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
  • 8197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。 ]cruF#`%  
插入排序: wdZ/Xp9]  
]:\dPw`A  
package org.rut.util.algorithm.support; v.ui!|c  
3k?X-|O8AZ  
import org.rut.util.algorithm.SortUtil; Q5_o/wk  
/** FCn_^l)EA  
* @author treeroot l lsfTrp  
* @since 2006-2-2 [fIg{Q  
* @version 1.0 Tac$LS\Q  
*/ 8sCv]|cn  
public class InsertSort implements SortUtil.Sort{ <Ok3FE.K  
CWS4lx  
/* (non-Javadoc) r"R#@V\'1b  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) dq[xwRU1  
*/ .6'qoo_N  
public void sort(int[] data) { 8&aq/4:q0  
int temp; \'bzt"f$j  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); l/awS!Q/nF  
} ?I@W:#>o  
} tNX|U:Y*  
} m%e68c  
@|%2f@h  
} IB7E}56l  
^v`\x5"Vp  
冒泡排序: C73 kJa  
4_cqT/  
package org.rut.util.algorithm.support; # 4PVVu<  
!I Qck8Y  
import org.rut.util.algorithm.SortUtil; N*&1GT#9  
8pgEix/M5o  
/** }U9G    
* @author treeroot ^]-6u:J!  
* @since 2006-2-2 /~f'}]W  
* @version 1.0 Oo% d]8W  
*/ %-0t?/>  
public class BubbleSort implements SortUtil.Sort{ A$:U'ZG_  
w G<yBI0  
/* (non-Javadoc) 5N&?KA-  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) xX4N4vb  
*/ >s?S+W[L  
public void sort(int[] data) { hFl^\$Re  
int temp; Fun^B;GA:  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ';=O 0)u  
if(data[j] SortUtil.swap(data,j,j-1); %Qdn  
} q(2'\ _`u  
} 8eHyL  
} 4Ic*9t3  
} vTzlwK\#1  
7Da`   
} 9c :cw  
^qD$z=z-  
选择排序: *6DB0X_-}  
`, Tz Q  
package org.rut.util.algorithm.support; <;Zmjeb+#  
<T|3`#o0  
import org.rut.util.algorithm.SortUtil; Hn+~5@.  
\Et3|Iv  
/** i5Yb`Z[Y  
* @author treeroot }oGA-Qc}B  
* @since 2006-2-2 aH/ k Ua  
* @version 1.0 V/I<g  
*/ 8i#2d1O  
public class SelectionSort implements SortUtil.Sort { O5nD+qTQ#  
jQ^|3#L\  
/* 54R#W:t  
* (non-Javadoc) '=8d?aeF  
* Doyx[zZ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "8jf81V*  
*/ CSq4x5!_7>  
public void sort(int[] data) { GqaCj^2f  
int temp; c?[I?ytl  
for (int i = 0; i < data.length; i++) { Jgd'1'FOs  
int lowIndex = i; dV$gB<iS  
for (int j = data.length - 1; j > i; j--) { ywm8N%]v  
if (data[j] < data[lowIndex]) { 9u}Hmb  
lowIndex = j; SdxDa  
} ryUQU^v  
} peuZ&yK+"  
SortUtil.swap(data,i,lowIndex); .p]RKS=(:  
} vJc-6EO  
} PB`Y g  
F]]]y5t  
} n QZwC  
D_^ nI:  
Shell排序: 4,gK[ dc  
e95Lo+:f  
package org.rut.util.algorithm.support; j<jN05p  
jaMjZp;{(  
import org.rut.util.algorithm.SortUtil; Tc &z:  
A,hJIe  
/** Ed,~1GanY  
* @author treeroot ~{B7 k:  
* @since 2006-2-2 QP8Ei~  
* @version 1.0 j9 4=hJVKi  
*/ \[_t]'p  
public class ShellSort implements SortUtil.Sort{ _] sn0rX  
g:D>.lKd  
/* (non-Javadoc) wyj{zWRJp  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) OXSmt DvJ  
