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
  • 5658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。 w Bi'KS  
插入排序: N '8u}WO  
Y M <8>d  
package org.rut.util.algorithm.support; R0l5"l*@+  
'K L" i  
import org.rut.util.algorithm.SortUtil; nI63Ns  
/** (&W&1KT  
* @author treeroot -8r';zR  
* @since 2006-2-2 &7i o/d\/  
* @version 1.0 s?:&#  
*/ 5-3.7CO$  
public class InsertSort implements SortUtil.Sort{ ~`uEZ  
[%);N\o2Y  
/* (non-Javadoc) |[RoR  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YPV@/n[N  
*/ /Vg=+FEO  
public void sort(int[] data) { T ke3X\|  
int temp; CWTPf1?eB  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); i; qb\  
} 3?do|>  
} [dQL6k";b  
} t==CdCl  
Xiy9Oeq2uh  
} rF3QmR?l  
]d4`PXI  
冒泡排序: m ll-cp  
?YeUA =[MC  
package org.rut.util.algorithm.support; eWgqds&#  
GQ@`qYLZ+  
import org.rut.util.algorithm.SortUtil; YKUb'D:t]  
b-d{)-G{(  
/** =02$Dwr  
* @author treeroot |2$wJ$ I  
* @since 2006-2-2 V>$A\AWw  
* @version 1.0 ?F^$4:  
*/ 0bR)]"K  
public class BubbleSort implements SortUtil.Sort{ <Va7XX%>  
MsaD@JY.y  
/* (non-Javadoc) z f rEM  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %M=Ob k  
*/ L[|($vQ"  
public void sort(int[] data) { /#lqv)s'  
int temp; StuQ}  
for(int i=0;i for(int j=data.length-1;j>i;j--){ r@O5{V  
if(data[j] SortUtil.swap(data,j,j-1); m#i5}uHHg  
} DFk0"+Ky  
} m=qEQy6#2u  
} B$ Z%_j&  
} z154lY}K  
u{6b>c|,X  
} .+@;gVZx1  
XtJIaD|:3  
选择排序: ^5MPK@)c,/  
!a.|URa7  
package org.rut.util.algorithm.support; yGxAur=dE  
(R9{wGV [  
import org.rut.util.algorithm.SortUtil; kK,Ne%}a2K  
V!{}%;f  
/** fj7\MTy  
* @author treeroot K+s@.D9J  
* @since 2006-2-2 SU,#:s(  
* @version 1.0 ~$WBcqo  
*/ c\J?J>xz  
public class SelectionSort implements SortUtil.Sort { !Qqi%  
!LunoC>B  
/* +E7Os|m  
* (non-Javadoc) 61[ 8I},V  
* +.EP_2f9  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) dbE]&w`?d  
*/ K1gZ>FEY|N  
public void sort(int[] data) { ?ZqvR^  
int temp; P[G.LO  
for (int i = 0; i < data.length; i++) { (uxe<'Co|  
int lowIndex = i; $ouw *|<  
for (int j = data.length - 1; j > i; j--) { |= o)|z2  
if (data[j] < data[lowIndex]) { 7K5D,"D;1  
lowIndex = j; 9GV1@'<Y]  
} Qf>$'C(7!a  
} (2SmB`g   
SortUtil.swap(data,i,lowIndex); \~r`2p-K  
} Cwh*AKq(  
} or8`.h EHI  
1Zh4)6x  
} H;~Lv;,g,  
|#Gug('  
Shell排序: F=B[%4q`%  
(/^s?`1{N?  
