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
  • 7579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。 Lm|X5RVq  
插入排序: &[RU.Q!_H  
8:% R |b  
package org.rut.util.algorithm.support; /6zpVkV  
t {"iIz_S  
import org.rut.util.algorithm.SortUtil; Elp!,(+&6  
/** GU3/s&9  
* @author treeroot bY~v0kg  
* @since 2006-2-2 'EV  *-_k  
* @version 1.0 .LhmYbQ2WE  
*/ CiI: uU  
public class InsertSort implements SortUtil.Sort{ _w;+Jh  
:Y>] 6  
/* (non-Javadoc) L_mqC(vn  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) G 7]wg>*  
*/ kDq%Y[6Z  
public void sort(int[] data) { 3(+#^aw  
int temp; r%pFq1/'!  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 6t:c]G'J  
} n*~   
} ef&@aB  
} >e;STU  
Jt6J'MOq  
} ap^=CEf   
Q ~JKKq  
冒泡排序: 6# ";W2  
h&bV!M  
package org.rut.util.algorithm.support; ]Rh( =bg  
1fv~r@6s  
import org.rut.util.algorithm.SortUtil; i[{] LiP  
yrAzD=  
/** q-%KfZ@(|  
* @author treeroot lzG;F]  
* @since 2006-2-2 `HG19_Z  
* @version 1.0 b U]N^og^  
*/ _|3TC1N$n  
public class BubbleSort implements SortUtil.Sort{ K9Xd? ]a  
DA)v3Nd  
/* (non-Javadoc) =zeLs0s;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) WgJAr73 l  
*/ <C%-IZv$  
public void sort(int[] data) { Tki/ d\!+  
int temp; ~88 Tz+  
for(int i=0;i for(int j=data.length-1;j>i;j--){ e[mhbFf-  
if(data[j] SortUtil.swap(data,j,j-1); ,'CWt]OS'  
} 7&V^BW  
} yM:~{;HLF  
} h#>L:Wf5E  
} i i@1!o  
F.pHL)37  
} *}ee"eHs  
z-G7Y#  
选择排序: 4c[)}8\  
6BU0hV  
package org.rut.util.algorithm.support; ^>8]3@ Nh  
&17,]#3  
import org.rut.util.algorithm.SortUtil; t"/"Ge#a  
Xm:=jQn  
/** iWM7, =1+  
* @author treeroot ~}-p5q2  
* @since 2006-2-2 uuYH6bw*d  
* @version 1.0 #r.` V!=  
*/ %;(|KrUN  
public class SelectionSort implements SortUtil.Sort { _~ZQ b  
U@J/  
/* BX(d"z b<  
* (non-Javadoc) }&T<wm!  
* Of7) A  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I49l2>  
*/ >'-w %H/  
public void sort(int[] data) { ix7 e] )m(  
int temp; M1 ]6lg[si  
for (int i = 0; i < data.length; i++) { `bZU&A(`Be  
int lowIndex = i; Kwl qi]~  
for (int j = data.length - 1; j > i; j--) { *76viqY;dE  
if (data[j] < data[lowIndex]) { _lPl)8k  
lowIndex = j; ?3, 64[  
} )n}]]^Sc  
} 4ZJT[zi  
SortUtil.swap(data,i,lowIndex); )yNw2+ ~5  
} r` `i C5Ii  
} AqbT{,3yW  
c > mu)('U  
} R_>TEYZ  
hG~]~ )  
Shell排序: W]D`f8r9  
{nPkb5xbW  
package org.rut.util.algorithm.support; 1%hM8:)i_  
VUy)4*  
import org.rut.util.algorithm.SortUtil; J`+`Kq1T  
kyxSIQ^  
/**  9VUm=Z#`  
* @author treeroot |c oEBFG  
* @since 2006-2-2 -':"6\W  
* @version 1.0 2&gVZz  
*/ Xh0wWU*  
public class ShellSort implements SortUtil.Sort{ c[h'`KXJf-  
g/ l0}%  
/* (non-Javadoc) &=z1$ih>2\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) o7Cnyy#:  
*/ >2lAy:B5  
public void sort(int[] data) { ~w1{zxs  
for(int i=data.length/2;i>2;i/=2){ fs rg2:kQ  
for(int j=0;j insertSort(data,j,i); +(<n |~  
} <RoX|zJw  
} PUE'Rr(Q  
insertSort(data,0,1); )7I.N]=  
} :!I)r$  
JMirz~%ib  
/** }+{*, z  
* @param data y '_V/w s  
* @param j RD6h=n4B  
* @param i g<2lPH  
*/ r%y;8$/-  
private void insertSort(int[] data, int start, int inc) { E+m]aYu"  
int temp; 9B+ zJ Vte  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); V#zhG AMy.  
