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
  • 8976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=-8} S  
插入排序: \>8r)xC  
wI\ n%#  
package org.rut.util.algorithm.support; YX||\  
["5Z =4  
import org.rut.util.algorithm.SortUtil; k]J!E-yI8  
/** - v\n0Jt  
* @author treeroot &4g]#A>@  
* @since 2006-2-2 !8cS1(a  
* @version 1.0 desrKnY  
*/ eRI'pi[#.  
public class InsertSort implements SortUtil.Sort{ i5oV,fiZo  
:?!kZD!  
/* (non-Javadoc) .f+ul@o  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |nfFI  
*/ H@!\?5I  
public void sort(int[] data) { B,`B!rU  
int temp; a}oFL%=?  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); v37TDY3;  
} 9*AH&/EXth  
} RbexsBq  
} 3*N-@;[>b  
{J`]6ba  
} Y[oNg>Rz  
LyEM^d]  
冒泡排序: .}AzkKdd@  
'Q R @G  
package org.rut.util.algorithm.support; r9),F.6,  
[K(|V  
import org.rut.util.algorithm.SortUtil; *pu ,|  
UODbT&&  
/** fpCkT[&m  
* @author treeroot } Mh@%2$  
* @since 2006-2-2 Z/y&;N4  
* @version 1.0 jacp':T  
*/ ,4RmT\%T  
public class BubbleSort implements SortUtil.Sort{ @S69u s}  
a4zq`n|3U  
/* (non-Javadoc) 7d44i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Im7t8XCG  
*/ PEKU  
public void sort(int[] data) { 0?]Y^:  
int temp; $L~?!u&N  
for(int i=0;i for(int j=data.length-1;j>i;j--){ B@v\tpR  
if(data[j] SortUtil.swap(data,j,j-1); {'.[N79xP  
} k!{0ku}]  
} =F!_ivV  
} x,f=J4yco  
} =dVPx<l5  
<!+T#)Qi  
} c ilo8x`  
){XaO;k<]  
选择排序: zv1#PfO@)  
5PaOa8=2f  
package org.rut.util.algorithm.support; \0K3TMl)J  
S4r-s;U-v/  
import org.rut.util.algorithm.SortUtil; +<\)b(  
`v]|x,l+C  
/** }8H_^G8  
* @author treeroot /dT7:x*  
* @since 2006-2-2 n^HKf^]  
* @version 1.0 o09)esy  
*/ \ O*8%  
public class SelectionSort implements SortUtil.Sort { XI4le=^EM  
hKZ<PwBi  
/* Bh'_@PHP  
* (non-Javadoc) !=C74$TH  
* 2ZZ%BV!s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) j. @CB`  
*/ f!3$xu5  
public void sort(int[] data) { C-vFl[@a0  
int temp; ("G _{tVU  
for (int i = 0; i < data.length; i++) { -tQi~Y[]  
int lowIndex = i; H$M#+EfL  
for (int j = data.length - 1; j > i; j--) { <Cbah%X  
if (data[j] < data[lowIndex]) { 9 n(.v}  
lowIndex = j; k<bA\5K  
} ?3f-" K_r  
} L7\ rx w  
SortUtil.swap(data,i,lowIndex); 'U9l  
} fyRSg B00$  
} Yy,i,c`r  
PRR]DEz  
} |OgtAI9  
>I9w|z FA  
Shell排序: *,hg+?lZ  
2X:OS/  
package org.rut.util.algorithm.support; scXY~l]I*  
4pYscB  
import org.rut.util.algorithm.SortUtil; %K9 9_Cl3  
K2'Il[  
/** 1 P0)La#  
* @author treeroot _TGv"c@V  
* @since 2006-2-2 Q1cM{$}M  
* @version 1.0 !x%$xC^Iz  
*/ ,Pq@{i#  
public class ShellSort implements SortUtil.Sort{ 6~:eO(pK l  
5$Q}Zxh  
/* (non-Javadoc) *OX;ZQg0  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "@P)  
*/ m1d*Lt>F@  
public void sort(int[] data) { J )*7JX  
for(int i=data.length/2;i>2;i/=2){ E41ay:duAl  
for(int j=0;j insertSort(data,j,i); )~u<u:N  
} RotWMGNK  
} W%6Y?pf)z  
insertSort(data,0,1); nIckI!U#D  
} %%7~<=rk  
T5:p^;?g  
/** Wu{cE;t  
* @param data *bOgRM[  
* @param j ##_`)/t,  
* @param i 1N3qMm^  
*/ V|v KYEFry  
private void insertSort(int[] data, int start, int inc) { aMLtZ7i>  
int temp; I1J/de,u  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); kMCg fL  
} vXq2="+  
} w &b?ze{  
} :u ruC  
_J N$zZ{  
} !4?QR  
h;+bHrKji  
快速排序: |qp^4vq.p  
v` G[6Z  
package org.rut.util.algorithm.support; ees^j4  
w~}*MsB  
import org.rut.util.algorithm.SortUtil; E1"H( m&6  
Xb/W[rcs  
/** R&!{3!V  
* @author treeroot = Ff2  
* @since 2006-2-2 $G,#nh2 oD  
* @version 1.0 n'i~1pM,?  
