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
  • 5632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。 OK\A</8r  
插入排序: 1AU#%wIEP  
W^G>cC8.L  
package org.rut.util.algorithm.support; .w]GWL  
[ :zO}r:  
import org.rut.util.algorithm.SortUtil; YX` 7Hm,  
/** F4K0) ;  
* @author treeroot 5< ja3  
* @since 2006-2-2 HeG)/W?r  
* @version 1.0 `\+@Fwfx  
*/ 8cA~R-  
public class InsertSort implements SortUtil.Sort{ A\#iXOd  
S%Us5`sd  
/* (non-Javadoc) mQY_`&Jq  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g H G  
*/ 9 -rNw?7  
public void sort(int[] data) { aJcf`<p   
int temp; -N"&/)  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 0X^Ke(/89  
} z(H^..<!5  
} <A# l 35  
} (7r<''  
eQ&ZX3*}  
} P><o,s"v  
Jej` ;I  
冒泡排序: -e8}Pm "  
t 89!Ihk  
package org.rut.util.algorithm.support; 6qaulwV4t  
!=N"vD*  
import org.rut.util.algorithm.SortUtil; 0A( +ZMd  
N"3b{Qi o  
/** T8HF|%I  
* @author treeroot 1n@8Kv  
* @since 2006-2-2 2"B_At  
* @version 1.0 yfm^?G|sW  
*/ 'Tc]KXD6  
public class BubbleSort implements SortUtil.Sort{ {\(L%\sV@  
^g`&7tX  
/* (non-Javadoc) lg b?)=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4vwTs*eB `  
*/ pbU!dOU~e  
public void sort(int[] data) { MzL1Bh!M  
int temp; <^lRUw  
for(int i=0;i for(int j=data.length-1;j>i;j--){ *;fw%PW  
if(data[j] SortUtil.swap(data,j,j-1); Q^#;WASi  
} D`VM6/iQR  
} IqD_GL)Ms  
} %Jrt4sg[j-  
} z5r$M  
V7Mh-]  
} 1+U  
YxP@!U9dE,  
选择排序: />9O R  
Iwc{R8BV  
package org.rut.util.algorithm.support; EMfdBY5  
!H}vu]R  
import org.rut.util.algorithm.SortUtil; afb+GA!  
9t#S= DP  
/** mD/MJt5  
* @author treeroot b%S62(qP  
* @since 2006-2-2 wV ^V]c?U  
* @version 1.0 E,f>1meN=  
*/ \ 5,MyB2/`  
public class SelectionSort implements SortUtil.Sort { INyk3`FT  
y})70w@ +_  
/* &Ky_v^  
* (non-Javadoc) Yl.0aS  
* YR;^hs?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4M^G`WA}t9  
*/ P'O#I}Dmw<  
public void sort(int[] data) { -%I2[)F<  
int temp; V.{H9n]IO  
for (int i = 0; i < data.length; i++) { izx#3u$P  
int lowIndex = i; \l@,B +)  
for (int j = data.length - 1; j > i; j--) { 0s>/mh;  
if (data[j] < data[lowIndex]) { e@ \p0(  
lowIndex = j; Iy6$7~  
} >~Qr  
} ubmrlH\d  
SortUtil.swap(data,i,lowIndex); +r<0zh,n.  
} 4NdN< #Lr  
} -k7X:!>QHC  
?K3(D;5 &i  
} uy}%0vLo  
D11F.McM  
Shell排序: c~v~2DM  
<$hu   
package org.rut.util.algorithm.support; 2~t[RY  
p}<w#p |  
import org.rut.util.algorithm.SortUtil; -@Uqz781  
&RTX6%'KY  
/** Y X_ gb/A  
* @author treeroot ?PyG/W  
* @since 2006-2-2 ku..aG`  
* @version 1.0 +d%L\^?F  
*/ c?%(Dp E  
public class ShellSort implements SortUtil.Sort{ >|Cw\^  
%H+\>raLz  
/* (non-Javadoc) A?@@*$&  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C*G=cs\i  
*/ DSj(]U~r  
public void sort(int[] data) { ''kS*3  
for(int i=data.length/2;i>2;i/=2){ @e'5E^  
for(int j=0;j insertSort(data,j,i); kVD(Q ~<  
} O%ug@& S{  
}  3S&U!  
