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
  • 5975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。 \E(^<Af  
插入排序: X;bHlA-g  
hv0bs8h  
package org.rut.util.algorithm.support; dzQs7D}  
x{O) n  
import org.rut.util.algorithm.SortUtil; ]4ib^R~Z  
/** 5^ck$af  
* @author treeroot H@xHkqan  
* @since 2006-2-2 #My14u  
* @version 1.0 >^6|^rc  
*/ l|81_BC"  
public class InsertSort implements SortUtil.Sort{ 5,\-;  
m#Ydq(0+  
/* (non-Javadoc) @cr/&  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) O llS  
*/ mv,5Q6!  
public void sort(int[] data) { |*/-~5"  
int temp; C547})  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); t zShds  
} :5sjF:@  
} Q7.jSL6  
} 2YDD`:R  
^Gi7th,  
} Cnr=1E=  
vM'!WVs  
冒泡排序: t`1M}}.  
#iKPp0`K*  
package org.rut.util.algorithm.support; BOOb{kcg  
(|\%)v H-  
import org.rut.util.algorithm.SortUtil; C$0rl74Wi  
0q4P hxR`e  
/** 0q28Ulv9  
* @author treeroot *sQ.y {  
* @since 2006-2-2 &MZ{B/;;H  
* @version 1.0 bf=!\L$  
*/ Y\Z6u)  
public class BubbleSort implements SortUtil.Sort{ U!{~L$S  
.-'_At4g  
/* (non-Javadoc) w`DcnQK'  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -%Rw2@vU  
*/ KPVu-{_Fi  
public void sort(int[] data) { 2"T b><^"  
int temp; fH@cC`  
for(int i=0;i for(int j=data.length-1;j>i;j--){ IL`LI J:O  
if(data[j] SortUtil.swap(data,j,j-1); /lC,5y  
} v%r/PHw  
} O>N/6Z  
} 7}I';>QH  
} s#'Vasu  
8BrC@L2E0  
} Egz6rRCvg  
.]H/u "d  
选择排序: %+ nM4)h  
M]|]b-#  
package org.rut.util.algorithm.support; lVuBo&  
b<!' WpY-  
import org.rut.util.algorithm.SortUtil; a@Vk(3Rx_  
a ~YrQI-@  
/** /!JxiGn  
* @author treeroot .sc80i4  
* @since 2006-2-2 F Uz1P  
* @version 1.0 d~MY z6"  
*/ |"PS e~ u  
public class SelectionSort implements SortUtil.Sort { GSs?!BIC  
q:nUn?zB  
/* 3ZC@q #R A  
* (non-Javadoc) s2( 7z9jR  
* ALn_ifNh  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !rs }83w!  
*/ q %j8Js  
public void sort(int[] data) { {Q[ G/=mx  
int temp; 9B![l=Gh  
for (int i = 0; i < data.length; i++) { ZeY|JH1  
int lowIndex = i; }.(DQwC}1k  
for (int j = data.length - 1; j > i; j--) { z;?ztpa@  
if (data[j] < data[lowIndex]) { Ml9m#c  
lowIndex = j; kL8 E#  
} q{Gh5zg5O  
} ju5o).!bg  
SortUtil.swap(data,i,lowIndex); EXF]y}n  
} _xH<R  
} l-cBN^^  
p Hx$  
} 3-E-\5I  
Ie K+  
Shell排序: @{U UB=}9  
Tay$::V  
package org.rut.util.algorithm.support; AOkG.u-k  
TV0sxod6  
import org.rut.util.algorithm.SortUtil; JhjH_)  
!Pz#czo  
/** FGPqF;  
* @author treeroot ps?su`  
* @since 2006-2-2 $IS!GS&:  
* @version 1.0 C~ A`h=A<  
*/ ?hAO-*);  
public class ShellSort implements SortUtil.Sort{ #'},/Lm@  
qO38vY){  
/* (non-Javadoc) lxCAZa\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) FaWDAL=Vhk  
*/ 4s~X  
public void sort(int[] data) { dl3;A_ 2  
for(int i=data.length/2;i>2;i/=2){ +*xc4  
for(int j=0;j insertSort(data,j,i); r`"T{o\e   
}  j'Jb+@W?  
