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
  • 7198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。 \-s'H:  
插入排序: \RP=Gf  
Eh;~y*k\  
package org.rut.util.algorithm.support; xZ"kJ'C4}  
].w$b)G   
import org.rut.util.algorithm.SortUtil; jZY9Lx8o  
/** cXokq  
* @author treeroot esEOV$s}  
* @since 2006-2-2 0g(hY:  
* @version 1.0 ?3i-wpzMp  
*/ V/!8q`lYNJ  
public class InsertSort implements SortUtil.Sort{ I-q@@! =  
Ts:pk  
/* (non-Javadoc) mE]W#?   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) xH8nn3U  
*/ l>9ZAI\^  
public void sort(int[] data) { [ !:.9  
int temp; 9X{aU)"omQ  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); !$5U\"M  
} P8s'e_t  
} R=M${u<t  
} MgLz:2 :F  
M+^+u 1QQ0  
} yHoj:f$$x  
VL<)d-  
冒泡排序: [OsW   
(#. )~poZ  
package org.rut.util.algorithm.support; nmN6RGx  
'u.`!w '|L  
import org.rut.util.algorithm.SortUtil; B: uW(E  
ZD0Q<8%  
/** ziy~~J  
* @author treeroot GL1!Z3  
* @since 2006-2-2 !/$BXUrd  
* @version 1.0 *pv hkJ g(  
*/ JWrvAM$O  
public class BubbleSort implements SortUtil.Sort{ rReZ$U  
t9x.O  
/* (non-Javadoc) W#0pFofXw  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?P`]^#  
*/ D1lHq/  
public void sort(int[] data) { `&>!a  
int temp; Ybx4 Up@  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ./ib{ @A.  
if(data[j] SortUtil.swap(data,j,j-1); ^yu^Du  
} AC(}cMM+  
} Z!|nc.  
} ;mo}$^49*  
} mrd(\&EhA  
F{f "xM  
} Mp$ uEi  
BbiBtU  
选择排序: m.EWYO0XQ  
9^s sT>&/  
package org.rut.util.algorithm.support; 0  x"3  
@eT!v{o  
import org.rut.util.algorithm.SortUtil; i' |S g  
#\4uu  
/** Jp5~iC2d  
* @author treeroot WFN5&7$W  
* @since 2006-2-2 1/w['d4l!  
* @version 1.0 '1r:z, o|  
*/ [>?B`1;@  
public class SelectionSort implements SortUtil.Sort { tp*AA@~  
+5);"71  
/* HcQ{ok9u  
* (non-Javadoc) UwdcU^xt9  
* c+|,2e 0T  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {My/+{eS!?  
*/ I#S6k%-'  
public void sort(int[] data) { &&(sZG w  
int temp; Ql\{^s+  
for (int i = 0; i < data.length; i++) { -@L*i|A  
int lowIndex = i; ,1F3";`n[  
for (int j = data.length - 1; j > i; j--) { O-bC+vB]M  
if (data[j] < data[lowIndex]) { +l&ZN\@0X  
lowIndex = j; Y@^M U->+  
} k9WihejS  
} PGu6hV{  
SortUtil.swap(data,i,lowIndex); /_w oCLwQ#  
} ,uE WnZ"4  
} {Sd{|R_  
C8@SuJ  
} =1yU& PJ  
w]F(o  
Shell排序: 0sk*A0HX-  
%,-vmqr  
package org.rut.util.algorithm.support; 3MiNJi#=2  
8TC%]SvYim  
import org.rut.util.algorithm.SortUtil; m/%sBw\rx  
86@"BNnTh  
/** Sep}{`u  
* @author treeroot t#}/VnSQ  
* @since 2006-2-2 N~g'Z `  
* @version 1.0 GZ UDI#  
*/ vXRfsv y  
public class ShellSort implements SortUtil.Sort{ x:"_B  
)1Os+0az  
/* (non-Javadoc) ?fc({zb  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) avykg(  
*/ W<u63P  
public void sort(int[] data) { l)HF4#Bs  
for(int i=data.length/2;i>2;i/=2){ I%b, H`  
for(int j=0;j insertSort(data,j,i); m(XcPb  
} %{5mkO&,2  
} oAA%pZ@  
insertSort(data,0,1); RAR"9 N .  
