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
  • 8471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。 pxgVYr.  
插入排序: &m8Z3+Ea  
D g~L"  
package org.rut.util.algorithm.support; Z @d(0 z  
[44C`x[8M+  
import org.rut.util.algorithm.SortUtil;  V9cKl[  
/** GT3 ?)g{Z  
* @author treeroot -lDAxp6p  
* @since 2006-2-2 uqFYa bU  
* @version 1.0 (>usa||  
*/ iwS55o  
public class InsertSort implements SortUtil.Sort{ |z%:{  
c3]X#Qa#m$  
/* (non-Javadoc) 7ElU5I<S  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I {&8iUN  
*/ WPbG3FrL!  
public void sort(int[] data) { _oBJ'8R\  
int temp; >Ndck2@  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); #cdrobJ  
} 9#iv|X  
} 7w?V0pLwn8  
} N`1W"Rx!  
%{*)-_M  
} 4Ow0g-{  
5?M d  
冒泡排序: ^p}|""\j  
SoPiEq  
package org.rut.util.algorithm.support; H\!p%Y  
~P;KO40K  
import org.rut.util.algorithm.SortUtil; P<s 0f:".  
;.EW7`)Z  
/** Vq>$ZlvS  
* @author treeroot 4k4 d%  
* @since 2006-2-2 h#o?O k  
* @version 1.0 \#O}K  
*/ io{\+%;b~  
public class BubbleSort implements SortUtil.Sort{ [ :*Jn}  
3d81]!n  
/* (non-Javadoc) }{#ty uzAo  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4/:}K>S_  
*/ !gbPxfH:6  
public void sort(int[] data) { 4_&+]S  
int temp; <)am]+Lswy  
for(int i=0;i for(int j=data.length-1;j>i;j--){ \!Cc[n(f#  
if(data[j] SortUtil.swap(data,j,j-1); \:vHB!2E  
} bjCO@t  
} :+*q,lX8  
} pN?geF~t|  
} ]~!?(d!J/  
Al-;-t#Dc  
} PT/TQW  
@B#\3WNt  
选择排序: s. ]<r5v7  
sfKu7puc  
package org.rut.util.algorithm.support; (Xv' Te?  
Tt\h#E  
import org.rut.util.algorithm.SortUtil; |X6/Y@N  
vv0+F6 @  
/** %!X9>i>  
* @author treeroot [3|&!:4g6  
* @since 2006-2-2 Z(c3GmY  
* @version 1.0 'ugc=-0pd  
*/ 6)j4-  
public class SelectionSort implements SortUtil.Sort { {@YY8SKb9  
'h.:-1# L  
/* su\iUi  
* (non-Javadoc) aTLu7C\-e  
* INjr$'*  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2*)2c[/0F  
*/ R&MdwTa  
public void sort(int[] data) { VxA?LS`  
int temp; rK@XC +`S  
for (int i = 0; i < data.length; i++) { Vz @2_k   
int lowIndex = i; ~4^~w#R  
for (int j = data.length - 1; j > i; j--) { =&~7Q"  
if (data[j] < data[lowIndex]) { 9S_PZH  
lowIndex = j; U_[<,JE  
} 1XXuFa&  
} uw>O|&!  
