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
  • 6652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。 59Nd}wPO;  
插入排序: "k, K~@}  
JnHNkCaU  
package org.rut.util.algorithm.support; ]'UgZsJ  
~of,,&  
import org.rut.util.algorithm.SortUtil; m1V-%kUI  
/** $ 9=8@  
* @author treeroot SBL+e]P  
* @since 2006-2-2 ?Sw /(}|m  
* @version 1.0 !-,Ww[G>  
*/ GV>&g  
public class InsertSort implements SortUtil.Sort{ Wn~ZA#  
_Jy,yMQ^[_  
/* (non-Javadoc) #R<G,"N5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) b5S7{"<V  
*/ mLaCkn  
public void sort(int[] data) {  P63 (^R  
int temp; In+^V([u+_  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); R{`gR"*  
} ckWkZ 78\  
} 3HKxYvc C  
} *IqVY&  
s`1^*Dl%+  
} /=/ HB  
t)'dF*L  
冒泡排序: .pW o>`"  
 Fs)  
package org.rut.util.algorithm.support; qRl/Sl#F  
LuL$v+`  
import org.rut.util.algorithm.SortUtil; q)k{W>O  
Gk 6fO  
/** Y;g% e3nu  
* @author treeroot v#F-<?Vv  
* @since 2006-2-2 &=NJ  
* @version 1.0 [S)G$JW  
*/ @ t|3gF$X  
public class BubbleSort implements SortUtil.Sort{ 8t=3  
BUDGyl/=  
/* (non-Javadoc) 70=(. [^+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M}KZG'7  
*/ ?S9Nm~vlt  
public void sort(int[] data) { :*cHA  
int temp; ThiN9! Y  
for(int i=0;i for(int j=data.length-1;j>i;j--){ q<EEb  
if(data[j] SortUtil.swap(data,j,j-1); v8  
} \OA L Or  
} Ih3$  
} FR["e1<0  
} dE GX3 -  
Vmtzig3w[  
} 506V0]`/  
ZMJ3NN]F  
选择排序: ydup)[n  
J?,?fqb  
package org.rut.util.algorithm.support; 2+Zti8  
UO1$UF! QC  
import org.rut.util.algorithm.SortUtil; Z)5klg$c  
.jaZ|nN8`  
/** ki3 HcV  
* @author treeroot -O%[!&`  
* @since 2006-2-2 Z'e\_C  
* @version 1.0 cyBW0wV1  
*/ W }Zb~[,  
public class SelectionSort implements SortUtil.Sort { gw J}]Tf  
(V)9s\Le_  
/* 7IQqN&J  
* (non-Javadoc) 2m_H*1 HJ  
* 0mVuD\#=!  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /`}6rXnw9  
*/ mYzcVhV  
public void sort(int[] data) { B*2{M  
int temp; zsQF,7/}B  
for (int i = 0; i < data.length; i++) { p7$3`t 6u  
int lowIndex = i; )tvc/)&A}  
for (int j = data.length - 1; j > i; j--) { P8IRH#ED  
if (data[j] < data[lowIndex]) { wx./"m.M  
lowIndex = j; #w;;D7{@m  
} ?Nu#]u-  
} NZfd_? 3  
SortUtil.swap(data,i,lowIndex); 'QR4~`6I  
} s&0*'^'O[S  
} j3LNnZY  
u]0!|Jd0  
} zu<>"5}]  
,O2q+'&  
Shell排序: @ct#s:t  
#r(a~  
package org.rut.util.algorithm.support; c8q G\\t[  
hwp/jO:7\  
import org.rut.util.algorithm.SortUtil; "h$D7 mL  
xY+A]Up|w  
/** a}w&dE$!-  
* @author treeroot pJn>oGeJ&  
* @since 2006-2-2 Z@u ;Z[@  
* @version 1.0 ]o `4Z"  
*/ kR_E6Fl  
public class ShellSort implements SortUtil.Sort{ m EFWo  
.T{U^0 )  
/* (non-Javadoc) >pnz_MQ   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =/m}rcDN  
*/  XtR`?  
public void sort(int[] data) { eWw y28t  
for(int i=data.length/2;i>2;i/=2){ }FZp 840  
for(int j=0;j insertSort(data,j,i); g&P9UW>qS  
} TtZrttCE6  
} `!_?uT  
insertSort(data,0,1); ^>eFm8`N  
} Nl=+.d6 Qo  
'h k @>"  
/** .C6gl]6y@  
* @param data 9 #:ue@)  
* @param j v3Eo@,-  
* @param i ?nY/, q&  
*/ . rRc  
private void insertSort(int[] data, int start, int inc) { [-QK$~[ g  
int temp; h%u? lW  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); noFh p  
} WVj&0  
} )|Jr|8  
} ,I=O"z>9  
6B /Jp  
} Z"+(LO!  
