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
  • 5229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。 ^hiIMqY_{`  
插入排序: hg4d]R,  
tpPP5C{  
package org.rut.util.algorithm.support; RUco3fZ   
zZp0g^;.?  
import org.rut.util.algorithm.SortUtil; Di) %vU  
/** 4&N#d;ErC  
* @author treeroot Pw+PBIGn4  
* @since 2006-2-2 JbX"K< nQ  
* @version 1.0 [J{\Ke0<e1  
*/ Y &wtF8  
public class InsertSort implements SortUtil.Sort{ 1K{u>T  
# 0kVhx7%  
/* (non-Javadoc) Is&0h|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >-oB%T  
*/ KTtB!4by  
public void sort(int[] data) { 8L1 vt Yz  
int temp; AS5' j  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 2S,N9 (7  
} R RRF/Z;))  
} C-h9_<AwJQ  
} ;YN`E  
X(Z~oGyg  
} b'r</ncZ  
LY:%k|L9  
冒泡排序: #z6[ 8B  
G`D rY;  
package org.rut.util.algorithm.support; UlP2VKM1&  
S3oyx#R('O  
import org.rut.util.algorithm.SortUtil; X<8?>#  
`)~]3zmG  
/** p>oC.[:4a  
* @author treeroot {&dbxj-'  
* @since 2006-2-2 "%peYNZ&%  
* @version 1.0 }uR[H2D`L  
*/ R`5g#  
public class BubbleSort implements SortUtil.Sort{ H2kib4^i  
z][hlDv\j  
/* (non-Javadoc) P aD6||1F  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (fA>@5n  
*/ /aTW X  
public void sort(int[] data) { %plu]^Vy  
int temp; X8 $Y2?<  
for(int i=0;i for(int j=data.length-1;j>i;j--){ +P! ibHfP  
if(data[j] SortUtil.swap(data,j,j-1); I|n? 32F  
} =y^`yv 3  
} baQORU=X  
} /Fk]>|*  
} ~%chF/H  
_"%hcCMw  
} 6.Jvqn  
& zR\Rmpt  
选择排序: _sqj~|K  
&L[i"1a  
package org.rut.util.algorithm.support; @vZeye  
9epMw-)k  
import org.rut.util.algorithm.SortUtil; 6b2Z}B  
|`|#-xu  
/** YjCHKI"e  
* @author treeroot q@Aw]Kh  
* @since 2006-2-2 o;TS69|D  
* @version 1.0 pKtN$Fd  
*/ J8'1 ~$6  
public class SelectionSort implements SortUtil.Sort { Kpg?' !I  
CM%Rz-c  
/* d88Dyzz  
* (non-Javadoc) H@xHkqan  
* v!`:{)2C  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N_^PoX935O  
*/ G{.[o6>  
public void sort(int[] data) { ))%f"=:wt  
int temp; I A%ZCdA;  
for (int i = 0; i < data.length; i++) { A` ~R\j  
int lowIndex = i; skm~~JM^  
for (int j = data.length - 1; j > i; j--) { 4^Ss\$*  
if (data[j] < data[lowIndex]) { GaCRo7  
lowIndex = j; 8NkyT_\  
} u`CHM:<<?  
} w}]BJ<C  
SortUtil.swap(data,i,lowIndex); #iKPp0`K*  
} BOOb{kcg  
} (|\%)v H-  
C$0rl74Wi  
} 0q4P hxR`e  
0q28Ulv9  
Shell排序: *sQ.y {  
&MZ{B/;;H  
package org.rut.util.algorithm.support; bf=!\L$  
KE.O>M ,I.  
import org.rut.util.algorithm.SortUtil; U!{~L$S  
.-'_At4g  
/** NCdDG  
* @author treeroot -%Rw2@vU  
* @since 2006-2-2 v#lrF\G5  
* @version 1.0 ZZw2m@T>  
*/ 6FYL},.R  
public class ShellSort implements SortUtil.Sort{ <0VC`+p<)  
1N_T/I8_F  
/* (non-Javadoc) O{7rIy  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7}I';>QH  
*/ 6j8\3H~  
public void sort(int[] data) { 8.G<+.  
for(int i=data.length/2;i>2;i/=2){ 1Ys)b[:  
for(int j=0;j insertSort(data,j,i); q*Oj5;  
} ?S;z!) H)P  
} <:!E'WT#f  
insertSort(data,0,1);  ,)uW`7  
} g:O/~L0Xb  
=0L%<@yA  
/** `YUeVz>q?  
