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
  • 7677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。 oIM]  
插入排序: hsQrHs'k  
[-sE:O`yt  
package org.rut.util.algorithm.support; nD+vMG1~w  
;6} *0V_!k  
import org.rut.util.algorithm.SortUtil; |j i}LWcD  
/** G'z&U?Ng  
* @author treeroot 8P3EQY -  
* @since 2006-2-2 d*lnXzQor  
* @version 1.0 <oS k!6*  
*/ R?Q@)POW  
public class InsertSort implements SortUtil.Sort{ +*Cg2`  
8<t?o'9I  
/* (non-Javadoc) <&o `T4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .O'gD.|^N  
*/ <)]B$~(a  
public void sort(int[] data) { m//(1hWv7  
int temp; VB 8t"5  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); +6!.)Ea=  
} e3wFi,/@  
} )G6]r$M>o0  
} -9U'yL90B  
m)q;eQs  
} @Ey(0BxNu  
MWCP/~>a2  
冒泡排序: C<6IiF[>%  
3Nh;^  
package org.rut.util.algorithm.support; 0rT-8iJp4P  
flLC\   
import org.rut.util.algorithm.SortUtil; J680|\ER  
cmu5KeH  
/** ~ S R:,R  
* @author treeroot XQk9 U  
* @since 2006-2-2 0X)'8N  
* @version 1.0 %+G/oF |  
*/ hSD)|  
public class BubbleSort implements SortUtil.Sort{  { Lt \4h  
fj 19U9R  
/* (non-Javadoc) r&\}E+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +gOCl*L  
*/ *kxk@(lT?  
public void sort(int[] data) { 6yF4%Sz9  
int temp; "_C^Bc  
for(int i=0;i for(int j=data.length-1;j>i;j--){ =?57*=]0M  
if(data[j] SortUtil.swap(data,j,j-1); >;QkV6i7  
} -)?~5Z   
} u9>.x zYG  
} "wxs  
} 9r7QE&.  
D|Z,eench  
} vdNh25a<h  
HF5aU:M  
选择排序: RH. oo&  
mYb8   
package org.rut.util.algorithm.support; ^$_a_ft#  
e9q/[xMi  
import org.rut.util.algorithm.SortUtil; iYv6B6o/99  
P7 E}^y`e  
/** [(`T*c.#.X  
* @author treeroot d?&?$qf[  
* @since 2006-2-2 q!<`ci,uS  
* @version 1.0 R6)p4#|i  
*/ _q=$L eO5  
public class SelectionSort implements SortUtil.Sort { c?eV8h1G  
\GbT^!dj  
/* m{x!uq  
* (non-Javadoc) uwWfL32  
* .Kq>/6  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) i2$U##-ro]  
*/ d Z"bc]z{  
public void sort(int[] data) { dp2".  
int temp; bK("8T\?  
for (int i = 0; i < data.length; i++) { S53 [Ja  
int lowIndex = i; 7esG$sVj(  
for (int j = data.length - 1; j > i; j--) { tZU"Ud  
if (data[j] < data[lowIndex]) { A@_F ;4X  
lowIndex = j; "`,PLC  
} S,3e|-&$  
} ^$_ifkkLz  
SortUtil.swap(data,i,lowIndex); +]CKu$,8  
} IVkKmO(qO  
} eJ%~6c`@!  
r em&F'x0V  
} *u7C){)gr[  
p0$K.f| ^  
Shell排序: B {/Pv0y   
\9i.dF  
package org.rut.util.algorithm.support; klUxt?-  
!U,qr0h  
import org.rut.util.algorithm.SortUtil; q&Q* gEFK  
9|Jmj @9  
/** b3EW"^Ar  
* @author treeroot xv 7^  
* @since 2006-2-2 YIfPE{,  
* @version 1.0 CHWyy  
*/ G+b$WQn2t  
public class ShellSort implements SortUtil.Sort{ @'R4zJ&+S  
Y: KB"H  
/* (non-Javadoc) 4m#i4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) < 5[wP)K@  
*/ =[t([DG  
public void sort(int[] data) { )Ah  
for(int i=data.length/2;i>2;i/=2){ :'Imz   
for(int j=0;j insertSort(data,j,i); lEZ[0oa  
} RURO0`^  
} P!B\:B%4~]  
insertSort(data,0,1); zi[bpa17W  
} >eAlz 4  
LD_aJ^(d  
/** A0O$B7ylQ  
* @param data V[+ Pb]  
* @param j Qh/yPOSm:  
* @param i in#qV  
*/ N.xmHvPk  
private void insertSort(int[] data, int start, int inc) { kc|`VB8L  
int temp; n?Gm 5##  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); x gaN0!  
