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
  • 5290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。 D7R;IA-w  
插入排序: K4Ed]hX  
)cgNf]oy  
package org.rut.util.algorithm.support; (| O(BxS  
s4 , `  
import org.rut.util.algorithm.SortUtil; \B 8j9  
/** &: LE]w  
* @author treeroot Nba1!5:M  
* @since 2006-2-2 s'/_0  
* @version 1.0 J}Z\I Y,  
*/ uYFy4E3  
public class InsertSort implements SortUtil.Sort{ JWu0VLo  
0(5qVJ12  
/* (non-Javadoc) 3#fg 2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5a6d3u/  
*/ {2xc/   
public void sort(int[] data) { ='I2&I,)  
int temp; (CDh,ZN;|  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); =s AOWI,8!  
} 7F]oK0l_  
} Gf7r!Ur;g  
} 3-y2i/4}$  
V 7 p{'C   
} |p/[sD+M  
9-# =xE9'U  
冒泡排序: %7[d5[U~ZA  
!K.)Qr9V  
package org.rut.util.algorithm.support; ]q #"8 =  
m{*_%tjN0  
import org.rut.util.algorithm.SortUtil; O~Jf"Ht  
UM1h[#?&V)  
/** d|tNn@jN  
* @author treeroot | v>W  
* @since 2006-2-2 N#OO{`":Z`  
* @version 1.0 cor!Sa>  
*/ 2e,cE6r  
public class BubbleSort implements SortUtil.Sort{ |em_l$oGc  
laCVj6Rk  
/* (non-Javadoc) Zz|et206  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 22d>\u+c  
*/ Yg!fEopLb  
public void sort(int[] data) { GOCe&?  
int temp; 6[Mu3.T  
for(int i=0;i for(int j=data.length-1;j>i;j--){ Kr<a6BEv5  
if(data[j] SortUtil.swap(data,j,j-1); ;Uypv|xX  
} 'eQ*?a43  
} ;x)f;!e+  
} tTq2 AR|  
} +s+E!=s  
Ta8lc %0w3  
} % Q93n {?  
F6{Q1DqI  
选择排序: 93)1  
VyIM ,glu  
package org.rut.util.algorithm.support; :2t?0YR  
:y~l?0b&8  
import org.rut.util.algorithm.SortUtil; WD8F]+2O\  
jTsQsHq   
/** gfXit$s  
* @author treeroot FYaBP;@J%  
* @since 2006-2-2 KjV1->r#  
* @version 1.0 '8^>Z.~V  
*/ fQfd1=4  
public class SelectionSort implements SortUtil.Sort {  =VSUE Pq  
E_xCRfw_i]  
/* U4NA'1yo  
* (non-Javadoc) + VhD]!  
* {bNKyT  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) n7#}i2:  
*/ R4f_Kio  
public void sort(int[] data) { -C* UB  
int temp; .A6Jj4`-  
for (int i = 0; i < data.length; i++) { |3EKK:RE  
int lowIndex = i; uw&p)  
for (int j = data.length - 1; j > i; j--) { ! M7727  
if (data[j] < data[lowIndex]) { Coe%R(x5  
lowIndex = j; G{'`L)~3N  
} NW*$+u%/R  
} R5cpmCs@R  
SortUtil.swap(data,i,lowIndex); ynq^ztBVe  
} l5Q-M{w0x  
} d-UQc2r  
Eye.#~  
} # i|pi'I j  
.gwT?O,  
Shell排序: CVgVyy^  
OYIH**?  