JLt{f=`%F  
快速排序: L-SdQTx_  
3EO#EYAHiM  
package org.rut.util.algorithm.support;  POkXd^pI  
:K?iNZqWN6  
import org.rut.util.algorithm.SortUtil; ;>sq_4_  
[]!tT-Gzy  
/** cz$c)It  
* @author treeroot WtMcI>4w  
* @since 2006-2-2 cS+?s=d  
* @version 1.0 p {w}  
*/ N{|[R   
public class QuickSort implements SortUtil.Sort{ &MBOAHhze  
I)qKS@  
/* (non-Javadoc) j^:b-:F  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A-}PpH~.Z  
*/ bl6':m+  
public void sort(int[] data) { CR P7U  
quickSort(data,0,data.length-1); ">03~:oA  
} iFY]0@yt  
private void quickSort(int[] data,int i,int j){ 54bF) <+  
int pivotIndex=(i+j)/2; Q^\{Zg)p  
file://swap `;R|V  
SortUtil.swap(data,pivotIndex,j); ;9 lqSv/6  
&0?DL  
int k=partition(data,i-1,j,data[j]); @:I \\S@bN  
SortUtil.swap(data,k,j); 4+ykE:  
if((k-i)>1) quickSort(data,i,k-1); [<,0A]m   
if((j-k)>1) quickSort(data,k+1,j); Uzy ;#q  
*vEU}SxRuv  
} lrM.RM96  
/** \z<ws&z3`$  
* @param data &?&'"c{;m  
* @param i MA l{66  
* @param j AN50P!FZW  
* @return  zgZi  
*/ iLc)"L-i  
private int partition(int[] data, int l, int r,int pivot) { YN$ndqOP  
do{ Ov F8&*A  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); EG8%~k+R  
SortUtil.swap(data,l,r); Fa Qu$q  
} HE8'N=0  
while(l SortUtil.swap(data,l,r); *)2x&~T*|  
return l; qQ3 ]E][/  
} g9RzzE!  
y=y/d>=w  
} ,K"r:)\  
{b\Y?t^>f  
改进后的快速排序: =P@M&Yy'  
";%e~ =  
package org.rut.util.algorithm.support; eG a#$x?.  
hlY S=cgY=  
import org.rut.util.algorithm.SortUtil; Ih9ORp7  
~7FEY0/  
/** ^' edE5  
* @author treeroot /TR"\xQF  
* @since 2006-2-2 XY&]T'A  
* @version 1.0 g^Ugl=f,  
*/ ^^20vwq  
public class ImprovedQuickSort implements SortUtil.Sort { n#/U@qVgc  
/1s9;'I  
private static int MAX_STACK_SIZE=4096; 3Y.d&Nz  
private static int THRESHOLD=10; "H/2r]?GT  
/* (non-Javadoc) D~[ N_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) w yuJSB  
*/ <ls i.x\y<  
public void sort(int[] data) { rF <iWM=  
int[] stack=new int[MAX_STACK_SIZE]; 6z%&A]6k:  
4DG 9`5.  
int top=-1; A,-[/Z K/  
int pivot; 98"z0nI%  
int pivotIndex,l,r; sYW1T @  
3"2<T^H]  
stack[++top]=0; n]kQtjJ  
stack[++top]=data.length-1; fS8XuT  
?(|TP^  
while(top>0){ FcJ.)U  
int j=stack[top--]; ,Yiq$Z{qQ  
int i=stack[top--]; U>3%!83kF  
9g<_JcN  
pivotIndex=(i+j)/2; ,_e/a   
pivot=data[pivotIndex]; J7&.>y1%  
=X%R*~!#Of  
SortUtil.swap(data,pivotIndex,j); !/=9VD{U!  
