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
  • 6291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。 BGrV,h^  
插入排序: kTfE*We9  
}nK=~Wcu\  
package org.rut.util.algorithm.support; Maw$^Tz,  
<*@!>6mS  
import org.rut.util.algorithm.SortUtil; n_/;j$h  
/** 5{|tE!  
* @author treeroot -%_vb6u  
* @since 2006-2-2 .P(A x:g  
* @version 1.0 -\[&<o@/D  
*/ 9zD,z+  
public class InsertSort implements SortUtil.Sort{ ,7n8_pU  
f~R`RBZ]9  
/* (non-Javadoc) [NU@A>H  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,opS)C$  
*/ l|S_10x5  
public void sort(int[] data) { }08Sv=XM  
int temp; (o2.*x  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); d9.I83SS  
} nhLw&V3y  
} _x]q`[Dih  
} Yc-gJI*1  
] A,Og_g  
} q71V]!  
,KaO8^PB  
冒泡排序: ~(-df>  
mum4Uj  
package org.rut.util.algorithm.support; p7p6~;P  
G<FB:?|  
import org.rut.util.algorithm.SortUtil; FfM,~s<Efz  
v@1f,d  
/** {wp tOZ  
* @author treeroot ;XI=Y"h{%  
* @since 2006-2-2 c{{RP6o/j=  
* @version 1.0  q!as~{!  
*/ C,) e7  
public class BubbleSort implements SortUtil.Sort{ +EvY-mwfQ  
-1%AM40j  
/* (non-Javadoc) m+EtB6r  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Kwo0%2Onkd  
*/ +(m*??TAV  
public void sort(int[] data) { *Xk gwJq  
int temp; Dq<!wtFG[  
for(int i=0;i for(int j=data.length-1;j>i;j--){ V`_)H  
if(data[j] SortUtil.swap(data,j,j-1); jJK@i\bU_  
} gJJBRn{MI  
} u a_(wBipy  
} RwoAZ]Zg]  
} m/"}Y]n!  
<.U(%`|  
} +<^c2diX  
t $u.  
选择排序: j|IvDrm#  
|6w {%xC?"  
package org.rut.util.algorithm.support; blmY=/]  
r}|a*dh'R  
import org.rut.util.algorithm.SortUtil; (BZd%!  
PX5U)  
/** [W8?ww%qT  
* @author treeroot S20E}bS:>  
* @since 2006-2-2 #RWmP$+#=  
* @version 1.0 .tzQ hd>  
*/ B18?)LA  
public class SelectionSort implements SortUtil.Sort { im@c||  
a!mdL|eA@  
/* S*(n s<L  
* (non-Javadoc) g*$yUt  
* O/lu0acI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7DB!s@"  
*/ dRXdV7-!  
public void sort(int[] data) { Rqun}v}  
int temp; %P`|kPW1  
for (int i = 0; i < data.length; i++) { f4+}k GJN  
int lowIndex = i; vU!<-T#  
for (int j = data.length - 1; j > i; j--) { Vv.q{fRvYB  
if (data[j] < data[lowIndex]) { 4/QQX;w  
lowIndex = j; )B5(V5-!|  
} 1fcyGZq  
} V6tUijz  
SortUtil.swap(data,i,lowIndex); cQ`+ A|q  
} W%P0X5YQ  
} S3Sn_zqG  
K&%YTA  
} k4BiH5\hA  
J7$JW3O  
Shell排序: i`vgD<}  
L`0}wR?+  
package org.rut.util.algorithm.support; ]tO9<  
(#VF>;;L  
import org.rut.util.algorithm.SortUtil; FW!1 0K?  
\I~9%QJ>  
/** M{M?#Q  
* @author treeroot a3(q;^v  
* @since 2006-2-2 .="[In '  
* @version 1.0 MDh^ic5  
*/ a?ii)GGq  
public class ShellSort implements SortUtil.Sort{ ]5hGSl2  
q NE( @at  
/* (non-Javadoc) x#&%lJT  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2 NrMse  
*/ G ~|Z (}H  
public void sort(int[] data) { ,L,?xvWG  
for(int i=data.length/2;i>2;i/=2){ ZHW|P  
for(int j=0;j insertSort(data,j,i); _+x&[^gjP  
} 8A3!XA  
} S!wY6z  
insertSort(data,0,1); F!qt#Sw!\  
} O)WduhlGQ  
RB `<Zw  
/** )a'c_ 2[  
* @param data z4[S02s  
* @param j %$.]g  
* @param i {Tym#  
*/ p?+*R@O  
private void insertSort(int[] data, int start, int inc) { 97n@HL1  
int temp; ]@UJ 8hDy  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Lv`NS+fX  
} ,c_NXC^X?  
