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
  • 6418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。 GXk |p8  
插入排序: ?o`:V|<v  
R](cko=  
package org.rut.util.algorithm.support; }#2(WHf =<  
6y "]2UgQk  
import org.rut.util.algorithm.SortUtil; 8C? E1fH\  
/** ;U$Rd,T4S  
* @author treeroot p>f ?Rw_  
* @since 2006-2-2 !]5V{3  
* @version 1.0 17`-eDd  
*/ ?*[35XUd  
public class InsertSort implements SortUtil.Sort{ hd,O/-m#  
 4CtWEq  
/* (non-Javadoc) u?rX:KkS  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fdHFSnQ g  
*/ bR1Q77<G\  
public void sort(int[] data) { 7F_N{avr  
int temp; Z$r7Hi  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ur7S K(#  
} <:&{c-f/  
} FUZuS!sJ  
} R,BINp  
h(GSM'v  
} ,b5vnW\  
IxG7eX!  
冒泡排序: )/Gi-::  
dc_2nF  
package org.rut.util.algorithm.support; P RNq8nmxC  
)]LP8 J&  
import org.rut.util.algorithm.SortUtil; /{P-WRz>  
j,SZJ{ebXg  
/** yqtaQ0F~  
* @author treeroot a8G<x <  
* @since 2006-2-2 7TU xdI  
* @version 1.0 1 .[OS  
*/ 1*'gaa&y  
public class BubbleSort implements SortUtil.Sort{ 9g'6zB  
US"UkY-\  
/* (non-Javadoc) BjfTt:kY  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Ra6}<o  
*/ rZ)7(0BBs  
public void sort(int[] data) { )D)4=LJ  
int temp; |/$954Hr#<  
for(int i=0;i for(int j=data.length-1;j>i;j--){ RTDplv; ]  
if(data[j] SortUtil.swap(data,j,j-1); "zzb`T[8  
} ~=t9-AF-  
} pSEaE9AX%  
} SSyARR+;c  
} 'cAS>s"$}V  
;j[:tt\k  
} 9'e<{mlM  
 =zDvZ(5  
选择排序: ):nC%0V  
Xy`'h5  
package org.rut.util.algorithm.support; R3LIN-g(  
ZR"qrCSw`  
import org.rut.util.algorithm.SortUtil; fC[~X[H  
:7JP(j2  
/** Z c#Jb  
* @author treeroot !, rF(pz  
* @since 2006-2-2 D~|q^Ms,%  
* @version 1.0 fZLAZMrM  
*/ 8<32(D{  
public class SelectionSort implements SortUtil.Sort { B-"F67:  
+(z[8BJl  
/* YfMs~}h,  
* (non-Javadoc) ue4 {h  
* t<$J 3h/"  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;O 5Iu  
*/ wehiX7y  
public void sort(int[] data) { Twr,O;*u=  
int temp; [-81s!#mkw  
for (int i = 0; i < data.length; i++) { W^S]"N0u  
int lowIndex = i; NS TO\36  
for (int j = data.length - 1; j > i; j--) { }_mMQg2>=  
if (data[j] < data[lowIndex]) { -w8?Ur1x:  
lowIndex = j; L/%{,7l<^?  
} h?} S|>9  
}  -)KNsW  
SortUtil.swap(data,i,lowIndex); opu)9]`z  
} 1jAuW~  
} eNM"e-  
2+p XtP@O  
} w>}n1Nc$G  
rY1jC\  
Shell排序: @xso{$z?j  
eb6y-TwY  
package org.rut.util.algorithm.support; ^gNbcWc7CU  
~?)y'?  
import org.rut.util.algorithm.SortUtil; 0ia-D`^me  
v6E5#pse8  
/** ]1|7V|N6  
* @author treeroot \q24E3zS&  
* @since 2006-2-2 rSm#/)4A  
* @version 1.0 gQ%mVJB{(  
*/ II[-6\d!  