[5}cU{M  
file://partition wd2P/y42;;  
l=i-1; W? 6  
r=j; "OlI-^y  
do{ ys~p(  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); NUxAv= xl  
SortUtil.swap(data,l,r); tOlzOBzR  
} 9phD5b~j  
while(l SortUtil.swap(data,l,r); <7sF<KD  
SortUtil.swap(data,l,j); |{}d5Z"5;}  
?$`1%Y9  
if((l-i)>THRESHOLD){ gn4g 43  
stack[++top]=i; 7oqn;6<[>,  
stack[++top]=l-1; c=jTs+h'  
} ,i$(yx?  
if((j-l)>THRESHOLD){ )KTWLr;  
stack[++top]=l+1; i85+p2i7  
stack[++top]=j; Sf.8Ibw  
} T{v<  
4u{E D(  
} eF gb6dSh  
file://new InsertSort().sort(data); 0YsN82IDD  
insertSort(data); Kr+Bt y  
} A{n*NxKCX!  
/** x"h)"Y[c5  
* @param data :a^,Ei-&  
*/ gw}7%U`T9  
private void insertSort(int[] data) { zN 729wK  
int temp; {) '" k6w  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); jT wM<?  
} L;(3u'  
} 2kmna/Qa6  
} sL[(cX?;2  
=O}%bZ)Q  
} 8zB+%mcF  
5e~{7{  
归并排序: #/ gme  
S|u1QGB  
package org.rut.util.algorithm.support; KzFs#rhpn  
V }r_   
import org.rut.util.algorithm.SortUtil; xVwi }jtG|  
cvLcre% >A  
/** &&QDEDszp  
* @author treeroot hnfrnYH  
* @since 2006-2-2 ?6l,   
* @version 1.0 3vvFF]D5k  
*/ $4ZDT]n  
public class MergeSort implements SortUtil.Sort{ #\!hBL @b  
_QtQPK\+  
/* (non-Javadoc) s'fcAh,c6  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,a?\i JNb  
*/ Fy+7{=?^F  
public void sort(int[] data) { 3!L<=X  
int[] temp=new int[data.length]; E)Zd{9A5)  
mergeSort(data,temp,0,data.length-1); Aaw:B?4)  
} ]P ?#lO6  
{u[K ^G  
private void mergeSort(int[] data,int[] temp,int l,int r){ bU g2Bm!y  
int mid=(l+r)/2; +Muia5G  
if(l==r) return ; %;\2QI`R  
mergeSort(data,temp,l,mid); dQ2i{A"BKz  
mergeSort(data,temp,mid+1,r); 1wH/#K  
for(int i=l;i<=r;i++){ HU.6L 'H*  
temp=data; B #V 4  
} iRr& 'k  
int i1=l; M6>\R$  
int i2=mid+1; /-<m(72wF  
for(int cur=l;cur<=r;cur++){ n*8RYm)?  
if(i1==mid+1) Dm`U|<o  
data[cur]=temp[i2++]; 0_xcrM  
else if(i2>r) bU +eJU_%  
data[cur]=temp[i1++]; J;]@?(  
else if(temp[i1] data[cur]=temp[i1++]; NB6h/0*v  
else #L*@~M^]  
data[cur]=temp[i2++]; H fmMf^c  
} BrH`:Dw  
} }Us$y0W\  
@snLE?g j  
} x`|tT%q@l  
]e3}9.  
改进后的归并排序: uC8T!z  
0Ukl#6  
package org.rut.util.algorithm.support; (j8,n<o  
Q8/0Cb/  
import org.rut.util.algorithm.SortUtil; D@vvy6>~s  
R"kE5 :  
/** Chi<)P$^  
* @author treeroot 1Qe!  
* @since 2006-2-2 u2x=YUWb]  
* @version 1.0 !{ )AV/\D  
*/ n[w,x;  
public class ImprovedMergeSort implements SortUtil.Sort { ZCF-*nm  
W2LblZE!  
private static final int THRESHOLD = 10; kx#L<   
OU3+SYM  
/* {zN_l!  
