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
  • 5097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。 keD?#yY  
插入排序: 7CF>cpw  
^pew'p HQ  
package org.rut.util.algorithm.support; ^:ny  
\/SOpC  
import org.rut.util.algorithm.SortUtil; #l-zY}&  
/** Fz<1xyc(  
* @author treeroot .9z}S=ZK  
* @since 2006-2-2 1~E4]Ef:W  
* @version 1.0 $'d,X@}8  
*/ 37 ?X@@Z=  
public class InsertSort implements SortUtil.Sort{ H l(W'>*oL  
*w ^!\  
/* (non-Javadoc) 1/ j >|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) T1Z*>(M  
*/ o2$A2L9P  
public void sort(int[] data) { OKau3T]  
int temp; d^tY?*n  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ' i5}`\  
} bcu Uej:  
} =Xid"$  
} GJE+sqMX1  
e8:O2!HW  
} 2{ l|<'  
W;!V_-:  
冒泡排序: 3@O/#CP+  
~Hg*vCd ?  
package org.rut.util.algorithm.support; N|@ tP:j  
@sZ' --Y  
import org.rut.util.algorithm.SortUtil; }LX!dDuwA  
99'c\[fd'  
/** ~X<$ l+5  
* @author treeroot 7tJ#0to  
* @since 2006-2-2 :TKx>~`  
* @version 1.0 XrMw$_0)  
*/ ';.y`{/  
public class BubbleSort implements SortUtil.Sort{ }c= Y<Cdh  
#7:ah  
/* (non-Javadoc) "9hD4R  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `e7vSp  
*/ mrKIiaU<J  
public void sort(int[] data) { ${ DSH  
int temp; k'e1ZAn  
for(int i=0;i for(int j=data.length-1;j>i;j--){ #^|2PFh5  
if(data[j] SortUtil.swap(data,j,j-1); 8~.8"gQ  
} |7Z}#eP//  
} @_c&lToj_  
} g.;2N9  
} 1_9Ka V  
#ifjQ7(:  
} 5=9Eb  
>OjK0jiPf  
选择排序: d%q&[<'jf  
n ^qwE  
package org.rut.util.algorithm.support; "5N$u(: b  
yF |28KJ  
import org.rut.util.algorithm.SortUtil; \oGU6h<  
Iv9U4  
/** 0/z$W.!  
* @author treeroot :]8A;`G}  
* @since 2006-2-2 "9*MSsU  
* @version 1.0 4v5qK  
*/ SjA'<ZX>TM  
public class SelectionSort implements SortUtil.Sort { 4pcIH5)z  
u~'_Uqp  
/* p R`nQM-D  
* (non-Javadoc) d:]ZFk_*  
* T(cpU,Q  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %7\l+g,  
*/ 1Zo3K<*J  
public void sort(int[] data) { 5OFB[  
int temp; D^];6\=.i  
for (int i = 0; i < data.length; i++) { /a-s9<  
int lowIndex = i; wA,-!m  
for (int j = data.length - 1; j > i; j--) { mQU t 'j4  
if (data[j] < data[lowIndex]) { .]<iRf[\[  
lowIndex = j; G2>s#Y5(,  
} C4d CaiX  
} m*7RC4"J  
SortUtil.swap(data,i,lowIndex); C4-%|+Q i  
} A~0yMww:$  
} k"/}9[6:U5  
,CqGO %DY  
} Lke!VS!P&  
81I9xqvSd~  
Shell排序: hHOx ]  
*'{9(Oj  
package org.rut.util.algorithm.support; EQHCw<e  
G-vkkNj%e  
import org.rut.util.algorithm.SortUtil; &f)pU>Di  
G/(tgQ  
/** Ne1W!0YLK  
* @author treeroot aE:$ N#|Qa  
* @since 2006-2-2 dd6l+z  
* @version 1.0 s!F8<:FRJD  
*/ Fs=E8' b  
public class ShellSort implements SortUtil.Sort{ tgeXX1Eq!  
