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
  • 5894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。 1_G+sDw$  
插入排序: Ek '% % %  
;#7:}>}rO  
package org.rut.util.algorithm.support; id/y_ekfP  
O*Z -3 l  
import org.rut.util.algorithm.SortUtil; *uF Iw}C/  
/** t0 T#Xb  
* @author treeroot R>,_C7]u  
* @since 2006-2-2 uN$ <7KB"  
* @version 1.0 qp/nWGj  
*/ P_ b8_ydU  
public class InsertSort implements SortUtil.Sort{ #5^S@}e  
(%{!TJgZR  
/* (non-Javadoc) >5Sm.7}R  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @^b>S6d "  
*/ u4[rA2Bf8E  
public void sort(int[] data) { YXGxE&!  
int temp; 1(Lq9hs`  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); /8lmNA  
} + a'nP=e&  
} $,1KD3;+]  
} nA+gqY6 6|  
In}~bNv?  
} ;O({|mpS\  
=>xyJ->R  
冒泡排序: ,WS{O6O7  
e~$aJO@B.R  
package org.rut.util.algorithm.support; ban;HGGNG{  
0-Wv$o[  
import org.rut.util.algorithm.SortUtil; v&"sTcS|  
tSunO-\y  
/** HU-#xK  
* @author treeroot :2;c@ uj  
* @since 2006-2-2 u9ue>I /  
* @version 1.0 PkF'#W%  
*/ /I0}(;^y  
public class BubbleSort implements SortUtil.Sort{ %nj{eT  
<\?dPRw2>  
/* (non-Javadoc) eXtlqU$  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H$)otDOE  
*/ ET~^P  
public void sort(int[] data) { E,|OMK#   
int temp; F^7qr  
for(int i=0;i for(int j=data.length-1;j>i;j--){ K`kWfPwp  
if(data[j] SortUtil.swap(data,j,j-1); .wcKG9u  
} q>VvXUyK,  
} ? UBE0C  
} 5Yx 7Q:D  
} p@+D$  
eg>]{`WQ  
} oD%B'{Zs4  
ztV%W6  
选择排序: ^FK-e;J  
/6#i$\ j  
package org.rut.util.algorithm.support; 2S-z$Bi}]  
\Jr7Hy1;  
import org.rut.util.algorithm.SortUtil; OJ)XJL  
o 0H.DeP  
/** C.hRL4+;Zm  
* @author treeroot ajD/)9S  
* @since 2006-2-2 !l1jQq_mK  
* @version 1.0 }9Awv#+  
*/ j$khGR!  
public class SelectionSort implements SortUtil.Sort { 6b h.5|  
e|.a%,Dcy  
/* +Pb@@C&  
* (non-Javadoc) l gTw>r   
* n`|CD Kb  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?4lEHef  
*/ bU_P@GKB  
public void sort(int[] data) { Hr=?_Un"  
int temp; x7c#kU2A&Z  
for (int i = 0; i < data.length; i++) { IlMst16q5  
int lowIndex = i; Ny 7vId  
for (int j = data.length - 1; j > i; j--) { ^e1mK4`  
if (data[j] < data[lowIndex]) { #(r1b'jfP  
lowIndex = j; lC=T{rR  
} p~Mw^SN'  
} 1tFx Z#(G  
SortUtil.swap(data,i,lowIndex); ROr|  <  
} biAa&   
} {tF)%>\#  
e&F=w`F\  
} vA0f4W 8+  
RVa{%   
Shell排序: EdS7m,d  
+ :k"{I   
package org.rut.util.algorithm.support; -|/*S]6kK  
0J 1&6b  
import org.rut.util.algorithm.SortUtil; MF4B 2d  
r$;u4FR  
/** C'fQ Z,r-v  
* @author treeroot DV jsz  
* @since 2006-2-2 J8PZVeWx  
* @version 1.0 }wV/)Oy[  
*/ lgh+\pj  
public class ShellSort implements SortUtil.Sort{ 3b1%^@,ACy  
ci{WyIh  
/* (non-Javadoc) xU$15|ny  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) '=>l& ;  
*/ ug9]^p/)^  
public void sort(int[] data) { JS0957K  
for(int i=data.length/2;i>2;i/=2){ EL1*@  
for(int j=0;j insertSort(data,j,i); o\:vxj+%*  
} (:ij'Zbz  
} }1Km h]  
insertSort(data,0,1); ~DUOL ~E  
} `Bv, :i  
')~[J$qz  
/** l=^^l`  
* @param data ]YwvwmZ  
* @param j 2B=+p83<  
* @param i ,:?=j80m  
*/ S)G*+)  
private void insertSort(int[] data, int start, int inc) { 7N[Cs$_]  
int temp; T+)#Du  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 9l:vVp7Uk  
} TDHS/"MbA7  
} hZeF? G)L'  
} 4F?O5&329i  
6yXMre)YV  
} Mg=R**s1x%  
GQ= Pkko  
快速排序: 8Z(\iZ5Rgj  
~`o%Y"p%rv  
package org.rut.util.algorithm.support; uZ(,7>0  
eLN[`hJ  
import org.rut.util.algorithm.SortUtil; E#mpj~{-  
%vjfAdC  
/** A7sva@}W  
* @author treeroot UpCkB}OhR1  
* @since 2006-2-2 F}=O Mo:.  
