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
  • 6412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。 %,V YiW0  
插入排序: lxb zHlX  
I9 64  
package org.rut.util.algorithm.support; fg*@<'  
OI/@3"L{  
import org.rut.util.algorithm.SortUtil; 2YBIWR8z  
/** '\7G@g?UZ  
* @author treeroot tY/vL^mi  
* @since 2006-2-2 rpV1y$n<F  
* @version 1.0 ?u$u?j|N  
*/ L'A)6^d@S  
public class InsertSort implements SortUtil.Sort{ Y "jE'  
URTzX 2'[  
/* (non-Javadoc)  HEF?mD3h  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^ 4>k%d  
*/ -K %5(Eg  
public void sort(int[] data) { \OwpD,'  
int temp; v/Pw9j!r;m  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); <PD?f/4 /  
} WI[:-cv  
} 2KJ1V+g@a6  
} `N8 7 h"  
&X>7n~@0  
} 5f7zk  
a:Q[gF8>  
冒泡排序: `lpz-"EEV  
\=2m7v#E  
package org.rut.util.algorithm.support; \Sy7 "a  
0D&>Gyc*0  
import org.rut.util.algorithm.SortUtil; )}lRd#V  
^))RM_ic  
/** p<GR SJIk=  
* @author treeroot v ! hY  
* @since 2006-2-2 zqySm) o]  
* @version 1.0 F2I 5q C/  
*/ _ -..~K.|  
public class BubbleSort implements SortUtil.Sort{ 9";sMB}W*  
-_A$DM!^=w  
/* (non-Javadoc) \Ad7 Gi~  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) t%VDRZo7  
*/ ]`o!1(GA  
public void sort(int[] data) { > 0>  
int temp; Qd`T5[b\  
for(int i=0;i for(int j=data.length-1;j>i;j--){ d j5hv~  
if(data[j] SortUtil.swap(data,j,j-1); RrV>r<Z"Q  
} 'S4)?Z  
} e{w>%)rcP  
} :QQlI  
} Wr~yK? : ]  
i775:j~zx0  
} Ub$n |xn  
,J =P,](  
选择排序: YV'pVO'_+  
_S?qDG{E|  
package org.rut.util.algorithm.support; I[Ic$ta  
.K8w8X/3  
import org.rut.util.algorithm.SortUtil; Sb&lhgW]c  
) ]6h y9<  
/** ).412I  
* @author treeroot )r6EW`$  
* @since 2006-2-2 PRu&3BP  
* @version 1.0 |CD"*[j]  
*/ g}xQ6rd  
public class SelectionSort implements SortUtil.Sort { _k66Mkd#b  
s4LO&STh{  
/* rxZi8w>}  
* (non-Javadoc) 7:=k`yS,  
* R[[ ,q:4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) m]Y;c_DO:  
*/ M!m?#xz'c  
public void sort(int[] data) { t;qP']2  
int temp; K >tf,  
for (int i = 0; i < data.length; i++) { zd %rs~*c  
int lowIndex = i; P.\nLE J=  
for (int j = data.length - 1; j > i; j--) { e79KbLV  
if (data[j] < data[lowIndex]) { 'o4p#`R:8  
lowIndex = j; {<$b Aj  
} f'En#-?O  
} <E,%@  
SortUtil.swap(data,i,lowIndex); r|<DqTc6l  
} Ww3wsyx  
} 2B1xUj ]  
yJx?M  
} VU.@R,  
>7Jr^o#|_x  
Shell排序: EM j;2!  
Fzq41jiS  
package org.rut.util.algorithm.support; A&5:ATQ/|  
5N7H{vT_  
import org.rut.util.algorithm.SortUtil; @I3eK^#|P  
q1VH5'p@  
/** b{M7w  
* @author treeroot vG.9 H_&  
* @since 2006-2-2 N#xG3zZl|N  
* @version 1.0 k\)Cw  
*/ 0Rn+`UnwB  
public class ShellSort implements SortUtil.Sort{ NaUr!s  
L{{CAB!  
