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
  • 9078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。 F(5(cr 7K  
插入排序: $v#\bqY  
QsN%a>t  
package org.rut.util.algorithm.support; wQnW2)9!  
}qk8^W{  
import org.rut.util.algorithm.SortUtil; %~$P.Zh  
/** e 2@{Ab  
* @author treeroot i!U,qV1  
* @since 2006-2-2 W-ctx"9DS  
* @version 1.0 k>ERU]7[  
*/ pod=|(c  
public class InsertSort implements SortUtil.Sort{ foi@z9  
"PI]k  
/* (non-Javadoc) 6(FkcC$G  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) q!sazVaDp  
*/ =D@+_7\?  
public void sort(int[] data) { 6y4&nTq[  
int temp; x9NcIa9  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); T]#S=]G  
} kg@Okz N%  
} (C=.&',P  
} ohod)8  
]l~TI8gC  
} S{sJX5R;  
-#e3aXe  
冒泡排序: |d@%Vb_  
 #"6O3.P  
package org.rut.util.algorithm.support; c[h{C!d1  
DviRD[+q"  
import org.rut.util.algorithm.SortUtil; X`n)]~  
qMj'%5/  
/** Ew9\Y R}  
* @author treeroot <EHgPlQn  
* @since 2006-2-2 ioZ{2kK  
* @version 1.0 X,Q'Xe /  
*/ 1_aUU,|.  
public class BubbleSort implements SortUtil.Sort{ Y<"BhE  
;B,6v P#  
/* (non-Javadoc) n*Q~<`T  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q=+*OQV29  
*/ l[G&=/R@H  
public void sort(int[] data) { h:J0d~u  
int temp; h yPVt6Gkj  
for(int i=0;i for(int j=data.length-1;j>i;j--){ v*pN~}5  
if(data[j] SortUtil.swap(data,j,j-1); f2abee  
} {&bjjM  
} V2&O]bR  
} zK5/0zMZ  
} ZYi."^l  
ev$\Ns^g$3  
} XlPi)3m4/S  
^^O @ [_  
选择排序: 5Wyo!pRi  
zHEH?xZ6sD  
package org.rut.util.algorithm.support; [lmghI!  
WlJ $p$I`  
import org.rut.util.algorithm.SortUtil; zFn!>Tqe  
5Q9nJC{'NN  
/** Tf|?j=f  
* @author treeroot V^  
* @since 2006-2-2 !(-lY(x  
* @version 1.0 gYtv`O  
*/ *j9hjq0j  
public class SelectionSort implements SortUtil.Sort { Hw(_l,Xf  
"k0bj>  
/* =FB[<%  
* (non-Javadoc) l[_ y|W5  
* a&?SRC'x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `~0^fSww  
*/ Vg>\@ C .s  
public void sort(int[] data) { #%=6DHsK  
int temp; &"h 9Awn2  
for (int i = 0; i < data.length; i++) { ,k,RXgQ  
int lowIndex = i; e?V7<7$  
for (int j = data.length - 1; j > i; j--) { TVVr<r  
if (data[j] < data[lowIndex]) { ^iHwv*ss  
lowIndex = j; t,f)!D$  
} 'UW(0 PXw  
} q$<M2  
SortUtil.swap(data,i,lowIndex); \$iU#Z  
} _~{Nco7T  
} !ULU#2'1  
eL vbPE_  
} 6ojEEM  
E6=JL$"  
Shell排序: sv g`s,g  
3>+9Rru  
package org.rut.util.algorithm.support; r&MHww1i  
hJ>Kfm  
import org.rut.util.algorithm.SortUtil; p H5iv>H  
|3a1hCxt  
/** Dm")\"5\?  