} Uq}-<q  
} ;~5w`F)  
f MDM\&f  
} |UZhMF4/-L  
C!r9+z)<  
快速排序: 6Jf\}^4@k  
y vz2eAXa  
package org.rut.util.algorithm.support; FD*w4U5  
} I;5yk,o  
import org.rut.util.algorithm.SortUtil; ><Z`) }f  
;p}X]e l}  
/** r]+N(&q  
* @author treeroot 1Ev#[FOc  
* @since 2006-2-2 NiTLQ"~e  
* @version 1.0 rM?ox  
*/ (1my9k5C  
public class QuickSort implements SortUtil.Sort{ (o5+9'y"9  
7JI&tlR4\c  
/* (non-Javadoc) |2eF~tJqc  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZHku3)V=o  
*/ *l-(tp5  
public void sort(int[] data) { >nL9%W}8M  
quickSort(data,0,data.length-1); Ltt+BUJc  
} w/(hEF '  
private void quickSort(int[] data,int i,int j){ P_f>a?OL:  
int pivotIndex=(i+j)/2; mVBF2F<4  
file://swap 5c~OG6COx  
SortUtil.swap(data,pivotIndex,j); -UM5&R+o  
 FGP~^Dr/  
int k=partition(data,i-1,j,data[j]); 8I'Am"bc \  
SortUtil.swap(data,k,j); gZs UX^%  
if((k-i)>1) quickSort(data,i,k-1); #iot.alNA  
if((j-k)>1) quickSort(data,k+1,j); 6jIW)C  
;i2N`t2  
} p2UZqq2  
/** |# zznT"  
* @param data ktr l|  
* @param i 2_4m}T3   
* @param j y ~ A]  
* @return _/)?GXwLn  
*/ > qSaF  
private int partition(int[] data, int l, int r,int pivot) { }Dig'vpMx  
do{ :W/,V^x}  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); xCd9b:jG  
SortUtil.swap(data,l,r); om"q[Tudc  
} Y(D@B|"'m  
while(l SortUtil.swap(data,l,r); cN>z`x l  
return l; o.}?K>5  
} o'3t(dyyH  
7b_Ihv   
} tVN#i  
"Iy @PR?>  
改进后的快速排序: nJTV@m XVq  
_J51 :pi  
package org.rut.util.algorithm.support; XB &-k<C  
2S1wL<qP  
import org.rut.util.algorithm.SortUtil; 7^bO`  
-4p^wNR  
/** iz`u@QKc%  
* @author treeroot :v k+[PzJ  
* @since 2006-2-2 EiY i<Z_S  
* @version 1.0 /hue]ZaQq  
*/ W39R)sra  
public class ImprovedQuickSort implements SortUtil.Sort { "R$ee^  
|5}{4k~9J  
private static int MAX_STACK_SIZE=4096; V*U7-{ *a  
private static int THRESHOLD=10; &Jj^)GBU  
/* (non-Javadoc) ybtje=3E  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P X](hc=  
*/ Llf>C,)  
public void sort(int[] data) { G}<q  
int[] stack=new int[MAX_STACK_SIZE]; A+j~oR  
Vkex&?>v$  
int top=-1; uU`zbh}]L.  