public class ShellSort implements SortUtil.Sort{ Ge=\IAj  
hx/A215L  
/* (non-Javadoc) b^()[4M;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {a9.0N:4  
*/ ~ahu{A4Bw  
public void sort(int[] data) { 0dI7{o;<|  
for(int i=data.length/2;i>2;i/=2){ ,OP\^  
for(int j=0;j insertSort(data,j,i); "?W8 o[c+  
} !x||ObW\H  
} ! L3|5:j  
insertSort(data,0,1); bki:u  
} F[0~{*/|G  
&Fjyi"8(r  
/** =}u?1~V  
* @param data A{T> Aac  
* @param j cS@p`A7Tpo  
* @param i -Ekf T_  
*/ PlgpH'z4$  
private void insertSort(int[] data, int start, int inc) { J~ +p7S  
int temp; fD8GAav  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); k)y<iHR_o  
} A1z<2.R  
} Y$j !-l5z  
} [ :Sl~  
[D<(xr&N%  
} 8,VEuBZ  
=)N6 R  
快速排序: / T_v8 {D  
O`N,aYo  
package org.rut.util.algorithm.support; EaH/Gg3  
:!fY;c?  
import org.rut.util.algorithm.SortUtil; 1]A\@(  
G Uh<AG*+  
/** V%C'@m(/SZ  
* @author treeroot ~3-+~y=o~  
* @since 2006-2-2 ?[WUix;  
* @version 1.0 -yu$Mm  
*/ P=y1qqC  
public class QuickSort implements SortUtil.Sort{ 3Q)"  
U7,.L  
/* (non-Javadoc) `bn@;7`X  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |%3>i"Y@AK  
*/ 4$ah~E>,t  
public void sort(int[] data) { YdB/s1|G  
quickSort(data,0,data.length-1); MI.OOoP3a  
} |S]fs9  
private void quickSort(int[] data,int i,int j){ 73{<;z}i  
int pivotIndex=(i+j)/2; b.}J'?yLm  
file://swap D$w?  
SortUtil.swap(data,pivotIndex,j); -$@'@U  
Ywcgt|  
int k=partition(data,i-1,j,data[j]); q6%m .X7  
SortUtil.swap(data,k,j); t+^__~IX  
if((k-i)>1) quickSort(data,i,k-1); Pi,86?  
if((j-k)>1) quickSort(data,k+1,j); ^% Ln@!P  
~(`MP<  
} x8wsx F  
/** w^7[4u4  
* @param data (hRg0Z=  
* @param i 1 .o0"  
* @param j sqRvnCD!  
* @return d?cCSf  
*/ S T4[d'|j  
private int partition(int[] data, int l, int r,int pivot) { t~qAA\p}o  
do{ IEI&PRD  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 1,we: rwX  
SortUtil.swap(data,l,r); cA| n*A-j<  
} }wJH@'0+  
while(l SortUtil.swap(data,l,r); 55,2eg#{O  
return l; %/!f^PIwX  
} !RjC0,  
9 OlJC[  
} ?/~Q9My  
lACS^(  
改进后的快速排序: kn`O3cW/  
#&z'?x^a  
package org.rut.util.algorithm.support; g"g3|$#Ej|  
] {0OPU  
import org.rut.util.algorithm.SortUtil; SK*<H~2  
P$@:T[}v  
/** ldRq:M5z  
* @author treeroot 9c5DEq  
* @since 2006-2-2 &k`lb kq  
* @version 1.0 EYn9l n_]u  
*/ )<e,-XujY  
public class ImprovedQuickSort implements SortUtil.Sort { ws U@hqS  
n S Vr,wU  
private static int MAX_STACK_SIZE=4096; J$`5KbT3  
private static int THRESHOLD=10; F& lSRL+v  
/* (non-Javadoc) q!Z{qt*`um  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) u_o] \D~  
*/ '?3(&  
public void sort(int[] data) { y7'9KQ  
int[] stack=new int[MAX_STACK_SIZE]; Sg\+al7  
SxkY ;^-U  
int top=-1; &7{yk$]*  
int pivot; lt\Bm<"z!1  
int pivotIndex,l,r; &F'n >QT9q  
p>+Q6o9O  
stack[++top]=0; B@' OUcUR  
stack[++top]=data.length-1; F9r|EU#;  
'S9jMyZrZ  
while(top>0){ %"|W qxv  
int j=stack[top--]; sn'E}.uhXH  
int i=stack[top--]; ' wp _U /  
"wxyY^"  
pivotIndex=(i+j)/2; uOh  
pivot=data[pivotIndex]; LF+E5{=:R  
a?X@ D<.;  
SortUtil.swap(data,pivotIndex,j); V%`\x\Xat  
Ac}5,  
file://partition H}8kku>7  
l=i-1; n9Vr*RKM)  
r=j; `y{[e j  
do{ DJ1!Xuu  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); /7ykmW  
SortUtil.swap(data,l,r); $9W,1wg  
} iRV=I,  
while(l SortUtil.swap(data,l,r); QQ %W3D @  
SortUtil.swap(data,l,j); crgVedx~}  
UH((d*HX4  
if((l-i)>THRESHOLD){ ^pqJz^PO.  
