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
  • 7179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。 ,~1sZ`C  
插入排序: 5}w   
 /d!  
package org.rut.util.algorithm.support; E y9rH_  
$%M]2_W(  
import org.rut.util.algorithm.SortUtil; |v : )9  
/** dKD:mU",M  
* @author treeroot %,<Ki]F  
* @since 2006-2-2 -&]!ig5v  
* @version 1.0 l\Ww^   
*/ D:IG;Rsc  
public class InsertSort implements SortUtil.Sort{ M=&,+#z<V  
/J!:_Nq  
/* (non-Javadoc) @x743}Y\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nN-S5?X#  
*/ P zM yUv  
public void sort(int[] data) { <HN{.p{  
int temp; olL? 6)gC  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 1ZRkVHiz0  
} q &{<HcP  
} X's<+hK&  
} #pK" ^O*!  
S-Bx`e9'  
} i'>5vU0?3  
)cP)HbOd=  
冒泡排序: [eOv fD  
v4'kV:;&  
package org.rut.util.algorithm.support; dkDPze9l  
wsH_pF  
import org.rut.util.algorithm.SortUtil; q~W:W}z  
bX:h"6{=R  
/** ;b1B*B  
* @author treeroot i`+bSg  
* @since 2006-2-2 T,>L  
* @version 1.0 nfGI4ZE  
*/ kQlwl9  
public class BubbleSort implements SortUtil.Sort{ N]| >\  
cL03V?} ~  
/* (non-Javadoc) rMZuiRz*  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) B@6L<oZ  
*/ g*LD}`X/-  
public void sort(int[] data) { -TG ="U  
int temp; b8YdONdy  
for(int i=0;i for(int j=data.length-1;j>i;j--){ Kdp($L9r  
if(data[j] SortUtil.swap(data,j,j-1); Q@NFfJJ  
} W-&V:S{<  
} 10c.#9$  
} p nI=  
} )7 8T+7Kq  
]cmX f  
} uZ JfIC<>  
woP j>M  
选择排序: Za3}:7`Gu  
BL_0@<1X  
package org.rut.util.algorithm.support; /T(9:1/G  
7[u>#8  
import org.rut.util.algorithm.SortUtil; 2u!&Te(!9  
$of2lA  
/** gM=:80  
* @author treeroot m9i/rK_  
* @since 2006-2-2 qnj'*]ysBC  
* @version 1.0 hKWWN`;b !  
*/ =EA:fq  
public class SelectionSort implements SortUtil.Sort { r@Jy*2[-Jq  
Yb/*2iWX  
/* 9`Fw}yAt  
* (non-Javadoc) &TA{US3~  
* ]Zc|<f;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -rm[.  
*/ ?8GS*I  
public void sort(int[] data) { HDZl;=  
int temp; 1TGRIe)  
for (int i = 0; i < data.length; i++) { *0eU_*A^zO  
int lowIndex = i; ty pbwfM]  
for (int j = data.length - 1; j > i; j--) { >X05f#c"v/  
if (data[j] < data[lowIndex]) { 5~:/%+F0=  
lowIndex = j; B,w ZI4oi*  
} Ox-eB  
} 'EXx'z;/#  
SortUtil.swap(data,i,lowIndex); |b.xG_-s1  
} bP#!U'b"=  
} <"P-7/j3j  
hdrsa}{g  
} p&]V!O  
1hGj?L0m.  
Shell排序: DR:$urU$  
}AJoF41X  
package org.rut.util.algorithm.support; xLOQu.  
je2_ .^  
import org.rut.util.algorithm.SortUtil; pxd=a!(  
~tW~%]bs2Q  
/** mOn_#2=KF  
* @author treeroot OVe0{} j  
* @since 2006-2-2 ja';NIO-  
* @version 1.0 B#SVN Lv  
*/ (A6~mi r!  
