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
  • 5824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。 xwH?0/  
插入排序: 033T>qY  
pW]4bx@E  
package org.rut.util.algorithm.support; gXH[$guf  
;=< ^0hxer  
import org.rut.util.algorithm.SortUtil; ~Gqno  
/** 5c;h &  
* @author treeroot Zv_jy@k  
* @since 2006-2-2 o1/lZm{\~n  
* @version 1.0 uyF|O/FC  
*/ \)48904^  
public class InsertSort implements SortUtil.Sort{ ^o !O)D-q  
QQpP#F|w  
/* (non-Javadoc) /n4pXT  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) o|j*t7  
*/ IjfxR mV  
public void sort(int[] data) { $j 5,%\4<  
int temp; +]@Az.E  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); lI/0:|l  
} 7DfTfTU6  
} K"V:<a  
} aRc'  
)){xlFA}  
} H\GkW6  
|Cdvfk  
冒泡排序: Kwhdu<6  
{R^'=(YFy  
package org.rut.util.algorithm.support; sgr=w+",Q  
%ObD2)s6:^  
import org.rut.util.algorithm.SortUtil; 3[XQR8o  
[Lp,Hqi5  
/** v[lnw} =m9  
* @author treeroot K{l5m{:%  
* @since 2006-2-2 S }>n1F_  
* @version 1.0 L}j0a>=x4  
*/ \NqEw@91B  
public class BubbleSort implements SortUtil.Sort{ s(_+!d6  
cW``M.d'F  
/* (non-Javadoc) c[ht`!P  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3g~^LZ66  
*/ /i)Hb`(S  
public void sort(int[] data) { IOK}+C0e  
int temp; Uw<&Wm`'  
for(int i=0;i for(int j=data.length-1;j>i;j--){ x>~p;z#VX  
if(data[j] SortUtil.swap(data,j,j-1); ~B$b)`*  
} !D o,>gO  
} B/"2.,  
} _iE j  
} lr2 rQo >  
c {I"R8  
} p[WX'M0f  
y>\S@I  
选择排序: zEw >SP1,  
2>\\@ 1  
package org.rut.util.algorithm.support; 4 UAvw  
+^6}   
import org.rut.util.algorithm.SortUtil; n$2RCQ  
\nqo%5XL  
/** jLcHY-P0V  
* @author treeroot Vdn.)ir~P  
* @since 2006-2-2 $gMCR b,  
* @version 1.0 %So] 3;'  
*/ XV'fW~j\  
public class SelectionSort implements SortUtil.Sort { yW.COWL=)  
!~lW3  
/*  l>v{  
* (non-Javadoc) *wi}>_\  
* Q;nAPS  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) m h;X~.98  
*/ Icp0A\L@  
public void sort(int[] data) { 8G ]w,eF  
int temp; [$ :  
for (int i = 0; i < data.length; i++) { ^^(<c,NX#M  
int lowIndex = i; ;5 <-)  
for (int j = data.length - 1; j > i; j--) { tLcEl'Eo  
if (data[j] < data[lowIndex]) { 0>!/rR7  
lowIndex = j; WP-jtZ?!"  
} }iIbcA  
} J -Qh/d%]  
SortUtil.swap(data,i,lowIndex); S:Tm23pe  
} ' eO/PnYW  
} wUi(3g|A  
FoPginZ]J  
} J?P]EQU  
|t\|:E>" }  
Shell排序: uC~g#[I QM  
#1$}S=8*f  
package org.rut.util.algorithm.support; r9ke,7?  
6kvV  
import org.rut.util.algorithm.SortUtil; X9~m8c){z  
dyQh:u -  
/** \Kd7dK9&]  
* @author treeroot ~"ONAX  
* @since 2006-2-2 ${U6=  
* @version 1.0 oVZ4bRl   
*/ u9![6$R  
public class ShellSort implements SortUtil.Sort{ >uHS[ _`nM  
gZ(O)uzv  
/* (non-Javadoc) '=} Y2?(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Ohl} X 1  
*/ NcL =z o<  
public void sort(int[] data) { lVeH+"M?  
for(int i=data.length/2;i>2;i/=2){ ~SV Q;U)-  
for(int j=0;j insertSort(data,j,i); =sQ(iso%f  
}  ~q%  
} J(d2:V{h  
insertSort(data,0,1); ccO aCr  
} E!aq?`-'!  