t""Y -M  
/* (non-Javadoc) 1^WkW\9kO  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) LiGECqWBa'  
*/ (J(SwL|  
public void sort(int[] data) { YXU2UIY<~  
for(int i=data.length/2;i>2;i/=2){ 2j{T8F\]  
for(int j=0;j insertSort(data,j,i); }^odUIj  
} o> 1+m  
} c47.,oTo  
insertSort(data,0,1); CX5>/  
} ^p%3@)&  
BGu<1$ G  
/** pYUQSsqC  
* @param data J/Ch /Sa  
* @param j |NFDrm  
* @param i W E /1h  
*/ 1wggYX  
private void insertSort(int[] data, int start, int inc) { C,<FV+r=^  
int temp; uCWBM  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Je K0><  
} 8ux  
} rZ RTQ  
} 7 3ABop  
`w "ooK  
} {~Q}{ha  
99~-TiU  
快速排序: bl|)/)6o  
2jP(D%n  
package org.rut.util.algorithm.support; IG:CWPU  
9m%+6#|  
import org.rut.util.algorithm.SortUtil; "1Y DT-I"  
a5`9mR)Y$'  
/** p%\&M bA  
* @author treeroot X#MC|Fzy@  
* @since 2006-2-2 m='_ O+ $  
* @version 1.0 @.QuIm8,  
*/ B/JMH 1r  
public class QuickSort implements SortUtil.Sort{ MBol_#H  
2>^jMln  
/* (non-Javadoc) ).MV1@s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .&KC2#4   
*/ uUv^]B 8GM  
public void sort(int[] data) { @< 0c  
quickSort(data,0,data.length-1); 1w 9zl}  
} 5~i}!n  
private void quickSort(int[] data,int i,int j){ 3#`Sk`z<  
int pivotIndex=(i+j)/2; i)]^b{5nyB  
file://swap 9N<TJp,q  
SortUtil.swap(data,pivotIndex,j); H" pwIiC  
%e/L .#0  
int k=partition(data,i-1,j,data[j]); S<w? ,Z  
SortUtil.swap(data,k,j); Z,, qmwd  
if((k-i)>1) quickSort(data,i,k-1); |1+ mHp  
if((j-k)>1) quickSort(data,k+1,j); rGQ([e  
#<-%%  
} *Oh]I|?  
/** vC^n_  
* @param data pEG!j ~  
* @param i Tx$bg(  
* @param j ,esUls'nz'  
* @return [O3)s]|  
*/ 9*[!ux7h  
private int partition(int[] data, int l, int r,int pivot) { yV) 9KGV+:  
do{ z) "(&__  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); !~}@Eoii4  
SortUtil.swap(data,l,r); r{Z4ifSl(  
} t"&qaG{  
while(l SortUtil.swap(data,l,r); _xo;[rEw8  
return l; 0T:U(5Y9  
} 5^{).fig  
#\3X;{  
} ev5m(wR  
0P4g6t}e  
改进后的快速排序: N8{ 8 a  
DC'L-]#<  
package org.rut.util.algorithm.support; 9u_D@A"aC`  
lMjeq.5nP  
import org.rut.util.algorithm.SortUtil; -9q3]nmT(  
,GF(pCZzG  
/** fvV5G,lD3h  
* @author treeroot [85tZr]  
* @since 2006-2-2 %?O$xQ.<  
* @version 1.0 {jEEAH)  
*/ x 4`RKv2m  
public class ImprovedQuickSort implements SortUtil.Sort { Fma#`{va  
/t _QA  
private static int MAX_STACK_SIZE=4096; \~>7n'd ]  
private static int THRESHOLD=10; H66F4i  
/* (non-Javadoc) iGIry^D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Rw`64L_  
*/ (ZD~Q_O-  
public void sort(int[] data) { %/%TR@/  
int[] stack=new int[MAX_STACK_SIZE]; 1Zgv+.  
