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
  • 6518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。 >xxXPvM<`  
插入排序: nG&w0de<>  
D]t~S1ycG7  
package org.rut.util.algorithm.support; t:?<0yfp&  
B| $\/xO  
import org.rut.util.algorithm.SortUtil; H @3$1h&YS  
/** !1ie:z>s  
* @author treeroot d+gk q\  
* @since 2006-2-2 yrxx+z|wR  
* @version 1.0 0hH Iz4(  
*/ m _t(rn~f6  
public class InsertSort implements SortUtil.Sort{ |_Naun=+~  
9b{g+lMZo  
/* (non-Javadoc) "2y7&#l   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }e&KO?x+  
*/ rXHHD#\oF  
public void sort(int[] data) { X+(aQ >y  
int temp; S&4w`hdD>~  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); GQYtH#  
} kw*Cr/'*  
} `^s]?  
} LM'*OtpDG  
$5q{vy  
} ?X8K$g  
lB5[#z  
冒泡排序: %xH>0  
,iA2s i  
package org.rut.util.algorithm.support; 73! x@Duh  
Y\\3g_YBF  
import org.rut.util.algorithm.SortUtil; b&U5VA0=1  
dK=D=5r,  
/** 0C9QAJa  
* @author treeroot i9#`F.7F  
* @since 2006-2-2 dpc=yXg>"c  
* @version 1.0 Gaw,1Ow!`2  
*/ uK"$=v6|  
public class BubbleSort implements SortUtil.Sort{ ie$fMBIq  
;X9MA=b  
/* (non-Javadoc) xX/Qoq (}i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1*c0\:BQ;z  
*/ Tko CyD9  
public void sort(int[] data) { % @^VrhS  
int temp; rRA_'t;uK  
for(int i=0;i for(int j=data.length-1;j>i;j--){ 2WbZ>^:Nsk  
if(data[j] SortUtil.swap(data,j,j-1); `9G$p|6  
} 1*x5/b  
} E| 8s2t  
} I'6 ed`|  
} \nWzn4f  
]aL  [  
} #!<+:y'S?  
%r}KvJgd  
选择排序: V, "AG  
\fQgiX  
package org.rut.util.algorithm.support; 1W6n[Xg  
&H p\("  
import org.rut.util.algorithm.SortUtil; 7W>}7  
a3E*%G  
/** epY;1,; >  
* @author treeroot b`;b}ug  
* @since 2006-2-2 a#^4xy:  
* @version 1.0 R!M|k%(  
*/ &bOodkOb  
public class SelectionSort implements SortUtil.Sort { +kdU%Sm  
Ff1M~MhG  
/* *{4{<O<4  
* (non-Javadoc) sN[@mAoH  
* >P]I&S-.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H$($l<G9C  
*/ ={&TeMMA  
public void sort(int[] data) { `[W)6OUCx}  
int temp; U:5*i  
for (int i = 0; i < data.length; i++) { :ayO+fr#  
int lowIndex = i; H 29 _ /  
for (int j = data.length - 1; j > i; j--) { ?M1 QJ  
if (data[j] < data[lowIndex]) { 4HYH\ey  
lowIndex = j; =tvm=  
} ,y{fqa4  
} iM-hWhU  
SortUtil.swap(data,i,lowIndex); [wpt[zG  
} (*^E7 [w  
} S)AE   
\)6?u_(u  
} -%QEzu&  
Wf&G9Be?8  
Shell排序: fb S.  
Q:xI} ]FM  
package org.rut.util.algorithm.support; N[?4yV2s  
4j=@}!TBt  
import org.rut.util.algorithm.SortUtil; #@OKp,LJ  
|H|eH~.yg&  
/** V'| g  
* @author treeroot V[2<ha[n>  
* @since 2006-2-2 14)kKWG  
* @version 1.0 <pa];k(IQL  
*/ -<VF6k<  
public class ShellSort implements SortUtil.Sort{ ^/RM;`h0  
P$#}-15?|_  
/* (non-Javadoc) W} +6L|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) oY#XWe8Om  
*/ IEKX'+t'  
public void sort(int[] data) { Z#E#P<&d  
for(int i=data.length/2;i>2;i/=2){ TlZlE^EE<  
for(int j=0;j insertSort(data,j,i); >!ZyykAs  
} 0a;F X0S&  
} Jut'xA2Dr  
insertSort(data,0,1); P)o[p(  
} ~TmHnAz  
W9V=hQ2  
/** , ?s k J  
* @param data 9?mOLDu}Q0  
* @param j CI ]U)@\U  
* @param i AXv3jH,HF  
*/ 7*8nUq  
private void insertSort(int[] data, int start, int inc) { j2&OYg  
int temp; I>(z)"1  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); b*%WAVt 2T  
} iF2IR {h  
} C@:N5},]  
} # JT%]!  
