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
  • 9070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。 ^IOf%  
插入排序: nV,qC .z  
\$T  
package org.rut.util.algorithm.support; :"g^y6i  
YwQxN"  
import org.rut.util.algorithm.SortUtil; Y[i>  
/** 63QMv[`,  
* @author treeroot ~dC)EG  
* @since 2006-2-2 c<wsWs 4V  
* @version 1.0 @D^y<7(  
*/ kjfZ*V=-  
public class InsertSort implements SortUtil.Sort{ ]Vo;ZY_\  
$Lv,e\]  
/* (non-Javadoc) L&MR%5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "yXKu)_  
*/ TDs=VTd@Z  
public void sort(int[] data) { \Pi\c~)Pr  
int temp; G)]'>m<y  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); B^P)(Nu+  
} Q4Zuz)r*  
} 0z #'=XWk  
} [-_3Zr  
P{i\x#  
} q,F\8M\$  
pYa8iQ`6U;  
冒泡排序: >0DQ<@ot:  
f 5"1WtB  
package org.rut.util.algorithm.support; ;e4 15T  
z85%2Apd  
import org.rut.util.algorithm.SortUtil; d&4 ve Lu  
P}29wrIZ  
/** F&%@p&  
* @author treeroot $wg5q\Rv  
* @since 2006-2-2 jzI70+E  
* @version 1.0 :m]~o3KRy  
*/ h:-ZXIv?  
public class BubbleSort implements SortUtil.Sort{ W@`2+}  
kd)Q$RA(  
/* (non-Javadoc) XLb lVi@  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *`Swv`  
*/ b3F)$UQ  
public void sort(int[] data) { _8A  
int temp; h/5|3  
for(int i=0;i for(int j=data.length-1;j>i;j--){ #%N v\ g;  
if(data[j] SortUtil.swap(data,j,j-1); Y[)b".K  
} nF>41 K  
} "BT*9N=|  
} O 7RIcU  
} O42`Z9oK  
pqe7a3jr  
} 3}dTbr4y  
hb#Nm6  
选择排序: d-c<dS+R  
N(uHy@  
package org.rut.util.algorithm.support; V5:ad  
"@^Pb$BLY  
import org.rut.util.algorithm.SortUtil; ]8q#@%v }  
x1H1[0w,i  
/** -fpe  
* @author treeroot <}75Xo  
* @since 2006-2-2 2[~|#0x  
* @version 1.0 oC ?UGY~xL  
*/ _PT5  
public class SelectionSort implements SortUtil.Sort { A12EUr5$  
T5nBvSVv'  
/* >[}lC7 z,  
* (non-Javadoc) }Q $}LR@  
* 3LGX ^J<f  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) yPY}b_W  
*/ C7*n<+e  
public void sort(int[] data) { <*JFY%y "  
int temp; aeZ$Wu>]W  
for (int i = 0; i < data.length; i++) { S[ch/  
int lowIndex = i; m`i_O0T  
for (int j = data.length - 1; j > i; j--) { V>Dqw!  
if (data[j] < data[lowIndex]) { 'Qdea$o  
lowIndex = j; v[;R(pt?  
} |RjAp.pm  
} IiU\}<O  
SortUtil.swap(data,i,lowIndex); dG&^M ".(  
} %k%%3L,  
} T@wgWE<0y_  
K|pg'VT"  
} |I[/Fl:  
{W+IUvn  
Shell排序: 5P Zzaz<  
Qy ghNImp  
package org.rut.util.algorithm.support; R + ~b@  
hrNB"W|?x  
import org.rut.util.algorithm.SortUtil; |`ya+/ff+  
.n n&K}h  
/** l1bkhA b  
* @author treeroot H*j!_>W  
* @since 2006-2-2 l-Be5?|{_  
* @version 1.0 6Hbu7r*tm  
*/ /4*Y#IpZ  
public class ShellSort implements SortUtil.Sort{ 0iYo&q'n  
(C;Q<  
/* (non-Javadoc) /#WvC;B  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) T;G<62`.h  
*/ ZDG~tCh=@  
public void sort(int[] data) { %pIP#y[4  
for(int i=data.length/2;i>2;i/=2){ 0G31Kou  
for(int j=0;j insertSort(data,j,i); i;rcg d  
} MaPOmS8?  
