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
  • 8347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。 QeJ.o.m{  
插入排序: }!]x|zU.=  
fsc~$^.~\  
package org.rut.util.algorithm.support; DIp:S&q2  
"ue$DyN  
import org.rut.util.algorithm.SortUtil; #Rx"L&3Ue  
/** w LN2`ucC  
* @author treeroot ZV]e-  
* @since 2006-2-2 ,(27p6!  
* @version 1.0 ~!-8l&C  
*/ ' xZPIj+  
public class InsertSort implements SortUtil.Sort{ Hq\E 06S@  
M|#5gKXd  
/* (non-Javadoc) Z)i1?#  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) E D^rWE_  
*/ x<j"DS}S)D  
public void sort(int[] data) { 0#fG4D_  
int temp; UX'NJ1f  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); -0o6*?[Z  
} 0 ;_wAk  
} JX/4=..  
} _#D\*0J  
d<Q+D1  
} iynS4]`U  
EKd3$(^   
冒泡排序: Gz|%;  
px }7If  
package org.rut.util.algorithm.support; Ipz 1+ #s'  
d6@jEa-  
import org.rut.util.algorithm.SortUtil; JM-ce8U  
?)[zLnxc&  
/** J&"?m.~@  
* @author treeroot  LbX6p  
* @since 2006-2-2 aMvK8C%7  
* @version 1.0 Dyk[u g5  
*/ y^QYl ZO  
public class BubbleSort implements SortUtil.Sort{ A]iv)C;]  
k g,ys4  
/* (non-Javadoc) hHc^ZA  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) RQpIBsj  
*/ 2WPF{y%/  
public void sort(int[] data) { i$JG^6,O  
int temp; a][pTC\rb  
for(int i=0;i for(int j=data.length-1;j>i;j--){ W-!Bl&jF[  
if(data[j] SortUtil.swap(data,j,j-1); ;*-@OLT_K  
} 45)ogg2  
} Ku/H=  
} : \:~y9X0  
} Wz-3?EQ  
s"=F^#  
} B221}t  
|)?aH2IL  
选择排序: K Z!N{.Jk  
g| ._n  
package org.rut.util.algorithm.support; - Y8ks7  
rO(TG  
import org.rut.util.algorithm.SortUtil; T018)WrhL  
c BHL,  
/** ,%?; \?b%h  
* @author treeroot WS1&3mOd  
* @since 2006-2-2 prlyaq;4  
* @version 1.0 G/fP(o-Wd  
*/ c+8>EU AW  
public class SelectionSort implements SortUtil.Sort { ;5D @kS^  
i.&Kpw9;m  
/* XSp x''l  
* (non-Javadoc) jom} _  
* GSGyF  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I mPu}  
*/ UAx.Qq  
public void sort(int[] data) { %oh`EGmVP  
int temp; UH 47e  
for (int i = 0; i < data.length; i++) { /o|PA:6J  
int lowIndex = i; xTJ Sr2f  
for (int j = data.length - 1; j > i; j--) { #a(%(k S  
if (data[j] < data[lowIndex]) { M<A;IOpR+  
lowIndex = j; `J>E9p<  
} '&-5CpDUs  
} ;]gsJ9FK<  
SortUtil.swap(data,i,lowIndex); :F^$"~(,  
} ~KAp\!,  
} Y ]~ HAv '  
]27>a"p59Y  
} FJa[ToZ4+  
U] V3DDN  
Shell排序: @V* ju  
~aJW"\{  
package org.rut.util.algorithm.support; YY#s=  
- E8ntY-  
import org.rut.util.algorithm.SortUtil; 5\akI\  
r~$}G-g  
/** 7P/?wv9+n*  
* @author treeroot [$( sUc(%  
* @since 2006-2-2 4_Qa=T8  
* @version 1.0 y+4?U  
*/ }BI~am_  
public class ShellSort implements SortUtil.Sort{ ,DQGv_  
L$Hx?^3  
/* (non-Javadoc) z(g%ue\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ? G$Om  
*/ SY%A"bC  
public void sort(int[] data) { cBz!U 8(  
for(int i=data.length/2;i>2;i/=2){ ZnvEv;P  
for(int j=0;j insertSort(data,j,i); V!T^wh;  
} wr$cK'5ZL  
} k^H0b\hYY  
insertSort(data,0,1); ydwK!j0y  
} FOOQ'o[}  
FX HAZ2/\  
/** rc;7W:  
* @param data (3 IZ  
* @param j {S5RK-ax  
* @param i L6|Hgrj-u  
*/ = n+q_.A  
private void insertSort(int[] data, int start, int inc) { %`xV'2H  
int temp; K&=1Ap  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); RLdl z  
} )KSisEL  
} :/o C:z\h  
} { 1+Cw?1d  
A",eS6  
} ]b4pI*:$I  
xS= _yO9-  
快速排序: <8u>_o6  
o3Mf:;2cC  
package org.rut.util.algorithm.support; BZovtm3 E  
k$ZRZ{ E+  
import org.rut.util.algorithm.SortUtil; )Rjb/3*!  
