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
  • 8379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。 bL:+(/:  
插入排序: Py9:(fdS  
2C_I3S ~U  
package org.rut.util.algorithm.support; I$TD[W  
#Guwbg  
import org.rut.util.algorithm.SortUtil; d)%l-jj9,  
/** Ox aS<vQ3  
* @author treeroot 85H*Xm?d#  
* @since 2006-2-2 N9H qFp  
* @version 1.0 pL.~z  
*/ p2GN93,u@P  
public class InsertSort implements SortUtil.Sort{ esv<b>`R  
`Z`o[]%  
/* (non-Javadoc) M7gqoJM'Q  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .KYDYdoS'  
*/ |z)7XK  
public void sort(int[] data) { TU2MG VYy  
int temp; X=k|SayE8  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); lzz68cT  
} 0NSCeq%;6q  
} ?zXlLud8  
} w 3L+7V,!  
^X*l&R_=R  
} @j r$4pM?  
H//,qxDc  
冒泡排序: f./j%R@  
i+Xb3+R  
package org.rut.util.algorithm.support; W$R@Klz  
!;U}ax;AF  
import org.rut.util.algorithm.SortUtil; ({t6Cbw  
LC/%AbM  
/** G7HvA46  
* @author treeroot )|U+<r<  
* @since 2006-2-2 e0o)Jo.P  
* @version 1.0 -fx$)d~  
*/ 2CPh'7|l  
public class BubbleSort implements SortUtil.Sort{ `[4{]jX+<  
4Cf.%f9@  
/* (non-Javadoc) F)tcQO"G  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) mLeK7?GL  
*/ u,Cf4H*xS  
public void sort(int[] data) { 9C1\?)"D^e  
int temp; L q;=UE  
for(int i=0;i for(int j=data.length-1;j>i;j--){ yKOC1( ~  
if(data[j] SortUtil.swap(data,j,j-1); ,-Yl%R.W=  
} AhSN'gWpbF  
} pU@ &-  
} )>^!X$`3  
} RMxFo\TK;  
HS 1zA  
} Bjsg!^X7  
k iY1  
选择排序: Md1ePp]  
:.f m LL  
package org.rut.util.algorithm.support; s\ YHT.O?  
69{q*qCW  
import org.rut.util.algorithm.SortUtil; 'W J3q|o/  
;[[oZ  
/** l>jNBxB|/A  
* @author treeroot (wZ/I(4  
* @since 2006-2-2 >iI-Cs7TD  
* @version 1.0 rTtxmw0  
*/ rW0-XLbL5H  
public class SelectionSort implements SortUtil.Sort { .OSFLY#[?  
~myY-nEY  
/* Q)\4  .d  
* (non-Javadoc) c`_[q{(^m  
* _air'XQ&!  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 18gApRa  
*/ I=9sTR)  
public void sort(int[] data) { Y`!Zk$8  
int temp; 5Ls ][l7  
for (int i = 0; i < data.length; i++) { '@,M 'H{  
int lowIndex = i; 6Y&`mgMF'  
for (int j = data.length - 1; j > i; j--) { WBY_%RTx  
if (data[j] < data[lowIndex]) { % (x9~"  
lowIndex = j; K0] 42K  
} FWDAG$K@0  
} &`Ek-b!7  
SortUtil.swap(data,i,lowIndex); zP|^) h5  
} xh9Os <  
} jLv8K  
.V`N^ H:l  
} xy[aZr  
Ipyr+7/zJ  
Shell排序: R*r;`x  
\d}>@@U&  
package org.rut.util.algorithm.support; #8qhl  
bOS; 1~~  
import org.rut.util.algorithm.SortUtil; 8t >nL  
;dZuO[4\  
/** 9B?-&t  
* @author treeroot E]dmXH8A  
* @since 2006-2-2 M#;"7Qg  
* @version 1.0 rki0!P`  
*/ EN;s 8sC!  