} WBD?|Ss  
insertSort(data,0,1); Lqdapx"Z_  
} [~PR\qm  
dz?On\66  
/** tr5j<O  
* @param data h@E7wp1'~  
* @param j 0kSM$D_  
* @param i Xp] jF^5  
*/ o$eo\X?J?  
private void insertSort(int[] data, int start, int inc) { 0-~s0R89A  
int temp; j]FK.G'  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 9: .m]QN  
} nK32or3  
} CT5s`v!s  
} s`ZP2"`f  
Lb)rloca  
} xP_/5N=f  
Nc &J%a  
快速排序: C{,^4Eh3r  
D Qz+t  
package org.rut.util.algorithm.support; _1Q6FI5iR  
cnS;9=,&  
import org.rut.util.algorithm.SortUtil; IIT UM)  
Pz34a@%"  
/** |_ +#&x  
* @author treeroot 7O'.KoMw  
* @since 2006-2-2 y=c={Qz@vn  
* @version 1.0 k_{?{:X;y  
*/ ]=VRct "  
public class QuickSort implements SortUtil.Sort{ ;p2b^q'  
JOpH Z?  
/* (non-Javadoc) 5[g\.yi2_]  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (8aj`> y  
*/ r<vy6  
public void sort(int[] data) { d|oO2yzWv  
quickSort(data,0,data.length-1); 3:MJKS02OD  
} E_En"r)y  
private void quickSort(int[] data,int i,int j){ 1cv~_jFh  
int pivotIndex=(i+j)/2; (M"rpG>L  
file://swap Bcarx<P-p  
SortUtil.swap(data,pivotIndex,j); [nZIV  
%0}^M1  
int k=partition(data,i-1,j,data[j]); v+"4YIN  
SortUtil.swap(data,k,j); ~x!up 9  
if((k-i)>1) quickSort(data,i,k-1); n8F~!|lQ0  
if((j-k)>1) quickSort(data,k+1,j); GyWa=KW.u  
?WHf%Ie2(  
} 3r, ~-6  
/** ;RJ 8h x  
* @param data | bz%SB  
* @param i R?O)v Lmd  
* @param j Oo@o$\+v  
* @return g&c ~grD  
*/ y7M{L8{0  
private int partition(int[] data, int l, int r,int pivot) { Ac|\~w[\  
do{ >P:X\5Oj  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); HB8s[]A:D  
SortUtil.swap(data,l,r); sde>LZet/  
} v8*)^-Fx  
while(l SortUtil.swap(data,l,r); IO)#O<  
return l; s 91[@rh/  
} P2a5<#_|  
NDP" @  
} ,JE_aje7  
R ,qQC<  
改进后的快速排序: /j$=?Rp  
/T)E&=Ds  
package org.rut.util.algorithm.support; #dj?^n g  
B6Kl_~gT  
import org.rut.util.algorithm.SortUtil; :R,M Y"(  
4}h}`KZZ  
/** -3R:~z^L  
* @author treeroot (MI>7| ';  
* @since 2006-2-2 WHY/x /$  
* @version 1.0 [|OII!"  
*/ *z?Uh$I4  
public class ImprovedQuickSort implements SortUtil.Sort { M_};J;  
(c(F1=K  
private static int MAX_STACK_SIZE=4096; b<00 %Z  
private static int THRESHOLD=10; x%=CEe?6  
/* (non-Javadoc) .how@>:P+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) R J{$`d  
*/ g0tnt)]  
public void sort(int[] data) { &/? Ct!_  
int[] stack=new int[MAX_STACK_SIZE]; ^ ~Eh+  
TC?B_;a  
int top=-1; TwPQ8}pj?  