* @param data *8Su:=*b  
* @param j w/ ^_w5  
* @param i b*W,8HF4,  
*/ F Uz1P  
private void insertSort(int[] data, int start, int inc) { ^q_wtuQ  
int temp; |"PS e~ u  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); GSs?!BIC  
} V?Q45t Ae  
} 3ZC@q #R A  
} ,Ne9x\F  
(t){o> l  
} # > I_  
:@@`N_2?  
快速排序: =jKu=!QPq  
15VvZ![$V  
package org.rut.util.algorithm.support; _u""v   
Yecdw'BW?  
import org.rut.util.algorithm.SortUtil; {sxdDl  
)3A+Ell`  
/** (-Q~@Q1  
* @author treeroot o~9sO=-O  
* @since 2006-2-2 W[k rq_c-  
* @version 1.0 f[vm]1#  
*/ Y}xM&%  
public class QuickSort implements SortUtil.Sort{ 7NT0]j(w-  
\[qxOZ{  
/* (non-Javadoc) %y\5L#T!>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [MQ* =*  
*/ kOdA8X RY  
public void sort(int[] data) { "uP*pR^  
quickSort(data,0,data.length-1); !4!qHJISa  
} Q>$lf.)  
private void quickSort(int[] data,int i,int j){ 1ni72iz\  
int pivotIndex=(i+j)/2; FA>.1EI  
file://swap *- ~GVe  
SortUtil.swap(data,pivotIndex,j); +8W5amk.P|  
R>Dr1fc}  
int k=partition(data,i-1,j,data[j]); vz#-uw,O:  
SortUtil.swap(data,k,j); .%dGSDru  
if((k-i)>1) quickSort(data,i,k-1);  Lagk   
if((j-k)>1) quickSort(data,k+1,j); Pr>05lg  
=f H5 r_n  
} x4PzP  
/** bI3GI:hp  
* @param data i#^YQCy  
* @param i FZ}^)u}o  
* @param j K2e68GU  
* @return ]'7Au]Us`  
*/ E|>-7k")  
private int partition(int[] data, int l, int r,int pivot) {   NV-l9  
do{ CJh,-w{wJ"  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); /}2Y-GOU  
SortUtil.swap(data,l,r); F+*fim'NK  
} 4!OGNr$V@  
while(l SortUtil.swap(data,l,r); pEz^z9  
return l; WtKKdL  
} w N`Nj m9!  
FfxD=\  
} r~JGs?GH  
)t3`O$J  
改进后的快速排序: C-)d@LWI  
PH&Qw2(Sx  
package org.rut.util.algorithm.support; tl{{Vc[  
>itNa.K  
import org.rut.util.algorithm.SortUtil; Z9NND  
3bXfR,U  
/** 7.Z-  
* @author treeroot *!TQC6b$  
* @since 2006-2-2 @%*2\8}C!  
* @version 1.0 A`JE(cIz3  
*/ 2LR y/ah  
public class ImprovedQuickSort implements SortUtil.Sort { )iiaT~ ]  
I^( pZ9  
private static int MAX_STACK_SIZE=4096; ,?Ie!r$6  
private static int THRESHOLD=10; l5=ih9u  
/* (non-Javadoc) bcvm]aPu  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ItvcN  
*/ yH]Q;X '  
public void sort(int[] data) { qy.$5-e:[9  
int[] stack=new int[MAX_STACK_SIZE]; UCjx   
JIw?]xa*  
int top=-1; iLJ@oM;2  
int pivot; yGNpx3H  
int pivotIndex,l,r; F!g1.49""  
rNJU & .]  
