2=mid+1; \qB:z7I2  
for(int cur=l;cur<=r;cur++){ Y*q_>kps"  
if(i1==mid+1) HMrl!;:  
data[cur]=temp[i2++]; >UDb:N[  
else if(i2>r) Wi3St`$  
data[cur]=temp[i1++]; +(qs{07A$  
else if(temp[i1] data[cur]=temp[i1++]; Y[WL}:"93  
else UYW{A G2C  
data[cur]=temp[i2++]; [yf&]0  
} g?=|kp  
} %}x$YD O  
"2a&G3}t"  
} AKkr )VgY  
e~iPN.'1  
改进后的归并排序: PShluhY  
QXg9ah~  
package org.rut.util.algorithm.support; s!Y`1h{  
)/_T`cN  
import org.rut.util.algorithm.SortUtil; whdoG{/  
U9:w^t[Pp  
/** r"aJ&~8::W  
* @author treeroot  Z?_ t3  
* @since 2006-2-2  Lkl+f~m  
* @version 1.0 }8,[B50  
*/ |E =8  
public class ImprovedMergeSort implements SortUtil.Sort { TU(w>v  
LA%t'n h  
private static final int THRESHOLD = 10; i<uWLhgh1$  
SB}0u=5  
/* rbD}fUg  
* (non-Javadoc) +M %zOX/  
* w,qYT -R  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k6mC_  
*/ Wo[*P\8  
public void sort(int[] data) { xHo iu$i6  
int[] temp=new int[data.length]; s`E^1jC  
mergeSort(data,temp,0,data.length-1); ;4] sP^+  
} 1p|}=R  
JZM:R  
private void mergeSort(int[] data, int[] temp, int l, int r) { T~" T%r  
int i, j, k; +#IsRiH%>  
int mid = (l + r) / 2; @M!Wos Rk  
if (l == r) ~DJ>)pp  
return; Dd:;8Xo  
if ((mid - l) >= THRESHOLD) )of?!>'S[  
mergeSort(data, temp, l, mid); g k.c"$2  
else Sgy_?Y  
insertSort(data, l, mid - l + 1); asQXl#4r  
if ((r - mid) > THRESHOLD) L dyTB@  
mergeSort(data, temp, mid + 1, r); 0-!K@#$>=  
else alB[/.1  
insertSort(data, mid + 1, r - mid); pf'-(W+  
XKEd~2h<y  
for (i = l; i <= mid; i++) { FBCi,_ \4  
temp = data; 4?s ~S. %  
} d l<7jM?  
for (j = 1; j <= r - mid; j++) { ?-g/hXx;  
temp[r - j + 1] = data[j + mid]; tnCGa%M  
} 9N kr=/I"P  
int a = temp[l]; I8RPW:B;B  
int b = temp[r]; !L)~*!+Gf  
for (i = l, j = r, k = l; k <= r; k++) { E"|LA[o  
if (a < b) { /y.+N`_  
data[k] = temp[i++]; RIDzNdM>U  
a = temp; }#3'72  
} else { <E`Ygac  
data[k] = temp[j--]; ,(  ?q  
b = temp[j]; qek[p_7  
} 4Sq[I  
} & 1:_+  
} $&!i3#FF  
~H)s>6>#v  
/** \ $PB~-Z  
* @param data WHM|kt  
* @param l N7b+GqYpF>  
* @param i 6zGM[2  
*/ K Qz.g3,  
private void insertSort(int[] data, int start, int len) { 9Un3La8PX  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 86BY032H  
} DnZkZ;E/  
} s$,gM,|cK  
} #J,?oe=<4  
} !&n'1gJ)kd  
o JLpFL  
堆排序: wM"P JG  
/4}B}"`Sl=  
package org.rut.util.algorithm.support; R2 I 7d'|v  
_7#9nJ3|  
import org.rut.util.algorithm.SortUtil; 1JFCYJy  
/2n-q_  
/** U^n71m>]%T  
* @author treeroot XIAHUT5~J  
* @since 2006-2-2 _8f? H#&  
* @version 1.0 VT;Vm3\  
*/ *x;&fyR  
public class HeapSort implements SortUtil.Sort{ ?Bdhn{_  
*&d>Vk."]  
/* (non-Javadoc) mYy{G s7  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) b3Uw"{p  
*/ fXV+aZ  
public void sort(int[] data) { xxsax/h  
MaxHeap h=new MaxHeap(); 7l%]/`Y-  
h.init(data); R.FC3<TTv  
for(int i=0;i h.remove(); >+ P5Zm(_  
System.arraycopy(h.queue,1,data,0,data.length); gNsas:iGM  
} IsC`r7  
3Dd"qON!  
private static class MaxHeap{ kT jx.  
@&AUbxoj  
void init(int[] data){ ~ry B*eZH  
this.queue=new int[data.length+1]; 8K]5fkC|  
for(int i=0;i queue[++size]=data; WB7pdSZ  
fixUp(size); 'nrX RDb  
} gB;5&;T:  
} #%;QcDXRe  
5 +Ei! E89  
private int size=0; eYN =?  