package org.rut.util.algorithm.support; H3 |x  
.Nd_p{   
import org.rut.util.algorithm.SortUtil; $0 ~_)$i :  
^,fMs:  
/** kSqMI'89  
* @author treeroot `Yo!sgPO\  
* @since 2006-2-2 y=e|W=<D&  
* @version 1.0 Tml>>O  
*/ hLSas#B>  
public class ShellSort implements SortUtil.Sort{ LyT[  
pTcN8E&Unz  
/* (non-Javadoc) y}> bJ:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &Ht5!zuW,  
*/ 1NU@k6UHl  
public void sort(int[] data) { }ILg_>uq[  
for(int i=data.length/2;i>2;i/=2){ li)shp)  
for(int j=0;j insertSort(data,j,i); :}~B;s0M\  
} [G}l;  
} D]5cijO6  
insertSort(data,0,1); R|t.J oP9  
} II}3w#r4  
ujoJ6UOG  
/** cY%6+uJ1  
* @param data IaYy5Rw  
* @param j /HM 0p  
* @param i /-C6I:  
*/ uU`Mq8) R  
private void insertSort(int[] data, int start, int inc) { FP h1}qS  
int temp; wb (quu  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); kiR+ Dsl  
} aL0,=g%  
} `BKV/Xl  
} p>0n~e  
 5wy3C  
} $r/tVu2!W  
uY$BZEuAZ  
快速排序: t8z=R6zX  
(Q][d+} /  
package org.rut.util.algorithm.support; wD`jks  
*gL-v]V  
import org.rut.util.algorithm.SortUtil; UZ 6:vmcT  
Ab)X/g-I @  
/** L 3^+`e  
* @author treeroot 5(&'/U^  
* @since 2006-2-2 U=\!`_f':  
* @version 1.0 ~_hn{Ou s  
*/ (GDW9:  
public class QuickSort implements SortUtil.Sort{ YhFd0A?]  
0%GQXiy  
/* (non-Javadoc) ^@n?&  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) o" e]9{+<  
*/ x`gsD3C  
public void sort(int[] data) {  Y.v. EZ  
quickSort(data,0,data.length-1); xa|/P#q  
} %Ig3udcY?  
private void quickSort(int[] data,int i,int j){ IO]%AL(.;  
int pivotIndex=(i+j)/2; +OX:T) 4h6  
file://swap  ,7w[r<7  
SortUtil.swap(data,pivotIndex,j); m?pm)w  
Ny)N  
int k=partition(data,i-1,j,data[j]); Ga#5xAI{a  
SortUtil.swap(data,k,j); &! MV!9$  
if((k-i)>1) quickSort(data,i,k-1); dhmZ3~cW>  
if((j-k)>1) quickSort(data,k+1,j); -jQM h  
72{Ce7J4  
} DmpG35Jk  
/** N3QDPQ  
* @param data *Bm _  
* @param i t7qY!S (  
* @param j 8UN7(J  
* @return H m Z*  
*/ QcG-/_,'}  
private int partition(int[] data, int l, int r,int pivot) { We*&\e+"T  
do{ *B1%-  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 0GP\*Y8  
SortUtil.swap(data,l,r); zY&/^^y  
} qA5PIEvdq  
while(l SortUtil.swap(data,l,r); "kg;fF|  
return l; Tg|/UUn  
} a\?-uJ+  
s'yT}XQ;r  
} b1ma(8{{{  
qD<\U  
改进后的快速排序: wj#A#[e  
LyA}Nd]pyq  
package org.rut.util.algorithm.support; o!>h Q#h  
^ woCwW8n  
import org.rut.util.algorithm.SortUtil; pLea 4  
wwD?i.3  
/** Y5?OJO{h"  
* @author treeroot LyWgaf#/d  
* @since 2006-2-2 $ %BNoSK  
* @version 1.0 hqVxvS"  
*/ E-J<%+  
public class ImprovedQuickSort implements SortUtil.Sort {  pu?D^h9/  
nN$aZSb`  
private static int MAX_STACK_SIZE=4096; '\I!RAZ  
private static int THRESHOLD=10; urA kV#d#  
/* (non-Javadoc) A~MIFr/8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ym.:I@b?6  
*/ b'$fr6"O1  
public void sort(int[] data) { p`2w\P3;)  
int[] stack=new int[MAX_STACK_SIZE]; $~FnBD%|{  
"-a CF  
int top=-1; C)xM>M_CB  
int pivot; [/IN820t  
int pivotIndex,l,r; U9eb&nd  
aokV'6  
stack[++top]=0; &yN/ AY`U  
stack[++top]=data.length-1; HH3Ln+AWg_  
yTwtGo&  
while(top>0){ $Y9Wzv3Ra  
int j=stack[top--]; %RX}sS  
int i=stack[top--]; ?'I pR  
mcqLN5  
pivotIndex=(i+j)/2; r}Ec_0_lt  
pivot=data[pivotIndex]; S @[B?sNj  
6 r}R%{  
SortUtil.swap(data,pivotIndex,j); /<-@8CC<  