 ]l=iKl  
int top=-1; *#o2b-[V  
int pivot; ])Z p|?Y  
int pivotIndex,l,r; W!b'nRkq  
|k/;1.b!9(  
stack[++top]=0; -^$IjK-N  
stack[++top]=data.length-1; sbq:8P#  
?#/~ BZR!  
while(top>0){ tr%VYc|}  
int j=stack[top--]; 7k#0EhN1>  
int i=stack[top--]; UH7FIM7kX  
a)rT3gl  
pivotIndex=(i+j)/2;  75T+6 u  
pivot=data[pivotIndex]; ce1U}">11  
-nGLmMvd  
SortUtil.swap(data,pivotIndex,j); P,K^ oz}  
BBRZlx  
file://partition b'(Hwc\ t  
l=i-1; ,o6,(jJU  
r=j; 2;ac&j1  
do{ &MJ`rj[%  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 1,pPLc(  
SortUtil.swap(data,l,r); VJ-To}  
} l }]"X@&G  
while(l SortUtil.swap(data,l,r); [}?E,1Q3  
SortUtil.swap(data,l,j); f(*iagEy  
<-=g)3_  
if((l-i)>THRESHOLD){ s'k} .}  
stack[++top]=i;  y7.oy"  
stack[++top]=l-1; RWXN  
} C=P}@|K  
if((j-l)>THRESHOLD){ [LKzH!  
stack[++top]=l+1; g,\O}jT\'  
stack[++top]=j; &nwk]+,0W#  
} 6G>loNM^  
I\$?'q>  
} k$ w#:Sx  
file://new InsertSort().sort(data); 0Q:l,\lY  
insertSort(data); ;% l0Ml>  
} zB#.EW  
/** 2%~+c|TH.)  
* @param data c^}DBvG,  
*/ 4siq  
private void insertSort(int[] data) { 18ON`j  
int temp; _*u$U  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); p1 mY!&e(  
} !~ZAm3GwL  
} WTu1t]  
} | =tGrHL  
+Sg+% 8T  
} UkM#uKr:  
r.v.y[u  
归并排序: l+<AM%U\ V  
>ToI$~84  
package org.rut.util.algorithm.support; nF=[m; ~  
9]^NAlno  
import org.rut.util.algorithm.SortUtil; V_jGL<X|  
SnG XEQ  
/** kQO5sX$;  
* @author treeroot QzV%m0  
* @since 2006-2-2 ZEG~ek=jM  
* @version 1.0 <ua! ]~  
*/ .}iRe}=  
public class MergeSort implements SortUtil.Sort{ MQl GEJ  
>xIb|Yp)&  
/* (non-Javadoc) D #C\| E:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Twpk@2=l  
*/ '$q3Ze  
public void sort(int[] data) { F[~~fm_  
int[] temp=new int[data.length]; k3&/Ei5  
mergeSort(data,temp,0,data.length-1); C@9K`N[*  
} "Q;Vy t  
Nq[-.}Z6  
private void mergeSort(int[] data,int[] temp,int l,int r){ \N)!]jq  
int mid=(l+r)/2; ]N6UY  
if(l==r) return ; qDjH^f  
mergeSort(data,temp,l,mid); -hZw.eChQa  
mergeSort(data,temp,mid+1,r); ;rt\  
for(int i=l;i<=r;i++){ Y|-:z@n6C  
temp=data; ` 6pz9j]  
} K,Hxe;-  
int i1=l; ,gIeQ!+vy  
int i2=mid+1; lYy:A%yDT  
for(int cur=l;cur<=r;cur++){ @[j%V ynf  
if(i1==mid+1) L.% zs  
data[cur]=temp[i2++]; -;GB Xq  
else if(i2>r) 8n/[oDc]  
data[cur]=temp[i1++]; 5$/Me=g<  
else if(temp[i1] data[cur]=temp[i1++]; 6\6g-1B`  
else 7E R!>l+  
data[cur]=temp[i2++]; %m "9 =C  
} q`HK4~i,  
} t[\6/`YH  
h`Xl~=  
} JgcMk]|'  
gTg[!}_;\N  
改进后的归并排序: j/hm)*\io  
K9S(Xip  
package org.rut.util.algorithm.support; /!W',9ua6  
1N+ju"2R  
import org.rut.util.algorithm.SortUtil; Ss'Dto35Q  
9zaSA,}  
/** HUx -8<ws  
* @author treeroot 6V-JyTcxGI  
* @since 2006-2-2 &[ $t%:`  
* @version 1.0 W(PNw2  
*/ @gm!D`YL  
public class ImprovedMergeSort implements SortUtil.Sort { Gvqu v\  
slV]CXW)t  
private static final int THRESHOLD = 10; ]9hhAT44  
hu:x,;`9H  
/* K]ds2Kp&  
* (non-Javadoc) b`|,rfq^AZ  
* #6nuiSF  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) VQn]"G( `  
*/ _sF Ad`  
public void sort(int[] data) { /mnV$+BE  
int[] temp=new int[data.length]; pYX!l:hk  
mergeSort(data,temp,0,data.length-1); h~k+!\  
} =_`cY^ib+  
r1.OLn?C  
private void mergeSort(int[] data, int[] temp, int l, int r) { O @{<?[  
int i, j, k; S|T*-?|  
int mid = (l + r) / 2; Lg+cHaA  
if (l == r) >!#or- C  
return; Ej'N !d.  