stack[++top]=i; Q4g69IE  
stack[++top]=l-1; Y+0GJuBf  
} g?u=n`k]\  
if((j-l)>THRESHOLD){ FU)=+m  
stack[++top]=l+1; E[FE-{B#  
stack[++top]=j; KvO5-g  
} @z=L\ e{  
f$--y|=  
} :edy(vC<  
file://new InsertSort().sort(data); tNYuuC%N  
insertSort(data); B!4~A{  
} L}K8cB  
/** NuXII-  
* @param data &&zsUAkS  
*/ R^INl@(O  
private void insertSort(int[] data) { #K/95!)  
int temp; |:L}/onK  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); v"_E0 3!  
} N]F}Z#h  
} ku#WQL  
} M5N #xgR  
]UGk"s5A  
} ~*e@^Nv)v  
X]=8Oa  
归并排序: RxVZn""  
HI[Pf%${  
package org.rut.util.algorithm.support; WfYG#!}x  
a/[)A _-  
import org.rut.util.algorithm.SortUtil; l;B  
'k[vcnSz\/  
/** ,G[Y< ~Hy  
* @author treeroot a&7uRR26  
* @since 2006-2-2  _ Ewkb  
* @version 1.0 &7r a  
*/ TK0W=&6#A  
public class MergeSort implements SortUtil.Sort{ OMBH[_  
oFsV0 {x%)  
/* (non-Javadoc) ju1B._48  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) F'T.-lEO_d  
*/ X3?RwN:P  
public void sort(int[] data) { Zb:Z,O(vn  
int[] temp=new int[data.length]; D[Q/:_2l  
mergeSort(data,temp,0,data.length-1); 2G_]Y8  
} /-+hMYe  
7j88^59  
private void mergeSort(int[] data,int[] temp,int l,int r){ Z,V<&9a;  
int mid=(l+r)/2; K87yQOjPv  
if(l==r) return ; F?qg?1v B|  
mergeSort(data,temp,l,mid); RNt9Qdr4y  
mergeSort(data,temp,mid+1,r); '($$-P\/  
for(int i=l;i<=r;i++){ *JZlG%z  
temp=data; vx}BT H  
} 7;pQ'FmZJ  
int i1=l; b Rr3:"=sE  
int i2=mid+1; @gw8r[  
for(int cur=l;cur<=r;cur++){ I__ a}|T%  
if(i1==mid+1) M C y~~DL  
data[cur]=temp[i2++]; e%IbM E]x  
else if(i2>r) jsP+,brO  
data[cur]=temp[i1++]; m^w{:\p  
else if(temp[i1] data[cur]=temp[i1++]; w: mm@8N  
else hoLA*v2<  
data[cur]=temp[i2++]; 3PlIn0+LX  
} ?%n"{k?#  
} R*2F)e\|  
R \]C;@J<  
} \9`.jB~<  
FrE#l.)?!  
改进后的归并排序: JEF;Q  
x~K79Mya  
package org.rut.util.algorithm.support; #7KR`H  
?-tNRIPW@p  
import org.rut.util.algorithm.SortUtil; D  ,[yx='  
+=sw&DH  
/** I+31:#d  
* @author treeroot 7m}fVLk  
* @since 2006-2-2 "]OROJGa  
* @version 1.0 9TwKd0AT$&  
*/ M`E}1WNQ?]  
