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
  • 7538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。 gT?:zd=;  
插入排序: ~#pQWa5  
]?-8[v~{C  
package org.rut.util.algorithm.support; tg.[.v Ks  
{f<2VeJ  
import org.rut.util.algorithm.SortUtil; j/ow8Jmc*  
/** Am{Vtl)i  
* @author treeroot \mbm$E+X  
* @since 2006-2-2 ot8UuBq  
* @version 1.0 :bNqK0[rS  
*/ au1uFu-  
public class InsertSort implements SortUtil.Sort{ U\s.fIr  
:G!i]1x<  
/* (non-Javadoc) k><k|P[|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  _xjw:  
*/ #R-l2OO^]  
public void sort(int[] data) { `O/1aW1  
int temp; DI"KH)XD  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); iGlg@  
} 14Y_ oH9  
} .!/w[Z]  
} pMndyuoJl  
waT'|9{  
} rom`%qp^  
Gl; xd  
冒泡排序: ~>6d}7xs  
Rr A9@95+  
package org.rut.util.algorithm.support; z_nv|5"  
YS],o'T  
import org.rut.util.algorithm.SortUtil; ktF\f[  
[ *P~\' U  
/** 57@6O-t-  
* @author treeroot g6aIS^mU  
* @since 2006-2-2 2 8>  
* @version 1.0 \Hb"bv  
*/ Z{XF!pS%H  
public class BubbleSort implements SortUtil.Sort{ @-zL"%%dw'  
%j $r"  
/* (non-Javadoc) [A\DuJx  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) GW{e"b/x  
*/ S,0h &A9  
public void sort(int[] data) { 8/gA]I 6=#  
int temp; ZQ1,6<^9i[  
for(int i=0;i for(int j=data.length-1;j>i;j--){ l/xpAx  
if(data[j] SortUtil.swap(data,j,j-1); FT8<a }o  
} 7up~8e$_  
} <DR$WsDG  
} Z; 6N7U  
} xB :]{9r  
80_}}op ?8  
} ?*AhGza/  
MZd?cS  
选择排序: OV2/?  
WQiIS0BJ *  
package org.rut.util.algorithm.support; n?(sn  
@oKW$\  
import org.rut.util.algorithm.SortUtil; u7nTk'#r  
E[NszM[P  
/** tNvjwgV\  
* @author treeroot TTagZI$  
* @since 2006-2-2 l~ Hu#+O  
* @version 1.0 lJvfgP-j  
*/ e+~@"^|  
public class SelectionSort implements SortUtil.Sort { B=}s7$^  
`c)[aP{vN  
/* <sTY<iVR  
* (non-Javadoc)  MFyi#nq  
* :@4+}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7I/a  
*/ }vxRjO,  
public void sort(int[] data) { f4;V7DJ  
int temp; vd9PBN  
for (int i = 0; i < data.length; i++) { U<|*V5   
int lowIndex = i; sK@]|9ciQ  
for (int j = data.length - 1; j > i; j--) { P"{yV?CNg  
if (data[j] < data[lowIndex]) { Hb3..o:  
lowIndex = j; 9fy[%M  
}  )mH(Hx  
} 1\aV4T  
SortUtil.swap(data,i,lowIndex);  G){A&F  
} Y )68  
} Nd He::  
/H*[~b   
} (qw;-A W8  
.npD<*  
Shell排序: t>vr3)W  
9^CuSj  
package org.rut.util.algorithm.support; emHaZhh  
$\#wsI(  
import org.rut.util.algorithm.SortUtil; q{}U5(,{0  
KwY6pF*  
/** =j%ORD[  
* @author treeroot JMfv|>=  
* @since 2006-2-2 -I:L6ft8  
* @version 1.0 p^C$(}Yh  
*/ C:_-F3|]cJ  
public class ShellSort implements SortUtil.Sort{  z $iI  
q}]z8 L  
/* (non-Javadoc) h ^Wm03w  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p#N2K{E  
*/ -n:;/ere7-  
public void sort(int[] data) { xUPg~c0  
for(int i=data.length/2;i>2;i/=2){ je74As[  
for(int j=0;j insertSort(data,j,i); bSW~hyI w  
} Ow {NI-^K  
} |[@v+koq  
insertSort(data,0,1); LYuMR,7E  
}  Cy5M0{  
~3$:C#"Dl  
/** m'eM&1Ba  
* @param data $VeQvm*  
* @param j  n[7=  
* @param i brdY97s4  
*/ BO>[\!=y  
private void insertSort(int[] data, int start, int inc) { .X"\ Mg  
int temp; hdpA& OteR  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); '/fueku  
} IIAm"=*  
} SpM Hq_MLM  
} (/|f6_9!  