package org.rut.util.algorithm.support; k6}M7 &nY  
*K57($F  
import org.rut.util.algorithm.SortUtil; ~fht [S?@M  
v>[U*E  
/** k(]R;`f$W  
* @author treeroot a(eKb2CX  
* @since 2006-2-2 pef)c,U$  
* @version 1.0 \U?$ r[P  
*/ #B^A"?*S  
public class ShellSort implements SortUtil.Sort{ )Z"  
XHh!Q0v;  
/* (non-Javadoc) !bq3c(d  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) UyUz_6J  
*/ )@Vz,f\}  
public void sort(int[] data) { \se /2l  
for(int i=data.length/2;i>2;i/=2){ rP7[{'%r  
for(int j=0;j insertSort(data,j,i); . XVW2ISv  
} # h/#h\  
} n9w(Z=D\  
insertSort(data,0,1); @~+W  
} eVetG,["  
0^-1/Ec  
/** ,O'#7Dj  
* @param data ] oMtqkiR  
* @param j mH,L,3R;R  
* @param i z|k0${iu#  
*/ %@~;PS3kd  
private void insertSort(int[] data, int start, int inc) { |b+ZKRW  
int temp; }|j \QjH  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); JnY.]:  
} k0(_0o  
} |lG7/\A  
} e a3f`z  
SmUj8?6"  
} Sp]u5\  
LZI[5tA"  
快速排序: QUO'{;,  
?heg_ ~P  
package org.rut.util.algorithm.support; O,[9E  
{u (( y D  
import org.rut.util.algorithm.SortUtil; A?+0Ce&qL  
B4M rrW4=  
/** =H_vRd  
* @author treeroot h0oe'Xov  
* @since 2006-2-2 ~#];&WE  
* @version 1.0 -FGM>~x  
*/ G&z^AV  
public class QuickSort implements SortUtil.Sort{ W' Y?X]xr  
@9e}kiW  
/* (non-Javadoc) @j`gx M_-O  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) s J{J@/5  
*/ &~KAZ}xu  
public void sort(int[] data) { @QO^3%b8  
quickSort(data,0,data.length-1); *w OU=1+  
} oiTSpd-  
private void quickSort(int[] data,int i,int j){ EpU}~vC9C  
int pivotIndex=(i+j)/2; 9q]n &5  
file://swap s`2q(`}  
SortUtil.swap(data,pivotIndex,j); '',g}WvRwe  
^5n#hSqZ=M  
int k=partition(data,i-1,j,data[j]); C7=N`s}  
SortUtil.swap(data,k,j); [C`LKA$t  
if((k-i)>1) quickSort(data,i,k-1); eqSCE6r9x  
if((j-k)>1) quickSort(data,k+1,j); qORL 7?{  
zhgvqg-  
} v];P| Fi  
/** {` ByZB  
* @param data g%_ 3  
* @param i I|<`Er-;58  
* @param j p|>m 2(|  
* @return 'm TQ=1  
*/ bk|?>yd  
private int partition(int[] data, int l, int r,int pivot) { e8 1+as  
do{ qs>&Xn  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); iyv5\  
SortUtil.swap(data,l,r); KP)t,\@f!  
} s=>^ 8[0O  
while(l SortUtil.swap(data,l,r); va2FgW`Bd+  
return l; +Kp8X53  
} B8~bx%)3T  
( TJGJY  
} K]&i9`>N   
{8"Uxj_6V  
改进后的快速排序: .#}A/V.-Y  
i8A-h6E  
package org.rut.util.algorithm.support; TF?~vS%@P  
+45.fo  
import org.rut.util.algorithm.SortUtil; I23"DBR3  
~t<uX "K  
/** PXF u  
* @author treeroot wpD}#LRfm  
* @since 2006-2-2 cs 58: G5  
* @version 1.0 :W#?U yo  
*/ D `av9I  
public class ImprovedQuickSort implements SortUtil.Sort { {s0!hp  
a1shP};pK  
private static int MAX_STACK_SIZE=4096; X]_9g[V  
private static int THRESHOLD=10; Gi\Z"MiBZ  
/* (non-Javadoc) SB`xr!~A]  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y,?kS dS  
*/ d~q7!  
