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
  • 7174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。 Cn/q=  
插入排序: r"[L0Cbb  
fr]Hc+7  
package org.rut.util.algorithm.support; UhBz<>i;!  
'v+96b/;  
import org.rut.util.algorithm.SortUtil; /=- h:0{M  
/** 8'% +G  
* @author treeroot "Y(%oJS]D  
* @since 2006-2-2 ]]3Q*bq4  
* @version 1.0 q!@c_o  
*/ D zE E:&*=  
public class InsertSort implements SortUtil.Sort{ U-ULQ|6U  
|QMT A5  
/* (non-Javadoc) Y}ky/?q  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @QX4 \  
*/ 5 Af?Yxv  
public void sort(int[] data) { v'$ykZ!Z  
int temp; uAQg"j  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 3m~U(yho  
} (Y>U6  
} X; 5S  
} vS2(Q0+TZi  
rSbQ}O4V  
} >["Kd.ye  
Y& m<lnB  
冒泡排序: hN}5u"pS  
&#%D.@L  
package org.rut.util.algorithm.support; [@zkv)D6  
)Jmw|B  
import org.rut.util.algorithm.SortUtil; . *Z#cq0  
F-i&M1 \_  
/** 78gob&p?  
* @author treeroot eNivlJ,K|@  
* @since 2006-2-2 <%(f9j  
* @version 1.0 7%X+O8  
*/ fA;x{0CAMX  
public class BubbleSort implements SortUtil.Sort{ m9uUDq#GJ  
tPA"lBS !  
/* (non-Javadoc) HN^w'I'bp  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $*wu~  
*/ Km%8Yw0+  
public void sort(int[] data) { sAf9rZt*'  
int temp; Wl?<c uw00  
for(int i=0;i for(int j=data.length-1;j>i;j--){ `dP? 2-Z  
if(data[j] SortUtil.swap(data,j,j-1); -IGMl_s  
} x9 TuweG  
} !(}OBZ[*  
} 9B& }7kk  
} >&g2 IvDS  
x={kjym L  
}  hgNY[,  
Sw/J+FO2  
选择排序: A<]&JbIt  
,Z >JvTnH  
package org.rut.util.algorithm.support; OrzM hQaf  
L/c4"f|.*v  
import org.rut.util.algorithm.SortUtil; 3KR2TcT#{  
zv&ePq\#  
/** m<~>&mWr  
* @author treeroot 9$8X> T^   
* @since 2006-2-2 L,tZh0  
* @version 1.0 ]U#JsMS  
*/ 6Uch 0xha!  
public class SelectionSort implements SortUtil.Sort { p^}L  
^"PfDTyA  
/* g6HphRJ5s  
* (non-Javadoc) T,A!5V>cX  
* ^V_ku@DY  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |)~Ex 9%ev  
*/ Bi %Z2/  
public void sort(int[] data) { ?]759,Q3L  
int temp; Jx)~kK  
for (int i = 0; i < data.length; i++) { $gXkx D  
int lowIndex = i; ?=TL2"L  
for (int j = data.length - 1; j > i; j--) { +!D=SnBGs  
if (data[j] < data[lowIndex]) { *1%e%G  
lowIndex = j; @#'yPV1  
} 02;f2;I  
} {(8U8f<'=y  
SortUtil.swap(data,i,lowIndex); tj`tLYOZ@-  
} "h^A]t;qe  
} )zo#1$C-  
h2im sjf  
} Vf@S8H  
mYzsT Uq  
Shell排序: 9;}L{yve  
"TEBByO'  
package org.rut.util.algorithm.support; W9:fKP  
JS }_q1H  
import org.rut.util.algorithm.SortUtil; @2)t#~Wc4h  
m T>b ;  
/** q}wl_ku9+  
* @author treeroot gK&5HTo  
* @since 2006-2-2  zZS>+O  
* @version 1.0 J r=REa0  
*/ oHv{Y  
public class ShellSort implements SortUtil.Sort{ ZJiuj!  
