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
  • 8782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。 _'CYS3-P3  
插入排序: BQ[,(T`+R  
!(%^Tg=  
package org.rut.util.algorithm.support; G<dWh.|`=  
cJIA/HQe  
import org.rut.util.algorithm.SortUtil; N;\G=q] 9  
/** ;+86q"&n  
* @author treeroot aPELAU-  
* @since 2006-2-2 d]fo>[%Xr  
* @version 1.0 HB/q v IzB  
*/ c8R#=^ DD  
public class InsertSort implements SortUtil.Sort{ }DCR(p rD  
y2_^lW%  
/* (non-Javadoc) +{eZ@  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ITUwIpA E  
*/ Zze(Ik  
public void sort(int[] data) { Oo)MxYPU  
int temp; CrTGC%w{=  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); U]8 @  
} J|'e.1v  
} *5Mg^}ZC5  
} 1cA4-,YO>  
&5x ]9   
} bD: yu  
oo+nqc`,O  
冒泡排序: &efwfnG<  
+"~~; J$  
package org.rut.util.algorithm.support; 31FQ=(K  
J&vmW}&  
import org.rut.util.algorithm.SortUtil; `S&$y4|Vs  
W5&;PkhQ6  
/** CO)BF%?B  
* @author treeroot .lcI"%>  
* @since 2006-2-2 {H\(H _X  
* @version 1.0 KRL9dD,&  
*/ BLno/JK0}  
public class BubbleSort implements SortUtil.Sort{ qi ;X_\v  
 e>FK5rz  
/* (non-Javadoc) )q+Qtz6D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) t9Sog~:'  
*/ G"xa"hGF  
public void sort(int[] data) { EYLqg`2A  
int temp; _ @U11|  
for(int i=0;i for(int j=data.length-1;j>i;j--){ 8M"0o}wx  
if(data[j] SortUtil.swap(data,j,j-1); >f !  
} -0tHc=\u(  
} b }^ylm  
} "b#L8kN  
} ne~=^IRB  
B\tP{}P8{  
} gGtl*9a=  
O|Z5SSlk  
选择排序: nw)yK%`;M  
RKt#2%FFO  
package org.rut.util.algorithm.support; 3T<aGW1  
9q4%s?)j  
import org.rut.util.algorithm.SortUtil; O6P{+xj$  
+V N&kCx)  
/** + Q $J q  
* @author treeroot figCeJ!W4  
* @since 2006-2-2 :*/'W5iM  
* @version 1.0 IPIas$  
*/ | M|5Nc>W  
public class SelectionSort implements SortUtil.Sort { 1pM"j!  
AWXBk+  
/* 9/@7NNKJ  
* (non-Javadoc) sXpA^pT"T  
* z-Ndv;:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) oa K&!$S]  
*/ ly8IrgtKy  
public void sort(int[] data) { LzS)WjEN  
int temp; qZcRK9l]F1  
for (int i = 0; i < data.length; i++) { &2,0?ra2&  
int lowIndex = i; V"r2 t9A  
for (int j = data.length - 1; j > i; j--) { !n?8'eqWru  
if (data[j] < data[lowIndex]) { v Mi&0$  
lowIndex = j; Avc9W[4  
} C.& R,$  
} bH7 lUS~  
SortUtil.swap(data,i,lowIndex); A:?|\r  
} P>i!f!o*I  
} 9k`}fk\M  
\d,wcL  
} &`9p.  
f\{ynC2m  
Shell排序: N1vPY]8  
OX  r%b  
package org.rut.util.algorithm.support; p;Lp-9H\33  
(sfy14>\  
import org.rut.util.algorithm.SortUtil; DC-tBbQkk  
lDV}vuM<4  
/** T- |36Os4  
* @author treeroot Q, `:RF3  
* @since 2006-2-2 Y]33:c_;Mo  
* @version 1.0 ^qro0]"LD  
*/ L2j7w006  
public class ShellSort implements SortUtil.Sort{ >p[skN   
lO>9Q]S<  
/* (non-Javadoc) -fA1_ ?7S  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) DMcH, _(  
*/ k-zkb2  
public void sort(int[] data) { q9^6A90  
for(int i=data.length/2;i>2;i/=2){ JJ+A+sfdk  
for(int j=0;j insertSort(data,j,i); y;r{0lTB  
} `> :^c  
} Vp.&X 8  
insertSort(data,0,1); !UV1OU  
} I\,m6 =q  
H E'1Wa0r  
/** ?uBZ"^'  
* @param data zBKfaQI,  
* @param j /M3UK  
* @param i I=DvP;!  