UqQZ A0e  
} (h(ZL9!  
q|Tk+JH{5  
快速排序: TbUkqABm  
|D_n4#X7u  
package org.rut.util.algorithm.support; OsuSx^}  
B 0fo[Ev  
import org.rut.util.algorithm.SortUtil; ^ZZ@!Udy  
C3`.-/{D"  
/**  K`mxb}  
* @author treeroot !"qEB2r  
* @since 2006-2-2 gM/_:+bT>P  
* @version 1.0 BqJrL/(  
*/ zqEZ+|c=  
public class QuickSort implements SortUtil.Sort{ jI pcMN<  
6(;[ov1  
/* (non-Javadoc) K^p"Z$$  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !ilDR<  
*/ \$++.%0  
public void sort(int[] data) { _rWXcK3cjr  
quickSort(data,0,data.length-1); tbt9V2U:"n  
} 63\>MQcLy  
private void quickSort(int[] data,int i,int j){ :zTj"P>"I  
int pivotIndex=(i+j)/2; H H7 gT  
file://swap cyn]>1ZM  
SortUtil.swap(data,pivotIndex,j); JSP8Lu"n  
>L3p qK   
int k=partition(data,i-1,j,data[j]); 7PPsEU:rf  
SortUtil.swap(data,k,j); ]$X=~>w  
if((k-i)>1) quickSort(data,i,k-1); 1JY90l$ME  
if((j-k)>1) quickSort(data,k+1,j); `>HthK  
@o.i2iG  
} lJpv  
/** 7VD7di=D  
* @param data +.Ukzu~s  
* @param i P>cJ~F M  
* @param j Lgw@y!Llij  
* @return kxiyF$ 9  
*/ (W6\%H2u  
private int partition(int[] data, int l, int r,int pivot) { H0:6zSsc=|  
do{ Kd21:|!t^  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); O? <_,-.  
SortUtil.swap(data,l,r); {twf7.eY  
} v*p)"J *  
while(l SortUtil.swap(data,l,r); tz> X'L  
return l; 0{@Ovc  
} M%LwC/h:,  
R1rfp;   
} p_ y*-,W (  
tg4&j$  
改进后的快速排序: %bETr"Xom  
0md{e`'q:  
package org.rut.util.algorithm.support; `o-<,  
 [?(W7  
import org.rut.util.algorithm.SortUtil; F>nrV  
3m9 E2R,  
/** B}bNl 7 ~  
* @author treeroot k0=y_7 =(5  
* @since 2006-2-2 PhL5EYn  
* @version 1.0 YtKX\q^.  
*/ 7"U,N;y  
public class ImprovedQuickSort implements SortUtil.Sort { xL#oP0d<e  
0([jD25J!  
private static int MAX_STACK_SIZE=4096; v2<gkCK^  
private static int THRESHOLD=10; IWd*"\L  
/* (non-Javadoc) %&S]cEw  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M0\[hps~X  
*/ S5p\J!k\B  
public void sort(int[] data) { =hb87g.  
int[] stack=new int[MAX_STACK_SIZE]; atnbM:t  
s_+XSH[=f  
int top=-1; ~d8o,.n`1  
int pivot; |/ 7's'  
int pivotIndex,l,r; Q |r1.  