F(CRq`  
/** q|q:: q*  
* @param data [Hcaw   
* @param j eX<K5K.B  
* @param i wsg//Ec]  
*/ N4[E~ -  
private void insertSort(int[] data, int start, int inc) { :$"7-a %f  
int temp; R'EW7}&  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); TC-f%1(  
} GhnE>d;i  
} L+Pc<U)T+  
} B5Va%?Wg?H  
- s|t^  
} I=YCQ VvA  
ZBj6KqfST%  
快速排序: 7b.U!Ju  
`=!p$hg($  
package org.rut.util.algorithm.support; ez0\bym  
>=!AL,:  
import org.rut.util.algorithm.SortUtil; rh$1-Y  
6=>7M b$  
/**  ,o&<WMD  
* @author treeroot 96W4 c]NT  
* @since 2006-2-2 |h1^G v  
* @version 1.0 tL8't]M,  
*/ g)M#{"H  
public class QuickSort implements SortUtil.Sort{ P $h;SK  
-fM1$/]  
/* (non-Javadoc) 0^>E`/  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) v:P!(`sF  
*/ hCLk#_  
public void sort(int[] data) { ct\<;I(H  
quickSort(data,0,data.length-1); 0=m&^Jpp  
} szn%wZW  
private void quickSort(int[] data,int i,int j){ @+0V& jc  
int pivotIndex=(i+j)/2; T` ;k!F46  
file://swap  3Vu8F"  
SortUtil.swap(data,pivotIndex,j); JfKg_&hM  
jI#z/a!j:  
int k=partition(data,i-1,j,data[j]); t/Z!O z6ZE  
SortUtil.swap(data,k,j); P7 8uq  
if((k-i)>1) quickSort(data,i,k-1); >H?uuzi  
if((j-k)>1) quickSort(data,k+1,j); w$% BlqN  
xL&PJ /'  
} ^%zNa6BL  
/** |Y4q+sDW  
* @param data dKe@JQ+-z  
* @param i !@yQK<0  
* @param j S%V%!803!  
* @return nB}e1 /_y  
*/ I:/4t^%  
private int partition(int[] data, int l, int r,int pivot) { sVD([`Nmc  
do{ j}RM.C\7  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); akrCs&Kka5  
SortUtil.swap(data,l,r); hE5G!@1F  
} 3dU#Ueu  
while(l SortUtil.swap(data,l,r); N('3oy#8  
return l; 0sabh`iQ^  
} #]5)]LF1q  
S W-0h4  
} ;Yu>82o.:  
-~0'a  
改进后的快速排序: GsRt5?X/*  
a?\ `  
package org.rut.util.algorithm.support; )Jz!Ut  
}JJ::*W2n  
import org.rut.util.algorithm.SortUtil; Dzm qR0)  
9>zDJx  
/** 8"pA9Mr  
* @author treeroot "{6KZ!+0  
* @since 2006-2-2 +TWJNI  
* @version 1.0 ,"C&v~  
*/ ^B6`e^ <  
public class ImprovedQuickSort implements SortUtil.Sort { |>[X<>m  
SJF2k[da  
private static int MAX_STACK_SIZE=4096; ~:s!].H  
private static int THRESHOLD=10; Z0z)  
/* (non-Javadoc) L]a|vp  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) wISzT^RS  
*/ }(rzH}X@  
public void sort(int[] data) { *q[^Q'jnN  
int[] stack=new int[MAX_STACK_SIZE]; Y/!0Q6<[2Y  
tdb4?^.s  
int top=-1; fIlIH  
int pivot; u4xA'X'~R  
int pivotIndex,l,r; Z_!9iA:X  
^zkd{ov  
stack[++top]=0; `O jvt-5}E  
stack[++top]=data.length-1; J b|mXNcL  
X[Y #+z4  
while(top>0){ `ITDTZ J  
int j=stack[top--]; 34]%d<;A  
int i=stack[top--]; ~JT lPU'  
H|'$dO)W  
pivotIndex=(i+j)/2; _qk9o  
pivot=data[pivotIndex]; rcpvH}N:  
@)06\ h  
SortUtil.swap(data,pivotIndex,j); Q9nu"x %  
6p e4Ni7I2  
file://partition hiT9H5 6 >  
l=i-1; Ubpg92  
r=j; W|FNDP0  
do{ MQhYJ01i  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); UfO'.8*v  
SortUtil.swap(data,l,r); &8.z$}m  
} l!Nvn$h m  
while(l SortUtil.swap(data,l,r); AZ}%MA; q  
SortUtil.swap(data,l,j); /}[zA@  
..]B9M.  