/* (non-Javadoc) d3Di/Iej   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )U t5+-UK  
*/ T Eu'*>g  
public void sort(int[] data) { /1w2ehE<  
for(int i=data.length/2;i>2;i/=2){ :\ QUs}  
for(int j=0;j insertSort(data,j,i); 1QqHF$S  
} cW8\d  
} ,Ds.x@p  
insertSort(data,0,1); Z=S>0|`R  
} /s:fW+C  
bJ /5|E?  
/** \Gp*x\<^Z  
* @param data JC?N_kP%W  
* @param j &K+0xnUH  
* @param i RD,5AShP  
*/ qPGuo5^  
private void insertSort(int[] data, int start, int inc) { A Io|TD5{~  
int temp; Q%S9fq,q  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); jvy$t$az  
} XL}"1lE  
} *>8ce-PV  
} yCz|{=7"j  
d4?d4;{  
} RI n9(r  
5sO@OV\ y  
快速排序:  cgu~  
Y4.Eq+$gh  
package org.rut.util.algorithm.support; GwU?wIIj^  
M\<w#wZ  
import org.rut.util.algorithm.SortUtil; H].y w9  
Lv[OUW#S  
/** 266oTER]v:  
* @author treeroot | tQiFC  
* @since 2006-2-2 E; $+f  
* @version 1.0 :aLT0q!K  
*/ AV8T  
public class QuickSort implements SortUtil.Sort{ |Hr:S":9  
o]n!(f<(*  
/* (non-Javadoc) g| <wyt[  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YGvUwj'2a  
*/ FCj{AD  
public void sort(int[] data) { &;TJ~r#K  
quickSort(data,0,data.length-1); ti5HrKIw  
} F^$led1/F  
private void quickSort(int[] data,int i,int j){ UO Ug4  
int pivotIndex=(i+j)/2; K5t0L!6<+  
file://swap !5@_j,lW(  
SortUtil.swap(data,pivotIndex,j); G_H?f\/  
VhGs/5  
int k=partition(data,i-1,j,data[j]); =DbY?Q<Q  
SortUtil.swap(data,k,j); m#/_x  
if((k-i)>1) quickSort(data,i,k-1); ;TiUpg</_3  
if((j-k)>1) quickSort(data,k+1,j); penlG36Q  
P,S G.EFK  
} >ydRSr^  
/** hg@}@Wq\)  
* @param data K0+.q?8D|  
* @param i 7xo4-fIuT  
* @param j 3-n1 9[zk  
* @return NSA F4e  
*/ 1SIq[1  
private int partition(int[] data, int l, int r,int pivot) { r,P1^uHx  
do{ 2aA`f7  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Uggw-sRU  
SortUtil.swap(data,l,r); #zUXyT#X  
} "[p@tc?5  
while(l SortUtil.swap(data,l,r); zQ6p+R7D  
return l; 0H_!Kg  
} H5cV5E0  
9i5,2~  
} m(iR|Zx  
Q:C$&-$  
改进后的快速排序: :K82sCy%5  
^i)hm  
package org.rut.util.algorithm.support; M]v=-  
U).*q?.z  
import org.rut.util.algorithm.SortUtil; $*a'84-5G-  
<N,)G |&  
/** DHC+C4  
* @author treeroot f;SC{2f  
* @since 2006-2-2 Mp$@`8X`  
* @version 1.0 `p kMN  
*/ ysIh[1E~%:  
public class ImprovedQuickSort implements SortUtil.Sort { s^OO^%b  
)+")Sz3zx  
private static int MAX_STACK_SIZE=4096; OYC_;CP  
private static int THRESHOLD=10; x]mxD|?f  
/* (non-Javadoc) ]j~"mFAP  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) y)c5u%(  
*/ ^I mP`*X  
public void sort(int[] data) { pg+[y<B  
int[] stack=new int[MAX_STACK_SIZE]; wu9=N ^x  
o'<^LYSnB  
int top=-1; *1Z5+uVT[  
int pivot; y7i%W4  
int pivotIndex,l,r; lOwS&4UT  
,5Pl\keY  
stack[++top]=0; h0Z{,s}  
stack[++top]=data.length-1; ow=UtA-^O  
Si 9Z>MR  
while(top>0){ Q^K"8 ;  
int j=stack[top--]; 8.=\GV  
int i=stack[top--]; \,Lo>G`!  