* (non-Javadoc) U&\{/l  
* qA\kx#v]P  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) q>oH(A  
*/ />I8nS}T  
public void sort(int[] data) { tS\NO@E_Jh  
int[] temp=new int[data.length]; xr-`i  
mergeSort(data,temp,0,data.length-1); _CwQ}n*  
} %+W >+xRb  
V4i%|vV  
private void mergeSort(int[] data, int[] temp, int l, int r) { s=@Ce V@4W  
int i, j, k; Ewsg&CCN  
int mid = (l + r) / 2; w3cK: C0  
if (l == r) "}aM*(l+\  
return; \osQwGPV  
if ((mid - l) >= THRESHOLD) :Ty*i  
mergeSort(data, temp, l, mid); +&8Ud8Q  
else :\;uJ5  
insertSort(data, l, mid - l + 1); ->9xw  
if ((r - mid) > THRESHOLD) <%JO 3E  
mergeSort(data, temp, mid + 1, r); cQ ;Ry!$  
else 8t \>  
insertSort(data, mid + 1, r - mid); A|OC?NZY  
b1^Yxe#L  
for (i = l; i <= mid; i++) { ^ nZ2p$  
temp = data; ~TR|Pv  
} {hP&P  
for (j = 1; j <= r - mid; j++) { M{RZ-)IC  
temp[r - j + 1] = data[j + mid]; ? Z fhz   
} q;~>h  
int a = temp[l]; +( (31l  
int b = temp[r]; Yf`.Cq_:  
for (i = l, j = r, k = l; k <= r; k++) { s3!LR2qiF  
if (a < b) { ;<R_j%*  
data[k] = temp[i++]; ~"0X,APR5  
a = temp; _%%"Y}  
} else { (>`SS#(T!  
data[k] = temp[j--]; >^HTghgRD  
b = temp[j]; w:+#,,rwzV  
} Bzt`9lg  
} E }j8p_p  
} r:rJv  
fzG1<Gem  
/** ]H7Mx\  
* @param data /\I%)B47^9  
* @param l <5vB{)Tq  
* @param i ;!sGfrs 0$  
*/ r@UY$z  
private void insertSort(int[] data, int start, int len) {  M.^A`   
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); `bF;Ew;  
} 2![W N*N>O  
} &bK$!8Z  
} rM.<Gi05Qe  
} cHct|Z u  
)Dpt<}}\  
堆排序: ^{bEq\5&  
[ [CXMbD`*  
package org.rut.util.algorithm.support; o_m.MMEU  
g$LwXfg  
import org.rut.util.algorithm.SortUtil; &JM;jS z  
agD.J)v\  
/** #;]F:TlR  
* @author treeroot 0 d]G  
* @since 2006-2-2 a/#,Y<kJ  
* @version 1.0 UH|.@7w  
*/ BQg]$Tr?  
public class HeapSort implements SortUtil.Sort{ gP%!  
uNBhVsM6<  
/* (non-Javadoc) xhS/X3<th  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) gi >{`.]  
*/ aC 0Jfo  
public void sort(int[] data) { X6 cb#s0|  
MaxHeap h=new MaxHeap(); b<7 qmg3  
h.init(data); 3<V!y&a  
for(int i=0;i h.remove(); #_\~Vrf(#  
System.arraycopy(h.queue,1,data,0,data.length); A@'W $p?5r  
}  2oASz|  
K 5[ 3WHQ  
private static class MaxHeap{ bOKNWI   
~C x2Q4E  
void init(int[] data){ Tyl"N{ _  
this.queue=new int[data.length+1]; KVy5/A/8c  
for(int i=0;i queue[++size]=data; D<6k AGE  
fixUp(size); #::vMnT  
} hZJqo +s  
} "r+<=JU>OV  
1X.1t^HH:  
private int size=0; !{;RtUPz*  
e[!>ezaIY  
private int[] queue; eO G%6C%a  
RVnYe='  
public int get() { o#6}?g.  
