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
  • 6383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。 nhy3E  
插入排序: "cti(0F-d  
n ,H;PB  
package org.rut.util.algorithm.support; yJgnw6>r2  
>u6kT\|^C  
import org.rut.util.algorithm.SortUtil; cOS|B1xG  
/** bbnAF*7s8  
* @author treeroot D'</eJ  
* @since 2006-2-2 )~WxNn3rx  
* @version 1.0 ]5} =r  
*/ 2Ejs{KUj  
public class InsertSort implements SortUtil.Sort{ 2sf/^XC1  
c !5OK4+Z  
/* (non-Javadoc) id*UTY Tg  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2o{Fp7l  
*/ lM?P8#3  
public void sort(int[] data) { E|ZY2&J`4  
int temp; kR'!;}s  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); /Bb\jvk-E  
} B_:K.]DK`  
} X, J.!:4`  
} )L^WD$"'Q  
m,8A2;&,8  
} TCB<fS~U-  
r$*k-c9Bf  
冒泡排序: fv)-o&Q#  
"IB)=Hc  
package org.rut.util.algorithm.support; D<nTo&m_  
G*Qk9bk9  
import org.rut.util.algorithm.SortUtil; ;)UZT^f`)K  
Ma_! 1Y  
/** t7n*kiN<q  
* @author treeroot N7Dm,Q]  
* @since 2006-2-2 IDcu#Nz`  
* @version 1.0 h/PWi<R i  
*/ P3(u+UI3  
public class BubbleSort implements SortUtil.Sort{ jtl7t59R  
]%G[<zD,1  
/* (non-Javadoc) tt#M4n@  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5>/,25 99  
*/ !+CRS9\D   
public void sort(int[] data) { &W}ooGg  
int temp; i1u & -#k  
for(int i=0;i for(int j=data.length-1;j>i;j--){ >b<br  
if(data[j] SortUtil.swap(data,j,j-1); Q +qN`  
} \@gs8K#  
} 6rdm=8WFA  
} !MQo= k  
} m<r.sq&;  
+5 @8't  
} 5jkW@  
dH?;!sJ  
选择排序: 8(&C0_yD  
dht1I`i"B  
package org.rut.util.algorithm.support; G8eAj%88  
8h-6;x^^  
import org.rut.util.algorithm.SortUtil; oZP:}= F  
4z?6[Cg<  
/** P2f~sx9  
* @author treeroot $wC]S4C  
* @since 2006-2-2 T3!l{vG \O  
* @version 1.0 Nqewtn9n  
*/ )|'? uN7  
public class SelectionSort implements SortUtil.Sort { En-eG37 l  
N!r@M."  
/* p}O@ %*p .  
* (non-Javadoc) W<v?D6dFq  
* Up)b;wR  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c :hOQZ  
*/ 's!EAqCN  
public void sort(int[] data) { # 1I<qK  
int temp; t9W_ [_a9  
for (int i = 0; i < data.length; i++) { }JAg<qy}  
int lowIndex = i; (m~MyT#S  
for (int j = data.length - 1; j > i; j--) { H&`p9d*(e  
if (data[j] < data[lowIndex]) { ;]+kC  
lowIndex = j; x1?p+  
} >"N\ZC^  
} Z'PL?;&+R  
SortUtil.swap(data,i,lowIndex); (Q\QZu@  
} nD!C9G#oS  
} v )4 kS  
hjaI&?w  
} $Y)|&,  
,5H$Tm,6\S  
Shell排序: &I<R|a  
1 NLawi6  
package org.rut.util.algorithm.support; [}}oHm3&  
ke'p8Gz  
import org.rut.util.algorithm.SortUtil; 9{?<.%  
!\RR UH*  
/** `Nc3I\tCM  
* @author treeroot 5"]PwC  
* @since 2006-2-2 a(BWV?A  
* @version 1.0 _Ev"/ %  
*/ >LwAG:Ud  
public class ShellSort implements SortUtil.Sort{ =KMd! $J\  
Vy&F{T;$  
/* (non-Javadoc) %t:1)]2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jQ1~B1(  
*/ !A&Vg #  
public void sort(int[] data) { wF$8#=  
for(int i=data.length/2;i>2;i/=2){ _f{'&YhUU  
for(int j=0;j insertSort(data,j,i); =DG aK0n  
} jFbz:aUF  
} /!d,f4n  
insertSort(data,0,1); BY32)8SH  
} ,r:. 3.  
