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
  • 5984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。 t>|N4o  
插入排序: R{y{  
WuQ<AS=   
package org.rut.util.algorithm.support; $j2)_(<A%Q  
+mW$D@Pf  
import org.rut.util.algorithm.SortUtil;  #=~1hk  
/** TOF62,  
* @author treeroot 3V!&y/c<  
* @since 2006-2-2 D$!p+Q  
* @version 1.0 + T-zf@j  
*/ NF.6(PG|  
public class InsertSort implements SortUtil.Sort{ V +<AG*[  
nXaX=  
/* (non-Javadoc) (<~ R[sT|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >oaEG5%d  
*/ L<>NL$CrN  
public void sort(int[] data) { NHVx!Kc  
int temp; *RE-K36m|u  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); |[7$) $  
} nZ+5@( *  
} Zg f||,  
} bRe*(  
S aq>o.  
} v?"ee&Y6  
?-&D'  
冒泡排序: c5+lm}R?  
yacGJz^f=  
package org.rut.util.algorithm.support; MxA'T(Ay  
W ]MJ!4  
import org.rut.util.algorithm.SortUtil; qvT+d l3#[  
}Fe{s;  
/** _<}5[(qu  
* @author treeroot naCI55Wx  
* @since 2006-2-2 V>j`  
* @version 1.0 f9=X7"dzP  
*/ )KQv4\0y<  
public class BubbleSort implements SortUtil.Sort{ Bo(l!G  
9NXiCP9A  
/* (non-Javadoc) .wn_e=lT  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tpzdYokh >  
*/ RKb3=} *C  
public void sort(int[] data) { m)2hl~o_  
int temp; wyEgm:Vt  
for(int i=0;i for(int j=data.length-1;j>i;j--){ [!efQap  
if(data[j] SortUtil.swap(data,j,j-1); -"fq34v  
} CKw)J}z  
} <Y'YpH`l  
} w3UJw  
} _ShJ3\,K  
/4BXF4ksi,  
} )@|Fh@|  
=C2C~Xd  
选择排序: PBnn,#  
b<cM[GaV~  
package org.rut.util.algorithm.support; n.>'&<H>9  
\-id[zKb  
import org.rut.util.algorithm.SortUtil; T0)y5  
*fX)=?h56  
/** K1nwv"  
* @author treeroot R@aT=\u+  
* @since 2006-2-2 9+|,aG s  
* @version 1.0 IoX 9yGq  
*/ -T6%3>h  
public class SelectionSort implements SortUtil.Sort { >{=RQgGy  
YAG3PWmD  
/* ADUI@#vk  
* (non-Javadoc) ")buDU6_  
* <4bo7XH  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .]l2)OlLQ  
*/ OB@t(KNx*P  
public void sort(int[] data) { -^"?a]B  
int temp; &y+*3,!n8  
for (int i = 0; i < data.length; i++) { H;L&G|[  
int lowIndex = i; J0plQDe  
for (int j = data.length - 1; j > i; j--) { +zPg`/  
if (data[j] < data[lowIndex]) { R7b*(33  
lowIndex = j; f|E'eFrFk  
} 0~+:~$VrT  
} tC~itU=V  
SortUtil.swap(data,i,lowIndex); 0R%58,R  
} x"T^>Q  
} F+r6/e6a  
2p[3Ap  
} {<8#T`I  
= F<`-6  
Shell排序: %/C[\w p81  
'FXZ`+r|  
package org.rut.util.algorithm.support; _/\H3  
Y>~zt -  
import org.rut.util.algorithm.SortUtil; cK@K\AE  
#<3\}*/  
/** l!'iLq"K(  
* @author treeroot )j*qGsOg  
* @since 2006-2-2 :UciFIa  
* @version 1.0 ["/x~\c'N  
*/ U\6DEnII?!  
public class ShellSort implements SortUtil.Sort{ |sAg@kM  
AV! cCQ  
/* (non-Javadoc) ,"ZlY}!Gn  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) w!M ^p&T7  
*/ 4(IP  
public void sort(int[] data) { r&RSQHa)  
for(int i=data.length/2;i>2;i/=2){ g H.^NO5\'  
for(int j=0;j insertSort(data,j,i); rP_)*)  
} J6P Tkm}^  
} q;JQs:U!  
insertSort(data,0,1); ;hDr+&J|  
} HPB1d!^  
)YnN9"8  
/** mYX) =B{  
* @param data $Yc9><i  
* @param j ^f]pK&MAmN  
* @param i WLb7]rCTp  
*/ @I:&ozy }=  
private void insertSort(int[] data, int start, int inc) { }hxYsI"d  
int temp; 5Bk  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ;wZ.p"T9^  
} AR^Di`n!  