* @author treeroot _N-.=86*  
* @since 2006-2-2 !bPsJbIo>  
* @version 1.0 gc y'"d"  
*/ B*zR/?U^  
public class ShellSort implements SortUtil.Sort{ HZG^o^o1l+  
dv_& ei  
/* (non-Javadoc) m$bX;F}T  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) v}Gpw6   
*/ 1&Fty'p  
public void sort(int[] data) { 4GiHp7Y&A  
for(int i=data.length/2;i>2;i/=2){ sp2"c"_+  
for(int j=0;j insertSort(data,j,i); :FUefW m  
} }Sxuc/%:  
} 0G`FXj}L  
insertSort(data,0,1); sp/l-a  
} ^"U-\cx  
_4#8o\  
/** IQ5H`o?[B  
* @param data cEP!DUo  
* @param j cIm_~HH  
* @param i (Ov{gj^  
*/ )t$<FP  
private void insertSort(int[] data, int start, int inc) { /YyimG7  
int temp; _D{V(c<WD  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); \BoRYb9h  
} M<AjtDF%  
} ;T9u$4 <  
} tR! !Q  
uA'S8b%C  
} 3k#?E]'  
ae&i]K;  
快速排序: TIs~?wb$  
TpHvZ]c  
package org.rut.util.algorithm.support; DaA9fJ7a   
')bas#=uP  
import org.rut.util.algorithm.SortUtil; Rr9K1io$)  
c Nhy.Z~D  
/** xb N)z  
* @author treeroot Eeumi#$Z   
* @since 2006-2-2  .IO_&^  
* @version 1.0 k^JV37;bl  
*/ c]eDTbXd  
public class QuickSort implements SortUtil.Sort{ !4"!PrZDB  
zq:+e5YT?T  
/* (non-Javadoc) 0ESxsba  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) e%Sw(=a  
*/ 4(h19-V  
public void sort(int[] data) { P0Q]Ds|  
quickSort(data,0,data.length-1); gB&8TE~Y  
} t#fbagTON  
private void quickSort(int[] data,int i,int j){ k3pY3TA@w+  
int pivotIndex=(i+j)/2; 0wh4sKm[X  
file://swap d){o#@  
SortUtil.swap(data,pivotIndex,j); YqJ `eLu  
Gr&)5hm$  
int k=partition(data,i-1,j,data[j]); W N5`zD$  
SortUtil.swap(data,k,j); b3h3$kIYN  
if((k-i)>1) quickSort(data,i,k-1); p4Wy2.&Q  
if((j-k)>1) quickSort(data,k+1,j); c}QWa"\2n  
lBYc(cr  
} feSj3,<!  
/** H}nPaw]G  
* @param data F+c4v A})  
* @param i H*gX90{!2  
* @param j  3ih3O  
* @return 8zOoVO  
*/ &B3[:nS2  
private int partition(int[] data, int l, int r,int pivot) { _#jR6g TY  
do{ Dc2U+U(J  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); _ $ Wj1h  
SortUtil.swap(data,l,r); 75^U<Hz-3{  
} 9{A[n}  
while(l SortUtil.swap(data,l,r); ^|P/D  
return l; R#n!1~ (  
} prdlV)LTpY  
l{2Y[&%  
} RF#S=X6  
T[?toqkD>z  
改进后的快速排序: P 2j"L#%  
<{z*6FM!'  
package org.rut.util.algorithm.support; AjW5H*  
y<h~jz#hkq  
import org.rut.util.algorithm.SortUtil; -MCDX^ >P  
dr54 D  
/** oB$P6   
* @author treeroot o>#ue<Bc6  
* @since 2006-2-2 "B$r{ vG  
* @version 1.0 q JdC5z\[  
*/ ,4OH9 -Q1  
public class ImprovedQuickSort implements SortUtil.Sort { ]1^F  
dYEsSFB m  
private static int MAX_STACK_SIZE=4096; f4b`*KGf  
private static int THRESHOLD=10; snH9@!cG8  
/* (non-Javadoc) 77]6_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HW@r1[Y  
*/ pZ IDGy=~  
public void sort(int[] data) { 3YFbT Z  
int[] stack=new int[MAX_STACK_SIZE]; ^z _m<&r  
#},4m  
int top=-1; kT=KxS{  
int pivot; R)>F*GsR  
int pivotIndex,l,r; .$rt>u,8<  
\i2S'AblYq  
stack[++top]=0; =!~6RwwwY  
stack[++top]=data.length-1; B5pWSS  
8+?|4'\`  
while(top>0){ {SQ#n@Q&$  
int j=stack[top--]; w]% |^:  
int i=stack[top--]; /'ukeK+'  
G2,9$8qE  
pivotIndex=(i+j)/2; H2cY},  
pivot=data[pivotIndex]; wH<'*>/  
8iIz!l%O  
SortUtil.swap(data,pivotIndex,j); k>'c4ay290  
3jJd)C R  
file://partition ` 465 H  
l=i-1; Gy3t   
r=j; -Y{=bZS u  
do{ pSPVY2qKX  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); hd'JXKMy  
SortUtil.swap(data,l,r); m|c5X)}-  
} )[Bl3+'  
while(l SortUtil.swap(data,l,r); uQ_s$@brI  
SortUtil.swap(data,l,j); *%(BE*C}  
zYz0R:@n+  
if((l-i)>THRESHOLD){ 0C,2gcq  
stack[++top]=i; M?nYplC  
stack[++top]=l-1; ,~TV/l<  
} ({5`C dVi  
if((j-l)>THRESHOLD){ `El)uTnuZ[  
stack[++top]=l+1; T+q3]&  
stack[++top]=j; @j{n V@|  
} i:@n6GW+iw  
"h84D&V  
} oA;> z  
file://new InsertSort().sort(data); |_H{ B+.  
