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
  • 5505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。 } -;)G~h/"  
插入排序: V!^0E.?a  
7'i{JPm  
package org.rut.util.algorithm.support; z,SI  
2; ,8 u  
import org.rut.util.algorithm.SortUtil; &}2@pu[S?7  
/** >,3uu}s  
* @author treeroot c6c@ Xd V  
* @since 2006-2-2 o}/|"(K  
* @version 1.0 Ma$~B0!;s  
*/ &V <f;PF(I  
public class InsertSort implements SortUtil.Sort{ 3rMJC\h  
Kn@#5MC rU  
/* (non-Javadoc) L)F4)VL  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H2#o X  
*/ 9Scg:}Nj  
public void sort(int[] data) { dz +Dk6"R  
int temp; ,~ZD"'*n6g  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ,3f>-mP  
} ku]?"{Xx  
} URbB2 Bi  
} kI@<H<  
IHd W!q  
} "P(obk  
K#X/j'$^  
冒泡排序: v)_FiY QQ6  
QdQ1+*/+U  
package org.rut.util.algorithm.support; Y.Z:H!P);$  
K@cWg C  
import org.rut.util.algorithm.SortUtil; ~KkC089D  
#m?)XB^_  
/** we^' R}d  
* @author treeroot 5BXku=M  
* @since 2006-2-2 X"_ ^^d-  
* @version 1.0 "zd_eC5  
*/ {en'8kS  
public class BubbleSort implements SortUtil.Sort{ h ka_Fo  
dr=Q9%  
/* (non-Javadoc) Q]N&^ E  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _Q I!UQdW  
*/ *. |%uf.  
public void sort(int[] data) { EUcD[Rv  
int temp; BPt? 3tC  
for(int i=0;i for(int j=data.length-1;j>i;j--){ 1Pw1TO"Z  
if(data[j] SortUtil.swap(data,j,j-1); *w*>\ZhOm  
} -XCs?@8EQ  
} [yQ%g;m  
} 9.M'FCd~M  
} XJ3sqcS  
.|R4E  
} `{Q'iydU  
bK~Toz< k  
选择排序: O=}Rp 1  
1a{r1([)  
package org.rut.util.algorithm.support; B^P&+,\[}  
3lpxh_  
import org.rut.util.algorithm.SortUtil; 0`c{9gY.  
x@rQ7K>  
/** , %z HykP  
* @author treeroot sV%DX5@  
* @since 2006-2-2 wv{ Qx^  
* @version 1.0 C2v_] ,]  
*/ a0sz$u  
public class SelectionSort implements SortUtil.Sort { !aF~5P7%  
TK\3mrEI  
/* ' :B;!3a0d  
* (non-Javadoc) [F+W]Jk,  
* Zc1x"j  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d:K\W[$Bz  
*/ F.$z7ee@  
public void sort(int[] data) { .06D_L"M  
int temp; mWaij]1>  
for (int i = 0; i < data.length; i++) { Yr-SlO>  
int lowIndex = i; G|1.qHP[F  
for (int j = data.length - 1; j > i; j--) { lN g){3  
if (data[j] < data[lowIndex]) { 6 V0Ayxg7  
lowIndex = j; A2M( ad  
} =#W:z.w  
} -9= DDoO  
SortUtil.swap(data,i,lowIndex); OriYt  
} 9c)#j&2?H  
} ;n(f?RO3X  
(wZ!OLY%}  
} qovsM M  
<YFDS;b|  
Shell排序: U0j>u*yE  
NC-K`)  
package org.rut.util.algorithm.support; _`\!+qGq  
,k4pW&A  
import org.rut.util.algorithm.SortUtil; oxc;DfJ_  
=+j3E<w  
/** ;HXk'xN  
* @author treeroot 0!dNW,NfJ  
* @since 2006-2-2 P1LOj  
* @version 1.0 {j>a_]dTVX  
*/ f- 9t  
public class ShellSort implements SortUtil.Sort{ 2n@`O g_0  
[//i "Nm  
/* (non-Javadoc) a&b/C*R_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) NLL"~  
*/ r]p3DQ  
public void sort(int[] data) { 8N'hG,  
for(int i=data.length/2;i>2;i/=2){ Q NMZR  
for(int j=0;j insertSort(data,j,i); +8//mrL_/  
} %`5 (SC].  
