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
  • 7905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。 oIj -Y`92!  
插入排序: %]4=D)Om  
<9:~u]ixt  
package org.rut.util.algorithm.support; C(8!("tU  
;R<V-gab  
import org.rut.util.algorithm.SortUtil; L.JL4;U P  
/** i\DU<lD5VN  
* @author treeroot GDiyFTr  
* @since 2006-2-2 L8Z@Dk7Y  
* @version 1.0 z[O*f#t  
*/ ;kR=vv  
public class InsertSort implements SortUtil.Sort{ 0jPUDkH*  
^ZRZ0:rZ  
/* (non-Javadoc) GZn=Hgv8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jP2#w{xq  
*/ |b^UPrz)VS  
public void sort(int[] data) { rce._w }  
int temp; a"t~ K  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); CBpwtI>p  
} iE_[]Vgc  
} &RI;!qn6(  
} Rh$+9w  
y7rT[f/J  
} s aHY9{)  
BgDWl{pm  
冒泡排序: kd]CV7(7  
EgbH{)u  
package org.rut.util.algorithm.support; FgrVXb_q  
0L,!o[L*  
import org.rut.util.algorithm.SortUtil; XJy.xI>;  
0_Elxc  
/** ukc 7Z OQ  
* @author treeroot Tow!5VAM  
* @since 2006-2-2 gSj0+|  
* @version 1.0 B%k C>J  
*/ 0*oavY*  
public class BubbleSort implements SortUtil.Sort{ 02NVdpo[wU  
4sBvW  
/* (non-Javadoc) guf*>qNr  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )^"V}z t  
*/ Dfc% jWbA  
public void sort(int[] data) { 2+C:Em0yI  
int temp; ;4GGXT++L  
for(int i=0;i for(int j=data.length-1;j>i;j--){ 0M&~;`W}  
if(data[j] SortUtil.swap(data,j,j-1); 19pFNg'kA  
} $;~YgOVZ5  
} P|p X F~  
} =K|#5p`  
} C@zG(?X  
N^PkSf[)h5  
} :O,r3O6  
#`K{vj  
选择排序: ue@W@pj  
jt9- v-  
package org.rut.util.algorithm.support; >ke.ZZV?  
oR,zr  
import org.rut.util.algorithm.SortUtil; 5ug|crX  
_g( aO70Zu  
/** ~3Zz.!F  
* @author treeroot b?lRada{I  
* @since 2006-2-2 g>w {{G  
* @version 1.0 6%:~.ZfN  
*/ q bCU&G|)  
public class SelectionSort implements SortUtil.Sort { FKL@,>!<e  
0E,QOF{o  
/* 7'Hh^0<  
* (non-Javadoc) xO<%lq`  
* 4`fV_H.8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) F7nwV Dc*  
*/ KsK]y,^Z  
public void sort(int[] data) { (!J;g|58  
int temp; aJF/y3  
for (int i = 0; i < data.length; i++) { ~ qaT jSP  
int lowIndex = i; Am*lx  
for (int j = data.length - 1; j > i; j--) { ;*9<lUvu  
if (data[j] < data[lowIndex]) { 1LhZmv  
lowIndex = j; h(J$-SUs  
} ?D_iib7  
} o:"(\$  
SortUtil.swap(data,i,lowIndex); }bdoJ5  
} 9V&+xbR&  
} uudd'L  
Li0+%ijM  
} i gjn9p&_  
5K682+^5  
Shell排序: v&7<f$5  
84reyA  
package org.rut.util.algorithm.support; .3XiL=^~Qp  
rnp; R  
import org.rut.util.algorithm.SortUtil; /0Qo(  
*O@Zn  
/** !b4AeiL>w  
* @author treeroot @ ,;h!vB*=  
* @since 2006-2-2 m|x_++3  
* @version 1.0 :hW(2=%  
*/ "UhE'\()  
public class ShellSort implements SortUtil.Sort{ A #m_w*  
N;BuBm5K  
/* (non-Javadoc) T5e#Ll/  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) R^sgafGl=  
*/ Z(t O]tQE  
public void sort(int[] data) { ZNk[Jn [.  