lrmz'M'  
} &ZJ$V  
Ku8qn \2"  
快速排序: T9AFL;1  
{;={ abj  
package org.rut.util.algorithm.support; KS;Wr6]@(O  
Vah.tOU  
import org.rut.util.algorithm.SortUtil; ~Dj_N$_+9  
npcL<$<6X  
/** {WuUzq`  
* @author treeroot ~./M5P!\  
* @since 2006-2-2 cK t8e^P  
* @version 1.0 @|}=W Q  
*/ `3vt.b  
public class QuickSort implements SortUtil.Sort{ lsOZ%p%fV  
6S?*z `v  
/* (non-Javadoc) nn/_>%Y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) l_ycB%2e^  
*/ A"T*uv|  
public void sort(int[] data) { vUg o)C#<  
quickSort(data,0,data.length-1); +w+qTZyky  
} 6zJ>n~&(  
private void quickSort(int[] data,int i,int j){ WC 5v#*Jd  
int pivotIndex=(i+j)/2; P26YJMJ'  
file://swap -;t]e6[  
SortUtil.swap(data,pivotIndex,j); "3VMjF\  
nNcmL/(  
int k=partition(data,i-1,j,data[j]); fg8U* 7  
SortUtil.swap(data,k,j); |79n 1;+\?  
if((k-i)>1) quickSort(data,i,k-1); +7bV  
if((j-k)>1) quickSort(data,k+1,j); m>-(c=3  
Z#062NL "  
} }t.VH:02y  
/** <{Ir',;  
* @param data /yL:_6c-  
* @param i A[X~:p.^G  
* @param j T\o!^|8  
* @return GA@Zfcg  
*/ oF#]<Z\  
private int partition(int[] data, int l, int r,int pivot) { Fd@:*ER  
do{ 0:3<33]x  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); >-YWq  
SortUtil.swap(data,l,r); R(F+Xg je  
} 4) ~ GHb  
while(l SortUtil.swap(data,l,r); X8=s k  
return l; `)s>},8W!  
} EcW$'>^  
|{H-PH*Iz  
} rWMG_eP:  
_rf  
改进后的快速排序: C/x<_VJzN/  
l/w<R  
package org.rut.util.algorithm.support; e6WKZ~ v o  
o]|a5. O  
import org.rut.util.algorithm.SortUtil; :]oRx  
=e$6o2!'}  
/** GS4 HYF  
* @author treeroot |,Xrt8O/[  
* @since 2006-2-2 0 SeDBs  
* @version 1.0 L(i*v5?  
*/ %8lF%uu!x  
public class ImprovedQuickSort implements SortUtil.Sort { uM<6][^`  
)R`w{V  
private static int MAX_STACK_SIZE=4096; `* =Tf  
private static int THRESHOLD=10; @dj 2#  
/* (non-Javadoc) DIu rFDQSS  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "' hc)58y  
*/ r&t)%R@q  
public void sort(int[] data) { + B#3!  
int[] stack=new int[MAX_STACK_SIZE]; xW;-=Q  
c~+;P(>  
int top=-1; $G5;y>  
int pivot; =@d IM  
int pivotIndex,l,r; &[hq !v  
1wpeYn7>W  
stack[++top]=0; 9\]%N;;Lo  
stack[++top]=data.length-1; L27i_4E,  
AZCbUkq  
while(top>0){ m1k+u)7kD  
int j=stack[top--]; yjbqby7  
int i=stack[top--]; + fQ=G/  
@,63%  
pivotIndex=(i+j)/2; FN&.PdRT  
pivot=data[pivotIndex]; ,afh]#  
/f9jLY +  
SortUtil.swap(data,pivotIndex,j); +Zx+DW cq  
=_`4HDr  
file://partition ]&3UF?  
