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
  • 5823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。 ssY5g !%  
插入排序: F<0GX!p4u  
as^!c!  
package org.rut.util.algorithm.support; G0h/]%I  
qw<~v?{|C  
import org.rut.util.algorithm.SortUtil; iy-~CPNB_  
/** Fa+#bX7  
* @author treeroot FKWL{"y  
* @since 2006-2-2 wN]]t~K)Q  
* @version 1.0 ]5a,%*f+  
*/ 9M;k(B!  
public class InsertSort implements SortUtil.Sort{ 2A&Y})D  
8, " 5z_  
/* (non-Javadoc) S;tv4JY  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lvp8{]I<  
*/ >Q#\X=a>  
public void sort(int[] data) { zvOSQxGQ  
int temp; IeT1Jwe  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ]@A31P4t|  
} }cO}H2m  
} kO}Q OL4  
} |%$mN{  
{Rtl<W0  
} }AG dWt@  
/ NB;eV?  
冒泡排序: -izZ D  
VMl)_M:'  
package org.rut.util.algorithm.support; ]I: h4hgw  
0eFvcH:qG  
import org.rut.util.algorithm.SortUtil; I><sK-3  
Qm@v}pD  
/** FA$1&Fu3Y  
* @author treeroot (5h+b_eB  
* @since 2006-2-2 W.m2`] &  
* @version 1.0 (W'3Zv'f  
*/ l<-0@(x)  
public class BubbleSort implements SortUtil.Sort{ ov|/=bzro  
~{$5JIpCm  
/* (non-Javadoc)  2p;N|V  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^oXLk&d  
*/ OM (D@up  
public void sort(int[] data) { el3lR((H  
int temp; u.ub:  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ~JX+4~qT  
if(data[j] SortUtil.swap(data,j,j-1); _ lE d8Cb  
} I?X!v6  
}  aX}:O  
} T{4Ru6[  
} RxUzJ  
<2ymfL-q  
} "yf#sEabV  
d: LP8  
选择排序: :<PwG]LO  
EZ)$lw/!J  
package org.rut.util.algorithm.support; s5&v~I;>e  
\[Q*d  
import org.rut.util.algorithm.SortUtil; m!sMr^W  
E3d# T  
/** "zx4k8  
* @author treeroot h ngdeGa  
* @since 2006-2-2 8omk4 ;  
* @version 1.0 r8TNl@Z  
*/ '[`pU>9  
public class SelectionSort implements SortUtil.Sort { {wCzm  
!~QmY,R  
/* ";*Iwd*V  
* (non-Javadoc) 't#E-+o  
* k*k 9hv?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) TKrh3   
*/ D)GD9MJ  
public void sort(int[] data) { s^>1rV]=(`  
int temp; $[M5V v  
for (int i = 0; i < data.length; i++) { pa2cM%48  
int lowIndex = i; *,#T&M7D  
for (int j = data.length - 1; j > i; j--) { [*z`p;n2D  
if (data[j] < data[lowIndex]) { o}6d[G>  
lowIndex = j; B`/p[U5  
} ,#hx%$f}d  
} BiI`oCX  
SortUtil.swap(data,i,lowIndex); {N`<TH PP  
} ZuVes?&j  
} L%5g]=  
by@}T@^\  
} `>N_A!pr`  
.!yw@kg  
Shell排序: v6*8CQ+  
<j&LC /]o  
package org.rut.util.algorithm.support; U`)o$4Bq  
RJ~I?{yR0[  
import org.rut.util.algorithm.SortUtil; ]x^v;r~  
MClvmv^  
/** ~spfQV~  
* @author treeroot 'J(B{B7|  
* @since 2006-2-2 <p\iB'y  
* @version 1.0 PNG!q}(c  
*/ L0EF CQ7  
public class ShellSort implements SortUtil.Sort{ {/K_NSg+h  
rFU|oDF  
/* (non-Javadoc) /p7-D;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `uLH3sr  
*/ Yxd&hr  
public void sort(int[] data) { 6R';[um?q  
for(int i=data.length/2;i>2;i/=2){ nEbJ,#>Z  
for(int j=0;j insertSort(data,j,i); a_amO<!   
