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
  • 7953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。 ]vuxeu[cu,  
插入排序: +O1=Ao  
P  V9q=  
package org.rut.util.algorithm.support; 8}X>u2t  
c],Zw  
import org.rut.util.algorithm.SortUtil; -aDBdZ;y  
/** a ~k*Gd(  
* @author treeroot l xP!WP  
* @since 2006-2-2 {M23a _t\  
* @version 1.0 'N&s$XB,  
*/ F)50 6  
public class InsertSort implements SortUtil.Sort{ SbobXTbG  
Wt=%.Y( x  
/* (non-Javadoc) SwO8d;e  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) J=H8^4M  
*/ ()fYhk|W  
public void sort(int[] data) {  ?QcS$i  
int temp; IFXnGDG$  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 'h> l_A  
} i7?OZh*f  
} 4)9Pgp :  
} { !t6& A  
L(/wsw~y*  
} [3] h(D  
(#Xgfb"S3  
冒泡排序: TrVQ]9;jWk  
6f J5Y iQ  
package org.rut.util.algorithm.support; OSK:Cb.-?F  
"-Uqv@  
import org.rut.util.algorithm.SortUtil; @ 3b-  
cMfnc.P\K  
/** bR=TGL&  
* @author treeroot Z"G?+gM@  
* @since 2006-2-2 ^.[+)0I  
* @version 1.0 .Pa6HA !  
*/  rjHW  
public class BubbleSort implements SortUtil.Sort{ Tt{ft?H71  
+H _ /  
/* (non-Javadoc) .Zx7+`i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !)OA7%3m  
*/ i,/Q.XL  
public void sort(int[] data) { 8yGo\\=T  
int temp; 1k)`C<l  
for(int i=0;i for(int j=data.length-1;j>i;j--){ {z# W-  
if(data[j] SortUtil.swap(data,j,j-1); (k %0|%eR  
} L ~$&+g  
} P1ynCe  
} w.Kp[  
} w'Jo).OW~  
6o GF6C  
} g1q%b%8T  
XOzZtt  
选择排序: n{E + r  
1gH>B5`  
package org.rut.util.algorithm.support; Byns6k  
p{JE@TM  
import org.rut.util.algorithm.SortUtil; {Yt i  
3 J\&t4q  
/** ~ [=2d a  
* @author treeroot T) cbpkH4  
* @since 2006-2-2 .7H* F9  
* @version 1.0 `"|u NVn  
*/ G]I^zd&P  
public class SelectionSort implements SortUtil.Sort { ?tYc2R9x6"  
d\rs/ee  
/* ;hPo5uZQ  
* (non-Javadoc) ,,(BW7(  
* -KCQ!0\F  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) QsPL^ Ny  
*/ <V*M%YWs  
public void sort(int[] data) { ;<v9i#K5  
int temp; oFS)3.  
for (int i = 0; i < data.length; i++) { o(5 ( ]bJ  
int lowIndex = i; mvBUm-X  
for (int j = data.length - 1; j > i; j--) { H{*R(S<I  
if (data[j] < data[lowIndex]) { ;gW?Fnry;  
lowIndex = j; o n?8l?iQ  
} b .v^:M  
} YRP$tz+ _  
SortUtil.swap(data,i,lowIndex); j*1O(p+  
} $g)X,iQu  
} Fy]j33E  
4Yl:1rz  
} AlT04H   
q0QB[)AP  
Shell排序: 1)h+xY  
p"/B3  
package org.rut.util.algorithm.support; sm @Ot~;  
n&}ILLc  
import org.rut.util.algorithm.SortUtil; #)$@Kvm  
qn@:A2e d  
/** 2;=xH t  
* @author treeroot <7sGA{  
* @since 2006-2-2 !4 G9`>n  
* @version 1.0 =Qw`F0t  
*/ sMAu*  
public class ShellSort implements SortUtil.Sort{ =ZN~*HLl}  
L-(.v*  
/* (non-Javadoc) fmq9u(!R  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZfN%JJOz(  
*/ S%m$LM]NCg  
public void sort(int[] data) { eI*o9k$Qs  
for(int i=data.length/2;i>2;i/=2){ :w 4Sba3  
for(int j=0;j insertSort(data,j,i); NX:i]t  
} 2M+'9 +k~  
} /CN`U7:E  
insertSort(data,0,1); [P746b_\e  
} )}jXC4  
Az>gaJ/_  
/** 8_F5c@7  
* @param data =`6_{<&  
* @param j #Y9~ Xp^.  
