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
  • 5242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。 # U!J2240  
插入排序: S,J'Z:spf  
BhNwC[G?m  
package org.rut.util.algorithm.support; LG51e7_gFi  
n) `4*d$`  
import org.rut.util.algorithm.SortUtil; k%c ?$n"  
/** z#O{rwnl  
* @author treeroot ;9b?[G  
* @since 2006-2-2 =(zk-J<nY  
* @version 1.0 `(16_a  
*/ G.c s-f  
public class InsertSort implements SortUtil.Sort{ 3DgI.V6un  
N[=nh)m7b  
/* (non-Javadoc) 6I 2`m(5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k%uRG_  
*/ #bf^Pq'8  
public void sort(int[] data) { =(v/pLLK?  
int temp; a!wPBJJ  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); sd>#Hn  
} Ik~5j(^E-  
} J2yq|n?2gq  
} Cvi-4   
a'Aru^el  
} ~>)cY{wE_  
V8&%fxn+  
冒泡排序: wwE9|'Ok  
arDY@o~  
package org.rut.util.algorithm.support; {jr>Z"/q  
w)3LYF  
import org.rut.util.algorithm.SortUtil; /n(0nU[  
MQp1j:CK  
/** 7dxY07 yu  
* @author treeroot Z;lE-`Z*(F  
* @since 2006-2-2 J]$%1Y  
* @version 1.0 {"s9A&  
*/ ]_5C5m  
public class BubbleSort implements SortUtil.Sort{ jj.)$|&#`  
m|e!1_ :H  
/* (non-Javadoc) D*_ F@}=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) E&]S No<  
*/ :90DS_4  
public void sort(int[] data) { $g 5pKk  
int temp; *:)#'cenI  
for(int i=0;i for(int j=data.length-1;j>i;j--){ gl00$}C  
if(data[j] SortUtil.swap(data,j,j-1); _U'edK]R  
} `s@1'IG;R_  
} qAkx52v6  
} OB5(4TY  
} Cf8(J k`v|  
)]rGGNF*  
} R%}OZJ_  
-08Ys c  
选择排序: h&[!CtPm  
]uj H7T  
package org.rut.util.algorithm.support; 4AUY8Pxp  
0p&:9|'z  
import org.rut.util.algorithm.SortUtil; ])0&el3-  
L"#Tas\5  
/** *$uKg zv3  
* @author treeroot yBq4~b~[  
* @since 2006-2-2 P0UMMn\-#  
* @version 1.0 <K|_M)/9  
*/ | u36-  
public class SelectionSort implements SortUtil.Sort { IRXpk 6|  
, lT8gQ|u  
/* :9]23'Md  
* (non-Javadoc) NIQa{R/H  
* H=7dp%b"  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Mm|HA@W^  
*/ rcNM,!dZ  
public void sort(int[] data) { ^!E;+o' t  
int temp; :P;#Y7}Y$  
for (int i = 0; i < data.length; i++) { 21G] d  
int lowIndex = i; W:hR8 1ci  
for (int j = data.length - 1; j > i; j--) { E$*I.i_m  
if (data[j] < data[lowIndex]) { $Pl>T09d  
lowIndex = j; ;/ >~|@  
} G2rxr  
} SO8Ej)m  
SortUtil.swap(data,i,lowIndex); Po93&qE  
} $;"@;Lj%,  
} v]Pw]m5=U  
}evc]?1(  
} In:h%4>  
Ow+7o@$"/  
Shell排序: ]X@/0  
Pbd#Fu;  
package org.rut.util.algorithm.support; $Iv*?S"2  
j@2-^q:`  
import org.rut.util.algorithm.SortUtil; G8 f7N; D  
rTW1'@E  
/** *slZ17xg  
* @author treeroot 4hZ-^AL"(  
* @since 2006-2-2 :IbrV@gN{@  
* @version 1.0 tE<L4;t  
*/ _/ P"ulNb  
public class ShellSort implements SortUtil.Sort{ ^J\)cw  
hq(3%- 7&  
/* (non-Javadoc) !>gc!8Y'o  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !W n'Ae9  
*/ }me]?en_Ra  
public void sort(int[] data) { 5#q ^lL  
for(int i=data.length/2;i>2;i/=2){ |0A n| 18  
for(int j=0;j insertSort(data,j,i); |LiFX5!\  
} |oPqX %?  