int pivot; apUV6h-v  
int pivotIndex,l,r; P%smX`v  
ru)%0Cyx  
stack[++top]=0; r]'AdJFt  
stack[++top]=data.length-1; xH\'gli/  
K}O~tff  
while(top>0){ il-v>GJU7{  
int j=stack[top--]; Y 3[<  
int i=stack[top--]; Dw{C_e  
rQK2&37-,@  
pivotIndex=(i+j)/2; Arz> P@EQ  
pivot=data[pivotIndex]; 3Nw9o6`U  
c*!bT$]~\  
SortUtil.swap(data,pivotIndex,j); p`{9kH1me  
z@VY s  
file://partition Lm'Ony^F  
l=i-1; }?>30+42:  
r=j; wmY6&^?uS  
do{ x!!: jL'L  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); l4u`R(!n5  
SortUtil.swap(data,l,r); TA}gCXE e  
} O" ['.b  
while(l SortUtil.swap(data,l,r); k$o6~u 2&  
SortUtil.swap(data,l,j); blaxUP:  
SL:o.g(>4  
if((l-i)>THRESHOLD){ !e.@Xk.P6  
stack[++top]=i; &e_M \D  
stack[++top]=l-1; yXrFH@3  
} "S#0QH%5  
if((j-l)>THRESHOLD){ ^fS~va  
stack[++top]=l+1; 3,tKqR7g  
stack[++top]=j; x1+8f2[  
} Dw;L=4F |  
*8js{G0h  
} VILzx+v M  
file://new InsertSort().sort(data); (sO;etW  
insertSort(data); YG?W8)T  
} <+sv7"a  
/** #(bMZ!/(  
* @param data athU  
*/ qN+ngk,:  
private void insertSort(int[] data) { 33[2$FBf  
int temp; wvJm)Mj+  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); O,9KhX+  
} b V;R}3)  
} O>|Q Zd  
} A#2 Fd7&  
K!HSQ,AC  
} @?G.6r~  
eNu `\  
归并排序: tQz-tQg  
N\HOo-X  
package org.rut.util.algorithm.support; RH6qi{)i!  
98Pt&C?-B  
import org.rut.util.algorithm.SortUtil; |53Zg"!  
TS$ 2K  
/** e}kEh+4  
* @author treeroot cl1h;w9s  
* @since 2006-2-2 M*8Ef^-U`t  
* @version 1.0 lkFv5^%  
*/ 5cgDHs  
public class MergeSort implements SortUtil.Sort{ =|pQA~UU#  
9dJARSUuF  
/* (non-Javadoc)  ];Bh1  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^C_Y[i ~|  
*/ EmVE<kY .  
public void sort(int[] data) { !95ZK.UT  
int[] temp=new int[data.length]; a0CmCv2#  
mergeSort(data,temp,0,data.length-1); vUvIZa  
} B Lw ssr.  
,~JxYh  
private void mergeSort(int[] data,int[] temp,int l,int r){ C:0Ra^i ?L  
int mid=(l+r)/2; .1[K\t)2  
if(l==r) return ; 6i(nyA 2!  
mergeSort(data,temp,l,mid); *Jmy:C<>  
mergeSort(data,temp,mid+1,r); ~*- eL.  
for(int i=l;i<=r;i++){ )(_}60  
temp=data; }O<=!^Y;A  
} 3!,XR\`[  
int i1=l; @i$9c)D  
int i2=mid+1; }tua0{N:z  
for(int cur=l;cur<=r;cur++){ SwV0q  
if(i1==mid+1) SLD%8:Zn  
data[cur]=temp[i2++]; b{b2L.  
else if(i2>r) O!\P]W4r$  
data[cur]=temp[i1++]; 25::z9i  
else if(temp[i1] data[cur]=temp[i1++]; O0i_h<T  
else o(u&n3Q'  
data[cur]=temp[i2++]; '_@Y  
} T7'njaLec  
} >hJ$~4?  
|K,9EM3  
} fJH09:@^%  
ltO:./6v  
改进后的归并排序: :0Rd )*k,v  
u-qg9qXJb  
package org.rut.util.algorithm.support; 7(QRG\G#  
FL,jlE_  
import org.rut.util.algorithm.SortUtil; 6p1\#6#@  
S>/p6}3]  
/** M-e!F+d{od  
* @author treeroot g G>1  
* @since 2006-2-2 2+s_*zM-  
* @version 1.0 )~rf x  
*/ |ITp$  _S  
public class ImprovedMergeSort implements SortUtil.Sort { 4askQV &hj  
" 2Dz5L1v  
private static final int THRESHOLD = 10; dpDVEEs84  
N&]v\MjI62  
/* [}9sq+##  
* (non-Javadoc) \ ExM.T  
* =!*e; L  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /XeDN-{  
*/ 0k@4;BYu  
public void sort(int[] data) { osoreo;V^  
int[] temp=new int[data.length]; d(3F:dbk  
mergeSort(data,temp,0,data.length-1); X*KQWs.  