public class ImprovedMergeSort implements SortUtil.Sort { 5Vai0Qfcu:  
Qj$w7*U  
private static final int THRESHOLD = 10; 0E)M6 jJ  
nj1PR`AE  
/* ,H1K sN  
* (non-Javadoc) (6b0rqPF  
* ~YByyJG   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p|@#IoA/e  
*/ N|3#pHm@  
public void sort(int[] data) { }$ Kd-cj+  
int[] temp=new int[data.length]; kI2+&  
mergeSort(data,temp,0,data.length-1); Ejnk\8:  
} '8(UiB5d  
e3?z^AUXm  
private void mergeSort(int[] data, int[] temp, int l, int r) { wuM'M<J@  
int i, j, k; RE4WD9n  
int mid = (l + r) / 2; qh6rMqq  
if (l == r) NK'@.=$  
return; Sh?eb  
if ((mid - l) >= THRESHOLD) k|{ 4"4r  
mergeSort(data, temp, l, mid); /_YTOSZjm  
else 1U?5/Ja  
insertSort(data, l, mid - l + 1); dGz4`1(>  
if ((r - mid) > THRESHOLD) ]wi0qc2 {  
mergeSort(data, temp, mid + 1, r); 4Z5;y[k(  
else ]&dPY[~,/i  
insertSort(data, mid + 1, r - mid); ;>S|?M4GZ  
(/s~L*gF{  
for (i = l; i <= mid; i++) { be$']}cP  
temp = data; 9A/bA|$  
} &I%E8E  
for (j = 1; j <= r - mid; j++) { }D.\2x(J  
temp[r - j + 1] = data[j + mid]; X5)(,036  
} SpYmgL?wJ  
int a = temp[l]; FZIC |uz  
int b = temp[r]; i% , 't  
for (i = l, j = r, k = l; k <= r; k++) { xLfv:Rp  
if (a < b) { b*/Mco 9O  
data[k] = temp[i++]; #=;vg  
a = temp; /Gn0|]KI  
} else { DIJmISk  
data[k] = temp[j--]; )dh`aQ%N "  
b = temp[j]; B< HN$/  
} L&~'SC  
} %wI)uJ2  
} _pDfPLlY&  
u?H.Z  
/** 67 ~pn  
* @param data xA`j:zn'j  
* @param l FCWk8/  
* @param i yqVoedN  
*/ ),[@NK&=  
private void insertSort(int[] data, int start, int len) { `xx3JQv[  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 5&O%0`t  
} Y=g]\%-PB  
} /7fd"U$Lh  
} '@Yp@ _  
} zqBzataR:  
|I29m`  
堆排序: =Y5m% ,Bq  
-GM"gkz  
package org.rut.util.algorithm.support; u[oV Jvc  
T7Y}v,+-  
import org.rut.util.algorithm.SortUtil; ~*9Ue@  
hJD3G |E  
/** o)]O  
* @author treeroot _:WNk(  
* @since 2006-2-2 x+;y0`oL  
* @version 1.0 scYqU7$%T  
*/ 8R:Glif  
public class HeapSort implements SortUtil.Sort{ O0s!3hKu  
y n_.  
/* (non-Javadoc) j>uu3ADd2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M_ >kefr  
*/ >/lB%<$/  
public void sort(int[] data) { 8FZC0j.^DH  
MaxHeap h=new MaxHeap(); s@{~8cHgU  
h.init(data); .N@+Ms3  
for(int i=0;i h.remove(); /y6f~F  
System.arraycopy(h.queue,1,data,0,data.length); k7;i^$@c  
} /wl]kGF  
Px Gw5:  
private static class MaxHeap{ >(wQx05^D  
VJFFH\!`  
void init(int[] data){ r| )45@  
this.queue=new int[data.length+1]; +8x_f0 <  
for(int i=0;i queue[++size]=data; DvB{N`COd  
fixUp(size); '$EyVu!  