if((l-i)>THRESHOLD){ c '/2F0y  
stack[++top]=i; b<48#Qy~l  
stack[++top]=l-1; ,\Z8*Jr3Q  
} Q&tFv;1w6  
if((j-l)>THRESHOLD){ baA HP "  
stack[++top]=l+1; mn,=V[f  
stack[++top]=j; #`2GAM];7  
} WodF -bE  
l ,ZzB,"  
} X6n|Xq3k  
file://new InsertSort().sort(data); `z5v}T  
insertSort(data);  #=>kw^5  
} ye9QTK6$,  
/** I*%&)Hj~  
* @param data gDgP;i d  
*/ CA'hvXb.  
private void insertSort(int[] data) { P2s^=J0@  
int temp; `7+tPbjs  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); K1CMLX]m  
} sz){uOI  
} \=TWYj_Ah  
} )GQ D*b  
us(sZG  
} u~j'NOv  
H 7 o$O  
归并排序: `=WzG"  
^2P;CAjj-  
package org.rut.util.algorithm.support; Yf%[6Y{  
2-/YYe;C  
import org.rut.util.algorithm.SortUtil; 5LnB]dW  
Qq6%53  
/** a2 IV!0x  
* @author treeroot t(Cq(.u`:  
* @since 2006-2-2 \v B9fA:*  
* @version 1.0 a'(lVZA;  
*/ +/1P^U /  
public class MergeSort implements SortUtil.Sort{ r5<e}t-  
zcbA)  
/* (non-Javadoc) 9;'>\ImI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) E9 :|8#b  
*/ Xb8:*Y1'  
public void sort(int[] data) { b3jU~L$  
int[] temp=new int[data.length]; }6b7a1p  
mergeSort(data,temp,0,data.length-1); ?3e!A9x  
} \Mh4X`<e  
_,Io(QS  
private void mergeSort(int[] data,int[] temp,int l,int r){ KG7X8AaK#  
int mid=(l+r)/2; !'c6Hs  
if(l==r) return ; t~udfOvY  
mergeSort(data,temp,l,mid); H znI R  
mergeSort(data,temp,mid+1,r); qugPs(uQ  
for(int i=l;i<=r;i++){ +$Ddd`J'  
temp=data; oC;l5v<  
} Sv CK;$:  
int i1=l; w2RESpi  
int i2=mid+1; 9 ^=t@  
for(int cur=l;cur<=r;cur++){ M ?: f^  
if(i1==mid+1) vs)HbQ  
data[cur]=temp[i2++]; (>kBmK1Aj  
else if(i2>r) '3Y0D1`v  
data[cur]=temp[i1++]; 'bQ s_  
else if(temp[i1] data[cur]=temp[i1++]; ;nHo%`Zt  
else -6*OF.Ag`  
data[cur]=temp[i2++]; 8M5!5Jzv  
} J_)z:`[yE  
} ! S$oaCxM  
Ve')LY<  
} M2;(+8 b  
J,&`iL-  
改进后的归并排序: ) J:'5hz  
Uzm[e%/`  
package org.rut.util.algorithm.support; )x5$io   
"m\UqQGX  
import org.rut.util.algorithm.SortUtil; lMI ix0sSj  
cC(ubUR  
/** B "s8i{Vm  
* @author treeroot "|~B};|MFF  
* @since 2006-2-2 EZa{C}NQ$2  
* @version 1.0 QL|:(QM  
*/ E|6Z]6[  
public class ImprovedMergeSort implements SortUtil.Sort { kcZ;SYosj  
-qnXa  
private static final int THRESHOLD = 10; 71.:p,Z@z  
IQIb\OUo!v  
/* ,nuDoc  
* (non-Javadoc) Z-;uzx  
* 5)o-]S>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [F9KC^%S  
*/ M cMK|_H  
public void sort(int[] data) { _<' kzOj  
int[] temp=new int[data.length]; Vzv.e6_  
mergeSort(data,temp,0,data.length-1); He$mu=$q{  
} n3@g{4~  
[laL6  
private void mergeSort(int[] data, int[] temp, int l, int r) { WRU@i;l  
int i, j, k; MjF.>4  
int mid = (l + r) / 2; 1rzq$,O  
if (l == r) h-v &I>  
return; )Q pP1[  
if ((mid - l) >= THRESHOLD) ,uD*FSp>  
mergeSort(data, temp, l, mid); N#6A>  
else {Z{NH:^  
insertSort(data, l, mid - l + 1); j~0ZE -e  
if ((r - mid) > THRESHOLD) N<i Vs  
mergeSort(data, temp, mid + 1, r); 7=ga_2  
else PXQ9P<m  
insertSort(data, mid + 1, r - mid); ez<wEt S  
SO jDtZ  
for (i = l; i <= mid; i++) { 2b&;Y/z  
temp = data; keq[ 6Lv  
} mWFZg.#?  