} kJurUDo  
} 3{Ek-{ 9  
} JA?,0S  
vn0cKz@  
} cXb @H#  
A]Q1&qM%  
快速排序: S2'`|uI  
vJTfo#C|  
package org.rut.util.algorithm.support; .*EOVo9S  
R0Ax$Cv{  
import org.rut.util.algorithm.SortUtil; ,5eH2W  
;&+[W(7Sy  
/** SRt$4EL21  
* @author treeroot V@#*``M,3  
* @since 2006-2-2 vh|Tb5W<  
* @version 1.0 5W[3_P+  
*/ IqhICC1V-  
public class QuickSort implements SortUtil.Sort{ +}c|O+6g  
CJMaltPp&  
/* (non-Javadoc) t+=12{9;f  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) QJM-`(  
*/ $[M} K  
public void sort(int[] data) { r/CEYEJ&X  
quickSort(data,0,data.length-1); U`bC>sCp  
} _W@,@hOH  
private void quickSort(int[] data,int i,int j){ )Lc<;=w'9  
int pivotIndex=(i+j)/2; 85r)>aCMn  
file://swap f MY;  
SortUtil.swap(data,pivotIndex,j); M^j<J0(O  
F!OOrW]p0  
int k=partition(data,i-1,j,data[j]); a%7"_{s1  
SortUtil.swap(data,k,j); ,+ns {ppn  
if((k-i)>1) quickSort(data,i,k-1); ;[{:'^n  
if((j-k)>1) quickSort(data,k+1,j); z:Xj_ `p  
{BFT  
} F5N>Uqr*oN  
/** [2GXAvXsT  
* @param data M1AZ}b c0]  
* @param i :DZLjC  
* @param j @9OeC O  
* @return G 2%  
*/ o &BPG@n  
private int partition(int[] data, int l, int r,int pivot) { OW+e_im}  
do{ YPF&U4CN  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Bii6Z@kS  
SortUtil.swap(data,l,r); sg3h i"Im  
} N<KKY"?I'  
while(l SortUtil.swap(data,l,r); {PN:bb  
return l; =4frP*H?  
} PHQ{-b?4t  
BN+V,W  
} !Oeq G  
N4I^.k<-A  
改进后的快速排序: <A#5v\{.;~  
G_V.H \w  
package org.rut.util.algorithm.support; JQ*D   
uz*d^gr}  
import org.rut.util.algorithm.SortUtil; E4Y "X  
wXc,FD$  
/** ~?FK ; (  
* @author treeroot )-0[ra]  
* @since 2006-2-2 o;ik Z*+*  
* @version 1.0 :fxWz%t  
*/ mWNR(()v  
public class ImprovedQuickSort implements SortUtil.Sort { 90Xt_$_}s  
CdX`PQ  
private static int MAX_STACK_SIZE=4096; >j&1?M2C  
private static int THRESHOLD=10; _FL<egK  
/* (non-Javadoc) Q/9a,85  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^g9}f  
*/ E9^(0\Z I  
public void sort(int[] data) { ^4+r*YvcM  
int[] stack=new int[MAX_STACK_SIZE]; ;LHDh_.pX  
pU M&"V  
int top=-1; $ I#7dJ"*  
int pivot; `Jn,IDq  
int pivotIndex,l,r; %/P=m-K  
'b8R#R\P  
stack[++top]=0; KuA>"X  
stack[++top]=data.length-1; 6dF$?I&  
jyNb(Z  
while(top>0){ ?#?e(mpo  
int j=stack[top--]; 2bWUa~%B  
int i=stack[top--]; -r!42`S  
+ Qt[1Xq  
pivotIndex=(i+j)/2; ]x1p!TSU  
pivot=data[pivotIndex]; ,,S9$@R  
K6E}";;  
SortUtil.swap(data,pivotIndex,j); <#>Oy&E  
"cwR^DoD&  
file://partition f:xUPH?+  
l=i-1; =KV@&Y^x4  
r=j; ?~!tM}X0:3  
