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
  • 5297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。 f6m^pbQFl  
插入排序: bDr'W   
`xtN+y F  
package org.rut.util.algorithm.support; c`iSe$eS  
A1:Fe9q  
import org.rut.util.algorithm.SortUtil; p0@iGyd  
/** rf9RG!  
* @author treeroot #0mn_#-P)  
* @since 2006-2-2 *kDXx&7B$  
* @version 1.0 uZqo"  
*/ x$Lt?'  
public class InsertSort implements SortUtil.Sort{ ]$z~;\T  
<cl$?].RE!  
/* (non-Javadoc) ]AN)M>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ] $%{nj<  
*/ s#d>yx_b  
public void sort(int[] data) { E=LaPjEIj  
int temp; bT8BJY%+  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); HkQ2G}<  
} p}j{ <y  
} |5O%@  
} wi9fYfuv3R  
;B7>/q;g  
} TzIgEn~  
$mpfr#!&3o  
冒泡排序: Jb0]!*tV  
02SUyv(Mt  
package org.rut.util.algorithm.support; i4->XvC  
B[k"xs  
import org.rut.util.algorithm.SortUtil; D$j`+`  
T *$uc,  
/** %D&FnTa  
* @author treeroot /]YK:7*98  
* @since 2006-2-2 oVLz7Y[JE  
* @version 1.0 s_RYYaM  
*/ $+?6U  
public class BubbleSort implements SortUtil.Sort{ 0|HhA,u  
M14pg0Q  
/* (non-Javadoc) )of_"gZ$3A  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) MT0}MMr  
*/ ,x_g|J _Y  
public void sort(int[] data) { w| >Y&/IX  
int temp; (=p}b:Z  
for(int i=0;i for(int j=data.length-1;j>i;j--){ * yt/ Dj  
if(data[j] SortUtil.swap(data,j,j-1); I{M2nQi  
} H-I*;  
} N'^ 0:zK:  
} [V1gj9t=,  
} {(t (}-:Z  
f(9w FT  
} ,,@_r&f:  
+|o -lb  
选择排序: ysL8w"t  
[TNYPA> {  
package org.rut.util.algorithm.support; [t ^|l?  
/0(4wZe~?  
import org.rut.util.algorithm.SortUtil; XbHcd8N T  
Bw{W-&$o  
/** &qo'ge8p  
* @author treeroot EkJo.'0@  
* @since 2006-2-2 o]jo R3  
* @version 1.0 ~L?p/3m   
*/ :pNZQX  
public class SelectionSort implements SortUtil.Sort { 8^M5u>=t;  
?p$WqVN}  
/* \Ud2]^D=  
* (non-Javadoc) F.O2;M|x  
* 8fdOV&&D~i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2Y$==j  
*/ S:DB%V3  
public void sort(int[] data) { 0`OqD d  
int temp; ytJ |jgp'  
for (int i = 0; i < data.length; i++) { ==IL63  
int lowIndex = i; !vG._7lPp  
for (int j = data.length - 1; j > i; j--) { >.B+xn =  
if (data[j] < data[lowIndex]) { 1P6~IZVN  
lowIndex = j; YP#OI 6u  
} qHv W{0E  
} CMTy(Z8_)  
SortUtil.swap(data,i,lowIndex); |rNm_L2  
} L5U>`lx6$  
} HI:E&20y  
b"x:IDW qG  
} <01MXT-  
a z`5{hK  
Shell排序: 15SIZ:Q  
w$2-t  
package org.rut.util.algorithm.support; \2~.r/`1  
sz}Nal$AC  
import org.rut.util.algorithm.SortUtil; DNL TJrN  
z?V> ST  
/** 4N*^%  
* @author treeroot Rov0  
* @since 2006-2-2 +!w?g/dV  
* @version 1.0 #Xsby  
*/ W&rjJZY6  
public class ShellSort implements SortUtil.Sort{ {9P<G]Z  
bXtA4O  
/* (non-Javadoc) Xf#uK\f  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) j8N8|\n-  