TuR?r`P%  
stack[++top]=0; FC .-u"V  
stack[++top]=data.length-1; SQvB)NOw  
]zAg6*-/B  
while(top>0){ p#NZ\qJ  
int j=stack[top--]; ZSf+5{2m  
int i=stack[top--]; *38\&"s4_  
$fG/gYvI\  
pivotIndex=(i+j)/2; @AyW9!vV;3  
pivot=data[pivotIndex]; ZPog)d@!  
tV%\Jk),  
SortUtil.swap(data,pivotIndex,j); W u{nC  
.;Yei6H  
file://partition AE~}^(G`  
l=i-1; <T9m.:l  
r=j; G7xjW6^T  
do{ k82LCV+6  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); "6h.6_bTw  
SortUtil.swap(data,l,r); #J9XcD{1  
} dRC+|^ rSC  
while(l SortUtil.swap(data,l,r); T!$HVHh&,}  
SortUtil.swap(data,l,j); LZ$!=vg4  
Qk?Jy<Ra  
if((l-i)>THRESHOLD){ =v;@w$#  
stack[++top]=i; 9&jNdB  
stack[++top]=l-1; Z k_&Kw|  
} _3JTHf<+  
if((j-l)>THRESHOLD){ CKx}.<_  
stack[++top]=l+1; 6 d6SP)|j  
stack[++top]=j; zh#uwT1u  
} )]Rr:i9n  
*GnO&&m'B  
} >@W#@W*I@  
file://new InsertSort().sort(data); KLB?GN?Pb  
insertSort(data); ax}Xsk_  
} ]P5u:~U  
/** BGOI  
* @param data YkbLf#2AE|  
*/ u{^Kyo#v  
private void insertSort(int[] data) { o^J&c_U\3'  
int temp; {%dQV#'c  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); "=O)2}  
} \6L=^q=  
} m\Nc}P_"p  
} CdjGYS  
w?"l4.E%  
} ->UrWW^  
v.J#d>tvf  
归并排序: ~KvCb3~X  
$'wl{D"  
package org.rut.util.algorithm.support; c7 -j  
|&.)_+w  
import org.rut.util.algorithm.SortUtil; 4T-AWk  
B(U`Zd  
/** /vKDlCH*  
* @author treeroot 3._fbAN%e  
* @since 2006-2-2 0SYkDI  
* @version 1.0 C7:Ry)8'I  
*/ 0>Nq$/!  
public class MergeSort implements SortUtil.Sort{ iddT.   
$cedO']  
/* (non-Javadoc) v'=APl+_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )i>KgX  
*/ BGS6uV4^>  
public void sort(int[] data) { ~b/>TKn+  
int[] temp=new int[data.length]; ;2~Q97c0  
mergeSort(data,temp,0,data.length-1); c{q`uI;O  
} ml2HA4X&$Y  
8V= o%[t  
private void mergeSort(int[] data,int[] temp,int l,int r){ fq'Of wT  
int mid=(l+r)/2; ~1oD7=WN  
if(l==r) return ; C_/oORvK  
mergeSort(data,temp,l,mid); a6OT2B  
mergeSort(data,temp,mid+1,r); A |B](MW%O  
for(int i=l;i<=r;i++){ u""= 9>0  
temp=data; |ouk;r24V  
} Uw!v=n3#!  
int i1=l; WfVie6  
int i2=mid+1; Z^ 3Risi  
for(int cur=l;cur<=r;cur++){ [z9i v~  
if(i1==mid+1) ?CC6/bE-{  
data[cur]=temp[i2++]; U;/ )V  
else if(i2>r) @AFLFX]  
data[cur]=temp[i1++]; J^T66}r[f,  
else if(temp[i1] data[cur]=temp[i1++]; ub&1L_K  
else @2<J_Ja  
data[cur]=temp[i2++]; ~Q0}>m,S  
} Yv)/DsSyL  
} Et (prmH  
P:+:Cm<  
} X"]ZV]7(]s  
Q\Eq(2p  
改进后的归并排序: ,&$Y2+  
*SZ<ori  
package org.rut.util.algorithm.support; OR O~(%-(e  
Yp8$0KK  
import org.rut.util.algorithm.SortUtil; (~~=<0S  
//(c 1/s  
/** .6*A~%-=[d  
* @author treeroot BeRn9[  
* @since 2006-2-2 )Z#7%, o  
* @version 1.0 ,3K?=e2  
