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
  • 6098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。 ! E5HN :#  
插入排序: Tv=mgH=b  
2- h{N  
package org.rut.util.algorithm.support; _8J.fT$${  
o[w:1q7  
import org.rut.util.algorithm.SortUtil; @n /nH?L  
/** &`r-.&Y  
* @author treeroot iHf$  
* @since 2006-2-2 ()?(I?II  
* @version 1.0 lgy <?LI\  
*/ R+z2}}Z!`  
public class InsertSort implements SortUtil.Sort{ ;`{H!w[D  
BwpqNQN  
/* (non-Javadoc) U9 s&  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) MJO-q $)c  
*/ |SSSH  
public void sort(int[] data) { $8h%a 8I  
int temp;  7xlkZF  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); L`TLgH&?R  
} )dw'BNz5hT  
} )2o?#8J  
} 4F:\-O  
~G&dqw/.-U  
} SKN`2hD  
_;y9$"A  
冒泡排序: ]s'as9s9  
RbnVL$c  
package org.rut.util.algorithm.support; uH^-R_tQ  
;H*T^0  
import org.rut.util.algorithm.SortUtil; V f&zL Sgr  
<n$'voR7]  
/** .~;\eW[  
* @author treeroot :3Ox~o  
* @since 2006-2-2 ? OM!+O  
* @version 1.0 M7~2iU<#  
*/ Wn2NMXK  
public class BubbleSort implements SortUtil.Sort{ ]_gU#,8  
q<|AZ2Ai  
/* (non-Javadoc) JH9J5%sp  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) K\r8g=U  
*/ J/$&NWF  
public void sort(int[] data) { Zu[su>\  
int temp; 3nQ`]5.Q w  
for(int i=0;i for(int j=data.length-1;j>i;j--){ M6j y\<a  
if(data[j] SortUtil.swap(data,j,j-1); $6 f3F?y7  
} "KpGlY?^  
} =dKtV.L  
} %tGO?JMkd  
} 1))8 A@,  
 }my`K  
} 6cXyJW  
I\ob7X'Xu!  
选择排序: g) jYFfGfH  
^09,"<@k  
package org.rut.util.algorithm.support; W|mo5qrLS2  
0GeTS Fj  
import org.rut.util.algorithm.SortUtil; #\m<Sz5Gp#  
f]CXu3w(J  
/**  qX{+oy5  
* @author treeroot %h!B^{0  
* @since 2006-2-2 q/,O\,  
* @version 1.0 :vbW  
*/ e9 B064  
public class SelectionSort implements SortUtil.Sort { ?e 4/p  
b ]KBgZ  
/* 4kx N<]  
* (non-Javadoc) a:w#s}bL  
* xA*<0O\V  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ' `Hr}  
*/ Dlvz )  
public void sort(int[] data) { ;4\;mmLVk  
int temp; dy[X3jQB  
for (int i = 0; i < data.length; i++) { [7y]n;Fy  
int lowIndex = i; Q$"D]!G  
for (int j = data.length - 1; j > i; j--) { J|73.&B  
if (data[j] < data[lowIndex]) { w}L[u r;I_  
lowIndex = j; ;$g?T~v7  
} "w<#^d_6  
} sYA1\YIii  
SortUtil.swap(data,i,lowIndex); !4+<<(B=E  
} [nq@mc~<  
} h<QY5=S F  
9\(| D#  
} $F.a><1rY  
iy.\=Cs$N  
Shell排序: X:{!n({r=  
[:*)XeRK  
package org.rut.util.algorithm.support; m1AJ{cs  
f|g g  
import org.rut.util.algorithm.SortUtil; \9EjClf o  
J'r^/  
/** H\[W/"  
* @author treeroot lyhiFkO iH  
* @since 2006-2-2 u*9V&>o  
* @version 1.0 U6s[`H3I{  
*/ veECfR;  
public class ShellSort implements SortUtil.Sort{ ~g t@P  
$ocdI5  
/* (non-Javadoc) #g!.T g'  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y_P!B^z3  
*/ _@/8gPT*i  
public void sort(int[] data) { Flb&B1  
for(int i=data.length/2;i>2;i/=2){ ]]yO1x$Kk  
for(int j=0;j insertSort(data,j,i); 3Zh)]^  
} <OPArht  
} V(*(F7+  
insertSort(data,0,1); /qw.p#  
} RD&PDXT4  
m#p'iU*va,  
/** Rf 1x`wml  
* @param data x,Vr=FB  
* @param j / XIhj  
* @param i U m+8"W  
*/ bZV/l4TU  
private void insertSort(int[] data, int start, int inc) { a' IdYW0  
int temp; :BT q!>s  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); zx7{U8*`<  
} yV(\R  
} Aiea\j Bv  
} [ikOb8 G#  
8~gLqh8^V  
} qIqM{#' ^  
bN@ l?w  
快速排序: )dSi/  
DlNX 3  
package org.rut.util.algorithm.support; _J[P[(ab  
;9g2?-svw  
import org.rut.util.algorithm.SortUtil; #3d(M  
wlmRe`R  
/** 8Q+36!  
