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
  • 7728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。 2pEr s|r  
插入排序: NiQ_0Y}  
4 u!)QG  
package org.rut.util.algorithm.support; y QxzFy  
y BwgLn  
import org.rut.util.algorithm.SortUtil; _Hn-bp[?>  
/** -mlBr63Bj  
* @author treeroot ~]_g q;bG  
* @since 2006-2-2 Hki  
* @version 1.0 gE>_:s   
*/ AF}6O(C~  
public class InsertSort implements SortUtil.Sort{ ^%V^\DK  
<g|\]\C|  
/* (non-Javadoc) J`*!U4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P<@V  
*/ { ke}W  
public void sort(int[] data) { y JJNr]oq  
int temp; pPNU0]/  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); VYb6#sl  
} Rs<li\GS  
} CE19V:zp  
} "r Bb2.  
!vB8Pk"  
} cZ{-h  
Qb}1tn)  
冒泡排序: #R<ErX)F  
qd=&*?  
package org.rut.util.algorithm.support; _{fh/{b1  
M7|k"iz v  
import org.rut.util.algorithm.SortUtil; o+o'!)  
([y2x.kd  
/** t<Iy `r7 1  
* @author treeroot QN!$41A?{  
* @since 2006-2-2 =N5~iMorD-  
* @version 1.0 J_]B,' 6  
*/ )zzK\I6/EQ  
public class BubbleSort implements SortUtil.Sort{ dVh*  a  
=@F1J7  
/* (non-Javadoc) "w#jC ~J<W  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^{3,ok*Nf  
*/ y6 bl&_  
public void sort(int[] data) { ~|_s2T  
int temp; &R\t<X9 n  
for(int i=0;i for(int j=data.length-1;j>i;j--){ UE2!,Z,  
if(data[j] SortUtil.swap(data,j,j-1); SLyeonM-C  
} dX4"o?KD>  
} Bg"KNg  
} vN`2KCl~3  
} ev}lb+pr)_  
KiXRBFo  
} T) ZO+}  
>l & N  
选择排序: owz6j:  
5C}1iZEJ  
package org.rut.util.algorithm.support; 8reis1]2S  
#nTzn2  
import org.rut.util.algorithm.SortUtil; q2o`.f+I  
$e bx  
/** A2fc_A/a  
* @author treeroot gLyXe,Jp  
* @since 2006-2-2 p ~/  
* @version 1.0 C,2k W`[V  
*/ CK<Wba  
public class SelectionSort implements SortUtil.Sort { =0Z^q0.  
i&%~:K*  
/* ;L <D-=  
* (non-Javadoc) 7+!4pf  
* 0X.(BRI~6p  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p$mx  
*/ f6\`eLGi1  
public void sort(int[] data) { #H0-Fwo  
int temp; fl8~*\;Xu  
for (int i = 0; i < data.length; i++) { 5G >{*K/  
int lowIndex = i; 3`%]3qd}  
for (int j = data.length - 1; j > i; j--) {  `7v"(  
if (data[j] < data[lowIndex]) { ;\[n{<   
lowIndex = j; +7<W.Zii  
} :5YL!D/&  
} 7gX#^YkE+k  
SortUtil.swap(data,i,lowIndex); Rm^3K   
} 8%eWB$<X  
} O[$,e%  
<_o).hE{  
} 0| a,bwZ  
|` N|S  
Shell排序: 2=\} 0  
8h,>f#)0c  
package org.rut.util.algorithm.support; 0Yzm\"Ggv  
<$ "   
import org.rut.util.algorithm.SortUtil; ?@*hU2MTC  
0bl?dOV{  
/** 50< QF  
* @author treeroot +4*3aWf`  
* @since 2006-2-2 (_9u<  
* @version 1.0 `RF0%Vm~t  
*/ \LN!k-c  
public class ShellSort implements SortUtil.Sort{ (uW$ch@2K  
K:<j=j@51  
/* (non-Javadoc) UrMEL; @g  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !_yWe  
*/ bR\Oyd~e  
