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
  • 5392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。 )LL.fPic  
插入排序: Va/}|& 9  
[C3wjYi  
package org.rut.util.algorithm.support; U9Lo0K  
tbB.n  
import org.rut.util.algorithm.SortUtil; YCBUc<)  
/** >qdRqy)DC  
* @author treeroot +p-S36K~,7  
* @since 2006-2-2 yg%T{hyzH  
* @version 1.0 (OG>=h8?  
*/ CelM~W$=u  
public class InsertSort implements SortUtil.Sort{ 5(DnE?}vo  
rD>q/,X=\  
/* (non-Javadoc) /b{Ufo3v  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) i;67< f}-  
*/ =I$:-[(  
public void sort(int[] data) { j2|UuWU  
int temp; Iy2AJ|d.  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); I^QB`%v5  
} %"3tGi:/  
} ++}#pl8e  
} LfsOGC  
fM<g++X  
} MENrP5AL  
zENo2#{_N  
冒泡排序: /j:-GJb*!u  
XE|"n  
package org.rut.util.algorithm.support; tTe:Oq  
k")3R}mX  
import org.rut.util.algorithm.SortUtil; )1&,khd/u  
SU4~x0  
/** AH ]L C6-  
* @author treeroot 8 =3$U+  
* @since 2006-2-2 -<5H8P-  
* @version 1.0 d`KW]HJw  
*/ ={nuz-3  
public class BubbleSort implements SortUtil.Sort{ -:V2Dsr6;  
HF%)ip+  
/* (non-Javadoc) 'L6+B1Op  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) PLWx'N-kqL  
*/ h='@Q_1Sb  
public void sort(int[] data) { <gSZ<T  
int temp; .Tc?9X~4  
for(int i=0;i for(int j=data.length-1;j>i;j--){ }}v28"\TA  
if(data[j] SortUtil.swap(data,j,j-1); g@S?5S.Av  
} cs)z!  
} pB79#4  
} oSoU9_W  
} /7b$C]@k  
3q1u9`4;  
} V7>{,  
(a8oI )~  
选择排序: YwF\  
{q BbzBG  
package org.rut.util.algorithm.support; o(5 ( ]bJ  
mvBUm-X  
import org.rut.util.algorithm.SortUtil; H{*R(S<I  
UyOoyyd.  
/** $@L}/MO  
* @author treeroot YRP$tz+ _  
* @since 2006-2-2 gx6$:j;   
* @version 1.0 ZSW`/}Dp;  
*/ xW'(]Z7_  
public class SelectionSort implements SortUtil.Sort { +tFl  
4";[Xr{pW  
/* E9S&UU,K  
* (non-Javadoc) [3hOc/]s  
* h+Tt+ Q\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f<( ysl1[  
*/ 4+r26S,T  
public void sort(int[] data) { J+8T Ie  
int temp; Gw Z(3  
for (int i = 0; i < data.length; i++) { qXQ7Jg9  
int lowIndex = i; 2o-Ie/"d\  
for (int j = data.length - 1; j > i; j--) { X6: c-  
if (data[j] < data[lowIndex]) { jiAN8t*P  
lowIndex = j; 3+r8yiY  
} Uzd\#edxJ  
} SN|:{Am  
SortUtil.swap(data,i,lowIndex); v"smmQZik  
} #k<j`0kiq  
} ,(CIcDJ2U_  
9p<ZSh  
} T=->~@5  
cXvq=Rb  
Shell排序: $v+t ~b  
9!oNyqQ  
package org.rut.util.algorithm.support; qQ UCK  
38eeRo  
import org.rut.util.algorithm.SortUtil; 421ol  
tsu Mt  
/** DU-&bm  
* @author treeroot \py \rI  
* @since 2006-2-2 fP:g}Z  
* @version 1.0 ) %&~CW+  
*/ gEU|Bx/!=  
public class ShellSort implements SortUtil.Sort{ sYb(g'W*'  
O9]+Jd4W  
/* (non-Javadoc) (lVHKg&U[  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) m339Y2%=  
*/ 9;u&,R  
public void sort(int[] data) { }e*OprF  
for(int i=data.length/2;i>2;i/=2){ S&YC"  
for(int j=0;j insertSort(data,j,i); <; Bv6.Z  
} ]\5?E }kd  
} B @8 ]!  