insertSort(data,0,1); DU=dLE6-P;  
} "C*B,D*}:  
yu;SH[{Wi  
/** h)me\U7UC  
* @param data @l0|*lo%  
* @param j 3<=G?of  
* @param i g(| 6~}|o+  
*/ X@|&c]]  
private void insertSort(int[] data, int start, int inc) { 4);)@&0Md~  
int temp; L.=w?%:H=  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Nlj^D m  
} 2+Wzf)tB  
} dHk{.n^p  
} 3.)b4T  
_aPh(qprc  
} 1>Q'R  
~j'l.gQb  
快速排序: S{K0.<,E  
I_q~*/<h  
package org.rut.util.algorithm.support; z7-k`(l4  
BQ jK8c<  
import org.rut.util.algorithm.SortUtil; jp+_@S>  
y4Er @8I`  
/** %AW4.3()8  
* @author treeroot _xLHrT!y  
* @since 2006-2-2 >5 b/or  
* @version 1.0 -ti{6:H8  
*/ x^*1gv $o  
public class QuickSort implements SortUtil.Sort{ #pHs@uvO  
_Zc%z@}  
/* (non-Javadoc) sFDG)  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) n& $^04+i  
*/ c '\SfW<  
public void sort(int[] data) { |([R'Orm  
quickSort(data,0,data.length-1); auWXgkwZs/  
} 9,]5v +  
private void quickSort(int[] data,int i,int j){ [= "r<W0  
int pivotIndex=(i+j)/2; p#KW$OQ]8  
file://swap ~l~Tk6EM  
SortUtil.swap(data,pivotIndex,j); :|1.seLQ  
\x >65;  
int k=partition(data,i-1,j,data[j]); !rhk $ L  
SortUtil.swap(data,k,j); \b*X:3g*  
if((k-i)>1) quickSort(data,i,k-1); ueG|*[  
if((j-k)>1) quickSort(data,k+1,j); \ /|)HElKR  
z}Jr^>  
} =xianQ<lK  
/** rx:z#"?I  
* @param data 4@;-%H&7  
* @param i ZlKw_Sq:  
* @param j 4l8BQz}sb  
* @return MK}-<&v  
*/ q|)Q9+6$+  
private int partition(int[] data, int l, int r,int pivot) { F&;   
do{ VzlDHpG  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); b @;.F!x  
SortUtil.swap(data,l,r); M*pRv  
} vf~`eT  
while(l SortUtil.swap(data,l,r); nF)uTk  
return l; ?nKF6 f  
} 0F;,O3Q  
B ?%L  
} ;,O fJ'q^  
=GR 'V  
改进后的快速排序: kD.pzx EM  
9j|gdfb%ml  
package org.rut.util.algorithm.support; [{&jr]w`|  
IJU0[EA]F  
import org.rut.util.algorithm.SortUtil; ;9uRO*H?T  
Ps R>V)L  
/** g2p"LWex-  
* @author treeroot >adV(V<  
* @since 2006-2-2 X21dX`eMN  
* @version 1.0 >[a<pm !  
*/ o`r(`6@  
public class ImprovedQuickSort implements SortUtil.Sort { W$?e<@  
D>wZ0p b-  
private static int MAX_STACK_SIZE=4096; KhM.Tc  
private static int THRESHOLD=10; ;8B.;%qkL  
/* (non-Javadoc) O%1/ r*  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S-Ai3)t6  
*/ [B6DC`M  
public void sort(int[] data) { 3#.\  
int[] stack=new int[MAX_STACK_SIZE]; </E>tMW  
q^bO*bv  
int top=-1; @Z\~  
int pivot; aU<s<2 O)  
int pivotIndex,l,r; [>w%CY<Fd  
>xd<YwXZ  
stack[++top]=0; 3x5!a5$Y  
stack[++top]=data.length-1; M$&>5n7  
&2.+I go|G  
while(top>0){ d\]O'U)s  
int j=stack[top--]; jM__{z  
int i=stack[top--]; T{S4|G1R6  
 H+cNX\,  
pivotIndex=(i+j)/2; }e=e",eAT  
pivot=data[pivotIndex]; *_)E6Y?9  
 ^Omfe  
SortUtil.swap(data,pivotIndex,j); n,KA&)/s  
l_+A5Xy  
file://partition <TjBd1  
l=i-1; 5N1 K~".  
r=j; SFO&=P:U  
do{ _+zVpZ  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); vR]mSX3)?  
