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
  • 4955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。 4PDxmH]y  
插入排序: ` Clh;  
5fuB((fd(  
package org.rut.util.algorithm.support; |x$2- RUP  
Qk#`e  
import org.rut.util.algorithm.SortUtil;  Y!*F-v@  
/** Fo$'*(i  
* @author treeroot d"~-D;  
* @since 2006-2-2 {~a+dEz  
* @version 1.0 4O1[D? )`x  
*/ qpZR-O  
public class InsertSort implements SortUtil.Sort{ x17K8De  
]<g`rR7}  
/* (non-Javadoc) t/Y)%N  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) xa]e9u%  
*/ ['#3GJz-  
public void sort(int[] data) { )a0%62  
int temp; ;($"_h  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); /^^wHW:  
} R8n/QCeY{  
} 0fP-[7P  
} 60Szn]z'8[  
`zjbyY  
} -JwwD6D  
2|:xb9#  
冒泡排序: e 0cVg  
T(4OPiKu  
package org.rut.util.algorithm.support; aA3KJa  
C'oNGOEd  
import org.rut.util.algorithm.SortUtil; , 3p$Z  
o@j)clf  
/** +L>?kr[i[  
* @author treeroot WB(Gx_o3  
* @since 2006-2-2 S3F8Chk5  
* @version 1.0 w$j!89@)  
*/ "79"SSfOc  
public class BubbleSort implements SortUtil.Sort{ /M@6r<2`i  
3V)NM%Aw  
/* (non-Javadoc) dWDM{t\}\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \Zbi`;m?  
*/ 6>R|B?I%  
public void sort(int[] data) { 9aKt (g6  
int temp; R\^XF8n6/  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ml\2%07  
if(data[j] SortUtil.swap(data,j,j-1); ,,o5hD0V9  
} MbJ|6g99  
} ,bnrVa(I  
} Uh=@8v  
} zM+eb| >cr  
'%\FT-{  
} Ubf@"B  
'3eL^Aq  
选择排序: Z&[_8Y5j  
;f l3'.S[  
package org.rut.util.algorithm.support; 2uy<wJE >  
ocDAg<wo  
import org.rut.util.algorithm.SortUtil; ]46#u=y~3  
k< i#agq  
/** LktH*ePO  
* @author treeroot ccm(r~lhJ  
* @since 2006-2-2 >2[nTfS  
* @version 1.0 Vb$4'K '  
*/ A[6D40o  
public class SelectionSort implements SortUtil.Sort { R!2oj_  
W v4o:_}  
/* ]UFbG40Zo  
* (non-Javadoc) WO<a^g {  
* SdM@7%UK  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 6-!U\R2Z>  
*/ Z(0sMOaX  
public void sort(int[] data) { GiGXV @dq  
int temp; zEN3N n.8  
for (int i = 0; i < data.length; i++) { w(-h!d51+  
int lowIndex = i; 1Bhd-  
for (int j = data.length - 1; j > i; j--) { q[Ed6FM$~  
if (data[j] < data[lowIndex]) { c3]X#Qa#m$  
lowIndex = j; I {&8iUN  
} WPbG3FrL!  
} _oBJ'8R\  
SortUtil.swap(data,i,lowIndex); \Uh$%#}.  
