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
  • 4828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。 {pof=G  
插入排序: [d~ 25  
YMEI J}  
package org.rut.util.algorithm.support; b$Ch2Qz0q  
&$ /}HND  
import org.rut.util.algorithm.SortUtil; 2E X Rq  
/** 7TN94@kCF  
* @author treeroot |L"!^Y#=D  
* @since 2006-2-2 `*hrU{b  
* @version 1.0 +m8gS;'R4  
*/ gQ=g,X4  
public class InsertSort implements SortUtil.Sort{ "TgE@bC  
:$"L;"  
/* (non-Javadoc) V*U*_Y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :x<'>)6  
*/ d|8iD`sZz  
public void sort(int[] data) { fsDwfwil*  
int temp; H!NyM}jsr  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 30Z RKrW"~  
} C*I~14  
} 1TvR-.e  
} P5*~ Wi`  
:W\xZ  
} $MT'ZM  
~<, QxFG5  
冒泡排序: URFp3qE  
Q< q&a8~  
package org.rut.util.algorithm.support; #+- /0{HT  
02~+$R]L  
import org.rut.util.algorithm.SortUtil; 1E*No1  
Vp'Zm:  
/** 9w=GB?/  
* @author treeroot ?T(>!m  
* @since 2006-2-2 :OVre*j  
* @version 1.0 6DFF:wrm&  
*/ v3i]z9`  
public class BubbleSort implements SortUtil.Sort{ #iOoi9(  
|GvWHe`  
/* (non-Javadoc) ZO2$Aan  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {i7Wp$ug  
*/ %\ i 7  
public void sort(int[] data) { )-_]y|/D:r  
int temp; 0 7CufoI  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ?_L)|:WL  
if(data[j] SortUtil.swap(data,j,j-1); 5;5DEMe  
} ^qaS  
} p. eq N  
} GIt~"X  
} ,{HxX0  
R7o3X,-iwn  
} Nd.+Rs  
:)UF#  
选择排序: t?:}bw+m  
s:y~vd(Vi  
package org.rut.util.algorithm.support; zqDIwfW  
Ny@CP}  
import org.rut.util.algorithm.SortUtil; RnN]m!"5  
[4NJ]r M%  
/** R&cOhUj22J  
* @author treeroot 5U&b")3IT!  
* @since 2006-2-2 2g elmQnc  
* @version 1.0 (5s$vcK  
*/ <n4T*  
public class SelectionSort implements SortUtil.Sort { +rw?k/  
9Ij=~p]p  
/* [*<F   
* (non-Javadoc) b]'Uv8fbF  
* j {w'#x,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) u%J04vG"D  
*/ GJ:65)KU  
public void sort(int[] data) { j@xerY  
int temp; VQ5D?^'0/  
for (int i = 0; i < data.length; i++) { @l)HX'z0d  
int lowIndex = i; ?v4-<ewD  
for (int j = data.length - 1; j > i; j--) { 9 )1 8  
if (data[j] < data[lowIndex]) { eSNwAExm  
lowIndex = j; 'D ,efTq  
} ,f@$a3}'Lx  
} *=Ko"v }  
SortUtil.swap(data,i,lowIndex); rBd}u+:*  
} p^|IN'lx,  
} yrp5\k*{y  
F-L!o8o  
} C&\MDOjx  
J<g$hk  
Shell排序: &cDLSnR  
dW K; h  
package org.rut.util.algorithm.support; ~=$0=)c  
;D}8acQ  
import org.rut.util.algorithm.SortUtil; ~*OQRl6F  
DQC=f8  
/** xq`mo  
* @author treeroot J!O{.v  
* @since 2006-2-2 ,/?7sHK-0  
* @version 1.0 Wpgp YcPS  
*/ o~Jce$ X  
public class ShellSort implements SortUtil.Sort{ 2YT1]x 3  
h(q,-')l_  
/* (non-Javadoc) F E`4%X  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C`qo  
*/ asDk@G cu  
public void sort(int[] data) { _Xs(3V@'}  
for(int i=data.length/2;i>2;i/=2){ Lp!4X1/|\  
for(int j=0;j insertSort(data,j,i); &J>XKO nl  
} m<7Ax>  
} mGss9eZa  
insertSort(data,0,1); m=g\@&N  
} K90wX1&  
L#t^:%   
/** YJBlF2uD  
* @param data v[k;R  
* @param j R,]J~TfPK  
* @param i $KSdNFtM)A  
*/ R^v-%mG9  