SortUtil.swap(data,l,r); T"W9YpZ  
} dERc}oAh(  
while(l SortUtil.swap(data,l,r); ="B n=>  
SortUtil.swap(data,l,j); g@E&uyM  
}aZr ou3E  
if((l-i)>THRESHOLD){ #?m{YT{P  
stack[++top]=i; ~n]NyVFP  
stack[++top]=l-1; G?[-cNdk  
} P^(.tr3t  
if((j-l)>THRESHOLD){ $Sb@zLi)  
stack[++top]=l+1; 37K U~9-A  
stack[++top]=j; oEAfowXSqk  
} lO&cCV;  
rv?!y8\  
} !`C%Fkq  
file://new InsertSort().sort(data); X,Zd=  
insertSort(data); Uh\]?G[G  
} gfVDqDF  
/** 6z]`7`G   
* @param data 'bm:u  
*/ AP ;*iyQ[  
private void insertSort(int[] data) { {]M>Y%j48  
int temp; k5s?lWH  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ZeTL$E[E}  
} irmwc'n]  
} lWlUWhLnP  
} =phiD&=  
l4Y1(  
} sU*3\  
O*4gV}:G  
归并排序: O=`o'%K<  
Hir(6Bt  
package org.rut.util.algorithm.support; *2#FRA#q  
2*YP"Ryh  
import org.rut.util.algorithm.SortUtil; N&N 82OG  
?w8p LE~E  
/** kdd7X bw-  
* @author treeroot V7n >,k5  
* @since 2006-2-2 @>CG3`?}  
* @version 1.0 dh?S[|='  
*/ 4[xA- \  
public class MergeSort implements SortUtil.Sort{ !*8#jy  
' XEK&Yi1  
/* (non-Javadoc) `~|DoSi^d  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q_v\1"c  
*/ !`Xt8q\r  
public void sort(int[] data) { <]c#)xg  
int[] temp=new int[data.length]; L-MiaKcL  
mergeSort(data,temp,0,data.length-1); bWUS9WT  
} CHg]Ul  
F;X"3F.!  
private void mergeSort(int[] data,int[] temp,int l,int r){ \ bC}&Iz6  
int mid=(l+r)/2; @F~0p5I  
if(l==r) return ; BQuRHi IV  
mergeSort(data,temp,l,mid); at=D&oy4"+  
mergeSort(data,temp,mid+1,r); tw]/,>\G  
for(int i=l;i<=r;i++){ :(+]b  
temp=data; U* 4{"  
} PbbXi  
int i1=l; ,Le&I9*%  
int i2=mid+1; -08&&H  
for(int cur=l;cur<=r;cur++){ tZdwy>;  
if(i1==mid+1) }Q47_]5  
data[cur]=temp[i2++]; 3Gc ,I:\  
else if(i2>r) [q|?f?Zl  
data[cur]=temp[i1++]; -q'xC:m  
else if(temp[i1] data[cur]=temp[i1++]; pESB Il  
else ERUs0na]  
data[cur]=temp[i2++]; muL>g_H  
} ox!|)^`$_  
} 7(yXsVq  
<QYCo1_  
} N$N;Sw  
%bCcsdK  
改进后的归并排序: 73&]En  
X_vI0YX9  
package org.rut.util.algorithm.support; YRg=yVo 2  
L@)b%Q@a  
import org.rut.util.algorithm.SortUtil; y_}K?  