public void sort(int[] data) { (6i4N2  
int[] stack=new int[MAX_STACK_SIZE]; 40O@a:q*  
q2U?EP{8~  
int top=-1; 32Wa{LG;2  
int pivot; 7NkMr8[}F  
int pivotIndex,l,r; LbuhKL}VN  
KB {IWu  
stack[++top]=0; Wf~PP;  
stack[++top]=data.length-1; VAp 1{  
j_.tg7X  
while(top>0){ R5xV_;wD  
int j=stack[top--]; 0J6* U[  
int i=stack[top--]; X o[GD`t  
-EE}HUP)  
pivotIndex=(i+j)/2; P('bnDU  
pivot=data[pivotIndex]; vDyGxU!#\  
fg/hUUl  
SortUtil.swap(data,pivotIndex,j); 4KR$sKq$q  
Rm}G4Pq  
file://partition [Wxf,rW i  
l=i-1; U#%+FLX@w  
r=j; Lb?0<  
do{ [ OS& eK 8  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); LfJMSscfv  
SortUtil.swap(data,l,r); S0ReT*I  
} OVE?;x>n/1  
while(l SortUtil.swap(data,l,r); |xT'+~u  
SortUtil.swap(data,l,j); ?7"v~d]>  
w,j;XPp  
if((l-i)>THRESHOLD){ ,hZ?]P&  
stack[++top]=i; y(O~=S+<  
stack[++top]=l-1; wScr:o+K>L  
} wEw;],ur  
if((j-l)>THRESHOLD){ yH9&HFDp  
stack[++top]=l+1; ^\r{72!y  
stack[++top]=j; ikO9p|J  
} @k\,XV`T~t  
wRZS+^hx  
} 'wWuR@e#&  
file://new InsertSort().sort(data); hxt;sQAo{  
insertSort(data); q3`~uTzk  
} q. j$]?PQ  
/** C=bQ2t=Z  
* @param data )$K\:w>  
*/ ZiRCiQ/?  
private void insertSort(int[] data) { k"6v& O  
int temp; ?J-D6;  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); \YHl(  
} +|H,N7a<  
} GiKhdy  
} .*Bd'\:F/q  
0<##8m@F8  
} ' Er\ 68  
wh!8\9{g  
归并排序: ZZ/k7(8  
cC]]H&'Hg+  
package org.rut.util.algorithm.support; i(*fv(z  
9Q1w$t~Y  
import org.rut.util.algorithm.SortUtil; P<;Puww/  
EKS?3z%!  
/** -J0OtrZ  
* @author treeroot 2wa'WEx  
* @since 2006-2-2 Io t c>!  
* @version 1.0 D&pp <  
*/ sXtt$HID=  
public class MergeSort implements SortUtil.Sort{ kh8 M=  
h>p,r\X  
/* (non-Javadoc) k5 *Z@a  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A|GsbRuy  
*/ ,c 0]r;u!  