l=i-1; 4 }l,F  
r=j; XTHy CK  
do{ 0.+"K}  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); wPDA_ns~  
SortUtil.swap(data,l,r); *FkG32k  
} fL8+J]6A6  
while(l SortUtil.swap(data,l,r); mlR*S<Z  
SortUtil.swap(data,l,j); 05\A7.iy  
eyZ /%4'q  
if((l-i)>THRESHOLD){ 9tVA.:FOZ  
stack[++top]=i; PX3rHKK {  
stack[++top]=l-1; g(\FG  
} &Z_W*D  
if((j-l)>THRESHOLD){ `/'Hq9$F<"  
stack[++top]=l+1; [e )j,Q1  
stack[++top]=j; !aD/I%X  
} DYU+?[J  
f~u]fpkz  
} *f:^6h  
file://new InsertSort().sort(data); J'O</o@e  
insertSort(data); CUT D]:\  
} (z0S5#g ,x  
/** c<j2wKz  
* @param data tt`j!!  
*/ e uS"C*  
private void insertSort(int[] data) { E ?(  
int temp; yVm~5Y&Z  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Vh:%e24Z  
} 4!<8Dd  
} lkK+Fm  
} ZD] ^Y}  
T^8t<S@`  
} ] 5lp.#EB  
F kp;G  
归并排序: &AmTXW  
mxhO: .l  
package org.rut.util.algorithm.support; w} *;^n  
u=feR0|8  
import org.rut.util.algorithm.SortUtil; :04sB]H  
[rv"tz=  
/** Crmxsw.W^Y  
* @author treeroot a&~d,vC  
* @since 2006-2-2 !Ac<A.  
* @version 1.0 bort2k  
*/ 3qPj+@  
public class MergeSort implements SortUtil.Sort{ JS r& S[  
A^2VH$j]+  
/* (non-Javadoc) 9@ 6y(#s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (Bd8@}\u_  
*/ v2:A 4Pd:+  
public void sort(int[] data) { Mxn>WCPo  
int[] temp=new int[data.length]; dJM)~Ay-  
mergeSort(data,temp,0,data.length-1); W XDl\*n  
} \5 IB/ *  
<<gk< _7`  
private void mergeSort(int[] data,int[] temp,int l,int r){ V& <vRIsN  
int mid=(l+r)/2; 3>%rm%ffE  
if(l==r) return ; f n )m$\2  
mergeSort(data,temp,l,mid); [f}YXQ0N)  
mergeSort(data,temp,mid+1,r); *{8K b>D  
for(int i=l;i<=r;i++){ "qUUH4mR`  
temp=data; `:!mPNW#  
} eD/O)X  
int i1=l; ~;k-/Z"  
int i2=mid+1; ^AK<]r<?L?  
for(int cur=l;cur<=r;cur++){ Juj"cjob  
if(i1==mid+1) HDZB)'I  
data[cur]=temp[i2++]; EV| 6._Z(D  
else if(i2>r) "5u*C#T2$  
data[cur]=temp[i1++]; %mPIr4$Pg  
else if(temp[i1] data[cur]=temp[i1++]; TaeN?jc5  
else An!1>`8r  
data[cur]=temp[i2++]; $^?"/;8P5  
} [ !/u,  
} 6lOT5C eJ"  
(:Rj:8{  
} 9F)+p7VJq  
JsI` #  
改进后的归并排序: DZ -5A  
6gV-u~j[#  
package org.rut.util.algorithm.support; {/G~HoY1i  
oBiJiPE=`  
import org.rut.util.algorithm.SortUtil; M_*"g>Z  
~wf&78  
/** YKKZRlQo  
* @author treeroot 9`Bmop  
* @since 2006-2-2 B-PN +P2  
* @version 1.0 "n3r,  
*/ S0\QZ/je  
public class ImprovedMergeSort implements SortUtil.Sort { :["iBrFp  
~kPHf_B;z  
private static final int THRESHOLD = 10; esU9  
-qaJ@T+J+7  
/* ZN#mu]jC?  