*/ q#ClnG*  
public void sort(int[] data) { D] jz A x  
for(int i=data.length/2;i>2;i/=2){ FR4QUk  
for(int j=0;j insertSort(data,j,i); NAQAU *yP  
} *,8^@(th  
} G"U9E5O  
insertSort(data,0,1); >G*eNn  
} ," Wr"  
RJ ||}5  
/** }{qZ[/JwqN  
* @param data wh\}d4gN  
* @param j gk[aM~p  
* @param i ]&xk30  
*/ EQyC1j  
private void insertSort(int[] data, int start, int inc) { { MSkHf=  
int temp; 4Lh!8g=/  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ~u!|qM  
} EC6DW=  
} ]kG"ubHV?h  
} O=&0H|B  
7>|J8*/Nd  
} S)k*?dQ##R  
KRLQ #,9  
快速排序: `H_3Uc  
f/NH:1)y  
package org.rut.util.algorithm.support; w%VU/6~  
"XKy#[d2  
import org.rut.util.algorithm.SortUtil; ?m=N]!n  
L9 \1+rq  
/** I^]2K0+x x  
* @author treeroot axRV:w;E<  
* @since 2006-2-2 eV"h0_ox  
* @version 1.0  u\x}8pn  
*/ *@r/5pM2}  
public class QuickSort implements SortUtil.Sort{ e *(!^Q1  
/y#f3r+*2  
/* (non-Javadoc) bv9]\qC]T<  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  $s c  
*/ r CHl?J  
public void sort(int[] data) { gQelD6c  
quickSort(data,0,data.length-1); d(x\^z  
} kr5">"7  
private void quickSort(int[] data,int i,int j){ "a>q`RaIQ"  
int pivotIndex=(i+j)/2; hh)`645=x  
file://swap nQtWvT  
SortUtil.swap(data,pivotIndex,j); KKPh~ThC  
`$<.pOm  
int k=partition(data,i-1,j,data[j]); 9y8&9<#  
SortUtil.swap(data,k,j); 3{^9]7UC  
if((k-i)>1) quickSort(data,i,k-1); n;Q7X>-f8`  
if((j-k)>1) quickSort(data,k+1,j); :&rt)/I  
|=ba9&q  
} m6K}|j  
/** _LUhZlw  
* @param data x0D*U?A  
* @param i n;C :0  
* @param j xJvmhN/c  
* @return |A9F\A->4  
*/ d-ZJL6-  
private int partition(int[] data, int l, int r,int pivot) { ~i{(<.he  
do{ AW'0,b`v  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); _QE qk@ql  
SortUtil.swap(data,l,r); =tn)}Y.<e  
} T#Z^s~7&I  
while(l SortUtil.swap(data,l,r); w"|L:8  
return l; 9dLV96  
} )5JFfp)#  
vjCu4+w($Z  
} TR`U-= jH,  
O`\;e>!t  
改进后的快速排序: EhvX)s  
P {jbl!UD7  
package org.rut.util.algorithm.support; [`[|l  
~2N"#b&J  
import org.rut.util.algorithm.SortUtil; P%VSAh\|n  
4G0m\[Du  
/** [;yOBF  
* @author treeroot h0f;F@I  
* @since 2006-2-2 o4,6.1}  
* @version 1.0 [Ek7b *  
*/ , WYPU  
public class ImprovedQuickSort implements SortUtil.Sort { 70nqD>M4  
n\D&!y[]F  
private static int MAX_STACK_SIZE=4096; ~&{S<Wl  
private static int THRESHOLD=10; 1#2 I  
/* (non-Javadoc) ncdKj}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )m)-o4c  
*/ g2ixx+`?|:  
public void sort(int[] data) { m,w A:o$'  
int[] stack=new int[MAX_STACK_SIZE]; s`8= 3]w  
5m 4P\y^a  
int top=-1; gO-  _  
int pivot; =v&hWjP  
int pivotIndex,l,r; i$#;Kpb`^  
=BAr .m+"  
stack[++top]=0; KYI/  
stack[++top]=data.length-1; Eyqa?$R  
CwzZ8.o$i  
while(top>0){ tw/dD +  