@dx$&;w  
file://partition C])b 3tM,7  
l=i-1; m6 @,J?X  
r=j; z6>Rv9f  
do{ J.^%VnrFO9  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); _m2p>(N|  
SortUtil.swap(data,l,r); @^UnrKSd  
} l11+sqg  
while(l SortUtil.swap(data,l,r); $>=?'wr  
SortUtil.swap(data,l,j); 1}Mdo&:t  
D3xyJ  
if((l-i)>THRESHOLD){ Q@w=Jt<  
stack[++top]=i; Tj v)jD  
stack[++top]=l-1; E\lel4ai  
} b]cnTR2E  
if((j-l)>THRESHOLD){ nOj0"c  
stack[++top]=l+1; # )]L3H<  
stack[++top]=j; ;N;['xcx;  
} y$6~&X  
}G53"  
} 8^>qzaf 8  
file://new InsertSort().sort(data); C^8n;i9  
insertSort(data);  "yA=Tw  
} I@jXW>$  
/** ,wPvv(b]a  
* @param data xR`M#d5"  
*/ yHIZpU|(j  
private void insertSort(int[] data) { |h(05Kbk  
int temp; tVFydN~  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 4<(U/58a*  
} V4>qR{5  
} Hu-Y[~9^L:  
} LCouDk(=`  
~"8D]  
} 3L1MMUACL  
(dgBI}Za  
归并排序: 2=V~n)'a  
$$f89, h  
package org.rut.util.algorithm.support; `<x((@#  
~us1Df0bp  
import org.rut.util.algorithm.SortUtil; $9}jU#Z|hd  
%Z]c[V.  
/** b"7L ;J5|  
* @author treeroot PRQEk.C  
* @since 2006-2-2 !Pf6UNN'  
* @version 1.0 `y0u(m5  
*/ 8k|&&3_[?  
public class MergeSort implements SortUtil.Sort{ NL} Q3Vv1.  
dDxb}d x8  
/* (non-Javadoc) 5g\>x;cc  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @4xV3Xkf&C  
*/ |Ta-D++]'  
public void sort(int[] data) { 2?)8s"Y  
int[] temp=new int[data.length]; )Lb?ZXT3  
mergeSort(data,temp,0,data.length-1); 2vh@KnNU  
} |rr<4>)X  
%]1.)j  
private void mergeSort(int[] data,int[] temp,int l,int r){ vtu!* 7m  
int mid=(l+r)/2; X5w_ }Nhe  
if(l==r) return ; ])tUXU>  
mergeSort(data,temp,l,mid); }{y(&Oy3Y  
mergeSort(data,temp,mid+1,r); x?rn< =  
for(int i=l;i<=r;i++){ 2.PZtl  
temp=data; lGZf_X)gA^  
} V(c>1xLlz  
int i1=l; =%Z5"];  
int i2=mid+1; t$zeB OI)  
for(int cur=l;cur<=r;cur++){ c%x9.s<+1  
if(i1==mid+1) ^<OcbOn;O  
data[cur]=temp[i2++]; .4O~a  
else if(i2>r) "HwSW4a]  
data[cur]=temp[i1++]; qayM 0i>>  
else if(temp[i1] data[cur]=temp[i1++]; 7I4<Dj  
else 6haw\ *  
data[cur]=temp[i2++]; Ygs:Ox"[-G  
} ,d`6 {ll  
} YHQvx_0yP  
KJ#SE|  
} oGvk,mh"(  
e~P4>3  
改进后的归并排序: pgipT#_K  
?(R !BB  
package org.rut.util.algorithm.support; oo-O>M#5  
KJP}0|[  
import org.rut.util.algorithm.SortUtil; qLWM,[Og  
ec3zoKtV  
/** J5"d|i  
* @author treeroot < 19A=  
* @since 2006-2-2 _MLbJ  
* @version 1.0 v9 *WM3  
*/ L"Dos +  
public class ImprovedMergeSort implements SortUtil.Sort { dKJ-{LV  
Zgw4[GpL  
private static final int THRESHOLD = 10; LTWiCI  
;}KT 3Q<^  
/* [MXyOE  
* (non-Javadoc) VKMgcfbHr/  
* U+-R2w]#q_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7#+>1 "\  
*/ qe2@bG%2+F  
public void sort(int[] data) { /CXQ&nwY9=  
int[] temp=new int[data.length]; <IO@Qj1*  
mergeSort(data,temp,0,data.length-1); \]|(w*C  
} 0`KR8# A@  
LMHii Os,  
private void mergeSort(int[] data, int[] temp, int l, int r) { 76(/(v.x  
int i, j, k; !x[].Urj  
int mid = (l + r) / 2; f<y-{.VnN$  
if (l == r) 6lob&+  
return; ?M B Od9  
if ((mid - l) >= THRESHOLD) AwtiV-w  
mergeSort(data, temp, l, mid); `R m<1  
else 1YScZ  
insertSort(data, l, mid - l + 1); Nh[H[1"J  
if ((r - mid) > THRESHOLD) C Ef*:kr  
mergeSort(data, temp, mid + 1, r); D%~"]WnZ\Q  
else 9Yhl q$;g  
insertSort(data, mid + 1, r - mid); J b?x-%Za  
&t,"k'p  
for (i = l; i <= mid; i++) { $bFH%EA.  