} GO<,zOqvU  
} "B"Yfg[  
( {}Z '  
} *%;+3SV  
RwyRPc _  
Shell排序: l:$i}.C  
TOC2[m c'  
package org.rut.util.algorithm.support; ~&\}qz3  
f&ri=VJY\T  
import org.rut.util.algorithm.SortUtil; U2TR>0l  
 VsR8|Hn$  
/** L^><APlX  
* @author treeroot I2G:jMPy  
* @since 2006-2-2 4te QG  
* @version 1.0 bWEti}kW  
*/ ;I@@PUnR  
public class ShellSort implements SortUtil.Sort{ RP|/rd]-k  
\#O}K  
/* (non-Javadoc) guc[du  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [ :*Jn}  
*/ 8AgKK=C =  
public void sort(int[] data) { kD.KZV  
for(int i=data.length/2;i>2;i/=2){ bDq[j8IT6  
for(int j=0;j insertSort(data,j,i); bxR6@  
} BfOQ/k))  
} PTZ/j g@71  
insertSort(data,0,1); Z?"f#  
} 'PK;Fg\  
|'ML )`c[  
/** 7ea<2va,  
* @param data \:vHB!2E  
* @param j @eOD+h'  
* @param i ) u Sg;B4  
*/ q"C(`S.@  
private void insertSort(int[] data, int start, int inc) { |18h p  
int temp; 9qcA+gz:|  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); gR\-%<42  
} nEgDwJ<wl  
} %TUvH>;0  
} M|DVFC  
^]{m*bEkR  
} l+HF+v$  
mMSQW6~j  
快速排序: <g3)!VR^q  
C(@#I7G  
package org.rut.util.algorithm.support; mJN*DP{  
H.=S08c3kA  
import org.rut.util.algorithm.SortUtil; g*]/HS>e<G  
6)j4-  
/** {@YY8SKb9  
* @author treeroot 'h.:-1# L  
* @since 2006-2-2 m(DJ6CSa  
* @version 1.0 B3C%**~:e  
*/ /; {E}`  
public class QuickSort implements SortUtil.Sort{ sDXD>upO  
vnr{Ekg  
/* (non-Javadoc) 9Q /t+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qr<RMs  
*/ kVeR{i<*(  
public void sort(int[] data) { jRGslak;  
quickSort(data,0,data.length-1); 734f &2  
} 0s'h2={iI  
private void quickSort(int[] data,int i,int j){ bpgvLZb>s  
int pivotIndex=(i+j)/2; z}z 6Vg  
file://swap T0TgV  
SortUtil.swap(data,pivotIndex,j); ($or@lfs  
=9yh<'583  
int k=partition(data,i-1,j,data[j]); T j(MIFi|5  
SortUtil.swap(data,k,j); Z`]r)z%f  
if((k-i)>1) quickSort(data,i,k-1); ms%RNxU4:  
if((j-k)>1) quickSort(data,k+1,j); hteAuz4H  
4}xw&x  
} 2&o jQhe  
/** I6-.;)McO  
* @param data v1O1-aM  
* @param i >K;DBy*  
* @param j =IH~:D\&  
* @return o|G[/o2  
*/ XDQ5qfE|  
private int partition(int[] data, int l, int r,int pivot) { c$P68$FB  
do{ A}3dx!?7j  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); l' mdj!{&  
SortUtil.swap(data,l,r); YM r2|VEU[  
}  ,7h0y  
while(l SortUtil.swap(data,l,r); "zZ Z h  
return l; bGtS! 'I  
} 6Q*Zy[=  
Y!qn[,q8  
} Kg6[  
Mj<T+Ohz  
改进后的快速排序: 67b w[#v  
f Hd|tl  
package org.rut.util.algorithm.support; z;Jz^m-  
/N9ct4 {^  
import org.rut.util.algorithm.SortUtil; 7z;X@+O}s  
3ZUME\U  
/** q,m+W='  
* @author treeroot v8l3{qq  
* @since 2006-2-2 =JNCQu  
* @version 1.0 LE}V{%)xD  
*/ h<<uef9  
public class ImprovedQuickSort implements SortUtil.Sort { '4ip~>3?w  
.L@gq/x)  
private static int MAX_STACK_SIZE=4096; #1De#uZ  
private static int THRESHOLD=10; giYlLJA*}  
/* (non-Javadoc) r t0_[i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) l=PZlH y1G  
*/ Mj6 0?k  
public void sort(int[] data) { MAQ(PIc>T  
int[] stack=new int[MAX_STACK_SIZE]; JnIE6@g<y  
`n?Rxhkwp  
int top=-1; dt||nF  
int pivot; hN^,'O  
int pivotIndex,l,r; .]w=+~h  
K1$   
stack[++top]=0; F}~qTF;H  
stack[++top]=data.length-1; Bwl@Muw  
6UKZ0~R  
while(top>0){ Jo''yrJpB  
int j=stack[top--]; Ji4JP0  
int i=stack[top--]; 8I[=iU7]l  
f]48-X,^6  
pivotIndex=(i+j)/2; 43?uTnX/  
pivot=data[pivotIndex]; M;LR$'cP  
@1N .;]|  
SortUtil.swap(data,pivotIndex,j); =}g-N)^  
mg]t)+PQ  
file://partition i_(6} Y&  
l=i-1; |=js!R|  
r=j; HtV8=.^  
do{ N 9W,p 2  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); fSVb.MZa7  
SortUtil.swap(data,l,r); _9C,N2a{C  
} B~B,L*kC2  
while(l SortUtil.swap(data,l,r); 0b G#'.-  
SortUtil.swap(data,l,j); 8b!xMFF"  
}jg 1..)"<  
if((l-i)>THRESHOLD){ N*+L'bO  
stack[++top]=i; OcLahz6  
stack[++top]=l-1; )G),iy  
} JNv@MJb}  
if((j-l)>THRESHOLD){ "`NAg  
stack[++top]=l+1; ]P/i}R:  
stack[++top]=j; #>M^BOR8  
} K7X*N  
)FN\jo!!.  