} 7q$9\RR5  
insertSort(data,0,1); sW|u}8`  
} ;MNEe% TJ  
A7~)h}~   
/** OlMCF.W#3  
* @param data AY,6Ddw  
* @param j 1QjrL@$>15  
* @param i *E+) mB"~  
*/ CDoZv""  
private void insertSort(int[] data, int start, int inc) { Y13IrCA2  
int temp; plb'EP>e  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); G@ed2T  
} ;bkS0Vmg  
} E(8O3*=  
} =]U[   
f5mk\^  
} gd#  
%Xkynso~  
快速排序: |'Ve75 W6u  
FSc7 30rM  
package org.rut.util.algorithm.support; >L[,.}(9  
QF!K$?EU[  
import org.rut.util.algorithm.SortUtil; *l_1T4]S  
 2Np9*[C  
/** C Hyb{:<  
* @author treeroot bZ )3{  
* @since 2006-2-2 )u3<lpoTy  
* @version 1.0 ww+XE2,  
*/ bZERh:%o  
public class QuickSort implements SortUtil.Sort{ PN+,M50;1  
nLdI>c9R  
/* (non-Javadoc) };29'_.."x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k&yy_r   
*/ {K_YW  
public void sort(int[] data) { /0Zwgxt4?7  
quickSort(data,0,data.length-1); j$N`JiKM  
} |44CD3A%  
private void quickSort(int[] data,int i,int j){ ++Az~{W7  
int pivotIndex=(i+j)/2; gaTI:SKzc  
file://swap h#;fBQ]   
SortUtil.swap(data,pivotIndex,j); \AkeC6[D  
E2!;W8M  
int k=partition(data,i-1,j,data[j]); }^)M)8zS  
SortUtil.swap(data,k,j); V u;tU.  
if((k-i)>1) quickSort(data,i,k-1); &..'7  
if((j-k)>1) quickSort(data,k+1,j); /ExnW >wT  
`'+[Y;s_  
} z$%ntN#eNA  
/** |p.mA-81  
* @param data YC*S;q  
* @param i q^O{LGN  
* @param j %+>I1G  
* @return 9~Q.[ A  
*/ Z~muQ c?  
private int partition(int[] data, int l, int r,int pivot) { *Fp )/Ih  
do{ tGv4 S\  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ,i,f1XJ|  
SortUtil.swap(data,l,r); aMh2[I  
} {#Mz4s`M  
while(l SortUtil.swap(data,l,r); 5x4(5c5^  
return l; ,B!u*  
} J|,| *t  
yBs  
} 5 F H#)  
Q9FY.KUM  
改进后的快速排序: -L1{0{Z  
;Q? Qwda  
package org.rut.util.algorithm.support; UAUo)VVi"  
)v0m7L v#/  
import org.rut.util.algorithm.SortUtil; cz&FOP+!  
E xY ~.  
/** .VTHZvyn  
* @author treeroot a8A8?:  
* @since 2006-2-2 |/YT.c%  
* @version 1.0 FkKx~I:  
*/ |w:7).P  
public class ImprovedQuickSort implements SortUtil.Sort { ]U'KYrh  
Jw"'ZW#W  
private static int MAX_STACK_SIZE=4096; "sL#)<%  
private static int THRESHOLD=10; 6ZCt xs!  
/* (non-Javadoc) YI&^j2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) j/dNRleab  
*/ AGPZd9  
public void sort(int[] data) { H }</a%y  
int[] stack=new int[MAX_STACK_SIZE]; iMJjWkk  
d&.)Dw  
int top=-1; Rz*%(2Vz  
int pivot; ML Id3#Q  
int pivotIndex,l,r; E]_sl/`{od  
 5Lm ?  
stack[++top]=0; "mHSbG  
stack[++top]=data.length-1; pkBmAJb@  
/1o~x~g(b  
while(top>0){ L[##w?Xf.  