* (non-Javadoc) } M-^A{C\%  
* ?aOx b  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N,fEta6  
*/ _K["qm{X_  
public void sort(int[] data) { #&<>|m  
int[] temp=new int[data.length]; q ww*  
mergeSort(data,temp,0,data.length-1); ]R[j ]E.  
} 3y?I^ .B  
)(yD"]co  
private void mergeSort(int[] data, int[] temp, int l, int r) { }-QFMPXhG  
int i, j, k; Kab"r_'  
int mid = (l + r) / 2; E{x<P0 ;  
if (l == r) 0N.B =j|  
return; 0Cd )w4C  
if ((mid - l) >= THRESHOLD) BUB$k7{z  
mergeSort(data, temp, l, mid); Gy 0 m  
else UW%zR5q  
insertSort(data, l, mid - l + 1); }2c)UQD8  
if ((r - mid) > THRESHOLD) ,9;RP/"7  
mergeSort(data, temp, mid + 1, r); 2$ m#)*\  
else -Uj)6PzGu  
insertSort(data, mid + 1, r - mid); C#<b7iMg  
,5}%_  
for (i = l; i <= mid; i++) {  *-Y`7=^$  
temp = data; &w15 GO;4  
} i2.g}pM.A  
for (j = 1; j <= r - mid; j++) { b)ytm=7ha  
temp[r - j + 1] = data[j + mid]; pUbf]3 t  
} %-9?rOr  
int a = temp[l]; J:W|2U="  
int b = temp[r]; V+`gkWe/  
for (i = l, j = r, k = l; k <= r; k++) { 24{Tl q3  
if (a < b) { @ ;T|`Y=7  
data[k] = temp[i++]; Hwb+@'o  
a = temp; M9[52D!{  
} else { G-7!|&  
data[k] = temp[j--]; a ]~Rp  
b = temp[j]; gR5 EK$  
} v9*ugu[K9  
} A]<+Aq@{  
} [d"]AF[#  
d `MTc  
/** <'T:9  
* @param data Z%&$_-yJ  
* @param l -9PJ4"H  
* @param i  6chcpP0  
*/ Fw{:fFZC[  
private void insertSort(int[] data, int start, int len) { y~ 2C2'7  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); L i g7Ac,  
} nm#ISueh  
} DtEvt+h  
} IvZ,|R?  
} ztS:1\  
}>93X0%r  
堆排序: 7Gh+EJJ3I  
kh4., \'  
package org.rut.util.algorithm.support; WHF[l1  
W( 4Mvd  
import org.rut.util.algorithm.SortUtil; lwSZ pS  
[,bra8f[C  
/** a^vTBJXo  
* @author treeroot cy-o@U"s8  
* @since 2006-2-2 jT'09r3P  
* @version 1.0 !+FrU'^  
*/ ~:krJ[=  
public class HeapSort implements SortUtil.Sort{ |l-~,eRvi5  
&xWej2a!  
/* (non-Javadoc) d6+$[4w  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .IU\wN  
*/ Rs@>LA  
public void sort(int[] data) { WqO4_;X6/  
MaxHeap h=new MaxHeap(); 4j1$1C{  
h.init(data); MD):g @  
for(int i=0;i h.remove(); F$sDmk#  
System.arraycopy(h.queue,1,data,0,data.length); 7!;H$mxP  
} tE8aL{<R  
O7"16~ a  
private static class MaxHeap{ i7XM7 +}  
3<x1s2U  
void init(int[] data){ ,+4*\yI3l  
this.queue=new int[data.length+1]; un F=";9H  
for(int i=0;i queue[++size]=data; ]*Cq'<h$  
fixUp(size); ^`S.Mw.  
} nYnB WDnV  
}  ;?G..,  
6}cN7wnm j  
private int size=0; [xdi.6 %  
/ q| o  
private int[] queue; Pi hpo  
} *jmW P  
public int get() { ~H c5M5m  
return queue[1]; i7b^b>B|e  
} ElA(1o|9I  
R=J5L36F  
public void remove() { sj3[ny;b  
SortUtil.swap(queue,1,size--); /:d6I].  