} b qEwi[`  
) #9/vIQ  
/** ZVR0Kzu?Ra  
* @param data IdUMoLL?  
* @param j 0^5SL/2  
* @param i |wKZ-6  
*/ uf^"Y3  
private void insertSort(int[] data, int start, int inc) { / \!hW-+]W  
int temp; Wb68")$  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); k6QQoLb$V  
} o2@8w[r  
} smF#'"{  
} IE+$ET> t  
P'KaWu9z  
} (`k0tC2  
\3hhM}6)DM  
快速排序: SVpvx`&kT  
a9(1 6k  
package org.rut.util.algorithm.support; 5Q^ L"&0  
-z-58FLlO  
import org.rut.util.algorithm.SortUtil; 5tX|@Z: z  
-:Nowb  
/** "O<JVC{m  
* @author treeroot 5- 0  
* @since 2006-2-2 Pv1C o:  
* @version 1.0 xiX~*Zs  
*/ &$.Vi&{.  
public class QuickSort implements SortUtil.Sort{ vS6}R5  
Yc3r 3Jy  
/* (non-Javadoc) @`t)ly#N  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `^-?yu@  
*/ p^Kp= z  
public void sort(int[] data) { MGCwT@P  
quickSort(data,0,data.length-1); Pwt4e-  
} ?<YtlqL  
private void quickSort(int[] data,int i,int j){ p{"p<XFyO  
int pivotIndex=(i+j)/2; 2fT't"gw  
file://swap SXSH9;j  
SortUtil.swap(data,pivotIndex,j); v(3nBZHv_!  
dJ"3F(X  
int k=partition(data,i-1,j,data[j]); t48(,  
SortUtil.swap(data,k,j); HU-4k/I~  
if((k-i)>1) quickSort(data,i,k-1); L[)+J2_<  
if((j-k)>1) quickSort(data,k+1,j); sZ{Kl\1@  
.7ESPr  
} I1=YSi;A  
/** S U~vS   
* @param data 4f ~CG r  
* @param i s[)2z3  
* @param j v1?P$f*g  
* @return #\"8sY,j  
*/ ^2[0cne  
private int partition(int[] data, int l, int r,int pivot) { xojy[c#  
do{ 1b+ B  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 6cp x1y]~6  
SortUtil.swap(data,l,r); 0I* ^VGZ  
} k2sb#]-/}  
while(l SortUtil.swap(data,l,r); &ME[H  
return l; -iGt]mbJkP  
} k ~lj:7g~  
i >Hh_q;'  
} \K9XG/XIx  
E,JDO d}  
改进后的快速排序: ^ ]SS\=7  
B9KY$^J  
package org.rut.util.algorithm.support; r.** z j  
"\Jq2vM  
import org.rut.util.algorithm.SortUtil; PA 5ET@mD  
*Af]?-|^{#  
/** SE)_5|k*  
* @author treeroot Wznz  
* @since 2006-2-2 S,fMGKcq  
* @version 1.0 hi"[R@UG  
*/ *E+2E^B  
public class ImprovedQuickSort implements SortUtil.Sort { X?z5IL;rt  
@4^5C-  
private static int MAX_STACK_SIZE=4096; [bUM x  
private static int THRESHOLD=10; Ij(S"P@  
/* (non-Javadoc) ,RKBGOz?f  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d%Jl9!u  
*/ w-FZ`OA`D  
public void sort(int[] data) { 7)O?jc  
int[] stack=new int[MAX_STACK_SIZE]; @/l{  
[@U8&W  
int top=-1; D{Y~ kV|  
int pivot; B~^MhX +j  
int pivotIndex,l,r; ^+oi|y  
Z2)f$ c  
stack[++top]=0; LO[1xE9  
stack[++top]=data.length-1; LG'JQGl5  
W:O<9ZbQ_  
while(top>0){ P0~3<h?U8  
int j=stack[top--]; s0H_Y'  
int i=stack[top--]; L!V`Sb  
pRx^O F(3  
pivotIndex=(i+j)/2; *yKsgH  
pivot=data[pivotIndex]; >aW|W!.  
