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
  • 6678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。 `Rx\wfr}  
插入排序: \\P*w$c   
cq"#[y$r  
package org.rut.util.algorithm.support; &a!MT^anA~  
JXQh$hs  
import org.rut.util.algorithm.SortUtil; HlOn=>)<  
/** k"F\4M  
* @author treeroot w&x$RP  
* @since 2006-2-2 NCivh&HR  
* @version 1.0 dZ|x `bIgs  
*/ $&X-ay o  
public class InsertSort implements SortUtil.Sort{ qGdoRrp0Ov  
$ww0$  
/* (non-Javadoc) ;[B-!F>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N oRPvFv  
*/ {F ',e~}s  
public void sort(int[] data) { 0b}.!k9  
int temp; *h M5pw  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); _)ZxD--Qg  
} 5S 4 Bz  
} VQ8Q=!]  
} 9xOTR#B:_V  
Kh7C7[&  
} Zg$RiQ^-{J  
I9L7,~s  
冒泡排序: ~oz??SX  
x7!gmbMfK'  
package org.rut.util.algorithm.support; Ejj+%)n.  
6,~]2H'zq  
import org.rut.util.algorithm.SortUtil; y' RQ_Gi  
LnPG+<  
/** q0{_w  
* @author treeroot +1nzyD_E  
* @since 2006-2-2 }=p+X:k=  
* @version 1.0 GL,( N|  
*/ l#TE$d^ym  
public class BubbleSort implements SortUtil.Sort{ "t%Jj89a\  
!3)WW)"!r  
/* (non-Javadoc) t!\B6!Fo  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &3 *#h  
*/ ?N=`}}Ky-  
public void sort(int[] data) { ;r} yeI Sf  
int temp; sBa&]9>m  
for(int i=0;i for(int j=data.length-1;j>i;j--){ RMHJI6?LB  
if(data[j] SortUtil.swap(data,j,j-1); e2kW,JV/<$  
} }H:wgy`  
} LZDJ\"a-  
} Y)2#\ F   
} (qzBy \\p  
'7 t:.88  
} 2  ZyO  
"R]wPF5u  
选择排序: '"T9y=9]s  
;_#<a*f  
package org.rut.util.algorithm.support; M9~6ry-_  
1s.>_  
import org.rut.util.algorithm.SortUtil; (0["|h32,  
7Y5.GW\^  
/** :,V&P_  
* @author treeroot Jwpc8MQ  
* @since 2006-2-2 %+oqAY m+s  
* @version 1.0 Hu+GN3`sx^  
*/ O9rA3qv B  
public class SelectionSort implements SortUtil.Sort { sGx3O i   
!oYNJE Y7  
/*  9XhcA  
* (non-Javadoc) 3)y=}jw  
* 06z+xxCo  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a SMoee@!  
*/ 4UHviuOo8  
public void sort(int[] data) { B.:1fT7lI  
int temp; z9E*1B+  
for (int i = 0; i < data.length; i++) { <R?S  
int lowIndex = i; u.Tknw-X  
for (int j = data.length - 1; j > i; j--) { zKT4j1 h  
if (data[j] < data[lowIndex]) { [qU`}S2  
lowIndex = j; Dt\rrN:v  
} beB3*o  
} [\rzXE  
SortUtil.swap(data,i,lowIndex); ]3~ u @6  
} Y h53Z"a  
} J-qUJX~4c  
tIS.,CEQF  
} [I}z\3Z %  
ueEf>0  
Shell排序: DFvGc`O4  
e*Y<m\*  
package org.rut.util.algorithm.support; ^!z(IE'  
MT6"b  
import org.rut.util.algorithm.SortUtil; -Jt36|O  
Z!3R  
/** 8nwps(3  
* @author treeroot r7FJqd  
* @since 2006-2-2 @`ii3&W4  
* @version 1.0 2R W~jn"  
*/ ^SK!? M  
public class ShellSort implements SortUtil.Sort{ *c 9 S.  