*/ ^F e %1Lnt  
private void insertSort(int[] data, int start, int inc) { T0Kjnzs  
int temp; WA$Ug  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); TB@0j ;g  
} |RA|nu   
} 6zf3A:]&{  
} s;9>YV2at  
%!vgAH4  
} @|i f^  
l )m]<E X  
快速排序: RaBq@r*(  
nz}} m^-j  
package org.rut.util.algorithm.support; bFv,.(h'  
^hN.FIzM  
import org.rut.util.algorithm.SortUtil; J,&B   
^G*zFqa+`  
/** 9td[^EB#(h  
* @author treeroot \GFFPCi4 D  
* @since 2006-2-2 j/Dc';,d.(  
* @version 1.0 p[&6hXTd  
*/ M;$LB@h  
public class QuickSort implements SortUtil.Sort{ TA"4yri=7x  
kR1dk4I4  
/* (non-Javadoc) K@0/iWm*  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) D rMG{Yiu  
*/ OZ9ud ]@\  
public void sort(int[] data) { r@.3.Q  
quickSort(data,0,data.length-1); ifYC&5}SI  
} ~ZN]2}  
private void quickSort(int[] data,int i,int j){ ]%4rL S  
int pivotIndex=(i+j)/2; d ~`_;.z  
file://swap KXtc4wra  
SortUtil.swap(data,pivotIndex,j); 33*NgQ;&~'  
YM(` E9{h  
int k=partition(data,i-1,j,data[j]); { yvKUTq`  
SortUtil.swap(data,k,j); YcQ3 :i  
if((k-i)>1) quickSort(data,i,k-1); ^-|yF2>`  
if((j-k)>1) quickSort(data,k+1,j); V.f'Cw  
yE80*C~d  
} 4NN81~v 4  
/** }z/Y Hv%  
* @param data 0nDlqy6b1b  
* @param i cfg_xrW0^  
* @param j )RFE< Qcj  
* @return (K}Md~  
*/ } XJZw|n  
private int partition(int[] data, int l, int r,int pivot) { FX6 *`  
do{ DKzP)!B "  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); <r1N6(n  
SortUtil.swap(data,l,r); F9Bj$`#)  
} (ru9Ke%Dx  
while(l SortUtil.swap(data,l,r); 5ZPe=SQ{  
return l; :M%s:,]R  
} }"{NW!RfP  
^&|$&7  
} -A\J:2a|  
`c-(1 ;Jb  
改进后的快速排序: N-+`[8@(P<  
7T)J{:+0!|  
package org.rut.util.algorithm.support; 3cp"UU}.  
" * Qwaq_  
import org.rut.util.algorithm.SortUtil;  9kkYD  
'za4c4b*u  
/** ?b&~(,A{  
* @author treeroot 'x-PQQ  
* @since 2006-2-2 0k];%HV|  
* @version 1.0 HKr6h?Si^  
*/ l*l(QvN_  
public class ImprovedQuickSort implements SortUtil.Sort { >#MGGCGL  
+QqEUf<U*,  
private static int MAX_STACK_SIZE=4096; $jDp ^ -  
private static int THRESHOLD=10; ON$^_l/c  
/* (non-Javadoc) aXSTA ,%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f y|Ae  
*/ <.d0GD`^  
public void sort(int[] data) { 0CYm%p8!  
int[] stack=new int[MAX_STACK_SIZE]; ^c9~~m16+  
z]NN ^pIa  
int top=-1; D;V FM P  
int pivot; CVi3nS5Yl  
int pivotIndex,l,r; @jE<V=?  