int pivot; I_ mus<sE  
int pivotIndex,l,r; v.Ba  
4GRD- f[  
stack[++top]=0; |6*Bu1  
stack[++top]=data.length-1; HrBJi  
`F7]M  
while(top>0){ '`P%;/z  
int j=stack[top--]; N&NBn(  
int i=stack[top--]; R ZY=c  
( 2HM "Pd  
pivotIndex=(i+j)/2; 0SIC=p=J  
pivot=data[pivotIndex]; &u.{]Yjx  
qNQ54#  
SortUtil.swap(data,pivotIndex,j); K3?5bT_{  
S/'0czDMW  
file://partition <kK>C8+  
l=i-1; OyZR&,q  
r=j; m^D'p  
do{ Tc6cBe,  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); !g|O.mt  
SortUtil.swap(data,l,r); UX)GA[WI  
} >|QH I d8  
while(l SortUtil.swap(data,l,r); f$o^Xu  
SortUtil.swap(data,l,j); 0^ODJ7  
G(&[1V%x  
if((l-i)>THRESHOLD){ >2s4BV[(  
stack[++top]=i; rOSov"7  
stack[++top]=l-1;  =_dM@j  
} E]@&<TFq  
if((j-l)>THRESHOLD){ cE]z Tu?!  
stack[++top]=l+1; kTb$lLG\xk  
stack[++top]=j; l00i2w  
} A[Mke  
+U o NJ   
} C*Vm}|)  
file://new InsertSort().sort(data); 0'Pjnk-i  
insertSort(data); pbVL|\oB}  
} X0.H(p#s  
/** Xh@K89`uX  
* @param data cJ4My#w  
*/ /Y0~BQC7!  
private void insertSort(int[] data) { B.8B1MFm  
int temp; V\L;EHtc$  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); F!vrvlD`s  
} t+?Bb7p,H  
} WPNB!" E98  
} .|,LBc!  
\*$^}8  
} r[L.TX3Ah=  
f8Hq&_Pn   
归并排序: <o(;~  
t#NPbLZ  
package org.rut.util.algorithm.support; o*KAS@&  
cIU2qFn[  
import org.rut.util.algorithm.SortUtil; xs"i_se  
zj`c%9N+  
/** ]\39#  
* @author treeroot '.Y,VJaL  
* @since 2006-2-2 Wmbc `XC  
* @version 1.0 Ik:G5m<ta  
*/ DG TLlBkT  
public class MergeSort implements SortUtil.Sort{ U!NuiKaQ26  
T<"Bb[kH  
/* (non-Javadoc) .]s? 01Z  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C+g}+  
*/ r8?p6E  
public void sort(int[] data) { ;|0P\3  
int[] temp=new int[data.length]; {Wi*B(  
mergeSort(data,temp,0,data.length-1); +80bG(I_  
} _VVq&t}  
} C:i0Q  
private void mergeSort(int[] data,int[] temp,int l,int r){ 7B=VH r  
int mid=(l+r)/2; Z,O* p,Gzn  
if(l==r) return ; j#~~_VA~  
mergeSort(data,temp,l,mid); Hi$R"O (  
mergeSort(data,temp,mid+1,r); Hqs!L`oW)  
for(int i=l;i<=r;i++){ Ar[|M 2|  
temp=data; ^lt2,x   
} 9!(%Vf>  
int i1=l; &bz% @p;  
int i2=mid+1; AH:uG#  
for(int cur=l;cur<=r;cur++){ df$.gP  
if(i1==mid+1) `g3AM%3  
data[cur]=temp[i2++]; !Ve0:$  
else if(i2>r) q&J5(9]O|L  
data[cur]=temp[i1++]; FR[I~unqD  
else if(temp[i1] data[cur]=temp[i1++]; 3>^]r jFw  
else i@.Tv.NZ  
data[cur]=temp[i2++]; ,dR.Sac v  
} 0FtwDM))  
} a#"orc j  
icIn>i<m  
} JRw,${W  
nj:w1E/R  
改进后的归并排序: ||>4XDV#  
)ds]fvMW]N  
package org.rut.util.algorithm.support; Yj1|]i5b  
VC/-5'_6  
import org.rut.util.algorithm.SortUtil; JPAjOcmU/  
@B (oq1i@  
/** tp}/>gU!  