for(int i=data.length/2;i>2;i/=2){ ,/TmTX--d  
for(int j=0;j insertSort(data,j,i); NZADHO@0  
} I|K!hQ"m  
} :oC;.u<*8  
insertSort(data,0,1); *8;<w~  
} ' S,g3  
o"L8n(\  
/** *n# =3D  
* @param data @JLN3  
* @param j Qb%; |li  
* @param i hNkv lk'Ui  
*/ PVdN)tG5  
private void insertSort(int[] data, int start, int inc) { "oFi+']*  
int temp; . .S3-(xW  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); UzIE,A  
} H.C*IL9  
} +Zr~mwM=x  
} 4KSq]S.  
nhC8Tq[m  
} f<nK;  
=3SJl1w1  
快速排序: |;t{L^  
PNo:vRtsq  
package org.rut.util.algorithm.support; Y}s6__  
!O}e)t  
import org.rut.util.algorithm.SortUtil; 9%3+\[s1  
Ie=gI+2  
/** K"5q387!  
* @author treeroot 61&{I>~1  
* @since 2006-2-2 YRf$?xa  
* @version 1.0 +oO7UWs>6  
*/ i^Jw`eAmT  
public class QuickSort implements SortUtil.Sort{ F^%\AA]8  
Fv$w:r]q6  
/* (non-Javadoc) m$(OQ,E  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Mw-L?j0o[k  
*/ @2d9 7.X  
public void sort(int[] data) { M.Tp)ig\#  
quickSort(data,0,data.length-1); DTo"{!  
} -'d`(G"  
private void quickSort(int[] data,int i,int j){ +%Kk zdS'  
int pivotIndex=(i+j)/2; #Z `Tk)u/  
file://swap omy3<6  
SortUtil.swap(data,pivotIndex,j); iyr8*L\  
tX1`/}``  
int k=partition(data,i-1,j,data[j]); )\2KDXc  
SortUtil.swap(data,k,j); uR.pQo07y<  
if((k-i)>1) quickSort(data,i,k-1); }U5$~, *p  
if((j-k)>1) quickSort(data,k+1,j); QHUFS{G ]  
'NfsAE  
} 6-/W4L)?>  
/** vkR ~nIp  
* @param data {%^4%Eco  
* @param i y!R9)=/M  
* @param j qxHn+O!h  
* @return fl9VokAT  
*/ _?'W30Dg  
private int partition(int[] data, int l, int r,int pivot) { )^4Ljb1  
do{ "*l{ m2"  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); v3t<rv  
SortUtil.swap(data,l,r); KU0Ad);e  
} BI*0JKQu  
while(l SortUtil.swap(data,l,r); T \- x3i  
return l; \dE{[^.5  
} 1uG)U)y/Q  
#r?[@aJ  
} P ecZuv  
PU1YR;[Fe  
改进后的快速排序: F6Q%<p a  
8'TIDu  
package org.rut.util.algorithm.support; 8f)pf$v`   
fi~@J`  
import org.rut.util.algorithm.SortUtil; dV'^K%#  
eX}aa0  
/** /?XI,#j3kM  
* @author treeroot \Zx&J.D  
* @since 2006-2-2 EL z5P}L6  
* @version 1.0 Ars*H,9>e  
*/ }0@@_Y]CC  
public class ImprovedQuickSort implements SortUtil.Sort { s?->2gxhx  
i1KjQ1\a+  
private static int MAX_STACK_SIZE=4096; S# baOO  
private static int THRESHOLD=10; 7,Z<PE  
/* (non-Javadoc) y\-iGKz{0  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #<sK3PT  
*/ !T ,=kh  
public void sort(int[] data) { !^0vi3I  
int[] stack=new int[MAX_STACK_SIZE]; `Je1$)%  
QOrMz`OA  
int top=-1; g=qaq  
int pivot; /iQh'rp  
int pivotIndex,l,r; 0CXXCa7!  