/vC!__K9:  
/* (non-Javadoc) }X. Fm'`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @^/aS;B$>  
*/ +ViL"  
public void sort(int[] data) { E u<f  
for(int i=data.length/2;i>2;i/=2){ - ,?LS w  
for(int j=0;j insertSort(data,j,i); $%4<q0-  
} Cbp zYv32  
} 8Ltl32JSB[  
insertSort(data,0,1); Yr>0Qg],  
} b1;h6AeL  
-/2B fIq  
/** @$iZ9x6t  
* @param data = 5[%%Lf  
* @param j 4o"?QV:  
* @param i 0f@9y  
*/ 6)BPDfU,  
private void insertSort(int[] data, int start, int inc) { o2cc3`*8d  
int temp; 7!wc'~;  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); P- +]4\  
} xGFbh4H=8p  
} O3mw5<%15  
} ;WAa4r>  
4I .'./u  
} OZC yg/K  
jFip-=T{4  
快速排序:  e<(6x[_  
o1"N{ Eu  
package org.rut.util.algorithm.support; d]:G#<.  
3V7WIj<  
import org.rut.util.algorithm.SortUtil; R+_!FnOJ  
yz,0 S'U  
/** e7bMK<:r  
* @author treeroot *Mb'y d/|  
* @since 2006-2-2 'oH3|  
* @version 1.0 eoXbZ  
*/ Bl^ BtE?-b  
public class QuickSort implements SortUtil.Sort{ 6nR EuT'k  
3SI0etVr  
/* (non-Javadoc) HA7%8R*.2i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) O /:FY1  
*/ \w"~DuA  
public void sort(int[] data) { &n#yxv4  
quickSort(data,0,data.length-1); BO7XN;  
} J Vxja<43  
private void quickSort(int[] data,int i,int j){ q"oNFHYPDs  
int pivotIndex=(i+j)/2; W\j)Vg__e  
file://swap TD%L`Gk  
SortUtil.swap(data,pivotIndex,j); B?yj U[/R  
l}r9kS  
int k=partition(data,i-1,j,data[j]); hg#O_4D  
SortUtil.swap(data,k,j); 0S9~db  
if((k-i)>1) quickSort(data,i,k-1); fFYoZ/\  
if((j-k)>1) quickSort(data,k+1,j); OhMJt&s9P=  
a2ho+TwT  
} $rTb'8  
/** {jH'W)nR  
* @param data M<*WC{  
* @param i jVZ<i}h0B  
* @param j Pf<yLT]  
* @return |i #06jIq  
*/ =FI[/"476  
private int partition(int[] data, int l, int r,int pivot) { bC~I}^i\  
do{ l5~O}`gfh  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ml Cg&fnDB  
SortUtil.swap(data,l,r); 1e7I2g  
} Jz3,vV fQ:  
while(l SortUtil.swap(data,l,r); H5&._  
return l; vU5}E\Ny  
} ( Cg vI*O  
bar=^V)  
} 8ZqLG a]  
D6|-nl  
改进后的快速排序: 0xO*8aKT  
n\V7^N  
package org.rut.util.algorithm.support; /nuz_y\J  
,hT.Ok={36  
import org.rut.util.algorithm.SortUtil; k`A39ln7wu  
-%gEND-AP  
/** f8aY6o"i  
* @author treeroot f$n5$hJlQ  
* @since 2006-2-2 Pqw<nyC.  