*/ UP+4xG  
public class QuickSort implements SortUtil.Sort{ 4^OPzg6Z%p  
bvR0?xn q  
/* (non-Javadoc) !_a@autj  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) RTXl3 jq  
*/ dXBXV>rbB  
public void sort(int[] data) { q]^Q?r<g::  
quickSort(data,0,data.length-1); V\2&?#GZ  
} qs Uob   
private void quickSort(int[] data,int i,int j){ 2k}8`P;  
int pivotIndex=(i+j)/2; $-J=UT2m  
file://swap x2_?B[z  
SortUtil.swap(data,pivotIndex,j); 9pehQFfH  
IXz)xdP  
int k=partition(data,i-1,j,data[j]); S.E'fc1  
SortUtil.swap(data,k,j); l ;fO]{  
if((k-i)>1) quickSort(data,i,k-1); r;~2NxMF/  
if((j-k)>1) quickSort(data,k+1,j); JvI6+[  
'Cq)/}0  
} C7hJE -  
/** 01br l^5K  
* @param data B]_NI=d  
* @param i r ?e''r  
* @param j !#b8QER  
* @return 9_/dj"5  
*/ xO` `X<  
private int partition(int[] data, int l, int r,int pivot) { K'DRX85F  
do{ F?3zw4Vt~  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); HOPi2nf{  
SortUtil.swap(data,l,r); ]K^#'[  
} ?T (@<T  
while(l SortUtil.swap(data,l,r); N H$!<ffz  
return l; 5@3hb]J  
} IT5a/;J  
=D}]|ie  
} (& =gM  
o4l=oY:'  
改进后的快速排序: |PY*"Ul  
V']{n7a-  
package org.rut.util.algorithm.support; Y \oz9tf8  
e5HHsR6  
import org.rut.util.algorithm.SortUtil; '(.vB~m7*+  
{i!@C(M3  
/** %aHQIoxg  
* @author treeroot 9NPOdt:@  
* @since 2006-2-2 -Y:^<C^^&8  
* @version 1.0 VW%eB  
*/ &1(PS)s  
public class ImprovedQuickSort implements SortUtil.Sort { V9SkB3-'  
ndB [f  
private static int MAX_STACK_SIZE=4096; 6.0/asN}  
private static int THRESHOLD=10; !=t.AgmL  
/* (non-Javadoc) kH9fK80  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) T=- $ok`G  
*/ V]fsjpvlmr  
public void sort(int[] data) { )RZ:\:c  
int[] stack=new int[MAX_STACK_SIZE]; {YT@$K]w,  
!92zC._  
int top=-1; c1CUG1i  
int pivot; mY& HK)  
int pivotIndex,l,r; [$+N"4  
&nXa /XIZ_  
stack[++top]=0; Ac,Qj`'V  
stack[++top]=data.length-1; uLK4tQ  
LNU#NJ^Axt  
while(top>0){ ] 1:pnd  
int j=stack[top--]; ML= :&M!ao  
int i=stack[top--]; OqW (C  
UwQyAD]Ht  
pivotIndex=(i+j)/2; jy kY8;4  
pivot=data[pivotIndex]; 8t$w/#'@  
~6HaZlBB  
SortUtil.swap(data,pivotIndex,j); to%n2^^K  
y G{;kJ P  
file://partition !JOM+P:  
l=i-1; x[w!buV0\  
r=j; k NnI$(H"H  
do{ sm1(I7y  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ^@a|s Sb  
SortUtil.swap(data,l,r); 2uajK ..b  
} x 8v2mnk  
while(l SortUtil.swap(data,l,r); I"Gr<?r  
SortUtil.swap(data,l,j); m@2;9  
+:#x!i;W8[  
if((l-i)>THRESHOLD){ v_s(  
stack[++top]=i; D) my@W0,  
stack[++top]=l-1; QaAWO  
} 'nR'o /!  