-Y2h vC  
/** wa@X^]D8  
* @param data sW@4r/F>:D  
* @param j %fK"g2:  
* @param i I]jVnQ>&  
*/ }eULcgRG  
private void insertSort(int[] data, int start, int inc) { qf(!3  
int temp; P=(\3ok  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); a~:'OW:Q  
} [{f{E  
} /'!F \ kz  
} CYes'lr  
D.)R8X  
} BVC\~j j  
{*yhiE,  
快速排序: e9o(hL  
~,m6g&>R  
package org.rut.util.algorithm.support; mVP@c&1w?  
;UArDwH  
import org.rut.util.algorithm.SortUtil; y~]>J^  
C4#'`8E  
/** h8 $lDFo  
* @author treeroot &AoXv`l4  
* @since 2006-2-2 &NB[:S =  
* @version 1.0 W5HC7o\4  
*/ y*2:(nI  
public class QuickSort implements SortUtil.Sort{ pn {Nk1Pl  
!C&}e8M|eX  
/* (non-Javadoc) }+,1G!? z  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {Lrez E4  
*/ pR; AqDQ  
public void sort(int[] data) { Z  r  
quickSort(data,0,data.length-1); gdNEMT  
} [;83 IoU}  
private void quickSort(int[] data,int i,int j){ M,3sK!`>  
int pivotIndex=(i+j)/2; |r%6;8A]i  
file://swap 9p9:nx\  
SortUtil.swap(data,pivotIndex,j); [8l8 m6  
;[uJ~7e3  
int k=partition(data,i-1,j,data[j]); 4$@5PS#,  
SortUtil.swap(data,k,j); I[c/) N  
if((k-i)>1) quickSort(data,i,k-1); Go= MG:`  
if((j-k)>1) quickSort(data,k+1,j); ysu"+J  
'>@ evrG  
} wS hsu_(i  
/** :-69,e  
* @param data 5)AMl)  
* @param i Zb^0EbV  
* @param j Pz:,q~  
* @return 18zv]v %  
*/ ovvR{MTc  
private int partition(int[] data, int l, int r,int pivot) { OtBVfA:[  
do{ d3St Z~&r!  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); -V%"i,t  
SortUtil.swap(data,l,r); e)zE*9  
} |p-, B>p!  
while(l SortUtil.swap(data,l,r); ~*79rDs{  
return l; b>er'U  
} [sy~i{Bm  
h-].?X,]Q  
} 8Mf6*G#Y  
TMpV .iH  
改进后的快速排序: 64fa0j~<*M  
04D>h0yFf  
package org.rut.util.algorithm.support; LPc)-t|p"  
bC{}&a  
import org.rut.util.algorithm.SortUtil; FAX|.!US*p  
A,Wwt [Qw  
/** 3"NO"+Q  
* @author treeroot ,.A@U*j  
* @since 2006-2-2 3CL/9C>  
* @version 1.0 GL-v</2'U  
*/ Ye% e!  
public class ImprovedQuickSort implements SortUtil.Sort { ePv3M&\J  
^~9fQJNs  
private static int MAX_STACK_SIZE=4096; %UT5KYd!=N  
private static int THRESHOLD=10; r'/&{?Je/  
/* (non-Javadoc) BZ* ',\o  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Tsch:r S  
*/ I$7|?8  
public void sort(int[] data) { >'ev_eAk  
int[] stack=new int[MAX_STACK_SIZE]; <`rmQ`(}s  
}Z#KPI8\Q  
int top=-1; u atY:GSR  
int pivot; >Q3_-yY+  
int pivotIndex,l,r; Zgy~Y0Di  
w"ZngrwBl  
stack[++top]=0; d!0iv'^t  
stack[++top]=data.length-1; '5V} Z3zJ/  
P1C{G'cR  
while(top>0){ -LzkM"  
int j=stack[top--]; 0Xo>f"2<f  
int i=stack[top--]; JYbsta  
|?v(?  