} v2R:=d ')>  
} 6 [E"  
@RW%EXKt  
} :f:C*mYvu  
HS9U.G>  
快速排序: \PJ89u0  
{lJpcS  
package org.rut.util.algorithm.support; 4+"SG@i`W  
^lj>v}4fkW  
import org.rut.util.algorithm.SortUtil; ~ .-'pdz%  
0jH2. d=  
/** + >j_[O5Y  
* @author treeroot g=Jfp$*[  
* @since 2006-2-2 &baY[[N  
* @version 1.0 6W Zp&pO  
*/ <D}k@M Z  
public class QuickSort implements SortUtil.Sort{ l"CONzm!  
|Sm/Uq(c  
/* (non-Javadoc) 8qveKS]vZ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) zT8K})#  
*/ T8LwDqio  
public void sort(int[] data) { F_`Gs8- VH  
quickSort(data,0,data.length-1); iDr0_y*t  
} we3t,?`rk7  
private void quickSort(int[] data,int i,int j){  3@*8\  
int pivotIndex=(i+j)/2; u#<]>EtbB  
file://swap 1)y}.y5S  
SortUtil.swap(data,pivotIndex,j); 4<|]k?@  
2z:9^a/]Na  
int k=partition(data,i-1,j,data[j]); qS>el3G  
SortUtil.swap(data,k,j); A\>qoR!Y  
if((k-i)>1) quickSort(data,i,k-1); &/p 9+gd  
if((j-k)>1) quickSort(data,k+1,j); PR0]:t)E  
/<~IKVz\&  
} t*#T~3p  
/** J5wq}<8  
* @param data Zh*I0m   
* @param i w'C(? ?mH  
* @param j FU zY&@Y  
* @return = 4L.  
*/ LJ?7W,?  
private int partition(int[] data, int l, int r,int pivot) { I6+5mv\  
do{ "\ md  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); , {^g}d8  
SortUtil.swap(data,l,r); %|Vq"MW,I  
} 1ARIZ;H  
while(l SortUtil.swap(data,l,r); $l=m?r=  
return l; CAfG3;  
} :v`o="  
gueCP+a_  
} 8}2 `^<U  
E@p9vf->  
改进后的快速排序: y$rp1||lH  
ZC"p^~U_e[  
package org.rut.util.algorithm.support; c)?y3LX  
7o3f5"z  
import org.rut.util.algorithm.SortUtil; *"wsMO  
NeH^g0Q2,g  
/** "Z <1Msz  
* @author treeroot 8I%1 `V  
* @since 2006-2-2 ynhH5P|6,  
* @version 1.0 5n<Efi]j  
*/ i{.!1i:  
public class ImprovedQuickSort implements SortUtil.Sort { [||$1u\%  
raCxHY  
private static int MAX_STACK_SIZE=4096; 6;Bqu5_Cj  
private static int THRESHOLD=10; %5b2vrg~*  
/* (non-Javadoc) 5K0Isuu>>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 74_ji!  