SortUtil.swap(data,i,lowIndex); [Zxv&$SQ  
} Q}6!t$Vk  
} 1O,:fTG<  
,*MA teD  
} #ExNiFZ  
ms%RNxU4:  
Shell排序: hteAuz4H  
UYw=i4J'  
package org.rut.util.algorithm.support; ' Ih f|;r  
z&KrG  
import org.rut.util.algorithm.SortUtil; JG/Pc1aK  
#AO?<L  
/** 0(|Yy/Yq  
* @author treeroot  Qo$j'|lD  
* @since 2006-2-2 BL[N  
* @version 1.0 CFTw=b@  
*/ 9,c_(%C  
public class ShellSort implements SortUtil.Sort{ tN1xZW:  
zN3b`K. i  
/* (non-Javadoc) L'L[Vpx  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) euiP<[|h=  
*/ n4sO#p)'  
public void sort(int[] data) { r?2EJE2{V  
for(int i=data.length/2;i>2;i/=2){ ;k |U2ajFJ  
for(int j=0;j insertSort(data,j,i); z)Gd3C  
} DmtCEKa  
} -\[H>)z]RB  
insertSort(data,0,1); Kg6[  
} e%_J O7  
f1w_Cl  
/** YG_|L[/#  
* @param data PK).)5sW  
* @param j -qqI @+u+  
* @param i f"RS,]  
*/ 4..M *U  
private void insertSort(int[] data, int start, int inc) { N3(.7mxo  
int temp; l9t|@9  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); v|Y ut~  
} B&L-Lc2  
} cw"Ou%  
} B? Z_~Bf&  
9T#${NK  
} K;Fs5|gFU  
A@<a')#>)  
快速排序: ?Gqq]ozm  
CuT50N;tk  
package org.rut.util.algorithm.support; r t0_[i  
l=PZlH y1G  
import org.rut.util.algorithm.SortUtil; A9_} RJ9  
c> 0R_  
/** dt||nF  
* @author treeroot IqAML|C  
* @since 2006-2-2 0fzHEL  
* @version 1.0 ^D8~s;?  
*/ p?2^JJpUb  
public class QuickSort implements SortUtil.Sort{ \,S4-~(:!  
/b7]NC%  
/* (non-Javadoc) 92x)Pc^D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ]?%S0DO*  
*/ g{^~g  
public void sort(int[] data) { +Ly@5y"  
quickSort(data,0,data.length-1); b4&l=^:e=  
} ?DGg.2f  
private void quickSort(int[] data,int i,int j){ E?- ~*T  
int pivotIndex=(i+j)/2; HA74s':FN  
file://swap 0[])wl  
SortUtil.swap(data,pivotIndex,j); &u2H^ j  
x n=#4:f  
int k=partition(data,i-1,j,data[j]); %uw7sGz\  
SortUtil.swap(data,k,j); p1UYkmx[  
if((k-i)>1) quickSort(data,i,k-1); UvR.?js(O  
if((j-k)>1) quickSort(data,k+1,j); sBk|KG  
8b!xMFF"  
} AO238RC!:  
/** N*+L'bO  
* @param data OcLahz6  
* @param i )G),iy  
* @param j F0kdwN4;  
* @return k+BY3a  
*/ ]P/i}R:  
private int partition(int[] data, int l, int r,int pivot) { :s*t\09V7  
do{ K7R!E,oPg  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 2m^qXE$  
SortUtil.swap(data,l,r); I0*N "07n  
} X-*LA*xbN  
while(l SortUtil.swap(data,l,r); H'+3<t>  
return l; !dq$qUl/  
} *ze,X~8-  
V|G*9^Y  
} UD=[::##  
qP0UcG  
改进后的快速排序: D"gv:RojD  
C8W_f( i~  
package org.rut.util.algorithm.support; OS-k_l L  
f0879(,i  
import org.rut.util.algorithm.SortUtil; $zM \Jd  
(&SPMhs_|(  
/** #(QS5J&Qq  
* @author treeroot +Sc2'z>R  
* @since 2006-2-2 pg Q^w0BQV  
* @version 1.0 ^5Zka!'X2Z  
*/ . '>d7  
public class ImprovedQuickSort implements SortUtil.Sort { 7g$*K0m`  
Y-lwS-Ii  
private static int MAX_STACK_SIZE=4096; x_t$*  
private static int THRESHOLD=10; ^ WF_IH&  
/* (non-Javadoc) aLl=L_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %l,CJd5  
*/ 7K ~)7U  
public void sort(int[] data) { Hy5 6@jW+E  
int[] stack=new int[MAX_STACK_SIZE]; 6LrI,d  
_Wq;bKG  
int top=-1; 31\mF\{V  
int pivot; Z;S)GUG^  
int pivotIndex,l,r; G5%k.IRz  
_0BQnzC=  
stack[++top]=0; jn`5{ ]D  
stack[++top]=data.length-1; #"8'y  
\H&;.??W  
while(top>0){ E@EP9X >  
int j=stack[top--]; &c}2[=  
int i=stack[top--]; PjofW%7F  
I@5$<SN  
pivotIndex=(i+j)/2; YC$>D? FW  
pivot=data[pivotIndex]; =d+`xN*  
0"Euf41  
SortUtil.swap(data,pivotIndex,j); cc3/XBo  
3-oKY*jO  
file://partition [)?9|yY"`  
l=i-1; e,Z[Nox  
r=j; zJ$U5r/u  
do{ M N (o  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 6VS_L@  
SortUtil.swap(data,l,r); \TYVAt] ?  
