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
  • 8000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。 ~5f|L(ODX  
插入排序: ST^@7f_  
X`QfOs#\  
package org.rut.util.algorithm.support;  B3Yj  
o3mxtE]  
import org.rut.util.algorithm.SortUtil; )%}?p2.  
/** Q%AD6G(7  
* @author treeroot lYz$~/sd  
* @since 2006-2-2 aJ"Tt>Y[.~  
* @version 1.0 aK ly1G  
*/ #CM^f^*  
public class InsertSort implements SortUtil.Sort{ <XfCQq/  
wJb\Q  
/* (non-Javadoc) 05+uBwH  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0k];%HV|  
*/ W9$mgs=S`E  
public void sort(int[] data) { wkp|V{k  
int temp; hgz7dF  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); :h|nV ~  
} ,B,2t u2  
} tvC7LLNP<  
} @Lj28&4:<  
(S@H'G"  
} r}gp{Pf7e  
t-vH\m  
冒泡排序: & q(D90w.  
~IB~>5U!  
package org.rut.util.algorithm.support; (aO+7ykRuJ  
.-:R mYGR  
import org.rut.util.algorithm.SortUtil; `GG PkTN  
U =()T}b>  
/** &UWSf  
* @author treeroot )eFq0+6*)  
* @since 2006-2-2 a*8^M\>m4  
* @version 1.0 *d,u)l :S  
*/ 9tnW:Nw~  
public class BubbleSort implements SortUtil.Sort{ D;V FM P  
=a_B'^`L  
/* (non-Javadoc) w:}RS.AK  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tXocGM {6C  
*/ GUe&WW:Sqk  
public void sort(int[] data) { .&53WL[D|  
int temp; ,UdTUw~F  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ijYSYX@  
if(data[j] SortUtil.swap(data,j,j-1); 27;t,Oq}  
} UeVRd  
} P2nb&lVdu  
} !2('Cq_^  
} *lN>RWbM%  
&k5 Z|d|  
} >^@/Ba$h  
XK)qDg  
选择排序: _Z:WgO].  
hr8v O"tZN  
package org.rut.util.algorithm.support; r9/PmZo4x  
+yq Z\$ii  
import org.rut.util.algorithm.SortUtil; r+BPz%wM=O  
& >AXB6  
/** ;b[% L&  
* @author treeroot ~CQYF,[Th  
* @since 2006-2-2 }5RCks;)*  
* @version 1.0 ,R j{^-k  
*/ *Mt's[8  
public class SelectionSort implements SortUtil.Sort { J`ia6fy.I  
+G3&{#D ?  
/* 1RtbQ{2F;  
* (non-Javadoc) a& Ti44a[  
* rZDmZm?=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) xQ `>\f  
*/ t` R#pQ  
public void sort(int[] data) {  /{ .  
int temp; bP`.teO\  
for (int i = 0; i < data.length; i++) { <Gy)|qpK[  
int lowIndex = i; 0R,?$qM\  
for (int j = data.length - 1; j > i; j--) { VP$`.y  
if (data[j] < data[lowIndex]) { 'm@0[i  
lowIndex = j; "28b&pm  
} d#N<t`  
} bBkF,`/f$  
SortUtil.swap(data,i,lowIndex); :[iWl8  
} `0tzQ>ZQq  
} h Znq\p~  
hsVf/%  
} g/b_\__A  
@)>9l&  
Shell排序: m<>3GF,5bP  
2 $^n@<uZ@  
package org.rut.util.algorithm.support; s%nx8"   
8_MR7'C1hi  
import org.rut.util.algorithm.SortUtil; y>vr Uxgo  
(u81p  
/** Tp.0@aC  
* @author treeroot r00 fvZyK  
* @since 2006-2-2 S x';Cj-  
* @version 1.0 "-Lbz)k  
*/ W9~vBU  
public class ShellSort implements SortUtil.Sort{ Y"&&=M#  
swvn*xr  
/* (non-Javadoc) Z8P{Cr~U9  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) **V^8'W<  