*/ e([}dz  
public void sort(int[] data) { Ad[-YT  
int[] stack=new int[MAX_STACK_SIZE]; xpae0vw  
"bqB@)  
int top=-1; bTJ7RqL  
int pivot; ;TYkJH"  
int pivotIndex,l,r; ~~&M&Fe  
k 2~j:&p  
stack[++top]=0; -O\`G<s%  
stack[++top]=data.length-1; c(:GsoO  
d4/ZOj+%  
while(top>0){ #-{4F?DA]y  
int j=stack[top--]; b$hQB090  
int i=stack[top--]; 'Q# KjY  
].eGsh2  
pivotIndex=(i+j)/2; V<b"jCXI  
pivot=data[pivotIndex]; >5\rU[H>  
j:g/[_0s  
SortUtil.swap(data,pivotIndex,j); "Mth<%i  
'j|;M  
file://partition qSON3Iid  
l=i-1; ^vUdf.n9  
r=j; 9!tRM-  
do{ Hly$ Wm  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ~%cbp&s*/q  
SortUtil.swap(data,l,r); E$gcd#rT  
} 9i n&\  
while(l SortUtil.swap(data,l,r); b1-JnEc  
SortUtil.swap(data,l,j); =KkHck33  
a4?:suX$  
if((l-i)>THRESHOLD){ P:=3;d{v  
stack[++top]=i; J^U#dYd  
stack[++top]=l-1; *g7dB2{  
} @#nB]qV:e  
if((j-l)>THRESHOLD){ h/d&P  
stack[++top]=l+1; uCx\Bt"VI  
stack[++top]=j; o}<}zTU  
} S>nM&758  
-Y D6  
} VK8 5A  
file://new InsertSort().sort(data);  e tY9Pq  
insertSort(data); p tMysYT'  
} vtmvvv  
/** N]gdS]pP2{  
* @param data {A{=RPL  
*/ :*1bhk8~  
private void insertSort(int[] data) { fn)c&|aCt  
int temp; ^8DC W`V  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); qjuX1 6o  
} H'GyWG|Wx  
} M%Ov6u<I8  
} tT'+3  
aB.`'d)V  
} $w{#o E  
fDf:Jec`[  
归并排序: W,:*`  
q*8^938  
package org.rut.util.algorithm.support; UW!!!  
lf&g *%?1  
import org.rut.util.algorithm.SortUtil; ]h,XRDK  
S Bs_rhe  
/** C,.$g>)MZK  
* @author treeroot 42mdak}\  
* @since 2006-2-2 C*=#=.~~{  
* @version 1.0 p "u5wJ_  
*/ ?Yxk1Y4ig)  
public class MergeSort implements SortUtil.Sort{ jT%k{"+>+?  
i!9yN: m0  
/* (non-Javadoc) bmFnsqo  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >J+hu;I5  
*/ )=#QTiJ  
public void sort(int[] data) { ~]3y66 7  
int[] temp=new int[data.length]; zGF_ c9X  
mergeSort(data,temp,0,data.length-1); >zVj+  
} QOMh"wC3  
GHfsq|*j,Z  
private void mergeSort(int[] data,int[] temp,int l,int r){ UT%^!@u  
int mid=(l+r)/2; 7*`cWT_X  
if(l==r) return ; t0(1qFi  
mergeSort(data,temp,l,mid); 5 ^+> *z  
mergeSort(data,temp,mid+1,r); /2 ')u|  
for(int i=l;i<=r;i++){ gq!| 0  
temp=data; 1d,;e:=j  
} hT]\*},  
int i1=l; > -OQk"o  
int i2=mid+1; #}3$n/  
for(int cur=l;cur<=r;cur++){ WbB0{s  
if(i1==mid+1) se2ay_<F+  
data[cur]=temp[i2++]; X2v|O3>/N  
else if(i2>r) @#xh)"}  
data[cur]=temp[i1++]; blEs!/A`  
else if(temp[i1] data[cur]=temp[i1++]; {dTtYL$'"  
else @|sDb?J  
data[cur]=temp[i2++]; A70x+mjy^T  
} =y.?=`"  
} |p}qK Fdi  
/z9oPIJ=*  
} Q E1DTU  
# **vIwX-Q  
改进后的归并排序: 2Ck'A0d  
bd_&=VLTC  
package org.rut.util.algorithm.support; d#'aTmu!  
-AWL :<  
import org.rut.util.algorithm.SortUtil; i{vM NI{  
eTw sh]  
/** v47Y7s:uQ  
* @author treeroot B_$hi=?TTd  
* @since 2006-2-2 ~RgO9p(dY  
* @version 1.0 UsP1bh4  
*/ \4zb9CxOZ  
public class ImprovedMergeSort implements SortUtil.Sort { O0[.*xG  
5srj|'ja  
private static final int THRESHOLD = 10; Hx5t![g2K!  