* @author treeroot 5/z/>D;  
* @since 2006-2-2 _<2E"PrT   
* @version 1.0 >lM l  
*/ lb1Xsgm{  
public class QuickSort implements SortUtil.Sort{ 0 0U> F  
7J&4akT{9  
/* (non-Javadoc) BFW&2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g$o&Udgs  
*/ jlg(drTo  
public void sort(int[] data) { 2dgd~   
quickSort(data,0,data.length-1); ~< x:q6  
} k-""_WJ~^  
private void quickSort(int[] data,int i,int j){ ;ovP$ vl>  
int pivotIndex=(i+j)/2; s&J]zb`  
file://swap FU<Jp3<%  
SortUtil.swap(data,pivotIndex,j); /|&*QLy  
5nVt[Puw  
int k=partition(data,i-1,j,data[j]); FNId ;  
SortUtil.swap(data,k,j); w)jISu;RG  
if((k-i)>1) quickSort(data,i,k-1); <_KIK  
if((j-k)>1) quickSort(data,k+1,j); {cw /!B  
$xdy&  
} ]]j;/TiG  
/** ,wdD8ZT'Ip  
* @param data Lq!>kT<]!  
* @param i ROZF)|l  
* @param j -RK- Fu<e  
* @return 8kDp_s i  
*/ !_Z&a  
private int partition(int[] data, int l, int r,int pivot) { W'u>#  
do{ *s iFj CN<  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ;mKb]  
SortUtil.swap(data,l,r); `n?DU;,  
} Nu~lsWyRI5  
while(l SortUtil.swap(data,l,r); &Z|P2dI  
return l; 1]/.` ]1  
} j^2j& Ta  
KdbHyg<4  
} d4z/5Oa  
&~U ]~;@  
改进后的快速排序: {U !g.rh  
}?v )N).kW  
package org.rut.util.algorithm.support; K@w{"7}  
b9dLt6d  
import org.rut.util.algorithm.SortUtil; delu1r  
t}tEvh  
/** K8Y=S12Ti  
* @author treeroot ?#UO./"  
* @since 2006-2-2 I?G :p+  
* @version 1.0 `%WU8Yv  
*/ )q3p-)@kQ  
public class ImprovedQuickSort implements SortUtil.Sort { *% @h(js  
nwCrZW  
private static int MAX_STACK_SIZE=4096; 1|-Dj|  
private static int THRESHOLD=10; Qv/=&_6  
/* (non-Javadoc) TBU&6M>{3  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "OnGE$   
*/ u!qP  
public void sort(int[] data) { 8 uwq-/$  
int[] stack=new int[MAX_STACK_SIZE]; XAL1|] S  
AbmAKA@  
int top=-1; e'D&8z_;  
int pivot; dL )<% o  
int pivotIndex,l,r; b(O3@Q6[  
5iyd Z  
stack[++top]=0; WlBc.kFck  
stack[++top]=data.length-1; $[=%R`~w  
= 6\^%  
while(top>0){ ;cN{a&  
int j=stack[top--]; xAMW-eF?d  
int i=stack[top--]; x39<6_?G  
HEc+;O1<  
pivotIndex=(i+j)/2; , ^f+^^  
pivot=data[pivotIndex]; q;>7*Y&  
#';:2Nyq  
SortUtil.swap(data,pivotIndex,j); pgZXJ  
agW@ {c  
file://partition aM0f/"-_  
l=i-1; WWHoi{ q  
r=j; G?/DrnK:  
do{ =]Jd9]vi  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); A#'8X w|  
SortUtil.swap(data,l,r); Px`!A EFd[  
} L"Olwwmk  
while(l SortUtil.swap(data,l,r); L"*/:$EJL.  