$`-SVC  
/* (non-Javadoc) 1jR=h7^=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) r@N39O*Wq  
*/ LG"BfYy6  
public void sort(int[] data) { L{+&z7M  
for(int i=data.length/2;i>2;i/=2){ &ryl$!!3H  
for(int j=0;j insertSort(data,j,i); .aVHd<M  
} *93l${'  
} Tw`F?i~  
insertSort(data,0,1); IBn'iE[>  
} TyxU6<>4J4  
9;;]q?*  
/** &;SwLDF"1  
* @param data ]<&B BQ  
* @param j s{x*~M$vt  
* @param i cij]&$;Q  
*/ 5i}CzA96  
private void insertSort(int[] data, int start, int inc) { cKvAR5|  
int temp; 7C,<iY  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc);  r{; VTQ  
} ~*,Ddwr0a  
} ]j%*"V  
} DctX9U(  
IG2`9rR  
} ?0 KiR?  
E7d~#  
快速排序: 2ID*U d*  
y@2vY[)3s  
package org.rut.util.algorithm.support; B;Q`vKY  
yoq\9* ?u^  
import org.rut.util.algorithm.SortUtil; F:[Nw#gj/  
%RfY`n  
/** P>yG/:W;  
* @author treeroot s= -WB0E  
* @since 2006-2-2 i} NkHEK  
* @version 1.0 1 Ovx$ *  
*/ B` t6H  
public class QuickSort implements SortUtil.Sort{ : 9djMsd  
&sr:\Qn X/  
/* (non-Javadoc) PU]7c2.y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5p#o1I  
*/ xr7-[)3Q$  
public void sort(int[] data) { 8M".o n  
quickSort(data,0,data.length-1); i"2J5LLv  
} @M1yBN  
private void quickSort(int[] data,int i,int j){ JN;TGtB^p  
int pivotIndex=(i+j)/2; ( FjsN5  
file://swap 14@q$}sf  
SortUtil.swap(data,pivotIndex,j); L~?,6  
8S[ <[CH  
int k=partition(data,i-1,j,data[j]); /Gh x2B  
SortUtil.swap(data,k,j);  9^b7jw  
if((k-i)>1) quickSort(data,i,k-1); )n[`Z#  
if((j-k)>1) quickSort(data,k+1,j); ;Wfv+]n9  
JWUv H  
} }QApeZd+q  
/** )Bm^aMVl3  
* @param data j:de}!wc  
* @param i it/C y\f  
* @param j ]XpU'/h>q;  
* @return H$=h-  
*/ OW[/%U>  
private int partition(int[] data, int l, int r,int pivot) { 0s+rd&  
do{ WL]Wu.k  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); )M|O;~q  
SortUtil.swap(data,l,r); $z`cMQ r  
} eJVOVPg<,  
while(l SortUtil.swap(data,l,r); Z7KB?1{G  
return l; SoM ]2^  
} K\Y6 cj  
rH} Dt@  
} @'NaA SB  
=oKPMmpCZ  
改进后的快速排序: <Vr] 2mw  
Hm8EYPr J  
package org.rut.util.algorithm.support; Gr"2G,,VI  
] fwTi(4y  
import org.rut.util.algorithm.SortUtil; pO7{3%  
4/mj"PBKL  
/** vt(}ga  
* @author treeroot p[k9C$@e}  
* @since 2006-2-2 +"N<-  
* @version 1.0 7Da^Jv k  
*/ Tg{dIh.Q~O  
public class ImprovedQuickSort implements SortUtil.Sort { n )wpxR  
i+T0}M<  
private static int MAX_STACK_SIZE=4096; kHo;9j-U  
private static int THRESHOLD=10; q9a wzj  
/* (non-Javadoc) NZw[.s>n  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) J~yd]L>  
*/ .@/z-OgXg  
public void sort(int[] data) { Vqv2F @.  
int[] stack=new int[MAX_STACK_SIZE]; DY+8m8!4H  
{ZBb. $}RC  
int top=-1; u=ds]XP@  
int pivot; +~pc% 3*  
int pivotIndex,l,r; +=29y@c  
Tr}$Pb1  
stack[++top]=0; NNREt:+kr  
stack[++top]=data.length-1; 9{]r+z:  
sP8-gkkor  
while(top>0){ "#eNFCo7k  
int j=stack[top--]; XM5;AcD  
int i=stack[top--]; pFv[z':&Q  
>/OXC+=^4  
pivotIndex=(i+j)/2; RZ,<D I  
pivot=data[pivotIndex]; i5~ /+~  
{]/Jk07  
SortUtil.swap(data,pivotIndex,j); 7$dc? K  
TF}4X;3Dsy  
file://partition \ /X!tlwxh  
l=i-1; '\E*W!R.]  