public void sort(int[] data) { G!G]*p5  
for(int i=data.length/2;i>2;i/=2){ Y8%bk2  
for(int j=0;j insertSort(data,j,i); h4 X=d5qd  
} R^hlfKnt  
} fk6`DUBV  
insertSort(data,0,1); ~;V5*t  
} V*Q!J{lj^#  
q6]T;)U&  
/** d-rqZn}  
* @param data  @mD$Z09~  
* @param j z^FJ  
* @param i 0x Er`]]U  
*/ xlP0?Y1Bl  
private void insertSort(int[] data, int start, int inc) { z]49dCN  
int temp; 0XSMby?t`  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); +jPJv[W  
} S/2lK*F  
} J4woZ{d  
} \ cr)O^&  
Jv8JCu"eky  
} _?I6[Mz  
9OS~;9YR  
快速排序: 59l9^<{A  
o..iT:f;n  
package org.rut.util.algorithm.support; -U BH,U  
:'$V7LZ5  
import org.rut.util.algorithm.SortUtil; 8 U<$u,WS  
hWz/PK,  
/** <1pRAN0  
* @author treeroot SR$?pJh D%  
* @since 2006-2-2 @UK%l :L  
* @version 1.0 Oj F]K,$  
*/ '3uN]-A>D  
public class QuickSort implements SortUtil.Sort{ _, r6t  
ev[!:*6P  
/* (non-Javadoc) Jwtt&" c0.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .5E6 MF  
*/ kTfE*We9  
public void sort(int[] data) { aInh?-  
quickSort(data,0,data.length-1); !CUy{nV  
} K&{ruHoKB  
private void quickSort(int[] data,int i,int j){ 1]wo    
int pivotIndex=(i+j)/2; ~5;2ni8n  
file://swap *G"}m/j-  
SortUtil.swap(data,pivotIndex,j); AT -  
,opS)C$  
int k=partition(data,i-1,j,data[j]); er0y~  
SortUtil.swap(data,k,j); %%{f-\-7Ig  
if((k-i)>1) quickSort(data,i,k-1); ,R7RXpP7t  
if((j-k)>1) quickSort(data,k+1,j); VfT@;B6ALF  
] A,Og_g  
} 8=,?B h".  
/** x4CSUcKb  
* @param data HXP/2&|JY  
* @param i QD;:!$Du  
* @param j v@1f,d  
* @return wl0i3)e:  
*/ {O_`eS  
private int partition(int[] data, int l, int r,int pivot) { n%d7`?tm4  
do{ \y0]BH  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); T( CTU/a-,  
SortUtil.swap(data,l,r); >f:OU,"  
} Dq<!wtFG[  
while(l SortUtil.swap(data,l,r); ja%IGaH;s  
return l; Z!z#+G  
} >/9Qgyc 0  
=GL^tAUJ  
} >@.:9}Z  
{S"!c.  
改进后的快速排序: suFO~/lRno  
.GiQC {@9w  
package org.rut.util.algorithm.support; $p\0/  
feT.d +Fd  
import org.rut.util.algorithm.SortUtil; **~1`_7~*  
;BW-ag \9  
/** 7xfN}iHG  
* @author treeroot zC WN,K`  
* @since 2006-2-2 MmW]U24s  
* @version 1.0 %5Zhq>  
*/ R[!%d6jDE  
public class ImprovedQuickSort implements SortUtil.Sort { B18?)LA  
2T-3rC)  
private static int MAX_STACK_SIZE=4096; 4=ZN4=(_[  
private static int THRESHOLD=10; N3&n"w _d  
/* (non-Javadoc) f"d4HZD^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) GQ1m h*4$  
*/ |K'7BK_^J  
public void sort(int[] data) { g acE?bW'  
int[] stack=new int[MAX_STACK_SIZE]; N3|aNQ=X0  
DX<xkS[P  
int top=-1; otJHcGv  
int pivot; pTE.,~-J^j  
int pivotIndex,l,r; FfibR\dhY  
T#=&oy7  
stack[++top]=0; ]MRQcqbpqL  
stack[++top]=data.length-1; ? W2W y\  
G~19Vv*;  
while(top>0){ X  m%aT  