@v>l[6]>^  
/** Mw/?wtW  
* @author treeroot vuYO\u+ud  
* @since 2006-2-2 }1QI"M*  
* @version 1.0 fNmE,~  
*/ @ SU8\:(U  
public class QuickSort implements SortUtil.Sort{ X AQGG>  
}x*7l`1  
/* (non-Javadoc) Ct4LkmD  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lV P9=  
*/ r?fH &u  
public void sort(int[] data) { h/,R{A2mO  
quickSort(data,0,data.length-1); u@<Pu@?xm  
} :lUX5j3  
private void quickSort(int[] data,int i,int j){ nN>J*02(  
int pivotIndex=(i+j)/2; %b=Y <v  
file://swap `_|aeoK_  
SortUtil.swap(data,pivotIndex,j); L ;6b+I  
hS4.3]ei  
int k=partition(data,i-1,j,data[j]); dZPW2yf  
SortUtil.swap(data,k,j); x>}B#  
if((k-i)>1) quickSort(data,i,k-1); )VNM/o%Q  
if((j-k)>1) quickSort(data,k+1,j); lc]V\ 'e  
z)}3**3'y  
} j7K5SS_]  
/** 9lKn% |=T  
* @param data O/mR9[}  
* @param i r]v&t  
* @param j &=YSM.G  
* @return Yl $X3wi  
*/ m;dm|4L^  
private int partition(int[] data, int l, int r,int pivot) { %B@ !  
do{ >^dyQyK  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); vkJ)FEar  
SortUtil.swap(data,l,r); M)L/d_4ka  
} Kl{-zX  
while(l SortUtil.swap(data,l,r); zG_p"Z7,  
return l; _}D%iJg#  
} KE<kj$  
.Y;b)]@f  
} yH^f\u0  
n|WfaJQZ  
改进后的快速排序: F9-[%l  
uS~#4;R   
package org.rut.util.algorithm.support; 4CLsY n?  
n=q=zn;  
import org.rut.util.algorithm.SortUtil; 7AFE-'S  
W Zq,()h  
/** 98GlhogWt  
* @author treeroot .;9jdGBf  
* @since 2006-2-2 *.oKI@  
* @version 1.0 W;4Lkk$  
*/ Ejv%,q/T(  
public class ImprovedQuickSort implements SortUtil.Sort { cph~4wCS[U  
-;$nb~y  
private static int MAX_STACK_SIZE=4096; ;J]25j]]  
private static int THRESHOLD=10; w!\3ICB  
/* (non-Javadoc) TXjloGv^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'TL2%T/)t  
*/ 9e!vA6Fx  
public void sort(int[] data) { -IadHX}]t  
int[] stack=new int[MAX_STACK_SIZE]; n@hl2M6.x9  
>L gVj$Z  
int top=-1; xRlYr# %  
int pivot; /be=u@KV  
int pivotIndex,l,r; n#4Gv|{XMD  
I.1D*!tz  
stack[++top]=0; Y6A;AmM8  
stack[++top]=data.length-1; t0q_>T-kt  
OiF{3ae(  
while(top>0){ i\)3l%AK]T  
int j=stack[top--]; Ql8bt77eI-  
int i=stack[top--]; );Z]SGd  
m[spn@SF  
pivotIndex=(i+j)/2; #n3ykzoqIX  
pivot=data[pivotIndex]; dy<27=  
>.e+S?o  
SortUtil.swap(data,pivotIndex,j); \7Qb229?  