insertSort(data); O^_$cq  
} L+]|-L`S  
/** 9P)28\4  
* @param data W,53|9b@  
*/ `:4bg1u  
private void insertSort(int[] data) { k/`WfSM\.  
int temp; <jk.9$\$A  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 6%^9`|3  
} Vi5&%/Y  
} R|,F C'  
} $Rd]e C  
R oY"Haa  
} XSv)=]{  
jW< aAd  
归并排序: ?!{nNJ  
w%NT 0J  
package org.rut.util.algorithm.support; Ia'm9Z*  
8euh]+  
import org.rut.util.algorithm.SortUtil; O\5q_>]  
?04$1n:  
/** WNa#X]*E)  
* @author treeroot /DC\F5 G  
* @since 2006-2-2 X^% E"{!nU  
* @version 1.0 Aq5@k\[  
*/ %ylpn7I\6  
public class MergeSort implements SortUtil.Sort{ m`Dn R`+  
Ev)aXP  
/* (non-Javadoc) {T=rsPp<@  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )yyS59s  
*/ ;/- X;!a>  
public void sort(int[] data) { K;NaiRP#k  
int[] temp=new int[data.length]; N =0R6{'  
mergeSort(data,temp,0,data.length-1); H"n@=DMLm  
} q_gsYb  
,<cF<9h  
private void mergeSort(int[] data,int[] temp,int l,int r){ &# w~S~  
int mid=(l+r)/2; 1^HUu"Kt  
if(l==r) return ; Zi4Ektj2  
mergeSort(data,temp,l,mid); wfJ[" q   
mergeSort(data,temp,mid+1,r); n#fc=L1U  
for(int i=l;i<=r;i++){ &58TX[#  
temp=data; )`V__^  
} Q|1X|_hs  
int i1=l; E{#Y=  
int i2=mid+1; J nzI- y  
for(int cur=l;cur<=r;cur++){ )tB1jcI;  
if(i1==mid+1) f|cF [&wo  
data[cur]=temp[i2++]; #ozQF~  
else if(i2>r) "?Mf%u1R  
data[cur]=temp[i1++]; 6j{O/  
else if(temp[i1] data[cur]=temp[i1++]; D,)^l@UP  
else 8ba*:sb  
data[cur]=temp[i2++]; (+=TKI<=  
} SaA9)s  
} LqOjVQxz  
rjJ-ZRs\  
} <zdo%~ba  
P?Fm<s:  
改进后的归并排序: s(3iGuT  
gL-\@4\wc  
package org.rut.util.algorithm.support; KDW=x4*p  
TXDb5ZCzM  
import org.rut.util.algorithm.SortUtil; =w/S{yC  
%x5zs ]4^  
/** ,VTX7vaH  
* @author treeroot j}dev pO  
* @since 2006-2-2 VJ'bS9/T  
* @version 1.0 N:yyDeGyW  
*/ 9tZ+ ?O5  
public class ImprovedMergeSort implements SortUtil.Sort { 5%Xny8 ]|D  
(qky&}H  
private static final int THRESHOLD = 10; r!,/~~m T  
$>M A  
/* 3~uWrZ.u  
* (non-Javadoc) _hy<11S;  
* rdY/QvP0=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -1P*4H2a  
*/ ^1 P@BRh  
public void sort(int[] data) { n!>#o 1Qr  
int[] temp=new int[data.length]; ?4 &C)[^  
mergeSort(data,temp,0,data.length-1); 1MF0HiC  
} g12mSbf=9  
W2CQk  
private void mergeSort(int[] data, int[] temp, int l, int r) { 7Hm/ g  
int i, j, k; _);;@T  
int mid = (l + r) / 2; 4qc 0QA%  
if (l == r) 3"pl="[*  
return; TiF2c#Q*y  
if ((mid - l) >= THRESHOLD) ;&9A Yh.  