`r3 klL,W'  
stack[++top]=0; FU .%td=:  
stack[++top]=data.length-1;  QV\a f  
6o9&FU  
while(top>0){ /z`tI  
int j=stack[top--]; \{~CO{II  
int i=stack[top--]; k&f/f  
]F>#0Rdc  
pivotIndex=(i+j)/2; CAom4 Sp'  
pivot=data[pivotIndex]; {TJBB/B1  
l.Ev]G/5  
SortUtil.swap(data,pivotIndex,j); sN?Rx}  
/Qef[$!(  
file://partition .Z"`:4O   
l=i-1; /4;A.r`;  
r=j; [E6ceX0  
do{ e00 }YWf%  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); _G.!^+)kEm  
SortUtil.swap(data,l,r); Ef ?|0Gm  
} N1.1  
while(l SortUtil.swap(data,l,r); Lz-|M?(  
SortUtil.swap(data,l,j); 8d Fqwpw8  
Y hmveV  
if((l-i)>THRESHOLD){ S&]r6ss  
stack[++top]=i; ; 8eGf'  
stack[++top]=l-1; gV h&c 4  
} pBv,,d`  
if((j-l)>THRESHOLD){ ^>Z7."uGY  
stack[++top]=l+1; N$C+le  
stack[++top]=j; P2C>IS  
} S+wT}_BQ  
~%M*@ fm  
} dw5"}-D  
file://new InsertSort().sort(data); )uR_d=B&  
insertSort(data); +c C. ZOS  
} Dr=$}Y  
/** ~!g2+^G7+P  
* @param data Jmg9|g!f  
*/ 1-PlRQs.1  
private void insertSort(int[] data) { (3!6nQj-t  
int temp; N'aq4okoL  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); `{ HWk^  
} k\j_hu  
} "%a<+D  
} WQiRbbX  
5/h-H r  
} T{`VUS/  
r%ebC   
归并排序: OW@)6   
FeO1%#2<y  
package org.rut.util.algorithm.support; 5jwv!L<n  
bqA`oRb\  
import org.rut.util.algorithm.SortUtil; V mQ'  
mT UoFXX[  
/** &=n/h5e0t&  
* @author treeroot :&'jh/vRN  
* @since 2006-2-2 9y5JV3  
* @version 1.0 RjO0*$>h  
*/ =_m3 ~=Z  
public class MergeSort implements SortUtil.Sort{ }BL7P-km  
mv~?1aIKD  
/* (non-Javadoc) zb"4_L@m2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) PeqW+Q.  
*/ 3tJfh=r=1  
public void sort(int[] data) { q+p}U}L= k  
int[] temp=new int[data.length]; Gr/}&+S  
mergeSort(data,temp,0,data.length-1); 2QAP$f0Ln  
} =2=rPZw9  
yZgWFf.X  
private void mergeSort(int[] data,int[] temp,int l,int r){ EStui>ho  
int mid=(l+r)/2; xDH#K0-#L  
if(l==r) return ; w{k^O7~  
mergeSort(data,temp,l,mid); JsuI&v  
mergeSort(data,temp,mid+1,r); +Ss3Ph  
for(int i=l;i<=r;i++){ zF>;7'\x  
temp=data; B]()  
} #>,E"-]f  
int i1=l; |j9aTv[`  
int i2=mid+1; -\;0gnf{J  
for(int cur=l;cur<=r;cur++){ WcY_w`*L  
if(i1==mid+1) oaPWeM+  
data[cur]=temp[i2++]; L]!![v.VY  
else if(i2>r) #ley3rJW]  
data[cur]=temp[i1++]; !!V1#?0jw  
else if(temp[i1] data[cur]=temp[i1++]; k0ai#3iJ  
else =H;'.!77Hx  
data[cur]=temp[i2++]; i|AWaG)  
} p'%S{v@5((  
} I=<Qpd4  
i '*!c  
} n^hkH1vY  
>1Hv c7DP  
改进后的归并排序: 1i~q~ O,  
Z}>F V~4  
package org.rut.util.algorithm.support; _(8#  
!5?_)  
import org.rut.util.algorithm.SortUtil; B&B:P  
DQP!e6Of  
/** W SxoGly  
* @author treeroot Do\j_  
* @since 2006-2-2 p}pd&ut1  
* @version 1.0 :3D6OBkB  
*/ Q3&D A1b`  
public class ImprovedMergeSort implements SortUtil.Sort { #Y=b7|l  
U!uJ)mm  
private static final int THRESHOLD = 10; E0fMFG^P  
esBv,b?*  
/* !u8IZpf  
* (non-Javadoc) Eri007?D  
*  4uMMf  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) An0N'yo"Z  
*/ T|D^kL%m!  