* @param i ,_2ZKO/k$  
*/ :*/`"M)'  
private void insertSort(int[] data, int start, int inc) { Ta3qEVs  
int temp; ln6Hr^@5  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); `>cBR,)r  
} -:o4|&g<*  
} 8z h{?0  
} !z]2+  
i>68gfx  
} m|w-}s,  
s!j[Ovtx  
快速排序: rt[w yz8  
!nkjp[p  
package org.rut.util.algorithm.support; I ;Sm<P7*  
kKqb:  
import org.rut.util.algorithm.SortUtil; N3J;_=<4  
%nfaU~IqK  
/** GF-\WD  
* @author treeroot t$lO~~atr  
* @since 2006-2-2 i7/I8y  
* @version 1.0 LJ Aqk2k  
*/ 5dE@ePO[/9  
public class QuickSort implements SortUtil.Sort{ ;NHZD  
#r}O =izi  
/* (non-Javadoc) `i,l)X]  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~S,R`wo  
*/ wjm_bEi  
public void sort(int[] data) { W5^m[,GU'  
quickSort(data,0,data.length-1); O IMsxXF\J  
} eiV[y^?  
private void quickSort(int[] data,int i,int j){ dyz)22{\!`  
int pivotIndex=(i+j)/2; V9 dRn2- [  
file://swap L:ox$RU  
SortUtil.swap(data,pivotIndex,j); .MzVc42<  
<n)J~B^  
int k=partition(data,i-1,j,data[j]); 0 xUw}T6  
SortUtil.swap(data,k,j); .BR2pf|R  
if((k-i)>1) quickSort(data,i,k-1); ,u1Yn}  
if((j-k)>1) quickSort(data,k+1,j); W'BB FG  
ur,!-t(~t  
} vjcG F'-  
/** Pde|$!Jo  
* @param data 2L<iIBSJwm  
* @param i Be=J*D!E=>  
* @param j H <|ilL'fX  
* @return kf8-#Q/B  
*/ \~]HfDu  
private int partition(int[] data, int l, int r,int pivot) { Z-fQ{&a{  
do{ c&{1Z&Y  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); .K=r.tf~  
SortUtil.swap(data,l,r); ?+]prbt)  
} 3~I|KF7x  
while(l SortUtil.swap(data,l,r); LX [_6  
return l; \{HbL,s  
} rff=ud>Jf  
\pXs&}%1,F  
} SM;*vkwz~  
i: 6`Rmz1.  
改进后的快速排序: ]ZD W+<  
`u z R!^X  
package org.rut.util.algorithm.support; vU:FDkx*nn  
H\Y5Fd9)  
import org.rut.util.algorithm.SortUtil; ?*36&Iq}  
^u? #fLr  
/** []'gIF  
* @author treeroot 8!~8:?6n  
* @since 2006-2-2 g[]UM;D*  
* @version 1.0 N%hV+># Z  
*/ eF[CiO8F2  
public class ImprovedQuickSort implements SortUtil.Sort { Tq\S-K}4!  
Fgf5OHX  
private static int MAX_STACK_SIZE=4096; 9w^lRbn  
private static int THRESHOLD=10; 3C,G~)= x  
/* (non-Javadoc) -|ho 8alF  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) cmLGMlFT  
*/ .l| [e  
public void sort(int[] data) { 66P'87G  
int[] stack=new int[MAX_STACK_SIZE]; #y<KO`Es  
iYqZBLf{S  
int top=-1;  kYls jM  
int pivot; 0pO{{F  
int pivotIndex,l,r; iP7 Cku}l  
5s=ZA*(sY  
stack[++top]=0; @H{QHi  
stack[++top]=data.length-1; NUlp4i~Q  
[Eeanl&x>  
while(top>0){ ewo]-BQS  
int j=stack[top--]; 8T7ex(w  
int i=stack[top--]; %h}Qf&U_  
TzaR{0 1  
pivotIndex=(i+j)/2; S(B$[)(  
pivot=data[pivotIndex]; qXOWCYqs  
WrA!'I  
SortUtil.swap(data,pivotIndex,j); uwQ~4   
k<.$7Pl3U  
file://partition -8HK_eQn  
l=i-1; Dl a }-A:  
r=j; #\|Ac*>  
do{ N~""Lc&  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); p?uk|C2  
SortUtil.swap(data,l,r); BBV"nm_(/  
} QKW\z aG  
while(l SortUtil.swap(data,l,r); 5r&bk`  
SortUtil.swap(data,l,j); bW]7$?acv  
HE;}B!>  
if((l-i)>THRESHOLD){ iyA=d{S;V  
stack[++top]=i; JPH! .@  
stack[++top]=l-1; rr@h9bak;g  
} @U8}K#  
if((j-l)>THRESHOLD){ M id v  
stack[++top]=l+1; jR1o<]?  