} p}9bZKyf  
} P,ud"F=r  
insertSort(data,0,1); <L>$Y#wU  
} L_QJS2  
/d-d8n  
/** $Y&rci]  
* @param data !R"iV^?V  
* @param j (^ ;Fyf/  
* @param i pqnZ:'V  
*/ L>{p>  
private void insertSort(int[] data, int start, int inc) { e sDd>W  
int temp; 2-x#|9  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 0pl |  
} sEm064  
} ~CQTPR  
} ^E= w3g&  
}.74w0~0^  
} FCPi U3  
(|_N2R!  
快速排序: 2#t35fU  
uwhb-.w  
package org.rut.util.algorithm.support; :Miri_l  
LS{t7P9K  
import org.rut.util.algorithm.SortUtil; @-G^Jm9~\m  
GEQ3r'B|  
/** $9Asr07  
* @author treeroot F2Nb]f  
* @since 2006-2-2 t%Hy#z1W_  
* @version 1.0 \SQwIM   
*/ N_eZz#);  
public class QuickSort implements SortUtil.Sort{ *g~\lFX,u  
c0Oc-,6J  
/* (non-Javadoc) j_Q kw ?   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C,#FH}  
*/ X0e#w?  
public void sort(int[] data) { ?/ Cl  
quickSort(data,0,data.length-1); |)+; d  
} g}Esj"7  
private void quickSort(int[] data,int i,int j){ < rqFBq 8  
int pivotIndex=(i+j)/2; r'~^BLT`#  
file://swap x9s1AzM{  
SortUtil.swap(data,pivotIndex,j); o:8*WCiqrN  
[6{o13mCWE  
int k=partition(data,i-1,j,data[j]); %YbcI|i]<0  
SortUtil.swap(data,k,j); RJO40&Z<Z  
if((k-i)>1) quickSort(data,i,k-1); @EV*QC2l;Y  
if((j-k)>1) quickSort(data,k+1,j); e SlZAdK  
S=.7$PY  
} :$gR >.`  
/**  Re^~8q[  
* @param data f9FLtdh \7  
* @param i I|oS`iLl$  
* @param j l1MVC@'pvP  
* @return %9lx)w  
*/ SFQYrY  
private int partition(int[] data, int l, int r,int pivot) { ]F81N(@:F  
do{ ~L7@,d:  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); E3==gYCe*  
SortUtil.swap(data,l,r); Gn7P` t*.  
} mpysnKH  
while(l SortUtil.swap(data,l,r); oo{3-+ ?  
return l; xQK;3b  
} { i2QLS  
o2 vBY]Tj  
} !Ey=  
^qP}/H[QT  
改进后的快速排序: !.}ZlA  
4<{]_S6"0y  
package org.rut.util.algorithm.support; i9 Tq h  
W`2Xn?g  
import org.rut.util.algorithm.SortUtil; Y&JK*d  
n13#}i {tm  
/** "x P2GZ  
* @author treeroot wSwDhOX=  
* @since 2006-2-2 YN>k5\M_v  
* @version 1.0 MrGq{,6C  
*/ >*FHJCe  
public class ImprovedQuickSort implements SortUtil.Sort { XwNJHOaF  
5B76D12  
private static int MAX_STACK_SIZE=4096; C~:@ETcbil  
private static int THRESHOLD=10; DtrR< &m  
/* (non-Javadoc) ~vMdIZ.h  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g!*5@k|C  
*/ 7Fd`M To  
public void sort(int[] data) { p,'Z{7HG  
int[] stack=new int[MAX_STACK_SIZE]; aF (L_  
!|@hU/  
int top=-1; IVblS iFF  
int pivot; -4IHs=`;I  
int pivotIndex,l,r; /suW{8A(E  
eKw!%97>  
stack[++top]=0; #lld*I"d  
stack[++top]=data.length-1; b)1v:X4Bv=  
U:1cbD7|3  
while(top>0){ HZDeQx`*s  
int j=stack[top--]; +t hkx$o  
int i=stack[top--]; f+K vym.  
