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
  • 5111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。 V470C@  
插入排序: 5PnDN\  
k;L6R!V  
package org.rut.util.algorithm.support; D#)b+7N-  
E+JqWR5  
import org.rut.util.algorithm.SortUtil; H7j0K~U0  
/** 4a]P7fx-  
* @author treeroot &! ?eL  
* @since 2006-2-2 z$xo$R(  
* @version 1.0 GM<-&s!Uj  
*/ b%5f&N  
public class InsertSort implements SortUtil.Sort{ OBAi2Vw  
&8 x-o,  
/* (non-Javadoc) yvYad  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) vZoaT|3 G]  
*/ w1DV\Ap*  
public void sort(int[] data) { Ub!(H^zu  
int temp; O1mKe%'|  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ,4oo=&  
} xZv#Es%#  
} pV"R|{#V  
} N8FF3}> g  
@|%2f@h  
} #lW`{i  
Wiu"k%Qsh  
冒泡排序: &JI8]JmU)  
(J!+(H 8  
package org.rut.util.algorithm.support; Z)aUt Srf  
_f:W?$\ho  
import org.rut.util.algorithm.SortUtil; 3Ims6I]  
# 4PVVu<  
/** &pp|U}  
* @author treeroot :[!j?)%>  
* @since 2006-2-2 abLnI =W`  
* @version 1.0 uU25iDn  
*/ Z/;aT -N  
public class BubbleSort implements SortUtil.Sort{ I(0~n,=j  
iW /}#  
/* (non-Javadoc) ox (%5c)b|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &IB|rw'9  
*/ {,~3.5u   
public void sort(int[] data) { <3hRyG@vB  
int temp; igR";OQk  
for(int i=0;i for(int j=data.length-1;j>i;j--){ %-0t?/>  
if(data[j] SortUtil.swap(data,j,j-1); )%@J=&G8TT  
} /RC7"QzL  
} >&5DsV.B  
} q#=(e:aCb  
} 5N&?KA-  
J~UuS+Ufv  
} Tyf`j,=  
Eg3q!J&Z  
选择排序: C-[eaHJ'$  
p"ZG%Ow5Q]  
package org.rut.util.algorithm.support; w=J3=T@TD  
:A'y+MnK<  
import org.rut.util.algorithm.SortUtil; ';=O 0)u  
'(L7;+E  
/** e;}7G  
* @author treeroot Ak"m 85B  
* @since 2006-2-2 KNIn:K^/  
* @version 1.0 )f<z% :I+Z  
*/ u^qT2Ss0  
public class SelectionSort implements SortUtil.Sort { ah+iZ}E%  
wx0j(:B]  
/* X*@dj_,  
* (non-Javadoc) _t #k,;  
* o$lM$E:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _8_R 1s  
*/ 4u5-7[TZ  
public void sort(int[] data) { ? '{SX9  
int temp; @7j AL-  
for (int i = 0; i < data.length; i++) { v<(  
int lowIndex = i; "mvt>X  
for (int j = data.length - 1; j > i; j--) { h|{]B,.Lh  
if (data[j] < data[lowIndex]) { JHTSUq  
lowIndex = j; Hn+~5@.  
} 8&`LYdzt  
} u frL<]A  
SortUtil.swap(data,i,lowIndex); pohp&Tcm  
} }oGA-Qc}B  
} y ~!Zg}o  
'Xq| Kf (  
} Ks`J([(W&  
]>nk"K!%  
Shell排序: p xa*'h"b^  
PKg@[<g43  
package org.rut.util.algorithm.support; EVC]sUT  
~;{; ,8!)  
import org.rut.util.algorithm.SortUtil; 54R#W:t  
.Od !0(0  
/** '=8d?aeF  
* @author treeroot 'XP7" N47O  
* @since 2006-2-2 MJ [m  
* @version 1.0 LR.<&m%~.  
