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
  • 7984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。 2aj1IBnz6/  
插入排序: t(u2%R4<d  
Nap[=[rv  
package org.rut.util.algorithm.support; =6u@ JpOl  
`}EnY@*h  
import org.rut.util.algorithm.SortUtil; B&]`OO>O  
/** G&ck98  
* @author treeroot aUaeK(x:H  
* @since 2006-2-2 6kYluV+j  
* @version 1.0 vqSpF6F q  
*/ F\ B/q  
public class InsertSort implements SortUtil.Sort{ =rA?,74  
4!IuTPmr  
/* (non-Javadoc) nGH6D2!F  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N&HI)X2&  
*/ >v]^nJl  
public void sort(int[] data) { "+(|]q"W  
int temp; N d].(_  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ubwM*P  
} jH< #)R  
} F w 0m(7  
} 50cVS)hG6d  
PVIOe}N  
} [Fl_R[o  
|J-X3`^\H  
冒泡排序: .9bi%=hP  
Y4rxnXGw  
package org.rut.util.algorithm.support; vGkem J^/  
w:5?ofC  
import org.rut.util.algorithm.SortUtil; aJ'Fn  
32wtN8kx  
/** #AJW-+1g.=  
* @author treeroot 5#GMp  
* @since 2006-2-2 5W&L6.J}+  
* @version 1.0 2][9Wp  
*/ danPy2  
public class BubbleSort implements SortUtil.Sort{ rtj/&>  
39v Bsc  
/* (non-Javadoc) QP (0  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) y98FEG#S}  
*/ "wgPPop  
public void sort(int[] data) { ^&qK\m_A  
int temp; ,b*?7R  
for(int i=0;i for(int j=data.length-1;j>i;j--){ CD&a_-'z$K  
if(data[j] SortUtil.swap(data,j,j-1); $94lF~  
} y\T$) XGV  
} t%:7W[_s  
} P T;{U<5  
} 0t7N yKU  
~<[+!&<U  
} ,X|Oe@/  
if*V-$[I  
选择排序: G"/;Cq=t  
K2xB%m1LK  
package org.rut.util.algorithm.support; H8eEBMGo  
%g9y m@s  
import org.rut.util.algorithm.SortUtil; 0z>IYw|UB  
`=(<!nXJx  
/** C m:AU;  
* @author treeroot D_l$"35?  
* @since 2006-2-2 Ca~8cQ  
* @version 1.0 t/[2{'R4  
*/ k8s)PN  
public class SelectionSort implements SortUtil.Sort { Cog}a  
o<nM-"yWb  
/* {8m&Z36E  
* (non-Javadoc) Qw0k-t0=4  
* Cff6EE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) j,OA>{-$  
*/ d]E=w6 +;Q  
public void sort(int[] data) {  .\oz  
int temp; Ic'D# m  
for (int i = 0; i < data.length; i++) { G#%Sokkb'  
int lowIndex = i; 7J);{ &x9h  
for (int j = data.length - 1; j > i; j--) { bW`nLiw}%  
if (data[j] < data[lowIndex]) { wq?"NQ?O<  
lowIndex = j; iHv+I~/  
} F@<cp ?dR  
} >g$iO`2  
SortUtil.swap(data,i,lowIndex); 1)~|{X+~  
} WO>,=^zPJ  
} gt8dFcm|s  
f#l9rV"@g  
} ^&;,n.X5Z  
K@p9_K8  
Shell排序: ^]o H}lwO  
n/v.U,f&l@  
package org.rut.util.algorithm.support; cxR.:LD}  
.rBU"Rbo  
import org.rut.util.algorithm.SortUtil; 0Z2XVq~T$  
PJK:LZw  
/** KH2]:&6:Q  
* @author treeroot 6w%n$tiX  
* @since 2006-2-2 |eRE'Wd0  
* @version 1.0 zfop-qDOc  
*/ kwp%5C-S  
public class ShellSort implements SortUtil.Sort{ 'd N1~Pa  
#w''WOk@ZG  