int j=stack[top--]; p27~>xQ  
int i=stack[top--]; ()?(I?II  
lgy <?LI\  
pivotIndex=(i+j)/2; E CuH%b^,  
pivot=data[pivotIndex]; ^ VyKd  
7Q9 w?y~c  
SortUtil.swap(data,pivotIndex,j); .! 3|&V'<  
&PHTpkaam  
file://partition 4E+e}\r:6  
l=i-1; d&Zpkbh"  
r=j; G>}255qY  
do{ ;ef}}K  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Pmx -8w  
SortUtil.swap(data,l,r); Mfuv0P~  
} JPHL#sKyz  
while(l SortUtil.swap(data,l,r); Ge@{_  
SortUtil.swap(data,l,j); Dml;#'IF3  
u c)eil  
if((l-i)>THRESHOLD){ EME|k{W  
stack[++top]=i; d7 y[0<xM  
stack[++top]=l-1; RbnVL$c  
} fTec  
if((j-l)>THRESHOLD){ vh%B[brUJ  
stack[++top]=l+1; eo?bL$A[s  
stack[++top]=j; t =iIY`Md%  
} O0v}43J [  
.~;\eW[  
} Sz`,X0a  
file://new InsertSort().sort(data); ,&.!?0+  
insertSort(data); 1CZgb   
} "&u@d~`-n  
/** /{_:{G!Q0  
* @param data IEi^kJflU  
*/ K69'6?#  
private void insertSort(int[] data) { JH9J5%sp  
int temp; C< tl/NC  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); {JT&w6Jz  
} 7JH6A'&  
} qEOhwrh  
} \M^bD4';>  
U8?mc  
} {VRf0c  
g! |kp?  
归并排序: J*M>6Q.)  
k y7Gwc  
package org.rut.util.algorithm.support; N4!O.POP  
H1 ./x6Hr  
import org.rut.util.algorithm.SortUtil; ZY+qA  
*g2x%aZWbG  
/** I\ob7X'Xu!  
* @author treeroot {EQOP]  
* @since 2006-2-2 u*`GiZAO  
* @version 1.0 )ez9"# MH'  
*/ :"c*s4  
public class MergeSort implements SortUtil.Sort{ ~f98#43  
/U9"wvg  
/* (non-Javadoc) 46h<,na?,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;e*!S}C,  
*/ " H\k`.j  
public void sort(int[] data) { zrb}_  
int[] temp=new int[data.length]; NBGH_6DROw  
mergeSort(data,temp,0,data.length-1); + ePS14G  
} S,he6zS  
7kE n \  
private void mergeSort(int[] data,int[] temp,int l,int r){ 5$k:t  
int mid=(l+r)/2; a:w#s}bL  
if(l==r) return ; ? =Kduef  
mergeSort(data,temp,l,mid); G 3ptx! D  
mergeSort(data,temp,mid+1,r); JWxwJex  
for(int i=l;i<=r;i++){ NzvXN1_%  
temp=data;  @q) d  
} 7%M_'P4 V  
int i1=l; ckCE1e>s  
int i2=mid+1; [ 4)F f  
for(int cur=l;cur<=r;cur++){ `ERz\`d~Y;  
if(i1==mid+1) tCt#%7J;a  
data[cur]=temp[i2++]; abVmkdP_s  
else if(i2>r) ?:0Jav  
data[cur]=temp[i1++]; ~D>p0+-c  
else if(temp[i1] data[cur]=temp[i1++]; $ I?"lky  
else p!%pP}I  
data[cur]=temp[i2++]; y6BAH  
} 9\(| D#  
} Q7CsJzk~)  
5z)~\;[ -  
} X:{!n({r=  
WcGS9`m/  
改进后的归并排序: !&E-}}<  
I> $&-i  
package org.rut.util.algorithm.support; 8z\xrY  
E]r?{t`]  
import org.rut.util.algorithm.SortUtil; GQ ;;bcj&  
wMN]~|z>  
/** A=0'Ks  
* @author treeroot BZ^}J!Q'*  
* @since 2006-2-2 .=; ;  
* @version 1.0 lp8v0e4  
*/ fc>L K7M  
public class ImprovedMergeSort implements SortUtil.Sort { A3*!"3nU  
2X&qE}%k S  
private static final int THRESHOLD = 10; |y!A&d=xYn  
^LLzZnkcZ  
/* xgtR6E^k  
* (non-Javadoc) /Z4et'Lo  