* @version 1.0 ("r:L<xe&  
*/ Ir5|H|b<  
public class ImprovedQuickSort implements SortUtil.Sort { Jj\lF*B  
p\F%Nj,  
private static int MAX_STACK_SIZE=4096; p!=O>b_f  
private static int THRESHOLD=10; 7S&$M-k  
/* (non-Javadoc) 6>)nkD32g  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Bf]Bi~w<  
*/ "P54|XIJ\  
public void sort(int[] data) { gzqp=I[%  
int[] stack=new int[MAX_STACK_SIZE]; Wz"H.hf  
Kop(+]Q&n  
int top=-1; h3&|yS|  
int pivot; 5V\",PA W  
int pivotIndex,l,r; JAP(J~  
3fB]uq+eD%  
stack[++top]=0; ZTz07Jt  
stack[++top]=data.length-1; |FM*1Q[1  
%>_6&A{K,d  
while(top>0){ %=Z/Frd  
int j=stack[top--]; j*Pq<[~  
int i=stack[top--]; _MLf58  
"om7 : d  
pivotIndex=(i+j)/2; 3)6-S  
pivot=data[pivotIndex]; pMy:h   
"y&`,s5}  
SortUtil.swap(data,pivotIndex,j); .|5$yGEF_+  
**kix  
file://partition >:> W=  
l=i-1; ,7c Rd}1Y  
r=j; .RJMtmp  
do{ X-kOp9/.  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); +egwZ$5I  
SortUtil.swap(data,l,r); h~](9e s  
} Rz|@BxB>n  
while(l SortUtil.swap(data,l,r); )RvX}y-  
SortUtil.swap(data,l,j); EY<"B2_%  
m 8b,_1  
if((l-i)>THRESHOLD){ {7@*cB qN  
stack[++top]=i; s</qT6@  
stack[++top]=l-1; /]5*;kO`  
} M<n'ZDK `W  
if((j-l)>THRESHOLD){ d[J_iD{ &  
stack[++top]=l+1; ^ r(My}  
stack[++top]=j; D9A%8o  
} "t(_r@qU/  
5B4/2q=  
} X~c?C-fV  
file://new InsertSort().sort(data); h_S>Q  
insertSort(data); L YF|  
} P/|1,S k  
/** %dg[ho  
* @param data ,xVAJ6_#  
*/ {.jW"0U  
private void insertSort(int[] data) { ) y;7\-K0  
int temp; matna  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); c>{QTI:]  
} '!8-/nlv1  
} ocJG4#  
} 9jqsEd-SW  
@v2ko5  
} 3N|z^6`#  
Wu'qpJ  
归并排序: 7 [1|(6$  
iW>^'W#  
package org.rut.util.algorithm.support; SeDk/}/~e  
Cp"7R&s  
import org.rut.util.algorithm.SortUtil; W_JO~P  
y^`JWs,  
/** Y.]$T8  
* @author treeroot X_hDU~5{wC  
* @since 2006-2-2 !Kg ']4  
* @version 1.0 CssE8p>"F  
*/ [i ~qVn2vT  
public class MergeSort implements SortUtil.Sort{ ?zm]KxIC  
lYJSg70P  
/* (non-Javadoc) u"*DI=pwb  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Wu/#}Bw#  
*/ #IM.7`I   
public void sort(int[] data) { &4S2fWx  
int[] temp=new int[data.length]; L}Y.xi  
mergeSort(data,temp,0,data.length-1); N\ !  
} /}m*|cG/  
D\-\U E/  
private void mergeSort(int[] data,int[] temp,int l,int r){ o#,^7ln  
int mid=(l+r)/2; CL4N/[UM  
if(l==r) return ; 8Ejb/W_  
mergeSort(data,temp,l,mid); ~8u *sy  
mergeSort(data,temp,mid+1,r); "^\q{S&q2P  
for(int i=l;i<=r;i++){ ($[+dR  
temp=data; @:9Gs!!  
} Gb\PubJ  
int i1=l; Dz6xx?  
int i2=mid+1; 3yKmuu!  
for(int cur=l;cur<=r;cur++){ m\0_1 #(  
if(i1==mid+1) /~{`!30  
data[cur]=temp[i2++]; Rt+-ud{O  
else if(i2>r) U\tx{CsSz  
data[cur]=temp[i1++]; l9&k!kF`  
else if(temp[i1] data[cur]=temp[i1++]; {XmCG%%L  
else 4F6aPo2  
data[cur]=temp[i2++]; WJnGF3G>  
} @ CmKF  
} :1>?:3,`  
W H/.h$  
} n%7?G=_kj  
@nY]S\if  
改进后的归并排序: src+z#  
~EPVu  
package org.rut.util.algorithm.support; x~!|F5JbM  
% ERcFI]G  
import org.rut.util.algorithm.SortUtil; &b tI#  
"U-jZ5o"  
/** ~! -JN}H m  
* @author treeroot mnsl$H_4S  
* @since 2006-2-2 XAU%B-l:  
* @version 1.0 QE\ [ EI2  
*/ ?Z7QD8N  
public class ImprovedMergeSort implements SortUtil.Sort { Tz,9>uN  
-PE_qZ^  
private static final int THRESHOLD = 10; m"iA#3l*=  
nm,LKS7  
/* F^NK"<tW  
* (non-Javadoc) o6k#neB>=.  