} J+Fev.9>  
insertSort(data,0,1); gG@4MXq.  
} ?w!8;xS8  
5~Ek_B  
/** kN3 <l7  
* @param data 0'THL%lK  
* @param j 4!OGNr$V@  
* @param i #_x5-?3  
*/ Xn?.Od(  
private void insertSort(int[] data, int start, int inc) { `1n^~  
int temp; Qd\='*:!  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); D"-Wo}"8O'  
} D5oYcGc  
} 9BpxbU+L;  
} >Ut: -}CS  
SOX7  
} 6]Q#4  
94et ]u%7  
快速排序: <"6\\#}VG  
[3qH? 2&  
package org.rut.util.algorithm.support; (]\p'%A)  
sV-P R]  
import org.rut.util.algorithm.SortUtil; 63%V_B|  
5-ED\-  
/** {tl{ j1d |  
* @author treeroot ]cv|dc=  
* @since 2006-2-2 B6;>V`!  
* @version 1.0 j24DL+  
*/ LLT6*up$  
public class QuickSort implements SortUtil.Sort{ 9_d# F'#F  
U,p'<rmS  
/* (non-Javadoc) < qab\M0W  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ]P#W\LZp  
*/ :!Dm,PP%  
public void sort(int[] data) { Y3~z#<  
quickSort(data,0,data.length-1); K?[Vz[-Fc  
} i$p2am8f  
private void quickSort(int[] data,int i,int j){ j1qU 4#Y  
int pivotIndex=(i+j)/2; &zB>  
file://swap ja~Dp5  
SortUtil.swap(data,pivotIndex,j); ! [1aP,  
R&6@*Nn  
int k=partition(data,i-1,j,data[j]); +6l#hO7h  
SortUtil.swap(data,k,j); P_0[spmFU  
if((k-i)>1) quickSort(data,i,k-1); =H8FV09x}  
if((j-k)>1) quickSort(data,k+1,j); 1fsNQ!vQP  
=n ,1*  
} !W8=\:D[  
/** DZ\ '7%c  
* @param data wu eDedz\  
* @param i n{<}<SVY  
* @param j 5,oLl {S'  
* @return B|"/bQ  
*/ Ipq0 1 +  
private int partition(int[] data, int l, int r,int pivot) { ) 3"!Q+  
do{ X<.l(9$  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); $0K@= 7ms  
SortUtil.swap(data,l,r); %XeN_ V  
} <uS/8MP{  
while(l SortUtil.swap(data,l,r); 3Mm_xYDud  
return l; 0SWqC@AR%  
} W|Sab$h  
Iox)-  
} b/qK/O8J  
vdvnwzp!l  
改进后的快速排序: Kr'?h'F  
l1lYb;C  
package org.rut.util.algorithm.support; ; U7P{e05  
i.7_i78\"  
import org.rut.util.algorithm.SortUtil; D@9 +yu=S  
h%$^s0w  
/** 4U}J?EB?K  
* @author treeroot GTTEg{  
* @since 2006-2-2 ;` Xm?N  
* @version 1.0 l,]%D  
*/ ?Y -;781  
public class ImprovedQuickSort implements SortUtil.Sort { T30fp  
d>mZY66P  
private static int MAX_STACK_SIZE=4096; =bja\r{  
private static int THRESHOLD=10; ggrYf*  
/* (non-Javadoc) "OYD9Q''  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |>xuH#Q  
*/ 41d+z>a]  
public void sort(int[] data) { <z2.A/L  
int[] stack=new int[MAX_STACK_SIZE]; 6'N_bNW  
gCPH>8JwS0  
int top=-1; 9O-~Ws ;  
int pivot; M&hNkJK*G  
int pivotIndex,l,r; 'R'hRMD9o  
d7G@Z|R3p  
stack[++top]=0; 0fBwy/:  
stack[++top]=data.length-1; SPdEO3  
hp/pm6  
while(top>0){ ogQfzk  
int j=stack[top--]; Z}0xK6  
int i=stack[top--]; u0arJU_.)  