for (j = 1; j <= r - mid; j++) { .$x[!fuuR&  
temp[r - j + 1] = data[j + mid];  ( Vv[  
} `?|]:7'<  
int a = temp[l]; ,Vn]Ft?n  
int b = temp[r]; ~v,KI["o  
for (i = l, j = r, k = l; k <= r; k++) { a0j.\g  
if (a < b) { {q>4:lsS  
data[k] = temp[i++]; q,>F#A '  
a = temp; F'_8pD7  
} else { tMk>Bx9[  
data[k] = temp[j--]; u9^;~i,  
b = temp[j]; [/,6O  
} jN[6JY1  
} - 5Wt9  
} 5J#g JFA  
?m7"G)  
/** *A9{H>Vq  
* @param data $YQ&\[pDA  
* @param l ok _{8z\#  
* @param i Zdg{{|mm  
*/ 9i[2z:4HJ  
private void insertSort(int[] data, int start, int len) { !eoec2h#5  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); KKXb,/  
} Ln%_8yth  
} hGHzO  
} m95$V&  
} G[-jZ  
Q+M3Pqy  
堆排序: &Gwh<%=U  
KgAX0dM  
package org.rut.util.algorithm.support; E1v<-UPbA  
@Iatlz*W  
import org.rut.util.algorithm.SortUtil; 07Cuoqt2  
J+|V[E<x  
/** K'/x9.'%  
* @author treeroot .7rsbZzs  
* @since 2006-2-2 rzj'!~>U  
* @version 1.0 Q>*K/%KD  
*/ L%s""nP  
public class HeapSort implements SortUtil.Sort{ !K)|e4$  
Bq8<FZr#!  
/* (non-Javadoc) 3yX^R^`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1vd+p!n  
*/ eajL[W^>  
public void sort(int[] data) { qz2d'OhmtH  
MaxHeap h=new MaxHeap(); u[qtuM?&  
h.init(data); V-u\TiL  
for(int i=0;i h.remove(); &bx,6dX  
System.arraycopy(h.queue,1,data,0,data.length); ;<rJ,X#  
} 4"=pcHNV  
`Yve  
private static class MaxHeap{ C@W0fz  
[0@i,7{ZqE  
void init(int[] data){ qeGOSGc_  
this.queue=new int[data.length+1]; (<-0UR]%q;  
for(int i=0;i queue[++size]=data; M#|xj <p  
fixUp(size); 0CYI,V  
} [%q":Ig  
} @#">~P|Hp  
Hc!_o`[{l  
private int size=0; .YbD.{]D  
_JoA=< O!  
private int[] queue; b5C #xxIO  
JH9CN  
public int get() { lPP7w`[PA  
return queue[1]; o*VQH`G*|g  
} .kV/ 0!q?  