public class ShellSort implements SortUtil.Sort{ z^Ikb(KC  
ozRTY9S _;  
/* (non-Javadoc) Z CPUNtOl  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fTvm2+.nX  
*/ Q zaD\^OF  
public void sort(int[] data) { z"UC$  
for(int i=data.length/2;i>2;i/=2){ }P fAf  
for(int j=0;j insertSort(data,j,i); V<H9KA  
} Op ?"G  
} ^sLx3a  
insertSort(data,0,1); "W(Ae="60  
} 8iJB'#''*  
RK|*yt"f"  
/** Wx{E\ l  
* @param data ~:bdS 4w  
* @param j RE%f'y  
* @param i KBN% TqH|  
*/ {.{Wl,|7  
private void insertSort(int[] data, int start, int inc) { |9c~kTjK  
int temp; #H>{>0q  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); bP 9ly9FH  
} @3O)#r}\  
} `!HD. E[2c  
} SXOAa<u5  
PLc5m5  
} ^1bslCe   
Kx] SiejJ  
快速排序: >{IPt]PCn  
A:r?#7 Ma  
package org.rut.util.algorithm.support; ~&73f7  
eNAxVF0  
import org.rut.util.algorithm.SortUtil; ?s^3 o{!<W  
~dRstH7u  
/** cA q3Gh  
* @author treeroot 0^-1d2Z~  
* @since 2006-2-2 4F~^RR"  
* @version 1.0 3Hom0g,V4  
*/ PWpt\g  
public class QuickSort implements SortUtil.Sort{ UPfO;Z`hJ  
s.}K?)mH  
/* (non-Javadoc) \7/yWd{N$  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) U+)p'%f;  
*/ y3dk4s77  
public void sort(int[] data) { `)n4I:)2  
quickSort(data,0,data.length-1); Pj-INc96  
} :/;/mHG]  
private void quickSort(int[] data,int i,int j){ EE!}$qOR  
int pivotIndex=(i+j)/2; [!A[oK9i C  
file://swap K}R+~<bIY  
SortUtil.swap(data,pivotIndex,j); p%"dYH%]&0  
PX 8UVA  
int k=partition(data,i-1,j,data[j]); r<e%;S  
SortUtil.swap(data,k,j); 5XZ! yYB?  
if((k-i)>1) quickSort(data,i,k-1); oY18a*_>M1  
if((j-k)>1) quickSort(data,k+1,j); Mn.,?IF`K  
(hzN(Dh  
} EMW6'  
/** KeQcL4<  
* @param data YZBh}l6t  
* @param i kW g.-$pp  
* @param j (8JU!lin  
* @return 5G* cAlU  
*/ } p'ZMj&  
private int partition(int[] data, int l, int r,int pivot) { &[.`xZ(|  
do{ H,!xTy"Wh  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); )#}>,,S  
SortUtil.swap(data,l,r); RwWg:4   
} "#j}F u_!  
while(l SortUtil.swap(data,l,r); _8VP'S=  
return l; senK (kbc  
} @LKQ-<dZG  
(CmK> "C+  
} \n) ',4mY  
Zh<;r;2  
改进后的快速排序: )|F|\6:ne  
+T+@g8S  
package org.rut.util.algorithm.support; h4? x_"V"  
FRBu8WW0L  
import org.rut.util.algorithm.SortUtil; n{ ;j  
)u)=@@k21  
/** &7aWVKon  
* @author treeroot e`D}[G#  
* @since 2006-2-2 /~[Lr   
* @version 1.0 6Xlzdt  
*/ nVb@sI{{k  
public class ImprovedQuickSort implements SortUtil.Sort { W7i|uTM  
t;&XIG~  
private static int MAX_STACK_SIZE=4096; ,S8K!  
private static int THRESHOLD=10; @w[i%F,&`  
/* (non-Javadoc) i q(PC3e`V  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'pdTV:]zA  
*/ XIHN6aQ{X  
public void sort(int[] data) { _!\d?]Ya  
int[] stack=new int[MAX_STACK_SIZE]; +2~k Hrv  
,kN;d}bg  
int top=-1; #< im?  
int pivot; 6[> lzEZ  
int pivotIndex,l,r; X*8y"~X|vq  
*v>ZE6CL  
stack[++top]=0; -u2i"I730  
stack[++top]=data.length-1; A=Wg0eYy\  
m~ tvuz I  
while(top>0){ E7fx4kV  
int j=stack[top--]; `Lf'/q   
int i=stack[top--]; n|SV)92o1  
}h5i Tc  
pivotIndex=(i+j)/2; )+E[M!34  
pivot=data[pivotIndex]; 1j<(?MT-  
z^gJy,T  
SortUtil.swap(data,pivotIndex,j); K}V CFV  
j2Zp#E!  