*/ 41?HY{&2  
public class ShellSort implements SortUtil.Sort{ /zVOK4BqN+  
Oso#+  
/* (non-Javadoc) *@=/qkaJaI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~^fZx5  
*/ XXcl{1Kp!@  
public void sort(int[] data) { Jgd'1'FOs  
for(int i=data.length/2;i>2;i/=2){ e_ANUll1  
for(int j=0;j insertSort(data,j,i); 8_B4?` k  
} ;dZZ;#k%  
} Mc_YPR:C  
insertSort(data,0,1); 9u}Hmb  
} lbl?k5  
a>I+]`g  
/** _ y8Wn}19f  
* @param data 'Nn zk  
* @param j ""F5z,'  
* @param i f=gW]x7'R+  
*/ V/ uP%'cd  
private void insertSort(int[] data, int start, int inc) { '3D XPR^B6  
int temp; ca*DZG/  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ']z{{UNUN  
} x vl#w  
} rkCx{pe9  
} 4`]^@"{  
]i ,{  
} D_^ nI:  
KD7dye  
快速排序: Tg)| or/ %  
O6a<`]F  
package org.rut.util.algorithm.support; wX5tp1 ?1J  
ipgC RHE  
import org.rut.util.algorithm.SortUtil; j8{i#;s!"  
qqr?!vem6  
/** f:|1_j  
* @author treeroot J1RJ*mo7,  
* @since 2006-2-2 J76kkW`5  
* @version 1.0 QIvVcfM^  
*/ {e9@-  
public class QuickSort implements SortUtil.Sort{ JZ*/,|1}EC  
BmMGx8P  
/* (non-Javadoc) 6x[}g  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A_ N;   
*/ ZC`wO%,  
public void sort(int[] data) { \[_t]'p  
quickSort(data,0,data.length-1); a /l)qB#  
} 0s3%Kqi[  
private void quickSort(int[] data,int i,int j){ g:D>.lKd  
int pivotIndex=(i+j)/2; _w(7u(Z  
file://swap R0]1xGz  
SortUtil.swap(data,pivotIndex,j); (\hx` Yh=>  
i8[t=6Rm@  
int k=partition(data,i-1,j,data[j]); 0g y/:T  
SortUtil.swap(data,k,j); %D}kD6=  
if((k-i)>1) quickSort(data,i,k-1); aweV#j(y  
if((j-k)>1) quickSort(data,k+1,j); {V$|3m>:*  
D4-ifsP  
} JG!mc7  
/** Cc' 37~6~P  
* @param data 8\ +T8(m  
* @param i G"U9E5O  
* @param j 7>Ouqxh21  
* @return K'Tm_"[u  
*/ kmsb hYM)  
private int partition(int[] data, int l, int r,int pivot) { eH3JyzzP,  
do{ &5spTMw8  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); O-~ 7b(Z  
SortUtil.swap(data,l,r); &<5zqsNJ\a  
} wh\}d4gN  
while(l SortUtil.swap(data,l,r); Ng>5?F^v  
return l; 3kIN~/<R+7  
} Ym{tR,g7  
\y)rt )  
} w\}ieI8J  
|\<`Ib4j  
改进后的快速排序: ~'iHo]9O  
'()xHEGl3  
package org.rut.util.algorithm.support; }=UHbU.n~!  
E$:*NSXj  
import org.rut.util.algorithm.SortUtil; W*4-.*U8a  
ox>^>wR*  
/** .TMs bZ|j  
* @author treeroot ^aMg/.j  
* @since 2006-2-2 YX7L?=;.@  
* @version 1.0 *:YiimOY"  
*/ KRLQ #,9  
public class ImprovedQuickSort implements SortUtil.Sort { 3yY}04[9<  
q J=~Y|(  
private static int MAX_STACK_SIZE=4096; /-ch`u md  
private static int THRESHOLD=10; 2*< nu><b  
/* (non-Javadoc) w%VU/6~  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HU }7zK2  
*/ C:* *;=.  
public void sort(int[] data) { YTX,cj#D^&  
int[] stack=new int[MAX_STACK_SIZE]; i]y<|W)Q3  
L9 \1+rq  
int top=-1; FLCexlv^  
int pivot; G5RR]?@6V  
int pivotIndex,l,r; 5C*Pd Wpl  
t#/YN.@r  
stack[++top]=0; !t %j?\f  
stack[++top]=data.length-1; VT%NO'0  
/W30~y  
while(top>0){ ;| 5F[  
int j=stack[top--]; zh`<WN&H  
int i=stack[top--]; wj<6kG  
/y#f3r+*2  
pivotIndex=(i+j)/2; =Z3F1Cq?  