* @version 1.0 ;v> +D {s  
*/ WEk3 4crk  
public class QuickSort implements SortUtil.Sort{ ;q%V)4  
PgwNEwG  
/* (non-Javadoc) gL6.,4q+1  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Gque@u  
*/ :A]CD (  
public void sort(int[] data) { @y{ f>nm  
quickSort(data,0,data.length-1); s f<NC>-  
} Cc!LJ  
private void quickSort(int[] data,int i,int j){ %pr}Xs(-f  
int pivotIndex=(i+j)/2; C+Pw  
file://swap lsRW.h,  
SortUtil.swap(data,pivotIndex,j); +"Mlj$O  
HWi: CDgm  
int k=partition(data,i-1,j,data[j]); H0Ck%5  
SortUtil.swap(data,k,j); /7p1y v  
if((k-i)>1) quickSort(data,i,k-1); w.R2' W R  
if((j-k)>1) quickSort(data,k+1,j); ETtoY<`#  
&Vmx<w  
} 2N}h<Yd 9  
/** +pJ~<ug]  
* @param data udGZ%Mr_  
* @param i qq[Enf|/y  
* @param j vy1N, 8a  
* @return R#Hz%/:|A  
*/ @[w.!GW%  
private int partition(int[] data, int l, int r,int pivot) { glgXSOj  
do{ -{s9PZ3~_  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); XT~]pOE;D  
SortUtil.swap(data,l,r); ~mYCXfoc{  
} 299uZz}Y  
while(l SortUtil.swap(data,l,r); %n:ymc $}  
return l; pl5Q2zq%  
} @rt}z+JF  
W,sPg\G 3  
} UWg+7RL  
<%EjrjdvL+  
改进后的快速排序: C+X- Cp  
6eHw\$/  
package org.rut.util.algorithm.support; u^]Z{K_B  
!:9s>0';N  
import org.rut.util.algorithm.SortUtil; Q[UYNQ0w  
X(fT[A_2C  
/** _"'0^F$I  
* @author treeroot C&-]RffA  
* @since 2006-2-2 H"J>wIuGX  
* @version 1.0 Ur2) ];WZ  
*/ 73>Hzpv0  
public class ImprovedQuickSort implements SortUtil.Sort { 1n )&%r  
9Ts rg  
private static int MAX_STACK_SIZE=4096; LXx`Vk>ky  
private static int THRESHOLD=10; -x2&IJ!  
/* (non-Javadoc) ]8ob`F`m,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) vC ISd   
*/ *d$r`.9j  
public void sort(int[] data) { `Uy'YfYF  
int[] stack=new int[MAX_STACK_SIZE]; OIdoe0JR:O  
/F7X"_(H  
int top=-1; +U*:WKdI?  
int pivot; '"fZGz?  
int pivotIndex,l,r; D}A>`6W<  
rwvCp_pN.  
stack[++top]=0; cux<7#6af  
stack[++top]=data.length-1; v.Zr,Z=eV  
[-'LJG Wb<  
while(top>0){ ^9A,j} >o-  
int j=stack[top--]; |^$?9Dn9.L  
int i=stack[top--]; j<C p&}X  
BewJ!,A!  