/* (non-Javadoc) G ]h  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?b7ttlX{  
*/ (VO'Kd  
public void sort(int[] data) { ]WNY"B>+  
for(int i=data.length/2;i>2;i/=2){ _)j\ b  
for(int j=0;j insertSort(data,j,i); JL {H3r&/S  
} {+lU4u  
} s17)zi,?4  
insertSort(data,0,1); "`;-5dg  
} LGc8w>qE  
]\rQ{No  
/** ]EK(k7nH  
* @param data .c>6}:ye  
* @param j 9 m8KDB[N  
* @param i * K$ U[$s  
*/ *-ys}sX  
private void insertSort(int[] data, int start, int inc) { T @^ S:K  
int temp; %f<>Kwr`2  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 2=?3MXcjy  
} fln[Q2zl  
} w7` pbcY,  
} S0StC$$1  
_p"u~j~%-  
} U?dad}7  
6Gg`ExcT5  
快速排序: 1Xi>&;],  
sSh." H  
package org.rut.util.algorithm.support; i=/hLE8T*  
^zTe9:hz/\  
import org.rut.util.algorithm.SortUtil; &w9*pJR %  
Y-8BL  
/** K Zg NL|  
* @author treeroot O)W+rmToI  
* @since 2006-2-2 t<dFH}U`w  
* @version 1.0 XZN@hXc9:v  
*/ T 9`AL  
public class QuickSort implements SortUtil.Sort{ i+(>w'=m  
kMW9UUw  
/* (non-Javadoc) )*_G/<N) |  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .(/HUQn  
*/ aA$\iFYA  
public void sort(int[] data) { P$z%:Q  
quickSort(data,0,data.length-1); ;i.MDW^N  
} tQG'f*4  
private void quickSort(int[] data,int i,int j){ GH':Yk  
int pivotIndex=(i+j)/2; 5=*i!c _m  
file://swap <#8}![3Q  
SortUtil.swap(data,pivotIndex,j); <}RD]Sc$1  
HY_>sD  
int k=partition(data,i-1,j,data[j]); CF3x\6.q}  
SortUtil.swap(data,k,j); R<f F ^^  
if((k-i)>1) quickSort(data,i,k-1); p8XvfM  
if((j-k)>1) quickSort(data,k+1,j); 4RctYMz  
-uN{28;@  
} 6|lsG6uf  
/** 8g:VfzaHu  
* @param data 13 h,V]ak  
* @param i w;Azxcw  
* @param j %AJ9fs4/  
* @return V5-!w0{  
*/ %h(%M'm?  
private int partition(int[] data, int l, int r,int pivot) { MtwlZg`c3  
do{ :@5{*o  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); =^p}JhQ  
SortUtil.swap(data,l,r); 9BP'[SM%),  
} gJp6ReZ#  
while(l SortUtil.swap(data,l,r); O`Qke Z}  
return l; CH(Y.Kj-  
} M]X!D7  
D?%[du:V  
} B#hvw'}  
?f9M59(l  
改进后的快速排序: Ge({sy>X  
&0f/F:M  
package org.rut.util.algorithm.support; phG *It}  
F3vywN1$,  
import org.rut.util.algorithm.SortUtil; 0'f\>4B  
OmkJP  
/** I*j~5fsS'  
* @author treeroot ~-NSIV:f  
* @since 2006-2-2 yp4[EqME  
* @version 1.0 p& $PsgR  
*/ Ohgu*5!o  
public class ImprovedQuickSort implements SortUtil.Sort { oMemF3M  
UhDf6A`]  
private static int MAX_STACK_SIZE=4096; l?IeZisX  
private static int THRESHOLD=10; 94O\M RQ*  
/* (non-Javadoc) Z,AY<[/C  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lO|LvJyx  
*/ y+Nw>\|S  
public void sort(int[] data) { Q }^Ip7T  
int[] stack=new int[MAX_STACK_SIZE]; 1p5'.~J+Q  
\: F$7 *Ne  
int top=-1; fe<7D\Sp@  
int pivot; Y=|20Y\K  
int pivotIndex,l,r; 2%fzRXhu%  
~tTn7[!  