do{ WS5A Y @(~  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); -<6v:Z  
SortUtil.swap(data,l,r); ]K7`-p~T  
} KL "Y!PN:  
while(l SortUtil.swap(data,l,r); 1:_=g#WH  
SortUtil.swap(data,l,j); p:B ]Ft  
~u! gUJ:  
if((l-i)>THRESHOLD){ j5zFDh1(  
stack[++top]=i; o"RJ.w:dn  
stack[++top]=l-1; T$u~E1  
} 7k `_#  
if((j-l)>THRESHOLD){ [ dGO,ndE  
stack[++top]=l+1; "r@G@pe  
stack[++top]=j; |B eA==  
} d^tVD`Fm  
*MI)]S  
} l1}R2lSEO  
file://new InsertSort().sort(data); jA,|JgN|n  
insertSort(data);  *. 8JP  
} ?!H)zz6y  
/** 3g;T?E  
* @param data YX_vv!-]  
*/ @YCv  
private void insertSort(int[] data) { zHV|-R  
int temp; L%f;J/  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); )U'yUUi  
} IdF$Ml#[h  
} 4Hk6b09  
} C,.-Q"juH  
HM):"  
} @m?{80;uQ  
>{QdMn  
归并排序: JPsSw  
@LcT-3u  
package org.rut.util.algorithm.support; qp\BV#E  
[yC"el6PM  
import org.rut.util.algorithm.SortUtil; ` VwN!B:  
Ae6("Oid  
/** ~6kJ~R4  
* @author treeroot & N;pH  
* @since 2006-2-2 l&3ki!  
* @version 1.0 PRwu  
*/ z>|)ieL  
public class MergeSort implements SortUtil.Sort{ *="m3:c'J  
9\>sDSCx  
/* (non-Javadoc) =5Wp&SM6  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |YRY!V_w  
*/ izf~w^/  
public void sort(int[] data) { VJg,~lQN#t  
int[] temp=new int[data.length]; SF^x=[ir  
mergeSort(data,temp,0,data.length-1); ,%Z&*n  
} SW#BZ3L  
XIRR Al(,  
private void mergeSort(int[] data,int[] temp,int l,int r){ H*rx{F?  
int mid=(l+r)/2; pqeL%="p;  
if(l==r) return ; H<Hrwy~  
mergeSort(data,temp,l,mid); Pcdf$a"`  
mergeSort(data,temp,mid+1,r); LE K/mCL  
for(int i=l;i<=r;i++){ 5z~\5x  
temp=data; \yG`Sfu2  
} 4>YU8/Rw  
int i1=l; ]~8v^A7u  
int i2=mid+1; U*qNix  
for(int cur=l;cur<=r;cur++){ q & b5g !  
if(i1==mid+1) TP{Gt.e  
data[cur]=temp[i2++]; ;E#\   
else if(i2>r) (z2Z)_6L*L  
data[cur]=temp[i1++]; d=y0yq{L  
else if(temp[i1] data[cur]=temp[i1++]; %[ /<+  
else f>z`i\1oO  
data[cur]=temp[i2++]; 5oJ Dux }  
} ^df x~C  
} G?/c/rG  
xr.XU'  
} ~ezCu_  
qm'b'!gq~  
改进后的归并排序: B+Z13;}B  
"yW&<7u1  
package org.rut.util.algorithm.support; SX+4 HJB  
%$TEDr!  
import org.rut.util.algorithm.SortUtil; q{E"pyt36R  
` 8UWE {  
/** x@m<Ym-  
* @author treeroot j{;|g%5t  
* @since 2006-2-2 VFSz-<L  
* @version 1.0 5m7b\Mak  
*/ QrC/ssf}  
public class ImprovedMergeSort implements SortUtil.Sort { k_?~<vTM  
*b"CPg/\  
private static final int THRESHOLD = 10; ;'HF'Z  
XsUUJuCG  
/* Yj|]Uff8O  
* (non-Javadoc) x2k*| =$  
* Obo_YE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) J>%t<xYf4  
*/ aD ESr?  