private void insertSort(int[] data, int start, int inc) { U +c ?x2\  
int temp; EESGU(  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); mEL<d,XhI  
} JQi+y;  
} 79m',9{u  
} ^("23mhfJ  
{..6{~L  
} *d~).z)  
UY(pKe>  
快速排序: +c7e[hz  
tu4-##{  
package org.rut.util.algorithm.support; o|Q:am'H  
eo#2n8I>=1  
import org.rut.util.algorithm.SortUtil; 35q4](o9"  
@2yoy&IO  
/** wwvS05=[T  
* @author treeroot Z-md$=+}w  
* @since 2006-2-2 %S`ygc}|  
* @version 1.0 o\TXW qt  
*/ A7`+XqG  
public class QuickSort implements SortUtil.Sort{ `;`fA|F^  
[9<c;&$LU  
/* (non-Javadoc) 5L?_AUL  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^ gy"$F3{`  
*/ W"{:|'/v  
public void sort(int[] data) { .eBo:4T!d  
quickSort(data,0,data.length-1); _nUvDdEs,  
} =&_Y=>rA]0  
private void quickSort(int[] data,int i,int j){ /v<FH}  
int pivotIndex=(i+j)/2; \GF 9;N}V  
file://swap -`f 1l8LD2  
SortUtil.swap(data,pivotIndex,j); B;vpG?s{9  
EDDld6O,  
int k=partition(data,i-1,j,data[j]); [=EmDP:@  
SortUtil.swap(data,k,j); q PveG1+25  
if((k-i)>1) quickSort(data,i,k-1); T^Lg+g+I  
if((j-k)>1) quickSort(data,k+1,j); 6"o,)e/z  
U } K]W>Z  
} 9}*Pb6  
/** JEL.*[/  
* @param data .or1*-B K  
* @param i @cS(Bb!(M  
* @param j Jan~R ran  
* @return a_T3<  
*/ EGL7z`nt  
private int partition(int[] data, int l, int r,int pivot) { >)j`Q1Qc\  
do{ t/vw%|AS  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); V* I2  
SortUtil.swap(data,l,r); VF bso3q<j  
} :Z R5<Y>  
while(l SortUtil.swap(data,l,r); _SQQS67fu"  
return l; Y00hc8<  
} UhX)?'J  
1sIPhOIys  
} -;Ij ,  
/)J]m  
改进后的快速排序: ,]LsX"u  
KsDovy<  
package org.rut.util.algorithm.support; 2v\<MrL  
!+)5?o  
import org.rut.util.algorithm.SortUtil; X(npgkVP\  
WbwS!F<au  
/** (7 O?NS  
* @author treeroot eJy}W /  
* @since 2006-2-2 ^Z>Nbzr{  
* @version 1.0 T1U8ZEK<iu  
*/ K[^BRn  
public class ImprovedQuickSort implements SortUtil.Sort { _@D"XL#L  
Kt`/+k)m  
private static int MAX_STACK_SIZE=4096; %0_}usrsk  
private static int THRESHOLD=10; m85H x1!p.  
/* (non-Javadoc) K 9tr Iy$v  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) TMG|"|  
*/ lcR1FbJ2'  
public void sort(int[] data) { pmuT7*<19  
int[] stack=new int[MAX_STACK_SIZE]; nc9sfH3  
s?7"iE  
int top=-1; ?BnX<dbi&  
int pivot; 1a tQ9  
int pivotIndex,l,r; c2Yrg@) [  
9CFh'>}$  
stack[++top]=0; $2>"2*,04  
stack[++top]=data.length-1; nU,~*Us  
0]Qk*u<  
while(top>0){ h1+y.4  
int j=stack[top--]; 'j$n;3  
int i=stack[top--]; D}OhmOu 3  
hH~GH'dnaE  
pivotIndex=(i+j)/2; ftaa~h*  
pivot=data[pivotIndex]; kL e{3>}j  
vEc<|t  
SortUtil.swap(data,pivotIndex,j); |lMc6C  
4G'-"u^g  
file://partition Zq{TY)PI]  
l=i-1; H+5S )r  
r=j; g v7@4G  
do{ rCd*'Qg  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); #b@ sV$  
SortUtil.swap(data,l,r); P*/ig0_fM  
} o]aMhSol  
while(l SortUtil.swap(data,l,r); UG=],\E2  
SortUtil.swap(data,l,j); jP\5bg-}  
U"535<mR  
if((l-i)>THRESHOLD){ OU[ FiW-E  
stack[++top]=i; /pL'G`  
stack[++top]=l-1; KtcuGI/A  
} Bejk^V~  
if((j-l)>THRESHOLD){ c!a1@G  
stack[++top]=l+1; 'DD~xCXE  
stack[++top]=j; A2''v3-h8  
} g(l:>=g]?  
