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
  • 7471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。 TJO$r6&  
插入排序: \g39>;iR  
'p&,'+x  
package org.rut.util.algorithm.support; qUkM No3  
6:7[>|okQ  
import org.rut.util.algorithm.SortUtil; ;=ddv@  
/** $Iwvecn?I  
* @author treeroot _F;v3|`D@<  
* @since 2006-2-2 _qxI9Q}<"  
* @version 1.0 ?FQ#I~'<  
*/ XVYFyza;  
public class InsertSort implements SortUtil.Sort{ @Nek;xJ  
W&?Qs=@  
/* (non-Javadoc)  <OMwi9  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "<!U  
*/ aixX/se  
public void sort(int[] data) { JL1ajlm~  
int temp; WEimJrAn  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ::|~tLFu  
} qz-QVY,  
} "?I#!t%'  
} /o;M ?Nt6  
t<!;shH,s  
} Wh)D_  
d#g))f;  
冒泡排序: w7V\_^&Id  
#X}HF$t{=  
package org.rut.util.algorithm.support; sS>b}u+v#!  
P=QxfX0B  
import org.rut.util.algorithm.SortUtil; 9r!8BjA  
~zqb{o^pT  
/** /,Xl8<~#  
* @author treeroot Hc)z:x;Sj  
* @since 2006-2-2 =:- fK-d  
* @version 1.0  )(G9[DG  
*/ K3yQ0k |  
public class BubbleSort implements SortUtil.Sort{ !GqFX+!Ju  
6p9fq3~7Y  
/* (non-Javadoc) HEF e?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g'(bk@<BP  
*/ fE-R(9K  
public void sort(int[] data) { ZEP?~zV\A  
int temp; uzy5rA==  
for(int i=0;i for(int j=data.length-1;j>i;j--){ 9P?0D  
if(data[j] SortUtil.swap(data,j,j-1); pM?;QG;jA  
} $ Habhw  
} jx: IK  
} w&p+mJL.  
} 3 jZMXEG)  
CL=%eSsuD  
} C0wtMD:G  
~]?:v,UIm(  
选择排序:  Aqy w  
VI0wul~M  
package org.rut.util.algorithm.support; v ,8;: sD  
>t+U`6xK  
import org.rut.util.algorithm.SortUtil; =@HS  
/eF@a!  
/** mptFd  
* @author treeroot /Z:j:l  
* @since 2006-2-2 #,%bW[L<N  
* @version 1.0 ?d7,0Ex P  
*/ x< A-Ws{^V  
public class SelectionSort implements SortUtil.Sort { p}1i[//S  
=&}@GsXdo  
/* ^4dE8Ve"@  
* (non-Javadoc) U\KMeaF5e-  
* e97G]XLR  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <xI<^r'C9e  
*/ X?5{2ulrI  
public void sort(int[] data) { Hn|W3U  
int temp; O=B =0  
for (int i = 0; i < data.length; i++) { De?VZ2o9"  
int lowIndex = i; X0/slOT  
for (int j = data.length - 1; j > i; j--) { ;qshd'?*  
if (data[j] < data[lowIndex]) { `Ij@;=(  
lowIndex = j; ^q:-ZgM>  
} (jT)o,IW&  
} Y6` xb`  
SortUtil.swap(data,i,lowIndex); 1EyN |m|  
} 4&iQo'  
} m2(>KMbi  
4Yj1Etq.E  
} .ZTvOm'mB^  
Ez3fL&*  
Shell排序: z$~x 2<  
F9K%f&0 a  
package org.rut.util.algorithm.support; xye-Z\-t  
gjS|3ED  
import org.rut.util.algorithm.SortUtil; '!HTE` Aj  
po| Ux`u  
/** `2lS@  
* @author treeroot n6/Ous  
* @since 2006-2-2 (Ou%0 KW  
* @version 1.0 GAz -yCJp  
*/ kpm;ohd  
public class ShellSort implements SortUtil.Sort{ b9b Ivjm_  
M5dYcCDE  
/* (non-Javadoc) OUX7 *_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) v=U<exM6%  
*/ ]G/m,Zv*:  
public void sort(int[] data) { /0s1;?  
for(int i=data.length/2;i>2;i/=2){ 3$|/7(M&DA  
for(int j=0;j insertSort(data,j,i); Pvxb6\G&d  
} -`O{iHfM|P  
} TZn 15-O  
insertSort(data,0,1); %w`d  
} m'o dVZ7  
^_2c\mw_I  
/** CMt<oT6.?  
