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
  • 6544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。 j2g#t  
插入排序: $d4eGL2S  
EzwYqw  
package org.rut.util.algorithm.support; /6b(w=pk  
l 8n#sGA%  
import org.rut.util.algorithm.SortUtil; ]g!k'@  
/** @4_W}1W  
* @author treeroot @UE0.R<  
* @since 2006-2-2 nSmYa7  
* @version 1.0 t k2B\}6  
*/ H+\rCefba  
public class InsertSort implements SortUtil.Sort{ d8/lEmv[  
^`Vt<DMT  
/* (non-Javadoc) ~1i,R1_\Y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _~fO8_vr  
*/ v`bX#\It  
public void sort(int[] data) { )%f]`<o  
int temp; DTsc&.29^  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ;"wU+  
} p~$\@8@  
} p~DlZk"  
} '&'? S  
;F"W6G  
} 'P39^rb  
q$0^U{j/  
冒泡排序: iMYvCw/t6  
Ilsh Jo  
package org.rut.util.algorithm.support; `yNNpSdS1  
)d_)CuUBe  
import org.rut.util.algorithm.SortUtil; &> p2N  
+);o{wfW  
/** "-90:"W  
* @author treeroot YNH>^cD1  
* @since 2006-2-2 3@\vU~=P:  
* @version 1.0 [A fV+$  
*/ (/Hq8o-Fw  
public class BubbleSort implements SortUtil.Sort{ \bZbz/+D  
Fu(e4E  
/* (non-Javadoc) 9Or3X/:o  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'w^1re= R  
*/ 0[x?Q[~S_0  
public void sort(int[] data) { DbH{; Fb  
int temp; t> -cTQm  
for(int i=0;i for(int j=data.length-1;j>i;j--){ HRC5z<k%  
if(data[j] SortUtil.swap(data,j,j-1); gXE'3  
} --dGN.*xb4  
} dPPe_% Ilr  
} 2u~0B +)K/  
} mv)M9c,`  
N|WnUlf]:  
} x{&0:|bCs6  
P)tXU  
选择排序: U"<Z^)  
Bz }Kdyur  
package org.rut.util.algorithm.support; hSQ P '6  
gPd:>$  
import org.rut.util.algorithm.SortUtil; jgVra*   
X CDHd ?Ld  
/** AuX&  
* @author treeroot tQF7{F-}  
* @since 2006-2-2 k$7-F3  
* @version 1.0 W#8qhmt  
*/ r9yUye}  
public class SelectionSort implements SortUtil.Sort { q;}^Jpb;  
t&ztY] qh  
/* 7'xT)~*$4  
* (non-Javadoc) 7"Zr:|$U  
* e*jn7aya  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V89!C?.[]1  
*/ 7Q/v#_e(  
public void sort(int[] data) { ZL+{?1&-  
int temp; Wu2#r\  
for (int i = 0; i < data.length; i++) { T=A7f6`  
int lowIndex = i; m Wsegq4  
for (int j = data.length - 1; j > i; j--) { 1x V~EX  
if (data[j] < data[lowIndex]) { `Z{; c  
lowIndex = j; EN+WEMro  
} ;#G>qo  
} o`DBzC  
SortUtil.swap(data,i,lowIndex); u> %r(  
} VX[{X8PkS  
} ? Ls]k  
3|[:8  
} ;KbnaUAS8  
w(k7nGU]  
Shell排序: X6N^<Z$  
 4O[5,  
package org.rut.util.algorithm.support; k(3 s^B  
uY5f mM9  
import org.rut.util.algorithm.SortUtil; AA^3P?iD  
QtW5; A-h  
/** /ZvNgaH5M  
* @author treeroot 13}=;4O  
* @since 2006-2-2 ~g;(` g  
* @version 1.0 t/u$Ts  
*/ .Xg%><{~  
public class ShellSort implements SortUtil.Sort{ OE}L})"  
s<sqO,!  