if((j-l)>THRESHOLD){ <6(&w9WY  
stack[++top]=l+1; Co%EJb"tk  
stack[++top]=j; 8G6[\P3fQ  
} +_E\Omcw  
}-8ZSWog6f  
} 8E:d!?<^&I  
file://new InsertSort().sort(data); {YoK63b$  
insertSort(data); q=+AN</  
} M6mJ'Q482  
/** ZY Ci&l  
* @param data W.O]f.h  
*/ fkjo  
private void insertSort(int[] data) { *>%tx k:)  
int temp; O,+ZD^  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ?~_[/  
} }wkZ\q[  
} @$bEY#*C  
} [ {|868  
pMy];9SvW  
}  t R(Nko  
@9X+ BdQU  
归并排序: &qO#EEqG]  
O 6}eV^y  
package org.rut.util.algorithm.support; 2 &+Nr+P  
Z91GM1lrf8  
import org.rut.util.algorithm.SortUtil; +l8`oQuG  
%l.5c Sn@  
/** Vw~st1",[  
* @author treeroot wm<`0}  
* @since 2006-2-2 ;I5u"MDHGI  
* @version 1.0 F#S )))#  
*/ W? ^ ?Kx  
public class MergeSort implements SortUtil.Sort{ #3WKm*T/  
F=qG +T  
/* (non-Javadoc) 0zC mU)ng  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZNX=]]HM<n  
*/ 6k@(7Mw8A  
public void sort(int[] data) { e71dNL'$  
int[] temp=new int[data.length]; dQkp &.  
mergeSort(data,temp,0,data.length-1); Q Jnji  
} dhAkD-Lh  
c<c"n'  
private void mergeSort(int[] data,int[] temp,int l,int r){ HT: p'Yyi  
int mid=(l+r)/2; *sPG,6>  
if(l==r) return ; j0F'I*Z3  
mergeSort(data,temp,l,mid); 'q:t48&  
mergeSort(data,temp,mid+1,r); ff3HR+%M  
for(int i=l;i<=r;i++){ 0:SR29(p1  
temp=data; (> {CwtH][  
} MkCq$MA  
int i1=l;  erW[q  
int i2=mid+1; mTsl"A>  
for(int cur=l;cur<=r;cur++){ {@7{!I|eD  
if(i1==mid+1) s,*kWy"jp  
data[cur]=temp[i2++]; 6L)]nE0^  
else if(i2>r) Q-qM"8I  
data[cur]=temp[i1++]; BnL[C:|  
else if(temp[i1] data[cur]=temp[i1++]; k-`5T mW  
else hj_%'kk-A  
data[cur]=temp[i2++]; 13X\PO'9  
} x2M'!VK>n1  
} d;-/F b{4  
7 z#Xf  
} ofu {g  
0<{zW%w  
改进后的归并排序: `]0E)  
ox2?d<dC6  
package org.rut.util.algorithm.support; (i"@{[IP  
WN+D}z]  
import org.rut.util.algorithm.SortUtil; Jn/"(mM  
sr*3uI-)L  
/** rphfW:  
* @author treeroot zxV,v*L)  
* @since 2006-2-2 -q}c;0vL-a  
* @version 1.0 9PM\D@A{  
*/ :*`5|'G}  
public class ImprovedMergeSort implements SortUtil.Sort { T,sArKBI  
A{3?G -]*  
private static final int THRESHOLD = 10; ju AUeGT  
_W3>Km-A=/  
/* -ST[!W V  
* (non-Javadoc) ;Az9p h  
* j1yW{  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &QoV(%:]  
*/ ~G;lEp  
public void sort(int[] data) { \U0p?wdr:  
int[] temp=new int[data.length]; >\x   
mergeSort(data,temp,0,data.length-1); <Kq4thR  
} VEuT!^0Z  
9MmAoLm  
private void mergeSort(int[] data, int[] temp, int l, int r) { *&m{)cTs  
int i, j, k; w[A$bqz   
int mid = (l + r) / 2; `h:$3a:5  
if (l == r) J'%  
return; <DM /"^*  
if ((mid - l) >= THRESHOLD) OjUZ-_J  
mergeSort(data, temp, l, mid); ')8c  
else i r-= @@  