mergeSort(data, temp, l, mid); *z{.9z`  
else ~LKX2Q:S  
insertSort(data, l, mid - l + 1); )ZP-t!).G#  
if ((r - mid) > THRESHOLD) >a aHN1Ca  
mergeSort(data, temp, mid + 1, r); _H (:$=$Q  
else @jp}WwC/  
insertSort(data, mid + 1, r - mid); eK]$8l|LI  
IUJRP  
for (i = l; i <= mid; i++) { fsxZQ=-PW  
temp = data; bR*/d-v^  
} jRv j:H9  
for (j = 1; j <= r - mid; j++) { nYv`{0S+m  
temp[r - j + 1] = data[j + mid]; Oy `2ccQ#  
} (fYrb# ]!y  
int a = temp[l]; z12c9k%s  
int b = temp[r]; i7RW8*  
for (i = l, j = r, k = l; k <= r; k++) { R Wd#)3  
if (a < b) { J|Xu]fg0  
data[k] = temp[i++]; \B<A.,i4  
a = temp; U'8ub(:&  
} else { \1p_6U7  
data[k] = temp[j--]; V L&5TZtz  
b = temp[j]; }?vc1%w  
} pSLv1d"9{  
} wv~?<DF  
} tUp'cG  
xg>AW Q  
/** 0qV"R7TW  
* @param data NSPa3NE  
* @param l I9 R\)3"  
* @param i ` iiZ  
*/ LT5rLdn  
private void insertSort(int[] data, int start, int len) { Yom,{;Bv  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); MDo4{7  
} hSvA dT]m  
} O+o4E?}  
} bLHj<AX#>|  
} qU1^ K  
&Vtgh3I  
堆排序: oo:(GfO}  
d/Z258  
package org.rut.util.algorithm.support; ?xTh}Sky  
_Q:739&  
import org.rut.util.algorithm.SortUtil; qhPvU( ,  
V@(7K0  
/** .skR4f,h  
* @author treeroot <KFE.\*Z4  
* @since 2006-2-2 x*9CK8o=  
* @version 1.0 jmAQ!y|W.  
*/ SnhB$DG  
public class HeapSort implements SortUtil.Sort{ ;bZIj` D(  
!"dbK'jb^  
/* (non-Javadoc) u I \zDR  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ||lI_B  
*/ .o2]ndT/J  
public void sort(int[] data) { [;Q8xvVZ'  
MaxHeap h=new MaxHeap(); Au6*hv3:  
h.init(data); YGA( "<  
for(int i=0;i h.remove(); b 83__i  
System.arraycopy(h.queue,1,data,0,data.length); yvgn}F{}  
} $hkMJ),T~  
buXPeIo^VM  
private static class MaxHeap{ \qrSJ=}t  
jDp]}d|f)  
void init(int[] data){ DiB~Ovh|  
this.queue=new int[data.length+1]; pLFJ"3IJB  
for(int i=0;i queue[++size]=data; [U]ouh)  
fixUp(size); $Yr'`(Cbc  
} yW$ja|^ E  
} r~sx] =/  
ERW>G {+  
private int size=0; PC| U]  
[I;5V=bKW  
private int[] queue; 5pBQ~m3  
_u`NIpXSP  
public int get() { n.{+\M6k  
return queue[1]; |EJ&s393&  
} eB:OvOol*^  
R;P>_ei(LK  
public void remove() { 6 1= ?(Iw  
SortUtil.swap(queue,1,size--); 3gW4\2|T  
fixDown(1); K)Nbl^6x  
} N#;k;Z'iL  
file://fixdown r@&d88U:  
private void fixDown(int k) { $XqfwlUu/4  
int j; @)8QxI^3[  
while ((j = k << 1) <= size) { LF'M!C9|  
if (j < size %26amp;%26amp; queue[j] j++; yJaQcGxE"  
if (queue[k]>queue[j]) file://不用交换 wl{Fx+<^3  
break; U}xQUFT|  
SortUtil.swap(queue,j,k); }57wE$9K  
k = j; =?`5n|A*  
} }}3*tn<6  
} 7-M$c7S  
private void fixUp(int k) { Vrf+ ~KO7  
while (k > 1) { gY], (*v  
int j = k >> 1; B)F2SK<@  