/* (non-Javadoc) a^)7&|$ E  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) L&Qdb xn  
*/  UY+~,a  
public void sort(int[] data) { +VAfT\G2  
for(int i=data.length/2;i>2;i/=2){ "Y7RvL!U  
for(int j=0;j insertSort(data,j,i); oYup*@t  
} $ *MjNj2  
} Y=vA ;BE]R  
insertSort(data,0,1); jSaEwN  
} c5mv4 MC  
&pZ]F=.r+  
/** >M[rOu (d  
* @param data U@BVVH?,o  
* @param j IgLP=mqcWK  
* @param i gA`/t e  
*/ ?F(t`0=  
private void insertSort(int[] data, int start, int inc) { z }R-J/xr2  
int temp; q ^n6"&;*  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); cJ&l86/l1  
} *[.+|v;A  
} e1[kgp   
} +S<2d.&~  
H-1@z$p  
} s%H5Qa+Uh  
$gJMF(  
快速排序: =uKK{\+|Y  
f|m.v +7k  
package org.rut.util.algorithm.support; Jn' q'+  
XFG]%y=/6  
import org.rut.util.algorithm.SortUtil; \%mR*J+  
RgRyo  
/** :1hp_XfJb  
* @author treeroot -x:Wp*,  
* @since 2006-2-2 [LjYLm%<  
* @version 1.0 (|(Y;%>-v  
*/ M\enjB7k  
public class QuickSort implements SortUtil.Sort{ 4AZlr*U  
3543[W#a  
/* (non-Javadoc) {pd%I  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pZlBpGQf  
*/ %vxd($Ti"  
public void sort(int[] data) { zc*qmb  
quickSort(data,0,data.length-1); P]yER9'  
} AWh{dM  
private void quickSort(int[] data,int i,int j){ >^+Q`"SN  
int pivotIndex=(i+j)/2; <saS2.4  
file://swap )#xd]~ <  
SortUtil.swap(data,pivotIndex,j); ^ }U{O A  
: b $ M  
int k=partition(data,i-1,j,data[j]); ;yBq'_e3  
SortUtil.swap(data,k,j); !+U#^2Gz  
if((k-i)>1) quickSort(data,i,k-1); ENA8o}n  
if((j-k)>1) quickSort(data,k+1,j); 9} eIidwK  
TcauCL  
} UF D_  
/** A!Xn^U*p  
* @param data y;;^o6Gnw  
* @param i *>$'aQ  
* @param j qf4|!UR{  
* @return s ~(qO|d  
*/ {Y` 0}  
private int partition(int[] data, int l, int r,int pivot) { _^#PV}  
do{ 03$Ay_2  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ;9,Ll%Lk<  
SortUtil.swap(data,l,r); v@Otp  
} )K8JDP  
while(l SortUtil.swap(data,l,r); ir \d8.  
return l; djZOx;/  
} P)(Ly5$*  
D;BFl(l  
} kki]6_/n  
[MFV:Z  
改进后的快速排序: P@k ;Lg"  
*Ty>-aS1  
package org.rut.util.algorithm.support; Vxo3RwmR  
*/O6cF7  
import org.rut.util.algorithm.SortUtil; 1V FAfv%}  
m4>v S  
/** +:/`&LOS-  
* @author treeroot '9{H(DA  
* @since 2006-2-2 ~qFi0<-M  
* @version 1.0 pC_2_,6$  
*/ 5C#&vYnq  
public class ImprovedQuickSort implements SortUtil.Sort { ]2h~Db=  
@^k$`W;  
private static int MAX_STACK_SIZE=4096; :L*CL 8m  
private static int THRESHOLD=10; l]oGhM;  
/* (non-Javadoc) <0JW[m  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <9\_b 6  
*/ kIU"-;5tP  
public void sort(int[] data) { <:q]t6]$  
int[] stack=new int[MAX_STACK_SIZE]; JOenVepQ,  
6l:CDPhR  
int top=-1; \DeZY97p%  
int pivot; tnRq?  