public class ShellSort implements SortUtil.Sort{ #l#8-m8g)  
'j(F=9)  
/* (non-Javadoc) S>V+IKW;(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) kBg8:bo~  
*/ /l1OC(hm  
public void sort(int[] data) { :B  9>  
for(int i=data.length/2;i>2;i/=2){ dh S7}n  
for(int j=0;j insertSort(data,j,i); (]N- HN]v  
} _UGR+0'Q\  
} X)b@ia'"Wp  
insertSort(data,0,1); K2 6`wt  
} hU6oWm  
;9$71E  
/** =bJ7!&  
* @param data v8f1o$R  
* @param j B"?ivxM:U  
* @param i 3>QkO.b  
*/ 7m:ZG  
private void insertSort(int[] data, int start, int inc) { Lv UQ&NmY  
int temp; aI;-NnC  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); {e p(_1  
} )9i$ 1"a(  
} y ~n1S~5cI  
} vb`R+y@  
a(uZ}yS$  
} y4)iL?!J~  
e2qSU[  
快速排序: `3:Q.A_?  
{hFH6]TA  
package org.rut.util.algorithm.support; je8 5G`{DC  
GRh430V [  
import org.rut.util.algorithm.SortUtil; 0p]v#z}  
Kk`Lu S?  
/** nO+R >8,Q  
* @author treeroot %2y5a`b  
* @since 2006-2-2 )M><09  
* @version 1.0 "S H=|5+  
*/ lHAWZyO  
public class QuickSort implements SortUtil.Sort{ % :h %i|  
 :g~_  
/* (non-Javadoc) YS:p(jtd  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) rCUGaf~  
*/ Ad&VOh+0  
public void sort(int[] data) { F1meftK  
quickSort(data,0,data.length-1); "+E\os72|  
} T@A Qe[U'v  
private void quickSort(int[] data,int i,int j){ ]I_*+^?tI  
int pivotIndex=(i+j)/2; BP}@E$  
file://swap ~7an j.  
SortUtil.swap(data,pivotIndex,j); ocu,qL)W  
E>+>!On)b  
int k=partition(data,i-1,j,data[j]); -9::M}^2  
SortUtil.swap(data,k,j); k.z(.uc=  
if((k-i)>1) quickSort(data,i,k-1); >, [@SF%  
if((j-k)>1) quickSort(data,k+1,j); !Au#j^5K-o  
#_{Q&QUk  
} F$bV}>-1k  
/** `Qjs {H  
* @param data IVY)pS"pR"  
* @param i ^e =G} N^  
* @param j P?S]Q19Q4  
* @return )2_[Ww|.  
*/ h aApw(.%  
private int partition(int[] data, int l, int r,int pivot) { Uo71C4ev  
do{ <v'&Pk<  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); =r*Ykd;W|E  
SortUtil.swap(data,l,r); Vd(n2JMtG  
} tj$[szo  
while(l SortUtil.swap(data,l,r); 'qvj[lpGr  
return l; -]+pwZ4g  
} S*$?~4{R  
vxHFNGI  
} 2;u i'B  
|R1T;J<[  
改进后的快速排序: $rI 1|;^  
^sB0$|DU  
package org.rut.util.algorithm.support; 15hqoo9!  
B0%=! &  
import org.rut.util.algorithm.SortUtil; P:t .Nr"  
Zskj?+1  
/** U8AH,?]#  
* @author treeroot 0~z\ WSo  
* @since 2006-2-2 HC/z3b;  
* @version 1.0 "L:4 7!8  
*/ ,T`,OZm  
public class ImprovedQuickSort implements SortUtil.Sort { t:5-Ro  
H#DvCw  
private static int MAX_STACK_SIZE=4096; t2s/zxt  
private static int THRESHOLD=10; Pal=I)  
/* (non-Javadoc)  +l/v`=C  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) XS">`9o!  