} SMJRoK3  
} Jj 5VBI!Ok  
 S~E@A.7  
private int size=0; { 0&l*@c&  
<VutwtA  
private int[] queue; s{8=Q0^  
ZoSyc--Bv  
public int get() { :FfEjNil  
return queue[1]; f}p`<z   
} 4d}=g]P  
/f Q}Ls\  
public void remove() { ".waCt6  
SortUtil.swap(queue,1,size--); +^&i(7a[?  
fixDown(1); kS=nH9  
} dUt4] ar  
file://fixdown ]!@=2kG4  
private void fixDown(int k) { RA[%8Rh)  
int j; 12m-$/5n+  
while ((j = k << 1) <= size) { X!mJUDzh]  
if (j < size %26amp;%26amp; queue[j] j++; u[Si=)`VPk  
if (queue[k]>queue[j]) file://不用交换 5]upfC6  
break; ~zG)<S"q  
SortUtil.swap(queue,j,k); nE*S3  
k = j; p<#aXs jy  
} lX)AbK]nb  
} k?TZY|_  
private void fixUp(int k) { Y6Cm PxOQ  
while (k > 1) { oP%5ymL%J  
int j = k >> 1; TI/RJF b  
if (queue[j]>queue[k]) &v t)7[  
break; HGh -rEh  
SortUtil.swap(queue,j,k); H{,1-&>|  
k = j; )S 4RR2Q>  
} :z&kbG  
} }+G5i_a  
~ {yy{  
} 80'@+AD  
X0-PJ-\aD@  
} xkiiQs)  
}^$1<GT  
SortUtil: *Egg*2P;"Q  
L8!yP.3   
package org.rut.util.algorithm; 1"75+Q>D  
W=w]`'  
import org.rut.util.algorithm.support.BubbleSort; kGo2R]Dd[  
import org.rut.util.algorithm.support.HeapSort; PREGQ0  
import org.rut.util.algorithm.support.ImprovedMergeSort; dE_"|,:  
import org.rut.util.algorithm.support.ImprovedQuickSort; )h&@}#A09  
import org.rut.util.algorithm.support.InsertSort; doHE]gC2Uz  
import org.rut.util.algorithm.support.MergeSort; vmrs(k "d#  
import org.rut.util.algorithm.support.QuickSort; {*TB }Xsr,  
import org.rut.util.algorithm.support.SelectionSort; -m=A1~|7  
import org.rut.util.algorithm.support.ShellSort; yiI oqvP  
{wj%WSQj/y  
/** B["+7\c<~  
* @author treeroot strM3j##x  
* @since 2006-2-2 fCF.P"{W"  
* @version 1.0 X&LJ"ahK  
*/ W;2J~V!c  
public class SortUtil { Sw,*#98  
public final static int INSERT = 1; 58HA*w  
public final static int BUBBLE = 2; GD]epr%V  
public final static int SELECTION = 3; ;-@: }/  
public final static int SHELL = 4; fpf,gb8[$n  
public final static int QUICK = 5; 5QuRwu_  
public final static int IMPROVED_QUICK = 6; f$kbb 6juL  
public final static int MERGE = 7; G'#u!<(^h  
public final static int IMPROVED_MERGE = 8; fRLA;1va  
public final static int HEAP = 9; +hr|$  
l!Xj UnRF  
public static void sort(int[] data) { Ky,upU  
sort(data, IMPROVED_QUICK); `PL}8ydZ  
} ng9e)lU~*b  
private static String[] name={ ]= %qm;  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" buN@O7\  
}; 8 b~  
O65`KOPn  
private static Sort[] impl=new Sort[]{ yq[/9PciA  
new InsertSort(), 9RHDkK{5  
new BubbleSort(), ^Cp2#d*  
new SelectionSort(), N\B&|;-V  
new ShellSort(), Xb>SA|6[|  
new QuickSort(), H1B%}G*Ir-  
new ImprovedQuickSort(), 0E!-G= v  
new MergeSort(), `'<$N<!  
new ImprovedMergeSort(), 5R~M@   
new HeapSort() 5$'[R ;r  
}; 1G5AL2  
G~(\N?2  
public static String toString(int algorithm){ `x#S. b  
return name[algorithm-1]; .24z+|j  
} -V}xvSVg  
Kc2y  
public static void sort(int[] data, int algorithm) { E z}1Xse  
impl[algorithm-1].sort(data); f7\X3v2W}3  
} X5VNj|IE  
+~iiy;i(  
public static interface Sort { ox&? `DO  
public void sort(int[] data); eS@j? Y0y  
} F I[BZZW  
QY&c=bWAX"  
public static void swap(int[] data, int i, int j) { @W/k}<07  
int temp = data; p|A ?F0  
data = data[j]; JN+7o h]u  
data[j] = temp; Kmaz"6A  
} l~o!(rpX  
} [>54?4{|.  
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