return queue[1]; 6P|neb}  
} oFp&j@`k8j  
sAlgp2-  
public void remove() { ztpb/9J9  
SortUtil.swap(queue,1,size--); k]g\` gc  
fixDown(1); k({8C`&tK/  
} ,cEcMaJ  
file://fixdown gK#w$s50  
private void fixDown(int k) { pC8i &_A  
int j; [Nc  Ok,  
while ((j = k << 1) <= size) { Pme?`YO$x  
if (j < size %26amp;%26amp; queue[j] j++; 9Z 4R!Q  
if (queue[k]>queue[j]) file://不用交换 :g";p.~=  
break; XU7bWafy  
SortUtil.swap(queue,j,k); $)V4Eu;  
k = j; -2_$zk*n  
} zPYa@0I  
} ?2;G_P+  
private void fixUp(int k) { K e8cfd~c  
while (k > 1) { $n"Llw&)  
int j = k >> 1; L+L9)8FJ  
if (queue[j]>queue[k]) V  ""  
break; )`^:G3w  
SortUtil.swap(queue,j,k); {5JXg9um  
k = j; C-Z,L#  
} }1dh/Cc`  
} *93 N0m4Rl  
i\G3 u#  
} _T$\$v$ {  
T-TH. R  
} 1-#tx*>AY  
4{KsCd)  
SortUtil: p%-9T>og  
!TF VBK  
package org.rut.util.algorithm; L')zuI  
<9~qAq7^  
import org.rut.util.algorithm.support.BubbleSort; aJ5R0Y,  
import org.rut.util.algorithm.support.HeapSort; %ZK}y{u\  
import org.rut.util.algorithm.support.ImprovedMergeSort; x7?{*w&r  
import org.rut.util.algorithm.support.ImprovedQuickSort; rGWTpN  
import org.rut.util.algorithm.support.InsertSort; Xk$lQMwZ  
import org.rut.util.algorithm.support.MergeSort; .w~USJ=X  
import org.rut.util.algorithm.support.QuickSort; )EoG@:[  
import org.rut.util.algorithm.support.SelectionSort; BR'|hG  
import org.rut.util.algorithm.support.ShellSort; ~7 Tz Ub  
u+_#qk0NfK  
/** *$!LRmp?  
* @author treeroot 9D,& )6  
* @since 2006-2-2 Up&q#vqIj  
* @version 1.0 /v[- KjTj7  
*/ :w+Rs+R  
public class SortUtil { _c2#  
public final static int INSERT = 1; ;l'I. j  
public final static int BUBBLE = 2; o[ 6hUX0tN  
public final static int SELECTION = 3; l ;uEw  
public final static int SHELL = 4; d9(FwmE  
public final static int QUICK = 5; zBbTj IFQ  
public final static int IMPROVED_QUICK = 6; ?*4zNhL  
public final static int MERGE = 7; "^H+A-R[  
public final static int IMPROVED_MERGE = 8; x-<dJ}`  
public final static int HEAP = 9; qJ@?[|2R  
$H^6I8>  
public static void sort(int[] data) { sq_:U_tJ  
sort(data, IMPROVED_QUICK); pP @#|T  
} d\v _!7  
private static String[] name={ r!S iR(  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 8~i@7~ J  
}; VA0TY/{ ]  
!Xm:$KH  
private static Sort[] impl=new Sort[]{ 7}Sw(g)o7  
new InsertSort(), Q$%@.@  
new BubbleSort(), m_B5M0},  
new SelectionSort(), Ogb_WO;)  
new ShellSort(), 9O"?T7i"#  
new QuickSort(),  J{y@ O  
new ImprovedQuickSort(), T*IudxW  
new MergeSort(), i ,'~Ds  
new ImprovedMergeSort(), yrjm0BM#  
new HeapSort() j*5VJ:  
}; e([&Nr8h  
jhLh~. 8  
public static String toString(int algorithm){ D&shrKFx  
return name[algorithm-1]; m{*l6`dF  
} VxCH}&!  
9c6=[3)V  
public static void sort(int[] data, int algorithm) { ,J|};s+  
impl[algorithm-1].sort(data); AOe~VW  
} f As:[  
^{w&&+#,q  
public static interface Sort { +K?h]v]%  
public void sort(int[] data); ')BQ 0sg  
} so7;h$h!H  
ld $`5!Z  
public static void swap(int[] data, int i, int j) { W.a/k7 p  
int temp = data; L6a8%%`  
data = data[j]; O v-I2  
data[j] = temp; 4g 1h:I/  
} +FiV!nRkZ  
} n'ro5D  
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:
3+5=?,请输入中文答案:八 正确答案:八