J{I?t~u  
public void remove() { xRmB?kM3]5  
SortUtil.swap(queue,1,size--); fN;y\!q5  
fixDown(1); " 8v  
} NU"X*g-x^  
file://fixdown xNU}uW>>T  
private void fixDown(int k) { R lu;l  
int j; U6"50G~u  
while ((j = k << 1) <= size) { _1QNO#X  
if (j < size %26amp;%26amp; queue[j] j++; >FO=ioNY  
if (queue[k]>queue[j]) file://不用交换 :mL.Y em*'  
break; IAQ=d4V&  
SortUtil.swap(queue,j,k); S]+}Zyg  
k = j; M_DkjuR  
} 54-x 14")  
} Gl(,%~F9i  
private void fixUp(int k) { ?g2K&  
while (k > 1) { +=v|kd  
int j = k >> 1; A2 r RYzN;  
if (queue[j]>queue[k]) B _ >|Mo/  
break; l!2.)F`x  
SortUtil.swap(queue,j,k); TDFv\y}yc  
k = j; y!].l0e2a  
} 7}MWmS^8j  
} oUH\SW8?  
6$Y1[  
}  E2l.  
08Gr  
} ?Z"}RMM)8  
]T1"3 [si  
SortUtil:  GU9`;/  
2 q>4nN  
package org.rut.util.algorithm; 0nX5 $Kn  
%"tf`,d~3  
import org.rut.util.algorithm.support.BubbleSort; gxiJ`. D=  
import org.rut.util.algorithm.support.HeapSort; sz5@=  
import org.rut.util.algorithm.support.ImprovedMergeSort; v%r!}s  
import org.rut.util.algorithm.support.ImprovedQuickSort; f/xBR"'  
import org.rut.util.algorithm.support.InsertSort; |?8wyP  
import org.rut.util.algorithm.support.MergeSort; Oc1ZIIkh\  
import org.rut.util.algorithm.support.QuickSort; BC^WPr  
import org.rut.util.algorithm.support.SelectionSort; lsd\ `X5,  
import org.rut.util.algorithm.support.ShellSort; ( s*}=  
d)@M MF  
/** i*3_ivc)  
* @author treeroot Ek:u[Uw\  
* @since 2006-2-2 /V^S)5r  
* @version 1.0 tpS F[W  
*/ BFY~::<b  
public class SortUtil { R_csKj  
public final static int INSERT = 1; 4)?c[aC4P  
public final static int BUBBLE = 2; 'W)x<Iey1  
public final static int SELECTION = 3; QJ QQ-  
public final static int SHELL = 4; yq2Bz7P  
public final static int QUICK = 5; Nt)9- \T  
public final static int IMPROVED_QUICK = 6; a v/=x  
public final static int MERGE = 7; ie)Qsw@  
public final static int IMPROVED_MERGE = 8; 1FuChd  
public final static int HEAP = 9; CBc}N(9  
p"ZPv~("V  
public static void sort(int[] data) { d7 @ N~<n  
sort(data, IMPROVED_QUICK); PO #FtG  
} FU<rE&X2:  
private static String[] name={ }k%>%xQ.  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" }r N"H4)  
}; _=rXaTp  
d 1z   
private static Sort[] impl=new Sort[]{ Ofn:<d  
new InsertSort(), L^22,B 0  
new BubbleSort(), p47~vgJN  
new SelectionSort(), $>+-=XMVB  
new ShellSort(), ;9rQN3J$gn  
new QuickSort(), k[][Md2Vh  
new ImprovedQuickSort(), g&"Nr aQM9  
new MergeSort(), TYp{nWwi  
new ImprovedMergeSort(), g wk\[I`;  
new HeapSort() *J6qL! ["  
}; V[% r5!83H  
0pu'K)Rb  
public static String toString(int algorithm){ :]x)lP(3E  
return name[algorithm-1]; dX<UruPA  
} (7"qT^s3  
i"r=b%;;  
public static void sort(int[] data, int algorithm) { 7+ c?eH  
impl[algorithm-1].sort(data); G|o-C:~  
} &" b0`&l  
Lbd_L  
public static interface Sort { 0FXM4YcrJO  
public void sort(int[] data); 8F%T Z M  
} M 3^p,[9r#  
g?`w)O 7v  
public static void swap(int[] data, int i, int j) { !0cfz5t  
int temp = data; Kl^Yq  
data = data[j]; s4w<X}O_  
data[j] = temp; Q_ $AGF  
} Ros5]5=dP  
} :yv!  x  
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:
3+5=?,请输入中文答案:八 正确答案:八