*/ }LE.kd&  
public void sort(int[] data) { 7O"T `>  
for(int i=data.length/2;i>2;i/=2){ qo'pU/@  
for(int j=0;j insertSort(data,j,i); 0k3^+#J  
} +y-:(aP  
} kV-a'"W5  
insertSort(data,0,1); R$PiF1ffj  
} bv|v9_i  
CVu'uyy  
/** @ '<lD*W  
* @param data ULsz<Hj  
* @param j ~PS%^zxyn  
* @param i Oi7:J> [  
*/ q!Nwf XJM  
private void insertSort(int[] data, int start, int inc) { qf ]ax!bK  
int temp; FUMAvVQ  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); viKN:n! Ev  
} l1YyZ^Z  
} mz/KGZ5t  
} |n]^gTJt  
n) `4*d$`  
} 6s>PZh  
Qza[~6  
快速排序: 8B\,*JGY2  
3):7mE(  
package org.rut.util.algorithm.support; I8?egDkk  
6:QJ@j\  
import org.rut.util.algorithm.SortUtil; GY0<\-  
r?H {Y3 ,  
/** 23+>K  
* @author treeroot )v'3pTs2  
* @since 2006-2-2 DfqXw^BKD  
* @version 1.0 tjYe82  
*/ ~*G I<n  
public class QuickSort implements SortUtil.Sort{ +)ro EJ_  
Xa%Z0% {  
/* (non-Javadoc) hydn" 9;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -@AGQ+e  
*/ c[ =9Z;|  
public void sort(int[] data) { r`6XF  
quickSort(data,0,data.length-1); 8CMI\yk  
} QULrE+@  
private void quickSort(int[] data,int i,int j){ 4yjAi@ /2  
int pivotIndex=(i+j)/2; _3ZZ-=J:=*  
file://swap 'L=g(  
SortUtil.swap(data,pivotIndex,j); E-n!3RQ(w  
l1!i3m'x  
int k=partition(data,i-1,j,data[j]); 7dxY07 yu  
SortUtil.swap(data,k,j); Br-bUoua  
if((k-i)>1) quickSort(data,i,k-1); J]$%1Y  
if((j-k)>1) quickSort(data,k+1,j); {"s9A&  
Y$Fbi2A4  
} ]}C#"Xt  
/** ./.E=,j  
* @param data wxvt:= =  
* @param i x+%lNR  
* @param j ,ad~ 6.Z_)  
* @return 0wxQ,PI1'  
*/ "<bL-k*H)  
private int partition(int[] data, int l, int r,int pivot) { gTiDV{ Ip  
do{ Ho*S >Y  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); }|Cw]GW  
SortUtil.swap(data,l,r); awMm&8cIM  
} LvE|K&R|  
while(l SortUtil.swap(data,l,r); )]rGGNF*  
return l; KvC:(Vqj  
} %!LrC!6P4  
]uj H7T  
} #O=^%C 7p  
0p&:9|'z  
改进后的快速排序: <XGOcekG  
L"#Tas\5  
package org.rut.util.algorithm.support; *$uKg zv3  
yBq4~b~[  
import org.rut.util.algorithm.SortUtil; P0UMMn\-#  
<K|_M)/9  
/** | u36-  
* @author treeroot :|P"`j  
* @since 2006-2-2 3^ wJ4=^  
* @version 1.0 pHKj*Y  
*/ )Z"7^ i  
public class ImprovedQuickSort implements SortUtil.Sort { 9?l( }S`  
(#7pGGp*E  
private static int MAX_STACK_SIZE=4096; #_4L/LV  
private static int THRESHOLD=10; `7+?1 z  
/* (non-Javadoc) 2VMau.eQ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YIt:_][*  
*/ mn4j#-  
public void sort(int[] data) { mqwN<:  
int[] stack=new int[MAX_STACK_SIZE]; pLrNYo*d  
S\GG(#b!  
int top=-1; 'j>^L  
int pivot; 90teXxg=|  
int pivotIndex,l,r; NAHQ:$  
Xs*~ [k'  
stack[++top]=0; Mx0c # d.  