*/ ">}l8MA  
public void sort(int[] data) { I| qoHN,g  
for(int i=data.length/2;i>2;i/=2){ wRL=9/5(8  
for(int j=0;j insertSort(data,j,i); 0/d+26lR  
} 33lD`4i+  
} <wge_3W#  
insertSort(data,0,1); ~3 Y)o|D3  
} UdmYS3zs  
YFD'&N,sx  
/** 7z'l}*FRD  
* @param data K.?~@5%  
* @param j j4L ) D  
* @param i f%0^89)  
*/ "VxZnT  
private void insertSort(int[] data, int start, int inc) { vgSs]g  
int temp; @Iz vObK  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); %EYh5 W  
} P SDzs\s  
} CUgXpU*  
} G\S\Qe{P~  
O1pBr=+j+{  
} utxT$1iJn~  
zhbp"yju7  
快速排序: 5|!x0H;  
`y; s1nL  
package org.rut.util.algorithm.support; *a*\E R  
.L[WvAo  
import org.rut.util.algorithm.SortUtil; h_ef@ZwSw  
TJ3CXyRq  
/** o0b}:`  
* @author treeroot /238pg~Cw5  
* @since 2006-2-2 RKsr}-1 8  
* @version 1.0 $:kG>R@\t  
*/ \TS t  
public class QuickSort implements SortUtil.Sort{ 3!M;Z7qF]  
zXQ o pQ1  
/* (non-Javadoc) ">]v'h(s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [Q &{#%M  
*/ N"MuAUB:K  
public void sort(int[] data) { pqO}=*v@  
quickSort(data,0,data.length-1); 2Q`@lTUv  
} _4iTP$7[  
private void quickSort(int[] data,int i,int j){ %-!ruc"}  
int pivotIndex=(i+j)/2; TSXa#SKp  
file://swap |?6r&bT  
SortUtil.swap(data,pivotIndex,j); il `O*6-  
XQ&iV7   
int k=partition(data,i-1,j,data[j]); %pmowo~{  
SortUtil.swap(data,k,j); 5inmFT?9Z  
if((k-i)>1) quickSort(data,i,k-1); Ym+k \h  
if((j-k)>1) quickSort(data,k+1,j); m RB-}  
@BWroNg{  
} 0lR/6CB  
/** !>T.*8  
* @param data fyIL/7hzf4  
* @param i Xxcv 5.ug  
* @param j 3+_? /}<  
* @return y*A#}b*0  
*/ 6]^; s1!  
private int partition(int[] data, int l, int r,int pivot) { i,NU%be  
do{ 8`Fo^c=j  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); WJBi#(SY  
SortUtil.swap(data,l,r); BX&bhWYGFX  
} [uP_F,Y/  
while(l SortUtil.swap(data,l,r); yCZV:R;  
return l; *(@(9]B~  
} hM^#X,7  
cUssF%ud]  
} \D(6t!Ox  
GGk.-Ew@  
改进后的快速排序: U.<';fKnT  
J >Zd0Dn  
package org.rut.util.algorithm.support; /v"u4Ipj  
u9rlNmf$  
import org.rut.util.algorithm.SortUtil; _hyboQi  
{s!DRc]ln  
/** ZKTOif}  
* @author treeroot UA$ XjP  
* @since 2006-2-2 So?SBh1C  
* @version 1.0 |>a sGP  
*/ $wUFHEl  
public class ImprovedQuickSort implements SortUtil.Sort { (yWU9q)5  
GFasGHAw  
private static int MAX_STACK_SIZE=4096; u5^fiw]C  
private static int THRESHOLD=10; [_6_A O(Z  
/* (non-Javadoc) Ijq1ns_tx8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) UR6.zE4=_  
*/ 4]O{Nko)  
public void sort(int[] data) { W(ITs}O  
int[] stack=new int[MAX_STACK_SIZE]; z/u;afB9q  
{Y-<#U~iH  
int top=-1; "1>I/CM  
int pivot; !a?$  
int pivotIndex,l,r; o@j]yA.5)  
(3YCe{  
stack[++top]=0; xWlj.Tjt}  
stack[++top]=data.length-1; "']I.  