int pivotIndex,l,r; T(J&v|FK  
gbXzD`WQ  
stack[++top]=0; lq.AQ  
stack[++top]=data.length-1; #V4_.t#  
DFE?H  
while(top>0){ @@SG0YxZ  
int j=stack[top--]; FIC 2)  
int i=stack[top--]; J*a`qU   
4A|5eg9N  
pivotIndex=(i+j)/2; \-V  
pivot=data[pivotIndex]; TQID-I  
`A&64D  
SortUtil.swap(data,pivotIndex,j); XImb"7|  
xQWZk`6~L  
file://partition v,Ep2$  
l=i-1; zLf^O%zN  
r=j; oE-i`;\8  
do{ 9FcCq*D  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 9.vHnMcq  
SortUtil.swap(data,l,r); 9R'rFI  
} @B+  
while(l SortUtil.swap(data,l,r); t)$>++i  
SortUtil.swap(data,l,j); {{@3r5K Gl  
cN&b$ 8O=%  
if((l-i)>THRESHOLD){ y$4,r4cmR|  
stack[++top]=i; L.+5`&  
stack[++top]=l-1; K V  4>(  
} ro^Y$;G  
if((j-l)>THRESHOLD){ bG2 !5m4L  
stack[++top]=l+1; 7v%~^l7:x  
stack[++top]=j; "b-6kM  
} R:^GNra;  
b4oZ@gVR;  
} F =d L#@^  
file://new InsertSort().sort(data); A g/z\kX  
insertSort(data); 9FJU'$FN  
}  '=%vf  
/** $Iqt c)DA  
* @param data )|Y"^K%Jm  
*/ 7CrWsQl u  
private void insertSort(int[] data) { ==UH)o`?8  
int temp; XXxX;xz$  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 9-}&znLZe  
} 15Yy&9D  
} s- g[B(  
} o6B!ikz 8  
sx*(JM}Be  
} +de.!oY  
LLaoND6  
归并排序: o*5|W9  
ZFz>" vt@  
package org.rut.util.algorithm.support; Bv3?WW  
~~'XY(\L@  
import org.rut.util.algorithm.SortUtil; ;uR8pz e  
Yx XDRb\kW  
/** TxPP{6t  
* @author treeroot 4s0>QD$J  
* @since 2006-2-2 o7]h;Zg5r  
* @version 1.0 w;>]L.n  
*/ U/0NN>V  
public class MergeSort implements SortUtil.Sort{ "QGP]F  
|D`Zi>lv  
/* (non-Javadoc) y5+-_x,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {9'"!fH  
*/ `|v0@-'$  
public void sort(int[] data) { }IEYH&4!  
int[] temp=new int[data.length]; SGjaH 8z  
mergeSort(data,temp,0,data.length-1); f[h=>O  
} =We}&80 x  
"o=h /q5&  
private void mergeSort(int[] data,int[] temp,int l,int r){ %"+FN2nbm  
int mid=(l+r)/2; MJ &6 Z*  
if(l==r) return ; D@O '8  
mergeSort(data,temp,l,mid); 8l;0)`PU  
mergeSort(data,temp,mid+1,r); {7B$%G'  
for(int i=l;i<=r;i++){ OO53U=NU  
temp=data; gt{ei)2b  
} @: %}clZ  
int i1=l; tEBf2|<  
int i2=mid+1; +>c)5Jih  
for(int cur=l;cur<=r;cur++){ !=k\Rr@qx  
if(i1==mid+1) cs~ }k7><  
data[cur]=temp[i2++]; qXP)R/~OZ  
else if(i2>r) &k : |  
data[cur]=temp[i1++]; Xo{Ce%L  
else if(temp[i1] data[cur]=temp[i1++]; q'q'v S  
else *A c~   
data[cur]=temp[i2++]; CF =#?+x  
} *!l q1h  
} <NT/+>:2  
_xUiHX<  
} J"FKd3~:E  
NoZz3*j=  
改进后的归并排序: Oh<Z0M)  
v8-F;>H  
package org.rut.util.algorithm.support; _qJ[~'m<^C  
^'v6 ,*:4  
import org.rut.util.algorithm.SortUtil; YgdoQBQ  
,| xG2G6  
/** URJ"  
* @author treeroot NjsP"  