'f+NW &   
file://partition )s)_XL  
l=i-1; NgVR,G|1  
r=j; | f\D>Y%)  
do{ eZH~je{1  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot));  x0A7O  
SortUtil.swap(data,l,r); /_)l|<k+V  
} IxOc':/jY  
while(l SortUtil.swap(data,l,r); )1lu=gc  
SortUtil.swap(data,l,j); z C=a3  
^ q?1U?4  
if((l-i)>THRESHOLD){ ^/toz).Q  
stack[++top]=i; 8YX)0i'  
stack[++top]=l-1; 3-C\2  
} Ja|{1&J.  
if((j-l)>THRESHOLD){ px=]bALU  
stack[++top]=l+1; 2/B)O)#ls  
stack[++top]=j; 1oty*c  
} xzm@ v(  
)6-9)pH@)  
} [ ny6W9  
file://new InsertSort().sort(data); XN#&NT{t}  
insertSort(data); + BL{@,zr  
} $ J1f.YE  
/** -:<lkq&/  
* @param data [|RjHGf  
*/ )K;]y-Us[  
private void insertSort(int[] data) { kccWoU,  
int temp; Y/fJQ6DY  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ;h Hi@Z 9  
} 20tO#{Li  
} aC!EWgwW[  
} .WX,Nd3@  
^:KO_{3E  
} =sgdkAYwP  
F}Srn;V  
归并排序: X(Qu{HhI  
63 2bN=>  
package org.rut.util.algorithm.support; z wk.bf>m  
Y3Oz'%B  
import org.rut.util.algorithm.SortUtil; D#Kuo$  
^zr^ N?a  
/** `VT>M@i/  
* @author treeroot |^a;77nE_^  
* @since 2006-2-2 _mJG5(|  
* @version 1.0 o6a0'vU><  
*/ W\cjdd  
public class MergeSort implements SortUtil.Sort{ ,SUT~oETP  
)d`mvZBn1  
/* (non-Javadoc) Da.G4,vLh  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -SCM:j%h  
*/ 86 .`T l;  
public void sort(int[] data) { r.yK,  
int[] temp=new int[data.length]; Z>P*@S,6G  
mergeSort(data,temp,0,data.length-1); $_Nf-:D*  
} w0lT%CPx  
np9dM  
private void mergeSort(int[] data,int[] temp,int l,int r){ MYdO jcN  
int mid=(l+r)/2; `<frgXu64  
if(l==r) return ; [ f/I2  
mergeSort(data,temp,l,mid); -c*\o3)  
mergeSort(data,temp,mid+1,r); swcd&~9r  
for(int i=l;i<=r;i++){ O;uG?.\  
temp=data; `]i []|  
} %*}Y6tl'|  
int i1=l; "ju'UOcS/  
int i2=mid+1; iE].&>w  
for(int cur=l;cur<=r;cur++){ F@YKFk+a  
if(i1==mid+1) BuOgOYh9  
data[cur]=temp[i2++]; Fhf<T`  
else if(i2>r) EGVM)ur  
data[cur]=temp[i1++]; mtAE  
else if(temp[i1] data[cur]=temp[i1++]; ?C-Towo=i  
else 78 f$6J q  
data[cur]=temp[i2++]; WXw}^v  
} GVGlVAo|@  
} V3Z]DA  
x;s0j"`Jb  
} lLhL`C!  