} raPOF6-_rH  
insertSort(data,0,1); tp cB}HUv  
} J Ah!#S(  
Zc~7R`v7}  
/** OU,FU@6,7w  
* @param data }bS1M  
* @param j d0I s|Gs  
* @param i }UW*[dCf>C  
*/ ?{f6su@rW  
private void insertSort(int[] data, int start, int inc) { gE\ ^ vaB  
int temp; '1b 1N5~  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); C][hH?.  
} L4/ns@e  
} bOr11?  
} a`w=0]1&*  
6J,h}S  
} a pa&'%7  
iLSUz j`  
快速排序: <7J3tn B  
2w7$"N  
package org.rut.util.algorithm.support; WkA47+DsV  
(t@)`N{  
import org.rut.util.algorithm.SortUtil; h76j|1gI  
9t\14tVwx  
/** q%;cu1^"M  
* @author treeroot qK%N{ro[{?  
* @since 2006-2-2 xQvI$vP  
* @version 1.0 _j , Tc*T  
*/ "H(3pl.  
public class QuickSort implements SortUtil.Sort{ cDz@3So.b  
n?r8ZDJ'  
/* (non-Javadoc) pwfQqPC#_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }5vKQf   
*/ 4%r?(C0x  
public void sort(int[] data) { -1Li&K7  
quickSort(data,0,data.length-1); ZSQiQ2\)  
} 49*f=gpGj2  
private void quickSort(int[] data,int i,int j){ s|<n7 =J  
int pivotIndex=(i+j)/2; Q;3`T7  
file://swap fW2NYQP$:  
SortUtil.swap(data,pivotIndex,j); x!GDS>  
g3kbsi7_:  
int k=partition(data,i-1,j,data[j]); /(s |'"6  
SortUtil.swap(data,k,j); Q"FN"uQ}x  
if((k-i)>1) quickSort(data,i,k-1); ivo><"Y(r  
if((j-k)>1) quickSort(data,k+1,j); IwnDG;+Ap  
S,:!H@~B  
} 1w7tRw  
/** G^d3$7  
* @param data /P,1KVQPh  
* @param i a8T9=KY^  
* @param j cOP'ql{"  
* @return @3c'4O   
*/ 5CK\Z'c~!  
private int partition(int[] data, int l, int r,int pivot) { Zt9G[[]  
do{ yP$esDP  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); (9%?ik  
SortUtil.swap(data,l,r); s 7 nl  
} G]aey>)  
while(l SortUtil.swap(data,l,r); ~Re4zU  
return l; 9]=J+ (M  
} jq)Bj#'7  
o i'iZX  
} ),N,!15j,  
~fkcal1@  
改进后的快速排序: q#AEu xI1  
h<&GdK2U+  
package org.rut.util.algorithm.support; 4Px|:7~wT8  
)Q`Ycz-  
import org.rut.util.algorithm.SortUtil; =a,qRO  
N:U}b1$L6  
/** s&nat4{B  
* @author treeroot yGtTD9j  
* @since 2006-2-2 FA-cTF[,(  
* @version 1.0 K]$PRg1| 3  
*/ ||X3g"2W9  
public class ImprovedQuickSort implements SortUtil.Sort { V6dq8Z"h  
Fj<*!J$,  
private static int MAX_STACK_SIZE=4096; %_s)Gw&sq  
private static int THRESHOLD=10; <MG&3L.[  
/* (non-Javadoc) kNWTM%u9  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'M6+(`x  
*/ G)s.~ T  
public void sort(int[] data) {  ri4z^1\  
int[] stack=new int[MAX_STACK_SIZE]; f{VV U/$  
|Yw k  
int top=-1; 6inAnC@I  
int pivot; xT&~{,9  