;8S/6FI  
pivotIndex=(i+j)/2; >N\0"F7.  
pivot=data[pivotIndex]; t2" (2  
!  Z`0(d  
SortUtil.swap(data,pivotIndex,j); *Oc.9 F88"  
Awv`)"RAR  
file://partition XMB[h   
l=i-1; 9~rUkHD  
r=j; Z|9u]xL  
do{ \AUI|M;'  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot));  =$8nUX`  
SortUtil.swap(data,l,r); am_gH  
} wv QMnE8\  
while(l SortUtil.swap(data,l,r); y %$O-q  
SortUtil.swap(data,l,j); e^YHJ>@  
X2mREt9  
if((l-i)>THRESHOLD){ '1fNBH2  
stack[++top]=i; }0`nvAf  
stack[++top]=l-1; wfvU0]wk}  
} lDC$F N  
if((j-l)>THRESHOLD){  O|A_PyW  
stack[++top]=l+1; ;R=.iOn  
stack[++top]=j; BG^C9*ZuP  
} "1q>At  
$P7iRM]  
} &0TVi  
file://new InsertSort().sort(data); :M{Y,~cP  
insertSort(data); "TV(H+1,z  
} !J*,)kRN  
/** {HC@u{K -  
* @param data %u^ JpC{E  
*/ -5>-%13  
private void insertSort(int[] data) { wfL-oi'5  
int temp; 8E&XbqP+  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1);  rdnno  
} U`Jy!x2m  
} .O*bILU  
} Ko&hj XHx  
!}\4u tHY  
} 3bqC\i^[\m  
m+{K^kr[  
归并排序: =@u 5|:  
z|7zj/+g  
package org.rut.util.algorithm.support; ~m1P_`T  
bk<\ujH  
import org.rut.util.algorithm.SortUtil; Sx:Ur>?hd5  
t#nn@Yf  
/** LN l#h  
* @author treeroot 3QSZ ZJ  
* @since 2006-2-2 2>-S-;i  
* @version 1.0 o47r<>t  
*/ RO0>I8c1c  
public class MergeSort implements SortUtil.Sort{ $wYtyN[  
{Y}dv`G#Iu  
/* (non-Javadoc) P+t#4J  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V>64/  
*/ ]%uZ\Q;9p  
public void sort(int[] data) { ,<<4*  
int[] temp=new int[data.length]; p5O",3,A4  
mergeSort(data,temp,0,data.length-1); bsxTqJ  
} @`-[;?>  
[U#72+K  
private void mergeSort(int[] data,int[] temp,int l,int r){ VKm!Ri$  
int mid=(l+r)/2; FVv8--  
if(l==r) return ; 4$/i%B#ad  
mergeSort(data,temp,l,mid); .t&R>9cZ^  
mergeSort(data,temp,mid+1,r); M fk2mIy  
for(int i=l;i<=r;i++){ T,fI BD:  
temp=data; 7@.cOB`y@3  
} 1[*UYcD  
int i1=l; *'"T$ib  
int i2=mid+1; Nf3.\eR  
for(int cur=l;cur<=r;cur++){ Bb&^ {7  
if(i1==mid+1) #QvMVy  
data[cur]=temp[i2++]; (vR 9H(#  
else if(i2>r) a</D_66  
data[cur]=temp[i1++]; ?Y:x[pOe  
else if(temp[i1] data[cur]=temp[i1++]; *F>v]8  
else o!E v;' D  
data[cur]=temp[i2++]; 1tCQpf  
} RUCPV[{b  
} + SZYg[  
5_0(D;Q  
} q;5 i4|  
B:"THN^  
改进后的归并排序: EzW)'Zzw~  
dk QaM@  
package org.rut.util.algorithm.support; !KKT[28v  
k^$+n_  
import org.rut.util.algorithm.SortUtil; J68j=`Y  
q0%  
/** wn Y$fT9  
* @author treeroot at!Y3VywG  
* @since 2006-2-2 l ?Y_~Wuw  
* @version 1.0 ^^i6|l1  
*/ d;Hn#2C  
public class ImprovedMergeSort implements SortUtil.Sort { r _,_5 @0e  
MyJ4><oG  
private static final int THRESHOLD = 10; $d+DDm1o  
nfb]VN~(  
/* It_M@  
* (non-Javadoc) L?_7bX oD  
* : FAH\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Bhqft;Nuh  
*/ /wQL  
public void sort(int[] data) { ]DFXPV  
int[] temp=new int[data.length]; rI5F oh6  
mergeSort(data,temp,0,data.length-1); vgn@d,v  
} UX`]k{Mz  
-3Avs9`5  
private void mergeSort(int[] data, int[] temp, int l, int r) { W$dn_9W  
int i, j, k; nmlPX7!{$  
int mid = (l + r) / 2; E{=2\Wkcp  
if (l == r) _2fkb=2@  
return; _ 7oV<  
if ((mid - l) >= THRESHOLD) k<w(i k1bi  
mergeSort(data, temp, l, mid); 89{HJ9}  
else =U OLT>!  