if ((mid - l) >= THRESHOLD) R3E|seR  
mergeSort(data, temp, l, mid); 10r9sR  
else $H1igYc  
insertSort(data, l, mid - l + 1); 1K[y)q  
if ((r - mid) > THRESHOLD) -7A2@g  
mergeSort(data, temp, mid + 1, r); laaoIL^  
else &u~%5;  
insertSort(data, mid + 1, r - mid); -_BjzA|  
n;~6'f xe  
for (i = l; i <= mid; i++) { ~{[,0,lWU  
temp = data; :bz;_DZP  
} BzI(  
for (j = 1; j <= r - mid; j++) { A7TV-eWG  
temp[r - j + 1] = data[j + mid]; %(g!,!l)  
} zCSLV>.F  
int a = temp[l]; @;>Xy!G  
int b = temp[r]; 5>~q4t)6z}  
for (i = l, j = r, k = l; k <= r; k++) { >;k~B  
if (a < b) {  q #X[oVq  
data[k] = temp[i++]; |}<!O@<|  
a = temp; n)R[T.E)+  
} else { HkyN$1s  
data[k] = temp[j--]; P@Av/r  
b = temp[j]; ` NWmwmWB"  
} 2yndna-  
} $ZnVs@:S  
} G/V0Yn""  
| @p  
/** pe-%`1iC0>  
* @param data XI;F=r}'  
* @param l :47"c3J  
* @param i O\^D 6\ v  
*/ x!A5j $k0  
private void insertSort(int[] data, int start, int len) { E# *`u  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); #,rP1#?  
} !9EbG  
} PpR eqmo  
} );fPir?+  
} Hu$JCB-%  
RH&}'4JE:  
堆排序: BmCBC,j<v>  
qim|=  
package org.rut.util.algorithm.support; 5S&^mj-9  
uN(N2m  
import org.rut.util.algorithm.SortUtil; k:CSH{s5{  
SW=%>XKkh  
/** kI/%|L%6D  
* @author treeroot FO?I}G22  
* @since 2006-2-2 <u2iXH5w  
* @version 1.0 ph@2[rUp  
*/ 5z 9'~Gfb  
public class HeapSort implements SortUtil.Sort{ $kn"S>jV  
l6HT}x7OiH  
/* (non-Javadoc) 09Y:(2Qri  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P:c 'W?  
*/ @v n%  
public void sort(int[] data) { i|G /x  
MaxHeap h=new MaxHeap(); >I9|N}I  
h.init(data); q%wF=<W  
for(int i=0;i h.remove(); z. xRJ  
System.arraycopy(h.queue,1,data,0,data.length); 1DM$FG_Z-  
} ^%Fn|U\u  
7dXh,sD  
private static class MaxHeap{ zM<yd#`yt8  
n_-k <3  
void init(int[] data){ Y~I6ee,\  
this.queue=new int[data.length+1]; =8x-+u5}rK  
for(int i=0;i queue[++size]=data; P%Wl`NA P  
fixUp(size); t}Kzh`  
}  h]?[}&  
} ((tWgSZ3  
"gq _^&  
private int size=0; L&qY709  
T2i\S9X  
private int[] queue; [`=:uUf3  
2%t!3F:  
public int get() { vmT6^G  
return queue[1]; 2Jn?'76`  
} a|@1RH>7H  
LrnE6 U9  
public void remove() { D}EH9d  
SortUtil.swap(queue,1,size--); \t]aBT,  
fixDown(1); JL&ni]m  
} 'pl){aL`@u  
file://fixdown 4t0-L]v4.*  
private void fixDown(int k) { j0IuuJ+  
int j; !6{b)P  
while ((j = k << 1) <= size) { B~/ejC!  