insertSort(data,0,1); (-U6woB6o  
} _}-Ed,.=  
!z]2+  
/** \4OX]{  
* @param data y6nPs6kR  
* @param j b$:<T7vei  
* @param i <)\  
*/ 7}e73  
private void insertSort(int[] data, int start, int inc) { UL.x*@o  
int temp; 3R sbi  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); WD7IF+v  
} qx~-(|s`H  
} $kef_*BQg  
} oMV<Yn_<  
Xn 1V1sr  
} <r'l5|er  
^xwnX=Np  
快速排序: usR: -1{  
k*3F7']8  
package org.rut.util.algorithm.support; ~SRK}5E  
09SLQVo  
import org.rut.util.algorithm.SortUtil; ``Wf%~  
:_FnQhzg  
/** Xo:!U=m/#  
* @author treeroot 0qj:v"~Q  
* @since 2006-2-2 #r}O =izi  
* @version 1.0 E9IU,P6a  
*/  bK|I  
public class QuickSort implements SortUtil.Sort{ r{T}pc>^  
Io81zA  
/* (non-Javadoc) M_wj>NXZ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) l$~3_3+  
*/ :mwJJIjUW  
public void sort(int[] data) { y7quKv7L}  
quickSort(data,0,data.length-1); *|T]('xwC  
} V9 dRn2- [  
private void quickSort(int[] data,int i,int j){ M;\iL?,  
int pivotIndex=(i+j)/2; qQu}4Ye>  
file://swap 0Y81B;/F  
SortUtil.swap(data,pivotIndex,j); }9GD'N?4  
.W#-Cl&n8  
int k=partition(data,i-1,j,data[j]); Oist>A$Z  
SortUtil.swap(data,k,j); S}Q/CT?au  
if((k-i)>1) quickSort(data,i,k-1); -<[MM2Y  
if((j-k)>1) quickSort(data,k+1,j); j<-#a^jb  
mu[:b  
} msyC."j0jU  
/** +y$%S4>0tp  
* @param data ;p !|E3o.  
* @param i 0'IV"eH2  
* @param j SCCBTpmf2B  
* @return  a9ko3L  
*/ ")t ^!x(v  
private int partition(int[] data, int l, int r,int pivot) { b V5{  
do{ 5*ip}wA  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); G>/Gw90E  
SortUtil.swap(data,l,r); -.>b7ui  
} Nm.H  
while(l SortUtil.swap(data,l,r); v\3:R,|'  
return l; arR9uxP  
} _R,VNk  
Pd<s#  
} &p)]Cl/`  
BB?vc( d  
改进后的快速排序: *ydkx\pT  
7<<-\7`  
package org.rut.util.algorithm.support; SM;*vkwz~  
i: 6`Rmz1.  
import org.rut.util.algorithm.SortUtil; ]ZD W+<  
`u z R!^X  
/** vU:FDkx*nn  
* @author treeroot '@$YX*[  
* @since 2006-2-2 0UJ% tPS  
* @version 1.0 G,#]`W@qhK  
*/ <QlpIgr  
public class ImprovedQuickSort implements SortUtil.Sort { }9k/Y/.  
llCBqWn  
private static int MAX_STACK_SIZE=4096; b'!t\m  
private static int THRESHOLD=10; PJq;OM|  
/* (non-Javadoc) yMU>vr  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A{[joo  
*/ Z`UwXp_s  
public void sort(int[] data) { |\?mX=a.y  
int[] stack=new int[MAX_STACK_SIZE]; s#%$aQ|Fp  
yJCqP=  
int top=-1; F3-<F_4.w  
int pivot; \(ygdZ{R  
int pivotIndex,l,r; S_E-H.d"  
0Jz5i4B  
stack[++top]=0; *Kpk1  
stack[++top]=data.length-1; KW* 2'C&  
{`FkiB` i  
while(top>0){ 0zQ^ 6@  
int j=stack[top--]; ne]P-50  
int i=stack[top--]; c>_tV3TDA  
>Mu I-^ 3  
pivotIndex=(i+j)/2; fgiOYvIS2m  
pivot=data[pivotIndex]; 5`TbM  
DqfWu*  
SortUtil.swap(data,pivotIndex,j); \3M<_73  
,buSU~c_Q  
file://partition S(B$[)(  
l=i-1; qXOWCYqs  
r=j; WrA!'I  
do{ uwQ~4   
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); PQl^jS  
SortUtil.swap(data,l,r); lO (MF  
} [~3[Tu( C  
while(l SortUtil.swap(data,l,r); b`%3>  
SortUtil.swap(data,l,j); !cLdoX  
OcA_m.  