insertSort(data, l, mid - l + 1); Rqk;!N  
if ((r - mid) > THRESHOLD) C XZO  
mergeSort(data, temp, mid + 1, r); JS&=V 67[  
else #})OnM^],  
insertSort(data, mid + 1, r - mid); $Eo)i  
9qHbV 9,M  
for (i = l; i <= mid; i++) { [KT'aGK$  
temp = data; D(m2^\O[  
} CflGj0oy8  
for (j = 1; j <= r - mid; j++) { 7<ZP(I5X  
temp[r - j + 1] = data[j + mid]; RkrZncBgV<  
} z&3in  
int a = temp[l]; Q}A*{9#|  
int b = temp[r]; \UD:9g"  
for (i = l, j = r, k = l; k <= r; k++) { Yb~[XS |p  
if (a < b) { /hojm6MM  
data[k] = temp[i++]; >sUavvJ~x  
a = temp; +~E;x1&'  
} else { p\7(`0?8VN  
data[k] = temp[j--]; *G<K@k  
b = temp[j]; S:*.,zC  
} AWY#t&  
} 123 6W+  
} [+q':T1W-  
^ RS?y8  
/** jlf.~ vt  
* @param data xUiSAKrcM  
* @param l '`/Qr~]  
* @param i Vm_waa  
*/ U^ec g{  
private void insertSort(int[] data, int start, int len) { ,:Q+>h  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); /4]<ro67E6  
} nkv+O$LXP  
} dK5|tWJX  
} L=ala1{O  
} kb27$4mm  
AB!P(  
堆排序: :r{;'[38  
?l6NQ;z  
package org.rut.util.algorithm.support; ^9{mjy0Q  
^F>C|FJ2  
import org.rut.util.algorithm.SortUtil; yc#0c[ZQu  
lji&]^1  
/** X0h`g)Bbf  
* @author treeroot th$?#4SbR  
* @since 2006-2-2 (iwZs:k-  
* @version 1.0 baD`k?](  
*/ l(o#N'!j4  
public class HeapSort implements SortUtil.Sort{ PD- <D~7  
_I"T(2Au  
/* (non-Javadoc) n#{z"G  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Qx B0I/ {  
*/ |wnXBKV(  
public void sort(int[] data) { )} I>"n  
MaxHeap h=new MaxHeap(); $IM}d"/9  
h.init(data); P6n9yJ$,cb  
for(int i=0;i h.remove(); pyW&`(]S  
System.arraycopy(h.queue,1,data,0,data.length); BrWo/1b  
} XM9}ax  
oi@hZniP?  
private static class MaxHeap{ |>/T*zk<  
*Zj2*e{Z9U  
void init(int[] data){ :sf(=Y.qA  
this.queue=new int[data.length+1]; p~n62(  
for(int i=0;i queue[++size]=data; W? `%it5  
fixUp(size); w^_[(9 `  
} b5-WK;  
} -^Pn4y]A)  
k>2tC<  
private int size=0; =JqKdLH  
tX<. Ud  
private int[] queue; 2MV!@rx  
jkzC^aG  
public int get() { l7+[Zn/v *  
return queue[1]; nB; yS<  
} j4!g&F _y  
&!kD81?Mm  
public void remove() { u%o2BLx  
SortUtil.swap(queue,1,size--); 4RLuv?,)~  
fixDown(1); TJ&Z/k3-  
} }m`+E+T4  
file://fixdown $CgJ+ua\8  
private void fixDown(int k) { /nbHin#we  
int j; ^an3&  
while ((j = k << 1) <= size) { Gkc.HFn(  
if (j < size %26amp;%26amp; queue[j] j++; *dTI4k  
if (queue[k]>queue[j]) file://不用交换 o7qZy |\4S  
break; ai3wSUYJi  
SortUtil.swap(queue,j,k); i9QL}d  
k = j; 5Tl3k=o}  
} P?.j wI  
} lY.{v]i }  
private void fixUp(int k) { (jV_L 1D  
while (k > 1) { "JH / ODm  
int j = k >> 1; o 0-3[W'x<  
if (queue[j]>queue[k]) Cwb }$=p'  
break; )kBN]>&R  
SortUtil.swap(queue,j,k); i^i^g5l!  