int j=stack[top--]; b)+;@wa~  
int i=stack[top--]; Ov|Uux  
ufXU  
pivotIndex=(i+j)/2; .ot[_*A.FD  
pivot=data[pivotIndex]; Q) Y&h'.(  
jrm L>0NZ  
SortUtil.swap(data,pivotIndex,j); LO;Z3Q>#0  
xXNL UP  
file://partition ul ag$ge  
l=i-1; 'sN (=CQ  
r=j; o,DI7sb  
do{ ?ubIh.d  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); H^0`YQJ3  
SortUtil.swap(data,l,r); b`X"yg+  
} YhJ*(oWL  
while(l SortUtil.swap(data,l,r); Y )9]I6n7  
SortUtil.swap(data,l,j); a3(q;^v  
tC'@yX  
if((l-i)>THRESHOLD){ q@&.)sLPgO  
stack[++top]=i; he1OLk  
stack[++top]=l-1; =U<6TP]{  
} [iT#Pu5  
if((j-l)>THRESHOLD){ Vv5#{+eT;  
stack[++top]=l+1; qC$h~Epp4  
stack[++top]=j; D4W^{/S  
} X~5kgq0"  
U{~R39  
} "\u_gk{g  
file://new InsertSort().sort(data); DeL7sU  
insertSort(data); Q]2v]PJ6"  
} qra5&Fvb  
/** *Wmn!{\g  
* @param data hu''"/raM  
*/ 7s-ZRb[)1  
private void insertSort(int[] data) { K/+w6d  
int temp; <j$n7#qk  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); p?+*R@O  
} czHbdEh  
} _'47yq^O  
} 84$#!=v  
8I*WVa$l  
} "lJ [H=\  
.}zpvr8YP  
归并排序: v5!G/TZ1  
p 6FPdt)  
package org.rut.util.algorithm.support; 6 su^yt  
}n91aE3v  
import org.rut.util.algorithm.SortUtil; 4)=\5wJDg1  
_laLTP*  
/** :~1p  
* @author treeroot #`9D,+2iB%  
* @since 2006-2-2 -8r9DS -/W  
* @version 1.0 (1my9k5C  
*/ t!"XQ$g'  
public class MergeSort implements SortUtil.Sort{ $5;RQNhXh  
CH/*MA  
/* (non-Javadoc) 7>Oa, \  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (}C%g{8  
*/ z|gG%fM  
public void sort(int[] data) { Cyw cJ  
int[] temp=new int[data.length]; M;i4ss,}!  
mergeSort(data,temp,0,data.length-1); iqj ZC80  
} 4vk^=  
=_/,C  
private void mergeSort(int[] data,int[] temp,int l,int r){ ja2PmPv  
int mid=(l+r)/2; 5Se S^kJC  
if(l==r) return ; K(M@#t1_&  
mergeSort(data,temp,l,mid); &E>zvRBQ  
mergeSort(data,temp,mid+1,r); ] EzX$T  
for(int i=l;i<=r;i++){ Q*+_%n1 /  
temp=data; Fq<;-  
} A%G \ AT  
int i1=l; /}Z0\ ,  
int i2=mid+1; /{~cUB,Um  
for(int cur=l;cur<=r;cur++){ (HUGgX"=  
if(i1==mid+1) .7HnWKUV  
data[cur]=temp[i2++]; n./onv  
else if(i2>r) 96.A8o  
data[cur]=temp[i1++]; jR^>xp;  
else if(temp[i1] data[cur]=temp[i1++]; W1UG\d`2  
else ^'|\8  
data[cur]=temp[i2++]; kOfu7Zj  
} *1L;%u| [  
} VS#i>nlT  
Y(D@B|"'m  
} ]g/% w3G  
7b2N'^z}  
改进后的归并排序: S|8O$9{x9q  
C<.t'|  
package org.rut.util.algorithm.support; A|BvRZd  
7]q$ sQ  
import org.rut.util.algorithm.SortUtil; =%:mZ@x'  
Q-[^!RAK?  
/** 1f 0"z1   
* @author treeroot uW&P1 'X  
* @since 2006-2-2 }31z 35  
* @version 1.0 `nO!_3  
*/ }{^i*T5rl  
public class ImprovedMergeSort implements SortUtil.Sort { iz`u@QKc%  
-4JdK O  
private static final int THRESHOLD = 10; `'u|4pRFs  
N~ -N Q  
/* Zcg=a_  
* (non-Javadoc) `A\ !Gn?   