0*L|r Jf  
SortUtil.swap(data,pivotIndex,j); Dx$74~2e  
sSd  
file://partition @g9j+DcU  
l=i-1; M$ep.<Z1|  
r=j; =rl/ l8|P  
do{ a3?Dtoy'  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); & d\`=e  
SortUtil.swap(data,l,r); z{d],M  
} 6?Q&>V26Y  
while(l SortUtil.swap(data,l,r); (M4~N)7<P5  
SortUtil.swap(data,l,j); [6V'UI6  
Ky|Hi3?  
if((l-i)>THRESHOLD){ $Rv}L'L  
stack[++top]=i; kF3 EJ  
stack[++top]=l-1; H1| -f]!  
} (6A>:_)  
if((j-l)>THRESHOLD){ J9)wt ?%j  
stack[++top]=l+1; )PL'^gR r  
stack[++top]=j; :>nk63V (  
} _bqiS]:  
Fly@"W4a  
} YP>VC(f   
file://new InsertSort().sort(data); ZB:Fjq  
insertSort(data); -?e~dLu  
} |(}uagfrd  
/** G\Hck=P[$3  
* @param data $} TqBBe   
*/ j:"+/5rV8  
private void insertSort(int[] data) { Q}^ n  
int temp; yZHQql%J O  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 6NbIT[LvT  
} Ptzha?}OZ  
} SjKIn-  
} LoOyqJ,  
cmt3ceCb  
} I m_yY  
\@pl:Os  
归并排序: \>cZ=  
T=VVK6Lc:  
package org.rut.util.algorithm.support; ]SBv3Q0D7  
L45&O *%  
import org.rut.util.algorithm.SortUtil; ;&W N%L*  
dmP*2  
/** ~Az20RrK)  
* @author treeroot qw%4j9}  
* @since 2006-2-2 aP8Im1<A  
* @version 1.0 uWx/V+w  
*/ 5Ag]1k{  
public class MergeSort implements SortUtil.Sort{ ?P<&8eY  
s?~Abj_  
/* (non-Javadoc) ;Zj Qy,H%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) m{pL< g^M  
*/ IAnY+= ^  
public void sort(int[] data) { akm)X0!-}  
int[] temp=new int[data.length]; W}Nd3  
mergeSort(data,temp,0,data.length-1); ]_d(YHYf  
} 1Na CGD"  
/nb(F h|{T  
private void mergeSort(int[] data,int[] temp,int l,int r){ ~rpYZLH/:0  
int mid=(l+r)/2; PwF}yx kI  
if(l==r) return ; F__DPEAc_  
mergeSort(data,temp,l,mid); WRVKh  
mergeSort(data,temp,mid+1,r); Lrq+0dI 65  
for(int i=l;i<=r;i++){ |+!Jr_ By  
temp=data; c1|o^eZ  
} ed{z^!w4  
int i1=l; .a=M@; p  
int i2=mid+1; !!2~lG<]  
for(int cur=l;cur<=r;cur++){ ]P(Eo|)m  
if(i1==mid+1) LE1&atq  
data[cur]=temp[i2++]; >GT0 x  
else if(i2>r) D-ug$ZRg  
data[cur]=temp[i1++]; px4Z  
else if(temp[i1] data[cur]=temp[i1++]; (~}l?k  
else 5U1@wfKE3>  
data[cur]=temp[i2++]; ;-*4 (3lu  
} xBB:b\  
} @D0Ut9)  
}{iR+M X  
} =b`>ggw#  
3XL0Pm  
改进后的归并排序: EVb'x Zr  
>#!n"i;  
package org.rut.util.algorithm.support; ,{'~J @  
1-w1k ^e  
import org.rut.util.algorithm.SortUtil; v]VIUVd  
O "{o (  
/** !29 Rl`9  
* @author treeroot &]#D`u  
* @since 2006-2-2 ~0/=5 dC  
* @version 1.0 v`wPdb  
*/ LgBs<2  
public class ImprovedMergeSort implements SortUtil.Sort { ?:U6MjlQ"{  
OY[N%wr!  
private static final int THRESHOLD = 10; : FxZdE  
 4jG@ #  
/* kx'6FkZPIr  
* (non-Javadoc) WU=Os8gR  
* <#`<Ys3b*!  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0CTI=<;  
*/ @Chj0wWZ>  
public void sort(int[] data) { c?IIaj !  