pivotIndex=(i+j)/2; E+z),"QA  
pivot=data[pivotIndex]; ~&HP }Q$#f  
`(tVwX4  
SortUtil.swap(data,pivotIndex,j); X})5XYvA*  
idsBw!DB  
file://partition *$e1Bv6 $  
l=i-1; tV?-   
r=j; Ey|{yUmU+  
do{ `A\,$(q+  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ]#k=VKdV  
SortUtil.swap(data,l,r); 1.24ZX  
} oZ,J{I!L  
while(l SortUtil.swap(data,l,r); M>qqe!c*  
SortUtil.swap(data,l,j); 7N:3  
Ec/&?|$  
if((l-i)>THRESHOLD){ Cv[_N%3[  
stack[++top]=i; f \ E9u}  
stack[++top]=l-1; gn//]|#H+  
} i+qt L3  
if((j-l)>THRESHOLD){ 0<i8 ;2KD  
stack[++top]=l+1; cMs8D  
stack[++top]=j; =kzuU1s  
} IA%|OVAfF  
$^:s)Yv  
} +Y?) ?  
file://new InsertSort().sort(data); &x?m5%^l  
insertSort(data); %$D n);6=  
} S>Z07d6&  
/** ~nJ"#Q_T  
* @param data ^(kmFUV,Z  
*/ XX7zm_>+  
private void insertSort(int[] data) { t:x"]K  
int temp; Sw.k,p*r  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Rp+Lu  
} 8]K+,0m6  
} #V{!|Y'  
} Etn uEU  
/IQ$[WR cx  
} lY&Sx{-  
tWyl&,3?1  
归并排序: s6F0&L;N&  
IG.!M@_  
package org.rut.util.algorithm.support; U?%T~!  
D&o ~4Qvc]  
import org.rut.util.algorithm.SortUtil; VS\| f'E  
2FN E ;y(  
/** )[ QT ?;  
* @author treeroot I`77[  
* @since 2006-2-2 %I=/ y  
* @version 1.0 7{tU'`P>  
*/ y@@h)P#  
public class MergeSort implements SortUtil.Sort{ +[ng99p  
2:RFPK  
/* (non-Javadoc) KVevvy)W  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) rf^ u&f  
*/ ;qO3m -(d  
public void sort(int[] data) { 5yyc 0UG  
int[] temp=new int[data.length]; % *ng *  
mergeSort(data,temp,0,data.length-1); Q@"}v_r4  
} -_xTs(;|8  
b")O#v.  
private void mergeSort(int[] data,int[] temp,int l,int r){  wh#IQ.E-  
int mid=(l+r)/2; 27i-B\r  
if(l==r) return ; GkxQEL  
mergeSort(data,temp,l,mid); DS+BX`i%#p  
mergeSort(data,temp,mid+1,r); Uw]o9 e0S  
for(int i=l;i<=r;i++){ ykRd+H-t  
temp=data; K8/jfm  
} ~|[i64V<^  
int i1=l; qpQiMiB#g'  
int i2=mid+1; r0wAh/J|  
for(int cur=l;cur<=r;cur++){ M6ZXq6J  
if(i1==mid+1) ._]*Y`5)d  
data[cur]=temp[i2++]; Lf:#koaC  
else if(i2>r)  od$$g(  
data[cur]=temp[i1++]; <`WDNi$Y  
else if(temp[i1] data[cur]=temp[i1++]; _R^ZXtypd  
else g:.LCF  
data[cur]=temp[i2++]; G5|'uKz2"  
} \PD%=~  
}  #]QS   
s1R#X~d  
} Ga+Cb2$  
bxPJ5oT  
改进后的归并排序: l*(L"]  
E^Ch;)j|  
package org.rut.util.algorithm.support; G*=&yx."E  
AHMvh 7O?  