jqeR{yo&0b  
pivotIndex=(i+j)/2; !i{9wI  
pivot=data[pivotIndex]; KqI<#hUl  
W3.(s~ )o  
SortUtil.swap(data,pivotIndex,j); `z)q/;}fC  
pd Fa]  
file://partition C ks;f6G  
l=i-1; yur5" $n  
r=j; :U!@  
do{ $2gX!)  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); d[7B,l:RN  
SortUtil.swap(data,l,r); Vw>AD<Rl  
} !`h^S)$  
while(l SortUtil.swap(data,l,r); >nqCUhS   
SortUtil.swap(data,l,j); iS]4F_|vd  
jr`;H  
if((l-i)>THRESHOLD){ f}%paE"  
stack[++top]=i; -\dcs?  
stack[++top]=l-1; NQpC]#n  
} f2f2&|7  
if((j-l)>THRESHOLD){ (.Th?p%>7  
stack[++top]=l+1; Am @o}EC  
stack[++top]=j; Xvr7qowL  
} 4v?}K   
`k]2*$%  
} WNmG'hlA  
file://new InsertSort().sort(data); )nM<qaI{  
insertSort(data); P1u(0t  
} hq|I%>y  
/** hzcSKRm  
* @param data FJCLK#-  
*/ :I !}ZD+Z  
private void insertSort(int[] data) { [0M`uf/u  
int temp; z9qF<m  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); d"0=.sA  
} 5ca!JLs  
} 1&.q#,EMn(  
} $c0<I59&|  
N7 ox#=g  
} ]H$Trf:L  
Svl; Ul  
归并排序: $2J[lt?%  
h; "pAE  
package org.rut.util.algorithm.support; F +Dke>j  
"PePiW(i+  
import org.rut.util.algorithm.SortUtil; h7a/]~  
w =2; QJ<  
/** ~4V-{-=0a7  
* @author treeroot j' }4ZwEh  
* @since 2006-2-2 # H)\ts  
* @version 1.0 -%)S~ R  
*/ ya'Ma<4  
public class MergeSort implements SortUtil.Sort{ B"Hz)-MW  
qvC2BQ  
/* (non-Javadoc) R}E$SmFg  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &y&pjo6v1  
*/ h2P&<ggqX  
public void sort(int[] data) { Bag_0.H&m  
int[] temp=new int[data.length]; Is[n7Q  
mergeSort(data,temp,0,data.length-1); {TVQ]G%'b  
} 8mM`v  
&WJ;s*  
private void mergeSort(int[] data,int[] temp,int l,int r){ "~:P-]`G  
int mid=(l+r)/2; wvcj*{7[  
if(l==r) return ; > Hwf/Gf[  
mergeSort(data,temp,l,mid); Z/e^G f#i  
mergeSort(data,temp,mid+1,r); nJ2910"<  
for(int i=l;i<=r;i++){ cES8%UC^i  
temp=data; EL^j}P  
} B".3NQ  
int i1=l; 9 K~X+N\  
int i2=mid+1; &ev#C%Nu  
for(int cur=l;cur<=r;cur++){ cof+iI~9O%  
if(i1==mid+1) fJK;[*&Y  
data[cur]=temp[i2++]; ;;}}uW=  
else if(i2>r) #B6$ r/%  
data[cur]=temp[i1++]; 8'-E>+L   
else if(temp[i1] data[cur]=temp[i1++]; ql I1<Jx  
else pqDlg  
data[cur]=temp[i2++]; rKkFflOVO  
} :/\KVz'fw}  
} DCSmEy`.  