9)$gD  
} br')%f}m  
file://new InsertSort().sort(data); vlo!D9zsV3  
insertSort(data); d0YQLh  
} 6o]j@o8V  
/** wPvYnhr|G-  
* @param data ,[[Xo;q  
*/ LY2QKjgP  
private void insertSort(int[] data) { )CD-cz6n  
int temp; 3Qd%`k  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Pv\-D<&@m  
} fv:&?gc  
} a*qc  
} GHFYIor  
,|?rt`8)Q  
} .$xTX'  
aPin6L$;)  
归并排序: {-51rAyi  
%$F_oO7"  
package org.rut.util.algorithm.support; cHon' tS  
FSb4RuD9  
import org.rut.util.algorithm.SortUtil; ;FnS=Z  
F6Q nz8|  
/** *l)}o4-$  
* @author treeroot O+=C8  
* @since 2006-2-2  AtP!.p"j  
* @version 1.0 vP^V3  
*/ C~"b-T  
public class MergeSort implements SortUtil.Sort{ V1\Rj0#G  
c3J12+~;  
/* (non-Javadoc) lI;ACF^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Rw|P$dbu  
*/ m{by%  
public void sort(int[] data) { i'z (`"  
int[] temp=new int[data.length]; Hli22~7T:  
mergeSort(data,temp,0,data.length-1); _CG ED{b@  
} -_irkpdC[  
[{6fyd;  
private void mergeSort(int[] data,int[] temp,int l,int r){ <X ([VZ  
int mid=(l+r)/2; j`%a2  
if(l==r) return ; HAAU2A9B2  
mergeSort(data,temp,l,mid); N^zFKDJG  
mergeSort(data,temp,mid+1,r); c>BDw<  
for(int i=l;i<=r;i++){ AL*M`m_  
temp=data; |D1TSv}rZD  
} ;]T;mb>  
int i1=l; Nq#B4Zx  
int i2=mid+1; 98lz2d/Fcq  
for(int cur=l;cur<=r;cur++){ N;* wd<  
if(i1==mid+1) #O!gjZ,  
data[cur]=temp[i2++]; uEr['>  
else if(i2>r) ilwIqj  
data[cur]=temp[i1++]; /.Jq]"   
else if(temp[i1] data[cur]=temp[i1++]; 5-POY ug  
else w/@ tH  
data[cur]=temp[i2++]; cnj32H^+  
} j {Sbf04  
} *@g>~q{`  
a6 w'.]m  
} 15M!erT  
h/..cVD,K  
改进后的归并排序: ))E| SAr  
v>sjS3  
package org.rut.util.algorithm.support; ~;0W +  
w6|l ~.$=  
import org.rut.util.algorithm.SortUtil; H Yw7*  
YD] :3!MI  
/** 8BX9JoDi  
* @author treeroot EKNmXt1 lE  
* @since 2006-2-2 G x{G}9  
* @version 1.0 +f'@  
*/ KU;J2Kt  
public class ImprovedMergeSort implements SortUtil.Sort { Pp`[E/ qj4  
*&~ '  
private static final int THRESHOLD = 10; r;GAQH}j_  
R6\|:mI,$  
/* op61-:q/  
* (non-Javadoc) _Q7]Dw/w\  
* ow*^z78M{  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) QI`&N(n  
*/ +<fT\Oq#  
public void sort(int[] data) { @s|yH"  
int[] temp=new int[data.length]; JN3&(t  
mergeSort(data,temp,0,data.length-1); \6;b.&%w2  
} YqYobL*q/  
/}nq?Vf  
private void mergeSort(int[] data, int[] temp, int l, int r) { B* k|NZj  
int i, j, k; Ted!*HKlB  
int mid = (l + r) / 2; 'SKq<X%R;  
if (l == r) &90pKs  
return; *kt%.wPJ  
if ((mid - l) >= THRESHOLD) n,Q^M$mS0  
mergeSort(data, temp, l, mid); "s7}eWM*a  
else rN`-ak  
insertSort(data, l, mid - l + 1); =4K:l}}  
if ((r - mid) > THRESHOLD) \omfWWpK  
mergeSort(data, temp, mid + 1, r); 3W}qNY;J  
else [uFv_G{H  
insertSort(data, mid + 1, r - mid); + De-U.  