import org.rut.util.algorithm.SortUtil; ~;-2eKw  
7Le- f  
/** Lr20xm  
* @author treeroot %__ @G_M  
* @since 2006-2-2 elR1NhB|p  
* @version 1.0 mM L B?I  
*/ j+>[~c;0)  
public class ImprovedMergeSort implements SortUtil.Sort { qY!LzKM0  
:#\jx  
private static final int THRESHOLD = 10; Lctp=X4  
6kMEm)YjT  
/* oKr= ]p  
* (non-Javadoc) _dECAk &b  
* C8i4z  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) aK(e%Ed t"  
*/ ADM!4L(s4}  
public void sort(int[] data) { ~}/_QlX` K  
int[] temp=new int[data.length]; B qINU  
mergeSort(data,temp,0,data.length-1); 1NG[   
} <IBUl}|\  
1FG"Ak}D  
private void mergeSort(int[] data, int[] temp, int l, int r) { zsj]WP6 j  
int i, j, k; -;;m/QM  
int mid = (l + r) / 2; Q<DXDvL  
if (l == r) Q/J<$W*,  
return; xT( pB-R  
if ((mid - l) >= THRESHOLD) Z2-tDp(I  
mergeSort(data, temp, l, mid); ~OLyG$JJ  
else *v: .]_;  
insertSort(data, l, mid - l + 1); 0'Qvis[kt  
if ((r - mid) > THRESHOLD) _mQj=  
mergeSort(data, temp, mid + 1, r); D51s)?  
else 4/_! F'j  
insertSort(data, mid + 1, r - mid); FW)~e*@8=  
a<]vHC7  
for (i = l; i <= mid; i++) { (WP^}V5  
temp = data; Jh36NE8r  
} **oDQwW]*  
for (j = 1; j <= r - mid; j++) { w_;$ahsu~  
temp[r - j + 1] = data[j + mid]; ~ 588md :  
} c>T)Rc  
int a = temp[l]; Y4lNxvY  
int b = temp[r]; &T ^bv*P  
for (i = l, j = r, k = l; k <= r; k++) { A;6ew4  
if (a < b) { (dx~lMI  
data[k] = temp[i++]; >5TXLOYZ  
a = temp; ^ 4p$@5zH  
} else { ~]9EhC'l  
data[k] = temp[j--]; 0QW;=@)d  
b = temp[j]; L s3r( Tf  
} rJB/)4 mE  
} k'sPA_|  
} -a"b:Q  
O%aHQL%Sz  
/** gR_Exs'K  
* @param data b`Jsu!?{  
* @param l aWP9i &  
* @param i p;D {?H/  
*/ aZ|S$-}  
private void insertSort(int[] data, int start, int len) { RMid}BRE  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); SLH;iqPT  
} Gv[(0  
} u6:$AA  
} {Q`Q2'@  
} G,1g~h%I$  
!kH 1|  
堆排序: 92N`Q}  
LY#V)f  
package org.rut.util.algorithm.support; v0bP|h[t  
M6V^ur 1  
import org.rut.util.algorithm.SortUtil; 64<*\z_  
znIS2{p/`  
/** [o7Qr?RN  
* @author treeroot |0X~D}r|J  
* @since 2006-2-2 WD*z..`  
* @version 1.0 M!%|IKw  
*/ vTWm_ed+^  
public class HeapSort implements SortUtil.Sort{ |1e//*  
^7t1'A8e<  
/* (non-Javadoc) EN8xn9M?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?V(+Cc  
*/ >McEuoZx9  
public void sort(int[] data) { vWL| vR  
MaxHeap h=new MaxHeap(); ~8-xj6^  
h.init(data); .&8a ;Q?c  
for(int i=0;i h.remove(); `joyHKZI.  
System.arraycopy(h.queue,1,data,0,data.length); {K:] dO  
} QHnC(b  
'tjqfR  
private static class MaxHeap{ a(G}<  
"3_GFq  
void init(int[] data){ kE[R9RS!  
this.queue=new int[data.length+1]; Pa$"c?QUy  
for(int i=0;i queue[++size]=data; #3A|Z=,5  
fixUp(size); "g!ek3w(  
} .SNg2.  