* @since 2006-2-2 ^vsOlA(4  
* @version 1.0 P,D >gxl  
*/ *w> /vu  
public class ImprovedMergeSort implements SortUtil.Sort { 5\EHu8  
'HW(RC0dR  
private static final int THRESHOLD = 10; e`#Gq0}8  
nV"[WngN  
/* w&:h^u  
* (non-Javadoc) >\(Ma3S   
* ,7/un8:%c  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jwAO{.}T1r  
*/ p B?a5jpA  
public void sort(int[] data) { OkA-=M)RI:  
int[] temp=new int[data.length]; +zz9u?2C`  
mergeSort(data,temp,0,data.length-1); >JCSOI  
} Odw SNG  
)bw>)&)b`  
private void mergeSort(int[] data, int[] temp, int l, int r) { I%{^i d@  
int i, j, k; YfF&: "-NU  
int mid = (l + r) / 2; Pgye{{  
if (l == r) ;@v7AF6Hq  
return; *M- .Vor?R  
if ((mid - l) >= THRESHOLD) ] p+t>'s  
mergeSort(data, temp, l, mid); W+Gu\=s%O  
else G9Azd^3  
insertSort(data, l, mid - l + 1); SuGlNp>#qm  
if ((r - mid) > THRESHOLD) ^Fb"Is#S,  
mergeSort(data, temp, mid + 1, r); cr,o<  
else E3NYUHfZ  
insertSort(data, mid + 1, r - mid); K<Ct  
[h8F)  
for (i = l; i <= mid; i++) { vlzjALy  
temp = data; De:w(Rm  
} pMa 3R3a  
for (j = 1; j <= r - mid; j++) { glk I9~  
temp[r - j + 1] = data[j + mid]; \mWXr*;  
} S)JZ b_  
int a = temp[l]; j cx/ZR  
int b = temp[r]; !jYV,:'  
for (i = l, j = r, k = l; k <= r; k++) { <uv{/L b  
if (a < b) { \UtUP#Y{t  
data[k] = temp[i++];  w8FZXL  
a = temp;  _%i|*  
} else { ] ^  
data[k] = temp[j--]; D8[&}D4  
b = temp[j]; ?ADk`ts~,}  
} 1T}|c;fc  
} `Rj i=k>  
} Qyd3e O_  
4_r8ynq{z  
/** f()^^+  
* @param data vbwEX6  
* @param l hw~cS7  
* @param i BIV]4vl-&  
*/ K7e<hdP_#  
private void insertSort(int[] data, int start, int len) { %q ja:'k  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); jGt'S{  
} n!HFHy2  
} vc^PXjX  
} &[RC4^;\V  
} fjp>FVv3  
{"{J*QH  
堆排序: )#*c|.  
.=^h@C*   
package org.rut.util.algorithm.support; "lN<v=  
:VLuI  
import org.rut.util.algorithm.SortUtil; rD$7;  
^D vaT9s  
/** E8NIH!dI  
* @author treeroot G*J(4~Yw}  
* @since 2006-2-2 QW6k!ms$  
* @version 1.0 |S>nfL{TQe  
*/ 3t%uUkXl  
public class HeapSort implements SortUtil.Sort{ o2Pj|u*X  
*jA%.F  
/* (non-Javadoc) Hyee#fB  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1egryp  
*/ -P'>~W,~  
public void sort(int[] data) { \dufKeiS&a  
MaxHeap h=new MaxHeap(); <;U"D.'  
h.init(data); =797;|B H  
for(int i=0;i h.remove(); $T3/*xN  
System.arraycopy(h.queue,1,data,0,data.length); 5-]%D(y  
} *+@/:$|U  
7*[>e7:A  
private static class MaxHeap{ 6e~+@S  
j&8 ~X2?*  
void init(int[] data){ B8a!"AQ~5  
this.queue=new int[data.length+1]; 2M1yw "  
for(int i=0;i queue[++size]=data; !L3Bvb;Q  
fixUp(size); ~{d94o.  