SortUtil.swap(data,l,j); `t'W2X  
EV@X*| w  
if((l-i)>THRESHOLD){ uw +M  
stack[++top]=i; XaPV9 4  
stack[++top]=l-1; Qtv&ijFC  
} G..aiA  
if((j-l)>THRESHOLD){ :I^;jdL  
stack[++top]=l+1; :\7X}n*&  
stack[++top]=j; HLaRGN3,  
} t+T4-1 3a  
/9p wZ%:<  
} Ob`d  
file://new InsertSort().sort(data); 3/W'V,5G6  
insertSort(data); #O} ,`[<  
} 3r."j2$Hs0  
/** HqD^B[ jS  
* @param data !sW(wAy?o  
*/ I5n^,@md  
private void insertSort(int[] data) { @wo(tf=@P  
int temp; !1{e|p 7  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); %Ax3;g#  
} 8MzVOF{"  
} E`de7  
} T@&K- UQ  
p &"`RS #Z  
} H0`]V6+<f  
Jx](G>F4f1  
归并排序: ``\i58K{e  
Ne{?:h.!  
package org.rut.util.algorithm.support; RA'M8:$  
r@t9Ci=}  
import org.rut.util.algorithm.SortUtil; ,*hLFaR-  
bITPQ7+  
/** 6BbGA*%{  
* @author treeroot nR}sNl1  
* @since 2006-2-2 ADP%QTdqFJ  
* @version 1.0 @As[k2  
*/ VE {3}S  
public class MergeSort implements SortUtil.Sort{ ,<tX%n`v=  
Vjp1RWb  
/* (non-Javadoc) evAMJ=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #_J@-f7^  
*/ > BY&,4r  
public void sort(int[] data) { 9m<jcxla$  
int[] temp=new int[data.length]; dx &'fe*?  
mergeSort(data,temp,0,data.length-1); o9%)D<4M  
} [nc4{0aT'  
&d+Kg0:  
private void mergeSort(int[] data,int[] temp,int l,int r){ : $Y9jR  
int mid=(l+r)/2; 2w_WAdi  
if(l==r) return ; -tHU6s,  
mergeSort(data,temp,l,mid); ICs\ z  
mergeSort(data,temp,mid+1,r); w' OXlR  
for(int i=l;i<=r;i++){ :xD=`ib  
temp=data; /<}m? k\  
} xA 1hfe.9  
int i1=l; X*39c b(b  
int i2=mid+1; ang~<  
for(int cur=l;cur<=r;cur++){ /X(t1+  
if(i1==mid+1) j =WST  
data[cur]=temp[i2++]; Fpa ;^F  
else if(i2>r) jJY"{foWV  
data[cur]=temp[i1++]; +~roU{& o  
else if(temp[i1] data[cur]=temp[i1++]; *R3f{/DK  
else I8/DR z$A  
data[cur]=temp[i2++]; iz?tu: \v&  
} :GW&O /Yo  
} Nwt" \3  
2eC(Ijq[a  
} *l;B\=KR  
c`WHNky%j  
改进后的归并排序: 8&~~j7p,  
X 9%'|(tL  
package org.rut.util.algorithm.support; ~r$jza~o(  
+$(2:S*r  
import org.rut.util.algorithm.SortUtil; <Ib[82PU  
_~tEw.fM5  
/** \eb|eN0i  
* @author treeroot E}_[QEY;Y  
* @since 2006-2-2 4jBC9b}O  
* @version 1.0 QgD g}\P  
*/ HXYRH  
public class ImprovedMergeSort implements SortUtil.Sort { !$Tw^$n  
|),'9  
private static final int THRESHOLD = 10; kbfC|5S  
~$f;U  
/* !\#_Jw%y  
* (non-Javadoc) C?=P  
* RUUk f({(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~+bGN  
*/ @]c(V%x   
public void sort(int[] data) { P"?FnTbv[  
int[] temp=new int[data.length]; e)IpPTj#  
mergeSort(data,temp,0,data.length-1); f%)zg(YlO  
} ]I.n\2R]om  
iy\nio`  
private void mergeSort(int[] data, int[] temp, int l, int r) { 6^n0[7  
int i, j, k; m6yIR6H  
int mid = (l + r) / 2; L0]_hxE?  