stack[++top]=0; s>G]U)d<'  
stack[++top]=data.length-1; W;T0_=  
1!V[fPJ  
while(top>0){ g]JJ!$*1  
int j=stack[top--]; OcWKK!A  
int i=stack[top--]; &?Erkc~#  
UW}@oP$r  
pivotIndex=(i+j)/2; 7xB]Z;:  
pivot=data[pivotIndex]; !0? B=yA  
byE0Z vDM  
SortUtil.swap(data,pivotIndex,j); )uAY_()/  
DazoY&AWE  
file://partition &n8Ja@Y]  
l=i-1; Fab]'#1q4  
r=j; bBc<p{  
do{ !_3b#Caf  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Z'9|  
SortUtil.swap(data,l,r); u4T$  
} #%ld~dgz-  
while(l SortUtil.swap(data,l,r); C7R3W,  
SortUtil.swap(data,l,j); I6;6x  
yKrb GK*=_  
if((l-i)>THRESHOLD){ BI%~0 Gj8  
stack[++top]=i; -1B.A  
stack[++top]=l-1; 6ERMn"[_w  
} #wT6IU1  
if((j-l)>THRESHOLD){ x&J\swN9  
stack[++top]=l+1; KwMt@1Z  
stack[++top]=j; Fhllqh)  
} y@$E5sz  
l=" X|t   
} dHiir&Rd9`  
file://new InsertSort().sort(data); 4x-,l1NMR  
insertSort(data); K%L6UQ;  
} ^S;{;c+'  
/** S'$m3,l(k  
* @param data *7Y#G8 s  
*/ "8uNa  
private void insertSort(int[] data) { p*g)-/mA  
int temp; un!v1g9O  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 3O4lG e#u  
} V;RgO}  
} gi/k#3_m  
} Iv3yDL;  
/kyO,g$9  
} r)-{~JA!  
Jb$G  
归并排序: 12L`Gi  
qHgtd+ I  
package org.rut.util.algorithm.support; 4qE4 i:b  
<)LR  
import org.rut.util.algorithm.SortUtil; gfN=0Xj4  
\kUQe-:he  
/** _IOUhMo  
* @author treeroot 3^&`E} r  
* @since 2006-2-2 k ?6d\Q  
* @version 1.0 SXl~lYUL  
*/ (O(TFE5^  
public class MergeSort implements SortUtil.Sort{ ~.G$0IJY  
^{IZpT3  
/* (non-Javadoc) ;u(*&vRqr^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) T ?[;ej:  
*/ vOCaru?~h  
public void sort(int[] data) { mX.mX70|J  
int[] temp=new int[data.length]; Xl2g Hh  
mergeSort(data,temp,0,data.length-1); 3'6 UvAXFH  
} w[l#0ZZ  
rxMo7px@}I  
private void mergeSort(int[] data,int[] temp,int l,int r){ =$bF[3D  
int mid=(l+r)/2; -le^ 5M7  
if(l==r) return ; 4?@#w>(  
mergeSort(data,temp,l,mid); \$4z@`nY  
mergeSort(data,temp,mid+1,r); #l&*&R~>  
for(int i=l;i<=r;i++){ 03|nP$g  
temp=data; rxol7"2l  
} ??B!UXi4R  
int i1=l; XW8@c2jN\7  
int i2=mid+1; eLh35tw  
for(int cur=l;cur<=r;cur++){ kR^">s/H#  
if(i1==mid+1) MIkp4A  
data[cur]=temp[i2++]; .eVX/6,  
else if(i2>r) L.;x=w  
data[cur]=temp[i1++]; ?&,6Y'"  
else if(temp[i1] data[cur]=temp[i1++]; 6W3oIt  
else "v wLj:  
data[cur]=temp[i2++]; $ e L-fg  
} 1TA!9cz0Z  
} G8w@C  
mYJ8O$  
} uMG y-c  
jCtk3No  
改进后的归并排序: 2P`./1L  
BB3 a8  
package org.rut.util.algorithm.support; Rvf{u8W  
D2D+S  
import org.rut.util.algorithm.SortUtil; MD1X1,fk  
K\B!tk  
/** :O@n6%pSL  
* @author treeroot (JdheCq!x  
* @since 2006-2-2 y_W?7 S  
* @version 1.0 @VOegf+N  
*/ ^J^~5q8  
public class ImprovedMergeSort implements SortUtil.Sort { WwnBe"7M  
*]<=04v]R  
private static final int THRESHOLD = 10; BHgs,  
N#-. [9!  