otmyI;v 7<  
} q"-+`;^7(-  
'>:%n  
改进后的归并排序: k[a5D/b  
_T(77KLn;  
package org.rut.util.algorithm.support; b>@fHmpwD  
#:E^($v  
import org.rut.util.algorithm.SortUtil; x }.&?m  
Ch'e'EmI  
/** Zfc{}ius  
* @author treeroot T?KM}<$(O  
* @since 2006-2-2 },%, v2}  
* @version 1.0 V(=3K"j  
*/ $VJE&b  
public class ImprovedMergeSort implements SortUtil.Sort { "\O{!Hj8  
J?/NJ-F  
private static final int THRESHOLD = 10; 6 g)X&pZ  
j)mi~i*U  
/* ?OBB)hj  
* (non-Javadoc) rI'kZ0&  
* ,veo/k<"r8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1[]V @P^  
*/ $AF,4Ir-b+  
public void sort(int[] data) { iUq{c+h  
int[] temp=new int[data.length]; `{&l _  
mergeSort(data,temp,0,data.length-1); I#- T/1N  
} B*^8kc:)L  
A",Xn/d  
private void mergeSort(int[] data, int[] temp, int l, int r) { JpZ3T~Wrf  
int i, j, k; 0IxHB|^$  
int mid = (l + r) / 2; 98Im/v  
if (l == r) SD.c 9  
return; $%z M Z  
if ((mid - l) >= THRESHOLD) &`}ACTY'P  
mergeSort(data, temp, l, mid); X<uH [  
else ^)1!TewCY  
insertSort(data, l, mid - l + 1); h{CMPJjD  
if ((r - mid) > THRESHOLD) 8nTdZu  
mergeSort(data, temp, mid + 1, r); bJB* w  
else *lyRy/POB  
insertSort(data, mid + 1, r - mid); y<^hM6S?Z  
i)[~]D.EH8  
for (i = l; i <= mid; i++) { S~\u]j^%y  
temp = data; QuBaG<  
} zvKypx  
for (j = 1; j <= r - mid; j++) { z<u@::  
temp[r - j + 1] = data[j + mid]; v;:. k,E0  
}  V/t-  
int a = temp[l]; *?!A  
int b = temp[r]; 6D29s]h2  
for (i = l, j = r, k = l; k <= r; k++) { puK /;nns  
if (a < b) { Ql9 )  
data[k] = temp[i++]; cpQhg-LY|  
a = temp; 18JAca8Zs  
} else { #4{9l SbU  
data[k] = temp[j--]; +.|8W!h`1  
b = temp[j]; lt|UehJ F  
} ePY69!pO5e  
} ol@LLT_m  
} dUP8[y  
q&V=A[<rz  
/** d~w}{LR[1  
* @param data /;9]LC.g  
* @param l 0[!38  
* @param i ZZU"Q7`^  
*/ ' 4 Kf  
private void insertSort(int[] data, int start, int len) { W_ubgCB  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); $-lP"m@}  
} K Z Q `  
} ?OdJ t  
} "kkZK=}Nv  
} qW t 9Tr  
0 hS(9y40  
堆排序: Jc,{ n*  
so }Kb3n  
package org.rut.util.algorithm.support; QW6\~l 4  
S@eI3Pk E  
import org.rut.util.algorithm.SortUtil; z=a{;1A  
2w67 >w\  
/** 84YZT+TEN  
* @author treeroot $jNp-5+Q;  
* @since 2006-2-2 n##d!d|g  
* @version 1.0 |d=MX>i|G  
*/ APY*SeI V  
public class HeapSort implements SortUtil.Sort{ ~ H $q  
Uv(Uj3D  
/* (non-Javadoc)  ^6Y:9+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S`&YY89{&  
*/ 4&^BcWqA*f  
public void sort(int[] data) { l;'c6o0e  
MaxHeap h=new MaxHeap(); c!=^C/5Ee  
h.init(data); &HYs^|ydrr  
for(int i=0;i h.remove(); L }&$5KiwV  
System.arraycopy(h.queue,1,data,0,data.length); VD-2{em  
} /]"2;e-s+  
y w>T1  
private static class MaxHeap{ "ju0S&  
R{A$hnhW6  
void init(int[] data){ %SD=3UK6  
this.queue=new int[data.length+1]; l/@t>%  
for(int i=0;i queue[++size]=data; U#1 ,]a\  
fixUp(size); 06~HVv  
} 4O'X+dv^I  
} Dl95Vo=1  
\ D,c*I|p7  
private int size=0; H| 1O>p&  
#F!'B|n  
private int[] queue; tO]` I-  
Irnfr\l.  
public int get() { i-_ * 5%A  
return queue[1]; ,1&</R_  
} d}RR!i`<N  
4]3(Vyh`  
public void remove() { 0s8w)%4$  
SortUtil.swap(queue,1,size--); J,j!  
fixDown(1); l-RwCw4f  
} "1Oe bo2  
file://fixdown #OVf2  "  
private void fixDown(int k) { 3erGTa[|q  
int j; 5cE?>  
while ((j = k << 1) <= size) { 5rx;?yvn  
if (j < size %26amp;%26amp; queue[j] j++; #Jqa_$\.  
