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
  • 7644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。 oq<#  
插入排序: 7y`~T+  
TT&!WbA-Hk  
package org.rut.util.algorithm.support; /3Gv51'  
86} rz  
import org.rut.util.algorithm.SortUtil; ? 8!N{NV  
/** &k{@:z  
* @author treeroot ;NPb  
* @since 2006-2-2 nocH~bAf2  
* @version 1.0 FRF}V@~  
*/ /iQ>he~fy  
public class InsertSort implements SortUtil.Sort{ u})JQ<|  
XKK*RVs#  
/* (non-Javadoc) BR%:`uiQ<  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) t[ MRyi)LF  
*/ BzUx@,  
public void sort(int[] data) { =gqZ^v&5U  
int temp; -T(V6&'Qi  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); nb!m>0*/  
} J8D-a!  
} 4%{m7CK}  
} _0`O}  
DpR%s",Q  
} d16 PY_  
?d%}K76V<  
冒泡排序: zc(7p;w#p  
cK } Qu  
package org.rut.util.algorithm.support; n#fg7d%  
$7*Ml)H!9  
import org.rut.util.algorithm.SortUtil; m1hf[cg  
}bTMeCgI  
/** 3IxT2@H)  
* @author treeroot  h 2zCX  
* @since 2006-2-2 ij),DbWd  
* @version 1.0 ro{MD s  
*/ "869n37  
public class BubbleSort implements SortUtil.Sort{ o_5@R+&  
 Ui.F<,E  
/* (non-Javadoc) G~Sfpf  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) td~3N,S  
*/ hg~fFj3ST  
public void sort(int[] data) { 2S4z$(x3  
int temp; Z-?9F`}  
for(int i=0;i for(int j=data.length-1;j>i;j--){ HKwGaCj`  
if(data[j] SortUtil.swap(data,j,j-1);  ]gW J,  
} >seB["C  
} ;a`X|N9  
} 2o/`8+eJu  
} ,d+mT^jN  
`<n:D`{dZ  
} L9@jmh*E  
mI%/k7:sf  
选择排序: v#FUD-Z  
_u>>+6,p  
package org.rut.util.algorithm.support; qg/5m;U  
h(-&.Sm")H  
import org.rut.util.algorithm.SortUtil; O~el2   
p rgjU  
/** U:9vjY  
* @author treeroot ? h%+2  
* @since 2006-2-2 4/?Zp4g  
* @version 1.0 C.-a:oQ[  
*/ bB-v ar  
public class SelectionSort implements SortUtil.Sort { YP,PJnJU8  
vNbA/sM  
/* W\7*T1TDj  
* (non-Javadoc) `uHpj`EU  
* P}`1#$  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h :R)KM  
*/ G6 5N:  
public void sort(int[] data) { "S:N- Tf%U  
int temp; . $YF|v[=  
for (int i = 0; i < data.length; i++) { p%1m&/ `F  
int lowIndex = i; nif' l/@"  
for (int j = data.length - 1; j > i; j--) { #7h fEAk  
if (data[j] < data[lowIndex]) { %LHV0u  
lowIndex = j; V?BVk8D};  
} iGLYM-  
} j:3Hm0W3  
SortUtil.swap(data,i,lowIndex); /H@")je  
} :j<JZs>`R  
} [uQZD1<q  
GuvF   
} :w%b w\}  
{+9\o ~  
Shell排序: M) XQi/  
`0|&T;7  
package org.rut.util.algorithm.support; Eo&qc 17)`  
D ;$+]2  
import org.rut.util.algorithm.SortUtil; }tO<_f))  
g8A{aHb1}  
/** 9mphj)`d;#  
* @author treeroot y4rJ-  
* @since 2006-2-2 Q$/FgS  
* @version 1.0 3MJWCo-[  
*/ *[:CbFE0y  
public class ShellSort implements SortUtil.Sort{ %uqD\`-  
q<[ke   
/* (non-Javadoc) +{!t~BW  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) DeQ'U!?+N  
*/ T ) f_W  
public void sort(int[] data) { P Xn>x8z  
for(int i=data.length/2;i>2;i/=2){ aw%vu  
for(int j=0;j insertSort(data,j,i); L00 ;rTs>  
} /M*\t.[ 46  
} o\;"|O}  
insertSort(data,0,1); x][9ptr h  
} wDMB  
)X!DCL:16  
/** JX$NEq(  
* @param data ?WtG|w  
* @param j }rA+W-7  
* @param i ^npS==Y]!.  