int[] temp=new int[data.length]; _ZR2?y-M  
mergeSort(data,temp,0,data.length-1); X_%78$N-a`  
} #wC4$y<>  
Ma{|+\Q.Z  
private void mergeSort(int[] data, int[] temp, int l, int r) { 4<lZ;M"  
int i, j, k; q=96Ci_a  
int mid = (l + r) / 2; OsC1('4@  
if (l == r) `^_.E:f  
return; @<alWBS  
if ((mid - l) >= THRESHOLD) 8(g:i#~  
mergeSort(data, temp, l, mid); ->93.sge  
else *B3` #t  
insertSort(data, l, mid - l + 1); Dj<Vn%d*  
if ((r - mid) > THRESHOLD) p=Vm{i7  
mergeSort(data, temp, mid + 1, r); :k(aH Ua  
else  p&ZD1qa  
insertSort(data, mid + 1, r - mid); cT.1oaAM0  
.^Ek1fi.  
for (i = l; i <= mid; i++) { rJ<v1Yb  
temp = data; h?$4\^/  
} -ud!j  
for (j = 1; j <= r - mid; j++) { W6wgX0H  
temp[r - j + 1] = data[j + mid]; ;itz` 9T  
} d]a*)m&  
int a = temp[l]; S{ *RF)  
int b = temp[r]; FQ O6w'  
for (i = l, j = r, k = l; k <= r; k++) { zeR!Y yt!  
if (a < b) { Jh }3AoD  
data[k] = temp[i++]; (( t8  
a = temp; [>6:xGSe9X  
} else { z?E:s.4F  
data[k] = temp[j--]; tK]r>?Y\  
b = temp[j]; NCl={O9<j  
} Iy`Zh@"~  
} b`%/ *  
} 4}?Yp e-  
~0worI?  
/** <L5[#V_  
* @param data <4(rY9   
* @param l B23R9.FK  
* @param i j7uiZU;3Rx  
*/ zXMIDrq  
private void insertSort(int[] data, int start, int len) { >Wy@J]Y#  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); qY0GeE>N  
} 6'?Y]K  
} P_i2yhpK  
} ,hX03P-X  
} >F@7}Y(  
L6U[H#3(  
堆排序: j7O7P+DmS  
2:2rwH }e  
package org.rut.util.algorithm.support; [Ma&=2h  
yjN|PqtSV  
import org.rut.util.algorithm.SortUtil; ,D~C40f  
QbS w<V  
/** {$Fg+~   
* @author treeroot "1`c^  
* @since 2006-2-2 HiVF<tN  
* @version 1.0 9I9J}&4  
*/ ggX'`bK  
public class HeapSort implements SortUtil.Sort{ v#D9yttO{  
.F}ZP0THnZ  
/* (non-Javadoc) f@>27&'WV  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /[_>U{~P#  
*/ nvpdu)q<  
public void sort(int[] data) { v,1.n{!;  
MaxHeap h=new MaxHeap(); Lsuc*Ps  
h.init(data); nG{j x_{`  
for(int i=0;i h.remove(); O/l|\n  
System.arraycopy(h.queue,1,data,0,data.length); !L-.bve!  
} '{U56^b]  
q4(&.Al\@  
private static class MaxHeap{ )SUT+x(DU  
g24)GjDi  
void init(int[] data){ 6}{2W<  
this.queue=new int[data.length+1]; Z]oa+W+  
for(int i=0;i queue[++size]=data; RH>b,  
fixUp(size); <@5#  
} s`GSc)AI  
} y&9v0&o  
H6rWb6i  
private int size=0; 3(6i6 vV  
>y%$]0F1  
private int[] queue; 1 dI  
z`5+BL,|ND  
public int get() { }"Y]GH4Y  
return queue[1]; >RE&>T^8  
} g#5g0UP)V  
Z4bN|\I  
public void remove() { =F8uuYX%m  
SortUtil.swap(queue,1,size--); '-gk))u>)  
fixDown(1); =@V4V} ?  