public void sort(int[] data) { Go <'  
int[] temp=new int[data.length]; 7F(5)Utt  
mergeSort(data,temp,0,data.length-1); V7C1FV2  
} :6lwO%=F  
gvyT-XI  
private void mergeSort(int[] data, int[] temp, int l, int r) { >'`Sf ?+|  
int i, j, k; j[XYj6*d  
int mid = (l + r) / 2; %8w9E=  
if (l == r) P+Z\3re  
return; "- eZZEl(  
if ((mid - l) >= THRESHOLD) w!`Umll2  
mergeSort(data, temp, l, mid); iYKU[UP?  
else [M:S`{SbY  
insertSort(data, l, mid - l + 1); #mLuU  
if ((r - mid) > THRESHOLD) ia4k:\  
mergeSort(data, temp, mid + 1, r); ntGq" o  
else })[($$f/  
insertSort(data, mid + 1, r - mid); ]1sNmi$T  
DZs^ 2Zc  
for (i = l; i <= mid; i++) { i8~$o:&HT  
temp = data; \H4U8)l  
} ~HmxEk9  
for (j = 1; j <= r - mid; j++) { O>V(cmqE`  
temp[r - j + 1] = data[j + mid]; }Hy ~i  
} XoItV  
int a = temp[l]; VVuR+=.&  
int b = temp[r]; i8~ r  
for (i = l, j = r, k = l; k <= r; k++) { JE!("]&  
if (a < b) { IgM v =^U  
data[k] = temp[i++]; yC !/PQ"  
a = temp; -$YJfQE6G  
} else { eko]H!Ov(  
data[k] = temp[j--]; maC>LBa2/  
b = temp[j]; >"("*3AO  
} w`gyE 6A  
} r,xmEj0E  
} E>pVn2|  
fbC~WV#  
/** ;6m;M63z  
* @param data .Yx_:h=u  
* @param l ZL_[4 Y  
* @param i 6y  Wc1  
*/ #3MKH8k&~  
private void insertSort(int[] data, int start, int len) { {TAw)!R~  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); \%5MAQS  
} r]LCvsVa  
} %8FN0  
} ut &/\k=N  
} 6 h'&6  
;7rv  
堆排序: 6G_<2bO  
u7=T(4a  
package org.rut.util.algorithm.support; YaL]>.;Z:"  
k+1gQru{d  
import org.rut.util.algorithm.SortUtil;  t;47(U  
#C*&R>IvY  
/** ]ii+S"U3  
* @author treeroot u) *Kws  
* @since 2006-2-2 WRpyr  
* @version 1.0 eVt1d2.O  
*/ +K{LQsR]  
public class HeapSort implements SortUtil.Sort{ K)[8 H~Lm  
G/{ ~_&t  
/* (non-Javadoc) 9%!dNnUk  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V'StvU  
*/ -Mf Q&U   
public void sort(int[] data) { z"379b7cN  
MaxHeap h=new MaxHeap(); w>979g  
h.init(data); ZK !A#Jm{  
for(int i=0;i h.remove(); T20VX 8gX  
System.arraycopy(h.queue,1,data,0,data.length); 7SS07$B  
} YD&_^3-XM  
KQmZ#W%2m  
private static class MaxHeap{ N 8t=@~]  
keCRvlZ4  
void init(int[] data){ /fwgqFVk  
this.queue=new int[data.length+1]; {exrwnIZj  
for(int i=0;i queue[++size]=data; A';QuWdT  
fixUp(size); {p/YCch,  
} ]vo_gKZ  
} Gr)-5qh  
9_huI'"p  
private int size=0; m{(+6-8|m  
NP_?f%(  
private int[] queue; K ,isjh2  
`|Fp^gM  
public int get() { :6Pad  
return queue[1];  CL3xg)x6  
} ;pZ[|  
3QCVgo i\  
public void remove() { q#[`KOPV  
SortUtil.swap(queue,1,size--); PC/!9s 0W  
fixDown(1); ~UPZ<  
} g.C5r]=+&  
file://fixdown }5bM1h#z  
private void fixDown(int k) { +nU.p/cK+\  
int j; 3-x%wD.  
while ((j = k << 1) <= size) { _T*AC.  