FI++A`  
while(top>0){ S05+G}[$  
int j=stack[top--]; BYuF$[3ya&  
int i=stack[top--]; X[b=25Ct  
=4cK9ac  
pivotIndex=(i+j)/2; 4hdxqI!y2  
pivot=data[pivotIndex]; T!e ]=  
)$K )`uqb  
SortUtil.swap(data,pivotIndex,j); =?>f[J5  
($EA/|z  
file://partition a5jc8S>  
l=i-1; g*69TqO^  
r=j; (@*[^@ipV  
do{ tcyami6D4  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); t%Hg8oya  
SortUtil.swap(data,l,r); xayo{l=uGv  
} = #]^H c  
while(l SortUtil.swap(data,l,r); <EFA^,3t%  
SortUtil.swap(data,l,j); ,K=\Y9l3  
8px@sXI*`  
if((l-i)>THRESHOLD){ ,>lOmyh  
stack[++top]=i; j\& `  
stack[++top]=l-1; *4#)or  
} ,.[T]37  
if((j-l)>THRESHOLD){ $Kgw6  
stack[++top]=l+1; S~L$sqt  
stack[++top]=j; rC.z772y%  
} {/`iZzPg  
I$!rNfrs  
} zhtNL_  
file://new InsertSort().sort(data); +-YMW;5  
insertSort(data); 7/QQ&7+NkS  
} 9 I>qD  
/** 9qS~-'&q#  
* @param data }&A!h  
*/ i"mN0%   
private void insertSort(int[] data) { i[1K~yXq:  
int temp; QcJ?1GwA"  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); =.`(KXT  
} .lnyn|MVb  
} S]&f+g}&w  
} sy`@q<h(  
$sK8l=#  
} 5v6 x  
HwTb753  
归并排序: 5/Viz`hsz  
g bDre~|  
package org.rut.util.algorithm.support; ~t7?5b?*\  
`|?K4<5|  
import org.rut.util.algorithm.SortUtil; )90Q  
3)\jUVuj  
/** U;QTA8|!&  
* @author treeroot dbM~41C6  
* @since 2006-2-2 ssaEAm:  
* @version 1.0 Ji4xor  
*/ Cw7 07  
public class MergeSort implements SortUtil.Sort{ h[~JCYA  
+(n&>7 5  
/* (non-Javadoc) ?O3E.!Q|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {a aI<u  
*/ <QbD ;(%  
public void sort(int[] data) { 2noKy}q  
int[] temp=new int[data.length]; -7E)u  
mergeSort(data,temp,0,data.length-1); zOJ4I^^  
} KMC]<  
rTTde^^_  
private void mergeSort(int[] data,int[] temp,int l,int r){ iAD'MB  
int mid=(l+r)/2; 6.%M:j0 0E  
if(l==r) return ; Xg+Eeg#  
mergeSort(data,temp,l,mid); kI7c22OJ  
mergeSort(data,temp,mid+1,r); kT6h}d^/^  
for(int i=l;i<=r;i++){ jb;!"HC  
temp=data; ]@E_Hx{S  
} mQEE?/xX;  
int i1=l; FYPv:k   
int i2=mid+1; ;e,_F/@`  
for(int cur=l;cur<=r;cur++){ q.sErr[zc  
if(i1==mid+1) :[![9JS/  
data[cur]=temp[i2++]; y4sKe:@2  
else if(i2>r) }-YM>q  
data[cur]=temp[i1++]; JSz;>  
else if(temp[i1] data[cur]=temp[i1++]; pG"pvfEl9f  
else <u "xHl8Io  
data[cur]=temp[i2++]; 4<%(Y-_sF  
} .. jc^'L  
} cbe&SxJ  
cGF_|1`  
} wEd+Ds]$  
sG-$d\ 1d  
改进后的归并排序: 8<V6W F`e  
L#U-d zy\  
package org.rut.util.algorithm.support; "&h{+DHS  
r{NCI  
import org.rut.util.algorithm.SortUtil; sBUK v(U)  
9*s''=  
/** bO8>w9MF  
* @author treeroot !O|d,)$q  
* @since 2006-2-2 a,eR'L<"*-  
* @version 1.0 p;8I@~dh  
*/ r?cDyQE  
public class ImprovedMergeSort implements SortUtil.Sort { 6.#5Ra   
+yC]f b  
private static final int THRESHOLD = 10; ,uz+/K%OA5  
Ot,_=PP  
/* T''PzY!Qf  
* (non-Javadoc) [l~Gwaul>  
* 7 2Zp%a=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )|52B;yZx  
*/ 8 ckcTNPu  
public void sort(int[] data) { Ltk'`  
int[] temp=new int[data.length]; UXs=7H".  