* HxI" 8A  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) TD_Oo-+\  
*/ V(*(F7+  
public void sort(int[] data) { /qw.p#  
int[] temp=new int[data.length]; f%hEnZv  
mergeSort(data,temp,0,data.length-1); =Fl^`*n  
} u]@['7  
NGWxN8P6  
private void mergeSort(int[] data, int[] temp, int l, int r) { RG`1en  
int i, j, k; .N(p=9  
int mid = (l + r) / 2; |Q>IrT  
if (l == r) *{{89E>wC  
return; 9cm#56  
if ((mid - l) >= THRESHOLD) T[j,UkgGo  
mergeSort(data, temp, l, mid); &+R?_Ooibk  
else Ga'swP=hf  
insertSort(data, l, mid - l + 1); rVsJ`+L  
if ((r - mid) > THRESHOLD) p()xz  
mergeSort(data, temp, mid + 1, r); cN9t{.m  
else n'w.; q  
insertSort(data, mid + 1, r - mid); nFs(?Rv*  
;A!BVq  
for (i = l; i <= mid; i++) { OZ!^ak  
temp = data; 7VI*N)OZ8  
} {]|J5Dgfe  
for (j = 1; j <= r - mid; j++) { -Y;3I00(  
temp[r - j + 1] = data[j + mid]; ~e.L.,4QZ8  
} G*v,GR  
int a = temp[l]; WMg~Y"W  
int b = temp[r]; Z EO WO  
for (i = l, j = r, k = l; k <= r; k++) { 2GStN74Xr  
if (a < b) { W*w3 [_"sr  
data[k] = temp[i++]; {FTqu.  
a = temp; HUOj0T  
} else { C{wEzM :  
data[k] = temp[j--]; pY$Q  
b = temp[j]; wH6aAV~1  
} RzusNS  
} ei5~&  
} uRe'%?W  
T9q-,w/j;  
/** &YeA:i?  
* @param data &]-DqK7  
* @param l s(roJbJ_;  
* @param i W|(1Y D  
*/ 8e"gW >f  
private void insertSort(int[] data, int start, int len) { Ld-_,-n  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); wn)W ?P;k  
} <_KIK  
} {cw /!B  
} 5i{j' {_(8  
} eQvg7aO;  
rk)`\=No  
堆排序: e64^ChCoV  
##4HYQ%E  
package org.rut.util.algorithm.support; N$:8 ,9.z  
-RK- Fu<e  
import org.rut.util.algorithm.SortUtil; 8kDp_s i  
XHGFf_kW_N  
/** 5.J.RE"M  
* @author treeroot MR.'t9m2L  
* @since 2006-2-2 _2 osV[e  
* @version 1.0 ;mKb]  
*/ ZWp(GC1NA  
public class HeapSort implements SortUtil.Sort{ >~+ELVB&  
8|58 H  
/* (non-Javadoc) TrR8?-  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) n>U5R_T  
*/ z,%$+)K  
public void sort(int[] data) { @49S`  
MaxHeap h=new MaxHeap(); VBcPu  
h.init(data); .Rf_Cl  
for(int i=0;i h.remove(); 1D!<'`)AY  
System.arraycopy(h.queue,1,data,0,data.length); )IZ~G\Ra'  
} 0NX,QD  
x# 5A(g  
private static class MaxHeap{ "i W"NFO  
F`]2O:[  
void init(int[] data){ ayF\nk4b  
this.queue=new int[data.length+1]; /fV;^=:8c  
for(int i=0;i queue[++size]=data; [Cv/{f3]u{  
fixUp(size); OY@ %p}l  
} 5bpEYW+  
} >Wg hn:^  
k~ /Nv=D  
private int size=0; >`ZyG5  
sZF6h=67D  
private int[] queue; A1zjPG&]  
Hc(OI|z~  
public int get() { !0mI;~q|F  
return queue[1]; ]-QA'Lq  
} B~Xw[q  
\d$!a5LF}  
public void remove() { <B8!.|19  
SortUtil.swap(queue,1,size--); 1c{DY  
fixDown(1); OX\F~+  
} 001FmiV  
file://fixdown b(O3@Q6[  
private void fixDown(int k) { p,i[W.dy.'  