} z HT#bP:o  
file://new InsertSort().sort(data); #/> a`Ur_  
insertSort(data); wk#cJ`wG;  
} lK_T%1Gz  
/** :%_h'9Qq  
* @param data Vi`P &uPF  
*/ KM"BHaSkF  
private void insertSort(int[] data) { 2HO2  
int temp; [y~kF?a  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); d uP0US  
} NvC @  
} $zM \Jd  
} (&SPMhs_|(  
RzU9]e  
} : { iK 5  
zZ,"HY=jN  
归并排序: _Q'f^Kj  
0avtfQ +f  
package org.rut.util.algorithm.support; w75Ro6y  
10Q!-K),p  
import org.rut.util.algorithm.SortUtil; uFA}w:Fm  
>0_{80bdO  
/** Oyb0t|do+  
* @author treeroot =ld!=II  
* @since 2006-2-2 `A9fanh  
* @version 1.0 *{,}pK2*  
*/ X .sOZb?$  
public class MergeSort implements SortUtil.Sort{ g&{CEfw&  
SAiaC _  
/* (non-Javadoc) =YIosmr  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) R xS{  
*/ W[sQ_Z1C  
public void sort(int[] data) { z%BX^b$Hj  
int[] temp=new int[data.length]; E@EP9X >  
mergeSort(data,temp,0,data.length-1); -24ccN;  
} M3Qi]jO98  
I@5$<SN  
private void mergeSort(int[] data,int[] temp,int l,int r){ YC$>D? FW  
int mid=(l+r)/2; K4 -_a{)/  
if(l==r) return ; (|#%omLL  
mergeSort(data,temp,l,mid); MV w.Fl  
mergeSort(data,temp,mid+1,r); R13V }yL  
for(int i=l;i<=r;i++){ U&43/;<,  
temp=data; X"vDFE`?  
} 5 `@yX[G  
int i1=l; 3,EtyJ3[Bh  
int i2=mid+1; n a*Z0y  
for(int cur=l;cur<=r;cur++){ \TYVAt] ?  
if(i1==mid+1) _DAqL@5n  
data[cur]=temp[i2++]; 1;PI%++  
else if(i2>r) 97 ,Yq3  
data[cur]=temp[i1++]; -?l`LbD  
else if(temp[i1] data[cur]=temp[i1++]; @-Y,9mM   
else }u8g7Nj  
data[cur]=temp[i2++]; @REMl~"D5  
} 5(GVwv  
} :;c`qO4  
2a;[2':  
} W7;RQ  
'v@*xF/L6a  
改进后的归并排序: YI;MS:Qj  
`4?|yp.|L  
package org.rut.util.algorithm.support; >3*a&_cI=k  
=f23lA  
import org.rut.util.algorithm.SortUtil; JNT|h zV  
F@HJ3O9  
/** |tU wlc>  
* @author treeroot w+Gav4  
* @since 2006-2-2 2R ^6L@fw  
* @version 1.0 0|i|z !N>  
*/ _T7XCXEk   
public class ImprovedMergeSort implements SortUtil.Sort { }346uF7C  
UkXa mGoy3  
private static final int THRESHOLD = 10; e+<|  
]826kpq_  
/* j<6+p r  
* (non-Javadoc) F>5b[q6~4  
* g[HuIn/  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) J qmL|S)  
*/ ggrkj0  
public void sort(int[] data) { lIZ&' z  
int[] temp=new int[data.length]; Jl6lZd(Np  
mergeSort(data,temp,0,data.length-1); dt>9mF q  
} ^w&!}f+  
TA8  
private void mergeSort(int[] data, int[] temp, int l, int r) { O OXP1L  
int i, j, k; -%Ce  
int mid = (l + r) / 2; +G\i$d;St  
if (l == r) |f\WVGH  
return; KV-h~C  
if ((mid - l) >= THRESHOLD) 4#.Q|vyl]"  
mergeSort(data, temp, l, mid); ^N7 C/" p  
else *=!r|UdB.  