*/ S.)Jp -&K  
public void sort(int[] data) { -X~mW  
int[] stack=new int[MAX_STACK_SIZE]; 18!y7 _cFT  
Z sTtSM\Ac  
int top=-1; dniU{v  
int pivot; BUJ\[/  
int pivotIndex,l,r; P0jr>j@^-  
9MYk5q.X:  
stack[++top]=0; :t]HY2  
stack[++top]=data.length-1; *Bq}.Yn  
{PcJuRTHB  
while(top>0){ XS[L-NHG  
int j=stack[top--]; dy&UF,l6  
int i=stack[top--]; ]MV8rC[\  
`daqzn  
pivotIndex=(i+j)/2; B-R#?Xn:!I  
pivot=data[pivotIndex]; ksOGCd^G7  
r8Mx +r  
SortUtil.swap(data,pivotIndex,j); "|L" C+tE  
A913*O: \  
file://partition ^,acU\}VqP  
l=i-1; cKe%P|8  
r=j; B6Vlc{c5SO  
do{ 15\m.Ix  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); `t&{^ a&Y"  
SortUtil.swap(data,l,r); &)%+DUV|  
} iqQT ^  
while(l SortUtil.swap(data,l,r); Sw\*$g]  
SortUtil.swap(data,l,j); {`QHg O  
[|DKBJ  
if((l-i)>THRESHOLD){ d9#Vq=H /  
stack[++top]=i; z%%O-1   
stack[++top]=l-1; <EpL<K%  
} hm`=wceK  
if((j-l)>THRESHOLD){ d,b4q&^X8  
stack[++top]=l+1; \^c4v\s<o#  
stack[++top]=j; D(#f`Fj;  
} I6W`yh`I)  
_h~ksNm5u  
} Q+ ^ &  
file://new InsertSort().sort(data); YAr6 cl  
insertSort(data); d;Vy59}eY  
} ;*<tU n^t  
/** ;sZG=y@  
* @param data F4EAC|Y  
*/ GM%+yS}(P  
private void insertSort(int[] data) {  `Y#At3{  
int temp; @ _Ey"k<  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Fb5U@X/vE  
} ~~tTr $  
} EKwQ$?I  
} `>gG"1,]  
0bg"Q4  
} $MQ}+*Wr  
#z*,CU#S9d  
归并排序: 9%/hoA)  
tIsWPt]Y  
package org.rut.util.algorithm.support; iC gZ3M]  
 zUfq.   
import org.rut.util.algorithm.SortUtil; =3e7n2N)  
,XD" p1(|G  
/** ^SdF\uk{?6  
* @author treeroot -/yqiC-yx  
* @since 2006-2-2 _pvB$&  
* @version 1.0 Ys"wG B>  
*/ ToXWFX  
public class MergeSort implements SortUtil.Sort{ F"@%7xy  
I{Zb/}k-  
/* (non-Javadoc) 4T@:_G2b  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) y+k_&ss  
*/ R'Sd'pSDN  
public void sort(int[] data) { $*yYmF  
int[] temp=new int[data.length]; YG "Ta|@5  
mergeSort(data,temp,0,data.length-1); Dp@XAyiA[  
} f-ltV<C_  
gq+SM  i=  
private void mergeSort(int[] data,int[] temp,int l,int r){ t un}rdb  
int mid=(l+r)/2; j]Auun  
if(l==r) return ; 7aG.?Ca%  
mergeSort(data,temp,l,mid); DD| 0?i  
mergeSort(data,temp,mid+1,r); L$ZjMJ  
for(int i=l;i<=r;i++){ b+rxin".  
temp=data; $*Ucfw1T  
} ]P4WfV d  
int i1=l; <Vat@e  
int i2=mid+1; jh5QIZf=  
for(int cur=l;cur<=r;cur++){ j#NyNv(jE1  
if(i1==mid+1) ]%\,.&=hT  
data[cur]=temp[i2++]; ,UNb#=it  
else if(i2>r) D31X {dJ  
data[cur]=temp[i1++]; uZqL'l+/y  
else if(temp[i1] data[cur]=temp[i1++]; o`U}u qrO  
else SeX]|?D  
data[cur]=temp[i2++]; YW}$eW*  
} W^(zP/  
} vgfC{]v<W]  
<I+kB^Er  
} -t`kb*O3`  
3]Z1kB  
改进后的归并排序: 5E!C?dv(z  
VUb>{&F[  
package org.rut.util.algorithm.support; L*@`i ]jl  
5{ c;I<0  
import org.rut.util.algorithm.SortUtil; cc@W 6W  
|;ztK[(  
/** (jc@8@Wo.  