*/ AWzpk }\  
public class ImprovedMergeSort implements SortUtil.Sort { :c>,=FUT  
M:~#"lfK  
private static final int THRESHOLD = 10; K(?7E6\vO  
20q T1!j u  
/* PSE![whK  
* (non-Javadoc) 7?4>'  
* nz(OHh!}u  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `'/8ifKz  
*/ Z-p_hNb  
public void sort(int[] data) { \Z$*8z=  
int[] temp=new int[data.length]; Z7Kc`9.0|  
mergeSort(data,temp,0,data.length-1); 5R4 dN=L*1  
} 9M6&+1XE  
g!8-yri  
private void mergeSort(int[] data, int[] temp, int l, int r) { 9 }=Fdt  
int i, j, k; {_Y\Y&#  
int mid = (l + r) / 2;  : 2?du  
if (l == r) c~V\,lcI  
return; ??F{Gli"C`  
if ((mid - l) >= THRESHOLD) #KIHq2:.4  
mergeSort(data, temp, l, mid); `c icjA@~  
else b#b#r  
insertSort(data, l, mid - l + 1); b% F|V G  
if ((r - mid) > THRESHOLD) !@Ox%vK  
mergeSort(data, temp, mid + 1, r); ojaZC,}  
else B\Uj  
insertSort(data, mid + 1, r - mid); gP} M\3-O  
@M1U)JoQ  
for (i = l; i <= mid; i++) { f-Sb:O!V  
temp = data; 5b&'gd^d  
} 30<^0J.1  
for (j = 1; j <= r - mid; j++) { \Tc$P#  
temp[r - j + 1] = data[j + mid]; S&a 44i  
} g {00i  
int a = temp[l]; ;y"DEFs,u  
int b = temp[r]; M*x_1h5n  
for (i = l, j = r, k = l; k <= r; k++) { 'F@'4[uda  
if (a < b) { Mqq7;w@(J  
data[k] = temp[i++]; OlP#|x*  
a = temp; }} IvZG&  
} else { Nz m 7E]  
data[k] = temp[j--]; %bAv.'C  
b = temp[j]; \t}!Dr+yN  
} bNXT*HOZb3  
} `18G 5R  
} /h_BF\VBs  
n@*NQ`(_  
/** [P^ .=F  
* @param data aJub("  
* @param l xHf l>C'  
* @param i BUtXHD  
*/ {9z EnVfg  
private void insertSort(int[] data, int start, int len) { 4u<oe_n  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); E]68IuP@'  
} s>kzt1,x  
} v8LKv`I's  
} )0NA*<Q+.  
} +;vfn>^!b  
/V,:gLpQ  
堆排序: 8 }-"&-X  
WKN\* N<  
package org.rut.util.algorithm.support; sp JB6n(  
;lP)  
import org.rut.util.algorithm.SortUtil; 1:8ZS  
"]sr4Jg=  
/** zgLm~  
* @author treeroot P5[.2y_qM  
* @since 2006-2-2 :Bl $c,J  
* @version 1.0 xC|7"N^/  
*/ *r%=p/oQ}B  
public class HeapSort implements SortUtil.Sort{ |W?x6]~.R  
I&4|T<j  
/* (non-Javadoc) mp}ZHufG  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "BK&C6]  
*/ t/HE@xPxI5  
public void sort(int[] data) { [~x Q l  
MaxHeap h=new MaxHeap(); Oq[tgmf  
h.init(data); CYz]tv}g:  
for(int i=0;i h.remove(); 4/$]wK`  
System.arraycopy(h.queue,1,data,0,data.length); 9=:!XkT.  
} v-OaH81&R  
`a] /e  
private static class MaxHeap{ Zd042 %  
MwiT1sB~  
void init(int[] data){ #*5A]"k  
this.queue=new int[data.length+1]; _Nw-|N.  
for(int i=0;i queue[++size]=data; 2nk}'HBe  
fixUp(size); pm^[ve  
} NKO5c?ds  
} k5|h8%h8  
h"j{B  
private int size=0; 1SQ&m H/  
U)N;=gr\  
private int[] queue; rNdap*.  