stack[++top]=0; v0!|TI3s  
stack[++top]=data.length-1; !hM`Oe`S  
;-JFb$m  
while(top>0){ lw gwdB  
int j=stack[top--]; E:M,nSc)53  
int i=stack[top--]; ]\ !ka/%  
/*>}y$  
pivotIndex=(i+j)/2; P_0[spmFU  
pivot=data[pivotIndex]; 9xj }<WM  
g 8uq6U  
SortUtil.swap(data,pivotIndex,j); j0X^,ot@m  
F .Zk};lb  
file://partition Z3YKG{g  
l=i-1; kaQNcMcq  
r=j; boCi*]  
do{ 2A@oa9  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); DBsoa0w  
SortUtil.swap(data,l,r); u-y?i`  
} +ctU7 rVy  
while(l SortUtil.swap(data,l,r); ) 3"!Q+  
SortUtil.swap(data,l,j); X<.l(9$  
0,)2\`99#k  
if((l-i)>THRESHOLD){ VD@$y^!H  
stack[++top]=i; <uS/8MP{  
stack[++top]=l-1; 3Mm_xYDud  
} vV$t`PEY  
if((j-l)>THRESHOLD){ LQr!0p.i"  
stack[++top]=l+1; RCYv2=m>Q  
stack[++top]=j; 6nE/8m  
} ?D2a"a$^  
<XG]aYBR  
} 9 Xl#$d5  
file://new InsertSort().sort(data); 6{^\7`  
insertSort(data); +D4m@O  
} CmbgEGIh[a  
/** #9r}Kr=P  
* @param data 2)}*'_E9  
*/ zSD_t  
private void insertSort(int[] data) { %{4 U\4d@'  
int temp; :<B_V<  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 1U.X[}e  
} wT- <#+L\  
} jUNt4  
} J ;z`bk^  
=O"]e/CfO  
} B0gD4MX/  
@iV-pJ-  
归并排序: E9I08AODS  
2cQ~$  
package org.rut.util.algorithm.support; rjWtioZEa  
~!2fUewEu  
import org.rut.util.algorithm.SortUtil; b?KdR5  
T]z(>{  
/** /;Hqv`X7  
* @author treeroot N9#xTX  
* @since 2006-2-2 w.aEc}@(^  
* @version 1.0 DpA)Vdj  
*/ o!~XYEXvUa  
public class MergeSort implements SortUtil.Sort{ '"\n,3h  
t bR  
/* (non-Javadoc) elhP!"G  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) aACPyfGQ  
*/ a?nK|Q=e  
public void sort(int[] data) { YJHb\Cf.  
int[] temp=new int[data.length]; `Rfe*oAf  
mergeSort(data,temp,0,data.length-1); 5NN;Fw+  
} (!5Pl`:j"  
\/j,  
private void mergeSort(int[] data,int[] temp,int l,int r){ s+fxv(,"c  
int mid=(l+r)/2; <yEApWd;  
if(l==r) return ; 7<)  
mergeSort(data,temp,l,mid); &xB9;v3  
mergeSort(data,temp,mid+1,r); xrBM`Bj0@  
for(int i=l;i<=r;i++){ Kf[.@_TD<1  
temp=data; q'+ARW48  
} T-ST M"~%  
int i1=l; ]nebL{}5  
int i2=mid+1; Rrry;Hr  
for(int cur=l;cur<=r;cur++){ :w5g!G?z  
if(i1==mid+1) oVZzvK(zR  
data[cur]=temp[i2++]; K n1;=k  
else if(i2>r) L)\<7  
data[cur]=temp[i1++]; 'Z.C&6_  
else if(temp[i1] data[cur]=temp[i1++]; Zqe$S +u  
else ?yj g\S?L  
data[cur]=temp[i2++]; !LpjTMYs  
} fgj$ u  
} /0gr?I1wr7  
2bw) , W  
} xSM1b5=Pu  
nj;3U^  
改进后的归并排序: r0[<[jEh  
c;"e&tW  
package org.rut.util.algorithm.support; \MmOI<Hd-  
eHs38X  
import org.rut.util.algorithm.SortUtil; T{^mh(3/"  