} !pw%l4]/t  
} "@GopD  
} ^o:0 Y}v=  
*M+:GH/5  
} 8xg:ItJaA0  
)5d&K8@  
快速排序: +*)B;)P  
)V)4N[?GC  
package org.rut.util.algorithm.support; Q`AJR$L  
,O 3"r;  
import org.rut.util.algorithm.SortUtil; #hR}7K+@  
A>7'W\R  
/** pK *-In  
* @author treeroot RJF1~9  
* @since 2006-2-2 ,UWO+B]  
* @version 1.0 EW#.)@-  
*/ 9N=Dls  
public class QuickSort implements SortUtil.Sort{ X_Y$-I$qd  
,!%[CpM3  
/* (non-Javadoc) $3Wl~ G}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a/L?R Uu  
*/ ?@_3B]Fs  
public void sort(int[] data) { 39"8Nq|e  
quickSort(data,0,data.length-1); \+Qx}bS{  
} j*W]^uT,  
private void quickSort(int[] data,int i,int j){ 5>}L3r>a;  
int pivotIndex=(i+j)/2; {U^mL6=&v  
file://swap <diI*H<G  
SortUtil.swap(data,pivotIndex,j); 1#]tCi`  
y7d)[d*Mz  
int k=partition(data,i-1,j,data[j]); 4y 582u6^  
SortUtil.swap(data,k,j); dHf_&X2A  
if((k-i)>1) quickSort(data,i,k-1); vWe)cJ  
if((j-k)>1) quickSort(data,k+1,j); 8EbYk2j  
_~Lhc'^p*  
} s}`=pk/FM  
/** V%e'H>EC  
* @param data YaSwn3i/@S  
* @param i v[m/>l2[P  
* @param j ZwO&G\A^  
* @return Lk#u^|Eq7=  
*/ S 5m1~fz  
private int partition(int[] data, int l, int r,int pivot) { u"pn'H  
do{  `9S<E  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); vhWj_\m  
SortUtil.swap(data,l,r); I+`~6  
} Cd|V<BB9  
while(l SortUtil.swap(data,l,r); v{?9PRf\s  
return l; z?j~ 2K<4  
} I|Z5*iXqCm  
fB  
} @f*/V e0.  
"~d)$]+  
改进后的快速排序: Sm+Ek@Ax  
lmr {Ib2a  
package org.rut.util.algorithm.support; Y&'2/zI6~  
Q9%N>h9  
import org.rut.util.algorithm.SortUtil; VD36ce9  
]>R`]U9*O  
/** ^!pagt^  
* @author treeroot 'f;+*~*L  
* @since 2006-2-2 wF@qBDxg  
* @version 1.0 d+2I+O03  
*/ [.Kia >  
public class ImprovedQuickSort implements SortUtil.Sort { iOki ZN+d>  
QdC>fy  
private static int MAX_STACK_SIZE=4096; r(cS{oni  
private static int THRESHOLD=10; PJA 1/"  
/* (non-Javadoc) c/T]=S[  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Z33w A?9  
*/ ?F?!QrL  
public void sort(int[] data) { ua4QtDSs  
int[] stack=new int[MAX_STACK_SIZE]; "28x-F+J  
G _42ckLq  
int top=-1; 2+"#  
int pivot; @*%5"~F  
int pivotIndex,l,r; @zd)]O]xH?  