:5TXA  
/** &:;/]cwj  
* @author treeroot u]]5p[ |S  
* @since 2006-2-2 #g-*n@ 1  
* @version 1.0 "j.oR}s9?#  
*/ B|w}z1.  
public class ImprovedMergeSort implements SortUtil.Sort { tXGcwoOB  
!}m 8]&  
private static final int THRESHOLD = 10; 5Z0x2 jV  
x6P^IkL:  
/* >CA1Ub&ls  
* (non-Javadoc) 1x 8]&  
* z`6KX93  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2)H|/  
*/ yZ6X$I:C  
public void sort(int[] data) { I*t}gvUt9  
int[] temp=new int[data.length]; VJPPHJ[-  
mergeSort(data,temp,0,data.length-1); 3c"{Wu-}  
} `Q[$R&\  
EH%j$=@X  
private void mergeSort(int[] data, int[] temp, int l, int r) { $x<-PN  
int i, j, k; \8H"lcj:  
int mid = (l + r) / 2; 3KZ h?~B  
if (l == r) #-8/|_*  
return; eLWzd_ln  
if ((mid - l) >= THRESHOLD) z(` kWF1<  
mergeSort(data, temp, l, mid); Z r*ytbt  
else 6Vo}Uaq4  
insertSort(data, l, mid - l + 1); IrK )N  
if ((r - mid) > THRESHOLD) ng\S%nA&J  
mergeSort(data, temp, mid + 1, r); D-/A>  
else ^B>6 !  
insertSort(data, mid + 1, r - mid); &'j77tqOk  
P#]jPW  
for (i = l; i <= mid; i++) { m[rJFSpef  
temp = data; GH!#"Sl8Z  
} r>OE[C69  
for (j = 1; j <= r - mid; j++) { ('Pd GV4V  
temp[r - j + 1] = data[j + mid]; q1j[eru  
} LNW p$"  
int a = temp[l]; W@LR!EW)  
int b = temp[r]; }r[BME  
for (i = l, j = r, k = l; k <= r; k++) { 7KLq-u-8  
if (a < b) { 0Oq1ay^  
data[k] = temp[i++]; ^YV[1~O  
a = temp; nfEk,(:  
} else { e wR0e.g  
data[k] = temp[j--]; HvU)GJ u b  
b = temp[j]; mD:!"h/  
} *&km5@*  
} :8FH{sqR  
} :/08}!_:  
-b<+Ra  
/** ]H*=Z:riu  
* @param data 3FfS+q*3S  
* @param l  K!j2AP3  
* @param i F$v G=3  
*/ "|H0 X#  
private void insertSort(int[] data, int start, int len) { f3O'lc3  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); lH 8?IkK,g  
} ofV{SeD67  
} #=2~MXa@z7  
} )Lq FZ~B  
} {Ffr l(*  
`O F\f  
堆排序: &^"m6  
8w4.|h5FP  
package org.rut.util.algorithm.support; ,k4 (b  
S!uyplYKF  
import org.rut.util.algorithm.SortUtil; G9]GK+@&F  
xK f+.6 wz  
/** l%fl=i~oN  
* @author treeroot sSxra!tv4  
* @since 2006-2-2 L=>N#QR7  
* @version 1.0 6N ^FJCs  
*/ W/+0gh7`,(  
public class HeapSort implements SortUtil.Sort{ _F$?Z  
>A6lX)  
/* (non-Javadoc) on~rrSK  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fa)G$Q  
*/ 2gi`^%#k]  
public void sort(int[] data) { S&yCclM  
MaxHeap h=new MaxHeap(); 3s+D x$Ud  
h.init(data); 2Ig.hnHj  
for(int i=0;i h.remove(); Y0DBkg  
System.arraycopy(h.queue,1,data,0,data.length); aV1(DZ83  
} awUIYAgJ3  
Z^b1i`v  
private static class MaxHeap{ ^K8Ey#T  
fz%urbJR  
void init(int[] data){ AO/R 2a(:  
this.queue=new int[data.length+1]; 0YKG`W  
for(int i=0;i queue[++size]=data; N:0mjHG  
fixUp(size); Pp?J5HW  
} Vki3D'.7N  
} <X:7$v6T|  
^z_~e@U  
private int size=0; ]P-;]*&=  
%@LVoP!@!  