mergeSort(data,temp,0,data.length-1); |76G#K~<X  
} d}d1]@Y\  
R\i8O^[  
private void mergeSort(int[] data, int[] temp, int l, int r) { sGBm[lplz  
int i, j, k; .>X 0 $#  
int mid = (l + r) / 2; ;i;2cq  
if (l == r) |ZJ<J)y  
return; tccw0  
if ((mid - l) >= THRESHOLD) v w.rkAGY  
mergeSort(data, temp, l, mid); 2il)@&^  
else dSdP]50M  
insertSort(data, l, mid - l + 1); dWR-}>  
if ((r - mid) > THRESHOLD) MKdS_&F;~  
mergeSort(data, temp, mid + 1, r); !UzMuGj  
else 8%+F.r  
insertSort(data, mid + 1, r - mid); 3bWYRW  
B|fh 4FNy  
for (i = l; i <= mid; i++) { v d{`*|x  
temp = data; c@|!0 U%j  
} O {hM  
for (j = 1; j <= r - mid; j++) { !sTOo  
temp[r - j + 1] = data[j + mid]; W't?aj I|  
} K^z u{`S  
int a = temp[l]; i>*|k]  
int b = temp[r]; Xl/ SDm_p  
for (i = l, j = r, k = l; k <= r; k++) { rofGD9f   
if (a < b) { $Gy&  
data[k] = temp[i++]; kzkrvC+u  
a = temp; OuZPgN  
} else { i(Xz3L#(  
data[k] = temp[j--];  c6f=r  
b = temp[j]; tfAO#htq  
} v47S9Vm+  
} YK{E=<:  
} (GCeD-  
Wx8oTN  
/** /W|=Or2oR  
* @param data vC [uEx:  
* @param l `GpOS_;  
* @param i t| cL!  
*/ M+|J;caX  
private void insertSort(int[] data, int start, int len) { VG=mA4Dd  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); .#OD=wkN0  
} =xs"<Q*w>  
} ,N1I\f  
} _\ &N<  
} hI#1Ybl  
`;c{E%qeq  
堆排序: /19ZyQw9  
6OPYq*|  
package org.rut.util.algorithm.support; L|`(u  
e[($rsx  
import org.rut.util.algorithm.SortUtil; uE=pq<  
Chs#}=gzi  
/** q}+Fm?B   
* @author treeroot nYb{?{_ca8  
* @since 2006-2-2 + e3{J_  
* @version 1.0 DGJt$o=&@  
*/ #*tWhXU  
public class HeapSort implements SortUtil.Sort{ X4$86  
g;eoH  
/* (non-Javadoc) P 5_ l&  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0_f6Qrcj  
*/ 3*C|"|lJ  
public void sort(int[] data) { Tya[6b!8  
MaxHeap h=new MaxHeap(); 6V&HlJH  
h.init(data); c?t,,\o(}  
for(int i=0;i h.remove(); x!`~+f.6  
System.arraycopy(h.queue,1,data,0,data.length); 2'-!9!C  
} sKniqWi  
x@Ze%$'  
private static class MaxHeap{ '\wZKY VN  
hhr!FQ.+/  
void init(int[] data){ 2JR$  
this.queue=new int[data.length+1]; nl/~7({  
for(int i=0;i queue[++size]=data; A>B_~=  
fixUp(size); \1f&D!F]b  
} mGC!7^_D`  
} d+L!s7  
QT)5-Jy  
private int size=0; 1=Y pNXX  
Z[%vO?,  
private int[] queue; yk0#byW`  
g+pj1ycw/  
public int get() { ^77X?nDz=h  
return queue[1]; *R_mvJlT  
} O!ngQrI  
"8*5!anu-  
public void remove() { UC*\3:>'n  
SortUtil.swap(queue,1,size--); zcCGR Ee=  
fixDown(1); -P>up)p  
} U6Xi-@XP  
file://fixdown W</\F&  
private void fixDown(int k) { 7T/hmVi_  
int j; ATkx_1]KM-  
while ((j = k << 1) <= size) { D"ecwx{%;C  
if (j < size %26amp;%26amp; queue[j] j++; u8N"i),  
if (queue[k]>queue[j]) file://不用交换 )o N#%%SB<  
break; 3x3 =ke!  