k = j; \-Oq/g{j  
} ^lt;K{  
} A6D@#(D  
f vAF0 a  
} -0 e&>H%  
gbC!>LV  
} yY 3Mv/R  
6r|BiHP  
SortUtil: =GP~h*5es  
NoR=:Q 9e  
package org.rut.util.algorithm; ~h:/9q  
2I8 RO\zR  
import org.rut.util.algorithm.support.BubbleSort; I3#h  
import org.rut.util.algorithm.support.HeapSort; J Uf{;nt  
import org.rut.util.algorithm.support.ImprovedMergeSort; q=_&izmE'7  
import org.rut.util.algorithm.support.ImprovedQuickSort; B.J_(V+  
import org.rut.util.algorithm.support.InsertSort; ,h#U<CnP#  
import org.rut.util.algorithm.support.MergeSort; zFR=inI  
import org.rut.util.algorithm.support.QuickSort; " ,qcqG(  
import org.rut.util.algorithm.support.SelectionSort; b8>2Y'X  
import org.rut.util.algorithm.support.ShellSort; JfrPK/Vn  
zv Dg1p  
/** !9n!:"(r  
* @author treeroot OYj4G ?c  
* @since 2006-2-2 |%i|P)]  
* @version 1.0 #S*@RKSE|7  
*/ A`H&" A  
public class SortUtil { ]tu:V,q  
public final static int INSERT = 1; o#X=1us  
public final static int BUBBLE = 2; {m<NPtp910  
public final static int SELECTION = 3; EYsf<8cl  
public final static int SHELL = 4; jn+M L&  
public final static int QUICK = 5; kW 7 $  
public final static int IMPROVED_QUICK = 6; ';CL;A;  
public final static int MERGE = 7; M_ GN3  
public final static int IMPROVED_MERGE = 8; A3!xYG=+  
public final static int HEAP = 9; :epjJ1mW  
9rCvnP=  
public static void sort(int[] data) { jP{W|9@ (  
sort(data, IMPROVED_QUICK); @S-p[u  
} cP]5Qz   
private static String[] name={ SU {U+  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" B(omD3jzN  
}; ;'|Mt)\  
uia[>&2  
private static Sort[] impl=new Sort[]{ 3hPj;-u  
new InsertSort(), x'uxSeH$  
new BubbleSort(), M.[A%_|P  
new SelectionSort(), r N.<S[  
new ShellSort(), P XH"%vVF  
new QuickSort(), MV~-']2u  
new ImprovedQuickSort(), :'t+*{ff  
new MergeSort(), W{{{c2 .  
new ImprovedMergeSort(), VkD8h+)  
new HeapSort() C4`u3S  
}; ,^>WC G  
q3~RK[OCq  
public static String toString(int algorithm){ {e3XmVAI  
return name[algorithm-1]; ]t23qA@^2  
} 2&k5X-Y  
~I_v {  
public static void sort(int[] data, int algorithm) { _ i-(` 5  
impl[algorithm-1].sort(data); IIrXI8'}  
} Z6`oGFq  
n*HRGJ  
public static interface Sort { .QaHE`e{  
public void sort(int[] data); gk*Md+  
} DH5]Kzb/  
jDaWmy<ha  
public static void swap(int[] data, int i, int j) { m V U(b,  
int temp = data; W8/8V,  
data = data[j]; S]P80|!|  
data[j] = temp; 0D\b;ju<  
} v)TFpV6b{p  
} EZz`pE  
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