private int[] queue; <~]s+"oVc  
E0w>c'kH  
public int get() { s i C/k*  
return queue[1]; X\_ku?]v  
} cu |{cy-  
1^vN?#K t  
public void remove() { 8{'L:yzMY  
SortUtil.swap(queue,1,size--);  'y1=Z  
fixDown(1); [H!V  
} ) "'J]6  
file://fixdown rZ<@MV|d  
private void fixDown(int k) { (2 X`imJ  
int j; X ZfT;!wF&  
while ((j = k << 1) <= size) { $Z #  
if (j < size %26amp;%26amp; queue[j] j++; 26j ; RV  
if (queue[k]>queue[j]) file://不用交换 EP*"=_  
break; PKk_9Xd  
SortUtil.swap(queue,j,k); XfharJ_b  
k = j; YajUdpJi  
} X180_Kt2  
} .,I^)8c  
private void fixUp(int k) { |-bAz t  
while (k > 1) { Y}QtgZEt  
int j = k >> 1; THC34u]  
if (queue[j]>queue[k]) !gu# #MrJ9  
break; /g@!#Dt  
SortUtil.swap(queue,j,k); rz5AIe>Hm  
k = j; v="i0lL_  
} Z)?B5FF  
} !;>j(xc  
@uApm~}  
} "6o}g.  
A@4sb W_  
} f!AcBfaLr  
~"xc 3(h  
SortUtil: {wVj-w=<W  
jt=%oa  
package org.rut.util.algorithm; F$X"?fj  
J4EQhuQ  
import org.rut.util.algorithm.support.BubbleSort; 7M9Ey29f  
import org.rut.util.algorithm.support.HeapSort; K?`Fpg (  
import org.rut.util.algorithm.support.ImprovedMergeSort; %|Sh|\6A!  
import org.rut.util.algorithm.support.ImprovedQuickSort; DvhJkdLB>  
import org.rut.util.algorithm.support.InsertSort; R <}UT  
import org.rut.util.algorithm.support.MergeSort; >UlAae44  
import org.rut.util.algorithm.support.QuickSort; ;W 16Hr Z  
import org.rut.util.algorithm.support.SelectionSort; k /srT<  
import org.rut.util.algorithm.support.ShellSort; [M?'N w/[S  
AUBZ7*VO  
/** ROb2g|YXG  
* @author treeroot :%!` R72  
* @since 2006-2-2 \\}tD@V"  
* @version 1.0 vuN!7*d+  
*/ Q6%dM'fR  
public class SortUtil { cc37(=o KL  
public final static int INSERT = 1; ,X^I]]  
public final static int BUBBLE = 2; D[#6jJ Ab  
public final static int SELECTION = 3; , !0-;H.Y  
public final static int SHELL = 4; H+lBb$  
public final static int QUICK = 5; 6)5Akyz4V  
public final static int IMPROVED_QUICK = 6; `0)'&HbLY  
public final static int MERGE = 7; S3fyt]pp  
public final static int IMPROVED_MERGE = 8; 9\ f%+?p  
public final static int HEAP = 9; M4rI]^lJ  
~IQ3B $4H&  
public static void sort(int[] data) { xWR<>Og.  
sort(data, IMPROVED_QUICK); *UxN~?N|  
} {&3{_Ml  
private static String[] name={ *M^(A}+O  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" !N"Y  
}; s\/$`fuhx  
]&+,`1_q  
private static Sort[] impl=new Sort[]{ #"&<^  
new InsertSort(), 7:Cq[u fl  
new BubbleSort(), pA?kv]l(  
new SelectionSort(), nNj<!}HvV  
new ShellSort(), ^t0Yh%V7  
new QuickSort(), V;@kWE>3  
new ImprovedQuickSort(), <?h,;]U  
new MergeSort(), /u&{=nU  
new ImprovedMergeSort(), y*oH"]D  
new HeapSort() a|Yry  
}; S:F8` Gh  
(:h#H[F  
public static String toString(int algorithm){ M?[~_0_J  
return name[algorithm-1]; rP%B#%;S"  
} OK8|w]-A  
_-6IB>  
public static void sort(int[] data, int algorithm) { H 5,rp4H9  
impl[algorithm-1].sort(data);  X<p'&  
} .=`r?#0  
<<vT"2Q]  
public static interface Sort { -h%!#g  
public void sort(int[] data); V(#z{!  
} e09('SON(  
q\uzmOh  
public static void swap(int[] data, int i, int j) { EEI !pi  
int temp = data; x )w6  
data = data[j]; D}i_#-^MH  
data[j] = temp; 4+1aW BJ2  
} (^lw<$N  
} 5`t MHgQO  
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