*/ SOQ-D4q  
private void insertSort(int[] data, int start, int inc) { 5J\|gZQF  
int temp; f(s3TLM  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); UEQ'D9  
} {G1aAM\Hz  
} <Bb<?7q$ld  
} mc=! X  
IL2Gsj)M  
} #JR,C -w  
;n7|.O]*  
快速排序:  1C,C)  
K9O,7h:x  
package org.rut.util.algorithm.support; VfA5r`^  
pg}+lYGP  
import org.rut.util.algorithm.SortUtil; r|\'9"@  
+=*m! 7Mr  
/** _QMHPRELk  
* @author treeroot : Nj`_2  
* @since 2006-2-2 ['Y+z2k  
* @version 1.0 5ih"Nds[H  
*/ & A9A#It  
public class QuickSort implements SortUtil.Sort{ )lDIzLp  
q4.dLU,1  
/* (non-Javadoc) HLoQ}oK|K  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) T:g4D z*2\  
*/ _]D#)-uv}C  
public void sort(int[] data) { `k}l$ih`X  
quickSort(data,0,data.length-1); PZ!dn%4jy  
} [#>$k 6F*  
private void quickSort(int[] data,int i,int j){ `l gjw=  
int pivotIndex=(i+j)/2; ULNAH`{D  
file://swap 9"HmHy&:E  
SortUtil.swap(data,pivotIndex,j); 8pq-nuf|K  
ZH;y>Z  
int k=partition(data,i-1,j,data[j]); g",wkO|  
SortUtil.swap(data,k,j); NHFEr  
if((k-i)>1) quickSort(data,i,k-1); CmJ?_>  
if((j-k)>1) quickSort(data,k+1,j); =,C9O  
AJ#m6`M+EK  
} <nb3~z1  
/** ,\S pjE  
* @param data }dd k}wga  
* @param i K{ zCp6  
* @param j @m/;ZQ  
* @return >9.5-5"   
*/ h5&/hBN  
private int partition(int[] data, int l, int r,int pivot) { &PRx,G5  
do{ ?y>Y$-v/C  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Y(hW(bd;  
SortUtil.swap(data,l,r); @ kJ0K  
} (@KoqwVWc  
while(l SortUtil.swap(data,l,r); bSrRsgKvT  
return l; 2<[ eD`u  
} ^nHB1"OCV  
2/yXY_L  
} HBh` 2Q  
atLV`U&t  
改进后的快速排序: m/YH^N0  
^s^ JzFw  
package org.rut.util.algorithm.support; 5!'R'x5e  
p{ @CoOn  
import org.rut.util.algorithm.SortUtil; fJ)N:q`  
lX98"}  
/** y:[BP4H?y  
* @author treeroot }O,U2=Hw`]  
* @since 2006-2-2 5:Yck<  
* @version 1.0 [ME}Cv`?<E  
*/ dSOlD/c  
public class ImprovedQuickSort implements SortUtil.Sort { )p$\gwr=2  
uQGz;F x  
private static int MAX_STACK_SIZE=4096; *2JH_Cj`  
private static int THRESHOLD=10; g d337jw  
/* (non-Javadoc) "El^38Ho  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q7,EY /  
*/ ''#p47$8<d  
public void sort(int[] data) { )t|^Nuj8  
int[] stack=new int[MAX_STACK_SIZE]; SU?wFCGT%  
:8p&#M  
int top=-1; az0cS*@  
int pivot; ![^EsgEB*  
int pivotIndex,l,r; OSp?okV  
=2^Vgc  
stack[++top]=0; 5^)?mA  
stack[++top]=data.length-1; 8AT;8I<K  
ds- yif6   
while(top>0){ m)s xotgXf  
int j=stack[top--]; w[ Axs8N'  
int i=stack[top--]; {mNdL J  