* $z jdCg<  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Km8aHc]O~  
*/ D![v{0er  
public void sort(int[] data) { T+F]hv'  
int[] temp=new int[data.length]; 0\ = du  
mergeSort(data,temp,0,data.length-1); TB! I  
} -$Hu $Y}>  
k6;bUOo  
private void mergeSort(int[] data, int[] temp, int l, int r) { EyE#x_A  
int i, j, k; Z_\p8@3aH  
int mid = (l + r) / 2; w31Ox1>s  
if (l == r) QkdcW>:a7  
return; hu.o$sV3;  
if ((mid - l) >= THRESHOLD) :lcq3iFn  
mergeSort(data, temp, l, mid); .+/d08]  
else d}[cX9U/  
insertSort(data, l, mid - l + 1); v\Uk?V5T  
if ((r - mid) > THRESHOLD) 4 V')FGB$  
mergeSort(data, temp, mid + 1, r); Dp ](?Yr  
else rR> X<  
insertSort(data, mid + 1, r - mid);  S=(O6+U  
o[Jzx2A<  
for (i = l; i <= mid; i++) { Go)$LC0Mi  
temp = data; }|kFHodo  
} k||t<&`Ze  
for (j = 1; j <= r - mid; j++) { S' j g#*$  
temp[r - j + 1] = data[j + mid]; T$xB H  
} ;/j2(O^  
int a = temp[l]; ukW&\  
int b = temp[r]; FQDf?d5  
for (i = l, j = r, k = l; k <= r; k++) { [X.bR$>  
if (a < b) { 6QX m] <  
data[k] = temp[i++]; `OBzOM  
a = temp; kt/,& oKI  
} else { s{Z)<n03  
data[k] = temp[j--];  6st  
b = temp[j]; :CyHo6o9  
} J,2V&WuV0r  
} X g6ezlW  
} FPDTw8" B;  
CI'RuR3y]Z  
/** vjuFVJwL  
* @param data 50^ux:Uv+N  
* @param l  p+h$]CH  
* @param i ]dpL PR  
*/ ;Y?MbD  
private void insertSort(int[] data, int start, int len) { hJ@vlMW  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); f~`=I NrU  
} Q5+1'mzAB  
} 'dLw8&T+W  
} J?QS7#!%  
} -b(DPte  
{ qNPhi  
堆排序: HeRi67  
L=r*bq  
package org.rut.util.algorithm.support; *VZ|Idp  
cuhp4!!  
import org.rut.util.algorithm.SortUtil; \H fAKBT  
]ordqulq1  
/**  )(G9[DG  
* @author treeroot HC%Hbc~S_Q  
* @since 2006-2-2 .A2$C|a*  
* @version 1.0 =&WIa#!=  
*/ Ttluh *  
public class HeapSort implements SortUtil.Sort{ 8D='N`cN+  
Jj"{C]  
/* (non-Javadoc) {>f"&I<xw  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1@F-t94I  
*/ ZEP?~zV\A  
public void sort(int[] data) { +1ICX  
MaxHeap h=new MaxHeap(); VfX^iG r  
h.init(data); 4<y   
for(int i=0;i h.remove(); 8QrpNSj4  
System.arraycopy(h.queue,1,data,0,data.length); 4l$OO;B  
} k?+ 7%A]  
l|P"^;*zq  
private static class MaxHeap{ B*(]T|ff<  
p)y5[HX  
void init(int[] data){ j/O~8o&  
this.queue=new int[data.length+1]; i5VZ,E^E  
for(int i=0;i queue[++size]=data; )6OD@<r{  
fixUp(size); 7n8nJTU{4j  
} ^3;B4tj[  
} -*C WF|<G  
IOy0WHl|  
private int size=0; D}_.D=)  
5R7x%3@L  
private int[] queue; v@ _1V  
uoS:-v}/Y~  
public int get() { G{U#9   
return queue[1]; IiU> VLa  
} i\i%Wi Rl  
U\KMeaF5e-  
public void remove() { M.W X&;>  
SortUtil.swap(queue,1,size--); qX\*l m/l  
fixDown(1); 3U[O :  
} U"PcNQy  
file://fixdown Hn|W3U  
private void fixDown(int k) { )4yP(6|lx  
int j; 8dGsV5"*  
while ((j = k << 1) <= size) { X0/slOT  
if (j < size %26amp;%26amp; queue[j] j++; NJUKH1lIhR  
if (queue[k]>queue[j]) file://不用交换 GWA"!~Hu  
break; I Dohv[#  
SortUtil.swap(queue,j,k); b}[S+G-9W  
k = j; 3Z!%td5n  
} 1EyN |m|  
} k# [!; <  
private void fixUp(int k) { <LHhs <M'  
while (k > 1) { tW\yt~q,  
int j = k >> 1; "r9Rr_, >  
if (queue[j]>queue[k])  YKyno?m  
break; ;J%:DD  
SortUtil.swap(queue,j,k); s|=lKa]d!"  