insertSort(data, l, mid - l + 1); 2aX{r/Lc  
if ((r - mid) > THRESHOLD) )=bW\=[8  
mergeSort(data, temp, mid + 1, r);  (^B=>  
else ?>I  
insertSort(data, mid + 1, r - mid); V6h8+|hK  
ks %arm&  
for (i = l; i <= mid; i++) { r:Q=6j,  
temp = data; -3y  
} V#+F*w?&D  
for (j = 1; j <= r - mid; j++) { VS!v7-_N5  
temp[r - j + 1] = data[j + mid]; I~Qi):&x  
} c4r9k-w0E  
int a = temp[l]; 1~},}S]id  
int b = temp[r]; OF )*kiJ  
for (i = l, j = r, k = l; k <= r; k++) { [Q\(k d*4  
if (a < b) { 3xmPY.  
data[k] = temp[i++]; `I4E': ZG  
a = temp; F~hH>BH9  
} else { *cCj*Zr]  
data[k] = temp[j--]; kY6_n4  
b = temp[j]; 'cAS>s"$}V  
} ;j[:tt\k  
} 9'e<{mlM  
} s?&S<k-=fr  
B/^o$i  
/** :Bu)cy#/[  
* @param data sY?wQ:  
* @param l rx@i .+  
* @param i ZG{#CC=  
*/ O3%#Q3c>3  
private void insertSort(int[] data, int start, int len) { fZLAZMrM  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 8<32(D{  
} E1`_[=8a9  
} !&`\MD>;~R  
} e**'[3Y  
} *65~qAd  
z]LVq k  
堆排序: 0I do_V  
`2^(Ss# )  
package org.rut.util.algorithm.support; 83p8:C.Ze  
F1L[C4'  
import org.rut.util.algorithm.SortUtil; N3a ]!4Y\  
)K`tnb.Pf  
/** Ly R<cd$W  
* @author treeroot y\[* mgl:  
* @since 2006-2-2 ,2i1 4H  
* @version 1.0 Tj\hAcD  
*/ Fg}t{e]3a  
public class HeapSort implements SortUtil.Sort{ ]scr@e  
'A\0^EvVv  
/* (non-Javadoc) O*B9 Bah  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) J4z&J SY  
*/ Dkh=(+> <  
public void sort(int[] data) { x9 n(3Oa  
MaxHeap h=new MaxHeap(); - DYH>!  
h.init(data); vQy<%[QO  
for(int i=0;i h.remove(); tw.z5  
System.arraycopy(h.queue,1,data,0,data.length); >IA1 \?(  
} @+)T"5_Y[  
]1|7V|N6  
private static class MaxHeap{ \q24E3zS&  
tK'9%yA\  
void init(int[] data){ qSD3]Dv"  
this.queue=new int[data.length+1]; B<$6Dj%L  
for(int i=0;i queue[++size]=data; -%K}~4J  
fixUp(size); &%k_BdlkQ  
} St> E\tXp  
} Goy[P2m  
R yM2 9uD  
private int size=0; IjQgmS~G  
FL&Y/5  
private int[] queue; =^l`c$G<  
hhI*2|i"L  
public int get() { Gl6:2  
return queue[1]; ]"YXa~b  
} w{;~  
|lu@rN  
public void remove() { =}u?1~V  
SortUtil.swap(queue,1,size--); i .eMrzJ|  
fixDown(1); O'.{6H;t  
} S&k/Pc  
file://fixdown oYJ<.Yxeb  
private void fixDown(int k) { </SO#g^r<  
int j; kE!ky\E  
while ((j = k << 1) <= size) { +%~me?  