*e_ /D$SC  
stack[++top]=0; <]CO}r   
stack[++top]=data.length-1; tQ?? nI2  
oB_{xu$6|  
while(top>0){ Q6.},o  
int j=stack[top--]; \8_&@uLm  
int i=stack[top--]; L2Gm0 v  
~73YOGiGJH  
pivotIndex=(i+j)/2; '^7Sa  
pivot=data[pivotIndex]; }p8a'3@Z  
(U$ F) 7  
SortUtil.swap(data,pivotIndex,j); =UTv  
*(o~pxFTR  
file://partition \:-; {  
l=i-1; _5.7HEw>/  
r=j; 1S.nqOfx  
do{ 8@b@y|#]X  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); J tYnBg?[E  
SortUtil.swap(data,l,r); s|EP/=9i  
} D_@r_^}  
while(l SortUtil.swap(data,l,r); q'K=Ly+  
SortUtil.swap(data,l,j); r%_)7Wk*  
ZZl)p\r  
if((l-i)>THRESHOLD){ eT}c_h)  
stack[++top]=i; JRU)AMMU&  
stack[++top]=l-1; q ,}W.  
} Nv #vfh9}P  
if((j-l)>THRESHOLD){ 6PvV X*5T  
stack[++top]=l+1; c(YNv4*X  
stack[++top]=j; ,VJ0J!@  
} =$b^ X?x  
Sfh\4h$H  
} &:'Uh W-t  
file://new InsertSort().sort(data); \ J9@p  
insertSort(data); oEKLuy  
} sbkWJy  
/** &*MwKr<y  
* @param data a#j0N5<Nl  
*/ #p=/P{*  
private void insertSort(int[] data) { %Vive2j C  
int temp; %3z-^#B=  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); zy+|)^E  
} 4HkOg)a  
} f&{2G2 O%  
} sl/#1B   
pjHUlQ   
} .rN 5A+By`  
g-Z>1V  
归并排序: 0[9A*  
":eHR}Hzx  
package org.rut.util.algorithm.support; XY0Gjo0  
$]xe,}*Af  
import org.rut.util.algorithm.SortUtil; MH!'g7iK8  
d;;]+%  
/** R2t5T-8`c  
* @author treeroot rf]]I#C7  
* @since 2006-2-2 oD~VK,.  
* @version 1.0 >,32~C  
*/ 3Yg/-=U(  
public class MergeSort implements SortUtil.Sort{ ^aXyho  
F!'b_ gmz  
/* (non-Javadoc) KQQR"[z&V  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1 ljgq]($  
*/ HtmJIH:  
public void sort(int[] data) { oACuI|b  
int[] temp=new int[data.length]; JBi<TDm/  
mergeSort(data,temp,0,data.length-1); ,$W7Q  
} )Hl;9  
 SvDVxK  
private void mergeSort(int[] data,int[] temp,int l,int r){ K~v"%sG{`  
int mid=(l+r)/2; *4]I#N  
if(l==r) return ; EV2whs2g  
mergeSort(data,temp,l,mid); *9?-JBT&F  
mergeSort(data,temp,mid+1,r); ~~:i+-[  
for(int i=l;i<=r;i++){ G~u94rw|:  
temp=data; 4J-)+C/edx  
} K^s!0[6  
int i1=l; ']A+wGR&r  
int i2=mid+1; }&`#  
for(int cur=l;cur<=r;cur++){ {$O.@#'  
if(i1==mid+1) 3EF|1B/5  
data[cur]=temp[i2++]; /`}C~  
else if(i2>r) M,q'   
data[cur]=temp[i1++]; }|{yd03 +  
else if(temp[i1] data[cur]=temp[i1++]; Uhb6{'+  
else Z"% =  
data[cur]=temp[i2++]; s 6vsV  
} KuE 2a,E4  
} "fr B5[  
VA4_>6  
} H:y.7  
?<xGO@b .  