insertSort(data, l, mid - l + 1);  <VjJAu  
if ((r - mid) > THRESHOLD) 3>zN/ f  
mergeSort(data, temp, mid + 1, r); /)N@M  
else ?!w^`D0}o  
insertSort(data, mid + 1, r - mid); 6nDV1O5  
L+B?~_*  
for (i = l; i <= mid; i++) { OYM@szM  
temp = data; =9L$L|W  
} d lH$yub  
for (j = 1; j <= r - mid; j++) { iK;dU2h  
temp[r - j + 1] = data[j + mid]; +&tgJ07A  
} Q8p&Ki;i  
int a = temp[l]; U]qav,^[  
int b = temp[r]; 78n=nHS  
for (i = l, j = r, k = l; k <= r; k++) { 2^~<("+w  
if (a < b) { (-7ZI"Ku  
data[k] = temp[i++];  R7oj#  
a = temp; %v5R#14[n  
} else { 1rw0sAuGy  
data[k] = temp[j--]; W]<$0  
b = temp[j]; K.tlo^#^B[  
} "Z,q?Fc  
} kI*(V [i  
} *VSel4;\t  
3zuF{Q2P<  
/** 5yh/0i5|  
* @param data iMF<5fLH&  
* @param l 'f8(#n=6qP  
* @param i >YW\~T  
*/ Auy".br'  
private void insertSort(int[] data, int start, int len) { '2J0>Bla  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); /4=-b_2Y~  
} C`oa3B,z  
} ;y?);!g  
} ;N+$2w  
} dYFzye  
@$Qof1j'%  
堆排序: mOll5O7VW  
fbrp#G71y  
package org.rut.util.algorithm.support; ,zcQS-e2  
lw8"'0  
import org.rut.util.algorithm.SortUtil; (J$\-a7<f  
b yg0.+e0  
/** kg5ev8  
* @author treeroot Eu@5L9A  
* @since 2006-2-2 \`'KlF2  
* @version 1.0 Qx|H1_6  
*/ `znB7VQ0  
public class HeapSort implements SortUtil.Sort{ q)u2Y]  
[y) Fc IK}  
/* (non-Javadoc) lYf+V8{  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $<@\-vYvr@  
*/ ]7sx;KFv  
public void sort(int[] data) { 6,Hqb<(  
MaxHeap h=new MaxHeap(); 1.@vS&Y7OE  
h.init(data); \ v@({nB8  
for(int i=0;i h.remove(); n_[i0x7#  
System.arraycopy(h.queue,1,data,0,data.length); .W\ve>;  
} ,cTgR78'  
"yb WDWu  
private static class MaxHeap{ z,;;=V6j  
>hMUr*j  
void init(int[] data){ = Je>`{J  
this.queue=new int[data.length+1]; ~yJ4qp-  
for(int i=0;i queue[++size]=data; %:6?Y%`*[  
fixUp(size); AWr}"r?s  
} T~4mQuYi  
} yT /EHmJ  
L6:h.1 U$  
private int size=0; qX:B4,|ck  
,1n >U?5  
private int[] queue; vvu<:16  
2f,B$-#  
public int get() { -xmf'c9P  
return queue[1]; 4 k}e28  
} MlO-+}`_+  
4|J[Jdj  
public void remove() { ; ~ 4k7Uz  
SortUtil.swap(queue,1,size--); jjOgG-Q  
fixDown(1); Pd=,$UQp  
}  aA*9,  
file://fixdown dFW=9ru+MQ  
private void fixDown(int k) {  |qcD;  
int j; a^nAZ  
while ((j = k << 1) <= size) { uq7T{7~<  
if (j < size %26amp;%26amp; queue[j] j++; Os),;W0w4  
if (queue[k]>queue[j]) file://不用交换 V}8$p8#<@  
break; #m. AN  
SortUtil.swap(queue,j,k); eBB:~,C^q.  