r=j; NId~| &\  
do{ @T~#Gwv  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 7gR;   
SortUtil.swap(data,l,r); `$x#_-Hn  
} |2t7mat  
while(l SortUtil.swap(data,l,r); qeO6}A"^|  
SortUtil.swap(data,l,j); %Cbc@=k  
k~s>8N:&G  
if((l-i)>THRESHOLD){ <K.C?M(9  
stack[++top]=i; ZZ.0'   
stack[++top]=l-1; krnk%ug  
} L!}j3(I  
if((j-l)>THRESHOLD){ ?\p%Mx?   
stack[++top]=l+1; 2" {]A;@  
stack[++top]=j; !A^w6Q;`V  
} GzZ|T7fm  
d=5}^v#4  
} KlX |PQ  
file://new InsertSort().sort(data); u>i+R"hi"  
insertSort(data); H|Fqc=qp  
} u4*]jt;H  
/** "j@IRuH  
* @param data HEfA c  
*/ {HJ`%xN|  
private void insertSort(int[] data) { IM&7h! l"|  
int temp; '8pPGh9D  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); <n2{+eO  
} ThqfZl=V  
} a!J ow?(  
} L4A/7Ep  
Bw/H'Y  
} /dvnQW4}8  
e !x-:F#4j  
归并排序: 6_}){ZR  
_R<V8g1f  
package org.rut.util.algorithm.support; uc(yos  
\S@=zII_  
import org.rut.util.algorithm.SortUtil; Z$=$oJzB  
ujp,D#xHP  
/** eq 1 4  
* @author treeroot t:j07 ,1~  
* @since 2006-2-2 2,QApW_Y  
* @version 1.0 kE(-vE9  
*/ QO`SnN}  
public class MergeSort implements SortUtil.Sort{ D30Z9_^%:  
mM^8YL  
/* (non-Javadoc) T+`GOFx  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ppo$&W &z  
*/ H=SMDj)s+  
public void sort(int[] data) { mt6uW+t/  
int[] temp=new int[data.length]; wTuRo J  
mergeSort(data,temp,0,data.length-1); bFdg '_  
} .+~kJ0~Y  
snzH}$Ls  
private void mergeSort(int[] data,int[] temp,int l,int r){ WMz|FFKVY  
int mid=(l+r)/2; Sw9mrhzJfe  
if(l==r) return ; G;#t6bk  
mergeSort(data,temp,l,mid); IhKas4  
mergeSort(data,temp,mid+1,r); `YU:kj<6  
for(int i=l;i<=r;i++){ &#\7w85$  
temp=data; 5}^08Xl  
} i2R]lE8  
int i1=l; UU~;B  
int i2=mid+1; K~~*M?.Z  
for(int cur=l;cur<=r;cur++){ cw-JGqLx  
if(i1==mid+1) ia.B@u1/  
data[cur]=temp[i2++]; [&}<! :9'  
else if(i2>r) ;%.k}R%O@  
data[cur]=temp[i1++]; |q b92|?  
else if(temp[i1] data[cur]=temp[i1++]; ?|rw=%  
else w I 7  
data[cur]=temp[i2++]; ,7nb;$]  
} *E q7r>[  
} 0J,d9a [1  
 G/;aZ  
} zgOwSg8  
.xQ'^P_q  
改进后的归并排序: M@ZpgAfq  
E0%Y%PQ**{  
package org.rut.util.algorithm.support; jl%e O.  