public void sort(int[] data) { 5bd4]1 gj  
int[] temp=new int[data.length]; jUDE)~h  
mergeSort(data,temp,0,data.length-1); %cJdVDW`L  
} uJ8FzS>[V  
\FF|b"E_=  
private void mergeSort(int[] data,int[] temp,int l,int r){ 'v=BAY=Ef  
int mid=(l+r)/2; ap,zC)[  
if(l==r) return ; vu&ny&=`  
mergeSort(data,temp,l,mid); [^XD @  
mergeSort(data,temp,mid+1,r); $`R=Q  
for(int i=l;i<=r;i++){ m)]|mYjju  
temp=data; )@] W=  
} @1U6sQ  
int i1=l; [z6P]eC7  
int i2=mid+1; Vt-V'`Y  
for(int cur=l;cur<=r;cur++){ eu?P6>urA  
if(i1==mid+1) d,Oe3?][0p  
data[cur]=temp[i2++]; v- p8~u1N  
else if(i2>r) >FJK$>[1:p  
data[cur]=temp[i1++]; RRzLQ7J  
else if(temp[i1] data[cur]=temp[i1++]; ~#)9Kl7<X  
else bJkFCI/  
data[cur]=temp[i2++]; 1lJ^$U  
} 02)Ybp6y  
} +UX} "m~W  
2sVDv@2  
} OL^DuoB4q  
c8HETs1  
改进后的归并排序: ywB0 D`s'  
j&b<YPZ  
package org.rut.util.algorithm.support; _Y$v=!fY&  
!3o/c w9  
import org.rut.util.algorithm.SortUtil; C4t~k  
prB:E[1  
/** Z-M4J;J@}  
* @author treeroot 2wgcVQ Awa  
* @since 2006-2-2 lTFo#p_(  
* @version 1.0 "{d[V(lE"  
*/ [4@@b"H  
public class ImprovedMergeSort implements SortUtil.Sort { \jS^+Xf?^  
f# hmMa  
private static final int THRESHOLD = 10; ,u!_mV  
W)Y:2P<.  
/* !!m GsgnW  
* (non-Javadoc) F5M{`:/  
* yVJ)JhV  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /Ao.b|mm  
*/ Q5IN1 ^=HF  
public void sort(int[] data) { QUF1_Sa  
int[] temp=new int[data.length]; &4)PW\ioY  
mergeSort(data,temp,0,data.length-1); 0UGAc]!/RZ  
} 238z'I+$G/  
zm4e+v-  
private void mergeSort(int[] data, int[] temp, int l, int r) { =/4}!B/  
int i, j, k; T b*Q4:r"  
int mid = (l + r) / 2; 2P{! n#"  
if (l == r) \lyHQ-gWhc  
return; BZjL\{IW  
if ((mid - l) >= THRESHOLD) W 9bpKmc  
mergeSort(data, temp, l, mid); I;9DG8C&v*  
else z5sKV7&\[n  
insertSort(data, l, mid - l + 1); C\|HN=2eh  
if ((r - mid) > THRESHOLD) qQS&K%F  
mergeSort(data, temp, mid + 1, r); . ywVGBvJ  
else 1KJ[&jS ]  
insertSort(data, mid + 1, r - mid); M?kXzb\O  
5 RYrAzQo  
for (i = l; i <= mid; i++) { 1-R4A7+3  
temp = data; Bma.Uln  
} "IWL& cH3  
for (j = 1; j <= r - mid; j++) { w"A>mEex<  
temp[r - j + 1] = data[j + mid]; "c![s%  
} 9Z3Vf[n5\  
int a = temp[l]; W=2]!%3#  
int b = temp[r]; .tK]-f2  
for (i = l, j = r, k = l; k <= r; k++) { clM6R  
if (a < b) { Qr?(2t#  
data[k] = temp[i++]; NIC.c3  
a = temp; 9D yy&$s  
} else { q@Zeu\T,*#  
data[k] = temp[j--]; lH"VLO2l  
b = temp[j]; 1W9uWkk_d  
} <u  
} D@k#'KU  
} '2{60t_A  
ntZHO}'  
/** j3>&Su>H4  
* @param data 4*UKR!sr  
* @param l R]o2_r7N"}  
* @param i G@<[fO|Iam  
*/ Su'l &]  
private void insertSort(int[] data, int start, int len) { T\Jm=+]c!  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); @^HZTuP2;  
} Tb] h<S  
} W@~a#~1O  
} \JNWL yw  
} )=0@4   
VxU{ZD~<Z"  
堆排序: kQrby\F(<  
cOP%R_ak?  
package org.rut.util.algorithm.support; i^rHZmT  
`<% w4 E  
import org.rut.util.algorithm.SortUtil; mrlhj8W?!  