if (l == r) }Jh: 8BNuP  
return; GK}'R=   
if ((mid - l) >= THRESHOLD) P;8>5;U4-  
mergeSort(data, temp, l, mid); T<joR R  
else r-IVb&uF b  
insertSort(data, l, mid - l + 1); <{:  
if ((r - mid) > THRESHOLD) 9Sq%s&  
mergeSort(data, temp, mid + 1, r); Lru-u:  
else %77p5ctW  
insertSort(data, mid + 1, r - mid); 1?Aga,~k:a  
p|/j4@-h  
for (i = l; i <= mid; i++) { $W42vjr4  
temp = data; qxMnp}O  
} #W2[  
for (j = 1; j <= r - mid; j++) { LsGiu9~S  
temp[r - j + 1] = data[j + mid]; LFp]7Dq  
} ~; OYtz  
int a = temp[l]; /_-;zL  
int b = temp[r]; rf9_eP  
for (i = l, j = r, k = l; k <= r; k++) { HFQR ;9]  
if (a < b) { daAyx-  
data[k] = temp[i++]; "$5\,  
a = temp; }T0K^Oe+eS  
} else { xg{HQQ|TC  
data[k] = temp[j--]; >(tn"2  
b = temp[j]; a)! g7u  
} tNmy& nsA  
} |"$uRV=qm  
} rt+..t\  
%im#ww L%  
/** +>g`m)?p  
* @param data I#FF*@oeM  
* @param l MY nH2w]  
* @param i Er:?M_ev  
*/ {sv{847V  
private void insertSort(int[] data, int start, int len) { dd7 =)XT+  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); B7-RU<n  
} qq0?e0H  
} h#Ce_,o  
} -#A:`/22  
} 6=PiVwI  
8xI`jE"1  
堆排序: g.#+z'l  
jV7&Y.$zF]  
package org.rut.util.algorithm.support; JK~ m(oQ  
 D\T!4q'Q  
import org.rut.util.algorithm.SortUtil; U06o ;s(  
8h?X!2Nq  
/** ~k4W<   
* @author treeroot  i j&p4  
* @since 2006-2-2 N^elVu4 K  
* @version 1.0 }Pg' vJW  
*/ LE c8NQs  
public class HeapSort implements SortUtil.Sort{ 1 2]fQkp  
0B0G2t&hr  
/* (non-Javadoc) ":d*dl  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) e.6Dl_  
*/ O5 7jz= r  
public void sort(int[] data) { H$-$2?5  
MaxHeap h=new MaxHeap(); It 2UfW  
h.init(data); TIRHT`"i  
for(int i=0;i h.remove(); 2Yyb#Ow  
System.arraycopy(h.queue,1,data,0,data.length); +|nsu4t,<  
} .Y/-8H-3v  
-Q`C q |s  
private static class MaxHeap{ 6hbEO-(  
'}O!2W&Y]%  
void init(int[] data){ NFoZ4R1gy  
this.queue=new int[data.length+1]; owMuT^x?  
for(int i=0;i queue[++size]=data; P6OM)>C  
fixUp(size); KHJ=$5r)  
} 712=rUI%!  
} _XN~@5elrC  
w?ai,Pw  
private int size=0; FYeEG  
t61'LCEis  
private int[] queue; gLCz]D.'  
^X;JT=r  
public int get() { Z)v)\l9d  
return queue[1]; \2eFpy(  
} chwh0J;  
mSj76' L#  
public void remove() { 2wOy}:  
SortUtil.swap(queue,1,size--); #HcI4j:s!  
fixDown(1); ArdJ."  