SortUtil.swap(queue,j,k); sV$Zf `X)  
k = j; R$M>[Kjn  
} -esq]c%3  
} q 7aH=dhw  
private void fixUp(int k) { OD yKS;   
while (k > 1) { ;Sw % t(@  
int j = k >> 1; a8v9j3.  
if (queue[j]>queue[k]) y%@C-:  
break; p)YI8nW  
SortUtil.swap(queue,j,k); Cw,;>>Y_b<  
k = j; mY0FewwTy  
} "[Hn G(gA  
} M0Vs9K=  
*jrQ-'<T  
} 3.@ I\p}  
oQ/ Dg+Xp  
} U#' WP  
L3|~ i&k  
SortUtil: 9Pjw< xt  
B4{clI_i  
package org.rut.util.algorithm; |\6Ff/O  
uj^l&"  
import org.rut.util.algorithm.support.BubbleSort; df@G+v0_1  
import org.rut.util.algorithm.support.HeapSort; u[+/WFH  
import org.rut.util.algorithm.support.ImprovedMergeSort; U "kD)\  
import org.rut.util.algorithm.support.ImprovedQuickSort; 'l&bg8K9  
import org.rut.util.algorithm.support.InsertSort; /;9iDjG  
import org.rut.util.algorithm.support.MergeSort; h-6zQs   
import org.rut.util.algorithm.support.QuickSort; D{G~7P\.  
import org.rut.util.algorithm.support.SelectionSort; zA%$l&QN]  
import org.rut.util.algorithm.support.ShellSort; "fZWAGDBO\  
`R@b`3*%v  
/** aZB$%#'vR  
* @author treeroot o@ W:PmKW  
* @since 2006-2-2 T.GB *  
* @version 1.0 AH'4k(-  
*/ fUa[3)I  
public class SortUtil { 4elA<<  
public final static int INSERT = 1; z=pGu_`2  
public final static int BUBBLE = 2; JH`oa1 b  
public final static int SELECTION = 3; < +X,oxg  
public final static int SHELL = 4; la{Iqm{i  
public final static int QUICK = 5; GPLq$^AH  
public final static int IMPROVED_QUICK = 6; >A ?{cbJ  
public final static int MERGE = 7; &N:`Rler  
public final static int IMPROVED_MERGE = 8; NhF<2[mt  
public final static int HEAP = 9; (hn;C>B  
i2 7KuPjC  
public static void sort(int[] data) { &)GlLpaT  
sort(data, IMPROVED_QUICK); p$_X\,F  
} EU4j'1!&g<  
private static String[] name={ Z[G:  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" >NjgLJh  
}; xXfFi5Eom  
B~7]x;8h  
private static Sort[] impl=new Sort[]{ X\HP&;Wd  
new InsertSort(), >@uFye$  
new BubbleSort(), Yu_` >so  
new SelectionSort(), :!<U"AC  
new ShellSort(), J8#3?Lp  
new QuickSort(), `~+[pY 1r  
new ImprovedQuickSort(), YT\.${N  
new MergeSort(), aa,^+^J  
new ImprovedMergeSort(), #xfPobQ>il  
new HeapSort() IfzZ\x .  
}; KvkU]s_  
0S$6j-"  
public static String toString(int algorithm){ X}G3>HcP  
return name[algorithm-1]; |7@@~|A  
} [28Vf"#]  
x{I, gu|+  
public static void sort(int[] data, int algorithm) { IXof- I%8  
impl[algorithm-1].sort(data); =q?sB]n  
} b_>x;5k  
]D&\|,,(  
public static interface Sort { | rwx; +  
public void sort(int[] data); m`6=6(_p  
} rkWiGiisM  
;Wedj\Kkp  
public static void swap(int[] data, int i, int j) { #v}pn2g%>  
int temp = data; EVW\Z 2N.  
data = data[j]; *TC#|5  
data[j] = temp; %WAaoR&u  
} W:V.\  
} rhj_cw  
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:
3+5=?,请输入中文答案:八 正确答案:八