Ev+m+  
/* )%FRBO]  
* (non-Javadoc) b\& |030+  
* ?VaWOwWI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lky{<jZ%  
*/ K =nW|^  
public void sort(int[] data) { m WN9/+!  
int[] temp=new int[data.length]; 4EQ-48h17  
mergeSort(data,temp,0,data.length-1); .sCi9d WR  
} V/"P};n  
x=s=~cu4,  
private void mergeSort(int[] data, int[] temp, int l, int r) { 5F&xU$$a-  
int i, j, k; b+7!$  
int mid = (l + r) / 2; Y=94<e[f"  
if (l == r) no ).70K  
return; M@%$9N)gd  
if ((mid - l) >= THRESHOLD) `tZm  
mergeSort(data, temp, l, mid); V}_M\Y^^;  
else \-i5b  
insertSort(data, l, mid - l + 1); vy&q7EX<i  
if ((r - mid) > THRESHOLD) ;c};N(2  
mergeSort(data, temp, mid + 1, r); zI1-l9 o  
else Qv4g#jX{  
insertSort(data, mid + 1, r - mid); D_VAtz  
Twl>Pn>  
for (i = l; i <= mid; i++) { !A@Ft}FB  
temp = data; jr,j1K@_t  
} OcWy#,uC  
for (j = 1; j <= r - mid; j++) { t{A/Lq9AM  
temp[r - j + 1] = data[j + mid]; gK7bP'S8H  
} St 4YNS.|  
int a = temp[l]; O{@m,uY  
int b = temp[r]; >AFX}N#  
for (i = l, j = r, k = l; k <= r; k++) { :56f  
if (a < b) { Ut|G.%1Vd%  
data[k] = temp[i++]; SY&)?~C  
a = temp; ,-({m'  
} else { :70n%3a  
data[k] = temp[j--]; bUJ5j kZ)  
b = temp[j]; 5^:N]Mp"  
} fZ8at  
} z;fi  
} %uA\Le  
[(Jj@HlP6T  
/** GBMCw  
* @param data SI-G7e)3;>  
* @param l {6E&\  
* @param i r92C^h0  
*/ @-9u;aL  
private void insertSort(int[] data, int start, int len) { HH`G/(a  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); (rDB|kc^7  
} T;{M9W+  
} c^Y&4=>T  
} wlvhDJ  
} e[`u:  
Qqju6}+  
堆排序: P01o:/}  
{-FS+D`  
package org.rut.util.algorithm.support; ^dc~hD  
YTWlR]Tr6?  
import org.rut.util.algorithm.SortUtil; ~x}/>-d  
>'\cNM~nf  
/** mI;#Zq_j  
* @author treeroot X0IXj%\N  
* @since 2006-2-2 ?<7o\Xk#{  
* @version 1.0 KB3zQJY  
*/ 8Df(|>mK  
public class HeapSort implements SortUtil.Sort{ TttD}`\.  
+aa( YGL  
/* (non-Javadoc) Yr7%C  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) iPnu *29  
*/ E Ux kYl  
public void sort(int[] data) { Av3qoH)[<  
MaxHeap h=new MaxHeap(); $%*E)~  
h.init(data); e~Hx+Qp.G  
for(int i=0;i h.remove(); '1o1=iJN@$  
System.arraycopy(h.queue,1,data,0,data.length); ,sU#{.(  
} ">?ocJ\9  
c(:qid  
private static class MaxHeap{ +1`Zu$|  
qJ\tc\  
void init(int[] data){ g(9\r  
this.queue=new int[data.length+1]; kB`t_`7f  
for(int i=0;i queue[++size]=data; P[|FK(l  
fixUp(size); ^g[,}t:/d  
} u2p5* gzZ  
} ~[E@P1  
aahAUhF  
private int size=0; auzrM4<tz  
}PdHR00^  
private int[] queue; +W=  
q '6gj  
public int get() { $M `%A  
return queue[1]; iGCA>5UE  
} a-P 'h1hbH  
"Zu hN(-`  
public void remove() { {|{}]B  
SortUtil.swap(queue,1,size--); y(I_ 6+B^  
fixDown(1); ]{` 8C  
} M!KHBr  
file://fixdown 8UA bTqB-  
private void fixDown(int k) { ulcm  
int j; X<6Ro es2  
while ((j = k << 1) <= size) { co <ATx  
if (j < size %26amp;%26amp; queue[j] j++; <ZF,3~v?  