} wwv+s~(0  
while(l SortUtil.swap(data,l,r); &*bpEdkZ  
SortUtil.swap(data,l,j); v_WF.sb~  
f'bwtjO  
if((l-i)>THRESHOLD){ ~!M"  
stack[++top]=i; Nf)SR#;  
stack[++top]=l-1; =dwy 4  
} ]"^ p}:  
if((j-l)>THRESHOLD){ =v0w\( ?N  
stack[++top]=l+1; 2a;[2':  
stack[++top]=j; QyY<Zi;6  
} sgnc$x"  
;VEKrVD  
} < 2fy(9y  
file://new InsertSort().sort(data); Yg}b%u,Q  
insertSort(data); o^'QGs "  
} $d,/(*Y#-  
/** pFV~1W:  
* @param data uH(M@7"6_!  
*/ ^x$1Nf  
private void insertSort(int[] data) { ,B /b>i  
int temp; \%9QE  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Q,Y^9g"B`~  
} E^A!k=>  
} .|Yn[?(  
} +~* e B  
z_=V6MDM  
} )| |CU]"b?  
?*[35XUd  
归并排序: g7lPQ_A*  
;Wa&Dg/5`  
package org.rut.util.algorithm.support; Jl6lZd(Np  
x <OVtAUB  
import org.rut.util.algorithm.SortUtil; ^w&!}f+  
X4!Jj *  
/** gyPwNE  
* @author treeroot fW[RCd  
* @since 2006-2-2 rVRv*W  
* @version 1.0  D F=Rd#  
*/ gX$gUB) x  
public class MergeSort implements SortUtil.Sort{ ms\\R@R  
6!USSipn  
/* (non-Javadoc) jW4>WDN:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5y] %Cu1.u  
*/ *=!r|UdB.  
public void sort(int[] data) { ]g }5p4*&  
int[] temp=new int[data.length]; G{O{ p  
mergeSort(data,temp,0,data.length-1);  (^B=>  
} ?>I  
lgD %  
private void mergeSort(int[] data,int[] temp,int l,int r){ t @a&&  
int mid=(l+r)/2; | +uc;[`  
if(l==r) return ; i)Q d>(v  
mergeSort(data,temp,l,mid); T\ukJ25!  
mergeSort(data,temp,mid+1,r); 0P{8s  
for(int i=l;i<=r;i++){ "!fwIEG  
temp=data; Ed{sC[j=  
} 3lEP:Jp  
int i1=l; aT+w6{%Z  
int i2=mid+1; /d/]#T[Z9  
for(int cur=l;cur<=r;cur++){ ksJ 1:_  
if(i1==mid+1) ImD&~^-_<  
data[cur]=temp[i2++]; 86!$<!I  
else if(i2>r) $ER9u2  
data[cur]=temp[i1++]; ]0SqLe  
else if(temp[i1] data[cur]=temp[i1++]; g[ uf e<  
else O(9*VoD  
data[cur]=temp[i2++]; gjFQDrz(  
} -N6ek`  
} :XoR~syT  
d0f(Uk  
} L@_o*"&j  
PfB9 .f{  
改进后的归并排序: *~*"p)`<  
!4<A|$mQ  
package org.rut.util.algorithm.support; k*C[-5&#  
*UXa.kT@  
import org.rut.util.algorithm.SortUtil; \PFjw9s  
,H<nNBv 3M  
/** feeHXKD|  
* @author treeroot 1'iQlnMO@  
* @since 2006-2-2 >6@,L+-6r  
* @version 1.0 &3x da1H  
*/ ?^^TR/  
public class ImprovedMergeSort implements SortUtil.Sort { uq7/G|  
^#K^WV  
private static final int THRESHOLD = 10; skTtGz8R[  
.7:ecFKk  
/* R9D2cu,{  
* (non-Javadoc) 6+"gk(  
* &p*rEs  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) j~>J?w9<O  
*/ R6:m@  
public void sort(int[] data) { ipt]qJFd  
int[] temp=new int[data.length]; 8Bh micU  
mergeSort(data,temp,0,data.length-1); hd[t&?{=  
} }odjaM}5Nc  
%K7;ePu  
private void mergeSort(int[] data, int[] temp, int l, int r) { rY1jC\  
int i, j, k; @xso{$z?j  
int mid = (l + r) / 2; eb6y-TwY  
if (l == r) 1,U)rx$H  
return; 0]$-}AYM  
if ((mid - l) >= THRESHOLD) 0>e]i[P.  