* #]ii/Et#x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) JF>mybB  
*/ BPnZ"w_  
public void sort(int[] data) { n8zh;vuJ  
int[] temp=new int[data.length]; A$RN7#  
mergeSort(data,temp,0,data.length-1); dG|srgk+  
} lqOv_q  
zxCxGT\;  
private void mergeSort(int[] data, int[] temp, int l, int r) { %Gn(b 1X  
int i, j, k; L4aT=of-  
int mid = (l + r) / 2; l_LfVON  
if (l == r) uU`zbh}]L.  
return; Rww"Z=F  
if ((mid - l) >= THRESHOLD) 5:f}bW*  
mergeSort(data, temp, l, mid); C ,Je>G  
else Q]7Q4U  
insertSort(data, l, mid - l + 1); ]?U:8%  
if ((r - mid) > THRESHOLD) |B4dFI?  
mergeSort(data, temp, mid + 1, r);  @4_CR  
else io:?JnQSA  
insertSort(data, mid + 1, r - mid); Zx<s-J4o=w  
knypSgk_  
for (i = l; i <= mid; i++) { (@`+Le  
temp = data; '<m[  
} * Yov>lO  
for (j = 1; j <= r - mid; j++) { n$}c+1   
temp[r - j + 1] = data[j + mid]; lp?geav  
} w IT`OT6Q  
int a = temp[l]; Vm&fw".J  
int b = temp[r]; 4 !~JNO  
for (i = l, j = r, k = l; k <= r; k++) { +98~OInySZ  
if (a < b) { h vGb9  
data[k] = temp[i++]; dW!T.S  
a = temp; l4u`R(!n5  
} else { Kd;|Z  
data[k] = temp[j--]; u9m"{KnV  
b = temp[j]; Czb@:l%sc  
} [m!\ZK  
} Old5E&  
} =g/K>B  
 2c!?!:s  
/** Aye!@RjM8  
* @param data 61T"K  
* @param l 0_qqBL.4  
* @param i ^#exs Xy  
*/ ,_YCl09p(  
private void insertSort(int[] data, int start, int len) { EEn}Gw  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); sh}=#eb  
} j4H,*fc  
} 62%. ddM4  
} fVo)# Bj  
} &^qD<eZ!Eq  
Tp[ub(/;7  
堆排序: Hc^b}A y7  
X,x{!  
package org.rut.util.algorithm.support; ZxbWgM5rm  
%S.R@C[3  
import org.rut.util.algorithm.SortUtil; $+S'Boo   
im%'S6_X4  
/**  $C(}  
* @author treeroot z9&$Xao  
* @since 2006-2-2 398}a!XM  
* @version 1.0 qN}0$x>p  
*/ WZ@nuK.39T  
public class HeapSort implements SortUtil.Sort{ ~+QfP:G  
e][U ;  
/* (non-Javadoc) cL<  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _hAp@? M  
*/ vy1:>N?#5  
public void sort(int[] data) { M<~z=B#  
MaxHeap h=new MaxHeap(); MBXumc_g  
h.init(data); ,V.X-`Y  
for(int i=0;i h.remove(); >UZfi u  
System.arraycopy(h.queue,1,data,0,data.length); V8`t7[r  
} VCNg`6!x  
+<|6y46  
private static class MaxHeap{ !m' lOz  
@lDoMm,m'  
void init(int[] data){ wC`])z}bT  
this.queue=new int[data.length+1]; m+"?;;s  
for(int i=0;i queue[++size]=data; l`~*" 4|/  
fixUp(size); qx5.LiF  
} B;2os^*  
} 4}!riWR   
oOmPbAY  
private int size=0; q *mNVBy  
#fRhG^QKp  
private int[] queue; j0Kj>  
|t!kD(~r  
public int get() { Tc T%[h!  
return queue[1]; + ( `  
} ]xCJ3.9  
 #dtYa  
public void remove() { bezT\F/\  
SortUtil.swap(queue,1,size--); zVd2kuI&?  
fixDown(1); &BFW`5N  
} |K,9EM3  
file://fixdown XWf8ZZj  
private void fixDown(int k) { bT|a]b:  
int j; O1ofN#u  
while ((j = k << 1) <= size) { +=)< Su.  