int pivotIndex,l,r; .\$A7DD+A  
b(N\R_IQ~  
stack[++top]=0; Wx-0Ip'9  
stack[++top]=data.length-1; !~C%0{9+u@  
hA 5p'a+K  
while(top>0){ _(J#RH  
int j=stack[top--]; Y({ R\W|  
int i=stack[top--]; %( 7##f_  
P.Bwfa  
pivotIndex=(i+j)/2; | I:@:  
pivot=data[pivotIndex]; eV}"L:bgJ  
B \R X  
SortUtil.swap(data,pivotIndex,j); ShC$ue?Q  
1#3|PA#>  
file://partition wyX3qH  
l=i-1; w3q'n%  
r=j; %R?7u'=~  
do{ QErdjjg E  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); )lLeL#]FLO  
SortUtil.swap(data,l,r); 7Q|<6210  
} :8O T  
while(l SortUtil.swap(data,l,r); O'98OH+u  
SortUtil.swap(data,l,j); %]7 6u7b/  
K!\v ?WbF  
if((l-i)>THRESHOLD){ rtAPkXJFM  
stack[++top]=i; >(P(!^[f  
stack[++top]=l-1; lv/im/]v  
} l9uocP:D  
if((j-l)>THRESHOLD){ 3 orZBT  
stack[++top]=l+1; I]d-WTd  
stack[++top]=j; w.58=Pr  
} 99*k&mb  
j|pTbOgk%  
} PY_8*~Z  
file://new InsertSort().sort(data); 4r4 #u'Om  
insertSort(data); T5T%[Gv  
} a6 vej  
/** _ab8z]H   
* @param data iwM xTty  
*/ A'`F Rx(  
private void insertSort(int[] data) { =| T^)J  
int temp; mOj; 0 R  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); tgG 8pL  
} )e5=<'f 1  
} nG4ZOx.*1g  
} mWZP.w^-  
+ Fo^NT  
} BAXu\a-C_  
(/$-2.@  
归并排序: Y _`JS;  
z4_B/Q  
package org.rut.util.algorithm.support; 36{OE!,i  
;SI (5rS?  
import org.rut.util.algorithm.SortUtil; eEBNO*2  
OF`J{`{r  
/** kCEuzd=$V  
* @author treeroot ) ??N]V_U  
* @since 2006-2-2 ;MNUT,U  
* @version 1.0 c! kr BS  
*/ fx+_;y  
public class MergeSort implements SortUtil.Sort{ KF#^MEw%  
I1m[M?  
/* (non-Javadoc) RK-bsf  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) dQSO8Jf  
*/ Pa0W|q#?X  
public void sort(int[] data) { >ye.rRZd`  
int[] temp=new int[data.length]; M`K]g&57hL  
mergeSort(data,temp,0,data.length-1); mW!n%f  
} <eMqg u  
V-#JV@b  
private void mergeSort(int[] data,int[] temp,int l,int r){ >vo 6X]p~  
int mid=(l+r)/2; -){6ynqv  
if(l==r) return ; ,gZp/yJ;  
mergeSort(data,temp,l,mid); o_Z9\'u  
mergeSort(data,temp,mid+1,r); ZqrS]i@$  
for(int i=l;i<=r;i++){ ,gNZHKNq  
temp=data; u-&V, *3l  
} Kkovp^G  
int i1=l; aHu0z:  
int i2=mid+1; %XN;S29d5W  
for(int cur=l;cur<=r;cur++){ -h7ssf'u[  
if(i1==mid+1) ]QR]#[Tn'  
data[cur]=temp[i2++]; QAx9W%  
else if(i2>r) xP~GpVhLF  
data[cur]=temp[i1++]; ds+K7B$  
else if(temp[i1] data[cur]=temp[i1++]; \( V1-,  
else a]fFR~ OY  
data[cur]=temp[i2++]; ZKrK >X  
} \?t8[N\_[(  
} @` Pn<_L  
`lE&:)  
} I~F&@  
mD7NQ2:wA  
改进后的归并排序: `AE6s.p?  