temp = data; "@YtxYTW-  
} "h7Np/ m3  
for (j = 1; j <= r - mid; j++) { ^H`4BWc  
temp[r - j + 1] = data[j + mid]; 4L/nEZ!Nsu  
} $[0\Th  
int a = temp[l]; 66{Dyn7J~  
int b = temp[r]; Ia j`u  
for (i = l, j = r, k = l; k <= r; k++) { 4 z^7T  
if (a < b) { 3R<VpN){  
data[k] = temp[i++]; PwnfXsR  
a = temp; dR!x)oO=  
} else { 1Vx>\A  
data[k] = temp[j--]; e/b | sl  
b = temp[j]; vD76IG jm  
} 3$4I  
} {[~dI ~  
} G * =>  
sL)7MtNwy  
/** &mkL4 jXG  
* @param data KM9H<;A  
* @param l nQ@<[KNd  
* @param i 4}-G<7*  
*/ 1h3`y  
private void insertSort(int[] data, int start, int len) { 0-:dzf  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); %^l&:\ hy  
} R>hL.+l.  
} k>F>y|m  
} \3T[Cy|5|  
} d >O/Zal  
89UR w9  
堆排序: {~`{bnx^]7  
Nz>xilU'  
package org.rut.util.algorithm.support; vLpIVNA]]Y  
|]eWO#vs  
import org.rut.util.algorithm.SortUtil; >{[  
 Y-+JDrK  
/** Z5eM  
* @author treeroot DfX~}km  
* @since 2006-2-2 y#FFxSH>  
* @version 1.0 Uf9L*Z'6il  
*/ WsW]  1p  
public class HeapSort implements SortUtil.Sort{ M_h8{  
+z<GycIc?K  
/* (non-Javadoc) y ~Fi  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) JC# 5CCz  
*/ 70{B/ ($  
public void sort(int[] data) { vr4{|5M  
MaxHeap h=new MaxHeap(); CYYo+5x  
h.init(data); O-ppR7edh  
for(int i=0;i h.remove(); oG\lejO  
System.arraycopy(h.queue,1,data,0,data.length); YB.@zL0.(  
} ee {K5G  
1[!7xA0j  
private static class MaxHeap{ :OV6R ,  
[Pl''[  
void init(int[] data){ B & ]GGy  
this.queue=new int[data.length+1]; n7.85p@ua  
for(int i=0;i queue[++size]=data; vs@u*4.Ut<  
fixUp(size); <8^ws90Y  
} 5 p ,HkV  
} F{Oaxn  
W4(GI]`_+  
private int size=0; 6Zx5^f(qd  
~-UO^$M-  
private int[] queue; h:i FLSf  
&t6:1T  
public int get() { ji<(}d~L*  
return queue[1]; :mhO/Bx  
} N]-skz<v  
>z7 3uKA(  
public void remove() { R&Ss ET.  