int j=stack[top--]; '1/uf;OXIH  
int i=stack[top--]; 5I t+ S+a  
O8 k$Uc  
pivotIndex=(i+j)/2; )[G5qTO  
pivot=data[pivotIndex]; H.!M_aJH  
S :9zz  
SortUtil.swap(data,pivotIndex,j); * J~N  
#Z (B4YO  
file://partition LI"ghz=F  
l=i-1; ;`s/|v  
r=j; ze!7qeW  
do{ </qXKEu`_  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); T4J (8!7  
SortUtil.swap(data,l,r); z1(rHJd  
} vY }/CBmg  
while(l SortUtil.swap(data,l,r); uK3,V0 yz  
SortUtil.swap(data,l,j); X;ijCZb3b  
5w iU4-{  
if((l-i)>THRESHOLD){ <Cn-MOoM  
stack[++top]=i; NfDg=[FN[  
stack[++top]=l-1; AdR}{:ia  
} o}Dy\UfU  
if((j-l)>THRESHOLD){ z/6eP`jj  
stack[++top]=l+1; O6l j^  
stack[++top]=j; V\X.AGc  
} vYrqZie<  
d,+d8X  
} >g8Tl`P,iN  
file://new InsertSort().sort(data); 5A:b \  
insertSort(data); 1Cp5a2{  
} oT%~)g  
/** Pou`PNvH  
* @param data ]"{K5s7  
*/ iS=} | 8"  
private void insertSort(int[] data) { qZCA16  
int temp; ZIkXy*<(  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); |V%Qp5 XJ  
} 6'+3""\  
} Y2QlK1.8V  
} l#V"14y  
~48Uch\LG:  
} MU%C_d%.  
-~]*)&  
归并排序: qmv%N  
Da)9s %_4  
package org.rut.util.algorithm.support; YYZE-{ %  
cZ%weQa#N)  
import org.rut.util.algorithm.SortUtil; =<n+AqJ%  
*siS4RX2  
/** (lTM^3 }  
* @author treeroot 7`|$uIM`  
* @since 2006-2-2 s?7g3H5#0k  
* @version 1.0 f9X*bEl9;`  
*/ / ~w\Npf0  
public class MergeSort implements SortUtil.Sort{ 5e6]v2 k  
IF$f^$  
/* (non-Javadoc) y]+i. 8[  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \C~Y  
*/ pDrM8)r  
public void sort(int[] data) { ORyFE:p$  
int[] temp=new int[data.length]; /\_0daUx  
mergeSort(data,temp,0,data.length-1); oCXBek?\  
} rRly0H  
$ R,7#7bG  
private void mergeSort(int[] data,int[] temp,int l,int r){ 31Y+bxQ  
int mid=(l+r)/2; ]'EtLFv)  
if(l==r) return ; bL]*K$  
mergeSort(data,temp,l,mid); qOqQt=ObU  
mergeSort(data,temp,mid+1,r); RU>T?2  
for(int i=l;i<=r;i++){ WENPS*0oS]  
temp=data; ZG H2  
} A +e ={-*  
int i1=l; K p ~x  
int i2=mid+1; 59F AhEg  
for(int cur=l;cur<=r;cur++){ {ajaM'x  
if(i1==mid+1) BXnSkT7  
data[cur]=temp[i2++]; oV&AJ=|\  
else if(i2>r) vp{jh-&  
data[cur]=temp[i1++]; y4w{8;Mh  
else if(temp[i1] data[cur]=temp[i1++]; t+|c)"\5h  
else (kK6=Mrf  
data[cur]=temp[i2++]; ^8ZVB.Fv  
} a=.A/;|0*  
} "z1\I\ ^  
GxuFO5wz  
} jyb/aov  
)F8G q,  
改进后的归并排序: WIa4!\Ky!  
\|L ~#{a  
package org.rut.util.algorithm.support; vxzh|uF  
TG=) KS  
import org.rut.util.algorithm.SortUtil; `lRZQ:27X  
F%UyFUz  
/** *[) b}?  
* @author treeroot {AoH  
* @since 2006-2-2 \/xWsbG\  
* @version 1.0 f-E]!\Pg  
*/ Rs$k3   
public class ImprovedMergeSort implements SortUtil.Sort { *&Np;^~  
4nN%5c~=  
private static final int THRESHOLD = 10; 9r+]V=  
3<88j&9  
/* kXFgvIpg<  
* (non-Javadoc) 1 `hj]@.]  