\^,Jh|T  
package org.rut.util.algorithm.support; >;Oa|G  
C)FO:lLr\  
import org.rut.util.algorithm.SortUtil; @C@9Tw2Y  
QyL]-zNg  
/** oy jkk  
* @author treeroot j?*n@'   
* @since 2006-2-2 $!. [R}  
* @version 1.0 r4[=pfe25  
*/ Tv7W)?3h  
public class ImprovedMergeSort implements SortUtil.Sort { K_Y{50#  
2~hdJ/  
private static final int THRESHOLD = 10; wN'S+4  
n:4 0T1: q  
/* ,=CipL9]  
* (non-Javadoc) \?v&JmEU  
* qspGNu  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p/_W*0/i  
*/ A@|Z^T:  
public void sort(int[] data) { ^_v94!a 9  
int[] temp=new int[data.length]; P=EZ6<c3&  
mergeSort(data,temp,0,data.length-1); zUJXA:L9  
} <-N eusx%  
}2S!;swg+  
private void mergeSort(int[] data, int[] temp, int l, int r) { 6!0NFP~b  
int i, j, k; <<S4l~"o  
int mid = (l + r) / 2; cd,'37pZ  
if (l == r) cHr]{@7Cs  
return; YIW9z{rrs  
if ((mid - l) >= THRESHOLD) XsJ`x  
mergeSort(data, temp, l, mid); 'X+aYF }Ye  
else H#GR*4x  
insertSort(data, l, mid - l + 1); pW8?EGO@  
if ((r - mid) > THRESHOLD) -SD:G]un  
mergeSort(data, temp, mid + 1, r); jA?[*HB  
else }Y.@:v j  
insertSort(data, mid + 1, r - mid); 5YPIv-  
n1|]ji[c  
for (i = l; i <= mid; i++) { @A8y!<  
temp = data; W:n\,P  
} ;C o"bP's  
for (j = 1; j <= r - mid; j++) { )?&mCI*  
temp[r - j + 1] = data[j + mid]; Eyf17  
} h{-en50tN  
int a = temp[l]; XdIno}pN  
int b = temp[r]; \I i# R  
for (i = l, j = r, k = l; k <= r; k++) { $#e}9g.  
if (a < b) { (421$w,B%  
data[k] = temp[i++]; ?~.9: 93  
a = temp; E l.eK9L  
} else { dk]  
data[k] = temp[j--]; (:~_#BA  
b = temp[j]; N%:uOX8{  
} 7.NL>:lu  
} JYjc^m  
} 1*9Yy~w  
`4@` G:6BL  
/** :, H_ e! X  
* @param data .Sw4{m[g  
* @param l </<z7V,{  
* @param i n@@tO#!\  
*/ NY?iuWa*g  
private void insertSort(int[] data, int start, int len) { /Tl ybSC1  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); )N{PWSPs  
} 8z=o.\@  
} "e\73?P  
} O+XQP!T  
} oKSW:A  
W{ozZuo  
堆排序: AS0(NlV  
Qh3+4nLFtb  
package org.rut.util.algorithm.support; )I<VH +6  
|'i ?o  
import org.rut.util.algorithm.SortUtil; ~:!& }e5  
tMf5TiWu@  
/** K'e!BZm6Q  
* @author treeroot "[A&S!  
* @since 2006-2-2 [uie]*^  
* @version 1.0 j }^?Snq  
*/ _mdJIa0D6k  
public class HeapSort implements SortUtil.Sort{ jkuNafp}  
)tV]h#4  
/* (non-Javadoc) $a\X(okx  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tvzO)&)$  
*/ _jkJw2+s\  
public void sort(int[] data) { v/KTEM  
MaxHeap h=new MaxHeap(); Dh{P23}  
h.init(data); 5.0;xz}#y  
for(int i=0;i h.remove(); g+.E=Ef8<4  
System.arraycopy(h.queue,1,data,0,data.length); aM[fag$c  
} &U.y):  
H-5f!>)  
private static class MaxHeap{ Rx%kAt2X  
&#q%#M:  
void init(int[] data){ F+xMXBD@>*  
this.queue=new int[data.length+1]; bg4VHT7?>)  
for(int i=0;i queue[++size]=data; jAt6 5a  
fixUp(size); `b@"GOr  
} I GcR5/3  
} S9/\L6Rmf  
DML0paOm5  
private int size=0; P#A|Pn<p  
9D%~~~ %b  
private int[] queue; Q"xDRQA  
jT QN(a9Y  
public int get() { *OE>gg&?Nh  
return queue[1]; ~ C_2D?  