* @author treeroot lZFu|(  
* @since 2006-2-2 ] l,BUf-O  
* @version 1.0 L^J4wYFTO  
*/ yx-{Pj X   
public class ImprovedMergeSort implements SortUtil.Sort { 7v: XAU  
#M,&g{  
private static final int THRESHOLD = 10; GkGiQf4hh  
[FFr}\}bY  
/* >O'\ jp}$l  
* (non-Javadoc) -Q WvB  
*  Nx}nOm  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) DfXkLOGik  
*/ v"*r %nCi  
public void sort(int[] data) { f|[7LIdh-  
int[] temp=new int[data.length]; bI):-2&s}  
mergeSort(data,temp,0,data.length-1); iw@rW5%'~  
} 0PzSp ]  
aZ#FKp^8H  
private void mergeSort(int[] data, int[] temp, int l, int r) { *?)MJ@  
int i, j, k; m`yvZ4K!  
int mid = (l + r) / 2; lriezI  
if (l == r) n,N->t$i  
return; -y`Pm8  
if ((mid - l) >= THRESHOLD) Q*DT" W/0  
mergeSort(data, temp, l, mid); c_/BS n  
else ]RVu[k8  
insertSort(data, l, mid - l + 1); |t,sK aL  
if ((r - mid) > THRESHOLD) 7)?C+=,0  
mergeSort(data, temp, mid + 1, r); <)qa{,GX\  
else P1#g{f  
insertSort(data, mid + 1, r - mid); 7Cz~nin>7  
Yuv(4a<M%  
for (i = l; i <= mid; i++) { G[64qhTC  
temp = data; Gu;40)gm  
} vYgJu-Sl  
for (j = 1; j <= r - mid; j++) { TWP@\ BQ  
temp[r - j + 1] = data[j + mid]; NdK`-RT  
} WowKq0sn  
int a = temp[l]; X3:1KDVsV  
int b = temp[r]; o&JoeKXor  
for (i = l, j = r, k = l; k <= r; k++) { 1+%UZK= K  
if (a < b) { GM|& ,}  
data[k] = temp[i++]; ak7%  
a = temp; c <TEA  
} else { R|?n  
data[k] = temp[j--]; j{C~wy!J  
b = temp[j]; '}cSBbl&/n  
} q <}IO  
} 2;)IBvK  
} 5Tn<  
Bg|d2,im  
/** fTxd8an{  
* @param data ,='Ihi  
* @param l Q Xd`P4a  
* @param i *q}yfa35eR  
*/ f6r!3y  
private void insertSort(int[] data, int start, int len) { Tv%7=P;r  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); r CJ$Pl9R  
} {$S"S j  
} [8u9q.IZ  
} )U/Kz1U  
} enk`I$Xx  
N8]DzE0%  
堆排序: %[XP}L$  
jV% VN  
package org.rut.util.algorithm.support; +9/K|SB{ $  
D;sG9Hky  
import org.rut.util.algorithm.SortUtil; G}U <^]c  
7-3  
/** Q g/Rw4[  
* @author treeroot S{llpp{E  
* @since 2006-2-2 @ 5d^ C  
* @version 1.0 gY+d[3N  
*/ (-ELxshd  
public class HeapSort implements SortUtil.Sort{ @@ j\OR  
\7\sx:!$  
/* (non-Javadoc) h<L_ =)lH  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Up Z 9g"  
*/ +*OAClt+]  
public void sort(int[] data) { 7a[6@  
MaxHeap h=new MaxHeap(); jd]L}%ax  
h.init(data); "%K'~"S#Q,  
for(int i=0;i h.remove(); V;^-EWNj  
System.arraycopy(h.queue,1,data,0,data.length); OcB&6!1u  
} 0L;,\&*u  
@Ez>?#z  
private static class MaxHeap{ {~&]  
r@JMf)a]  
void init(int[] data){ oW OR7)?r  
this.queue=new int[data.length+1]; R(t%/Hvs$  
for(int i=0;i queue[++size]=data; e@c8Ce|0  
fixUp(size);  /$93#$  
} !bzWgD7j  
} '*[7O2\%/  
:@p]~{m:G  
private int size=0; dkC_Sh{  
>'n[B    
private int[] queue; O0y0'P-rJq  
Wrbv<8}%c  
public int get() {  Ju5Dd\  
return queue[1]; _W@sFv%sj  
} gHgqElr(  
'h ?  