pivot=data[pivotIndex]; f ue(UMF~  
0r] t`{H  
SortUtil.swap(data,pivotIndex,j); }6}l7x  
E7 Ul;d  
file://partition '&R2U_  
l=i-1; @=Uh',F  
r=j; i2A81>68<  
do{ u+e{Mim  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Uq,^Wy  
SortUtil.swap(data,l,r); Y3cMC)  
} hh)`645=x  
while(l SortUtil.swap(data,l,r); D|L9Vs`  
SortUtil.swap(data,l,j); ' !cCMTj  
(KD RkE|=  
if((l-i)>THRESHOLD){ ksqQM  
stack[++top]=i; `$<.pOm  
stack[++top]=l-1; |'8Nh  
} Nk 8B_{  
if((j-l)>THRESHOLD){ 7Lc]HSZo,  
stack[++top]=l+1; <X^@*79m  
stack[++top]=j; eIEeb,#i  
} /cdC'g  
|`,2ri*5A  
} \fr~  
file://new InsertSort().sort(data); IH&|Tcf\  
insertSort(data); V`d,qn)i  
} Rz:]\jcIT/  
/** gHEu/8E  
* @param data b:m88AG  
*/ gNrjo=  
private void insertSort(int[] data) { UiP"Ixg6  
int temp; o.g V4%  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); f#"J]p  
} { Fb*&|-n  
} bMu+TgAT,  
} vHc%z$-d  
qzLPw*;  
} SC!RbW@3  
 #ut  
归并排序: ]e^&aR5f"  
Jk11fn;\>  
package org.rut.util.algorithm.support; kGS;s B  
m%?pf2%I#  
import org.rut.util.algorithm.SortUtil; xY8$I6  
t]g-CW 3  
/** o5O#vW2Il&  
* @author treeroot (k)v!O-  
* @since 2006-2-2 ww3-^v  
* @version 1.0 9Cp-qA%t  
*/ ;_I8^?d  
public class MergeSort implements SortUtil.Sort{ t%FwXaO#  
^4hO  
/* (non-Javadoc) ^Za-`8#`L  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) EhvX)s  
*/ hJ? O],4J  
public void sort(int[] data) { I@~QV@U  
int[] temp=new int[data.length]; _pG-qK  
mergeSort(data,temp,0,data.length-1); 6=/F$|  
} 9uO 2Mm  
.},'~NM]  
private void mergeSort(int[] data,int[] temp,int l,int r){ On.{!:"I/  
int mid=(l+r)/2; \fd v]f  
if(l==r) return ;  RVmh6m  
mergeSort(data,temp,l,mid); 9};8?mucr  
mergeSort(data,temp,mid+1,r); ZzpUUH/r  
for(int i=l;i<=r;i++){ +Q)XH>jh   
temp=data; n\D&!y[]F  
} ~&{S<Wl  
int i1=l; "| g>'wM*  
int i2=mid+1; (gU!=F?#m  
for(int cur=l;cur<=r;cur++){ S Lj!v&'  
if(i1==mid+1) iB yf{I>+  
data[cur]=temp[i2++]; pRpBhm;iJ  
else if(i2>r) djG*YM\B  
data[cur]=temp[i1++];  KC6.Fr{  
else if(temp[i1] data[cur]=temp[i1++]; }?i0  I  
else  `25yE/  
data[cur]=temp[i2++]; M h}m;NI  
} }C?'BRX  
} 2\{M:\2o  
7U"g3 a)=  
} itP,\k7>d  
=BAr .m+"  
改进后的归并排序: _8J.fT$${  
p38-l'{#  
package org.rut.util.algorithm.support; !;{7-~  
HM1Fz\Sf  
import org.rut.util.algorithm.SortUtil; q`7PhA  
:\c ^*K(9  
/** ie95rZp  
* @author treeroot iHf$  
* @since 2006-2-2 & h)yro  
* @version 1.0 SHgN~ Um  
*/ 4l'fCZhA}  
public class ImprovedMergeSort implements SortUtil.Sort { ZvX*t)VjTz  
]Q1yNtN  
private static final int THRESHOLD = 10; _6hQ %hv8  
F~W6Bp^W  
/* ueWEc^_>  
* (non-Javadoc) 3(N$nsi  
* NwvC[4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) B dfwa  
*/ xm~`7~nFR  
public void sort(int[] data) { _D&598xx  