/*zngp @  
private int[] queue; )nK-39,G  
I:ag}L8`  
public int get() { EU@ BNja  
return queue[1]; RWe$ZZSz!  
} Q||v U  
N5yt'.d  
public void remove() { Cw*:`  
SortUtil.swap(queue,1,size--); W7_j;7'  
fixDown(1); Em%0C@C  
} ZCT\4Llv#  
file://fixdown BkP'b{z|  
private void fixDown(int k) { nD8 Qeem@  
int j; iB]xYfQ&@V  
while ((j = k << 1) <= size) { lhx"<kR 4  
if (j < size %26amp;%26amp; queue[j] j++; ;77#$H8)  
if (queue[k]>queue[j]) file://不用交换 -&Cb^$.-x  
break; U/W<Sa\`  
SortUtil.swap(queue,j,k); Hd/|f;  
k = j; YT*_ vmJV  
} [eb?Fd~WB]  
} {Tps3{|wt  
private void fixUp(int k) { J|uxn<E<>  
while (k > 1) { 5a`f % h%  
int j = k >> 1; hnk,U:7}  
if (queue[j]>queue[k]) LXZ0up-B-  
break; :"vW;$1 }  
SortUtil.swap(queue,j,k); Cggu#//Z}Q  
k = j; /e2CB"c   
}  ^n5rUwS>  
} nE 2w ?  
O ;34~k   
} fAMk<?  
#{m~=1%;Ya  
} 8l?mNapy  
_+OnH!G0  
SortUtil: 8(6(,WwP}  
<WHu</  
package org.rut.util.algorithm; A>?_\<Gp  
j5rB+  
import org.rut.util.algorithm.support.BubbleSort; am'11a@*  
import org.rut.util.algorithm.support.HeapSort; TbUouoc  
import org.rut.util.algorithm.support.ImprovedMergeSort; Qb.Ve7c  
import org.rut.util.algorithm.support.ImprovedQuickSort; H n^)Xw  
import org.rut.util.algorithm.support.InsertSort; *&=sL  
import org.rut.util.algorithm.support.MergeSort; u . xUM  
import org.rut.util.algorithm.support.QuickSort; k Y}r^NaQA  
import org.rut.util.algorithm.support.SelectionSort; W<QMUu  
import org.rut.util.algorithm.support.ShellSort; q)m0n237P  
RjcU0$Hi  
/** )V6Bzn}9  
* @author treeroot fLtN-w6t  
* @since 2006-2-2 vj_[LFE  
* @version 1.0 sU|\? pJ  
*/ M_OvIU(E  
public class SortUtil { cbton<r~  
public final static int INSERT = 1; ?ufX3yia  
public final static int BUBBLE = 2; i40'U?eG~6  
public final static int SELECTION = 3; +nz6+{li\  
public final static int SHELL = 4; 61[ 8I},V  
public final static int QUICK = 5; +.EP_2f9  
public final static int IMPROVED_QUICK = 6; Az`c? W%  
public final static int MERGE = 7; K1gZ>FEY|N  
public final static int IMPROVED_MERGE = 8; M2$.Y om[  
public final static int HEAP = 9; \~(scz$  
As y&X  
public static void sort(int[] data) { "CX@a"  
sort(data, IMPROVED_QUICK); uZg[PS=@!X  
} ~l^Q~W-+  
private static String[] name={ mB.j?@Y%  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" MXsCm(  
}; mBrH`!  
j_ \?ampF  
private static Sort[] impl=new Sort[]{ MR?5p8S#g  
new InsertSort(), or8`.h EHI  
new BubbleSort(), RCL}bE  
new SelectionSort(), |h7 d #V>  
new ShellSort(), Sb/`a~q ^  
new QuickSort(), xa=Lu?t%<  
new ImprovedQuickSort(), a7? )x])e  
new MergeSort(), x @a3STKT  
new ImprovedMergeSort(), ]SO-NR  
new HeapSort() G0izZWc  
}; ?_@_NV MY  
BM vGw  
public static String toString(int algorithm){ ^?~WIS  
return name[algorithm-1]; xnR;#Yc  
} y37c&XYq  
|*T`3@R;3  
public static void sort(int[] data, int algorithm) { ;UAi>//#   
impl[algorithm-1].sort(data); Qvx[F:#Tk  
} P4VMGP  
)Z"  
public static interface Sort { zUIh^hbFf  
public void sort(int[] data); [Zpx :r}  
} 5Y3L  
l!d |luqbA  
public static void swap(int[] data, int i, int j) { &>xd6-  
int temp = data; (v)/h>vS  
data = data[j]; DD?zbN0X  
data[j] = temp; }g9g]\.!a  
} m-v0=+~&  
} v|7=IJ  
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:
3+5=?,请输入中文答案:八 正确答案:八