if (queue[k]>queue[j]) file://不用交换 F0 cde  
break; %TO=]>q  
SortUtil.swap(queue,j,k); %D::$,;<<  
k = j; ^iWcuh_n  
} }8+rrzMUB  
} kPh;SCr{  
private void fixUp(int k) { R`7v3{  
while (k > 1) { hWzjn5w3  
int j = k >> 1; 2<Vw :+,  
if (queue[j]>queue[k]) ;=&D_jGf]  
break; TB=KT j  
SortUtil.swap(queue,j,k); T?p' R  
k = j; gnAM}  
} sn|q EH  
} qNhV zx  
!^o(?1  
} 6##}zfl  
D4CN%^?  
} >g):xi3qK  
+Lq;0tRC  
SortUtil: VxlK:*t`  
994   
package org.rut.util.algorithm; ."N`X\  
x2P}8Idg?A  
import org.rut.util.algorithm.support.BubbleSort; 3' HtT   
import org.rut.util.algorithm.support.HeapSort; /3MTutM|<X  
import org.rut.util.algorithm.support.ImprovedMergeSort; lnXb]tm;  
import org.rut.util.algorithm.support.ImprovedQuickSort; pt"yJtM'P  
import org.rut.util.algorithm.support.InsertSort; qb rf;`  
import org.rut.util.algorithm.support.MergeSort; fB \+.eN  
import org.rut.util.algorithm.support.QuickSort; q\PHA  
import org.rut.util.algorithm.support.SelectionSort; DXbzl +R  
import org.rut.util.algorithm.support.ShellSort; eSV_.uvsb  
[1I>Bc&o*  
/** (r&e|  
* @author treeroot  QuJ~h}k  
* @since 2006-2-2 {nyQ]Nu"  
* @version 1.0 KNR_upO8  
*/ .zm'E<  
public class SortUtil { RVlAWw(  
public final static int INSERT = 1; |FF"vRi8a7  
public final static int BUBBLE = 2; l7rGz2:?  
public final static int SELECTION = 3; ~2R3MF.C  
public final static int SHELL = 4; %]>LnbM>4  
public final static int QUICK = 5; r_sZw@lqJ  
public final static int IMPROVED_QUICK = 6; *O`76+iZ|_  
public final static int MERGE = 7; ?;\xeFy!  
public final static int IMPROVED_MERGE = 8; (-lu#hJ`&r  
public final static int HEAP = 9; N8$MAW  
/xK5%cE>B  
public static void sort(int[] data) { O@.afk"{  
sort(data, IMPROVED_QUICK); nm[ yp3B  
} ##%R|P3  
private static String[] name={ ,zCrix 3  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" u )'l|Y  
}; P #_8$#G3  
B3p[A k  
private static Sort[] impl=new Sort[]{ j Hd <*  
new InsertSort(), %-zAV*>  
new BubbleSort(), 8vN}v3HV&  
new SelectionSort(), fO!S^<9,-  
new ShellSort(), #3:;&@#  
new QuickSort(), ]Q}z-U  
new ImprovedQuickSort(), |( %3 '"Z  
new MergeSort(), wH:'5+u:6  
new ImprovedMergeSort(), 2>s@2=Aq  
new HeapSort() YNGG> ;L  
}; Ov vM)?^#  
>s@6rNgf  
public static String toString(int algorithm){ Cm4$&?  
return name[algorithm-1]; GJ>vL  
} 8}Pd- .se  
fk(l.A$  
public static void sort(int[] data, int algorithm) { OG# 7Va  
impl[algorithm-1].sort(data); [zO    
} HJY_l  
{J:ZM"GS  
public static interface Sort { uUAib<wdPL  
public void sort(int[] data); ~=t, g S  
} 7\'ow|)}v  
IN? A`A  
public static void swap(int[] data, int i, int j) { 4<`x*8` ,  
int temp = data; fo"dX4%}  
data = data[j]; u9AXiv+K  
data[j] = temp; 'E/vE0nN?  
} m"B)%?C#  
} 2<$C6J0HM  
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