?BZ`mrH^  
import org.rut.util.algorithm.SortUtil; X1QZEl  
k#G7`dJl  
/** 48*pKbbM4  
* @author treeroot QL!+.y%  
* @since 2006-2-2 _[Wrd?Z  
* @version 1.0 6D]G*gwk[  
*/ 4!W?z2ly~R  
public class ImprovedMergeSort implements SortUtil.Sort { t-m,~IoW  
!x / Z"  
private static final int THRESHOLD = 10; Pb&+(j  
@MH]s [{o\  
/* Z 2jMBe  
* (non-Javadoc) N28?JQha  
* D_kz R  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) mP+yjRw  
*/ on&=%tCAL  
public void sort(int[] data) { n& &U9sf?  
int[] temp=new int[data.length]; 6? ly. h$  
mergeSort(data,temp,0,data.length-1); :rc[j@|pH  
} X51$5%  
4gt "dfy+  
private void mergeSort(int[] data, int[] temp, int l, int r) { ON! G{=7  
int i, j, k; l'8wPmy%N  
int mid = (l + r) / 2; i_^NbC   
if (l == r) lD=j/    
return; 5!fW&OiY  
if ((mid - l) >= THRESHOLD) @a3v[}c*  
mergeSort(data, temp, l, mid); SytDo (_=W  
else &Y2P!\\2  
insertSort(data, l, mid - l + 1); -zkL)<7  
if ((r - mid) > THRESHOLD) ``CADiM:S  
mergeSort(data, temp, mid + 1, r); vK~KeZ\,p=  
else 4?uG> ;V  
insertSort(data, mid + 1, r - mid); UwT$IKR  
[`dipLkr  
for (i = l; i <= mid; i++) { _qNLy/AY  
temp = data; '0rwNEg  
} -{mq\GvGn  
for (j = 1; j <= r - mid; j++) { nit7|T@^  
temp[r - j + 1] = data[j + mid]; *dgN pJ 9  
} |.W;vc<  
int a = temp[l]; l[{}ZKZ  
int b = temp[r]; bncFrzp#o  
for (i = l, j = r, k = l; k <= r; k++) { ="E V@H?U  
if (a < b) { (ZsR=:9(  
data[k] = temp[i++]; HKw4}FC*  
a = temp; a$& 6a   
} else { %*}f<k{6  
data[k] = temp[j--]; <7) 6*u  
b = temp[j]; Lxrn#Z eM  
} 2 -8:qmP(  
} fbkjK`_q  
} "b7C0NE  
IV*$U7~  
/** b;ZAz  
* @param data nP5fh_/  
* @param l 1OS3Gv8jc~  
* @param i POs~xaZ`H  
*/ %W@IB8]Vr  
private void insertSort(int[] data, int start, int len) { ( "z;Q?(  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); S3wH M  
} 9hpM*wt  
} YJsi5  
} RjHpC7b*%  
} Jx?>1q=M  
wB"Gw` D  
堆排序: 5(Oc"0''H  
FQl|<l6  
package org.rut.util.algorithm.support; AW68'G*m  
hKYPH?b%  
import org.rut.util.algorithm.SortUtil; I%xJ)fIK  
IBsn>*ja<  
/** W{aNS@1  
* @author treeroot +2O_LPV$,  
* @since 2006-2-2 4N: ;Mo&B  
* @version 1.0 6>J #M  
*/ _gh7_P^H=d  
public class HeapSort implements SortUtil.Sort{ 3/05ee;|  
Bk <P~-I  
/* (non-Javadoc) *h9vMks o  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) s50ln&2  
*/ }C}_ I:=C  
public void sort(int[] data) { ^123.Ru|t  
MaxHeap h=new MaxHeap(); w7u >|x!  
h.init(data); `$-  Ib^  
for(int i=0;i h.remove(); )FPbE^s(  
System.arraycopy(h.queue,1,data,0,data.length); d5hE!=  
} s ~G{-)*  
OK(d&   
private static class MaxHeap{ 4y.[tk5  
"<#:\6aym  
void init(int[] data){ Df^S77&c!  
this.queue=new int[data.length+1]; P#PQ4uK \  
for(int i=0;i queue[++size]=data; ?Pc 3*.  
fixUp(size); p7er04/}\  
} BZ9iy~  
} Bs}>#I  
Q8i6kf!  