_~M*XJ] `  
stack[++top]=0; %rz.>4i)(  
stack[++top]=data.length-1; Ef;OrE""  
=9oN#4mWK  
while(top>0){ ~D4%7U"dv  
int j=stack[top--]; nl7=Nhh  
int i=stack[top--]; T/^ /U6JB  
/CtR|~wL  
pivotIndex=(i+j)/2; nnU &R  
pivot=data[pivotIndex]; (aX5VB**  
W*hRYgaX3  
SortUtil.swap(data,pivotIndex,j); ,R j{^-k  
.1yp}&e#  
file://partition e1dT~l  
l=i-1; Ksq{=q-T  
r=j; [T;0vv8  
do{ ;[-dth  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 6'e}!O  
SortUtil.swap(data,l,r); 7W[}7Y   
} +jFcq:`#UG  
while(l SortUtil.swap(data,l,r); d#N<t`  
SortUtil.swap(data,l,j); /5@V $c8  
ta*B#2D>  
if((l-i)>THRESHOLD){ /?%zNkcxu  
stack[++top]=i; -d+q+l>0  
stack[++top]=l-1; /q4<ZS#  
} Y~T;{&wi  
if((j-l)>THRESHOLD){ ZJ9J*5!C  
stack[++top]=l+1; We#u-#k_O  
stack[++top]=j; S x';Cj-  
} @N`) Z3P+  
 _2VL%  
} 6mJa  
file://new InsertSort().sort(data); *KO4H  
insertSort(data); 6,sZo!G  
} /wB<1b"  
/** )+c4n]  
* @param data K@P5]}'#  
*/ $UMxO`F  
private void insertSort(int[] data) { u@\]r 1  
int temp; H gMLh*  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); +53 Tf  
} 'W 5r(M4U  
}  9x/HQ(1  
} ?Gc9^b B I  
LlP_`fA  
} s+>VqyHgf  
U+t|wK  
归并排序: XSkN9LqZ  
 h&\%~LO.  
package org.rut.util.algorithm.support; bv`gjR  
jN:!V t  
import org.rut.util.algorithm.SortUtil; Ycypd\q/  
0wV!mC  
/** =(ts~^  
* @author treeroot OPR+K ?  
* @since 2006-2-2 C`c;I7  
* @version 1.0 r>1M&Y=<  
*/ [?mDTD8zU  
public class MergeSort implements SortUtil.Sort{ Y,OSQBgk  
P g.PD,&U  
/* (non-Javadoc) 6LRI~*F=3  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HDU tLU d  
*/ Ml` f+$  
public void sort(int[] data) { PR=:3-#R  
int[] temp=new int[data.length]; h V@C|*A  
mergeSort(data,temp,0,data.length-1); <JE-#i  
} TIbqUR  
c#M 'Mye  
private void mergeSort(int[] data,int[] temp,int l,int r){ 76a+|TzR  
int mid=(l+r)/2; B5>h@p-UV  
if(l==r) return ; LC/9)Sh_n  
mergeSort(data,temp,l,mid); FN5*pVD;<  
mergeSort(data,temp,mid+1,r); |e@9YDZ  
for(int i=l;i<=r;i++){ pqO}=*v@  
temp=data; 2Q`@lTUv  
} _4iTP$7[  
int i1=l; %-!ruc"}  
int i2=mid+1; TSXa#SKp  
for(int cur=l;cur<=r;cur++){ e0%?;w-TL  
if(i1==mid+1) _Z'j%/-4@D  
data[cur]=temp[i2++]; } )O ^xF ~  
else if(i2>r) W!pLk/|ls  
data[cur]=temp[i1++]; <Y9vc:S  
else if(temp[i1] data[cur]=temp[i1++]; w4U]lg<}E  
else 7Wb:^.d g  
data[cur]=temp[i2++]; ,Ju f  
} qepsR/0M  
} l$D]*_ jc,  
Mp*")N,  
} kRs(A~ngc  
elCDPZTf  
改进后的归并排序: :Xc%_&)  
Mi&,64<  
package org.rut.util.algorithm.support; =s`\W7/;{-  
1UX"iO x(  
import org.rut.util.algorithm.SortUtil; 59gt#1k  
jPg8>Z&D  
/** w(pLU$6X  
* @author treeroot |LA./%U  
* @since 2006-2-2 xoI;s}*E  
* @version 1.0 XYIZ^_My  
*/ 4*W ??(=j  
public class ImprovedMergeSort implements SortUtil.Sort { Y<M,/Y_ !  
Yz;Hu$/  
private static final int THRESHOLD = 10; a9PSg/p  
I`kaAOe  
/* =,&PD(.  