file://partition $B+| &]a  
l=i-1; *eVq(R9?T  
r=j; 'X`Z1L/  
do{ )ZJvx%@i  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); &SY!qTxF  
SortUtil.swap(data,l,r); l]nt@0+  
} _FLEz|%~  
while(l SortUtil.swap(data,l,r); ^.SYAwL  
SortUtil.swap(data,l,j); C_.9qo]DT7  
\oQ]=dDCd%  
if((l-i)>THRESHOLD){ DDg\oGLp  
stack[++top]=i; *sho/[~_  
stack[++top]=l-1; ^URCnJ67Se  
} mP(3[a_Q  
if((j-l)>THRESHOLD){ @fL ^I&++  
stack[++top]=l+1; Nk`UQ~g$  
stack[++top]=j; o\AnM5  
} $`=p]  
f-=\qSo  
} :$5A3i  
file://new InsertSort().sort(data); gg;r;3u  
insertSort(data); E h%61/  
} 5jdZC(q5a  
/** ^[L(kHOGzk  
* @param data J~Xv R  
*/ ^rkKE dd  
private void insertSort(int[] data) { PxHFH pL  
int temp; !Brtao"m  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); yC,/R371k  
} WeI+|V$  
} |D3u"Y!:^  
} Q M,!-~t  
&K)8  
} weitDr6  
wucdXj{%  
归并排序: l.[pnLD  
CI|lJ  
package org.rut.util.algorithm.support; kmuksT\)a  
"cH RGJG#  
import org.rut.util.algorithm.SortUtil; <P9fNBGa  
Y4T")  
/** e _vsiT  
* @author treeroot %B3~t>  
* @since 2006-2-2 [}X|&`'i  
* @version 1.0 ?mQ^"9^XS  
*/ &v\F ah U  
public class MergeSort implements SortUtil.Sort{ cpY {o^  
Hh<H~s [  
/* (non-Javadoc) ~,'{\jDrS  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) SGd]o"VF  
*/ ZS Med(//b  
public void sort(int[] data) { ]-PzN'5\'  
int[] temp=new int[data.length]; I0=_=aZO(  
mergeSort(data,temp,0,data.length-1); gwZ<$6  
} &4'< {  
'nJF:+30ZH  
private void mergeSort(int[] data,int[] temp,int l,int r){ *p l6 V|  
int mid=(l+r)/2; LzygupxY!  
if(l==r) return ; ^\)a[OWp  
mergeSort(data,temp,l,mid); 0MQ= Rt  
mergeSort(data,temp,mid+1,r); ]m]`J|%i  
for(int i=l;i<=r;i++){ bP,<^zA|X  
temp=data; 3KLUH=)P  
} z*Sm5i&)_q  
int i1=l; b^Hr zn  
int i2=mid+1;  idmU.`  
for(int cur=l;cur<=r;cur++){ QbU5FPiN  
if(i1==mid+1) B( [x8A]  
data[cur]=temp[i2++]; eh# 37*-  
else if(i2>r) yIw}n67  
data[cur]=temp[i1++]; ^}3^|jF  
else if(temp[i1] data[cur]=temp[i1++]; <QtZ6-;_f  
else fF:57*ys  
data[cur]=temp[i2++]; BT{;^Hp  
} J=V  
} gmTBT#{6yH  
\}-4(Xdaq  
} y)f.ON36I  
!`ol&QQ#  
改进后的归并排序: 1I Yip\:lS  
Pms@!yce  
package org.rut.util.algorithm.support; ^<]'?4m]  
[^>XR BSm  
import org.rut.util.algorithm.SortUtil; a"~o'W7  
_8K+iqMZG  
/** z,HhSW?&^  
* @author treeroot }v(wjD  
* @since 2006-2-2 6*8Wtq  
* @version 1.0 vr!J3H f  
*/ 91 jRIB  
public class ImprovedMergeSort implements SortUtil.Sort {  Xo^8o0xi  
AXfU$~  
private static final int THRESHOLD = 10; 8(3(kZxS  
iT@` dEZ .  