* @param data |xO*!NR  
* @param j %yRXOt2(  
* @param i "Xq_N4  
*/ Qb536RpcTY  
private void insertSort(int[] data, int start, int inc) { E&M(QX5  
int temp; -+R,="nRQ  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); vObZ|>.J~O  
} "+HJ/8Dd1  
} 70'OS:J=\  
} LEb$Fd  
s,z~qL6&  
} 19 !?oeOU  
*1|7%*!8  
快速排序: ACszx\[K3  
+|A`~\@N  
package org.rut.util.algorithm.support; 9vI~vl l  
w"hd_8cO  
import org.rut.util.algorithm.SortUtil; BU`X_Z1)  
;%tFi  
/** R\j~X@vI  
* @author treeroot &K ~k'P~m  
* @since 2006-2-2 &g`&#IRz  
* @version 1.0 m,.Y:2?*V  
*/ +VIA@`4  
public class QuickSort implements SortUtil.Sort{ 0vY_  
_imuyt".+  
/* (non-Javadoc) { bj!]j  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) K~W(ZmB  
*/ EVmBLH-a  
public void sort(int[] data) { 6^`iuC5  
quickSort(data,0,data.length-1); eqx }]#  
} 1I Xtu   
private void quickSort(int[] data,int i,int j){ )Z7Vm2a  
int pivotIndex=(i+j)/2; Uh }PB3WZ  
file://swap 2]!@)fio`  
SortUtil.swap(data,pivotIndex,j); |iM,bs  
HsY5wC  
int k=partition(data,i-1,j,data[j]); -3Kh >b)  
SortUtil.swap(data,k,j); w~lH2U'k}  
if((k-i)>1) quickSort(data,i,k-1); %M6 OLq!K  
if((j-k)>1) quickSort(data,k+1,j); 4G&`&fff]  
#M-!/E  
} Z #[?~P  
/** JEjxY&  
* @param data 9+ 'i(q z  
* @param i ,H=k5WA4m  
* @param j !KHgHKEW^  
* @return uibmQ|AQ  
*/ hU?DLl:bXF  
private int partition(int[] data, int l, int r,int pivot) { MAh1tYs4D  
do{ ( t&RFzE?G  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); K_i|cYGV  
SortUtil.swap(data,l,r); a5*r1,  
} ImXYI7PL  
while(l SortUtil.swap(data,l,r); 4f LRl-)  
return l; \xYVnjG,  
} hD6BP  
d NACE*g;q  
} lF}[ YL  
>pq~ &)^u  
改进后的快速排序: @16GF!.  
rN0<y4)!  
package org.rut.util.algorithm.support; 7=-Yxt  
8>KUx]AN  
import org.rut.util.algorithm.SortUtil; g=Xf&}&=x  
~\":o:qyc  
/** {>>X3I  
* @author treeroot 3?Pg ;  
* @since 2006-2-2 zPt<b!q  
* @version 1.0 `Ba]i)!  
*/ #g{R+#fm  
public class ImprovedQuickSort implements SortUtil.Sort { -FZC|[is  
fi?4!h  
private static int MAX_STACK_SIZE=4096; FnvpnU",  
private static int THRESHOLD=10; GJ9>i)+h;  
/* (non-Javadoc) yD+4YD  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0Lo8pe`DH  
*/  .NOAp  
public void sort(int[] data) { HTQZIm  
int[] stack=new int[MAX_STACK_SIZE];  -WC0W  
l=?e0d>O  
int top=-1; (< +A  w7  
int pivot; (Pc>D';{S  
int pivotIndex,l,r; Hw \of  
$/wm k7T  
stack[++top]=0; WZQ2Mi<&1'  
stack[++top]=data.length-1; c'oiW)8;A  
$ XjijD9R  
while(top>0){ \n<! ld  
int j=stack[top--]; {'b;lA]0  
int i=stack[top--]; 5m8u:6kQu  
<)7aNW.  
pivotIndex=(i+j)/2; b\P:a_vq  
pivot=data[pivotIndex]; q G%Y& P  
)Q2IYCj{  
SortUtil.swap(data,pivotIndex,j); U5Hi9fe  
C;W@OS-;  
file://partition OBi(]l}^O  
l=i-1; YR?Y:?(  
r=j; z; GQnAG@  
do{ g=Z52y`N<  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 25>R^2,LiE  
SortUtil.swap(data,l,r); RpJ7.  