private int size=0; {c; 3$  
dW68lVWq_  
private int[] queue; ]+P &Y:   
W9"I++~f  
public int get() { =ndKG5  
return queue[1]; ak [)+_k_  
} @( l`_Wx  
?f&I"\y  
public void remove() { :~Y$\Ww(~  
SortUtil.swap(queue,1,size--); R3A^VE;qP  
fixDown(1); XT"c7]X  
} RkzBn  
file://fixdown T:$_1I $  
private void fixDown(int k) { bk]|C!7$  
int j; ,vPF=wq  
while ((j = k << 1) <= size) { (P-<9y@  
if (j < size %26amp;%26amp; queue[j] j++; Y{=@^4|]  
if (queue[k]>queue[j]) file://不用交换 =d}3>YHS  
break; 6Y^o8R  
SortUtil.swap(queue,j,k); {J$aA6t:"T  
k = j; $!Tw`O  
} @@jdF-Utj;  
} J7xmf,76w  
private void fixUp(int k) { 1S.~-K*X  
while (k > 1) { ':3KZ4/C  
int j = k >> 1; FQ%mNowuj  
if (queue[j]>queue[k]) 5FxU=M1gF  
break; !=:c8V  
SortUtil.swap(queue,j,k);  ~A/_\-  
k = j; r;z A `  
} 5,C,q%2  
} Df (6DuW  
t=AR>M!w~  
} M %~kh"  
^>fs  
} "L]_NS T  
`Z-`-IL  
SortUtil: j$6}r  
WmA578|l!  
package org.rut.util.algorithm; <X?F :?Mk  
}JD(e}8$!  
import org.rut.util.algorithm.support.BubbleSort; Npqbxb  
import org.rut.util.algorithm.support.HeapSort; %:*HzYf  
import org.rut.util.algorithm.support.ImprovedMergeSort; 32yNEP{  
import org.rut.util.algorithm.support.ImprovedQuickSort; eORt qX8*  
import org.rut.util.algorithm.support.InsertSort; I?QKd@  
import org.rut.util.algorithm.support.MergeSort; K@m^QioMj  
import org.rut.util.algorithm.support.QuickSort; N"TD$NrK\  
import org.rut.util.algorithm.support.SelectionSort; '#PT C,0UJ  
import org.rut.util.algorithm.support.ShellSort; uZ+<  
zlfm})+G  
/** PBmt.yF  
* @author treeroot 0*)79Sz  
* @since 2006-2-2 U{EW +>  
* @version 1.0 4%TC2Laii  
*/ (P?9Jct  
public class SortUtil { T (qu~}  
public final static int INSERT = 1; cO:x{~  
public final static int BUBBLE = 2; {\B!Rjt[T  
public final static int SELECTION = 3; %[J( ,rm  
public final static int SHELL = 4; |{ k B`  
public final static int QUICK = 5; iwbjjQPr  
public final static int IMPROVED_QUICK = 6; V~;YV]1Y  
public final static int MERGE = 7; S4w/ kml3  
public final static int IMPROVED_MERGE = 8; \ (,2^T'$J  
public final static int HEAP = 9; H< j+-u4b  
t(Uoi~#[  
public static void sort(int[] data) { #XsqTK_nk  
sort(data, IMPROVED_QUICK); 9L};vkYk#  
} |NI0zd  
private static String[] name={ ?@_dx=su  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" rfjQx]3pB  
}; O%r<I*T^r  
nFqMS|EN  
private static Sort[] impl=new Sort[]{ LdOB[W  
new InsertSort(), Dng^4VRd  
new BubbleSort(), >qE$:V "_5  
new SelectionSort(), }49?Z3  
new ShellSort(), uyj5}F+O  
new QuickSort(), ;c`B '  
new ImprovedQuickSort(), `d8TA#|`  
new MergeSort(), /y}  
new ImprovedMergeSort(), V+^\SiM  
new HeapSort() g=)@yZ3>v  
}; ;bX{7j  
r$KDNa$/a  
public static String toString(int algorithm){ xInWcQ  
return name[algorithm-1]; mWh:,[o  
} `JR dOe  
CVm*Q[5s"  
public static void sort(int[] data, int algorithm) { R:Lu)d>=  
impl[algorithm-1].sort(data); 9cLKb  
} M0|z^2  
6R25Xfm_|  
public static interface Sort { ?g'l/xuRe  
public void sort(int[] data); 2,+H;Ypi!  
} \21!NPXH2  
bu]bfnYi9  
public static void swap(int[] data, int i, int j) { GB#7w82  
int temp = data; d^7<l_u~ !  
data = data[j]; !Ej<J&e  
data[j] = temp; Rh=h{O  
} {?8rvAj Y  
} ?^dyQhb  
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