pivotIndex=(i+j)/2; k#pNk7;MZ  
pivot=data[pivotIndex]; }ec3qZ@  
<J .-fZS%  
SortUtil.swap(data,pivotIndex,j); h$rk]UM/Q  
f4r)g2Zb[  
file://partition i+eDBg6  
l=i-1; 4'BZ+A,p  
r=j; MgUjB~)Y  
do{ "?#O*x  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Q9NKQuSu  
SortUtil.swap(data,l,r); 1QJB4|5R#  
} @86?!0bt  
while(l SortUtil.swap(data,l,r); QPJz~;V2  
SortUtil.swap(data,l,j); g.d~`R@v  
qhqqCVrsW  
if((l-i)>THRESHOLD){ %hH@< <b(s  
stack[++top]=i; $V2.@ X  
stack[++top]=l-1; h;S?  
} l fJ lXD  
if((j-l)>THRESHOLD){ BhCOT+i;c  
stack[++top]=l+1; X8212[7  
stack[++top]=j; ]d -U  
} `}|$eF&  
`as6IMqJD  
} kl i)6R<  
file://new InsertSort().sort(data); T@x_}a:g  
insertSort(data); wzz> N@|  
} KB6`OT^b{r  
/** ooIA#u  
* @param data ,ou&WI yC  
*/ !;h`J:dN  
private void insertSort(int[] data) {  ua] ?D2  
int temp; iK3gw<g  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); !J-oGs\ u  
} J1gLT $  
} ,%EGM+  
} y(h"0A1lW  
R"V^%z;8o  
} APM!xX=N  
)2mvW1M=7;  
归并排序: xI(Y}>  
Yo;Mexo!  
package org.rut.util.algorithm.support; Ft^+P*  
pIP ^/H  
import org.rut.util.algorithm.SortUtil; @w{"6xc%a  
&JHqUVs^  
/** 2V)qnMxAZJ  
* @author treeroot  j2%?-(U  
* @since 2006-2-2 i*2l4  
* @version 1.0 (4oO8 aBB  
*/ lz88//@gZ  
public class MergeSort implements SortUtil.Sort{ .U9A \$  
J'#R9NO<  
/* (non-Javadoc) vD'YLn%Q  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qF57T>v|  
*/ )9'Zb`n  
public void sort(int[] data) { PWbi`qF)r  
int[] temp=new int[data.length]; odNHyJS0  
mergeSort(data,temp,0,data.length-1); c3q @]|aI  
} [2Ot=t6]  
<`WtP+`  
private void mergeSort(int[] data,int[] temp,int l,int r){ #8;#)q_[u  
int mid=(l+r)/2; WpPI6bd  
if(l==r) return ; MMS#Ci=Lj  
mergeSort(data,temp,l,mid); | +r5D4]e  
mergeSort(data,temp,mid+1,r); -5TMV#i {  
for(int i=l;i<=r;i++){ T }^2IJ]  
temp=data; TU}. /b@F  
} 8PtX@s43\  
int i1=l; BFH=cs  
int i2=mid+1; tX7TP(  
for(int cur=l;cur<=r;cur++){ _l||69|.  