public void sort(int[] data) { !m9hL>5vR  
int[] temp=new int[data.length]; (GpP=lSSeY  
mergeSort(data,temp,0,data.length-1); [M%? [E}>  
} &oHr]=xA  
h%W,O,K/  
private void mergeSort(int[] data, int[] temp, int l, int r) { ji\LC%U-  
int i, j, k; rXMc0SPk  
int mid = (l + r) / 2; z\ONw Ml  
if (l == r) )8#-IXxp  
return; S(xs;tZ  
if ((mid - l) >= THRESHOLD) \zFCph4  
mergeSort(data, temp, l, mid); c*E7nc)u  
else \mJR^t  
insertSort(data, l, mid - l + 1); U/s Z1u-  
if ((r - mid) > THRESHOLD) h4 9q(085V  
mergeSort(data, temp, mid + 1, r); b1i~F45h  
else R13k2jLSQ  
insertSort(data, mid + 1, r - mid); %k['<BYG<  
B; NK\5>  
for (i = l; i <= mid; i++) { Fv %@k{  
temp = data; 6|f8DX%3V  
} +6jGU '}[  
for (j = 1; j <= r - mid; j++) { F*Hovxez  
temp[r - j + 1] = data[j + mid]; 8J$1N*J|  
} Z]TQ+9t  
int a = temp[l]; 9e>2kd  
int b = temp[r]; id : ^|  
for (i = l, j = r, k = l; k <= r; k++) { JBJ?|}5k4c  
if (a < b) { U; <{P  
data[k] = temp[i++]; /|UbYe,  
a = temp; =1R 2`H\  
} else { c7@/<*E+  
data[k] = temp[j--]; Pp69|lxV=k  
b = temp[j]; I{U|'a  
} bf2n%-&9g  
} .-& =\}^2l  
} aBY&]6^-  
w~crj$UM  
/** sg}<()  
* @param data iiJT%Zq`#  
* @param l K3tW Y 4-  
* @param i xy!E_CuC$  
*/ 7SYe:^Dx  
private void insertSort(int[] data, int start, int len) { Z"w}`&TC$^  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); %'e$N9zd  
} &Fuk+Cu{  
} d$+0 ;D4E  
} :PY8)39@K  
} [kr-gV  
L1Yj9i  
堆排序: k$J!,!q  
rOEBL|P0  
package org.rut.util.algorithm.support; )t-P o'RW  
Xg_l4!T_l  
import org.rut.util.algorithm.SortUtil; w?nSQBz$  
iS.gN&\z^  
/** nC??exc  
* @author treeroot  oSy9Xw  
* @since 2006-2-2 $/#[,1  
* @version 1.0  g;AW  
*/ d*k5h<jM  
public class HeapSort implements SortUtil.Sort{ Rb:?%\=  
knV*,   
/* (non-Javadoc) oVbs^sbRH  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A(`Mwh+  
*/ .T(vGiU  
public void sort(int[] data) { -:45Q{u/  
MaxHeap h=new MaxHeap(); ^ . A  
h.init(data); "ixea- 2  
for(int i=0;i h.remove(); jHatUez4O  
System.arraycopy(h.queue,1,data,0,data.length); B]gyj  
} W)  
X#ha*u~U  
private static class MaxHeap{ 0ZI}eZA j  
&%/T4$'+Y+  
void init(int[] data){ ?LU>2!jN  
this.queue=new int[data.length+1]; UEYJd&n0CB  
for(int i=0;i queue[++size]=data; HP<a'|r  
fixUp(size); f qWme:x  
} l>s@&%;Mg  
} I|;zGmg#k  
&><b/,]  
private int size=0; ?GLCd7TP  
mO]dP;,  
private int[] queue; !>Q\Y`a,*  
q?]KZ_a  
public int get() { MMD=4;X  
return queue[1]; K g.O2F77  
} THK^u+~LM  
TPKD'@:x  
public void remove() { 0blbf@XA  
SortUtil.swap(queue,1,size--); #a tL2(wJ  
fixDown(1); wHx_lsY;   
} ty%,T.@e  
file://fixdown lU$0e09  
private void fixDown(int k) { A =&`TfXu  
int j; 01RW|rN  
while ((j = k << 1) <= size) { #67 7,dn  
if (j < size %26amp;%26amp; queue[j] j++; 2<w vO 9  
if (queue[k]>queue[j]) file://不用交换 @" umY-1f  
break; f3>DmH#  
SortUtil.swap(queue,j,k); U. $Th_  
k = j; Y5"HKW^  
} # M!1W5#  
} R)isWw4  
private void fixUp(int k) { 6P,uy;PJ  
while (k > 1) { N:+d=G`x  
int j = k >> 1; `YMd0*  
if (queue[j]>queue[k]) SdnO#J}{  
break; GWWaH+F[h  
SortUtil.swap(queue,j,k); H(M{hfa|  
k = j; m"'`$/_  
} +~y>22Zfg  
} ,LmP >Q.  