* @author treeroot P%lD9<jED  
* @since 2006-2-2 Fz';H  
* @version 1.0 $] "M`h  
*/ o+&Om~W  
public class ImprovedMergeSort implements SortUtil.Sort { lUB?eQuN_  
On}1&!{1]  
private static final int THRESHOLD = 10; Ba8=nGa4KY  
%L*EB;nK  
/* l;0([_>*j  
* (non-Javadoc) #i@f%Bq-  
* OU/}cu  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S xJ&5q  
*/ !(F?`([A  
public void sort(int[] data) { A6]X aF  
int[] temp=new int[data.length]; M%`CzCL u  
mergeSort(data,temp,0,data.length-1); i,r:R g~  
} cVW7I  
TPJF?.le '  
private void mergeSort(int[] data, int[] temp, int l, int r) { .)b<cH~%  
int i, j, k; h8asj0  
int mid = (l + r) / 2; yy8-t2V  
if (l == r) +FqD.=8  
return; @d0f+9d  
if ((mid - l) >= THRESHOLD) ih".y3  
mergeSort(data, temp, l, mid); KhfADqji|  
else XQ}J4J~Vm  
insertSort(data, l, mid - l + 1); i`2SebDj'w  
if ((r - mid) > THRESHOLD) ")No t$8  
mergeSort(data, temp, mid + 1, r); B1)Eo2i#  
else g= $U&Hgs  
insertSort(data, mid + 1, r - mid); BA: x*(%~  
)~wKRyQff  
for (i = l; i <= mid; i++) { -i:WA^yKgw  
temp = data; z qq  
} lf7bx}P*  
for (j = 1; j <= r - mid; j++) { bwXeEA@{  
temp[r - j + 1] = data[j + mid]; RH;ulAD6(~  
} %m |I=P  
int a = temp[l]; ML905n u  
int b = temp[r]; a{T.U-0   
for (i = l, j = r, k = l; k <= r; k++) { ~gd#cL%  
if (a < b) { am]M2+,2Ip  
data[k] = temp[i++]; D8wf`RUt  
a = temp; jG[Vp b  
} else { HJAiQ[m5s  
data[k] = temp[j--]; `xBoNQai  
b = temp[j]; tdH[e0x B  
} Wn=sF,c  
} MT&aH~YB  
} `HRL .uX  
~-zTY&c_  
/** fwz:k]vk  
* @param data cb9-~*1  
* @param l 754MQK|g  
* @param i e3; &  
*/ }i~k:kmV  
private void insertSort(int[] data, int start, int len) { $os]$5(  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); {1Ra |,;  
} h~k<"  
} Gw<D'b)!  
} 27D*FItc  
} {}YA7M:L  
s=n4'`y1  
堆排序: MV"n{1B  
N55F5  
package org.rut.util.algorithm.support; epiviCYC  
_X4Y1zh  
import org.rut.util.algorithm.SortUtil; $NVVurXa  
1VgGF^cYR  
/** zzf@U&x<  
* @author treeroot {cs>Sy 4  
* @since 2006-2-2 q%4X1 W  
* @version 1.0 jKml:)k  
*/ 0zH-g  
public class HeapSort implements SortUtil.Sort{ Ku ,wI86  
dC({B3#e{  
/* (non-Javadoc) |E1U$,s~u  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C1D:Xi-  
*/ K ";Et  
public void sort(int[] data) { n2mO-ZXud  
MaxHeap h=new MaxHeap(); >_2~uF@pb  
h.init(data); bh.&vp.kP  
for(int i=0;i h.remove(); /2Wg=&H  
System.arraycopy(h.queue,1,data,0,data.length); x:FZEyalG  
} 8 MO-QO  
&gp&i?%X9b  
private static class MaxHeap{ PMytk`<`zw  
A r!0GwE+  
void init(int[] data){ ,4Q4{Tx  
this.queue=new int[data.length+1]; ?62Im^1/  
for(int i=0;i queue[++size]=data; ^{uHph9ny  
fixUp(size); @U_ CnhPQq  
} v#Rh:#7O%U  
} l5T[6C  
3>h2 W  
private int size=0; JVIFpN"`  
C+TB>~Gv`  
private int[] queue; i O$87!  