int[] temp=new int[data.length]; |SSSH  
mergeSort(data,temp,0,data.length-1); /C:gKy4  
} s!zx} 5  
'<)n8{3Q5w  
private void mergeSort(int[] data, int[] temp, int l, int r) { eC4[AX6e  
int i, j, k; 8kIksy  
int mid = (l + r) / 2; 2@],ZLa  
if (l == r) r Z$O?K  
return; Of#u  
if ((mid - l) >= THRESHOLD) +TL%-On  
mergeSort(data, temp, l, mid); pah'>dAL  
else K@]4g49A/j  
insertSort(data, l, mid - l + 1); T&bY a`f]  
if ((r - mid) > THRESHOLD) Dml;#'IF3  
mergeSort(data, temp, mid + 1, r); #:_Kws>+  
else G~a ZJ,  
insertSort(data, mid + 1, r - mid); Dx?,=~W9  
JXQO~zj  
for (i = l; i <= mid; i++) { RbnVL$c  
temp = data; i&fuSk EP  
} &6!)jIWJ  
for (j = 1; j <= r - mid; j++) {  8dA~\a  
temp[r - j + 1] = data[j + mid]; #zs~," dRv  
} T?0eVvM  
int a = temp[l]; O0v}43J [  
int b = temp[r]; Z5n1@a __  
for (i = l, j = r, k = l; k <= r; k++) { qe#tj/aZ  
if (a < b) { 2]*OQb#O6e  
data[k] = temp[i++]; M|h3Wt~7  
a = temp; !f [_+CD  
} else { @,+5y\]C  
data[k] = temp[j--]; PC8Q"O  
b = temp[j];  <kqo^  
} >+1duAC  
} cV6D<,)  
} ED gag  
.`eN8Dl1  
/** h[Y1?ln&h  
* @param data K\r8g=U  
* @param l + &Eqk  
* @param i YD6'#(  
*/ (w3YvG.  
private void insertSort(int[] data, int start, int len) { 2/^3WY1U  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); ES7s1O$#  
} ouQ T  
} M6j y\<a  
} ~36!?&eA8  
} d7upz]K9g  
q|(HsLs  
堆排序: tyFzSrfc  
;6$jf:2m  
package org.rut.util.algorithm.support; KZE,bi: ~  
rb.N~  
import org.rut.util.algorithm.SortUtil; n_A3#d<9  
6bC3O4Rw  
/** _`T_">9r  
* @author treeroot ?fSG'\h>  
* @since 2006-2-2 S,UDezxg  
* @version 1.0 b4kgFA  
*/ a1lh-2x X  
public class HeapSort implements SortUtil.Sort{ kDxFloK  
u6JM]kR  
/* (non-Javadoc) rEW b"  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Svmy(w~m  
*/ Y$_B1_  
public void sort(int[] data) { wc4=VC"y  
MaxHeap h=new MaxHeap(); ~f98#43  
h.init(data); aW7^d'ZZ\  
for(int i=0;i h.remove(); 8l`*]1.W<  
System.arraycopy(h.queue,1,data,0,data.length); f]CXu3w(J  
} h:|qC`}  
wmLs/:~  
private static class MaxHeap{ YS0<qSN  
} q8ASYNc  
void init(int[] data){ 4tBYR9|  
this.queue=new int[data.length+1];  =7eV/3  
for(int i=0;i queue[++size]=data; 8d'0N  
fixUp(size); (jE9XxQY  
} 6i/(5 nQ  
} 26h21Z16q  
b ]KBgZ  
private int size=0; R\[e!g*I  
sPIn|d  
private int[] queue; ;i+jJ4  
 b>ySv  
public int get() { z2GY:<s  
return queue[1]; =Xr.'(U  
} 1yhDrpm  
Dlvz )  
public void remove() { s$j,9uRr  
SortUtil.swap(queue,1,size--); k<?b(&`J  
fixDown(1); dy[X3jQB  
} (sZ"iGn%  
file://fixdown 6'f;-2  
private void fixDown(int k) { ckCE1e>s  
int j; mC#>33{  
while ((j = k << 1) <= size) { 0g8NHkM:2a  
if (j < size %26amp;%26amp; queue[j] j++; y:uE3Apm  
if (queue[k]>queue[j]) file://不用交换 gB33?  