int j; _~iw[*#u  
while ((j = k << 1) <= size) { [RTs[3E^  
if (j < size %26amp;%26amp; queue[j] j++; P1' al  
if (queue[k]>queue[j]) file://不用交换 3"KCh\\b  
break;  p|D/;Mk  
SortUtil.swap(queue,j,k); < F+l  
k = j; HEc+;O1<  
} r#] WI|  
} 54li^   
private void fixUp(int k) { dT1H  
while (k > 1) { ysf~|r4s  
int j = k >> 1; +@iA;2&  
if (queue[j]>queue[k]) ?R.j^ S^  
break; u.Tcg^v  
SortUtil.swap(queue,j,k); .$)  
k = j; G<rHkt@[  
} ':m,)G5&  
} a\ YV3NJ/A  
oJ|j#+Ft  
} (|1A?@sJ#h  
EV@X*| w  
} uw +M  
XaPV9 4  
SortUtil: % 0+j?>#X  
G..aiA  
package org.rut.util.algorithm; FNY8tv*/x  
Av V|(K"  
import org.rut.util.algorithm.support.BubbleSort; R)ITy!z  
import org.rut.util.algorithm.support.HeapSort; t+T4-1 3a  
import org.rut.util.algorithm.support.ImprovedMergeSort; !Bq3Z?xA}  
import org.rut.util.algorithm.support.ImprovedQuickSort; Ob`d  
import org.rut.util.algorithm.support.InsertSort; DG ;_Vg  
import org.rut.util.algorithm.support.MergeSort; G@jZ)2  
import org.rut.util.algorithm.support.QuickSort; q6`b26  
import org.rut.util.algorithm.support.SelectionSort; HqD^B[ jS  
import org.rut.util.algorithm.support.ShellSort; !sW(wAy?o  
I5n^,@md  
/** @wo(tf=@P  
* @author treeroot c*L\_Vx+  
* @since 2006-2-2 E+g@M8D  
* @version 1.0 8MzVOF{"  
*/ E`de7  
public class SortUtil { T@&K- UQ  
public final static int INSERT = 1; p &"`RS #Z  
public final static int BUBBLE = 2; EZ$>.iy{  
public final static int SELECTION = 3; B s#hr3h-  
public final static int SHELL = 4; ``\i58K{e  
public final static int QUICK = 5; Ne{?:h.!  
public final static int IMPROVED_QUICK = 6; z Q`jP$2  
public final static int MERGE = 7; r@t9Ci=}  
public final static int IMPROVED_MERGE = 8;  fc-iAj  
public final static int HEAP = 9; J1sv[$9  
?+W 9az]+  
public static void sort(int[] data) { {rH@gz|@i  
sort(data, IMPROVED_QUICK); ';jYOVe  
} O  %!!w  
private static String[] name={ RcM/!,B  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" EGzzHIZ`!  
}; Y^7$t^&  
Hmd] FC,_  
private static Sort[] impl=new Sort[]{ fW3(&@  
new InsertSort(), * @v)d[z_  
new BubbleSort(), p~^D\jR.  
new SelectionSort(), J|kR5'?x  
new ShellSort(), nvJf/90$  
new QuickSort(), &cHV7  
new ImprovedQuickSort(), n%C>E.Tq  
new MergeSort(), 8WbgSY`  
new ImprovedMergeSort(), g Vv>9W('  
new HeapSort() )d1_Wm#B  
}; B~JwHwIhA  
v7jq@#-   
public static String toString(int algorithm){ PQnF  
return name[algorithm-1]; r(aLEJ"u?  
} /F-qP.<D,r  
UAFwi%@!-q  
public static void sort(int[] data, int algorithm) { =/Mq5.  
impl[algorithm-1].sort(data); 5eoska#y   
} !QHFg-=7  
EQ`(yj  
public static interface Sort { c5l.B#-lY  
public void sort(int[] data); KJ=6n%6  
} ujaG Ng?,  
28H8l2{[>  
public static void swap(int[] data, int i, int j) { V|/NB  
int temp = data; *:t|qgJI#+  
data = data[j]; XZJ+h,f  
data[j] = temp; >.'*) @vQi  
} ^m"u3b4  
} H!nr^l'+  
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:
10+5=?,请输入中文答案:十五