if (queue[k]>queue[j]) file://不用交换 ]:vo"{*C  
break; 'vUx4s  
SortUtil.swap(queue,j,k); {expx<+4F  
k = j; QSq0{  
} v\:P _J  
} m'P,:S)=  
private void fixUp(int k) { { |[n>k   
while (k > 1) { aZ{]t:]  
int j = k >> 1; #0;ULZ99aH  
if (queue[j]>queue[k]) yxz"9PE/P  
break; f]Q`8nU  
SortUtil.swap(queue,j,k); PhOtSml0  
k = j; y,QJy=?  
} :gJ?3LwTf  
} I@<\DltPi  
Z&E!m   
} .#[==  
bI"_hvcFp  
} \tx4bV#  
3/q) %Z^=  
SortUtil: QBI;aG<+b>  
,aBo p#  
package org.rut.util.algorithm; >=Pn\" j  
:v>Nz7SB  
import org.rut.util.algorithm.support.BubbleSort; t}]R0O.s  
import org.rut.util.algorithm.support.HeapSort; qoXncdDHZ  
import org.rut.util.algorithm.support.ImprovedMergeSort; ^yo~C3 r~  
import org.rut.util.algorithm.support.ImprovedQuickSort; >MeM  
import org.rut.util.algorithm.support.InsertSort; n6Qsug$z  
import org.rut.util.algorithm.support.MergeSort; #[C=LGi  
import org.rut.util.algorithm.support.QuickSort; _rU%DL?  
import org.rut.util.algorithm.support.SelectionSort; 1SGLA"r  
import org.rut.util.algorithm.support.ShellSort; x<es1A'u6  
F+3}Gkn  
/** Lradyo44u\  
* @author treeroot .sOEqwO}>  
* @since 2006-2-2 ?]]d s]  
* @version 1.0 2)zAX"#/  
*/ C>:'@o Z  
public class SortUtil { b,Vg3BS  
public final static int INSERT = 1; 3</gK$f2  
public final static int BUBBLE = 2; H${5pY_M  
public final static int SELECTION = 3; Ghb Jty`  
public final static int SHELL = 4; J>XMaI})U  
public final static int QUICK = 5; O<o>/HH$  
public final static int IMPROVED_QUICK = 6; %2jRJ  
public final static int MERGE = 7; *lT:P-  
public final static int IMPROVED_MERGE = 8; }; ;Thfd  
public final static int HEAP = 9; A3 |hFk  
:_f5(N*{5o  
public static void sort(int[] data) { Y3QrD&V  
sort(data, IMPROVED_QUICK); 2aR<xcSg  
} (6Tvu5*4U  
private static String[] name={ 6S GV}dAx  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 5v`[c+@F  
}; (:P-ef$]C  
Gjh8>(  
private static Sort[] impl=new Sort[]{ n+XLZf#  
new InsertSort(), _vV3A3|Ec,  
new BubbleSort(), v{[:7]b_=  
new SelectionSort(), t) :'XGk@  
new ShellSort(), Sb& $xWL  
new QuickSort(), y9xvGr[l  
new ImprovedQuickSort(), W#.+C6/  
new MergeSort(), 4,]z  
new ImprovedMergeSort(), {%b*4x0?  
new HeapSort() R#^.8g)t  
}; [PW\l+i  
%A^V@0K3  
public static String toString(int algorithm){ 15X.gx  
return name[algorithm-1]; 7B)m/%>3s  
} 1z5Oi u  
;#Y'SK  
public static void sort(int[] data, int algorithm) { ?;0w1  
impl[algorithm-1].sort(data); 7a_tT;f;  
} D,l&^diz  
QK`5KB(k'  
public static interface Sort { nR(v~_y[V  
public void sort(int[] data); EIrAq!CA  
} Bgvv6(i  
L HW\A8  
public static void swap(int[] data, int i, int j) { Qu;cl/&  
int temp = data; 'OTQiI^t=  
data = data[j]; ;[-TsX:  
data[j] = temp; HPz3"3n!  
} :yi?<  
} Id}/(Pkq  
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