if (j < size %26amp;%26amp; queue[j] j++; LP<<'(l`  
if (queue[k]>queue[j]) file://不用交换 |t6~%6^8  
break; 3,6Ox45  
SortUtil.swap(queue,j,k); $H*/;`,\[  
k = j; -=5)NH t  
} .j?kEN?w  
} 0I%: BT  
private void fixUp(int k) { `ROG~0lN(  
while (k > 1) { <avQR9'&  
int j = k >> 1; 5H !y46z  
if (queue[j]>queue[k]) Tr.hmGU  
break; 5D' bJ6PO  
SortUtil.swap(queue,j,k); '`l K'5;  
k = j; &jf7k <^  
} )=_ycf^MC  
} Y &f\VNlT  
_>_j\b  
} @ 4UxRp6+  
QLr9dnA  
} PT]GJ<K/  
4hAJ!7[A.  
SortUtil: ZGz|m0b (  
o`?zF+M0  
package org.rut.util.algorithm; OJ3UE(,I=  
sb.J bE8  
import org.rut.util.algorithm.support.BubbleSort; AsxD}Nw[Z*  
import org.rut.util.algorithm.support.HeapSort; oln<yyDs   
import org.rut.util.algorithm.support.ImprovedMergeSort; 7%d8D>uw8  
import org.rut.util.algorithm.support.ImprovedQuickSort; qX6D1X1_  
import org.rut.util.algorithm.support.InsertSort; I%;Jpe  
import org.rut.util.algorithm.support.MergeSort; \l,rpVv5m  
import org.rut.util.algorithm.support.QuickSort; q7Es$zjX  
import org.rut.util.algorithm.support.SelectionSort; _vl}*/=Hc  
import org.rut.util.algorithm.support.ShellSort; 4JMiyiW&  
/q1s;I  
/** .-]R9KjR1J  
* @author treeroot !I8f#'p  
* @since 2006-2-2 .6.^G  
* @version 1.0 P&=lV}f  
*/ npH?4S-8G  
public class SortUtil { aC^$*qN-)  
public final static int INSERT = 1; ~5OL6Bi-q  
public final static int BUBBLE = 2; ai-n z-;  
public final static int SELECTION = 3; |jG~,{  
public final static int SHELL = 4; 1oY^]OD]W  
public final static int QUICK = 5; HW[L [&/  
public final static int IMPROVED_QUICK = 6; *e{PxaF!C  
public final static int MERGE = 7; tP(h9|[N  
public final static int IMPROVED_MERGE = 8; bcz-$?]  
public final static int HEAP = 9; ]?<n#=eW  
Y83GKh,*  
public static void sort(int[] data) { s&tE_  
sort(data, IMPROVED_QUICK); qVgd(?hJ#  
} h @/;`E[  
private static String[] name={ 2qU&l|>  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" s~L</Xvo  
}; 7P**:b  
<$i4?)f(  
private static Sort[] impl=new Sort[]{ 6mPm=I[oh  
new InsertSort(), 4s.]M>Yb  
new BubbleSort(), X.#oEmA ,P  
new SelectionSort(), NiSO'=y$n  
new ShellSort(), Xe1P- 6 0  
new QuickSort(), ^&[+H8$  
new ImprovedQuickSort(), ")UwkF  
new MergeSort(), ~[W#/kd1n  
new ImprovedMergeSort(), s"~5']8  
new HeapSort() P LR0#).n  
}; &|o$=Ad  
*l+Cl%e  
public static String toString(int algorithm){ wpo1  
return name[algorithm-1]; ^k/i-%k0  
} !m y8AWO'  
!xK=#pa  
public static void sort(int[] data, int algorithm) { eSy(~Y  
impl[algorithm-1].sort(data); 4na8  
} x]4Kkpqm  
+t!S'|C  
public static interface Sort { 0kDBE3i#  
public void sort(int[] data); R: Z_g !h  
} 1~yZ T  
#1/}3+=5B  
public static void swap(int[] data, int i, int j) { f~h~5  
int temp = data; Y`ihi,s`H  
data = data[j]; "v]%3i.* -  
data[j] = temp; D$r Uid  
} l54 m22pfv  
} vNDu9ovs-  
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:
10+5=?,请输入中文答案:十五