k = j; :1fagaPg  
} I8m:3fL"  
} ^%bBW6eZ  
private void fixUp(int k) { PB'0?b}fab  
while (k > 1) { J07O:cjyu  
int j = k >> 1; mLL$|  
if (queue[j]>queue[k]) %5</ d5.  
break; R|,7d:k  
SortUtil.swap(queue,j,k); x2wg^$F*oO  
k = j; w*LbH]l<-  
} Evu=M-?  
} <zB*'m  
7Ur?ep  
} iv%w!3#  
`"y`AY/N  
} 9w ~cvlv[  
I=dGq;Jaz  
SortUtil: D!> d0k,Y  
e$l 6gY  
package org.rut.util.algorithm; LVtu*k   
9Ld9N;rWm#  
import org.rut.util.algorithm.support.BubbleSort; <bmLy_":  
import org.rut.util.algorithm.support.HeapSort; hq_~^/v\  
import org.rut.util.algorithm.support.ImprovedMergeSort; y%(X+E"n*  
import org.rut.util.algorithm.support.ImprovedQuickSort; Ub)I66  
import org.rut.util.algorithm.support.InsertSort; 66:ALFwd7  
import org.rut.util.algorithm.support.MergeSort; T-L5zu  
import org.rut.util.algorithm.support.QuickSort; d+2daKi  
import org.rut.util.algorithm.support.SelectionSort; m@qqVRn#)  
import org.rut.util.algorithm.support.ShellSort; f@z*3I;  
-zfoRU v  
/** is#8R:7.:  
* @author treeroot D5A=,\uk  
* @since 2006-2-2 0Qd%iP)6  
* @version 1.0 ym%slg  
*/ Df=q-iq<{/  
public class SortUtil { TQ9'76INb  
public final static int INSERT = 1; Ek .3  
public final static int BUBBLE = 2; rg& +  
public final static int SELECTION = 3; Vu]h4S:  
public final static int SHELL = 4; SE`l(-tL  
public final static int QUICK = 5; (O5)wej   
public final static int IMPROVED_QUICK = 6; `.BR= ['O  
public final static int MERGE = 7; ia{kab|_5  
public final static int IMPROVED_MERGE = 8; T!^Mvat  
public final static int HEAP = 9; }=GM ?,7b  
&TT":FPR  
public static void sort(int[] data) { V/y=6wUiSl  
sort(data, IMPROVED_QUICK); 9{eBgdC  
} [8]m8=n  
private static String[] name={ X , ZeD  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" "EPD2,%S  
}; HhSjR%6HY;  
}p'8w\C$  
private static Sort[] impl=new Sort[]{ =7jEz+w#  
new InsertSort(), m6n hC  
new BubbleSort(), X%4h(7;v  
new SelectionSort(), !Yh}H<w0  
new ShellSort(), pCt}66k}  
new QuickSort(), #)74X% 4(  
new ImprovedQuickSort(), !IA KVQ  
new MergeSort(), 9YC&&0 C@  
new ImprovedMergeSort(), rihlae5Kz  
new HeapSort() tV`&- H  
}; Pz473d  
LM1b I4  
public static String toString(int algorithm){ 'j79GC0  
return name[algorithm-1]; %W;u}`  
} c^S&F9/U*  
Es;;t83p  
public static void sort(int[] data, int algorithm) { \3^Pjx  
impl[algorithm-1].sort(data); I'IB_YRL4  
} !<Z{@7oH  
<-)9>c:k  
public static interface Sort { :kp0EiJ  
public void sort(int[] data); f5?hnt`m  
} ?)cJZ>$!w  
,L%p  
public static void swap(int[] data, int i, int j) { R<g=\XO'y  
int temp = data; JuJ5qIal  
data = data[j]; N$Hqa^!'T  
data[j] = temp; && C~@WY,r  
} wItzcY1m  
}  c!D> {N  
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:
10+5=?,请输入中文答案:十五