} g=v[@{9Pw  
f'Xz4;  
public void remove() { Yu^}  
SortUtil.swap(queue,1,size--); 1^;&?E  
fixDown(1); m} =<@b:l  
} +fIy eX  
file://fixdown S 1Ji\  
private void fixDown(int k) { L?y,xA_  
int j;  [7)#3  
while ((j = k << 1) <= size) { zgpPu4t  
if (j < size %26amp;%26amp; queue[j] j++; VKrKA71Z~  
if (queue[k]>queue[j]) file://不用交换 Z3T26Uk  
break; / dn]`Ge)  
SortUtil.swap(queue,j,k); R91u6r#  
k = j; D3 E!jQ1  
} 2gjA>ET`N  
} s{j3F  
private void fixUp(int k) { zwHTtE  
while (k > 1) { `Sj8<O}  
int j = k >> 1; naB[0I& N  
if (queue[j]>queue[k]) =WP}RZ{S  
break; WHF:> 0B  
SortUtil.swap(queue,j,k); 2,%ne(  
k = j; ]gj@r[  
} .^1=*j(;  
}  6Ue6b$xE  
]7"mt2Q=3  
} X]CaWxM  
d}415 XA  
}  *JOv  
}`^<ZNkb/  
SortUtil: `}Hnj*  
1$2Rs-J  
package org.rut.util.algorithm; mKq9mA"(E  
`Op ";E88  
import org.rut.util.algorithm.support.BubbleSort; %s)E}cGH  
import org.rut.util.algorithm.support.HeapSort; ~GY;{  
import org.rut.util.algorithm.support.ImprovedMergeSort; IWpUbD|kC  
import org.rut.util.algorithm.support.ImprovedQuickSort;  Q{Bj(f  
import org.rut.util.algorithm.support.InsertSort; 7y`~T+  
import org.rut.util.algorithm.support.MergeSort; 2W~2Hk=0+%  
import org.rut.util.algorithm.support.QuickSort; TT&!WbA-Hk  
import org.rut.util.algorithm.support.SelectionSort; o_$r*Z|HG  
import org.rut.util.algorithm.support.ShellSort; Ap>n4~  
!! K=v7M  
/** ,|c_l)  
* @author treeroot ~d5{Q?T)  
* @since 2006-2-2 sQH.}W$C  
* @version 1.0 )d1,}o  
*/ >"nk}@  
public class SortUtil { j+ys&pDczm  
public final static int INSERT = 1; Pr/&p0@aV  
public final static int BUBBLE = 2; CC87<>V  
public final static int SELECTION = 3; C,z]q$4  
public final static int SHELL = 4; 1Q;` <=  
public final static int QUICK = 5; ) DLK<10  
public final static int IMPROVED_QUICK = 6; y! 1NS  
public final static int MERGE = 7; rC*nZ*  
public final static int IMPROVED_MERGE = 8; (c*Dvpo1  
public final static int HEAP = 9; SI(8.$1  
)*JTxMQ  
public static void sort(int[] data) { ;~q)^.K3  
sort(data, IMPROVED_QUICK); O@Kr}8^,  
} Ua3ERBX{  
private static String[] name={ BR%:`uiQ<  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" (c_hX(  
}; p]g/iLDZ  
2I4P":q  
private static Sort[] impl=new Sort[]{ 1-[{4{R  
new InsertSort(), (jyJ-qe  
new BubbleSort(), xX>448=  
new SelectionSort(), U)o8Tr  
new ShellSort(), 4'8.f5  
new QuickSort(), / q!&I  
new ImprovedQuickSort(), aH#|LrdJ  
new MergeSort(), nBj7Q!lW  
new ImprovedMergeSort(), Fu><lN7  
new HeapSort() 4%{m7CK}  
}; liB>~DVC  
_0`O}  
public static String toString(int algorithm){ .lnD]Q  
return name[algorithm-1]; t2$:*PvE  
} 3G&1. 8  
Ywr{/  
public static void sort(int[] data, int algorithm) { C|JWom\J  
impl[algorithm-1].sort(data); >) ^!gz8  
} Q'Tn+}B&  
/][U$Q;Ke  
public static interface Sort { ljCgIfZ_4  
public void sort(int[] data); w/<hyEpxg  
} n#fg7d%  
0?sp  
public static void swap(int[] data, int i, int j) { ouI0"R&@  
int temp = data; +$'/!vN  
data = data[j]; _B[(/wY  
data[j] = temp; s_8! x  
} 3IxT2@H)  
} 1WKDG~  
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