stack[++top]=data.length-1; 7ugmZO}lL  
Zo'lvOpyZ  
while(top>0){ *Cj]j-  
int j=stack[top--]; ?9 2+(s  
int i=stack[top--]; !X*L<)=nh  
rDm>Rm=  
pivotIndex=(i+j)/2; cb|`)"<HN  
pivot=data[pivotIndex]; K)@]vw/\  
.r[J} O"  
SortUtil.swap(data,pivotIndex,j);  LlnIn{C  
6R dfF$f  
file://partition ()3+! };  
l=i-1; T\. 8og  
r=j; E=HS'XKu[K  
do{ }MuXN<DDb  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); fJC)>doM  
SortUtil.swap(data,l,r); Mp"] =  
} 024*IoVZ  
while(l SortUtil.swap(data,l,r); c$@,*c 0n  
SortUtil.swap(data,l,j); 80l(,0`,  
1b* dC;<  
if((l-i)>THRESHOLD){ l<GRM1^kU  
stack[++top]=i; I\`:(V  
stack[++top]=l-1; B3)#Ou2  
} 5N`g  
if((j-l)>THRESHOLD){ DpI_`TF#$Z  
stack[++top]=l+1; F_\\n#bv  
stack[++top]=j; tgc&DT; E  
} 7s>d/F3*  
9`-ofwr'|  
} ]^ZC^z;H  
file://new InsertSort().sort(data); Z37Z  
insertSort(data); =@w};e#D  
} `[57U,v  
/** ;,@3bu>r  
* @param data ]-L/Of6F)|  
*/ B~yD4^  
private void insertSort(int[] data) { ]wdudvS@6r  
int temp; C'*1w  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); #q(BR{A>t  
} SS(jjpe&,  
} 75I* &Wl  
} {%b>/r  
umI#P,%[  
} u\s mQhQGE  
[sACPn$f  
归并排序: 2zArAch  
o NJ/AT  
package org.rut.util.algorithm.support; \`|,wLgH  
&hjrJ/'^  
import org.rut.util.algorithm.SortUtil; ~sMn/T*fv  
ft:/-$&H  
/** WNlWigwYl  
* @author treeroot ls 'QfJm  
* @since 2006-2-2 C @hnT<e  
* @version 1.0 6Q>:g"_  
*/ ;2#HM^Mu  
public class MergeSort implements SortUtil.Sort{ d=N5cCqq  
u&2uQ-T0  
/* (non-Javadoc) [C P V5\2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Hagj^8  
*/ ?8YHz  
public void sort(int[] data) { zSDiJ$Xk  
int[] temp=new int[data.length]; 89+m?H]K  
mergeSort(data,temp,0,data.length-1); 9FH=Jp  
} "2Js[uf  
]+d.X]   
private void mergeSort(int[] data,int[] temp,int l,int r){ /DZKz"N  
int mid=(l+r)/2; %C'!L]#  
if(l==r) return ; ctH`71Y  
mergeSort(data,temp,l,mid); )wSsxX7:  
mergeSort(data,temp,mid+1,r); >SSF:hI"J  
for(int i=l;i<=r;i++){ D#^v=U  
temp=data; Vk{0)W7  
} %0fj~s;  
int i1=l; dKZffDTZ  
int i2=mid+1; f^m8 4o'  
for(int cur=l;cur<=r;cur++){ VUagZ 7p  
if(i1==mid+1) Z+I[  
data[cur]=temp[i2++]; 'X@j  
else if(i2>r) PM o>J|^  
data[cur]=temp[i1++]; VEE:Z^U!  
else if(temp[i1] data[cur]=temp[i1++]; PyzW pf  
else AP/tBC eM  
data[cur]=temp[i2++]; wjKW 3  
} )5'S=av9  
} CZ|Y o  
&eK8v]|"W  
}  _U#ue  
?6tuo:gP  
改进后的归并排序: T"dWrtO  
,f} s!>j  
package org.rut.util.algorithm.support; fvN2]@:  
"1h|1'S50?  
import org.rut.util.algorithm.SortUtil; |]\qI  
0#XZ_(@%  
/** n8R{LjJ2@  
* @author treeroot ?}B_'NZ%  
* @since 2006-2-2 :+!hR4Z~\;  
* @version 1.0 CO 5?UgA  
*/ \T<?=A  
public class ImprovedMergeSort implements SortUtil.Sort { jc)D*Cf  
pA1Tod  
private static final int THRESHOLD = 10; t4F1[P  
B>|@XfPM  
/* ]#+fQR$!  