} x,fL656t  
 [ A 7{}  
private int size=0; M)H*$!x}>  
MN:LL <  
private int[] queue; _c}# f\ +_  
y'non0P.  
public int get() { %'S[f  
return queue[1]; -D%mVe)&+  
} e_cK#9+  
rFp>A`TJ  
public void remove() { BPVOBL@   
SortUtil.swap(queue,1,size--); . lNf.x#u  
fixDown(1); k~fH:X~x  
} e{ *yV#Wl  
file://fixdown oa`7ClzD  
private void fixDown(int k) { ViG>gMGv  
int j; Jje!*?&8X  
while ((j = k << 1) <= size) { $ ?|;w,%I  
if (j < size %26amp;%26amp; queue[j] j++; z*9 ke  
if (queue[k]>queue[j]) file://不用交换 2^f7GP  
break; H5o=nWQ6e  
SortUtil.swap(queue,j,k); !fjB oK+  
k = j; o^r\7g6\  
} 9`M7 -{  
} J"TF@7{p  
private void fixUp(int k) { tJ&tNSjTi  
while (k > 1) { w6pXF5ur>  
int j = k >> 1; >2X-98,  
if (queue[j]>queue[k]) <;Tr   
break; ;mPX8bT  
SortUtil.swap(queue,j,k); ,J:Ro N_:  
k = j; EBr?>hl  
} Fh|{ib  
} {-%8RSK=<  
h Vui.]  
} &y(%d 7@/  
'K#ndCGJ$  
} 2waPNb|  
ydAiH*>  
SortUtil: 7+qKA1t^  
V)vik  
package org.rut.util.algorithm; ?-)v{4{s  
&So1;RR,_M  
import org.rut.util.algorithm.support.BubbleSort; dP`B9>r  
import org.rut.util.algorithm.support.HeapSort; dlIYzO<  
import org.rut.util.algorithm.support.ImprovedMergeSort; <XN=v!2;  
import org.rut.util.algorithm.support.ImprovedQuickSort; VKf&}u/  
import org.rut.util.algorithm.support.InsertSort; Q|e-)FS)  
import org.rut.util.algorithm.support.MergeSort; a,r B7aD  
import org.rut.util.algorithm.support.QuickSort; 8_"NF%%(n  
import org.rut.util.algorithm.support.SelectionSort; +_+j"BT  
import org.rut.util.algorithm.support.ShellSort; d`=LZio  
=|8hG*D8  
/** NRgVNE  
* @author treeroot "F6gV;{Bt  
* @since 2006-2-2 > >KCd  
* @version 1.0 S4'<kF0z  
*/ euVj,m  
public class SortUtil { y*6/VSRkt4  
public final static int INSERT = 1; ]}p<P):hO  
public final static int BUBBLE = 2; 't5`Ni  
public final static int SELECTION = 3; lW|v_oP9  
public final static int SHELL = 4; Z!7xRy  
public final static int QUICK = 5; JodD6 ;P  
public final static int IMPROVED_QUICK = 6; h72CGA|  
public final static int MERGE = 7; $*T?}r>  
public final static int IMPROVED_MERGE = 8; | L1+7  
public final static int HEAP = 9; $EX(-!c  
c&FOt  
public static void sort(int[] data) { ]V_A4Df  
sort(data, IMPROVED_QUICK); RZ;s_16GQ  
} c?u*,d) G  
private static String[] name={ S(?A3 H  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" B?- poB&  
}; u6 Lx3  
=:]v~Ehq  
private static Sort[] impl=new Sort[]{ %.?V\l  
new InsertSort(), ??U/Qi180  
new BubbleSort(), aWJj@',_  
new SelectionSort(), |_>^vW1f  
new ShellSort(), Y#tur`N  
new QuickSort(), Q2uV/M1?  
new ImprovedQuickSort(), B4wRwrVI>  
new MergeSort(), Y[dq"  
new ImprovedMergeSort(), $LFL4Q  
new HeapSort() R&J?X Q  
}; ovBmo2W/  
;R[3nb9%  
public static String toString(int algorithm){ O#^H.B  
return name[algorithm-1]; upL3M`  
} _#s,$K#  
mbGma  
public static void sort(int[] data, int algorithm) { qq]Iy=  
impl[algorithm-1].sort(data); j)6p>6  
} % hvK;B?Y|  
5<R m{  
public static interface Sort { W ';X4e  
public void sort(int[] data); 3m` >D e  
} )AQ^PBwp  
c$%*p (zY  
public static void swap(int[] data, int i, int j) { $[n:IDa*@1  
int temp = data; hW< v5!,  
data = data[j]; uMS+,dXy  
data[j] = temp; Cl]?qH*:  
} '.(Gg%*\.  
} v/.'st2%  
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:
10+5=?,请输入中文答案:十五