/* >WLPE6E  
* (non-Javadoc) r)(5,*v  
* P -m_],  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) dQut8>0&  
*/ !U`&a=k  
public void sort(int[] data) { {N(qS'N  
int[] temp=new int[data.length]; zVhyAf  
mergeSort(data,temp,0,data.length-1); _ %s#Cb  
} jiI=tg;  
G1:}{a5i_  
private void mergeSort(int[] data, int[] temp, int l, int r) {  ` Xc7b  
int i, j, k; gv!8' DKn  
int mid = (l + r) / 2; -15e  
if (l == r) !3Dq)ebBz  
return; o7y<Zd`Bj  
if ((mid - l) >= THRESHOLD) J?4{#p  
mergeSort(data, temp, l, mid); H7O~So*N5  
else MB}nn&u#  
insertSort(data, l, mid - l + 1); M!mL/*G@YE  
if ((r - mid) > THRESHOLD) Q G) s  
mergeSort(data, temp, mid + 1, r); j:9M${~  
else HKN|pO3v  
insertSort(data, mid + 1, r - mid); %V_ XY+o  
dQX-s=XJ  
for (i = l; i <= mid; i++) { D{9a'0J  
temp = data; egmUUuO  
} zcpL[@B  
for (j = 1; j <= r - mid; j++) { dg D-"-O  
temp[r - j + 1] = data[j + mid]; mY|c7}>V;  
} sA0 Ho6  
int a = temp[l]; zI88IM7/  
int b = temp[r]; ! FcGa  
for (i = l, j = r, k = l; k <= r; k++) { l9p  6I  
if (a < b) { ^0,}y]5p  
data[k] = temp[i++]; aRd~T6I  
a = temp; 6]4~]!  
} else { +cpb!YEAb  
data[k] = temp[j--]; 1nVQYqT_  
b = temp[j]; 2g(_Kdj*{  
} #%,X),%-  
}  ^`H'LD  
} $e^"Inhtqp  
q|5WHB  
/** a=S &r1s>  
* @param data Z'o0::k  
* @param l  31n"w;  
* @param i vE]ge  
*/ %$BRQ-O  
private void insertSort(int[] data, int start, int len) { !&)X5oJ  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); " <bjS  
} ]+lT*6P*  
} hzD)yf  
} a%go[_w  
} B'/U#>/  
|N,^*xP(6  
堆排序: 4+olyBht  
pEB3 qGA  
package org.rut.util.algorithm.support; 8X;?fjl`"  
!~^2Mu(X  
import org.rut.util.algorithm.SortUtil; g|)>65v  
N2h5@*1Y  
/** "|\hTRQ  
* @author treeroot +U fw  
* @since 2006-2-2 UMcM&yu-  
* @version 1.0 3s\UU2yr  
*/ s>9I#_4]  
public class HeapSort implements SortUtil.Sort{ Vjs2Yenx  
%<i sdvF  
/* (non-Javadoc) b:1B >  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2%/F`_XbP  
*/ O:]']' /  
public void sort(int[] data) { 1N/4W6  
MaxHeap h=new MaxHeap(); <Qq {&,Le  
h.init(data); TtJX(N~  
for(int i=0;i h.remove(); ]36SF5<0r  
System.arraycopy(h.queue,1,data,0,data.length); ?Ld),A/c  
} ~B<\#oO  
eDd& vf  
private static class MaxHeap{ #y\O+\4e  
&Vj @){  
void init(int[] data){ }$?FR  
this.queue=new int[data.length+1]; Uo3  
for(int i=0;i queue[++size]=data; >iyNZ]."\  
fixUp(size); ``xm##K  
} ?[Yn<|  
} |:)Bo<8  
W83d$4\d  
private int size=0; )St0}?I~  
p{?duq=  
private int[] queue; fb f&bJT  
<?7CwW  
public int get() { Z@Rqm:e  
return queue[1]; /X8a3Eqp9  
} mtUiO p  
[_N1 .}e  
public void remove() { LM<*VhX  
SortUtil.swap(queue,1,size--); V7$ m.P#uM  
fixDown(1); Yjg$o:M  
} cfmwz~S6i  
file://fixdown jLFaf#G]  
private void fixDown(int k) { 8Y SvBy  
int j; `!8\ |/  
while ((j = k << 1) <= size) { |\bNFnn(  
if (j < size %26amp;%26amp; queue[j] j++; c coi  