/* =bJ$>Djp  
* (non-Javadoc) }D)eS |B  
* 3I}AA.h'00  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $,r%@'=&  
*/ 0)h.[O8@>  
public void sort(int[] data) { ZW"f*vwQo  
int[] temp=new int[data.length]; : Gi8Jo  
mergeSort(data,temp,0,data.length-1); ":/Vp,g  
} `g(#~0R  
s8]%L4lvu  
private void mergeSort(int[] data, int[] temp, int l, int r) { H@zv-{}T8  
int i, j, k; (ESFR0  
int mid = (l + r) / 2; Fq+Cr?-  
if (l == r) xA:;wV  
return; |p+FIr+  
if ((mid - l) >= THRESHOLD) qR2cRepV  
mergeSort(data, temp, l, mid); (d NF)(wn  
else 1z2v[S&pk  
insertSort(data, l, mid - l + 1); IN1 n^f$:  
if ((r - mid) > THRESHOLD) #2Q%sE?  
mergeSort(data, temp, mid + 1, r); %j17QD8  
else #<&@-D8  
insertSort(data, mid + 1, r - mid); xZ2 1i QeN  
$?:IRgAr  
for (i = l; i <= mid; i++) { .@mZG<vg  
temp = data; LR#.xFQ+  
} =M@)q y  
for (j = 1; j <= r - mid; j++) { \J?&XaO=  
temp[r - j + 1] = data[j + mid]; ^hEN  
} V?^qW#AG  
int a = temp[l]; \&V[<]  
int b = temp[r]; SV ~QH&0'  
for (i = l, j = r, k = l; k <= r; k++) { 5M)B  
if (a < b) { {*CG&-k2D  
data[k] = temp[i++]; BBX/&d8n  
a = temp; MMaS  
} else { q |Pebe=  
data[k] = temp[j--]; d@JavcR  
b = temp[j]; gV':Xe  
} zN+jn  
} k"BM1-f  
} 5)k/ 4l '  
L!/{Z  
/** 9,Dw;|A]  
* @param data 0VR,I{<.{  
* @param l *CF80DJ  
* @param i ;VCFDE{K=  
*/ g0/ R\  
private void insertSort(int[] data, int start, int len) { x3 Fn'+  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); GP ^^ K  
} loq2+(  
} &2@Rc?!6_P  
} wp~KrUlR  
} [!KsAsmk  
u5U^}<}y}  
堆排序: )Rk(gd  
{~EsO1p  
package org.rut.util.algorithm.support; @{<^rLt  
TK> ~)hc}  
import org.rut.util.algorithm.SortUtil; 4T)`%Oo<}  
8h}1t4k  
/** $'*{&/@  
* @author treeroot _Eq,udCso  
* @since 2006-2-2 98zJ?NaD&  
* @version 1.0 UNrO$aX!1'  
*/ ph2 _P[S'  
public class HeapSort implements SortUtil.Sort{ Vn/FW?d7  
4uE/!dT  
/* (non-Javadoc) 5?j#  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y3)*MqZlF  
*/ Lq@uwiq!  
public void sort(int[] data) { Dg ~k"Ice  
MaxHeap h=new MaxHeap(); 65+2+p  
h.init(data); "x_G6JE4tv  
for(int i=0;i h.remove(); _a?x)3\v  
System.arraycopy(h.queue,1,data,0,data.length); l0',B*og  
} \Y:zg3q*  
] TZ/=Id  
private static class MaxHeap{ (h@~0S  
*a(GG  
void init(int[] data){ ?LvxEQ-g  
this.queue=new int[data.length+1]; TPN1Rnt0`  
for(int i=0;i queue[++size]=data; PP_ar{|7  
fixUp(size); ~me/ve  
} r0'a-Mk;  
} yzNDXA.  
yWH!v]S  
private int size=0; +rrA>~  
{FN4BC`3+  
private int[] queue; [NGq$5  
4*q6#=G  
public int get() { VjiwW%UOM  
return queue[1]; d.U"lP/)D  
} iN L>TVUM  
 ? EhIK  
public void remove() { ="g9>  
SortUtil.swap(queue,1,size--); KC<K*UHPAH  
fixDown(1); 1yc$b+TH  
} [A;0I jKam  
file://fixdown U:aaa  
private void fixDown(int k) { [|YuT:Cp  
int j; (I1^nrDP.  