mergeSort(data, temp, l, mid); %nE%^Enw  
else <]|!quY<*  
insertSort(data, l, mid - l + 1); yX%> %#$  
if ((r - mid) > THRESHOLD) 8<KC-|y.  
mergeSort(data, temp, mid + 1, r); 4cJ/XgX  
else *,*XOd:3TL  
insertSort(data, mid + 1, r - mid); gw%L M7yQR  
HCe/!2Y/%  
for (i = l; i <= mid; i++) { FFmXT/K"/j  
temp = data; ,OP\^  
} 4!-R&<TLve  
for (j = 1; j <= r - mid; j++) { Z@$'fX?~9  
temp[r - j + 1] = data[j + mid]; `Hv"^o  
} i }Zz[b  
int a = temp[l]; E @Rb+8},"  
int b = temp[r]; * kUb[  
for (i = l, j = r, k = l; k <= r; k++) { a5d_= :S ;  
if (a < b) { TV0Y{x*~iH  
data[k] = temp[i++]; y&\t72C$Fi  
a = temp; sb1tQ=u[  
} else { oYJ<.Yxeb  
data[k] = temp[j--]; cf*~G x_l  
b = temp[j]; JS<w43/j  
} Ad>@8^  
} $?VYHkX  
} qLKL*m  
#SjCKQ~  
/** De>,i%`Q,D  
* @param data -lq`EB +  
* @param l 0m\( @2E  
* @param i HzuG- V  
*/ m`Z.xIA7;  
private void insertSort(int[] data, int start, int len) { ycvgF6Me<  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); +JXn   
} A_2lG!! 6  
} v;}MHl  
} CP$,fj  
} ~3-+~y=o~  
?[WUix;  
堆排序: -yu$Mm  
k)8*d{*  
package org.rut.util.algorithm.support; Yfs eX;VX  
)|5mW  
import org.rut.util.algorithm.SortUtil; =KD[#au6a  
t#-4edB,  
/** +Q[SddI  
* @author treeroot M-F{I%Vx  
* @since 2006-2-2 KF!d?  
* @version 1.0 l2wu>Ar7.  
*/ d>r]xXB6  
public class HeapSort implements SortUtil.Sort{ J*ZcZ FbWN  
nvc(<Ovw  
/* (non-Javadoc) hQNUA|Q=%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h7m$P^=U  
*/ &Wk:>9]Jrb  
public void sort(int[] data) { kKDf%=  
MaxHeap h=new MaxHeap(); o4LVG  
h.init(data); C8 }=fa3u  
for(int i=0;i h.remove(); vNZ"x)?  
System.arraycopy(h.queue,1,data,0,data.length); e ]2GAJLI  
} Z7?\ >4V  
%j{*`}  
private static class MaxHeap{ Eq8:[o  
"avG#rsH  
void init(int[] data){ R?}%rP+^e  
this.queue=new int[data.length+1]; ]!/R tt  
for(int i=0;i queue[++size]=data; P86wRq  
fixUp(size); vAOThj)  
} Wkr31Du\K  
} Vy c  
qS ggZ0*  
private int size=0; PfhKomt"  
"{~^EQq,  
private int[] queue; J'L6^-gV  
SaRn>n\  
public int get() { +HD2]~{EkL  
return queue[1]; U> <$p{ )  
} gzlRK^5  
UjyrmQf  
public void remove() { +vV?[e  
SortUtil.swap(queue,1,size--); 0[8uuqV[cB  
fixDown(1); fN9uSnu  
} TIF  =fQ  
file://fixdown Wi~?2-!  