mX G W+  
for (i = l; i <= mid; i++) { NGkWr  
temp = data; D:PrFa  
} lQG;WVqW  
for (j = 1; j <= r - mid; j++) { /~P4<1  
temp[r - j + 1] = data[j + mid]; ;TboS-Y  
} L6J.^tpO  
int a = temp[l]; 0[ZwtfL1  
int b = temp[r]; jV(b?r)eT{  
for (i = l, j = r, k = l; k <= r; k++) { !jRs5{n^Ol  
if (a < b) { 51`*VR]`K  
data[k] = temp[i++]; GP_%. fO\M  
a = temp; j4$NQ]e^4  
} else { G@rV9  
data[k] = temp[j--]; \{ff7_mLo  
b = temp[j]; Qk].^'\  
} 3#Xv))w1  
} '[Bok=$B)  
} B0,C!??5  
" l>tFa  
/** 9''x'E=|  
* @param data K.42 VM)F  
* @param l +7j7zpw  
* @param i ab>>W!r@!  
*/ q=;U(,Y  
private void insertSort(int[] data, int start, int len) { 4']eJ==OH  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); `9nk{ !X\  
} ,AyQCUz{*?  
} bkIQ?cl<at  
} p s_o:*$l  
} nI,-ftMD-|  
3Cg0^~?6-  
堆排序: X"S")BQ q  
wPr!.:MF  
package org.rut.util.algorithm.support; U^&y*gX1  
sH :_sOV*  
import org.rut.util.algorithm.SortUtil; =|IY[2^  
D()tP  
/** Ummoph7_@  
* @author treeroot /8LTM|(  
* @since 2006-2-2 7rIEpN>*  
* @version 1.0 [wM]w  
*/ \)2~o N  
public class HeapSort implements SortUtil.Sort{ 2I0Zr;\f  
[cw>; \J  
/* (non-Javadoc) 0w?G&jjNtM  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) IV|})[n*  
*/ }!jn%@_y@  
public void sort(int[] data) { sEcg;LFp  
MaxHeap h=new MaxHeap(); y#-~L-J_R  
h.init(data); (RI+4V1  
for(int i=0;i h.remove(); *iXaQuT  
System.arraycopy(h.queue,1,data,0,data.length); G>S3?jGk  
} $mut v=IO  
ZW`wA2R0   
private static class MaxHeap{ b:W x[+  
Wrs6t  
void init(int[] data){ UI74RP  
this.queue=new int[data.length+1]; 9&'HhJm  
for(int i=0;i queue[++size]=data; M Jtn)gXb  
fixUp(size); pRFlmg@/}  
} .t$1B5  
} %KW NY(m  
JjnWv7W3$  
private int size=0; 3/EJ^C  
c>L#(D\\  
private int[] queue; #P;vc{ Iq  
xs$.EY:k  
public int get() { h:{^&d a  
return queue[1]; KfV& 7yi  
} ]DLs'W;)  
& eWnS~hJ  
public void remove() { I$JyAj  
SortUtil.swap(queue,1,size--); 1|oE3  
fixDown(1); @%rj1Gn  
} F3&:KZ!V&m  
file://fixdown 3'6by!N,d  
private void fixDown(int k) { +"JQ5~7  
int j; c[;=7-+  
while ((j = k << 1) <= size) { 5 IFc"  
if (j < size %26amp;%26amp; queue[j] j++; W>J1JaO  
if (queue[k]>queue[j]) file://不用交换 /R[P sB  
break; @+; cFj  
SortUtil.swap(queue,j,k); 17yg ~  
k = j; {/K!cPp9  
}  n[  
} ?EA&kZR]  
private void fixUp(int k) { o;'-^ LJ  
while (k > 1) { -'RD%_  
int j = k >> 1; nVGWJ3  
if (queue[j]>queue[k]) /[UuHU5*R  
break; drh,=M\F  
SortUtil.swap(queue,j,k); Zl{ DqC^  
k = j; Jb]22]  