if(i1==mid+1) !y syb  
data[cur]=temp[i2++]; {H[3[  
else if(i2>r) "?SR+;Y:q  
data[cur]=temp[i1++]; UV j1nom   
else if(temp[i1] data[cur]=temp[i1++]; -P[bA0N,  
else "pW@[2Dkx/  
data[cur]=temp[i2++]; TSHH=`cx  
} Z&Ao;=Gp1  
} A!.* eIV|  
F|&=\Q  
} (X(c.Jj  
<Z^qBM  
改进后的归并排序: +U= !svE  
RuuXDuu:VL  
package org.rut.util.algorithm.support; V07? sc<  
1H]E:Bq  
import org.rut.util.algorithm.SortUtil; B#Z-kFn@  
'Bb@K[=s  
/** /woC{J)4p  
* @author treeroot <N}*|z7=b  
* @since 2006-2-2 ![CF >:e  
* @version 1.0 fS?fNtD6<  
*/ k%fy  
public class ImprovedMergeSort implements SortUtil.Sort { #7yy7Y5  
AagWswv{Bf  
private static final int THRESHOLD = 10; 8j<+ ' R  
9o|#R&0  
/* QQIU5  
* (non-Javadoc) ?QfomTT  
* !|`vW{v  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +KKx\m*  
*/ -|x YT+?%  
public void sort(int[] data) { oq3{q  
int[] temp=new int[data.length]; =as\Tp#d  
mergeSort(data,temp,0,data.length-1); t ?404  
} )o>1=Y`[z  
8w]>SEGFs  
private void mergeSort(int[] data, int[] temp, int l, int r) { g{%2*{;i  
int i, j, k; _rjLCvv-  
int mid = (l + r) / 2; O| zLD  
if (l == r) /aHx'TG  
return; 5'hQ6i8  
if ((mid - l) >= THRESHOLD) wc7F45l4  
mergeSort(data, temp, l, mid); *zn=l+c  
else <=7N2t)s4  
insertSort(data, l, mid - l + 1); K`% I!Br  
if ((r - mid) > THRESHOLD) @!zT+W&  
mergeSort(data, temp, mid + 1, r); cA]Ch>]A%  
else wc6v:,&  
insertSort(data, mid + 1, r - mid); Pu7cL  
At=l>  
for (i = l; i <= mid; i++) { Y\1XKAfB  
temp = data; ` "JslpN  
} KQ\d$fX  
for (j = 1; j <= r - mid; j++) { TDnbX_xC<  
temp[r - j + 1] = data[j + mid]; P2^((c  
} .ugQH<B  
int a = temp[l]; Yt% E,U~g  
int b = temp[r]; <{yQNXf[  
for (i = l, j = r, k = l; k <= r; k++) { 4hh=z>$|l)  
if (a < b) { O)i]K`jk  
data[k] = temp[i++]; </B5^}  
a = temp; Jb4A!g5C  
} else { UZq1qn@+  
data[k] = temp[j--]; *)H&n>"e  
b = temp[j]; Vn1hr;i]  
} Wr+1G 8  
} RIQw+RG >  
} ,) JSX o  
2r~&+0sBP  
/** =-GHs$u%f  
* @param data *zR   
* @param l `*hrU{b  
* @param i baVSQtda  
*/ J)xc mK  
private void insertSort(int[] data, int start, int len) { U& < Nhh  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 61^5QHur  
} "TgE@bC  
} |+0XO?,sZ  
} >HH49 cCo  
} SWGD(]}uz  
%: .{?FB_  
堆排序: Oor&1  
=z$XqT.'  
package org.rut.util.algorithm.support; %95'oW)lo  
U'tfsf/V  
import org.rut.util.algorithm.SortUtil; 0 w#[?.  
30Z RKrW"~  
/** 8Qg,UX  
* @author treeroot )|@ H#kv?  
* @since 2006-2-2 [# '38  
* @version 1.0 0u'qu2mV  
*/ +Eh^j3W  
public class HeapSort implements SortUtil.Sort{ :W\xZ  
+#c3Y ;JP  
/* (non-Javadoc) *Tt*\ O  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \|}dlG  
*/  `=h`:`  
public void sort(int[] data) { iS"(  
MaxHeap h=new MaxHeap(); WhR j@y  
h.init(data); 0H-~-z8Y  
for(int i=0;i h.remove(); {LLy4m  
System.arraycopy(h.queue,1,data,0,data.length); KiJRq>  
} M9/c8zZ  
YIQm;E EG  
private static class MaxHeap{ 8,,$C7"EP  
9O+><x[i  
void init(int[] data){ NZyGC Vh@  
this.queue=new int[data.length+1]; rK\)  
for(int i=0;i queue[++size]=data; :OVre*j  
fixUp(size); jB17]OCN  
} H -sJt:  
} 1.Ximom  
8SGFzb! h  
private int size=0; WYb\vm =r  
v{}i`|~J  
private int[] queue; ZO2$Aan  
cv b:FK  
public int get() { {5=Iu\e  
return queue[1]; bJo)rM :m  
} y@kRJ 8d  
V2I"m  
public void remove() { 4Em mh=A  
SortUtil.swap(queue,1,size--); X&[S.$_U  
fixDown(1); $`Z-,AJc  
} AAr[xo iYp  
file://fixdown 3YG[~o|4  
private void fixDown(int k) { Dg$Z5`%k8  
int j; . _5g<aw;  
while ((j = k << 1) <= size) { V^P]QQ\ )  
if (j < size %26amp;%26amp; queue[j] j++; DB'd9<  
if (queue[k]>queue[j]) file://不用交换 TRl,L5wd-?  