if((l-i)>THRESHOLD){ |WiE`&?xP  
stack[++top]=i; hA6   
stack[++top]=l-1; z%)~s/2Rs  
} WH>=*\  
if((j-l)>THRESHOLD){ <G};`}$a  
stack[++top]=l+1; >@b]t,rrK  
stack[++top]=j; 9H~2 iW,Q;  
} jGg,)~)Y  
{iGy@?d)zt  
} aVg~/  
file://new InsertSort().sort(data); Dq [ f  
insertSort(data); 0}'xoYv f  
} XniPNU  
/** JPH! .@  
* @param data  Re=()M  
*/ 9J3@8h p  
private void insertSort(int[] data) { k? <.yr1  
int temp; !lVOZ %  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 'YKzs;y$  
} ?/M:  
} ;u+k! wn  
} x7<2K(  
.wU0F  
} * ~D|M  
|r U?  
归并排序: Z<wJ!|f  
$U_M|Xa  
package org.rut.util.algorithm.support; y% Q0* _  
AiP#wK;  
import org.rut.util.algorithm.SortUtil; ]u]BxMs  
Y3_C':r  
/** S/itK3  
* @author treeroot - w{`/  
* @since 2006-2-2 Bj=lUn`T:  
* @version 1.0 = 9Ow!(!@  
*/ i,H(6NL.  
public class MergeSort implements SortUtil.Sort{ i/C`]1R/  
}508wwv  
/* (non-Javadoc) *:5S*E&}V  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) K2XRKoG  
*/ :17Pc\:DS  
public void sort(int[] data) { L@5j? N?F  
int[] temp=new int[data.length]; =bBV A0y  
mergeSort(data,temp,0,data.length-1); NihUCj"  
} {\WRW}iO  
2;wp D2  
private void mergeSort(int[] data,int[] temp,int l,int r){ >1}@Q(n/}{  
int mid=(l+r)/2; o2 ;  
if(l==r) return ; )+ V)]dS@%  
mergeSort(data,temp,l,mid); &KYPi'C9!z  
mergeSort(data,temp,mid+1,r); (# c|San  
for(int i=l;i<=r;i++){ &G|^{!p/G  
temp=data; .E:3I!dH7  
} gW5yLb_Vz$  
int i1=l; u|mTF>L  
int i2=mid+1; zA>LrtyK(=  
for(int cur=l;cur<=r;cur++){ 2zV{I*  
if(i1==mid+1) :>|dE%/e$  
data[cur]=temp[i2++]; y+aKk6(_W  
else if(i2>r) [n2+`A  
data[cur]=temp[i1++]; nO+-o;DbC  
else if(temp[i1] data[cur]=temp[i1++]; |AQU\BUj  
else ` pYyr/  
data[cur]=temp[i2++]; 2il`'X  
} o"V+W  
} $a01">q&y  
/szwVA  
} A_\`Gj!s%  
68UfuC  
改进后的归并排序: 2Ij,OIcdBE  
Op'&c0l  
package org.rut.util.algorithm.support; :cxA  
'ti~TG  
import org.rut.util.algorithm.SortUtil; }`$s"Iv@  
_f1;Hhoa  
/** '5m4kDs  
* @author treeroot FN w0x6,~R  
* @since 2006-2-2 hh-a+] c0  
* @version 1.0 |@1M'  
*/ 5SMV3~*P  
public class ImprovedMergeSort implements SortUtil.Sort { YNB7`:  
j"s7P%  
private static final int THRESHOLD = 10; -N'wKT5  
A>ve|us$  
/* w:pPd;nz0Y  
* (non-Javadoc) 6U0BP  
* FVxORQI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) dBkM~"  
*/ iYf)FPET  
public void sort(int[] data) { p9E/#U8A_  
int[] temp=new int[data.length]; wVq9t|V  
mergeSort(data,temp,0,data.length-1); 8 :;]tt  
} DDq?4  
bt};Pn{3  
private void mergeSort(int[] data, int[] temp, int l, int r) { SsEpuEn  
int i, j, k; ICEyz| C  
int mid = (l + r) / 2; D$AvD7_  
if (l == r) RW<10:  
return; 4?fpk9c{2  