while ((j = k << 1) <= size) { H,!yG5yF  
if (j < size %26amp;%26amp; queue[j] j++; K1- 3!G  
if (queue[k]>queue[j]) file://不用交换 '?mky,:HT  
break; @_#]7  
SortUtil.swap(queue,j,k); qs (L2'7/  
k = j; Nfl5tI$U:  
} Ivq|-LDNc  
} =AuxME g  
private void fixUp(int k) { u$"Ew^C  
while (k > 1) { @[ '?AsO  
int j = k >> 1; .z,`{-7U  
if (queue[j]>queue[k]) G$lE0_j2{  
break; d8^S~7  
SortUtil.swap(queue,j,k); fhki!# E8M  
k = j; 91FVe  
} QA~Lm  
} wI[J>9Qn  
2d OUY $4  
} wFL7JwK:G  
]#FQde4]5  
} s*e1m%  
( d8rfet  
SortUtil: ` P*PCiZos  
NQd0$q  
package org.rut.util.algorithm; \Dx)P[Ur  
v@:m8Y(t  
import org.rut.util.algorithm.support.BubbleSort; 5lE9UoG[Q  
import org.rut.util.algorithm.support.HeapSort; @ `SlOKz!=  
import org.rut.util.algorithm.support.ImprovedMergeSort; 5%fR9?)  
import org.rut.util.algorithm.support.ImprovedQuickSort; "(;t`,F  
import org.rut.util.algorithm.support.InsertSort; ;Z&w"oSJ  
import org.rut.util.algorithm.support.MergeSort; j|r$ ! gV  
import org.rut.util.algorithm.support.QuickSort; '81WogH:  
import org.rut.util.algorithm.support.SelectionSort; "!o|^nN,  
import org.rut.util.algorithm.support.ShellSort; RWGAxq`9f  
*nY$YwHB  
/** S^SF!k=  
* @author treeroot TzV~I\a|  
* @since 2006-2-2 iB{l:  
* @version 1.0 Q2t>E(S  
*/ s#(<zBZ9p#  
public class SortUtil { 69``j{Z+  
public final static int INSERT = 1; Gwfi  
public final static int BUBBLE = 2; 'R n\CMTH  
public final static int SELECTION = 3; "A}2iI  
public final static int SHELL = 4; p xQh;w  
public final static int QUICK = 5; >6z7.d  
public final static int IMPROVED_QUICK = 6; ]Mgxv>zRbs  
public final static int MERGE = 7; `n%8y I%  
public final static int IMPROVED_MERGE = 8; =#?=Lh  
public final static int HEAP = 9; E@)9'?q  
]7%+SH,RdD  
public static void sort(int[] data) { TmgSV#G  
sort(data, IMPROVED_QUICK); $w! v  
} t&(\A,ch%  
private static String[] name={ N6/;p]|  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" wg KM6?  
}; $"{I| UFC  
n'<F'1SWv  
private static Sort[] impl=new Sort[]{ b5UIX Kim  
new InsertSort(), g;</|Z  
new BubbleSort(), pIvr*UzY  
new SelectionSort(), #D8u#8Dz  
new ShellSort(), 'n "n;  
new QuickSort(),  \.MPjD  
new ImprovedQuickSort(), >m`<AynJ  
new MergeSort(), od]1:8OF  
new ImprovedMergeSort(), x^!LA,`j  
new HeapSort() udX!R^8jE  
}; O['5/:-  
'X1/tB8*  
public static String toString(int algorithm){ qyY]: (8  
return name[algorithm-1]; Q|W~6  
} RjG=RfB'V  
/8s>JPXKH[  
public static void sort(int[] data, int algorithm) { 7j{63d`2  
impl[algorithm-1].sort(data); gib;> nuBK  
} Q+^"v]V`d  
h8?E+0  
public static interface Sort { NGuRyZp69&  
public void sort(int[] data); jH]?vpP  
} JO|xX<#:  
]*yUb-xY  
public static void swap(int[] data, int i, int j) { j{H,{x  
int temp = data; [7=?I.\Cr7  
data = data[j]; rPoq~p[Y  
data[j] = temp; "v5jYz5M  
} Q~$hx{foN  
} sKGR28e  
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
如果您提交过一次失败了,可以用”恢复数据”来恢复帖子内容
认证码:
验证问题:
10+5=?,请输入中文答案:十五