12idM*  
pivotIndex=(i+j)/2; l iw,O 6  
pivot=data[pivotIndex]; ]#F q>E  
l`SK*Bm~<  
SortUtil.swap(data,pivotIndex,j); `SCy<w3$+[  
KwS`3 6:  
file://partition (nGkZ}p  
l=i-1; "37*A<+f  
r=j; 5v"Y\k+1  
do{ 5N\+@grp  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); r,5-XB  
SortUtil.swap(data,l,r); _*Pfp+if  
} g;8M<`qvf  
while(l SortUtil.swap(data,l,r); |VK:2p^ u  
SortUtil.swap(data,l,j); Sa Cx)8ul0  
JfMJF[Mb  
if((l-i)>THRESHOLD){ GE@uO J6H  
stack[++top]=i; */nuv k  
stack[++top]=l-1; g^jJ8k,7(  
} $57\u/(  
if((j-l)>THRESHOLD){ TZ'aNcGg  
stack[++top]=l+1; [a@ B =E  
stack[++top]=j; {ih:FcI  
} `qE4U4  
+$PFHXB  
}  =^Th[B  
file://new InsertSort().sort(data); ZW>o5x__b  
insertSort(data); [UoqIU  
} hcyn  
/** EY~7oNfc`R  
* @param data I]jX7.fx  
*/ (-\]A|  
private void insertSort(int[] data) { 0(8gQ 2n  
int temp; BhLZ7*  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); :9`qogF>  
} Ir/:d]N*  
} )6=gooe]  
} VG)="g[%)  
P{cos&X|  
} >yKpM }6l{  
.a,(pq Jg  
归并排序: =:gjz4}_8  
)pS8{c)E  
package org.rut.util.algorithm.support; 3za`>bUN  
E5gl^Q?Z  
import org.rut.util.algorithm.SortUtil; .fEw k  
l<xFnj  
/** \45(#H<$  
* @author treeroot IcFK,y%1  
* @since 2006-2-2 [/OQyb4F<  
* @version 1.0 s`c?:  
*/ Vv7PCaq  
public class MergeSort implements SortUtil.Sort{ \5hw9T&[B  
]RD5Ex!K?  
/* (non-Javadoc) +i=p5d5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) z h%qS~8Yv  
*/ TV=c,*TV  
public void sort(int[] data) { vLDi ;  
int[] temp=new int[data.length]; X`1p'JD  
mergeSort(data,temp,0,data.length-1); *H" aOT^{  
} 6vobta^w  
6V2j*J  
private void mergeSort(int[] data,int[] temp,int l,int r){ .S!-e$EJ  
int mid=(l+r)/2; 2 .f|2:I  
if(l==r) return ; zQc"bcif5(  
mergeSort(data,temp,l,mid); io2@}xZF  
mergeSort(data,temp,mid+1,r); -~O/NX  
for(int i=l;i<=r;i++){ G9Qe121m  
temp=data; Pm^lr!3p  
} s}(X]Gx1  
int i1=l; PN &|8_  
int i2=mid+1; \Y e%o}.{  
for(int cur=l;cur<=r;cur++){ O]{*(J/t  
if(i1==mid+1) S}cF0B1E*  
data[cur]=temp[i2++]; Qh-4vy =r  
else if(i2>r) ^|?1_r  
data[cur]=temp[i1++]; CH;;V3  
else if(temp[i1] data[cur]=temp[i1++]; J8;Okzb!L  
else dy:d=Z  
data[cur]=temp[i2++]; t`u!]DHv  
} I4il R$jg  
} /DO'IHC.o  
4j3oT)+8  
} GN%(9N'W  
V]c5 Z$Bd  
改进后的归并排序: L~eAQR  
LgHJo-+>  
package org.rut.util.algorithm.support; "'A"U  
c7qwNs*f  
import org.rut.util.algorithm.SortUtil; 54q3R`y  
C).2gQ G  
/** zu<3^=3  
* @author treeroot )ooWQ-%P  
* @since 2006-2-2 C3S`}o.  