]i6* $qgma  
pivotIndex=(i+j)/2; /bo=,%wJ[  
pivot=data[pivotIndex]; b\H&E{Gn|x  
Yb<:1?76L  
SortUtil.swap(data,pivotIndex,j); { V(~  
"5k 6FV  
file://partition o938!jML_  
l=i-1; \WTKw x  
r=j; 5NN;Fw+  
do{ (!5Pl`:j"  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); \/j,  
SortUtil.swap(data,l,r); C{^I}p  
} R!"|~OO  
while(l SortUtil.swap(data,l,r); ,9jk<)m]L  
SortUtil.swap(data,l,j); p&Qm[!  
`5h^!="  
if((l-i)>THRESHOLD){ ZAy/u@qt  
stack[++top]=i; \db=]L=|  
stack[++top]=l-1; %5zIh[!1$  
} @w.DN)GPo  
if((j-l)>THRESHOLD){ Q <D_QJ  
stack[++top]=l+1; 56c[$ q  
stack[++top]=j; 5vR])T/S0  
} +:ms`Sr>  
w.J$(o(/  
} gy,)% {,G  
file://new InsertSort().sort(data); 'Z.C&6_  
insertSort(data); Zqe$S +u  
} ?yj g\S?L  
/** !LpjTMYs  
* @param data H.>EO&#|p  
*/ vxk0@k_  
private void insertSort(int[] data) { # }}6JM  
int temp; r^msJ|k8[  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); H c>yZ:c;  
} @|t]9  
} GXD<X_[  
} sUc[!S:/  
R\7r!38  
} ^{=UKf{  
yF6AI@y  
归并排序: |XG&[TI- "  
2 yANf  
package org.rut.util.algorithm.support; :/5G Hfyj  
?0KIM* .  
import org.rut.util.algorithm.SortUtil; 6la'\l#  
XgnNYy6W  
/** LprGsqr:  
* @author treeroot 3w |5%`  
* @since 2006-2-2 Iq,h}7C8'  
* @version 1.0 Vq-Kl[-|  
*/ =X5w=(&  
public class MergeSort implements SortUtil.Sort{ >m;nt}f'+  
(G./P@/[  
/* (non-Javadoc) 6S{F4v2/0  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A_E2v{*n  
*/ FCwE/ 2,  
public void sort(int[] data) { Xr8fmJtg'  
int[] temp=new int[data.length]; 3J 5,V  
mergeSort(data,temp,0,data.length-1); T*#M'H7LSQ  
} 0nD?X+u  
D4hT Hh  
private void mergeSort(int[] data,int[] temp,int l,int r){ U*yOe*>  
int mid=(l+r)/2; QP50.P5g  
if(l==r) return ; *JFkqbf  
mergeSort(data,temp,l,mid); B-KMlHe  
mergeSort(data,temp,mid+1,r); JM/\n 4ea:  
for(int i=l;i<=r;i++){ &0bq3JGW  
temp=data; "HqmS  
} P* &0HbJ  
int i1=l; }vY^e OK.  
int i2=mid+1; ,\&r\!=  
for(int cur=l;cur<=r;cur++){ z3L=K9)  
if(i1==mid+1) S~fP$L5  
data[cur]=temp[i2++]; !Z\Gv1  
else if(i2>r) 3`{ vx  
data[cur]=temp[i1++]; J| wk})?  
else if(temp[i1] data[cur]=temp[i1++]; FF^h(Ea  
else y*sVimx  
data[cur]=temp[i2++]; DOFW"SpE  
} i={4rZOD^  
} 9a]o?>`E  
,aS+RJNM  
} 1c]{rO=taN  
[$d]U.  
改进后的归并排序: DQ/rx`BG  
u$5.GmKm  
package org.rut.util.algorithm.support; 8Ara^Xh}q  
p8-$MF]] 6  
import org.rut.util.algorithm.SortUtil; .L%pWRxA[  
,38M6yD  
/** 3$P  
* @author treeroot acUyz2x  
* @since 2006-2-2 "m6G;cv  
* @version 1.0 +IbV  
*/ 4B[pQlg  
public class ImprovedMergeSort implements SortUtil.Sort { +eH`mI0f  
Ue Z(@6_:  
private static final int THRESHOLD = 10; }dMX1e1h8  
Ho*B<#&(A|  
/* -Q<OSa='  
* (non-Javadoc) -!5l4  
*  HRbv%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <<gW`KF   
*/ [hot,\+f  
public void sort(int[] data) { V"K.s2U^  
int[] temp=new int[data.length]; `DSFaBj,  
mergeSort(data,temp,0,data.length-1); |unvDXx-  
} ,/V~T<FI  
Uea2WJpX  
private void mergeSort(int[] data, int[] temp, int l, int r) { 8;<aco/62  
int i, j, k; 4:O.x#p  
int mid = (l + r) / 2; 1GkoE  
if (l == r) ' CJ_&HR  
return; Uy|!f]"?  