Qb)c>r  
/** :NWIUN  
* @author treeroot /*BU5  
* @since 2006-2-2 c u";rnj  
* @version 1.0 2 yANf  
*/ :/5G Hfyj  
public class ImprovedMergeSort implements SortUtil.Sort { 3V^5 4_  
/({oN1X>i  
private static final int THRESHOLD = 10; @XtrC|dkkE  
_ {#K  
/* M6Xzyt|  
* (non-Javadoc) 6QT&{|q=  
* }ff^^7_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >jmHe^rH  
*/ LVdR,'lS  
public void sort(int[] data) { mejNa(D ^  
int[] temp=new int[data.length]; ~4FzA,,  
mergeSort(data,temp,0,data.length-1); wL:7G  
} g| 3bM  
{j`8XWLZZN  
private void mergeSort(int[] data, int[] temp, int l, int r) { L;M@]  
int i, j, k; s1::\&`za  
int mid = (l + r) / 2; )i:*r8*~  
if (l == r) O#[bNLV  
return; | Z7 j s"  
if ((mid - l) >= THRESHOLD) *JFkqbf  
mergeSort(data, temp, l, mid); ZQKo ]Kdr  
else JM/\n 4ea:  
insertSort(data, l, mid - l + 1); &0bq3JGW  
if ((r - mid) > THRESHOLD) "HqmS  
mergeSort(data, temp, mid + 1, r); zvq}7,  
else OS<GAA0  
insertSort(data, mid + 1, r - mid); Z]DZ:dF  
=ca[*0^Z7  
for (i = l; i <= mid; i++) { yO@1#  
temp = data; m6K7D([f  
} 2NjgLXP  
for (j = 1; j <= r - mid; j++) { a]5y CBm  
temp[r - j + 1] = data[j + mid]; zd$?2y8  
} Hu6Qr  
int a = temp[l]; . IY@Q  
int b = temp[r]; ey9hrRMR  
for (i = l, j = r, k = l; k <= r; k++) { Vfk"}k/do  
if (a < b) { J[Mj8ee#  
data[k] = temp[i++]; Ev3'EA~`  
a = temp; C:^ :^y  
} else { t$t'{*t( T  
data[k] = temp[j--]; ND.(N'/O  
b = temp[j]; I9xu3izAmR  
} (b[=~Nh'  
} owA8hGF  
} C<9GdN  
+p jB/#4  
/** J> ,w},`  
* @param data *3={s"a.(  
* @param l v_U/0 0  
* @param i &XI9%h9|  
*/ -^`s#0( y^  
private void insertSort(int[] data, int start, int len) { _](y<O^9yO  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); b5]<!~Fv:`  
} T;{}bc&I  
} L.-qTh^P  
} AsuugcN*  
} z(.,BB[  
^["D>@yIR  
堆排序: G~u$BV'  
nr&|  
package org.rut.util.algorithm.support; wexX|B^u  
[Rq|;p  
import org.rut.util.algorithm.SortUtil; II _CT=  
XA>uCJf  
/** rB]2qk`/'  
* @author treeroot ~rjK*_3/  
* @since 2006-2-2 tQT<1Q02i  
* @version 1.0 baTd;`Pn  
*/ lg )xQV  
public class HeapSort implements SortUtil.Sort{ WEG!;XZ  
9mXmghoCO  
/* (non-Javadoc) vyWx{ @  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jz;{,F  
*/ FwB xag:u  
public void sort(int[] data) { <v_Wh@m  
MaxHeap h=new MaxHeap(); rc>}3?o  
h.init(data); Tyaqa0  
for(int i=0;i h.remove(); @m%B>X28F  
System.arraycopy(h.queue,1,data,0,data.length); !UP B4I  
} WnOYU9 ;%  
wi.E$R ckD  
private static class MaxHeap{ jjEu  
dG~U3\!  