fixDown(1); "x0/i?pqa  
} ]]NTvr  
file://fixdown 7O-fc1OTv  
private void fixDown(int k) { 1)#dgsa  
int j; K|Xr~\=  
while ((j = k << 1) <= size) { "s.hO0Z  
if (j < size %26amp;%26amp; queue[j] j++; gtnu/ Q  
if (queue[k]>queue[j]) file://不用交换 0V ZC7@  
break; F!<!)_8Q  
SortUtil.swap(queue,j,k); feJl[3@tO  
k = j; W1&"dT@  
} ||))gI`3a  
} &^7(?C' u  
private void fixUp(int k) { Vb)NWXmyu  
while (k > 1) { u}.mJDL  
int j = k >> 1; d"tR ?j  
if (queue[j]>queue[k]) nT%ko7~-  
break; 7]_zWx,r  
SortUtil.swap(queue,j,k); qP$)V3l  
k = j; `B~zB=}  
} &~c`p[  
} <1#hX(Q  
,h9?o  
} X"sJiFS  
U4[GA4DZ   
} D\| U_>  
k;Fxr%  
SortUtil: @*E=O|  
6 ZAZJn|  
package org.rut.util.algorithm; (^"2"[?a  
q+} \ (|  
import org.rut.util.algorithm.support.BubbleSort; e{H(  
import org.rut.util.algorithm.support.HeapSort; 4peRbm  
import org.rut.util.algorithm.support.ImprovedMergeSort; k=cDPu -  
import org.rut.util.algorithm.support.ImprovedQuickSort; dZox;_b  
import org.rut.util.algorithm.support.InsertSort; +sV~#%%  
import org.rut.util.algorithm.support.MergeSort; iuA_ Jr  
import org.rut.util.algorithm.support.QuickSort; phQ{<wzwp  
import org.rut.util.algorithm.support.SelectionSort; H>Ucmd;ay  
import org.rut.util.algorithm.support.ShellSort; \XO'7bNu-  
ia (&$a8X  
/** R9(Yi<CC  
* @author treeroot 1IlOU|4  
* @since 2006-2-2 ^X?uAX-RP|  
* @version 1.0 M!D6i5k,   
*/ Ss0I{0  
public class SortUtil { cvQAo|  
public final static int INSERT = 1; ~9"c64 q  
public final static int BUBBLE = 2; |+KwyHE`9  
public final static int SELECTION = 3; 1:r#m- \  
public final static int SHELL = 4; pSI8"GwQ  
public final static int QUICK = 5; -$X4RS  
public final static int IMPROVED_QUICK = 6; ! >V)x  
public final static int MERGE = 7; 1=,y +Xpw  
public final static int IMPROVED_MERGE = 8; $}'(%\7"  
public final static int HEAP = 9; ExMd$`gW  
d"n"A?nXh  
public static void sort(int[] data) { ~ivOSr7s}  
sort(data, IMPROVED_QUICK); pTB7k3g  
} <s7cCpUFP  
private static String[] name={ K- $,:28  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 6^!fuIZ;_  
}; zWv0y8[d  
B=$O4nW_b  
private static Sort[] impl=new Sort[]{ G')zDx  
new InsertSort(), bdLi _k  
new BubbleSort(), :`E p#[Wvo  
new SelectionSort(), 6B%  h  
new ShellSort(), FE]UqB  
new QuickSort(), YRCs&tgs  
new ImprovedQuickSort(), gWoUE7.3`  
new MergeSort(), s2GF*{  
new ImprovedMergeSort(), !%D';wQ,/  
new HeapSort() 1q@R04i  
}; ,Si{]y  
I{r*Y9  
public static String toString(int algorithm){ C\aHr!  
return name[algorithm-1]; qTN%9!0@9  
} 0?( uqjD:  
?Pp*BB,*y  
public static void sort(int[] data, int algorithm) { K!.t}s.t  
impl[algorithm-1].sort(data); i;U*Y *f  
} Kvo&_:  
dS3\P5D.*c  
public static interface Sort { L<0_e^8  
public void sort(int[] data); 1kw*Q:   
} 3l45(%g+  
11YJ W-V  
public static void swap(int[] data, int i, int j) { Eu:/U*j  
int temp = data; 'vZIAnB8  
data = data[j]; 16Jq*hKU  
data[j] = temp; iB"ji4[z  
} fZ5 UFq_~s  
} zfv@<'  
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:
3+5=?,请输入中文答案:八 正确答案:八