* @version 1.0 e<5Y94YE  
*/ q# vlBL  
public class ImprovedMergeSort implements SortUtil.Sort { bx>i6 R2  
>Z\BfH  
private static final int THRESHOLD = 10; Bq!cY Wj  
L'9N9CR{i  
/* XP;x@I#l  
* (non-Javadoc) Y {c5  
* Wsm`YLYkt!  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) cOku1 g8  
*/ ]W) jmw'mo  
public void sort(int[] data) { m;/i<:`  
int[] temp=new int[data.length]; < y>:B}9'  
mergeSort(data,temp,0,data.length-1); ~m`!;rE  
} }.{}A(^YR  
EXpSh}  
private void mergeSort(int[] data, int[] temp, int l, int r) { I]uhi{\C  
int i, j, k; >V!LitdJ  
int mid = (l + r) / 2; 5I,$EGG  
if (l == r) )|]Z>>%t  
return; (ZPXdr  
if ((mid - l) >= THRESHOLD) OD+5q(!"a  
mergeSort(data, temp, l, mid); J70D+  
else a$}mWPp+f  
insertSort(data, l, mid - l + 1); v8@eW.I1  
if ((r - mid) > THRESHOLD) z[&s5"  
mergeSort(data, temp, mid + 1, r); )saR0{e0N  
else 9?`RR/w  
insertSort(data, mid + 1, r - mid); QzthTX<  
JBcY!dy-d  
for (i = l; i <= mid; i++) { 77Q}=80GU;  
temp = data; \G;CQV#{9  
} `ROEV~  
for (j = 1; j <= r - mid; j++) { 8tQ|-l *  
temp[r - j + 1] = data[j + mid]; "mZ.V  
} =! m JG  
int a = temp[l]; SS8ocGX  
int b = temp[r]; Z> 74.r  
for (i = l, j = r, k = l; k <= r; k++) { DQgH_!  
if (a < b) { p4mY0Y]mP  
data[k] = temp[i++]; DO^y;y>  
a = temp; NWKi ()nA%  
} else { jA`a/v Wu  
data[k] = temp[j--]; KQ)T(mIqp  
b = temp[j]; F6dr  
} 6?SFNDQ"C  
} Qpu3(`d<  
} !N~*EI$  
\ 4gXY$`@  
/** -g~~]K%  
* @param data IZ~.{UQ  
* @param l /`+7_=-  
* @param i l)8sw=  
*/ .#!mDlY;  
private void insertSort(int[] data, int start, int len) { 9X]f[^  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); ;[Tyt[  
} C1QWU5c v  
} {tt$w>X  
} kxo.v|)8  
} p\S8oHWe  
(~#G'Hd  
堆排序: 7a<_BJXx  
c{>|o  
package org.rut.util.algorithm.support; 3*WS"bt  
3w'W~  
import org.rut.util.algorithm.SortUtil; ;0j*>fb\q7  
u^=@DO'  
/** 8^X]z|2  
* @author treeroot Mi74Xl i  
* @since 2006-2-2 M=%!IT  
* @version 1.0 Wc;+2Hl[@  
*/ sqG`"O4W  
public class HeapSort implements SortUtil.Sort{ DHzkRCM  
kfCKhx   
/* (non-Javadoc) $4Y&j}R  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) mP!N<K  
*/ *Sb2w*c>  
public void sort(int[] data) { Z| L2oc e  
MaxHeap h=new MaxHeap(); mV zu~xym  
h.init(data); O+FBQiv  
for(int i=0;i h.remove(); )ddsyFGW  
System.arraycopy(h.queue,1,data,0,data.length); XRa#2 1pQ  
} 4Hd Si  
o<J5!  
private static class MaxHeap{ ;[~^( . f  
UE7'B?  