private void fixDown(int k) { }b{7+ + Ah  
int j; +]~}kvk:  
while ((j = k << 1) <= size) { hxw6^EA  
if (j < size %26amp;%26amp; queue[j] j++; GK3cQw  
if (queue[k]>queue[j]) file://不用交换 :01B)~^  
break; @Yw42`> !s  
SortUtil.swap(queue,j,k); e{^lD.E  
k = j; '?3(&  
} y7'9KQ  
} uNqN &7g  
private void fixUp(int k) { <^ratz!-  
while (k > 1) { ItZ*$I1<  
int j = k >> 1; gXY]NWI  
if (queue[j]>queue[k]) SR<W3a\  
break; tU>7 jo[-p  
SortUtil.swap(queue,j,k); Oz "_KMz  
k = j; "K;""]#wg0  
} '=Acg"aT  
} tQTjqy{K  
#;;A~d:V  
} ':f,RG  
P"[{s^mb  
}  KcpQ[6\  
a?X@ D<.;  
SortUtil: v[jg|s&6"  
3wPUP+)c7  
package org.rut.util.algorithm; >3I|5kZ6  
^t`0ul]c  
import org.rut.util.algorithm.support.BubbleSort; y6H`FFqK  
import org.rut.util.algorithm.support.HeapSort; }5Km \OI  
import org.rut.util.algorithm.support.ImprovedMergeSort; @jZ1WHS_a  
import org.rut.util.algorithm.support.ImprovedQuickSort; f'Oj01[  
import org.rut.util.algorithm.support.InsertSort; 9j 0o)]  
import org.rut.util.algorithm.support.MergeSort; <uo@k'   
import org.rut.util.algorithm.support.QuickSort; jm'^>p,9G  
import org.rut.util.algorithm.support.SelectionSort; -"x@V7X  
import org.rut.util.algorithm.support.ShellSort; \J-D@b;  
/U0,%  
/** FvD/z ;N  
* @author treeroot ~h3~<p#M`  
* @since 2006-2-2 E[FE-{B#  
* @version 1.0 KvO5-g  
*/ zkd^5A; `  
public class SortUtil { =yPV9#(I/  
public final static int INSERT = 1; &WS'Me  
public final static int BUBBLE = 2; ;RMevVw|  
public final static int SELECTION = 3; "cvhx/\1#  
public final static int SHELL = 4; g]d0B!Ar~  
public final static int QUICK = 5; >^ E*7Bfp  
public final static int IMPROVED_QUICK = 6; |!CAxE0d$B  
public final static int MERGE = 7; :xY9eq=  
public final static int IMPROVED_MERGE = 8; 0aJcX)  
public final static int HEAP = 9; f7;<jj;w7  
#W4 "^#2  
public static void sort(int[] data) { T5dnj&N ]  
sort(data, IMPROVED_QUICK); F><ficT  
} CbOCL~ "  
private static String[] name={ x X.{(er  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" s'BlFB n  
}; 7s Gf_`Z  
P]2V~I/X  
private static Sort[] impl=new Sort[]{ &#!1 Y[e^  
new InsertSort(), a/[)A _-  
new BubbleSort(), l;B  
new SelectionSort(), `(E$-m-~jH  
new ShellSort(), '*<I<? z;  
new QuickSort(), _s}`ohKvD  
new ImprovedQuickSort(), .d?LRf  
new MergeSort(), O0eM*~zI  
new ImprovedMergeSort(), @]Ac >&  
new HeapSort() a.a ,_  
}; ;R$2+9  
! %N@>[  
public static String toString(int algorithm){ VL|Z+3L  
return name[algorithm-1]; Q!r` G  
} Zb:Z,O(vn  
D[Q/:_2l  
public static void sort(int[] data, int algorithm) { 2G_]Y8  
impl[algorithm-1].sort(data); MHA_b^7?  
} k:N/-P&+  
dfh 1^Go  
public static interface Sort { yI / FD  
public void sort(int[] data); Zh`[A9I/  
} KxWm63"  
0g#xQzE  
public static void swap(int[] data, int i, int j) { Y+5aT(6O  
int temp = data; bGxHzzU}  
data = data[j]; D&qJ@PR  
data[j] = temp; @gw8r[  
} I__ a}|T%  
} M C y~~DL  
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
批量上传需要先选择文件,再选择上传
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八