* (non-Javadoc) 0dXZd2oK@  
* xqM R[W\x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A3M)yWq  
*/ 0m51nw~B  
public void sort(int[] data) { YujhpJ<  
int[] temp=new int[data.length]; UO>p-M  
mergeSort(data,temp,0,data.length-1); 2Hy$SSH  
} ~(4cnD)BO  
Q 4_j`q  
private void mergeSort(int[] data, int[] temp, int l, int r) { ML Id3#Q  
int i, j, k; 0u)]1  
int mid = (l + r) / 2;  5Lm ?  
if (l == r) >|uZIcs 6  
return; m|=/|Hm  
if ((mid - l) >= THRESHOLD) a?\ Au  
mergeSort(data, temp, l, mid); V4ayewVX  
else Gi Zy C  
insertSort(data, l, mid - l + 1); 70*Y4'u }A  
if ((r - mid) > THRESHOLD) (MwB% g  
mergeSort(data, temp, mid + 1, r); }$81FSKh  
else )P\ec  
insertSort(data, mid + 1, r - mid); GP`_R  
q3 1swP  
for (i = l; i <= mid; i++) { .* V ZY  
temp = data; 5 E DGl  
} *.W ![%Be  
for (j = 1; j <= r - mid; j++) { sq&$   
temp[r - j + 1] = data[j + mid]; 7lf* vqG  
} b~%(5r.  
int a = temp[l];  8(5}Jo+  
int b = temp[r]; ]?b#~  
for (i = l, j = r, k = l; k <= r; k++) { X;ijCZb3b  
if (a < b) { 5w iU4-{  
data[k] = temp[i++]; <Cn-MOoM  
a = temp; NfDg=[FN[  
} else { p>65(&N,  
data[k] = temp[j--]; >k kuw?O@  
b = temp[j]; RzFv``g  
} ~qco -b  
} Ol D]*=.cO  
} J?u@' "u  
I:bi8D6  
/** ] 6M- s  
* @param data kCLz@9>FQ  
* @param l XQHvs{P o  
* @param i A;q}SO%b  
*/ |brl<*:  
private void insertSort(int[] data, int start, int len) { tE=P9 \4  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); rjx6Ad/\  
} 1i#M(u_  
} m7g; psg  
} |HhUU1!  
} h6 8sQd  
U]d{hY."  
堆排序: G W|~sE +  
NFU 5+X-c  
package org.rut.util.algorithm.support; LIirOf~e;!  
qmv%N  
import org.rut.util.algorithm.SortUtil; 9.D'!  
YYZE-{ %  
/** cZ%weQa#N)  
* @author treeroot =<n+AqJ%  
* @since 2006-2-2 *siS4RX2  
* @version 1.0 r;I 3N+  
*/ QJ-6aB  
public class HeapSort implements SortUtil.Sort{ -HS(<V=a?k  
Qc Ia%lf  
/* (non-Javadoc) K"#np!Y)  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V!a\:%#^Y  
*/ )TBBYCL3  
public void sort(int[] data) { O: :X$O7  
MaxHeap h=new MaxHeap(); e>z3 \4  
h.init(data); pDrM8)r  
for(int i=0;i h.remove(); \h,S1KmIBD  
System.arraycopy(h.queue,1,data,0,data.length); E@Q+[~H}  
} &0*j nb  
x.xfMM2n  
private static class MaxHeap{ D CcM~  
'8}*erAg  
void init(int[] data){ ` SZ^~O  
this.queue=new int[data.length+1]; : H0+}=  
for(int i=0;i queue[++size]=data; 3?.3Z!H/  
fixUp(size); ' DCrSa>  
} `N]!-=o  
} u-f_,],p  
al(t-3`<  
private int size=0; E[)`+:G]  
~OAST  
private int[] queue; tTX2>8Gmr  
:,]V 03  
public int get() { aS-rRL|\L  
return queue[1]; A8dIL5  
} R'uM7,7  
Wg3y y8vIW  
public void remove() { `Q' 0l},  
SortUtil.swap(queue,1,size--); 0 ua.aL'  
fixDown(1); ggzg, ~V  
} hwSn?bkw  
file://fixdown )apqL{u:=  
private void fixDown(int k) { -;Y*;xe  
int j; b(wW;C'#0p  
while ((j = k << 1) <= size) { 9EIHcUXe  
if (j < size %26amp;%26amp; queue[j] j++; ,mx>)} l95  