} X|TEeE c[L  
9TIyY`2!  
private void mergeSort(int[] data, int[] temp, int l, int r) { h3Nwxj~E  
int i, j, k; %[u6<  
int mid = (l + r) / 2; Kyt.[" p  
if (l == r) !hrXud=#"  
return; XI} C|]#  
if ((mid - l) >= THRESHOLD) GbFLu`Iu  
mergeSort(data, temp, l, mid); y< W?hE[  
else 2?u>A3^R  
insertSort(data, l, mid - l + 1); AjKP -[  
if ((r - mid) > THRESHOLD) 9c1g,:8\  
mergeSort(data, temp, mid + 1, r); =Mzg={)v  
else cv=nGFx6  
insertSort(data, mid + 1, r - mid); l"5$6h  
s:'M[xI  
for (i = l; i <= mid; i++) { ZR.1SA0x?O  
temp = data; [^EU'lewnW  
} w,bILv)  
for (j = 1; j <= r - mid; j++) { /;-KWu+5=  
temp[r - j + 1] = data[j + mid]; |NJe4lw+?  
} L(\sO=t  
int a = temp[l]; jV]'/X<  
int b = temp[r]; 3FT%.dV^  
for (i = l, j = r, k = l; k <= r; k++) { *Z>Yv37P  
if (a < b) {  Zf68 EB  
data[k] = temp[i++]; 'b:e`2fl  
a = temp; 7F5 t&  
} else { e^&QT  
data[k] = temp[j--]; 'Y IFHn$!  
b = temp[j]; g]EDL<b  
} lTY%,s  
} +c.A|!-  
} l=8)_z;~D  
6&M $S$y  
/** *:J#[ET,  
* @param data xphw0Es  
* @param l (# Z2  
* @param i 7}OzTup  
*/ Fvf308[  
private void insertSort(int[] data, int start, int len) { S~d_SU~>`  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); I+Qv$#S/  
} &I Iw>,,  
} 1mhX3  
} (Z"QHfO'  
} [HI&>dm=$  
SweaE Rl  
堆排序: LTj;e[  
fu?5gzT+b  
package org.rut.util.algorithm.support; nF~</>  
,Xs%Cg_Ig  
import org.rut.util.algorithm.SortUtil; vo )pT  
4!p ~Mr[E  
/** )^7Y^u e  
* @author treeroot sDT(3{)L7  
* @since 2006-2-2 0,)B~|+  
* @version 1.0 W{O:j  
*/ GenkYtS  
public class HeapSort implements SortUtil.Sort{ e48`cX\E  
YLmzMD>  
/* (non-Javadoc) .281;] =  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ]as_7  
*/ #t:]a<3Y2  
public void sort(int[] data) { `2c>M\c4U  
MaxHeap h=new MaxHeap(); -CfGWO#Gbx  
h.init(data); Zx,R6@l  
for(int i=0;i h.remove(); ZKzXSI4  
System.arraycopy(h.queue,1,data,0,data.length); :*gYzk8  
} aehGT|  
!`q*{Ojx  
private static class MaxHeap{ EF=.L{  
ZZOBMF7  
void init(int[] data){ v+U( #"  
this.queue=new int[data.length+1]; Xoyk 'T] -  
for(int i=0;i queue[++size]=data; qIcQPJn!}  
fixUp(size); u.*@ l GVW  
} g <^Y^~+E  
} |={><0  
}^Be^a<ub  
private int size=0; Nr=ud QA{  
;v'7l>w3\w  
private int[] queue; hYMIe]kJ  
;<`F[V Zau  
public int get() { ?P@fV'Jo  
return queue[1]; ztf VXmi'  
} C`+g:qT  
;"SnCBt:>  
public void remove() { $3S6{"  
SortUtil.swap(queue,1,size--); fI>>w)5  
fixDown(1); ?#!Hm`\.  