stack[++top]=j; J0ys Z]  
} lOp7rW]$  
~.Wlv;  
} KKBrw+)AJ  
file://new InsertSort().sort(data); B(pxyv)  
insertSort(data); f`$F^=  
} ,4Q1[K35B  
/** 3WVH8Sb  
* @param data Fy; sVB  
*/ ,Y:ET1:  
private void insertSort(int[] data) { fY4I(~Q  
int temp; ~ u)} /  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); W)_|jpd[  
} Bj=lUn`T:  
} Fb!Ew`;QT  
} i,H(6NL.  
i/C`]1R/  
} }508wwv  
\aN*x  
归并排序: K2XRKoG  
:17Pc\:DS  
package org.rut.util.algorithm.support; ~WjK'N4n5  
X[ 6#J  
import org.rut.util.algorithm.SortUtil; OH\(;RN*  
vGCvJ*4!  
/** 0P 5s'2w  
* @author treeroot  )>=!</@  
* @since 2006-2-2 oimM)Yo  
* @version 1.0 F@tfbDO?  
*/ _xefFy  
public class MergeSort implements SortUtil.Sort{ 'mELW)S  
Hk1[0)  
/* (non-Javadoc) O"M2*qiH  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S-f .NC}:i  
*/ Ybkydc  
public void sort(int[] data) { E/3i _R  
int[] temp=new int[data.length]; _qxBjB4t"a  
mergeSort(data,temp,0,data.length-1); S8j!?$`  
} [.(,v n?6  
|JL?"cc  
private void mergeSort(int[] data,int[] temp,int l,int r){ ^ Fnag]qQ  
int mid=(l+r)/2; Ka_g3  
if(l==r) return ; ^Q\Hy\  
mergeSort(data,temp,l,mid); gkM Q=;Nn  
mergeSort(data,temp,mid+1,r); $} @gR] Z  
for(int i=l;i<=r;i++){ :R{pV7<O  
temp=data; kR+7JUq]  
} 68?> #o865  
int i1=l; +SB>>  
int i2=mid+1; :R-_EY$k6  
for(int cur=l;cur<=r;cur++){ %/4_|.8u  
if(i1==mid+1) ]vflx^<?  