public void remove() { E9Kp=3H  
SortUtil.swap(queue,1,size--); ,or;8aYc#  
fixDown(1); YS4"TOFw  
} =f@71D1  
file://fixdown J_a2DM6d  
private void fixDown(int k) { LQqba4$  
int j; ;7[DFlS\P  
while ((j = k << 1) <= size) { l_2Xao$  
if (j < size %26amp;%26amp; queue[j] j++; wBlE!Pm  
if (queue[k]>queue[j]) file://不用交换 "z6p=B"?3  
break; o^5UHFxTCB  
SortUtil.swap(queue,j,k); +dCR$<e9r  
k = j; r:rPzq1  
} f:nXE&X[  
} ;"f9"  
private void fixUp(int k) { pVl7] _=m  
while (k > 1) { ys)  
int j = k >> 1; 7aRy])x  
if (queue[j]>queue[k]) ']Czn._  
break; 0(C[][a*u  
SortUtil.swap(queue,j,k);  vWW Q/^  
k = j; d:Z|It  
} BGNZE{K4"  
} )4o k@^.  
z$Z%us>io  
} 8\)4waz$  
P;7[5HFF  
} MB5V$toC  
M~X~2`fFH  
SortUtil: )MV `'i  
$Q|6W &?[;  
package org.rut.util.algorithm; kQ[23  
<,*w$  
import org.rut.util.algorithm.support.BubbleSort; #cikpHLXG  
import org.rut.util.algorithm.support.HeapSort; ?t;,Nk`jx  
import org.rut.util.algorithm.support.ImprovedMergeSort; 0m4#{^Y  
import org.rut.util.algorithm.support.ImprovedQuickSort; 9e;{o,r@  
import org.rut.util.algorithm.support.InsertSort; cri-u E?  
import org.rut.util.algorithm.support.MergeSort; %h_N%B$7c1  
import org.rut.util.algorithm.support.QuickSort; uw>y*OLU+  
import org.rut.util.algorithm.support.SelectionSort; wlwgYAD  
import org.rut.util.algorithm.support.ShellSort; -hK^*vJ  
hZ>1n&[ @  
/** 3ug>,1:6-  
* @author treeroot W9GjUswv!  
* @since 2006-2-2 pBVzmQF  
* @version 1.0 gxDyCL$h3  
*/ ^MWp{E  
public class SortUtil { HT_nxe`E  
public final static int INSERT = 1; ;%AY#b4m  
public final static int BUBBLE = 2; 5M%)*.Y 3[  
public final static int SELECTION = 3; -t*P=V|@  
public final static int SHELL = 4; N]I::  
public final static int QUICK = 5; 4SkCV  
public final static int IMPROVED_QUICK = 6; efyGjfoO  
public final static int MERGE = 7; Z1\=d=  
public final static int IMPROVED_MERGE = 8; =`qEwA  
public final static int HEAP = 9; Tn'o$J  
_k)EqPYu@  
public static void sort(int[] data) { [xDn=)`{V  
sort(data, IMPROVED_QUICK); ;%/}(&E2  
} 7Zh#7jiZ`  
private static String[] name={ %pxHGO=)E  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" RHI?_gf&  
}; ;3 =RM\  
7$kTeKiP  
private static Sort[] impl=new Sort[]{ \NL*$SnxP  
new InsertSort(), o3:h!(#G  
new BubbleSort(), K &G  
new SelectionSort(), _10I0Z0  
new ShellSort(), \uOR1z  
new QuickSort(), aslb^  
new ImprovedQuickSort(), fc^d3wH0L  
new MergeSort(), D' h%.  
new ImprovedMergeSort(), |zp}u(N  
new HeapSort() fTI~wF8!  
}; )4FW~o<i  
\2 [  
public static String toString(int algorithm){ {%v{iE>  
return name[algorithm-1]; U5;Y o+z  
} j-/F *P  
Ix.Y_}  
public static void sort(int[] data, int algorithm) { q:P44`Aq  
impl[algorithm-1].sort(data); ^}Gu'!z9D  
} !h+VbZ  
810uxw{\  
public static interface Sort { MJcWX|(y  
public void sort(int[] data); u/HNXJ7M`9  
} e~G um  
Nj}-"R\u  
public static void swap(int[] data, int i, int j) { !?GW<Rh  
int temp = data; 0PJ7o#}_{@  
data = data[j]; ga|-~~  
data[j] = temp; a_Z[@W  
} RA:3ZV  
} %H7H0 %qW  
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
温馨提示:欢迎交流讨论,请勿纯表情、纯引用!
认证码:
验证问题:
10+5=?,请输入中文答案:十五