} kKVd4B[#*  
file://fixdown %[\: 8  
private void fixDown(int k) { jK/2n}q&]  
int j; H1_XEcaM+*  
while ((j = k << 1) <= size) { s|rlpd4y  
if (j < size %26amp;%26amp; queue[j] j++; (__=*ew  
if (queue[k]>queue[j]) file://不用交换 4)BZ%1+  
break; bhe~ekb  
SortUtil.swap(queue,j,k); D.Rk{0se8  
k = j; .NcoST9a  
} wLC!vX.S  
} wH=  
private void fixUp(int k) { 4@OnMj{M  
while (k > 1) { \s?OvqI:  
int j = k >> 1; V2sWcV?  
if (queue[j]>queue[k]) !Rk1q&U5  
break; y ,isK  
SortUtil.swap(queue,j,k); _=E))Kp{z  
k = j; (oX|lPD<b  
} fx %Y(W#5  
} \ }xK$$f2,  
I"Y d6M% ;  
} 4*MjDb  
_a@&$NEox  
} )tR5JK} AV  
@;kw6f:{d  
SortUtil: pg~vteq5  
?g%5 d  
package org.rut.util.algorithm; /:v+:-lU  
(-*NRY3*  
import org.rut.util.algorithm.support.BubbleSort; Q:eIq<erY  
import org.rut.util.algorithm.support.HeapSort; H+vONg  
import org.rut.util.algorithm.support.ImprovedMergeSort; C-d|;R}Ww  
import org.rut.util.algorithm.support.ImprovedQuickSort; }qmBn`3R  
import org.rut.util.algorithm.support.InsertSort; u8qL?Aj^  
import org.rut.util.algorithm.support.MergeSort; x%d+~U;$&  
import org.rut.util.algorithm.support.QuickSort; _F>1b16:/P  
import org.rut.util.algorithm.support.SelectionSort; vF"<r,pg  
import org.rut.util.algorithm.support.ShellSort; gP8Fe =]  
0fA42*s;  
/** ]#R'hL%f  
* @author treeroot ^@ s!"c  
* @since 2006-2-2 :J]S+tQ)  
* @version 1.0 WsRG>w3"  
*/ =Xze).g  
public class SortUtil { 44FK%TmtF  
public final static int INSERT = 1; ! utgo/n  
public final static int BUBBLE = 2; H|;6K`O_  
public final static int SELECTION = 3; `M/=_O3  
public final static int SHELL = 4; yLCqlK  
public final static int QUICK = 5; zy`4]w$Lj+  
public final static int IMPROVED_QUICK = 6; fv$Y&_,5  
public final static int MERGE = 7; j b1OcI%  
public final static int IMPROVED_MERGE = 8;  A]R7H1  
public final static int HEAP = 9; ^tX+<X  
/ U1VE|T  
public static void sort(int[] data) { n4\6\0jq6  
sort(data, IMPROVED_QUICK); R9&T0Qf  
} XRXKO>4q  
private static String[] name={ )bRe"jxn7  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" iz]Vb{5n%  
}; DR3M|4[  
fl _k5Q'&p  
private static Sort[] impl=new Sort[]{ hnZI{2XzBE  
new InsertSort(), =o;QvOS;  
new BubbleSort(), -v?,{?$0  
new SelectionSort(), &&$/>[0=.  
new ShellSort(), Sxf|gDC  
new QuickSort(), !e@G[%k  
new ImprovedQuickSort(), rubqk4  
new MergeSort(), a OR}  
new ImprovedMergeSort(), I8HUH* |)n  
new HeapSort() {:m5<6?x)  
}; dVc;Tt  
uA=6 HpDB  
public static String toString(int algorithm){ oc' #sE  
return name[algorithm-1]; HRIf)n&~f  
} *V#v6r7<Y/  
G}ElQD  
public static void sort(int[] data, int algorithm) { W=M&U  
impl[algorithm-1].sort(data); ^(m`5]qr7J  
} L(TO5Y]  
>0)E\_ u  
public static interface Sort { YM{Q)115  
public void sort(int[] data); ;y<)RM  
} &N1C"Eov?  
:}x\&]uC#k  
public static void swap(int[] data, int i, int j) { (bt^L3}a  
int temp = data; heoOOP(#  
data = data[j]; SFoF]U09  
data[j] = temp; $de_>  
} (Tp+43v  
} RtH[OZu(8  
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