if ((mid - l) >= THRESHOLD) $'d,X@}8  
mergeSort(data, temp, l, mid); yk4py0xVl  
else ac@\\2srV  
insertSort(data, l, mid - l + 1); H l(W'>*oL  
if ((r - mid) > THRESHOLD) *w ^!\  
mergeSort(data, temp, mid + 1, r); Tyaqa0  
else @m%B>X28F  
insertSort(data, mid + 1, r - mid); !UP B4I  
WnOYU9 ;%  
for (i = l; i <= mid; i++) { wi.E$R ckD  
temp = data; jjEu  
} VFnxj52<  
for (j = 1; j <= r - mid; j++) { Oi~Dio_?  
temp[r - j + 1] = data[j + mid]; G[>CBh5  
} (yuOY/~k/  
int a = temp[l]; P<[) qq@;  
int b = temp[r]; @~7au9.V=X  
for (i = l, j = r, k = l; k <= r; k++) { =2rdbq6R  
if (a < b) { @Ss W  
data[k] = temp[i++]; v;?W|kJ.u  
a = temp; uhaHY`w  
} else { pO N#r  
data[k] = temp[j--]; -%>Tjo@B n  
b = temp[j]; qSD`S1'2;  
} ? ][/hL@[  
} 8 ks\-38n1  
} n[i:$! ,  
[GK## z'5  
/** ,d.5K*?aI  
* @param data `{yI| Wf  
* @param l {`)o xzR  
* @param i m8b-\^eP7  
*/ &jg>X+;  
private void insertSort(int[] data, int start, int len) { n++ak\  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); Unt]=S3u  
} fo>_*6i74  
} @J^ Oy 3z  
} &IDT[J  
} 9Ou}8a?m"  
-cn`D2RP  
堆排序: {H9g&pfv  
xi ,fm  
package org.rut.util.algorithm.support; 5BLBcw\;  
?l @=}WN  
import org.rut.util.algorithm.SortUtil; f` -vnh^+  
e iH&<AH  
/** ' < >Q20  
* @author treeroot I'n}6D.M  
* @since 2006-2-2 U_Mag(^-  
* @version 1.0 -<T> paE9  
*/ +Qzl-eN/+  
public class HeapSort implements SortUtil.Sort{ } 21!b :a  
cL#zE  
/* (non-Javadoc) bng/v  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /=#~8  
*/ &FZ~n?;hQ  
public void sort(int[] data) { ) R5[a O  
MaxHeap h=new MaxHeap(); &K=) YpT  
h.init(data); |VyN>&r~6  
for(int i=0;i h.remove(); B'vIL'  
System.arraycopy(h.queue,1,data,0,data.length); 1Zo3K<*J  
} 5OFB[  
D^];6\=.i  
private static class MaxHeap{ D6yE/QeK4  
:y{@=E=XSC  
void init(int[] data){ CL(D&8v8~  
this.queue=new int[data.length+1]; ||7x51-yj  
for(int i=0;i queue[++size]=data; mL;oR4{  
fixUp(size); ,]9p&xu  
} 4/S3hH  
} 7g oRj  
6 Rg>h  
private int size=0; .K#' Fec  
2Mw`  
private int[] queue; fp3`O9+em  
JV !F<  
public int get() { EQHCw<e  
return queue[1]; G-vkkNj%e  
} +^rt48${ y  
G/(tgQ  
public void remove() { wI F'|"  
SortUtil.swap(queue,1,size--); n7n-uc  
fixDown(1); Wn2J]BH  
} jEP'jib%  
file://fixdown =6fJUy^M\  
private void fixDown(int k) { H:z<]Rc  
int j; UhU+vy6)/  
while ((j = k << 1) <= size) { -"2%+S{  
if (j < size %26amp;%26amp; queue[j] j++; a`C2:Z23(#  
if (queue[k]>queue[j]) file://不用交换 c,G[Rk  
break; VIod6Vk  
SortUtil.swap(queue,j,k); K[9P{0hA  
k = j; {p(6bsn_#]  
} NVf_#p"h  
} c47.,oTo  
private void fixUp(int k) { CX5>/  
while (k > 1) { A*]sN8  