if (queue[k]>queue[j]) file://不用交换 )k.;.7dXe  
break; ))K3pKyb  
SortUtil.swap(queue,j,k); ^uD r  
k = j; /608P:U  
} nNSq6 Cj  
} g0: mm,t\  
private void fixUp(int k) { 2bPrND\P=  
while (k > 1) { Ugp[Ugr  
int j = k >> 1; #tRLvOR:  
if (queue[j]>queue[k]) t5\~Z}G8  
break; <w}YD @(f  
SortUtil.swap(queue,j,k); MRMsw NQ  
k = j; J'G 6Z7  
} GKTrf\"c  
} b*+Od8r  
pd?3_yU  
} BA4qQCS;5  
}S\\"SBC  
} }Dc0 Y  
sk5h_[tK  
SortUtil: m-xSF]q=<  
PO%Z.ol9  
package org.rut.util.algorithm; ,edX;`#  
)hGRq'WA=  
import org.rut.util.algorithm.support.BubbleSort; :aS8%m  
import org.rut.util.algorithm.support.HeapSort; |JC/A;ZH  
import org.rut.util.algorithm.support.ImprovedMergeSort; w+)MrB-}  
import org.rut.util.algorithm.support.ImprovedQuickSort; Rq-BsMX!A  
import org.rut.util.algorithm.support.InsertSort; 9%^q?S/Rv  
import org.rut.util.algorithm.support.MergeSort; (C dx7v2Nh  
import org.rut.util.algorithm.support.QuickSort; $b,o3eC  
import org.rut.util.algorithm.support.SelectionSort; dMK| l   
import org.rut.util.algorithm.support.ShellSort; JS]6jUB<B  
oKLL~X>!U  
/** }1 = V`N(  
* @author treeroot oJE~dY$Q  
* @since 2006-2-2 .bE+dA6:v  
* @version 1.0 ~Gx"gK0  
*/ b_+dNoB  
public class SortUtil { 9*pH[vH  
public final static int INSERT = 1; 3J%(2}{y  
public final static int BUBBLE = 2; 4E/Q+^?  
public final static int SELECTION = 3; aKkL0 D  
public final static int SHELL = 4; JKN0:/t7 Q  
public final static int QUICK = 5; klmRU@D  
public final static int IMPROVED_QUICK = 6; =~}\g;K1Q  
public final static int MERGE = 7; KSe `G;{  
public final static int IMPROVED_MERGE = 8; A\nL(Nd  
public final static int HEAP = 9; $$ma1.t"  
ca%s$' d  
public static void sort(int[] data) { 9y"R,  
sort(data, IMPROVED_QUICK); yAz`n[  
} z UN&L7D  
private static String[] name={ 8,d<&3D  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" .-2i9Bh6  
}; dF$a52LS  
cy T,tN  
private static Sort[] impl=new Sort[]{ Eh/B[u7T[  
new InsertSort(), kcGs2Y_*&  
new BubbleSort(), )!M %clm.  
new SelectionSort(), \ <b-I  
new ShellSort(), }i0(^"SoXZ  
new QuickSort(), pxy=edd  
new ImprovedQuickSort(), JG\T2/b  
new MergeSort(), "|ZC2Zu<  
new ImprovedMergeSort(), {=};<;_F  
new HeapSort() Qk2^p^ T6  
}; +ExXhT  
N.R,[K  
public static String toString(int algorithm){ ?"-%>y@w  
return name[algorithm-1]; ElLDSo@WvR  
} -]HPDN,OB  
*-0tj~)>  
public static void sort(int[] data, int algorithm) { H <7r  
impl[algorithm-1].sort(data); o,}`4_N||  
} ,v(K |P@  
r1dP9MT\8  
public static interface Sort { pD;'uEFBQ  
public void sort(int[] data); AT*J '37  
} 7 L2$(d4  
|&!04~s;E  
public static void swap(int[] data, int i, int j) { 0*G =~:  
int temp = data; *q**,_?;  
data = data[j];  |e49F  
data[j] = temp; u By[x 0  
} \[u7y. b  
} cXP*?N4C f  
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