QzvHm1,@  
改进后的归并排序: oUZoj2G1  
2JGL;U$  
package org.rut.util.algorithm.support; EgjR^A1W2  
XvTCK>1  
import org.rut.util.algorithm.SortUtil; hX:"QXx  
\ 0W!4D  
/** zUJZ`seF  
* @author treeroot h^UKT`9vt  
* @since 2006-2-2 #W>QY Tp  
* @version 1.0 <AH1i@4  
*/ +Vb8f["+-  
public class ImprovedMergeSort implements SortUtil.Sort { ^D%Za'  
zP\7S}p7%  
private static final int THRESHOLD = 10; R%Y`=pK>}  
GL Mm(  
/* .B2]xfo"`  
* (non-Javadoc) 3?I;ovsM  
* Pe73g%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >$WQxbwM(  
*/ NoE*/!Sr  
public void sort(int[] data) { ia@'%8  
int[] temp=new int[data.length]; (t+;O;  
mergeSort(data,temp,0,data.length-1); ZBT1Y.qA  
} 46@{5)Tq  
: 18KR*;p  
private void mergeSort(int[] data, int[] temp, int l, int r) { 1\*\?\T>_  
int i, j, k; /D&%v *~E  
int mid = (l + r) / 2; {76c%<`WaP  
if (l == r) HBS\<}  
return; 4`m~FNVS   
if ((mid - l) >= THRESHOLD) G 2bDf-1ew  
mergeSort(data, temp, l, mid); N["W I r  
else nAIo{ F  
insertSort(data, l, mid - l + 1); s#~GH6/  
if ((r - mid) > THRESHOLD) 8BOZh6BV  
mergeSort(data, temp, mid + 1, r); ,l YE  
else W!Hm~9fz  
insertSort(data, mid + 1, r - mid); ^&@w$  
tGvG  
for (i = l; i <= mid; i++) { -VxTx^)>  
temp = data; 4fk8*{Y  
} y;w x?1)  
for (j = 1; j <= r - mid; j++) { !* Ti}oIo&  
temp[r - j + 1] = data[j + mid]; x+ncc_2n&D  
} _.IxRk)T  
int a = temp[l]; o8/ ;;*  
int b = temp[r]; X+L) -d  
for (i = l, j = r, k = l; k <= r; k++) { @AHm!9?o  
if (a < b) { U$]|~41#  
data[k] = temp[i++]; 9{k97D/  
a = temp; ^k5ll=}  
} else { )'17r82a  
data[k] = temp[j--]; <h%O?mkC  
b = temp[j]; {;toI  
} 4#x5MM  
} $3`>{3x$  
} ;<yd^Xs  
'o|30LzYgQ  
/** @1.QEyXG  
* @param data SDu#Yt&mhh  
* @param l aRG2@5  
* @param i L pR''`2BT  
*/ p&+;w  
private void insertSort(int[] data, int start, int len) { 5^']+5_vb  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); *.L81er5~  
} kt`nbm|aw  
} /|#&px)G  
} 7+X:LA~U  
} "k]CW\H6z  
d ;vT ~;  
堆排序: 6"Bic rY  
$o$ maA0  
package org.rut.util.algorithm.support; d>;&9;)H  
2gO2jJlv  
import org.rut.util.algorithm.SortUtil; MZ Aij  
R|O8RlH  
/** u[nyW3MZ  
* @author treeroot }cT_qqw(f%  
* @since 2006-2-2 ,0x y\u  
* @version 1.0 ^Wxad?@  
*/ H*#s }9=kZ  
public class HeapSort implements SortUtil.Sort{ fRg`UI4w}  
?5_7;Ha  
/* (non-Javadoc) =FE|+!>PA  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) mM`wITy  
*/ 6-?66g mT  
public void sort(int[] data) { K>*a*[t0Sy  
MaxHeap h=new MaxHeap(); -S3MH1TZ  
h.init(data); $O9^SB  
for(int i=0;i h.remove(); Fx-8M!  
System.arraycopy(h.queue,1,data,0,data.length); 9U$EJN_G  
} ^G6RjJxqp8  
c478P=g=5  
private static class MaxHeap{ Yjx|9_|Xn  
v) vkn/:  
void init(int[] data){ h/~n\0,J/  
this.queue=new int[data.length+1]; _.L4e^N&UO  
for(int i=0;i queue[++size]=data; <n]x#0p  
fixUp(size); w)Covz'uf  
} @V03a )6,h  
} }CeCc0M  
LX^u_Iu   
private int size=0; u_ABt?'  