} uoaF(F-  
file://fixdown k/!Vv#8  
private void fixDown(int k) { qV8;;&8r  
int j; 9v<BO$ ,a  
while ((j = k << 1) <= size) { D-A#{e _  
if (j < size %26amp;%26amp; queue[j] j++; 0xIr:aFF  
if (queue[k]>queue[j]) file://不用交换 ?i)-K?4Sb  
break; aztP`S$h  
SortUtil.swap(queue,j,k); SM! [ yC  
k = j; E9%xSMS8@  
} 26.iFt/:  
} u=#LY$  
private void fixUp(int k) { HSp*lHU  
while (k > 1) { _N9yC\  
int j = k >> 1; (al7/EhY  
if (queue[j]>queue[k]) G-bG}9vc]  
break; 9%kY8#%SV  
SortUtil.swap(queue,j,k); pRUN [[L  
k = j; aSXoYG0\  
} -(Taj[;[  
} +J_A *B  
B2WPjhzD  
} v#YO3nD  
)0fQ(3oOg  
} 0MrtJNF]_O  
9! gmS?f  
SortUtil: 2~Gcoda  
Wq F(  
package org.rut.util.algorithm; /o+, =7hY  
\qV5mD]"M  
import org.rut.util.algorithm.support.BubbleSort; {B?%r[nW  
import org.rut.util.algorithm.support.HeapSort; zrRt0}?xl  
import org.rut.util.algorithm.support.ImprovedMergeSort; IP&En8W+  
import org.rut.util.algorithm.support.ImprovedQuickSort; 7<|1 xOT  
import org.rut.util.algorithm.support.InsertSort; #x)G2T'?  
import org.rut.util.algorithm.support.MergeSort; ;=*b:y Y  
import org.rut.util.algorithm.support.QuickSort;  6:ZqS~-  
import org.rut.util.algorithm.support.SelectionSort; 5}e-\:J >B  
import org.rut.util.algorithm.support.ShellSort; :v1'(A1t  
2"yzrwZ:  
/** OtY.s\m y  
* @author treeroot dZ`nv[]k~  
* @since 2006-2-2 {BY`Wu:w  
* @version 1.0 .Z'CqBr[:  
*/ \ $X3n\  
public class SortUtil { 3(E"$Se,f  
public final static int INSERT = 1; P]]9Sqo7  
public final static int BUBBLE = 2; |K aXek  
public final static int SELECTION = 3; b;9v.MZ4>g  
public final static int SHELL = 4; y !47!Dn  
public final static int QUICK = 5; `^wF]R  
public final static int IMPROVED_QUICK = 6; zRsT6u  
public final static int MERGE = 7; Z9~~vf#  
public final static int IMPROVED_MERGE = 8; }Jh!B|  
public final static int HEAP = 9; XMa(XOnX  
f*2V  
public static void sort(int[] data) { qaG%PH}a  
sort(data, IMPROVED_QUICK); l \xIGs  
} e>uV8!u  
private static String[] name={ vyN =X]p  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" wf6ZzG:  
}; V6BCW;   
#++MoW}'g  
private static Sort[] impl=new Sort[]{ q fadsVp  
new InsertSort(), ',*I=JW;  
new BubbleSort(), kx]f`b  
new SelectionSort(), HEht^ /pJ  
new ShellSort(), ,UH`l./3DX  
new QuickSort(), ) ;-AT^  
new ImprovedQuickSort(),  5t:4%  
new MergeSort(), 67/hhO  
new ImprovedMergeSort(), 3/}=x<ui  
new HeapSort() MfCu\[qOz  
}; - FA#hUK$  
,5t.0XqS  
public static String toString(int algorithm){ 0-l @U{  
return name[algorithm-1]; JAmv7GL'6  
} A~h.,<+"  
Pt";f  
public static void sort(int[] data, int algorithm) { SZ1+h TY7d  
impl[algorithm-1].sort(data); Zo-s_6uC  
} N$:[`,  
~WR6rc  
public static interface Sort { jW?.>(  
public void sort(int[] data); r\ ` R$  
} G80d!*7  
G?'L1g[lc  
public static void swap(int[] data, int i, int j) { Ct$e`H!;  
int temp = data; JS!rZi  
data = data[j]; D-E30b]e  
data[j] = temp; s-o0N{b?#'  
} jP@H$$-=wH  
} /G G QO$'  
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