* (non-Javadoc) sh(G{Yz@  
* $},Y)"mI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5qtZ`1Hq  
*/ PeGL Rbx34  
public void sort(int[] data) { CrC1&F\dq  
int[] temp=new int[data.length]; [<P(S~J  
mergeSort(data,temp,0,data.length-1); }N^.4HOS8  
} P.mz$M  
o@j]yA.5)  
private void mergeSort(int[] data, int[] temp, int l, int r) { %[0V>  
int i, j, k; so}(*E&(a  
int mid = (l + r) / 2; ocBfs^ aW  
if (l == r) %cMX]U  
return; FOiwB^$ >  
if ((mid - l) >= THRESHOLD) =4cK9ac  
mergeSort(data, temp, l, mid); ;n_|t/=  
else :GXiA  
insertSort(data, l, mid - l + 1);  f.acH]p  
if ((r - mid) > THRESHOLD) LcS\#p#s]  
mergeSort(data, temp, mid + 1, r); ei)ljvvmHP  
else Br.$:g#  
insertSort(data, mid + 1, r - mid); eAN]*: ]g  
NfizX!w&  
for (i = l; i <= mid; i++) { TUoEk  
temp = data; <6g{vNA  
} p\OUxAm  
for (j = 1; j <= r - mid; j++) { c?B@XIl  
temp[r - j + 1] = data[j + mid]; O?e38(  
} eS(\E0%QI  
int a = temp[l]; Ag=>F5  
int b = temp[r]; /NfuR$oMd  
for (i = l, j = r, k = l; k <= r; k++) { +-YMW;5  
if (a < b) { ek!x:G$'  
data[k] = temp[i++]; 8&?Kg>M  
a = temp; *YmR7g|k  
} else { y}5V3)P  
data[k] = temp[j--]; 6lw)L  
b = temp[j]; 6L[Yn?;  
} \M0-$&[+Z  
} 8qGK"%{ ~  
} L+,p#w  
/f_w@TR\{  
/** ^\=<geEj  
* @param data ) =-$>75Z  
* @param l t}L kl(  
* @param i 4FURm@C6  
*/ Nn<TPT[,  
private void insertSort(int[] data, int start, int len) { wdg,dk9e$  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); Q\.~cIw_AQ  
} x`n$4a'7b  
} "SC}C  
} xR;>n[6  
} D^qto{!  
Sy|fX_i  
堆排序: aphfzo  
)D'SfNx#{  
package org.rut.util.algorithm.support; ^o&3+s} M  
G J"S*30  
import org.rut.util.algorithm.SortUtil; q6DuLFatc*  
IzVb  
/** 7\x7ySM  
* @author treeroot ZlQ@k{Es~  
* @since 2006-2-2 ;f,`T  
* @version 1.0 Xc"l')1H  
*/ w#|uR^~  
public class HeapSort implements SortUtil.Sort{ }ie  O  
~D# -i >Z  
/* (non-Javadoc) fA"N5qQI(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) n;&08M5an}  
*/ v2=Iqo  
public void sort(int[] data) { /}+VH_N1  
MaxHeap h=new MaxHeap(); ~[n]la  
h.init(data); dH:z _$Mg  
for(int i=0;i h.remove(); 5cj]Y)I-~  
System.arraycopy(h.queue,1,data,0,data.length); S -$ L2N  
} $ 9bIUJ  
%oPW`r  
private static class MaxHeap{ m?3!  