k = j; Q Be6\oq  
} d>QFmsh-  
} HBlk~eZ  
50,'z?-_  
} D|- ]<r1"  
L5&M@YTH  
} 1- 2hh)  
B `(jTL  
SortUtil: \ TV  
Rs%`6et}\  
package org.rut.util.algorithm; LgqQr6y"  
hlzB cz*  
import org.rut.util.algorithm.support.BubbleSort; O2w-nd74U  
import org.rut.util.algorithm.support.HeapSort; zF1!a  
import org.rut.util.algorithm.support.ImprovedMergeSort; Abc{<4 z0?  
import org.rut.util.algorithm.support.ImprovedQuickSort; f1 ;  
import org.rut.util.algorithm.support.InsertSort; VD;*UkapZx  
import org.rut.util.algorithm.support.MergeSort; ^HKXm#vAB  
import org.rut.util.algorithm.support.QuickSort; oaIk1U;g  
import org.rut.util.algorithm.support.SelectionSort; ~k"+5bHa*  
import org.rut.util.algorithm.support.ShellSort; '6so(>|  
g'"~'  
/** #}`sfaT  
* @author treeroot ~6G `k^!  
* @since 2006-2-2 >jm(2P(R   
* @version 1.0 J4Gzp~{  
*/ 6Yu:v  
public class SortUtil { Obs#2>h  
public final static int INSERT = 1; djd/QAfSC  
public final static int BUBBLE = 2; 9vI~vl l  
public final static int SELECTION = 3; $7x2TiAL  
public final static int SHELL = 4; Cf% qap#  
public final static int QUICK = 5; S 'a- E![  
public final static int IMPROVED_QUICK = 6;  :eN&wQ5q  
public final static int MERGE = 7; 7^L  
public final static int IMPROVED_MERGE = 8; 0vY_  
public final static int HEAP = 9; <,i4Ua  
o Pe|Gfv\G  
public static void sort(int[] data) { ~?Zib1f)  
sort(data, IMPROVED_QUICK); 9`in r.:  
} X\^V{v^-  
private static String[] name={ A5<t>6Y  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" H$![]Ujq  
}; 6o't3Peh  
c-w #`  
private static Sort[] impl=new Sort[]{ *z0!=>(  
new InsertSort(), S?~0)EXj(  
new BubbleSort(), Q,U0xGGz  
new SelectionSort(), zsL@0]e&  
new ShellSort(), 4cjfn'x  
new QuickSort(), !=0h*=NOYt  
new ImprovedQuickSort(), uibmQ|AQ  
new MergeSort(), #QNN;&L]R  
new ImprovedMergeSort(), %:3XYO.w-  
new HeapSort() f{BF%;  
}; VjQ&A#   
EX,>V,.UV  
public static String toString(int algorithm){ >|f"EK}m!  
return name[algorithm-1]; uwwR$ (\7  
} gOF^?M11x  
`YhGd?uu$  
public static void sort(int[] data, int algorithm) { 8>KUx]AN  
impl[algorithm-1].sort(data); yw1 &I^7  
} DDE-$)lf>  
%>+uEjbT  
public static interface Sort { zPt<b!q  
public void sort(int[] data); `Ba]i)!  
} :So<N}&  
-FZC|[is  
public static void swap(int[] data, int i, int j) { fi?4!h  
int temp = data; DbGS]k<$  
data = data[j]; O8]e(i  
data[j] = temp; PTe L3L  
} C`5'5/-.  
} yl[I'fX66  
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