break; e `!PQMLU  
SortUtil.swap(queue,j,k); X4:\Shb97  
k = j; 1jJ>(S  
} nl)!)t=n  
} XA~Cc<v  
private void fixUp(int k) { n4cM /unU  
while (k > 1) { vap,)kILF  
int j = k >> 1; MqBA?7  
if (queue[j]>queue[k]) J2$L[d^  
break; +P?!yH,n  
SortUtil.swap(queue,j,k); >[=fbL@N<@  
k = j; G/nSF:rp  
} ?v-( :OF  
} Gk9Y{  
tSVN}~1\  
} ,m-z D  
?mJNzHrq;  
} cuO)cj]@e  
NW'rqgG  
SortUtil: Q2c|sK8  
W)dQ yZ>J  
package org.rut.util.algorithm; ad "yo=%1  
ieN}Ajl2  
import org.rut.util.algorithm.support.BubbleSort; 8IYn9<L  
import org.rut.util.algorithm.support.HeapSort; Q`"gKBN1  
import org.rut.util.algorithm.support.ImprovedMergeSort; QkXnXu  
import org.rut.util.algorithm.support.ImprovedQuickSort; 9Ij=~p]p  
import org.rut.util.algorithm.support.InsertSort; %T hY6y(  
import org.rut.util.algorithm.support.MergeSort; z+K-aj w  
import org.rut.util.algorithm.support.QuickSort; iNX%Zk[  
import org.rut.util.algorithm.support.SelectionSort; h01 HX  
import org.rut.util.algorithm.support.ShellSort; Fb&Xy{kt1  
e`pYO]Z  
/** Ak`7f$z  
* @author treeroot :Yi1#  
* @since 2006-2-2 @5!Mr5;  
* @version 1.0 y9cDPwi:b  
*/ }fps~R  
public class SortUtil { >+iJ(jqq  
public final static int INSERT = 1; *;Q IAd  
public final static int BUBBLE = 2; b ^wL{q  
public final static int SELECTION = 3; &_-,Nxsf  
public final static int SHELL = 4; l^ P[nQDH  
public final static int QUICK = 5; "<3F[[;~  
public final static int IMPROVED_QUICK = 6; 6>rgoT)6~  
public final static int MERGE = 7; mRe BS  
public final static int IMPROVED_MERGE = 8; si:p98[w  
public final static int HEAP = 9; UEZnd8  
p5|.E  
public static void sort(int[] data) { +FD"8 ^YC  
sort(data, IMPROVED_QUICK); :Ve>tZeW  
} :.863_/  
private static String[] name={ kdVc;v/5  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" _i_^s0J  
}; g.wp }fz  
|JZ3aS   
private static Sort[] impl=new Sort[]{ v~f_~v5J!  
new InsertSort(), #k %$A}9  
new BubbleSort(), &cDLSnR  
new SelectionSort(), Hc`)Q vFRW  
new ShellSort(), UF3g]>*  
new QuickSort(), ~=$0=)c  
new ImprovedQuickSort(), J9!}8uD  
new MergeSort(), j_::#?o!/  
new ImprovedMergeSort(), _4eSDO[h  
new HeapSort() !c}?u_Z/  
}; "gD]K=  
E8_j?X1  
public static String toString(int algorithm){ MKqMH,O  
return name[algorithm-1]; T5* t~`bfU  
} ch|4"&g  
sw<mmayN  
public static void sort(int[] data, int algorithm) { 0(!j]w"r3  
impl[algorithm-1].sort(data); 2YT1]x 3  
} |mx)W}  
9 7/"5i9  
public static interface Sort { =:)p\{B  
public void sort(int[] data); }HO3D.HE^  
} ,8~q nLy9  
'Z(KE2&?  
public static void swap(int[] data, int i, int j) { b.h:~ATgN  
int temp = data; Gjhpi5?%8  
data = data[j]; 'R'P^  
data[j] = temp; Yp*Dd}n`  
} ) qD Ch  
} 7ojU]ly  
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