~0?B  
} x_C0=Q|K3  
d:#tN4y7(  
} cJTwgm?  
 tL<.B  
SortUtil: w $`w  
^7=7V0>,:  
package org.rut.util.algorithm; E2>+V{TF  
\.Op6ECV9  
import org.rut.util.algorithm.support.BubbleSort; "{t]~urLd  
import org.rut.util.algorithm.support.HeapSort; asCcBp  
import org.rut.util.algorithm.support.ImprovedMergeSort; yg~@} _C2_  
import org.rut.util.algorithm.support.ImprovedQuickSort; ~ ^   
import org.rut.util.algorithm.support.InsertSort; [/n@BK  
import org.rut.util.algorithm.support.MergeSort; $P%cdJT0  
import org.rut.util.algorithm.support.QuickSort; ~$"2,&  
import org.rut.util.algorithm.support.SelectionSort; P4/~_$e  
import org.rut.util.algorithm.support.ShellSort; L*vKIP<EMM  
gA@Zx%0j  
/** ]T2Nr[vu  
* @author treeroot L<Z,@q `  
* @since 2006-2-2 Xw7'I  
* @version 1.0 :rjfAe=s  
*/ apfr>L3  
public class SortUtil { iXvrZofE  
public final static int INSERT = 1; HTvUt*U1  
public final static int BUBBLE = 2; _)~VKA]""  
public final static int SELECTION = 3; ?~yJ7~3TS<  
public final static int SHELL = 4; 5wl;fL~e  
public final static int QUICK = 5; #5'& |<  
public final static int IMPROVED_QUICK = 6; ``6-   
public final static int MERGE = 7; Nv6"c<(L=  
public final static int IMPROVED_MERGE = 8; uxh>r2Xr=  
public final static int HEAP = 9; ?N!kYTR%}  
%:;g|PC  
public static void sort(int[] data) { G|8>Q3D  
sort(data, IMPROVED_QUICK); ~oT*@  
} urCTP.F  
private static String[] name={ jF/S2Ty2  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" g]`YI5  
}; ?A*!rW:l;  
',LC!^:~Nw  
private static Sort[] impl=new Sort[]{ ;YW@ 3F-h  
new InsertSort(), 7v0AG:  
new BubbleSort(), U/|JAg #  
new SelectionSort(), ]yZ%wU9!  
new ShellSort(), n 9`]}bnX  
new QuickSort(), 5/7(>ivn  
new ImprovedQuickSort(), AYN dV(  
new MergeSort(), h8(>$A-  
new ImprovedMergeSort(), cY kb3(  
new HeapSort() (}.MB3`#C  
}; '\xE56v)F  
h0g?=hJq  
public static String toString(int algorithm){ uZ\+{j=  
return name[algorithm-1]; 8UqH"^9.Q7  
} jC{KI!kPt  
#d-zH:uq  
public static void sort(int[] data, int algorithm) { $uyx  
impl[algorithm-1].sort(data); >8=lX`9f{  
} ()O&O+R|)  
ugE!EEy[^  
public static interface Sort { A~<!@`NjB  
public void sort(int[] data); gkA_<,38  
} } e+`Kxy  
dIYf}7P  
public static void swap(int[] data, int i, int j) { 9!W$S[ABRB  
int temp = data; xy"'8uRi  
data = data[j]; $/;K<*O$  
data[j] = temp; Yv@n$W`:  
} WQ% O/  
} #vga qe9  
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:
10+5=?,请输入中文答案:十五