if (queue[k]>queue[j]) file://不用交换 ~HY)$Yp;  
break; e_-g|ukC  
SortUtil.swap(queue,j,k); ]W3u~T*  
k = j; df{?E):  
} n%r>W^2j  
} e"@r[pq-{u  
private void fixUp(int k) { Z%#e* O0  
while (k > 1) { AB $N`+&  
int j = k >> 1; mmQC9nZ  
if (queue[j]>queue[k]) tFcQ.1  
break; ( w4XqVT  
SortUtil.swap(queue,j,k); m.P F'_)/  
k = j; [,bJKz)a  
} II^Rp],>  
} 'q}Ud10c  
Y1o[|yt W  
} QXI~Toddj  
#h.N#{9  
} 5ncW s)  
gvVy0nJI~  
SortUtil: D[W ` q#W  
JKKp5~_~  
package org.rut.util.algorithm; \Vv)(/q{  
H:b"Vd"x9  
import org.rut.util.algorithm.support.BubbleSort; fe\'N4  
import org.rut.util.algorithm.support.HeapSort; 8y<mHJ[B  
import org.rut.util.algorithm.support.ImprovedMergeSort; I'D3~UI f  
import org.rut.util.algorithm.support.ImprovedQuickSort; .(&6gB  
import org.rut.util.algorithm.support.InsertSort; mAH7; u<  
import org.rut.util.algorithm.support.MergeSort; 9f['TG,"  
import org.rut.util.algorithm.support.QuickSort; v~RxtTu  
import org.rut.util.algorithm.support.SelectionSort; u!xgLf'`  
import org.rut.util.algorithm.support.ShellSort; :qS~"@?<  
Qc33C A  
/** !/`AM<`o  
* @author treeroot r E1ouz!D  
* @since 2006-2-2 '"Cqq{*  
* @version 1.0 ks$5$,^T2o  
*/ <F`9;WX  
public class SortUtil { :WH{wm|  
public final static int INSERT = 1; HF*~bL  
public final static int BUBBLE = 2; )fXxkOd  
public final static int SELECTION = 3; 5hqXMs  
public final static int SHELL = 4; ko.% @Y(=  
public final static int QUICK = 5; z:UkMn[  
public final static int IMPROVED_QUICK = 6; 0gyvRM@ x[  
public final static int MERGE = 7; D}%VZA}].  
public final static int IMPROVED_MERGE = 8; FoIK, MdJ  
public final static int HEAP = 9; =}ZY`O*/  
-X*.scw  
public static void sort(int[] data) { !'\(OFv9Im  
sort(data, IMPROVED_QUICK); r:xg#&"*  
} [3irr0D7l  
private static String[] name={ Jv(E '"H  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 5i$P$ R  
}; x8z6 <  
JAW7Y:XB  
private static Sort[] impl=new Sort[]{ Z$0mKw   
new InsertSort(), HH*,Oe   
new BubbleSort(), XffHF^l9F  
new SelectionSort(), ;[zZI~wh  
new ShellSort(), B8cg[;e81  
new QuickSort(), qPN  
new ImprovedQuickSort(), GDj_+G;tO\  
new MergeSort(), yyPj!<.MGP  
new ImprovedMergeSort(), p-C{$5& O1  
new HeapSort() ILNghtm-  
}; aorL,l  
xR'd}>`  
public static String toString(int algorithm){ -Hi_g@i*XW  
return name[algorithm-1]; KJn 3&7  
} a Sm</@tO&  
yokZ>+jb  
public static void sort(int[] data, int algorithm) { \#h=pz+jb  
impl[algorithm-1].sort(data); Jx3a7CpX  
} 7DW-brd   
)W@  
public static interface Sort { 4P2p|Gc3  
public void sort(int[] data); ),<h6$  
} "{{@N4^  
PVKq&Q?  
public static void swap(int[] data, int i, int j) { 8=\k<X{`  
int temp = data; <!u(_Bxw/  
data = data[j]; cP21x<n  
data[j] = temp; 9Up> e  
} Rlr[uU_  
} Yv*i69"  
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