* /EZF5_`bT  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pd?3_yU  
*/ BA4qQCS;5  
public void sort(int[] data) { ps\A\aggML  
int[] temp=new int[data.length]; _?x*F?5=  
mergeSort(data,temp,0,data.length-1); b%IRIi&,  
} WZOi,  
p-POg%|&<  
private void mergeSort(int[] data, int[] temp, int l, int r) { ,edX;`#  
int i, j, k; )hGRq'WA=  
int mid = (l + r) / 2; :aS8%m  
if (l == r) F4xYfbwY"]  
return; H~Xi;[{7  
if ((mid - l) >= THRESHOLD) &^=6W3RD  
mergeSort(data, temp, l, mid); F *_g3K!!  
else xc7Wk&{=  
insertSort(data, l, mid - l + 1); wR@&C\}9  
if ((r - mid) > THRESHOLD) $!h21  
mergeSort(data, temp, mid + 1, r); <7NY.zvwk]  
else ae`*0wbv  
insertSort(data, mid + 1, r - mid); :P1 J>dcG  
] ?w hx &+  
for (i = l; i <= mid; i++) { 8=Xy19<;t  
temp = data; s.d }*H-o  
} d~M;@<eD  
for (j = 1; j <= r - mid; j++) { 'H+H4(  
temp[r - j + 1] = data[j + mid]; _WO*N9Iz  
} F'^6 ra9  
int a = temp[l]; ;7Cb!v1  
int b = temp[r]; [xe(FFl+  
for (i = l, j = r, k = l; k <= r; k++) { se(ZiyHp  
if (a < b) { P~HzN C  
data[k] = temp[i++]; Q(=} PF  
a = temp; h; ?=:(  
} else { rtd&WkU rD  
data[k] = temp[j--]; Xxhzzm-B  
b = temp[j]; 00X~/'!  
} Wnm?a!j5  
} a NhI<.v  
} owM3Gz%?UA  
biLx-F c  
/** }SpjB  
* @param data scZdDbL6+  
* @param l 4iMo&E<  
* @param i \Ld/'Z;w  
*/ CT(VV6I\  
private void insertSort(int[] data, int start, int len) { \X1?,gV_  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); f86h"#4  
} Gw%P5 r}Y  
} "& h;\hL  
} I<yd=#:n  
} `}<x"f7.z  
/D2 cY>  
堆排序: E_k<EQ%r  
ElLDSo@WvR  
package org.rut.util.algorithm.support; #D4gNQg@R  
H <7r  
import org.rut.util.algorithm.SortUtil; U-!+Cxjs  
r1dP9MT\8  
/** HQqnJ;ns<  
* @author treeroot 3Run.Gv\  
* @since 2006-2-2 QlT{8uw )  
* @version 1.0 *q**,_?;  
*/ av|r^zc  
public class HeapSort implements SortUtil.Sort{ \[u7y. b  
=M39I&N  
/* (non-Javadoc) l`"i'P   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) otaB$Bb  
*/ a ^wGc+  
public void sort(int[] data) { www#.D%'U  
MaxHeap h=new MaxHeap(); ^U1@ hq*u  
h.init(data); 3jH-!M5  
for(int i=0;i h.remove(); 3 ,;;C(  
System.arraycopy(h.queue,1,data,0,data.length); CRXIVver  
} BOqu$f+  
b7;`A~{9v  
private static class MaxHeap{ hdW}._  
,n )f=q*%  
void init(int[] data){ LcL|'S)  
this.queue=new int[data.length+1]; "`WcE/(  
for(int i=0;i queue[++size]=data; A6-K~z^  
fixUp(size);  M18<d1*  
} L>:YGM"sL  
} D3,9X#B=  
pYXusS7S  
private int size=0; ^&^~LKl~  
>|[ l?`  
private int[] queue; ;.dyuKlI  
woI.1e5  
public int get() { [3KP@'52k  
return queue[1]; )P>-~G2P  
} +b O]9* g]  
 NW$_w  
public void remove() { UqsJ44QEZ  
SortUtil.swap(queue,1,size--); W_JFe(=3,  
fixDown(1); rt +a/:4+  
} $Sg5xkV,a  
file://fixdown E(%_aFx>/  
private void fixDown(int k) { 9:[L WT&  
int j; 6d%V=1^F  
while ((j = k << 1) <= size) { Eu;f~ V  
if (j < size %26amp;%26amp; queue[j] j++; Tw`n3y?  