if (queue[j]>queue[k]) YC:>)  
break; -R,[/7zj  
SortUtil.swap(queue,j,k); 2&E1)^  
k = j; qy`95^  
} # E'g{.N  
} rsP3?.E  
uf* sI  
}  0gBD  
rO% |PRP  
} ?Uzs^rsb  
"h/{YjUS  
SortUtil:  J9oGw P  
f[n#Eu}   
package org.rut.util.algorithm; ,.` ";='o  
WV5gH*uUa  
import org.rut.util.algorithm.support.BubbleSort; ex8mA6g  
import org.rut.util.algorithm.support.HeapSort; P5ii3a?R  
import org.rut.util.algorithm.support.ImprovedMergeSort; X6mY#T'fQ  
import org.rut.util.algorithm.support.ImprovedQuickSort; VVdgNT|}W  
import org.rut.util.algorithm.support.InsertSort; G?)vqmJ%  
import org.rut.util.algorithm.support.MergeSort; Eb`U^*A  
import org.rut.util.algorithm.support.QuickSort; A6'G%of  
import org.rut.util.algorithm.support.SelectionSort; Urhh)i  
import org.rut.util.algorithm.support.ShellSort; $;%-<*Co  
Ga-AhP  
/** "Hmo`EB0  
* @author treeroot /xjHzva^ w  
* @since 2006-2-2 w$H=GF?"  
* @version 1.0 --0z"`@{  
*/ _9E7;ew  
public class SortUtil { ;m}lmq,  
public final static int INSERT = 1; da3]#%i0  
public final static int BUBBLE = 2; Tx35~Z`0  
public final static int SELECTION = 3; \xk`o5/{  
public final static int SHELL = 4; dL<okw  
public final static int QUICK = 5; >9D=PnHnD  
public final static int IMPROVED_QUICK = 6; 1Y410-.3w{  
public final static int MERGE = 7; S%b7NK  
public final static int IMPROVED_MERGE = 8; `LL#Aia  
public final static int HEAP = 9; M_V\mYC8I  
M'D;2qo  
public static void sort(int[] data) { c"%XE#D  
sort(data, IMPROVED_QUICK); 2.Ym  
} |b'fp1</  
private static String[] name={ >?yaG=  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" q('O@-HA  
}; oUEpzv,J  
3Juhn5&N  
private static Sort[] impl=new Sort[]{ HoGrvt<:.P  
new InsertSort(), WO*YBH@  
new BubbleSort(), \>w[#4`m  
new SelectionSort(), 6 $%^  
new ShellSort(), F#@Mf?#2  
new QuickSort(), OWCd$c_(  
new ImprovedQuickSort(), %FGPsHH  
new MergeSort(), F ]\4<  
new ImprovedMergeSort(), .eW}@1+[;  
new HeapSort() ecA[  
}; @* L^Jgn  
G*e/Ft.wf8  
public static String toString(int algorithm){ `9eE139V='  
return name[algorithm-1]; \1f$]oS  
} .l5y !?  
 %"j<`  
public static void sort(int[] data, int algorithm) { lyKV^7}  
impl[algorithm-1].sort(data); Mw7 ~:O`  
} ,;C92XY  
y}ez js  
public static interface Sort { E0}`+x  
public void sort(int[] data); [i.2lt#]  
}  N\DEY]  
fR!'i):u  
public static void swap(int[] data, int i, int j) { R{kZKD=  
int temp = data; wQ[~7 ,o  
data = data[j]; `!5 ZF@Q>e  
data[j] = temp; Yd lXMddE  
} {Q^P<  
} ]*U\ gm%  
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
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
10+5=?,请输入中文答案:十五