SortUtil.swap(queue,1,size--); , [<$X{9  
fixDown(1); thz[h5C?C  
} m#<Jr:-  
file://fixdown Kw(S<~9-@  
private void fixDown(int k) { "q KVGd  
int j; rDGrq9  
while ((j = k << 1) <= size) { JAy-N bb\  
if (j < size %26amp;%26amp; queue[j] j++; o .V JnrJ  
if (queue[k]>queue[j]) file://不用交换 n<1*cL:8B  
break; :3{n(~  
SortUtil.swap(queue,j,k); F`1J&S;C  
k = j; 39L_O RMH  
} o5:md :\  
} @|{8/s Oq  
private void fixUp(int k) { S0ltj8t  
while (k > 1) { 7rG+)kHG  
int j = k >> 1; Jp= )L  
if (queue[j]>queue[k]) 7>h(M+ /  
break; Ii<k<Bt,  
SortUtil.swap(queue,j,k); ~V0 GRPnI  
k = j; \jb62Jp  
} +No` 89Y  
} #kE8EhQZ  
Gd$!xN %O  
} /x<uv_"  
WJk3*$=  
} WJ,?5#  
m'M5O@?  
SortUtil: VQ8Fs/Zt!  
">Ms V/  
package org.rut.util.algorithm; G cB<i  
Zu 4au<  
import org.rut.util.algorithm.support.BubbleSort; z#lIu  
import org.rut.util.algorithm.support.HeapSort; dH'02[;  
import org.rut.util.algorithm.support.ImprovedMergeSort; ZQn>+c2%!  
import org.rut.util.algorithm.support.ImprovedQuickSort; LW#U+bv]Dq  
import org.rut.util.algorithm.support.InsertSort; +S'm<}"1  
import org.rut.util.algorithm.support.MergeSort; 8_pyfb  
import org.rut.util.algorithm.support.QuickSort; nJ$2RN  
import org.rut.util.algorithm.support.SelectionSort; TpI8mDO\W  
import org.rut.util.algorithm.support.ShellSort; FL4BdJ\  
'6\ZgOO9  
/** p+0gE5  
* @author treeroot vy` lfbX@  
* @since 2006-2-2 "H=N>=g0E  
* @version 1.0 %Y,Ru)5}  
*/ 8l'W[6  
public class SortUtil { q>wO=qWx  
public final static int INSERT = 1; ) I(9qt>Y  
public final static int BUBBLE = 2; XA;f.u  
public final static int SELECTION = 3; nW<nOKTnk_  
public final static int SHELL = 4; bjI3xAs~  
public final static int QUICK = 5; ?H>^X)Ph  
public final static int IMPROVED_QUICK = 6; H[}lzL)  
public final static int MERGE = 7; ouO9%)zv  
public final static int IMPROVED_MERGE = 8; y:_>R=sw  
public final static int HEAP = 9; CugZ!>;^  
E~VV19Bv]/  
public static void sort(int[] data) { p'6XF{  
sort(data, IMPROVED_QUICK); Zrj#4 E1  
} 0|C !n+OK  
private static String[] name={ fs-LaV 0  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" tx)$4v  
}; R0mkEM  
j<`3xd'  
private static Sort[] impl=new Sort[]{ `VvQems  
new InsertSort(), 8(\J~I[^  
new BubbleSort(), FA := )  
new SelectionSort(), 947;6a%$  
new ShellSort(), vif)g6,  
new QuickSort(), Bsha)<  
new ImprovedQuickSort(), @/:7G.  
new MergeSort(), /t! 5||G  
new ImprovedMergeSort(), An^)K  
new HeapSort() qM6hE.J   
}; HXC\``E  
[lVfhXc&  
public static String toString(int algorithm){ i7cUp3  
return name[algorithm-1]; 78 ]Kv^l^_  
} ;?q}98-2  
< Wp)Y  
public static void sort(int[] data, int algorithm) { \3"B$Sp|=  
impl[algorithm-1].sort(data); Vw.)T/B_D  
} G B"Orm.  
!"&-k:|g  
public static interface Sort { agE-,  
public void sort(int[] data); |=KzQY|u  
} f=VlO d  
fK *l?Hr  
public static void swap(int[] data, int i, int j) { s:_a.4&Y  
int temp = data; g$zGiqzMK  
data = data[j]; H=w):kL|  
data[j] = temp; cd=|P?B i  
} g'{?j~g  
} Ryh 0r  
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:
3+5=?,请输入中文答案:八 正确答案:八