} %"WENa/t  
while(l SortUtil.swap(data,l,r); ifD WN*k6  
SortUtil.swap(data,l,j); '=dQ$fs  
h;V 4|jM  
if((l-i)>THRESHOLD){ $|K: 9  
stack[++top]=i; ,L ig6Z`  
stack[++top]=l-1; |ADf~-AY  
} 8t!jo.g  
if((j-l)>THRESHOLD){ D$l!lRu8+L  
stack[++top]=l+1; sq|\!T  
stack[++top]=j; ^{M$S0g|N  
} P:{Aq n~zR  
WvfP9(-  
} (*S<2HN5  
file://new InsertSort().sort(data); ZHTi4JY  
insertSort(data); 1T!o`*  
} A \/~u"Y  
/** s"jvO>[  
* @param data M}8P _<,  
*/ #9,8{ O"  
private void insertSort(int[] data) { -1Q24jrO-  
int temp; Xm#W}Y'  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); SBxpJsW >  
} #pvq9fss,}  
} [F6 )Z[uG  
} +|/0sPW(  
M%E<]H2;S  
} :\^b6"}8  
D ,kxB~  
归并排序: 2uj .*  
HE&)N clY  
package org.rut.util.algorithm.support; Fm`*j/rq  
a_b#hM/c;  
import org.rut.util.algorithm.SortUtil; Fb{N>*l.  
p9"dm{  
/** UT;%I_i!'  
* @author treeroot D;en!.[Z  
* @since 2006-2-2 '{ <RX  
* @version 1.0 x?S86,RW  
*/ 5*44QV  
public class MergeSort implements SortUtil.Sort{ |[`YGA4  
!)bZ.1o  
/* (non-Javadoc) 7O55mc>cF  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9&sb,^4  
*/ 0YiTv;mq;  
public void sort(int[] data) { 5]&sXs  
int[] temp=new int[data.length]; }O\IF}X  
mergeSort(data,temp,0,data.length-1); i:s=  
} M-@RgWvF  
ZID-~ 6  
private void mergeSort(int[] data,int[] temp,int l,int r){ 48:xvTE?N  
int mid=(l+r)/2; )U~|QdZ  
if(l==r) return ; M'%4BOpI6`  
mergeSort(data,temp,l,mid); W&hW N9iR  
mergeSort(data,temp,mid+1,r); m7^f%<l  
for(int i=l;i<=r;i++){ , 5W7a  
temp=data; DO~ D?/ia  
} v]EMJm6d|  
int i1=l; 7Fj8Mp|  
int i2=mid+1; C3'xU`=7  
for(int cur=l;cur<=r;cur++){ oJA_" xp  
if(i1==mid+1) d*8*9CpO:  
data[cur]=temp[i2++]; ny KfM5s_  
else if(i2>r) Z@s[8wrmPl  
data[cur]=temp[i1++]; vn}m-U XA*  
else if(temp[i1] data[cur]=temp[i1++]; Va )W[I  
else %`i*SF(gV  
data[cur]=temp[i2++]; 8\s#law  
} p7QZn.,=u  
} /?;'y,(Q  
fXMY.X>f  
} p_I^7 $  
Gazva/e  
改进后的归并排序: v>keZZOs  
t+v %%N_  
package org.rut.util.algorithm.support; NgTB4I 8P  
+,,(8=5 g  
import org.rut.util.algorithm.SortUtil; -Cyo2wk  
{py%-W  
/** O}i+ 1  
* @author treeroot _eGYwBm  
* @since 2006-2-2 C:J frg`  
* @version 1.0 LDQ,SS,  
*/ V/#Ra  
public class ImprovedMergeSort implements SortUtil.Sort { '8]p]#l  
{&+M.Xn  
private static final int THRESHOLD = 10; 0`"oR3JY  
;t0 q ?9  
/* t`B@01;8A  
* (non-Javadoc) w=#'8ZuU  
* NK qI x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [W3X$r~-  
*/ wQG?)aaM  
public void sort(int[] data) { ,ayEZ#4.m  
int[] temp=new int[data.length]; =mXC,<]  
mergeSort(data,temp,0,data.length-1); $wAR cS  
} Ba[,9l[  
Qs\a&Q=0H  
private void mergeSort(int[] data, int[] temp, int l, int r) { q=pRe-{  
int i, j, k; jJIP $  
int mid = (l + r) / 2; x*H#?.E  
if (l == r) +j{Cfv$do  
return; =!t;e~^8]  
if ((mid - l) >= THRESHOLD) 1 !_p  
mergeSort(data, temp, l, mid); 1r=cCM  
else A,F~*LXm  
insertSort(data, l, mid - l + 1); qFWN._R  
if ((r - mid) > THRESHOLD) Ry >y  
mergeSort(data, temp, mid + 1, r); SV o?o|<  
else / <)Vd  
insertSort(data, mid + 1, r - mid); KRL.TLgq)  
j{lurb)y  
for (i = l; i <= mid; i++) { %M`48TW)  
temp = data; "}v.>L<P  
} d3:GmB .  