} \19XDqf8  
} 6[qRb+ds  
N?87Bd  
private int size=0; df8rf8B-  
G]&:">&R  
private int[] queue; VK`b'U &l"  
sBSBDjk[  
public int get() { =1+I<Ljk  
return queue[1]; !7bC\ {  
} dm,bZHo  
qRB%G<H  
public void remove() { w_|WberU  
SortUtil.swap(queue,1,size--); iZ_R oJ  
fixDown(1); V?Nl%M[b  
} @d4zSG/s5w  
file://fixdown ao7|8[  
private void fixDown(int k) { 162qxR[.  
int j; m41n5T`  
while ((j = k << 1) <= size) { ""WZpaw  
if (j < size %26amp;%26amp; queue[j] j++; p=405~  
if (queue[k]>queue[j]) file://不用交换 WtlIrdc  
break; C<n.C*o  
SortUtil.swap(queue,j,k); Ho"FB|e  
k = j; IOmIkx&`GP  
} Q g"{F},4  
} s0nihX1Z-  
private void fixUp(int k) { ?TzN?\   
while (k > 1) { wy Le3  
int j = k >> 1; 6xBP72L;%"  
if (queue[j]>queue[k]) &ul9N)A  
break; +d'h20  
SortUtil.swap(queue,j,k); EB> RY+\  
k = j; MuO>O97  
} q2/Vt0aYx  
} SULWPH5Pr  
]pB~&0jg  
} *><] [|Y@H  
PK+][.6H  
} 9:=a FP  
y>~Ke UC  
SortUtil: /6S/a*`<X  
.vT'hu  
package org.rut.util.algorithm; ?94da4p  
9Z+@i:_}  
import org.rut.util.algorithm.support.BubbleSort; m9PcDhv  
import org.rut.util.algorithm.support.HeapSort; Js=|r;'  
import org.rut.util.algorithm.support.ImprovedMergeSort; ;G},xDGO_m  
import org.rut.util.algorithm.support.ImprovedQuickSort; p.l]% \QI  
import org.rut.util.algorithm.support.InsertSort; !J:DBtGT  
import org.rut.util.algorithm.support.MergeSort; OEAF.  
import org.rut.util.algorithm.support.QuickSort; ]j{S' cz  
import org.rut.util.algorithm.support.SelectionSort; ( bBetX  
import org.rut.util.algorithm.support.ShellSort; Y<0f1N  
9r8{9h:  
/** }xdI{E1 q)  
* @author treeroot t*D[Q$v  
* @since 2006-2-2 O-&n5  
* @version 1.0 slPFDBx  
*/ Qy3e ,9nS  
public class SortUtil { q2hZ1o  
public final static int INSERT = 1; x b_C1n  
public final static int BUBBLE = 2; 4&$G;?#W2  
public final static int SELECTION = 3; b1 KiO2 E  
public final static int SHELL = 4; >?$Ze@  
public final static int QUICK = 5; @u$oqjK  
public final static int IMPROVED_QUICK = 6; PD/~@OsxU  
public final static int MERGE = 7; I&(cdKY z  
public final static int IMPROVED_MERGE = 8; _nTjCN625  
public final static int HEAP = 9; H%sQVE7m  
^lQ-w|7(  
public static void sort(int[] data) { ' bT9AV%  
sort(data, IMPROVED_QUICK); *y0`P0V|8  
} 8a05`ZdP  
private static String[] name={ \<PX'mnO  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 4ErDGYg}  
}; }e@j(*8  
M(2[X/t  
private static Sort[] impl=new Sort[]{ h+Z|s  
new InsertSort(), \|T0@V  
new BubbleSort(), Xbu >8d?n  
new SelectionSort(), tHu8|JrH+  
new ShellSort(), &[s^`e  
new QuickSort(), >?tcL *  
new ImprovedQuickSort(), 6%yr>BFtVV  
new MergeSort(), ]XP[tLY Y  
new ImprovedMergeSort(),  vG  
new HeapSort() =)bZSb"<"  
}; z_Qw's  
|H@M-  
public static String toString(int algorithm){ "1[N;|xa  
return name[algorithm-1]; ga,yFw  
} +HfjnEbtBs  
aG" UV\  
public static void sort(int[] data, int algorithm) { m|-O/6~  
impl[algorithm-1].sort(data); %ZQl.''ISa  
} 6dinC <[}  
E?FPxs  
public static interface Sort { F-=er e  
public void sort(int[] data); -|3U0: 'm  
} ^iI^)  
5-C6;7%:  
public static void swap(int[] data, int i, int j) { x/4lD}Pw]  
int temp = data; %d?%^) u,  
data = data[j]; {?j|]j  
data[j] = temp; F\]rxl4(L  
} qrdA?V V  
} o?%x!m>  
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:
10+5=?,请输入中文答案:十五