EHC7b^|3}  
public int get() { |SOLC  
return queue[1]; _qa]T'8  
} 8ao-]QoMZ  
_Tj&gyS  
public void remove() { -P}A26qB  
SortUtil.swap(queue,1,size--); FoetP`   
fixDown(1); >/A]C$?3  
} S9Sgd&a9  
file://fixdown U823q-x  
private void fixDown(int k) { +4:eb)e  
int j; 4 . 7X*1  
while ((j = k << 1) <= size) { M{L- V  
if (j < size %26amp;%26amp; queue[j] j++; 7 FE36Ub9  
if (queue[k]>queue[j]) file://不用交换 N (4H}2  
break; TaRPMKk  
SortUtil.swap(queue,j,k); a^%)6E.[,  
k = j; J1G}l5N  
} J9[7AiEd(/  
} pT|s#-}  
private void fixUp(int k) { GTR*3,rw  
while (k > 1) { gF,=rT1:>r  
int j = k >> 1; B@(d5i{h  
if (queue[j]>queue[k]) I;w!  
break; 'W(u.  
SortUtil.swap(queue,j,k); 4gen,^Ij  
k = j; F1.Xk1y%  
} U 3< 3T  
} j,.M!q]  
DC h !Z{I  
} 6Hnez@d  
.Exvuo`F  
} #%[;v K  
BaQyn 6B  
SortUtil: 23tX"e  
zpwoK&T+  
package org.rut.util.algorithm; q KD  
m#UQ,EM  
import org.rut.util.algorithm.support.BubbleSort; A1prYD  
import org.rut.util.algorithm.support.HeapSort; 4J5zSTw  
import org.rut.util.algorithm.support.ImprovedMergeSort; f 0H.$UAL  
import org.rut.util.algorithm.support.ImprovedQuickSort; vQ}ZfP  
import org.rut.util.algorithm.support.InsertSort; ?SNacN@r  
import org.rut.util.algorithm.support.MergeSort; qHub+"2  
import org.rut.util.algorithm.support.QuickSort; M*0^<e~]F  
import org.rut.util.algorithm.support.SelectionSort; U\P4ts  
import org.rut.util.algorithm.support.ShellSort; |N`0G.#  
b,^ "-r  
/** WJD2(el  
* @author treeroot ?(gha  
* @since 2006-2-2 + Tp% *  
* @version 1.0 @MOQk  
*/ |aP`hVm  
public class SortUtil { 684& H8  
public final static int INSERT = 1; 3*<@PXpK&  
public final static int BUBBLE = 2; ,cNe-KJk  
public final static int SELECTION = 3; 3WP\MM  
public final static int SHELL = 4; 8r(a wp  
public final static int QUICK = 5; ``CM7|)>`  
public final static int IMPROVED_QUICK = 6; Da 7(jA+  
public final static int MERGE = 7; 5a/A?9?,  
public final static int IMPROVED_MERGE = 8; th73eC'  
public final static int HEAP = 9; a(vt"MQ_  
#ZCgpg$wM  
public static void sort(int[] data) { <C+ :hsS=  
sort(data, IMPROVED_QUICK); ~bigaY  
} QMy;?,  
private static String[] name={ "LaNXZ9  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" &5(|a"5+G  
}; PLFM[t/  
L(`^T`  
private static Sort[] impl=new Sort[]{ : 60PO  
new InsertSort(), p|(910OEQ  
new BubbleSort(), Arir=q^2  
new SelectionSort(), =ub&@~E  
new ShellSort(), U6jlv3  
new QuickSort(), o$d; Y2K  
new ImprovedQuickSort(), "SLN8x49(  
new MergeSort(), U+@yx>!  
new ImprovedMergeSort(), XLqS{r~?  
new HeapSort() MukPY2[Am  
}; w,eYrxR|N  
H!Uy4L~>  
public static String toString(int algorithm){ v :6`(5  
return name[algorithm-1]; *r:8=^C7S  
} bxkp9o  
T-fW[][&$  
public static void sort(int[] data, int algorithm) { n@T4z.*~lA  
impl[algorithm-1].sort(data); fhMtnh:  
} {* >$aI  
+wD--24!(  
public static interface Sort { yHr/i) c  
public void sort(int[] data);  B*Hp  
} oF]0o`U&a  
#4%,09+  
public static void swap(int[] data, int i, int j) { UgSSZ05Lq  
int temp = data; H&mw!=FV0  
data = data[j]; eW\7X%I  
data[j] = temp; xzW]D0o0  
} 5y}}?6n+  
} OPwp(b  
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 或 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