if (j < size %26amp;%26amp; queue[j] j++; U%_6'5s{^  
if (queue[k]>queue[j]) file://不用交换 PoRL35  
break; M@O<b-  
SortUtil.swap(queue,j,k); u3_AZ2-;  
k = j; \|Ya*8V  
} =!PUKa3f<  
} 5b%zpx0Y  
private void fixUp(int k) { 9Q*zf@w  
while (k > 1) { \}NZ] l  
int j = k >> 1; R,[+9U|4V  
if (queue[j]>queue[k]) yy$7{9!  
break; ekO*(vQ~  
SortUtil.swap(queue,j,k); Ix'GP7-m_  
k = j; }J\KnaKo  
} LQ=Fck~[r  
} i+B tz-  
!FJ_\UST0  
} Q4&<RWbT^  
^W<uc :L7  
} |Xa|%f  
K6z-brvw "  
SortUtil: b. oA}XP  
9 A1w5|X  
package org.rut.util.algorithm; O,!4 W\s  
AC/82$  
import org.rut.util.algorithm.support.BubbleSort; 2[$` ]{U  
import org.rut.util.algorithm.support.HeapSort; <t4l5nr#  
import org.rut.util.algorithm.support.ImprovedMergeSort; Wy,Tf*[  
import org.rut.util.algorithm.support.ImprovedQuickSort; ?u /i8  
import org.rut.util.algorithm.support.InsertSort; Ue]GHJ2  
import org.rut.util.algorithm.support.MergeSort; f=*xdOB3  
import org.rut.util.algorithm.support.QuickSort; h5R5FzY0&  
import org.rut.util.algorithm.support.SelectionSort; NI% ()  
import org.rut.util.algorithm.support.ShellSort; @awN*mO  
0qMf6  
/** OL)M`eVQ'  
* @author treeroot  p(Bn!  
* @since 2006-2-2 |p{FSS  
* @version 1.0 ?$FvE4!n  
*/ 'Z(4Wuwb  
public class SortUtil { =8)q-{p3  
public final static int INSERT = 1; <y5f[HjLy  
public final static int BUBBLE = 2; B|+tK  
public final static int SELECTION = 3; S)d_A  
public final static int SHELL = 4; Z]I yj 97  
public final static int QUICK = 5; Gn%gSH/  
public final static int IMPROVED_QUICK = 6; [sH[bmLR  
public final static int MERGE = 7; za@`,Yq  
public final static int IMPROVED_MERGE = 8; {BKr/) H  
public final static int HEAP = 9; H&zhYKw  
S vR? nN|  
public static void sort(int[] data) { a uz2n  
sort(data, IMPROVED_QUICK); 1u0 NG)*f  
} ,zY!EHpx  
private static String[] name={ u6(>?r-  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" &MsBcP[  
}; SZQ4e  
)51H\o  
private static Sort[] impl=new Sort[]{ )q+9_KU q  
new InsertSort(), xkzC+ _A  
new BubbleSort(), bbO1`b-  
new SelectionSort(), N/fH%AtM  
new ShellSort(), |k^ *  
new QuickSort(), 4?{e?5)  
new ImprovedQuickSort(), "|l-NUe  
new MergeSort(), ,:QDl  
new ImprovedMergeSort(), BnLWC  
new HeapSort() W8 m*co  
}; saaN$tU7  
0jN?5j  
public static String toString(int algorithm){ K q0!.455  
return name[algorithm-1]; zWh[U'6  
} ]o]*&[C  
)gR !G]Y  
public static void sort(int[] data, int algorithm) { =a .avOZ  
impl[algorithm-1].sort(data); X6dv+&=?  
} cQMb+Q2Yw  
ard<T}|N  
public static interface Sort { \kGi5G]  
public void sort(int[] data); *rk!`n&  
} Mo2b"A;}|  
s) vHLf4T  
public static void swap(int[] data, int i, int j) { 6M`N| %  
int temp = data; V5{^R+_)Ya  
data = data[j]; 8Dq;QH}  
data[j] = temp; 0FV?By  
} LGm>x  
} -a[] #v9  
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
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
10+5=?,请输入中文答案:十五