} 7+] F^ 6  
file://fixdown @5*xw1B  
private void fixDown(int k) { bG1 ofsU  
int j; 3z$\&& BR  
while ((j = k << 1) <= size) { <d<RK@2-  
if (j < size %26amp;%26amp; queue[j] j++; AuM:2N2  
if (queue[k]>queue[j]) file://不用交换 1'OD3~[R  
break; _9qEZV  
SortUtil.swap(queue,j,k); W)  
k = j; 'v`~(9'Rcj  
} Kk56/(_S  
} a:xgjUt&5  
private void fixUp(int k) { V?WMj $l<  
while (k > 1) { c; d"XiA  
int j = k >> 1; n%8#?GC`  
if (queue[j]>queue[k]) z+2u-jG  
break; nvwDx*[qN  
SortUtil.swap(queue,j,k); +"G(  
k = j; Fj48quW1\P  
} zVn*!c  
} iPJ9Gh7  
\c'%4Ao  
} ="=#5C  
5D >BV *"  
} /!o1l\i=5  
|4LQ\'N&  
SortUtil: 8:BQHYeJK  
Ld'EABM  
package org.rut.util.algorithm; xQ_:]\EZ  
@b>YkJDk  
import org.rut.util.algorithm.support.BubbleSort; nN!vgn j  
import org.rut.util.algorithm.support.HeapSort; -!JlM@  
import org.rut.util.algorithm.support.ImprovedMergeSort; .Lp Nm'=R  
import org.rut.util.algorithm.support.ImprovedQuickSort; RbyF#[}  
import org.rut.util.algorithm.support.InsertSort; `=PB2'  
import org.rut.util.algorithm.support.MergeSort; `mWQWx$V!  
import org.rut.util.algorithm.support.QuickSort; ejDCmD  
import org.rut.util.algorithm.support.SelectionSort; ~&vA_/M  
import org.rut.util.algorithm.support.ShellSort; ,OFq'}q  
/ N*HE  
/** &P{o{  
* @author treeroot ]Sk#a-^~  
* @since 2006-2-2 I>(;bNgN E  
* @version 1.0 19pND m2H1  
*/ GC,vQ\  
public class SortUtil { B=r]_&u-u  
public final static int INSERT = 1; {.0X[uAf  
public final static int BUBBLE = 2; 1,!\7@<CT  
public final static int SELECTION = 3; 3S|;yOl#X  
public final static int SHELL = 4;  KGwL09)  
public final static int QUICK = 5; _N#3lU?  
public final static int IMPROVED_QUICK = 6; IMw)X0z  
public final static int MERGE = 7; P\0%nyOG(%  
public final static int IMPROVED_MERGE = 8; 9nAK6$/  
public final static int HEAP = 9; 2*DS_=6o  
V>j`  
public static void sort(int[] data) { v7u}nx  
sort(data, IMPROVED_QUICK); mqc Z3lsv  
} (mr` ?LI}  
private static String[] name={ [|O6n"'  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" &{{f|o=u.  
}; BjJ gQ`X  
}ucg!i3C  
private static Sort[] impl=new Sort[]{ 2l4i-;  
new InsertSort(), Y]0y -H  
new BubbleSort(), qinQ5t  
new SelectionSort(), yj9gN}+  
new ShellSort(), {!bJ.O l  
new QuickSort(), T0)y5  
new ImprovedQuickSort(), UimZ/\r  
new MergeSort(), `3s-\>  
new ImprovedMergeSort(), -T6%3>h  
new HeapSort() =W^L8!BE'  
}; >~InO^R`5  
7ij=%if2@k  
public static String toString(int algorithm){ 5E(P,!-.  
return name[algorithm-1]; -^"?a]B  
} aJ@qB9(ZBe  
LA0x6E+I  
public static void sort(int[] data, int algorithm) { a{.n(M  
impl[algorithm-1].sort(data); EmoU7iy  
} )fr\ V."  
m,q<R1  
public static interface Sort { x"T^>Q  
public void sort(int[] data); +:Zi(SuS]  
} ^: j:;\;  
7[ji,.7  
public static void swap(int[] data, int i, int j) { ]gk1h=Y~h  
int temp = data; Lj,%pzJ  
data = data[j]; >GRuS\B  
data[j] = temp; oI/ThM`=q  
} F9hWB17u  
} vBXr[XoC  
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
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八