if (j < size %26amp;%26amp; queue[j] j++; \=kH7 !  
if (queue[k]>queue[j]) file://不用交换 g G>1  
break; qb]n{b2  
SortUtil.swap(queue,j,k); 4askQV &hj  
k = j; hJ (Q^Z  
} S1E =E5  
} lQ<2Vw#Yl  
private void fixUp(int k) { J{ P<^<m_  
while (k > 1) { j#f+0  
int j = k >> 1; +?w 7Nm`  
if (queue[j]>queue[k]) m.iCGX  
break; d(3F:dbk  
SortUtil.swap(queue,j,k); {Kx eH7S  
k = j; 9TIyY`2!  
} GvF8S MO[x  
} Hzcy '  
[ >O4hifq  
} <Bn^+u\  
n#uH^@#0  
} 5|my}.TR  
w},' 1  
SortUtil: ig4wwd@|  
I= G%r/3  
package org.rut.util.algorithm; vIF=kKl9,  
w,bILv)  
import org.rut.util.algorithm.support.BubbleSort; X^r5su?  
import org.rut.util.algorithm.support.HeapSort; iS&~oj_-%  
import org.rut.util.algorithm.support.ImprovedMergeSort; 0#pjfc `:  
import org.rut.util.algorithm.support.ImprovedQuickSort; !C * %,Ak  
import org.rut.util.algorithm.support.InsertSort; g]EDL<b  
import org.rut.util.algorithm.support.MergeSort; Gtd!Y x  
import org.rut.util.algorithm.support.QuickSort; h!5^d!2,  
import org.rut.util.algorithm.support.SelectionSort; gh=s#DQsFw  
import org.rut.util.algorithm.support.ShellSort; gcqcY  
J]UlCg  
/** J~eY,n.6]  
* @author treeroot {_0Efc=7  
* @since 2006-2-2 8Y*SZTzV  
* @version 1.0 t j&+HC  
*/ qR4('  
public class SortUtil { LTj;e[  
public final static int INSERT = 1; }YW0?-G.$  
public final static int BUBBLE = 2; )f1<-a"D|  
public final static int SELECTION = 3; )^7Y^u e  
public final static int SHELL = 4; F`S OF O  
public final static int QUICK = 5; ML'4 2z Y  
public final static int IMPROVED_QUICK = 6; vpcHJ^19  
public final static int MERGE = 7; vDZhoD=VR  
public final static int IMPROVED_MERGE = 8; P*oKcq1R  
public final static int HEAP = 9; o90SXa&l/  
s\i=-`  
public static void sort(int[] data) { 06"p ^#  
sort(data, IMPROVED_QUICK); |-4C[5rM  
} EF=.L{  
private static String[] name={ x|i"x+o  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" Ev* b  
}; 'bGL@H  
)W95)]  
private static Sort[] impl=new Sort[]{ + 5H9mk  
new InsertSort(), \?c0XD  
new BubbleSort(), "'h?O*V]u{  
new SelectionSort(), RmxgCe(2a  
new ShellSort(), 3p{N7/z(  
new QuickSort(), CXks~b3SD  
new ImprovedQuickSort(), <9 lZ%j;  
new MergeSort(), @GqPU,RO  
new ImprovedMergeSort(), 4b=hFwr[?  
new HeapSort() fN~kd m.  
}; kF.!U/C  
F+,X%$A#?  
public static String toString(int algorithm){ QLH&WF  
return name[algorithm-1]; bhe~ekb  
} *6^|i}  
jIJVl \i]  
public static void sort(int[] data, int algorithm) { =MDir$1Z  
impl[algorithm-1].sort(data); [tsi8r =T  
} RR!(,j^M  
^I3cU'X  
public static interface Sort { 6eE%x?#  
public void sort(int[] data); J~KWn.  
} ;l> xXSB7$  
w]GoeIg({  
public static void swap(int[] data, int i, int j) { GHj1G,L@\  
int temp = data; #q`[(`Bx  
data = data[j]; IGv_s+O-*  
data[j] = temp; (Z5=GJM?$  
} z_R^n#A~r  
} C-d|;R}Ww  
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