data[cur]=temp[i2++]; xZ]QT3U+  
else if(i2>r) +n%d,Pz  
data[cur]=temp[i1++]; k-N}tk/5  
else if(temp[i1] data[cur]=temp[i1++]; y;if+  
else IAHQT < ]  
data[cur]=temp[i2++]; Hl#?#A5  
} d=p=eUd2  
} Nz77" kC  
dq{+-XaEk  
} 7>E>`Nc6  
GGs7]mhA  
改进后的归并排序: Z[9t?ePL  
i'QR-B&Z  
package org.rut.util.algorithm.support; .iC!Ttr  
N/!(`Z,  
import org.rut.util.algorithm.SortUtil; ]$,3vYBf  
oF~+L3&X  
/** :4r{t?ytXw  
* @author treeroot dBkM~"  
* @since 2006-2-2 lhC^Upqw  
* @version 1.0 G J{XlH  
*/ I&6M{,rnM  
public class ImprovedMergeSort implements SortUtil.Sort { r;9 V7C  
{4$aA*  
private static final int THRESHOLD = 10; DDq?4  
i-}T t<^  
/* TILH[r&Jg  
* (non-Javadoc) JvsL]yRT  
* p/qu4[Mm  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P6I<M}p  
*/ (!PsK:wc  
public void sort(int[] data) { %g~&$oZmq  
int[] temp=new int[data.length]; sU+8'&vBp  
mergeSort(data,temp,0,data.length-1); 0v,fY2$c  
} zM(-f|wVI)  
@6 a'p  
private void mergeSort(int[] data, int[] temp, int l, int r) { :}R,a=N  
int i, j, k; y=aWSb2y'  
int mid = (l + r) / 2; e*y l_iW  
if (l == r) FHSFH>  
return; Hr7?#ZX;e  
if ((mid - l) >= THRESHOLD) va:<W H  
mergeSort(data, temp, l, mid); O#k eoC4  
else x_x_TEyyh  
insertSort(data, l, mid - l + 1); w!pj);jy{  
if ((r - mid) > THRESHOLD) GkIhPn(d  
mergeSort(data, temp, mid + 1, r); cMrO@=b;  
else )}7X4g6X   
insertSort(data, mid + 1, r - mid); A>8~deZ9  
g=KvCqJN  
for (i = l; i <= mid; i++) { `fOp>S^Q4  
temp = data; {b'  
} sYfm]Faz  
for (j = 1; j <= r - mid; j++) { )vUS).;S`  
temp[r - j + 1] = data[j + mid]; |~ytAyw  
} dC;&X g`  
int a = temp[l]; ts% n tnvI  
int b = temp[r]; ;.Ld6JRunw  
for (i = l, j = r, k = l; k <= r; k++) { I4|"Ztw  
if (a < b) { C23p1%#1  
data[k] = temp[i++]; Vh1y]#w  
a = temp; !Eg2#a?  
} else { 052Cf dq  
data[k] = temp[j--]; { P,hH~!  
b = temp[j]; %gQUog  
} V'gJtF  
} 2$MoKO x8$  
} bIlNA)g  
&uF~t |!c  
/** B9Mp3[   
* @param data Y<jX[ET!  
* @param l =''WA:,=h  
* @param i Ir-QD !!<  
*/ A|4om=MO  
private void insertSort(int[] data, int start, int len) { 3AglvGK7{  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); a~J!G:(  
} -LT!LBnEkf  
} 8#HnV%|N  
} jo0XF]  
} ~]#-S20  
<Y6zJ#BD  
堆排序: `K:n=hpF  
]R>NmjAI  
package org.rut.util.algorithm.support; _BY+Tfol  
 4Y}Nu  
import org.rut.util.algorithm.SortUtil; z]SEPYq:  
*>"NUHq  
/** %6%mf>Guf  
* @author treeroot }K@m4`T  
* @since 2006-2-2 )-o jm$  
* @version 1.0 NMfHrYHbh  
*/ 4:S]n19nq  
public class HeapSort implements SortUtil.Sort{ &ds+9A  
xJAQ'ANr  
/* (non-Javadoc) kI9I{ &J&  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }!{R;,5/n  
*/ \<(EV,m2  
public void sort(int[] data) { Yi,`uJKh  
MaxHeap h=new MaxHeap(); V9SL96'[I  
h.init(data); S-}c_zbl;  
for(int i=0;i h.remove(); ,*dLE   
System.arraycopy(h.queue,1,data,0,data.length); 1pg#@h[|t  
} \q*-9_M  
@"BhKUoV$K  
private static class MaxHeap{ jl>TZ)4}V  
Qu,R6G  
void init(int[] data){ +lfO4^V  
this.queue=new int[data.length+1]; %gs?~Xl)]  
for(int i=0;i queue[++size]=data; mj?Gc  
fixUp(size); ~;]kqYIJ  
} |1tpXpe  
} i-w$-2w  
^"p . 3Hy  
private int size=0; VBix8|  
I|c!:4  
private int[] queue; Xp9I3nd|  
)XavhS~Ff  