QH;1*  
public int get() { o: qB#8X  
return queue[1]; \T>f+0=4  
} :h"Y>1P  
`*N2x\+X  
public void remove() { B|#"dhT  
SortUtil.swap(queue,1,size--); ;l"z4>kt7  
fixDown(1); 7u0!Q\  
} evq *&.6\  
file://fixdown j`(o\Fd )  
private void fixDown(int k) { N n+leM  
int j; {R\"x|  
while ((j = k << 1) <= size) { aabnlOVw  
if (j < size %26amp;%26amp; queue[j] j++; bq]af.o*  
if (queue[k]>queue[j]) file://不用交换  R:-^,/1  
break; 0Bb amU  
SortUtil.swap(queue,j,k); jrG@ +" }  
k = j; 't2"CPZ  
} /&a[D 2  
} m%ak]rv([  
private void fixUp(int k) { ]QRhTz  
while (k > 1) { qpFFvZ W  
int j = k >> 1; >tYptRP  
if (queue[j]>queue[k]) A6= Um%T  
break; q8`JRmt)H  
SortUtil.swap(queue,j,k); PO1sVP.S  
k = j; 8nW#Q <s  
} 1Sr@$+VGO  
} LsoP >vJG  
^I@43Jy/  
} [{L4~(uU8  
%3|0_  
} (Jy7  
/(5 SJ(a  
SortUtil: ?tSFM:9PU  
Kb#py6  
package org.rut.util.algorithm; * ix&"|h  
@ITJ}e4  
import org.rut.util.algorithm.support.BubbleSort; S!0<aFh  
import org.rut.util.algorithm.support.HeapSort; ==~X8k|{E  
import org.rut.util.algorithm.support.ImprovedMergeSort; 9H`Q |7g(5  
import org.rut.util.algorithm.support.ImprovedQuickSort; gM '_1zs U  
import org.rut.util.algorithm.support.InsertSort; }]'Z~5T  
import org.rut.util.algorithm.support.MergeSort; Quqts(Q)+  
import org.rut.util.algorithm.support.QuickSort; C5$1K'X@  
import org.rut.util.algorithm.support.SelectionSort; i.C+{QH  
import org.rut.util.algorithm.support.ShellSort; ULNU'6  
^/U-(4O05*  
/** UzWf_r  
* @author treeroot Tm 6<^5t  
* @since 2006-2-2 S)T~vK(n  
* @version 1.0 )\8l6Gw  
*/ /z.Y<xOc  
public class SortUtil { bODCC5yL  
public final static int INSERT = 1; [8v v[n/  
public final static int BUBBLE = 2; sFsp`kf  
public final static int SELECTION = 3; =]K;"  
public final static int SHELL = 4; @Xts}(L  
public final static int QUICK = 5; P{h;2b{  
public final static int IMPROVED_QUICK = 6; Mpzt9*7R  
public final static int MERGE = 7; YAYPof~A$l  
public final static int IMPROVED_MERGE = 8; z1{kZk  
public final static int HEAP = 9; xrs?"]M[  
:<r.n "  
public static void sort(int[] data) { IQAV`~_G  
sort(data, IMPROVED_QUICK); ,6uON@  
} |#^wYZO1U  
private static String[] name={ iimTr_TEt  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" C4Z}WBS(  
}; 9nN$%(EO5;  
_0 Qp[l-  
private static Sort[] impl=new Sort[]{ 2v\,sHw+-  
new InsertSort(), `q@5d&d`j  
new BubbleSort(), 0z1m!tr  
new SelectionSort(), ~oWCTj-  
new ShellSort(), }6*+>?  
new QuickSort(), o$)pJ#";F  
new ImprovedQuickSort(), G:7HL5u  
new MergeSort(), ?Z 9C}t]  
new ImprovedMergeSort(), N_Q)AXr)  
new HeapSort() P:,'   
}; ^cs:S-s  
bFD vCF  
public static String toString(int algorithm){ @ qy n[C  
return name[algorithm-1]; SaceIV%(  
} V3r1|{Z(  
lI~T>Lel2  
public static void sort(int[] data, int algorithm) { ZfsM($|a  
impl[algorithm-1].sort(data); z~fZg6  
} +GqK$B(x7  
'Z5l'Ac  
public static interface Sort { 7)SG#|v[$  
public void sort(int[] data); ]/g&y5RG  
} O< [h  
K9O%SfshF  
public static void swap(int[] data, int i, int j) { xVw9_il2a  
int temp = data; 5#|D1A  
data = data[j]; X$Eg(^La  
data[j] = temp; cLhHGwX=x  
} u5zL;C3O  
} {BPNb{dBKr  
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
如果您在写长篇帖子又不马上发表,建议存为草稿
认证码:
验证问题:
10+5=?,请输入中文答案:十五