break; ;$g?T~v7  
SortUtil.swap(queue,j,k); V'gh 6`v  
k = j; 5{,<j\#L  
} r~['VhI!;E  
} sW\!hW1*x  
private void fixUp(int k) { S_H+WfIHV'  
while (k > 1) { RViAwTvY  
int j = k >> 1; 8}:nGK|kx  
if (queue[j]>queue[k]) h<QY5=S F  
break; V0mn4sfs  
SortUtil.swap(queue,j,k); Ny/MJ#Lq  
k = j; *vMn$,^0h9  
} )^hbsMhO  
} #RLt^$!H  
4*;MJ[|  
} %?/X=}sE  
dWBA1p  
} JucY[`|JV  
y@yD5$/  
SortUtil: 8&dF  
\9EjClf o  
package org.rut.util.algorithm; E]r?{t`]  
w0unS`\4  
import org.rut.util.algorithm.support.BubbleSort; |R:'\+E  
import org.rut.util.algorithm.support.HeapSort; wMN]~|z>  
import org.rut.util.algorithm.support.ImprovedMergeSort; |_U= z;Y  
import org.rut.util.algorithm.support.ImprovedQuickSort; >9J:Uo1z  
import org.rut.util.algorithm.support.InsertSort; Tlr v={  
import org.rut.util.algorithm.support.MergeSort; Xch~ 1K  
import org.rut.util.algorithm.support.QuickSort; .=; ;  
import org.rut.util.algorithm.support.SelectionSort; )V9bI(v  
import org.rut.util.algorithm.support.ShellSort; uyx 2;f  
u ^RxD^=L  
/** BY*8ri^u  
* @author treeroot #g!.T g'  
* @since 2006-2-2 alb.g>LNPP  
* @version 1.0 TA~{1_l  
*/ `Q,H|hp;k;  
public class SortUtil { X}0cCdW  
public final static int INSERT = 1; k9F=8q  
public final static int BUBBLE = 2; wy2 D;;  
public final static int SELECTION = 3; Eh4= ZEX  
public final static int SHELL = 4; ?aMOZn?  
public final static int QUICK = 5; 69.NPy@  
public final static int IMPROVED_QUICK = 6; TD_Oo-+\  
public final static int MERGE = 7; *Pg2c(Vg  
public final static int IMPROVED_MERGE = 8; ySI !d|_  
public final static int HEAP = 9; g9F?z2^  
bg0Wnl  
public static void sort(int[] data) { \l3h0R  
sort(data, IMPROVED_QUICK); ybUaTD@?}b  
} 4B][S'f  
private static String[] name={ P!k{u^$L  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 5@W j>:w  
}; kG*~ |ma  
NGWxN8P6  
private static Sort[] impl=new Sort[]{ / XIhj  
new InsertSort(), +ck}l2&#  
new BubbleSort(), .N(p=9  
new SelectionSort(), bZV/l4TU  
new ShellSort(), jz0T_\8D`  
new QuickSort(), 3;Fhg!Z O  
new ImprovedQuickSort(), vvOV2n .WD  
new MergeSort(), 9nbLg5P  
new ImprovedMergeSort(), TS5Q1+hWHV  
new HeapSort() 3R V R  
}; cM7[_*Ot<m  
rrv%~giU  
public static String toString(int algorithm){ [0 e_*  
return name[algorithm-1]; rVsJ`+L  
} Af{"pzY  
Rx}Gz$   
public static void sort(int[] data, int algorithm) { vr^qWn  
impl[algorithm-1].sort(data); ,Y48[_ymm  
} Du){rVY^d  
sx<%2  
public static interface Sort { %~S&AE-  
public void sort(int[] data); DlNX 3  
} |^H5^k "Bv  
;*&-C9b  
public static void swap(int[] data, int i, int j) { Yz<1 wt7;  
int temp = data; @s^-.z  
data = data[j]; RpYERAgT  
data[j] = temp; 7VI*N)OZ8  
} @\I#^X5lv  
} Rws3V"{`[  
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
温馨提示:欢迎交流讨论,请勿纯表情、纯引用!
认证码:
验证问题:
10+5=?,请输入中文答案:十五