if ((mid - l) >= THRESHOLD) %g~&$oZmq  
mergeSort(data, temp, l, mid); sU+8'&vBp  
else z1^3~U$}  
insertSort(data, l, mid - l + 1); ([dwZ6$/J  
if ((r - mid) > THRESHOLD) >V>`}TIH  
mergeSort(data, temp, mid + 1, r); =axuLP))  
else t#VX#dJ  
insertSort(data, mid + 1, r - mid); 5WA:gygB&  
/9A6"Z  
for (i = l; i <= mid; i++) { 5\EnD, y  
temp = data; R,s}<N$  
} r1Hh @sxn  
for (j = 1; j <= r - mid; j++) { lWn}afI  
temp[r - j + 1] = data[j + mid]; +c8t~2tuN  
} P }^Y"zF2  
int a = temp[l]; XtQwLH+F  
int b = temp[r];  "D'rsEh  
for (i = l, j = r, k = l; k <= r; k++) { ~.4y* &  
if (a < b) { EOZ 6F-':  
data[k] = temp[i++]; ~Zn|(  
a = temp; AmZW=n2^  
} else { {;|pcx\L6~  
data[k] = temp[j--]; 3B='f"G  
b = temp[j]; ))dw[Xa  
} Fi'ZId  
} ilXKJJda  
} D~bx'Wr+  
,c-*/{3  
/** pss e^rFg  
* @param data P+Gz'  
* @param l 764eXh  
* @param i /1p5KVTKv  
*/ 6<9}>Wkf  
private void insertSort(int[] data, int start, int len) { <5"&]! .  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); @u`W(Ow  
} OFBEJacy  
} }.pqV X{ d  
} PhPe7^  
} cs7^#/3<  
2$MoKO x8$  
堆排序: Fe %Vp/  
vcCNxIzEG  
package org.rut.util.algorithm.support; B9Mp3[   
Y<jX[ET!  
import org.rut.util.algorithm.SortUtil; =''WA:,=h  
omGzyuPF  
/** Qv`: E   
* @author treeroot S?6 -I,]h  
* @since 2006-2-2 s)fahc(@E  
* @version 1.0 Hj(K*z  
*/ c|(J%@B)  
public class HeapSort implements SortUtil.Sort{ Caz5q|Oo  
d#XgO5eyO  
/* (non-Javadoc) <.Pt%Kg^BS  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $P#x>#+[A  
*/ IN@o9pUjV  
public void sort(int[] data) { h-|IZ}F7  
MaxHeap h=new MaxHeap(); v%c/eAF  
h.init(data); .vctuy&  
for(int i=0;i h.remove(); G'u[0>  
System.arraycopy(h.queue,1,data,0,data.length); mr/?w0(C  
} k6J&4?xZ  
" dGN0i  
private static class MaxHeap{ cWG%>.`5r  
mQ<4(qd)  
void init(int[] data){ )HC/J-  
this.queue=new int[data.length+1]; ll1N`ke  
for(int i=0;i queue[++size]=data; b !y  
fixUp(size); z5oJQPPi  
} \NMqlxp2  
} C7G,M  
G3`9'-2q@c  
private int size=0; .%)uCLZr$  
iqdU?&.;  
private int[] queue; hJ]Oa7r  
|/H?\]7  
public int get() { =4'V}p  
return queue[1]; 3!\h'5{  
} f^*Yqa  
,}]v7DD  
public void remove() { M]p-<R\  
SortUtil.swap(queue,1,size--); k7Qs#L  
fixDown(1); ZgG~xl\My  
} 9) ,|h  
file://fixdown {aq)Y>o5:T  
private void fixDown(int k) { ~c<8;,cjYR  
int j; S5u$I  
while ((j = k << 1) <= size) { cfilH"EK  
if (j < size %26amp;%26amp; queue[j] j++; :hs~;vn)  
if (queue[k]>queue[j]) file://不用交换 U]gUGD!5x  
break; 7M4J{}9  
SortUtil.swap(queue,j,k); 9PA<g3z  
k = j; akNqSZwj  
} r180vbN$  
} hSw=Oq82  
private void fixUp(int k) { Pzq^x]  
while (k > 1) { 9Q}g Vqn  