for (j = 1; j <= r - mid; j++) { ,!_6X9N-h  
temp[r - j + 1] = data[j + mid]; # ][i!9$  
} i2Wvu3,D3-  
int a = temp[l]; @Fc:9a@  
int b = temp[r]; US$$ADq  
for (i = l, j = r, k = l; k <= r; k++) { @dv8 F "v  
if (a < b) { ?JZ$M  
data[k] = temp[i++]; g4A{RI  
a = temp; e@vtJaSu  
} else { ]mMJ6n  
data[k] = temp[j--]; 42]7N3:'  
b = temp[j]; #_.J kY  
} l~"T>=jq3  
} SAdT#0J  
} 2 `>a(  
cCZp6^/<x  
/** y7hDMQ c'  
* @param data 9nN1f@Y  
* @param l 36{GZDGQ  
* @param i >[Vc$[62  
*/ ;p+'?%Y}  
private void insertSort(int[] data, int start, int len) { To(I<W|{  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); :\|A.# U  
} GqHW.s5  
} =dPokLXn  
} Kkp dcc  
} 0Ncpi=6  
@e<( o UE  
堆排序: k4iiL<|  
yU!1q}L!  
package org.rut.util.algorithm.support; G$f%]A1  
^:-GPr  
import org.rut.util.algorithm.SortUtil; 6C&&="uww  
<kFLwF?PM'  
/** [eD0L7 1[  
* @author treeroot [XY%<P3D  
* @since 2006-2-2 J- S.m(  
* @version 1.0 ;(?tlFc  
*/ Dsm1@/"i|7  
public class HeapSort implements SortUtil.Sort{ ] :;x,$k  
K ~mUO  
/* (non-Javadoc) !Q[v"6?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) y2I7Zd .  
*/ rD=D.1_   
public void sort(int[] data) { -g~+9/;n  
MaxHeap h=new MaxHeap(); . f_ A%  
h.init(data); \<pr28  
for(int i=0;i h.remove(); ?zBu` 7j  
System.arraycopy(h.queue,1,data,0,data.length); c9nR&m8(+  
} 'O(=Pz  
Gt.'_hf Js  
private static class MaxHeap{ ! $$>D"  
sm-[=d%@L  
void init(int[] data){ 83c2y;|8  
this.queue=new int[data.length+1]; QP%_2m>yhl  
for(int i=0;i queue[++size]=data; r+bGZ  
fixUp(size); -~{Z*1`,  
} O#U maNj/  
} ."+lij=56  
8)0]cX  
private int size=0; 0:v !'  