void init(int[] data){ ysVi3eq  
this.queue=new int[data.length+1]; H),RA]S  
for(int i=0;i queue[++size]=data; KZ3B~#oQ  
fixUp(size); 4\1;A`2%0  
} K;C_Z/<%  
} 8[HZ@@  
_BwKY#09Zp  
private int size=0; jGiw96,Y  
|."G?*  
private int[] queue; H:Lt$  
1p=&WM  
public int get() { DZP*x  
return queue[1]; Y?t2,cm   
} l $w/Fz  
J {!'f| J  
public void remove() { 2_N/wR#=&  
SortUtil.swap(queue,1,size--); J7m`]!*t  
fixDown(1); o}W;Co  
} B~rU1Y)  
file://fixdown @it/$>R^)  
private void fixDown(int k) { {\Ys@FF  
int j; NQ{-&#@/v  
while ((j = k << 1) <= size) { R9r)C{63S&  
if (j < size %26amp;%26amp; queue[j] j++;  feN!_ -  
if (queue[k]>queue[j]) file://不用交换 $^IjFdD  
break; yF;?Hg  
SortUtil.swap(queue,j,k); GVZTDrC  
k = j; vlAy!:CV  
} H\d;QN9Q;  
} :ovt?q8">  
private void fixUp(int k) { ,@479ZvvR3  
while (k > 1) { vgN@~Xa  
int j = k >> 1; 4`6< {  
if (queue[j]>queue[k]) u9,=po=+7f  
break; 18rp; l{  
SortUtil.swap(queue,j,k); c l9$g7  
k = j; S<9gyW  
} @x*.5:[  
} N:7.:Yw  
1[px`%DR~  
} s*eyTm  
eZ A6D\  
} r\B"?oqC  
gz#+  
SortUtil: 7<vy;"wB  
8M~u_`6  
package org.rut.util.algorithm; 1NW>wo  
ePi Z  
import org.rut.util.algorithm.support.BubbleSort; 8a?IC|~Pz  
import org.rut.util.algorithm.support.HeapSort; 0+rW;-_(  
import org.rut.util.algorithm.support.ImprovedMergeSort; k}#@8n|b  
import org.rut.util.algorithm.support.ImprovedQuickSort; K` 2i  
import org.rut.util.algorithm.support.InsertSort; Vl-D<M+i h  
import org.rut.util.algorithm.support.MergeSort; !%X>rGkc  
import org.rut.util.algorithm.support.QuickSort; b13nE .  
import org.rut.util.algorithm.support.SelectionSort; ["<5?!bU  
import org.rut.util.algorithm.support.ShellSort; waBRQh  
M*v^N]>"G  
/** 7WXiG0  
* @author treeroot 75<el.'H  
* @since 2006-2-2 5%'o%`?i  
* @version 1.0 _@7(g(pY 3  
*/ >}mNi:6xq  
public class SortUtil { % /~os2R  
public final static int INSERT = 1; S3nB:$_-;  
public final static int BUBBLE = 2; 9#Z zE/  
public final static int SELECTION = 3; r!CA2iK`  
public final static int SHELL = 4; 87R%ke  
public final static int QUICK = 5; w' .'Yu6  
public final static int IMPROVED_QUICK = 6; LE<:.?<Z-  
public final static int MERGE = 7;  MK<  
public final static int IMPROVED_MERGE = 8; :{x!g6bK@  
public final static int HEAP = 9; ' l|41wxk  
LAj}kW~  
public static void sort(int[] data) { |C^ c0  
sort(data, IMPROVED_QUICK); 0kkRK*fp}x  
} /5&3WG&<u  
private static String[] name={ Pv^(Q ]  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" Q S5dP  
}; fLLnf].O  
]r"31.w(  
private static Sort[] impl=new Sort[]{ .i1jFwOd|G  
new InsertSort(), USlF+RY@3L  
new BubbleSort(), U+(Z#b(Q  
new SelectionSort(), ?ykVfO'  
new ShellSort(), [Od>NO,n+]  
new QuickSort(), 5cPSv?x^F@  
new ImprovedQuickSort(), NEjPU#@c  
new MergeSort(), R>Z,TQU  
new ImprovedMergeSort(), b #o}=m  
new HeapSort() =x|##7  
}; Fr1;)WV  
>xhd[  
public static String toString(int algorithm){ rD:gN%B=  
return name[algorithm-1]; Km|9Too  
} )$2%&9b  
2+c>O%L  
public static void sort(int[] data, int algorithm) { Jnh;;<  
impl[algorithm-1].sort(data); 0"wbcAh)  
} S3%.-)ib  
DDqC}l_  
public static interface Sort { tJ(c<:zD  
public void sort(int[] data); -D.B J(  
} YyQf  
pgLzFY['  
public static void swap(int[] data, int i, int j) { y9l#;<b  
int temp = data; `dG.L  
data = data[j]; +X2 i/}  
data[j] = temp; ];d5X  
} /-G qG)PX  
} G#9o?  
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