int j = k >> 1; I<CrEL<5}~  
if (queue[j]>queue[k]) qPD(D{,f$  
break; qbD 7\%  
SortUtil.swap(queue,j,k); EpNN!s=Q  
k = j; \/<VJB uV  
} 7I'C'.6iM  
} ~  z3J4s  
w&p(/y  
} 7 s{vou  
UO&$1rV  
} CEI"p2  
* 30K}&T  
SortUtil: (E)hEQ@8  
`7w-_o %  
package org.rut.util.algorithm; aVHIU3  
^~-YS-.J#,  
import org.rut.util.algorithm.support.BubbleSort; _~;%zFX  
import org.rut.util.algorithm.support.HeapSort; vm[*+&\2  
import org.rut.util.algorithm.support.ImprovedMergeSort; 7@>/O)>(AS  
import org.rut.util.algorithm.support.ImprovedQuickSort; ]b; m~|9  
import org.rut.util.algorithm.support.InsertSort; xx>h J!  
import org.rut.util.algorithm.support.MergeSort; C 'MR=/sd  
import org.rut.util.algorithm.support.QuickSort; !hZ: \&V  
import org.rut.util.algorithm.support.SelectionSort; \Z3K ~  
import org.rut.util.algorithm.support.ShellSort; d8vf kV B  
eK l; T  
/** 3m!tb)  
* @author treeroot 5v)bs\x6  
* @since 2006-2-2 o ?vGI=  
* @version 1.0 Q17dcgd  
*/ dt:$:,"   
public class SortUtil { a{r"$>0  
public final static int INSERT = 1; L?ht^ H  
public final static int BUBBLE = 2; ~`QoBZ.O&  
public final static int SELECTION = 3; <fG\J  
public final static int SHELL = 4; O 7 aLW  
public final static int QUICK = 5; V=*^C+6s  
public final static int IMPROVED_QUICK = 6; P'OvwA  
public final static int MERGE = 7; (1[59<cg]  
public final static int IMPROVED_MERGE = 8; 96<oX:#  
public final static int HEAP = 9; t!3N|`x  
!2.BLJE>  
public static void sort(int[] data) { U< G2tn(  
sort(data, IMPROVED_QUICK); D)ri_w!Q  
} U< Xdhgo?  
private static String[] name={ [Cv./hEQi  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" uO LShNo  
}; <C&|8@A0  
O7VEyQqf5  
private static Sort[] impl=new Sort[]{ F""9O6u  
new InsertSort(), |EX=Rj*  
new BubbleSort(), }q@#M8b  
new SelectionSort(), i,*m(C@F}  
new ShellSort(), 9;U?_   
new QuickSort(), t kj  
new ImprovedQuickSort(), H( i   
new MergeSort(), dREY m}1  
new ImprovedMergeSort(), 3r kcIVO  
new HeapSort() sd\p[MXX  
}; A_oZSUrR  
$xZ ~bE9  
public static String toString(int algorithm){ Cn3 _D  
return name[algorithm-1];  SW#/;|m  
} f; |fS~  
gx9Os2Z|3  
public static void sort(int[] data, int algorithm) { :}v-+eIQ  
impl[algorithm-1].sort(data); ;C$+8%P4  
} i>YQ<A1  
K#wA ;  
public static interface Sort { }psRgF  
public void sort(int[] data); e9KD mX_  
} YP_L~zZ  
G$i)ELs  
public static void swap(int[] data, int i, int j) { 950N\Y @u  
int temp = data; %|(c?`2|  
data = data[j]; p 4> ThpX  
data[j] = temp; 70c]|5  
} lJu^Bcrv  
} {s0%XG1$  
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
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八