if (j < size %26amp;%26amp; queue[j] j++; sEZ2DnDI  
if (queue[k]>queue[j]) file://不用交换 |?MD>Pez  
break; A@4{-e\  
SortUtil.swap(queue,j,k); JRE\R&>g  
k = j; nr( C*E  
} -~H "zu`  
} ymnK`/J!Q  
private void fixUp(int k) { FP0GE  
while (k > 1) { g:p` .KuB  
int j = k >> 1; +JXn   
if (queue[j]>queue[k]) A_2lG!! 6  
break; v;}MHl  
SortUtil.swap(queue,j,k); CP$,fj  
k = j; ~3-+~y=o~  
} ?[WUix;  
} -yu$Mm  
k)8*d{*  
} Yfs eX;VX  
)|5mW  
} D4$"02"  
WU.eeiX  
SortUtil: l <Z7bo  
M-F{I%Vx  
package org.rut.util.algorithm; KF!d?  
iV\*7  
import org.rut.util.algorithm.support.BubbleSort; L}A2$@  
import org.rut.util.algorithm.support.HeapSort; -$@'@U  
import org.rut.util.algorithm.support.ImprovedMergeSort; hQNUA|Q=%  
import org.rut.util.algorithm.support.ImprovedQuickSort; +apn3\_  
import org.rut.util.algorithm.support.InsertSort; :3J`+V}9;  
import org.rut.util.algorithm.support.MergeSort; rsw= a_S  
import org.rut.util.algorithm.support.QuickSort; x8wsx F  
import org.rut.util.algorithm.support.SelectionSort; w^7[4u4  
import org.rut.util.algorithm.support.ShellSort; X76rme  
_6]CT0  
/** - &)  
* @author treeroot ,zJ:a>v  
* @since 2006-2-2 -b?s\X  
* @version 1.0 hQvI}  
*/ V{\1qg{  
public class SortUtil { T$;BZ=_  
public final static int INSERT = 1; M~Er6Zg  
public final static int BUBBLE = 2; }wJH@'0+  
public final static int SELECTION = 3; 0wF)bQv1  
public final static int SHELL = 4; GW7+#  
public final static int QUICK = 5; X]\; f  
public final static int IMPROVED_QUICK = 6; E% Ko[G  
public final static int MERGE = 7; fj9&J[  
public final static int IMPROVED_MERGE = 8; bz [?M}  
public final static int HEAP = 9; BgB0   
[g=4'4EZc  
public static void sort(int[] data) { 8M BY3F  
sort(data, IMPROVED_QUICK); wARd^Iw  
} Kv#Q$$)r  
private static String[] name={ `nc=@" 1  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 5B3sRF}  
}; :SZi4:4-J8  
i.FdZN{  
private static Sort[] impl=new Sort[]{ xsvJjs;=  
new InsertSort(), V,?])=Ax  
new BubbleSort(), DV*e.Y>  
new SelectionSort(), y`7b3*P  
new ShellSort(), -afNiNiY  
new QuickSort(), q!Z{qt*`um  
new ImprovedQuickSort(), u_o] \D~  
new MergeSort(), L/5th}m  
new ImprovedMergeSort(), uNqN &7g  
new HeapSort() BXytAz3  
}; /NuO>kQa  
k? ,/om1  
public static String toString(int algorithm){ U_UN& /f  
return name[algorithm-1]; Ksk[sf?J&  
} [3x*47o"z  
20:![/7:!  
public static void sort(int[] data, int algorithm) { <" 0b 8 Z  
impl[algorithm-1].sort(data); P#rS.CIh  
} X'xnJtk  
QVl"l'e8  
public static interface Sort { _!?a9  
public void sort(int[] data); iWkC: fQz  
} '+*'sQvH[  
x}{O9LiR  
public static void swap(int[] data, int i, int j) { sy6[%8D$  
int temp = data; 2cZgG^  
data = data[j]; ajf(Ii\/  
data[j] = temp; Pv*]AF;9pQ  
} O6">Io5  
} :1v.Jk  
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
批量上传需要先选择文件,再选择上传
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八