0u[Vd:()v(  
void init(int[] data){ c;siMWw;  
this.queue=new int[data.length+1]; &b :u~puM  
for(int i=0;i queue[++size]=data; JX4uH>6  
fixUp(size); <ZmC8&Uo  
} }!_x\eq^  
} Jr|"QRC  
~,#zdm1r@  
private int size=0; l0Rjq*5hJ  
y04md A6<  
private int[] queue; ~N "rr.w  
\S #Mc  
public int get() { &1nZ%J9  
return queue[1]; z+3G zDLy  
} HURr k~[  
iCd$gwA>F  
public void remove() { Pw c)u&  
SortUtil.swap(queue,1,size--); GD(gm, ,)  
fixDown(1); z =m Dd  
} KX8$j$yW  
file://fixdown FPAy.cljJ  
private void fixDown(int k) { `FS)i7-o6  
int j; ?\ Fo|__  
while ((j = k << 1) <= size) { yFt$L'#  
if (j < size %26amp;%26amp; queue[j] j++; )?_x$GKY  
if (queue[k]>queue[j]) file://不用交换 `D *U@iJ  
break; _8zZ.~)  
SortUtil.swap(queue,j,k); T}fH  
k = j; Nf@-i`  
} dKk\"6 o  
} *=G~26*!V  
private void fixUp(int k) { wWq(|"  
while (k > 1) { jLc"1+  
int j = k >> 1; &Bn> YFu  
if (queue[j]>queue[k]) + t%[$"$  
break; @34Z/%A  
SortUtil.swap(queue,j,k); !+bLh W`  
k = j; m .:2G  
} h\qQ%|X  
} Cu2eMUGt  
qH 1k  
} a4a/]q4T  
<]: X  
} ,[gu7z^|  
%IAZU c  
SortUtil: ?HD eiJ kX  
!u)>XS^E  
package org.rut.util.algorithm; KImBQ2^Tu  
K!AW8FnHkZ  
import org.rut.util.algorithm.support.BubbleSort; +-%&,>R  
import org.rut.util.algorithm.support.HeapSort; ;i;2cq  
import org.rut.util.algorithm.support.ImprovedMergeSort; ucP"<,a  
import org.rut.util.algorithm.support.ImprovedQuickSort; <H; z4  
import org.rut.util.algorithm.support.InsertSort; b\{34z,  
import org.rut.util.algorithm.support.MergeSort; =`&7pYd,  
import org.rut.util.algorithm.support.QuickSort; fRcs@yZnS  
import org.rut.util.algorithm.support.SelectionSort; f&=WgITa  
import org.rut.util.algorithm.support.ShellSort; ZnrsJ1f:  
p?@R0]  
/** &- 5`Oln  
* @author treeroot *s=jKV#  
* @since 2006-2-2 G 51l_  
* @version 1.0 XIep3l*  
*/ eT!*_.' e  
public class SortUtil { DHI%R<  
public final static int INSERT = 1; N*^iOm]Y  
public final static int BUBBLE = 2; ?$chO|QY  
public final static int SELECTION = 3; zcqv0lM '  
public final static int SHELL = 4; [ GcH4E9r  
public final static int QUICK = 5; (ncm]W  
public final static int IMPROVED_QUICK = 6; jH5VrN*Q  
public final static int MERGE = 7; ^ <$$h  
public final static int IMPROVED_MERGE = 8; s (2/]f$  
public final static int HEAP = 9; vHydqFi9  
6H ]rO3[8  
public static void sort(int[] data) { (u_?#PjX  
sort(data, IMPROVED_QUICK); \]:}lVtxS  
} Z 91{*?  
private static String[] name={  L- '{   
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" k vu SE  
}; pq T+lai)#  
]3KMFV}  
private static Sort[] impl=new Sort[]{ hRU5CH/!  
new InsertSort(), R>C^duos.  
new BubbleSort(), <2.87:  
new SelectionSort(), DqH?:`G  
new ShellSort(), d*B^pDf  
new QuickSort(), *UerLpf  
new ImprovedQuickSort(), W{El^')F  
new MergeSort(), ^Rpy5/d  
new ImprovedMergeSort(), 4uX|2nJ2!;  
new HeapSort() 8\lRP,-  
}; mJ #|~I*Z-  
 /# FU"  
public static String toString(int algorithm){ NMy+=GZu^  
return name[algorithm-1]; HL`=zB%  
} dvc=<!"'S  
vvi[+$M  
public static void sort(int[] data, int algorithm) { @$*LU:[  
impl[algorithm-1].sort(data); &s{" Vc9]  
} yIq. m=  
|T; ]%<O3E  
public static interface Sort { Au\j6mB  
public void sort(int[] data); =xs"<Q*w>  
} S - N [  
/0_^Z2  
public static void swap(int[] data, int i, int j) { xHpB/P~  
int temp = data; ahUc ;S:v#  
data = data[j]; v'e5j``=  
data[j] = temp; 6 3NhD  
} ):L ; P)  
} AY(z9 &;6  
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