-qj[ck(y  
private int[] queue; rk8pL[|  
o^/ #i`)  
public int get() { |@AXW   
return queue[1]; X6cn8ak 3  
} OPNRBMD  
I uxf`sd  
public void remove() { CI{2(.n4  
SortUtil.swap(queue,1,size--); S-Y{Vi"2  
fixDown(1); P{9:XSa%  
} R->x_9y-R  
file://fixdown <(KCiM=E$  
private void fixDown(int k) { -iiX!@  
int j; _uO$=4Sd  
while ((j = k << 1) <= size) { ,m<YS MKX  
if (j < size %26amp;%26amp; queue[j] j++; 9InP2u\&:  
if (queue[k]>queue[j]) file://不用交换 >T[/V3Z~K  
break; KdCrI@^  
SortUtil.swap(queue,j,k); 1w=.vj<d8  
k = j; NVb}uH*i  
} Y2DL%'K^  
}  tA#$q;S  
private void fixUp(int k) { *|=D 0  
while (k > 1) { SxY z)aF~  
int j = k >> 1; i]c{(gd`  
if (queue[j]>queue[k]) W p)!G  
break; 'o IE:#b  
SortUtil.swap(queue,j,k); zufphS|  
k = j; y5sH7`2+5  
} tLOGj?/r  
} {c*$i^T  
K(?V]Mxl6  
} Q("m*eMRt  
uU 7 <8G  
} WPRk>j  
;JkIZ8!  
SortUtil: G0 EXgq8  
P7-k!p"  
package org.rut.util.algorithm; BsFO]F5mmX  
9:{<:1?  
import org.rut.util.algorithm.support.BubbleSort; I#MPJ@*WT  
import org.rut.util.algorithm.support.HeapSort; fo,0NxF9  
import org.rut.util.algorithm.support.ImprovedMergeSort; Ixn|BCi60A  
import org.rut.util.algorithm.support.ImprovedQuickSort; ytY\&m  
import org.rut.util.algorithm.support.InsertSort; ZhY{,sy?QO  
import org.rut.util.algorithm.support.MergeSort; 0i\>(o  
import org.rut.util.algorithm.support.QuickSort; 5}G_2<G  
import org.rut.util.algorithm.support.SelectionSort; STnMBz7  
import org.rut.util.algorithm.support.ShellSort; aE'nW_f  
\s#~ %l  
/** +DRt2a #  
* @author treeroot 3?B1oIHQ  
* @since 2006-2-2 vNw(hT5750  
* @version 1.0 7"Xy8]i{z  
*/ zn>lF  
public class SortUtil { edMCj  
public final static int INSERT = 1; <Z-Pc?F&(k  
public final static int BUBBLE = 2; \) dp  
public final static int SELECTION = 3; oSrA4g  
public final static int SHELL = 4; fZ-"._9UyH  
public final static int QUICK = 5; %$ya>0?mq  
public final static int IMPROVED_QUICK = 6; N 8[r WJ#  
public final static int MERGE = 7; X}Q4;='C-  
public final static int IMPROVED_MERGE = 8; g}hUCx(  
public final static int HEAP = 9; 1#x5 o2n  
eA1g}ipm  
public static void sort(int[] data) { ~+'f[!^  
sort(data, IMPROVED_QUICK); \Hp!NbnF$  
} _9=87u0  
private static String[] name={ `e ZDG  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ~a_hOKU5  
}; 7;p/S#P:  
bR7tmJ[)Z  
private static Sort[] impl=new Sort[]{ cgG*7E  
new InsertSort(), .h <=C&Yg  
new BubbleSort(), fcdXj_u  
new SelectionSort(), G T~rr*X  
new ShellSort(), &n | <NF  
new QuickSort(), |y7TYjg6  
new ImprovedQuickSort(), M<Bo<,!ua  
new MergeSort(), n*9QSyJN]  
new ImprovedMergeSort(), S!A:/(^WB  
new HeapSort() <9&GOaJ  
}; h1q 3}-  
#v(As) 4^  
public static String toString(int algorithm){ DTC IVLV  
return name[algorithm-1]; FZgf"XM>  
} Zw)=Y.y!  
)vq}$W!:9  
public static void sort(int[] data, int algorithm) { HB p??.r  
impl[algorithm-1].sort(data); (72%au  
} U)'YR$2<  
R>"pJbS;L  
public static interface Sort { L<dh\5#p9Y  
public void sort(int[] data); pbG-uH^  
} N|mggz  
}N9PV/a  
public static void swap(int[] data, int i, int j) { %S^ke`MhF  
int temp = data; _8$xsj4_  
data = data[j]; 1CJ1-]S(3  
data[j] = temp; pzRVX8  
} jy~hLEt7  
} Wg%]  
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
如果您在写长篇帖子又不马上发表,建议存为草稿
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八