改进后的归并排序: L;E9"7Jo  
[ ecYpE<  
package org.rut.util.algorithm.support; Bb8lklQ  
p24sWDf  
import org.rut.util.algorithm.SortUtil; b!<?,S  
m0XK?;\V  
/** B.Ic8'  
* @author treeroot c,X\1yLy  
* @since 2006-2-2 `m@06Q  
* @version 1.0 yhgHwES"  
*/ ~\:+y  
public class ImprovedMergeSort implements SortUtil.Sort { HrEZ]iQ@O0  
hY/SR'8  
private static final int THRESHOLD = 10; 7PHvsd"]p  
2syKYHV  
/* Ny p5=  
* (non-Javadoc) ;:8_H0X'K  
* 'hf-)\Ylf  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) yi r#G""7  
*/ r3_@ L>;  
public void sort(int[] data) { lNls8@  
int[] temp=new int[data.length]; L ?4c8!Q  
mergeSort(data,temp,0,data.length-1); _"##p  
} gWv/3hWWB  
}qi6K-,oU  
private void mergeSort(int[] data, int[] temp, int l, int r) { >77 /e@  
int i, j, k; u23^* -  
int mid = (l + r) / 2; 6>SP5|GG  
if (l == r) lmQ!q>N  
return;   VG q'  
if ((mid - l) >= THRESHOLD) y<8)mw  
mergeSort(data, temp, l, mid); R%8nR6iG"  
else 9I+;waLlB  
insertSort(data, l, mid - l + 1); - :*PXu  
if ((r - mid) > THRESHOLD) i1\xZ<|0  
mergeSort(data, temp, mid + 1, r); |Tf}8e  
else Yf7n0Etd,  
insertSort(data, mid + 1, r - mid); =36vsps=  
| z$ba:u5  
for (i = l; i <= mid; i++) { 9%> H}7=  
temp = data; &}YB!6k h^  
} 6./h0kD`  
for (j = 1; j <= r - mid; j++) { ShF ][v1L  
temp[r - j + 1] = data[j + mid]; vA;ml$  
} !ck=\3pr  
int a = temp[l]; Y}(v[QGV  
int b = temp[r]; 6V*@ {  
for (i = l, j = r, k = l; k <= r; k++) { 4US8B=jk  
if (a < b) { V0c*M>V  
data[k] = temp[i++]; 3)EslBA7i  
a = temp; &CCB;Oi%  
} else { CNM/}|N^Si  
data[k] = temp[j--]; T{{J' _s5L  
b = temp[j]; }i|o":-x+  
} H.v`JNs (  
} Cdot l$'  
} _ZC4O&fL  
D0~WK stl  
/** ?b^VEp.;}  
* @param data t`Mm  
* @param l TB*g$ *  
* @param i 1CFrV=d  
*/ toX4kmC  
private void insertSort(int[] data, int start, int len) { l/DV ?27  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); s7D_fv4e  
} 0F0V JE  
} 8Rc4+g  
} FWq 6e,  
} iG6 ^s62z7  
DTl M}  
堆排序: }8fxCW*|  
N@58R9P<p  
package org.rut.util.algorithm.support; `IFt;Ja\6  
v}+axu/?  
import org.rut.util.algorithm.SortUtil; ](x4q  
G5kM0vs6L  
/** R^f~aLl  
* @author treeroot nw Or  
* @since 2006-2-2 <E&1HeP  
* @version 1.0 Iwize,J~X  
*/ 9K Ih}Q@P  
public class HeapSort implements SortUtil.Sort{ pvDr&n9  
HJ !)D~M{  
/* (non-Javadoc) zVGjXuNa  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 42Tjbten_u  
*/ zi:GvTG  
public void sort(int[] data) { /49PF:$?  
MaxHeap h=new MaxHeap(); r*0a43mC1  
h.init(data); U@ALo  
for(int i=0;i h.remove(); `(_cR@\  
System.arraycopy(h.queue,1,data,0,data.length); &:S_ewJK7  
} N+"Y@X yg  
"5synfO  
private static class MaxHeap{ {5#P1jlT  
F,11 \j  
void init(int[] data){ tURIDj%#p  
this.queue=new int[data.length+1]; ( X)$8y  
for(int i=0;i queue[++size]=data; 9bMM-~  
fixUp(size);  !|9$  
} (W5E\hjJ  
} 5#80`/w^U  
jMzHs*:  
private int size=0; qaA\.h7  
ig")bt3s5  
private int[] queue; })M$#%(  
|n}W^}S5  
public int get() { !_?<-f(  
return queue[1]; $P866F  
} 7B"J x^  
0`h[|FYV  
public void remove() { KQJn\#>  
SortUtil.swap(queue,1,size--); h$f/NSct2  