H54 R8O$  
private int[] queue; |SyMngIY  
r*Yi1j/  
public int get() { }Ho Qwy|&  
return queue[1]; >JiltF7H0  
} sQMFpIrr  
DGzw8|/(  
public void remove() { 6/rFHY2q  
SortUtil.swap(queue,1,size--); X7s `U5'l  
fixDown(1); ^tXJj:wtS  
} ]c! ;L5  
file://fixdown .A6(D$ O k  
private void fixDown(int k) { y~)1 1]'>  
int j; aH^RoG}  
while ((j = k << 1) <= size) { &^W|iXi#  
if (j < size %26amp;%26amp; queue[j] j++; I1PuHf Qs  
if (queue[k]>queue[j]) file://不用交换 xQUu|gtL4  
break; !Q#{o^{Y~  
SortUtil.swap(queue,j,k); lT(oL|{#P  
k = j; ;3' .C~   
} 8MSC.0   
} 0qX3v<+[6  
private void fixUp(int k) { Th=eNL]  
while (k > 1) { \hB5@e4i2  
int j = k >> 1; uDEvzk42  
if (queue[j]>queue[k]) ;VWAf;U;B  
break; $sEy%-  
SortUtil.swap(queue,j,k); 'Fmvu   
k = j; ?Wz8[u  
} eopD5  
} L'F<ev  
fl\ly `_  
} `QXErw  
3D2E?$dX  
} nw-I|PVTNa  
>Q(3*d >  
SortUtil: 3+XOZh8  
3`k;a1Z#O'  
package org.rut.util.algorithm; Y'ow  
'#k0a,<N  
import org.rut.util.algorithm.support.BubbleSort; |`cKD >  
import org.rut.util.algorithm.support.HeapSort; K"r*M.P>  
import org.rut.util.algorithm.support.ImprovedMergeSort; E2m8UBS  
import org.rut.util.algorithm.support.ImprovedQuickSort; qzTuxo0B  
import org.rut.util.algorithm.support.InsertSort; M8tRjNWS?  
import org.rut.util.algorithm.support.MergeSort; 3\B>lKhQ  
import org.rut.util.algorithm.support.QuickSort; vvm0t"|\  
import org.rut.util.algorithm.support.SelectionSort; hRCed4qA  
import org.rut.util.algorithm.support.ShellSort; /Z$&pqs!  
>/8yGBD  
/** QDu2?EYZq  
* @author treeroot d!$Z (W0  
* @since 2006-2-2 :53)N v  
* @version 1.0 nVi[  
*/ (2=Zm@Zp f  
public class SortUtil { kO}AxeQ  
public final static int INSERT = 1; +t?3T-@Ks  
public final static int BUBBLE = 2; Xwhui4'w  
public final static int SELECTION = 3; ( vca&wI!  
public final static int SHELL = 4; 9T1ZL5  
public final static int QUICK = 5; u,UmrR  
public final static int IMPROVED_QUICK = 6; ?#45wC  
public final static int MERGE = 7; 7Zh~lM  
public final static int IMPROVED_MERGE = 8; |>#{[wko  
public final static int HEAP = 9; O<,\^[x  
k3uit+ge }  
public static void sort(int[] data) { LbkF   
sort(data, IMPROVED_QUICK); 9o+)?1\  
} QDhOhGK  
private static String[] name={ JhLgCnm  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" AT%u%cE-  
}; Wr( y)D<y}  
= 17t- [  
private static Sort[] impl=new Sort[]{ D}mjN=Y  
new InsertSort(), FAj)OTI2S  
new BubbleSort(), +1D+]*t_?[  
new SelectionSort(), 3nhXZOO1  
new ShellSort(), HBMhtfWW  
new QuickSort(), M#8uv-L  
new ImprovedQuickSort(), ;S>])5<  
new MergeSort(), (Kv#m 3~  
new ImprovedMergeSort(), m8o(J\]  
new HeapSort() ]]*7\ :cb  
}; k@'#@ t  
s mnS DS  
public static String toString(int algorithm){ ~FN9 [aJF+  
return name[algorithm-1]; zaK#Z?V}  
} {$wjO7Glp  
D`$hPYK|_  
public static void sort(int[] data, int algorithm) { 8/=L2fNN[  
impl[algorithm-1].sort(data); dzDqZQY$  
} v^1pN>#%g  
BDjn !3  
public static interface Sort { ayfFVTy1d  
public void sort(int[] data); &8vCZN^  
} < Pky9o;  
MZT23 [+  
public static void swap(int[] data, int i, int j) { s[w6FXt  
int temp = data; ;oc&Hb  
data = data[j]; IWY;="  
data[j] = temp; 6,0_)O}\b  
} ;<(W% _  
} sk=-M8;\  
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:
3+5=?,请输入中文答案:八 正确答案:八