void init(int[] data){ _PC<Td>nm  
this.queue=new int[data.length+1]; $}S0LZ_H  
for(int i=0;i queue[++size]=data; e8:O2!HW  
fixUp(size); @44*<!da  
} jG& 8`*|*  
} P<[) qq@;  
@~7au9.V=X  
private int size=0; =2rdbq6R  
@Ss W  
private int[] queue; v;?W|kJ.u  
uhaHY`w  
public int get() { T\4>4eX-  
return queue[1]; _^RN$4.R>  
} O#J7GbrHO  
%$)Sz[=  
public void remove() { LB$0'dZU  
SortUtil.swap(queue,1,size--); yD!GgnW  
fixDown(1); 7iv g3*  
} ER&\2,fZ  
file://fixdown Ji=`XsV  
private void fixDown(int k) { fn7?g  
int j; #a|r ^%D  
while ((j = k << 1) <= size) { o,J8n;"l  
if (j < size %26amp;%26amp; queue[j] j++; V^n=@CZT9C  
if (queue[k]>queue[j]) file://不用交换 %)dp a  
break; x+'Ea.^  
SortUtil.swap(queue,j,k); kDQE*o  
k = j; l$HBYA\Qh  
} /']`}*d  
} &ns??:\+T  
private void fixUp(int k) { ?/,V{!UTtq  
while (k > 1) { , .=7{y~  
int j = k >> 1; V}2[chbl  
if (queue[j]>queue[k]) Lq6nmjL  
break; ~SA>$  
SortUtil.swap(queue,j,k); #1}%=nAsi  
k = j; @'hkU$N)  
} 6Qz=g t%I=  
} [?,+DY  
#\xy,C'Y  
} 4v5qK  
4pcIH5)z  
} u~'_Uqp  
p R`nQM-D  
SortUtil: d:]ZFk_*  
{m,LpI0wG  
package org.rut.util.algorithm; >8vq`,e  
CSWA/#&8>  
import org.rut.util.algorithm.support.BubbleSort; &i`(y>\  
import org.rut.util.algorithm.support.HeapSort; wF6a*b@v  
import org.rut.util.algorithm.support.ImprovedMergeSort; # X{lV]Z  
import org.rut.util.algorithm.support.ImprovedQuickSort; [(8s\>T  
import org.rut.util.algorithm.support.InsertSort; <5FGL96  
import org.rut.util.algorithm.support.MergeSort; CL(D&8v8~  
import org.rut.util.algorithm.support.QuickSort; ||7x51-yj  
import org.rut.util.algorithm.support.SelectionSort; mB bGj3u;  
import org.rut.util.algorithm.support.ShellSort; mL;oR4{  
,]9p&xu  
/** 4/S3hH  
* @author treeroot mmNn,>AO!  
* @since 2006-2-2 pA@R,O>zr  
* @version 1.0 rT4qx2u  
*/ g*4^HbVxt  
public class SortUtil { _IxYnm`pc  
public final static int INSERT = 1; awQB0ow'$P  
public final static int BUBBLE = 2; 28}L.>5k  
public final static int SELECTION = 3; 8yZs>Og?  
public final static int SHELL = 4; rJ6N'vw>  
public final static int QUICK = 5; (X2[}K  
public final static int IMPROVED_QUICK = 6; XA69t2J~F  
public final static int MERGE = 7; Ne1W!0YLK  
public final static int IMPROVED_MERGE = 8; W ,]Ua]  
public final static int HEAP = 9; dd6l+z  
ka_R|x G\  
public static void sort(int[] data) { dg0WH_#  
sort(data, IMPROVED_QUICK); ,K&L/*  
} }C=+Tn  
private static String[] name={ :2A-;P4  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ?c fFJl  
}; nx{X^oc8e  
rC/z8m3z  
private static Sort[] impl=new Sort[]{ oHV!>K_D  
new InsertSort(), {p(6bsn_#]  
new BubbleSort(), NVf_#p"h  
new SelectionSort(), 5GJa+St?  
new ShellSort(), dg(sRTi{  
new QuickSort(), ^p%3@)&  
new ImprovedQuickSort(), BGu<1$ G  
new MergeSort(), z<. 6jx@  
new ImprovedMergeSort(), uSxldc  
new HeapSort() \x8'K  
}; }tH_YF}u  
HMKogGTTo  
public static String toString(int algorithm){ x IL]Y7HWM  
return name[algorithm-1];  Qk.[#  
} 9!Fg1 h=  
S1i~r+jf  
public static void sort(int[] data, int algorithm) { @'J[T:e  
impl[algorithm-1].sort(data); #%z@yg  
} 7$"5qJ{s  
[ zCKJR  
public static interface Sort { A- #c1KU!  
public void sort(int[] data); ,C'mE''x  
} `yRt?UQRS  
rPifiLl A>  
public static void swap(int[] data, int i, int j) { |Ur$H!oe?'  
int temp = data; ]<_v;Q<t  
data = data[j]; s|:j~>53  
data[j] = temp;  bWZzb&  
} eQ =6< ^KZ  
} 9A\\2Zz6F  
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
如果您提交过一次失败了,可以用”恢复数据”来恢复帖子内容
认证码:
验证问题:
10+5=?,请输入中文答案:十五