if (queue[k]>queue[j]) file://不用交换 $eqwn&$n  
break; FR5P;Yz%H  
SortUtil.swap(queue,j,k); acG4u+[ ]  
k = j; V@%:y tDf  
} O:G5n 5J  
} p0r:U< &  
private void fixUp(int k) { p1}m_  
while (k > 1) { ]|6)'L&]*s  
int j = k >> 1; yv),>4_6  
if (queue[j]>queue[k]) M9*#8>  
break; :9c[J$R4  
SortUtil.swap(queue,j,k); hW~XE{<  
k = j; 0 rge]w.X  
} Qg^Ga0Lf6  
} 3n ~n-Jo  
j*XhBWE?  
} aFfd!a" n  
l:'\3-2a  
} a%FM)/oI|T  
0-VC$)S  
SortUtil: Y:;]qoF  
]?1n-w.}r  
package org.rut.util.algorithm; IXA3G7$)  
V$OZC;4  
import org.rut.util.algorithm.support.BubbleSort; VyF|d? b  
import org.rut.util.algorithm.support.HeapSort; A3su!I2S  
import org.rut.util.algorithm.support.ImprovedMergeSort; ZjB]pG+  
import org.rut.util.algorithm.support.ImprovedQuickSort; z+~klv 3  
import org.rut.util.algorithm.support.InsertSort; }4dbS ;C<  
import org.rut.util.algorithm.support.MergeSort; 8(jUCD  
import org.rut.util.algorithm.support.QuickSort; \7\7i-Vo  
import org.rut.util.algorithm.support.SelectionSort; {D>@ZC  
import org.rut.util.algorithm.support.ShellSort; EklcnM|6  
_{k-&I  
/** n^xB_DJ~  
* @author treeroot wr`+xYuuC=  
* @since 2006-2-2 kiP-^Wan  
* @version 1.0 +xL*`fn  
*/ -% ,3qhsd  
public class SortUtil { O/{X:Ja{  
public final static int INSERT = 1; D~^P}_e.  
public final static int BUBBLE = 2; ,JU3 w  
public final static int SELECTION = 3; Q"(*SA+-|  
public final static int SHELL = 4; ORdS|y;:  
public final static int QUICK = 5; d~hN`ff  
public final static int IMPROVED_QUICK = 6; Vs"1:gi&  
public final static int MERGE = 7; gt>k]0  
public final static int IMPROVED_MERGE = 8; WR<,[*Mv^  
public final static int HEAP = 9; OZ SM2~  
c04;2gR  
public static void sort(int[] data) { ;1[a*z<l&s  
sort(data, IMPROVED_QUICK); $yoIz.?V  
} &%=]lP]  
private static String[] name={ *mVQN1  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" s^vw]D  
}; y' r I1eF  
4S 7#B  
private static Sort[] impl=new Sort[]{ S A\_U::T  
new InsertSort(), azCod1aL{  
new BubbleSort(), m|by^40A(  
new SelectionSort(), pl4:>4l/  
new ShellSort(), +9fQ YJBA  
new QuickSort(), f_m~_`m  
new ImprovedQuickSort(), k x?m "a%  
new MergeSort(), S}}L& _  
new ImprovedMergeSort(), # 9@K  
new HeapSort() lK2=[%,~  
}; ZR[6-  
)?$zY5  
public static String toString(int algorithm){ X{BS]   
return name[algorithm-1]; \r5L7y$9 h  
} UzKB"Q  
N'@E^ rYc  
public static void sort(int[] data, int algorithm) { 6Qx[W>I  
impl[algorithm-1].sort(data);  &e%eIz  
} a<W.}0ZY  
#*~3gMI{=  
public static interface Sort { =3H*%  
public void sort(int[] data); $p)e.ZMgE  
} \; FE@  
pH/_C0e`7  
public static void swap(int[] data, int i, int j) { 8bf~uHAr  
int temp = data; ^U.t5jj  
data = data[j]; PHh4ZFl]_I  
data[j] = temp; ']__V[  
} o+% ($p  
} C(J+tbk  
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:
3+5=?,请输入中文答案:八 正确答案:八