public int get() { NJE*/_S  
return queue[1]; EPH n"YK  
} +or<(%o @  
OJ"./*H  
public void remove() { e ><0crb  
SortUtil.swap(queue,1,size--); 7l$ u.[  
fixDown(1); :N_]*>  
} >qOG^{&x  
file://fixdown Z'j[N4%BK  
private void fixDown(int k) { qEXN} Pq<  
int j; qPD(D{,f$  
while ((j = k << 1) <= size) { g)^s+Y  
if (j < size %26amp;%26amp; queue[j] j++; A.("jb@I  
if (queue[k]>queue[j]) file://不用交换 8Th,C{  
break; KpYezdPF)  
SortUtil.swap(queue,j,k); HV)aVkr/&  
k = j; &z1U0uk  
} pZlsDM/=  
} yc~<h/}#  
private void fixUp(int k) { =k.%#h{  
while (k > 1) { O^=+"O]  
int j = k >> 1; x55W"q7  
if (queue[j]>queue[k]) ?RS:I%bL  
break; 2b"DkJj'  
SortUtil.swap(queue,j,k); ]b; m~|9  
k = j; fn,hP_  
} !hZ: \&V  
} \Z3K ~  
d8vf kV B  
} eK l; T  
-$o0P'Vx  
} 7`;f<QNo  
iLZY6?_^  
SortUtil: 3.?be.cq  
?R#$ c]  
package org.rut.util.algorithm; nOL.%  
r9&m^,U  
import org.rut.util.algorithm.support.BubbleSort; yD7}  
import org.rut.util.algorithm.support.HeapSort; kMurNA=  
import org.rut.util.algorithm.support.ImprovedMergeSort; 7~QI4'e  
import org.rut.util.algorithm.support.ImprovedQuickSort; ur8+k4] \"  
import org.rut.util.algorithm.support.InsertSort; 5Y^"&h[/  
import org.rut.util.algorithm.support.MergeSort; :K]7(y7>  
import org.rut.util.algorithm.support.QuickSort; FMeBsI9pL  
import org.rut.util.algorithm.support.SelectionSort; Wj^e)2%  
import org.rut.util.algorithm.support.ShellSort; El5} f4sl  
K2yNI q_  
/** cbyzZ#WRb  
* @author treeroot p9?kJKN  
* @since 2006-2-2 ^@AyC"K  
* @version 1.0 -)oUb=Lk{  
*/ [,Go*r  
public class SortUtil { }' AY#g  
public final static int INSERT = 1; #l4T/`u'9!  
public final static int BUBBLE = 2; EZ .3Z`  
public final static int SELECTION = 3; )S%t) }  
public final static int SHELL = 4; iBAP,cR?`  
public final static int QUICK = 5; z``wqK  
public final static int IMPROVED_QUICK = 6; /m"/#; ^l  
public final static int MERGE = 7; <A)M^,#o  
public final static int IMPROVED_MERGE = 8; aim\ 3y~  
public final static int HEAP = 9; 8]&:'  
T8z?_ *k  
public static void sort(int[] data) { }Cu[x'J  
sort(data, IMPROVED_QUICK); WM ?a1j  
} UTyV6~  
private static String[] name={ hk4t #Km  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" {owuYVm  
}; ( ~5 M{Xh  
r)'vn[A  
private static Sort[] impl=new Sort[]{ |} b+$J  
new InsertSort(), \6&Ml]1  
new BubbleSort(), d6QrB"J`  
new SelectionSort(), 9m$;C'}Z  
new ShellSort(), <Pt?N2]A|  
new QuickSort(), Z)W8Of_  
new ImprovedQuickSort(), Blzvn19'h  
new MergeSort(), :L NE ?@  
new ImprovedMergeSort(), h:362&?]  
new HeapSort() xz"60xxY  
}; `2s@O>RV  
~h@@y5<4  
public static String toString(int algorithm){ $q@d.Z>;  
return name[algorithm-1]; 7amVnR1f  
} "g"a-{8  
,sAAV%" >  
public static void sort(int[] data, int algorithm) { @Uez2?  
impl[algorithm-1].sort(data); TsaQR2J@  
} 3MQZ)!6  
11yXI[  
public static interface Sort { 1W{N6+u  
public void sort(int[] data); El<*)  
} =9a2+v0  
V+ ("kz*  
public static void swap(int[] data, int i, int j) { !g]5y=  
int temp = data; t Y  
data = data[j]; XJ4f;U  
data[j] = temp; v<!S_7h  
} {g%N(2  
} BUBx}dbCM  
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:
10+5=?,请输入中文答案:十五