} $QJ,V~  
} ~uh,R-Q$  
hXQo>t-$  
} ANXN.V  
rwY{QBSf  
} mZ4I}_\,  
fx = %e  
SortUtil: |eH*Q%M  
a'B 5m]%  
package org.rut.util.algorithm; f^ 6da6Z  
;N!W|G  
import org.rut.util.algorithm.support.BubbleSort; bC%}1wwh  
import org.rut.util.algorithm.support.HeapSort; jQY^[A  
import org.rut.util.algorithm.support.ImprovedMergeSort; Qd"u$~ qC  
import org.rut.util.algorithm.support.ImprovedQuickSort; },vVc/  
import org.rut.util.algorithm.support.InsertSort; <O9.GHV1v  
import org.rut.util.algorithm.support.MergeSort; KAm$^N5  
import org.rut.util.algorithm.support.QuickSort; @rxfOc0J#  
import org.rut.util.algorithm.support.SelectionSort; uG 7ll5Yy  
import org.rut.util.algorithm.support.ShellSort; 'cvc\=p  
Gkz~x Qy1T  
/** b"&1l2\ A  
* @author treeroot ~A-VgBbU>_  
* @since 2006-2-2 e(Ub7L#  
* @version 1.0 T``~YoIdz  
*/ Fn*)!,)  
public class SortUtil { fg~9{1B  
public final static int INSERT = 1; (Q ~<>  
public final static int BUBBLE = 2; CO.e.:h  
public final static int SELECTION = 3; Q)l~?Fx  
public final static int SHELL = 4; Ub<^;Du5  
public final static int QUICK = 5; If%**o  
public final static int IMPROVED_QUICK = 6; )}5f'TK  
public final static int MERGE = 7; P>;uS  
public final static int IMPROVED_MERGE = 8; + u'y!@VV  
public final static int HEAP = 9; K 6HH_T  
pQOT\- bD  
public static void sort(int[] data) { C}cYG  
sort(data, IMPROVED_QUICK); 9$e6?<`(Y  
} 1JO@G3,  
private static String[] name={ ^%2S,3*0  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" qjVhBu7A  
}; HLp'^  
_U/CG<n  
private static Sort[] impl=new Sort[]{ ICXz(?a  
new InsertSort(), iXFN|ml  
new BubbleSort(), N.qS;%*o{e  
new SelectionSort(), .T }q"  
new ShellSort(), g)#.|d+  
new QuickSort(), L'$;;eM4  
new ImprovedQuickSort(), %!QY:[   
new MergeSort(), L$<(HQQ J8  
new ImprovedMergeSort(), &P3ep[]j  
new HeapSort() Ncle8=8  
}; XoqmT/P  
_ ^cFdP)8|  
public static String toString(int algorithm){ =K\.YKT  
return name[algorithm-1]; $09PZBF,i  
} O^yD b  
3QO*1P@q  
public static void sort(int[] data, int algorithm) { 5Bog\mS  
impl[algorithm-1].sort(data); #ZvDf5A  
} !BikqTM  
[^GXHE=  
public static interface Sort { X6lUFko  
public void sort(int[] data); @E@5/N6M  
} CPS1b  
z'd*z[L~  
public static void swap(int[] data, int i, int j) { (jB_uMuS  
int temp = data; tOf18V{a  
data = data[j]; cl3Dwrf?  
data[j] = temp; ~G*eJc0S:  
} T~(AXwaJ  
} 3 h~U)mg  
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:
3+5=?,请输入中文答案:八 正确答案:八