fixDown(1); nxsQDw\hy  
} SV<*qz  
file://fixdown >tr_Ypfv,c  
private void fixDown(int k) { ;}A#ws_CD_  
int j; CbQ@l@d]  
while ((j = k << 1) <= size) { PUltn}M  
if (j < size %26amp;%26amp; queue[j] j++; eG"iJ%I  
if (queue[k]>queue[j]) file://不用交换 8!VjXj"  
break; s|pb0  
SortUtil.swap(queue,j,k); H'q&1^w)  
k = j; `RthX\Tof  
} ;wL *  
} _xl#1>G^J  
private void fixUp(int k) { $- =aqUU  
while (k > 1) { {;n?c$r  
int j = k >> 1; fX[,yc;  
if (queue[j]>queue[k]) >:W)9o  
break; i_`YZ7Hxp  
SortUtil.swap(queue,j,k); #7lkj:j4  
k = j; thipfS  
} +A~lPXAXW  
} g#9w5Q  
XhWMvme  
} sx*1D9s_  
Kzo{L  
} $rFv(Qc^=  
"'t<R}t!A  
SortUtil: +FY-r[_~  
"*+epC|ks  
package org.rut.util.algorithm; Ct}"o  
<Cg;l<$`b  
import org.rut.util.algorithm.support.BubbleSort; GVn9=[r  
import org.rut.util.algorithm.support.HeapSort; _9!Ru!u~  
import org.rut.util.algorithm.support.ImprovedMergeSort; RVI],O  
import org.rut.util.algorithm.support.ImprovedQuickSort; ,yV pB)IQ  
import org.rut.util.algorithm.support.InsertSort; qhK;#<#  
import org.rut.util.algorithm.support.MergeSort; "MoV*U2s,  
import org.rut.util.algorithm.support.QuickSort; 5Hr(9)  
import org.rut.util.algorithm.support.SelectionSort; JGj_{|=:  
import org.rut.util.algorithm.support.ShellSort; /R|"/B0  
}Lb];hww1  
/** YQQ!1 hw  
* @author treeroot wTIf#y1=9  
* @since 2006-2-2 zE<vFP-1v  
* @version 1.0 yA%[ u.{  
*/ }ZVNDvGH  
public class SortUtil { ?a}eRA7  
public final static int INSERT = 1; cLR8U1k'  
public final static int BUBBLE = 2; Xo%Anqk  
public final static int SELECTION = 3; XJ?@l3D:  
public final static int SHELL = 4; }PED#Uv  
public final static int QUICK = 5; Y Nq<%i!>  
public final static int IMPROVED_QUICK = 6; PU -~7h+$  
public final static int MERGE = 7; 0 |F (qR  
public final static int IMPROVED_MERGE = 8; ioa 1n=j  
public final static int HEAP = 9; zEO 9TuBO  
#(  kT  
public static void sort(int[] data) { oK(ua  
sort(data, IMPROVED_QUICK); kY_UY~E  
} }DZkCzK  
private static String[] name={ ^xqh!  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" xPb`CY7  
}; W]M[5p]*  
8i:b~y0  
private static Sort[] impl=new Sort[]{ VJ=!0v  
new InsertSort(), IgFz[)  
new BubbleSort(), 9R ugkGy  
new SelectionSort(), Z>M*!mQi  
new ShellSort(), q5HHMHB  
new QuickSort(), OmoY] 8N}  
new ImprovedQuickSort(), Q'A->I<;_s  
new MergeSort(), [,1j(s`N5  
new ImprovedMergeSort(), K} ;uH,  
new HeapSort() ait/|a  
}; QkF-}P%  
eGguq~s`  
public static String toString(int algorithm){ JT_#>',  
return name[algorithm-1]; P AKh v.7  
} }>0UaK  
\lY26'  
public static void sort(int[] data, int algorithm) { w6wXe_N+M  
impl[algorithm-1].sort(data); 4p1{Ady  
} @NyCMe;]  
[n:R]|^a  
public static interface Sort { E3gQ`+wNg?  
public void sort(int[] data); `mWg$e,  
} 9]7^/g*!  
vkt)!hl `  
public static void swap(int[] data, int i, int j) { q g%<>B&"  
int temp = data; tGf  
data = data[j]; :^ cA\2=  
data[j] = temp; %*s[s0$c  
} \}<nXn!  
} zF{ z_c#3@  
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
如果您提交过一次失败了,可以用”恢复数据”来恢复帖子内容
认证码:
验证问题:
10+5=?,请输入中文答案:十五