int j = k >> 1; BGu<1$ G  
if (queue[j]>queue[k]) J~ z00p`E  
break; wo86C[  
SortUtil.swap(queue,j,k); W<~u0AyO 3  
k = j; bK!uR&i^l  
} 2,h]Y=.s  
} u+pZ<Bb  
kidv^`.H$w  
} b0N7[M1Xl  
99~-TiU  
} bl|)/)6o  
2jP(D%n  
SortUtil: IG:CWPU  
qUQP.4Z95  
package org.rut.util.algorithm; '|&?$g(\h  
r|953e  
import org.rut.util.algorithm.support.BubbleSort;  SmAF+d  
import org.rut.util.algorithm.support.HeapSort; 2aUE<@RU[  
import org.rut.util.algorithm.support.ImprovedMergeSort; dA(+02U/.  
import org.rut.util.algorithm.support.ImprovedQuickSort; ,LU|WXRB  
import org.rut.util.algorithm.support.InsertSort; k/Ao?R=@gI  
import org.rut.util.algorithm.support.MergeSort; Y5mk*Q#q  
import org.rut.util.algorithm.support.QuickSort; WBD"d<>'  
import org.rut.util.algorithm.support.SelectionSort; >IZ$ .-  
import org.rut.util.algorithm.support.ShellSort; `n`HwDo;i  
,!^;<UR:  
/** -e+im(2D=  
* @author treeroot {]7lh#M  
* @since 2006-2-2 7;sF0oB5e  
* @version 1.0 ^|cax| >  
*/ EM'#'fBZ>Y  
public class SortUtil { ;T>.  
public final static int INSERT = 1; `2G%&R,k"D  
public final static int BUBBLE = 2; kNrd=s,-]D  
public final static int SELECTION = 3; ng[LSB*57Y  
public final static int SHELL = 4; |1+ mHp  
public final static int QUICK = 5; &w^:nVgl  
public final static int IMPROVED_QUICK = 6; #<-%%  
public final static int MERGE = 7; *Oh]I|?  
public final static int IMPROVED_MERGE = 8; ;,@Fz  
public final static int HEAP = 9; YJZ`Clp?  
_J_QB]t  
public static void sort(int[] data) { L^ U.h  
sort(data, IMPROVED_QUICK); W)odaab7  
} u&o<>d;)  
private static String[] name={ bI)%g  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" lygv#s-T  
}; q9$K.=_5  
(^)(#CxO  
private static Sort[] impl=new Sort[]{ };>~P%u32  
new InsertSort(), 'W p~8}i@  
new BubbleSort(), mbIHzzW>  
new SelectionSort(), (+bt{Ma  
new ShellSort(), %^;rYn3  
new QuickSort(), *adwCiB  
new ImprovedQuickSort(), 9%?a\#C  
new MergeSort(), ,Q+.kAh !G  
new ImprovedMergeSort(), s`dUie}y<  
new HeapSort() l+^4y_  
}; Okd7ua-f  
*Ud P1?Y  
public static String toString(int algorithm){ p2wDk^$  
return name[algorithm-1]; )JR&  
} =$< .:b  
}I~)o!N%7  
public static void sort(int[] data, int algorithm) { Cuom_+wV&  
impl[algorithm-1].sort(data); $69d9g8-(!  
} $< .wQ8:Q  
D+4$l+\u  
public static interface Sort { G,@ Jo[e  
public void sort(int[] data); /+?eSgM/  
} kclZ+E  
Y\9zjewc  
public static void swap(int[] data, int i, int j) { ?Pt*4NaT;  
int temp = data; (ZD~Q_O-  
data = data[j]; %/%TR@/  
data[j] = temp; `_pVwa<@w  
} ]/?$DNjCc  
} 2-@z-XKn  
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