l585L3i  
/** w}x&wWM  
* @author treeroot 6O'Y@9#  
* @since 2006-2-2 }jg,[jw_"X  
* @version 1.0 *C^TCyBK;  
*/ 6h\; U5  
public class HeapSort implements SortUtil.Sort{ =z}M(<G  
T`Xz*\}Zb  
/* (non-Javadoc) &VVvZ@X;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [kI[qByf  
*/ ,4(m.P10  
public void sort(int[] data) { q]y{ 4"=5  
MaxHeap h=new MaxHeap(); :/;;|lGw  
h.init(data); eW[](lGWM  
for(int i=0;i h.remove(); )U{IQE;T#  
System.arraycopy(h.queue,1,data,0,data.length); \Zn~y--Z  
} w X.]O!^X~  
`V?NS,@$  
private static class MaxHeap{ &=lh Kt  
` )~CT  
void init(int[] data){ OL623jQX  
this.queue=new int[data.length+1]; O{=@c96rl  
for(int i=0;i queue[++size]=data; z>spRl,dr  
fixUp(size); >W'"xK|:  
} d*:J0J(  
} $XFFNE`%  
p{w;y6e  
private int size=0; ,){WK|_  
&GI'-i  
private int[] queue; RP 6hw|  
gq+#=!(2  
public int get() { 1xU)nXXb  
return queue[1]; W1O Y}2kj  
} et`rPK~m  
r#^uY:T%  
public void remove() { TZ PUVOtL_  
SortUtil.swap(queue,1,size--); WhDNt+uk)  
fixDown(1); uHyc7^X>  
} 6H|&HV(!R  
file://fixdown OC`Mzf%.  
private void fixDown(int k) { {z8wFL\  
int j; ]?hlpL  
while ((j = k << 1) <= size) { GUsJF;;V  
if (j < size %26amp;%26amp; queue[j] j++;  .+-7 'ux  
if (queue[k]>queue[j]) file://不用交换 < z{,@Z}  
break; wPpern05  
SortUtil.swap(queue,j,k); 3:gF4(.  
k = j; hj3wxH.}  
} #M:Vwn JX  
} 2O0</^Z%E  
private void fixUp(int k) { HH^yruP\}  
while (k > 1) { Dfd%Z;Yu  
int j = k >> 1; 4I;$a;R!  
if (queue[j]>queue[k]) UFr5'T  
break; 3 n1 > +8  
SortUtil.swap(queue,j,k); }/F9(m  
k = j; k i{8f  
} }yM!o`90  
} Z]^O=kX7k  
%eE 6\f%g  
} t` zPx#])  
q_0,KOGW  
} a8Z{-=)  
$eh>.c'&]  
SortUtil: @Y+9")?  
c nV2}U/\  
package org.rut.util.algorithm; '_o(I  
$(pVE}J  
import org.rut.util.algorithm.support.BubbleSort; 6/L34VH  
import org.rut.util.algorithm.support.HeapSort; ] U[4r9V  
import org.rut.util.algorithm.support.ImprovedMergeSort; oo!JAv}~  
import org.rut.util.algorithm.support.ImprovedQuickSort; }zHG]k,j  
import org.rut.util.algorithm.support.InsertSort; {OW.^UIq^  
import org.rut.util.algorithm.support.MergeSort; Ba;tEF{X  
import org.rut.util.algorithm.support.QuickSort; 2r#W#z%vS  
import org.rut.util.algorithm.support.SelectionSort; <VmEXJIk  
import org.rut.util.algorithm.support.ShellSort; ~ 6Hi"w  
]Hrw$\Ky  
/** l~GcD  
* @author treeroot o1u?H4z  
* @since 2006-2-2 AM4 :xz  
* @version 1.0 :Pi="  
*/ p}-B>v  
public class SortUtil { -&r A<j  
public final static int INSERT = 1; XE : JL_  
public final static int BUBBLE = 2; +L#Q3}=s  
public final static int SELECTION = 3; ,+E"s3NW  
public final static int SHELL = 4; -2*Pm1\Z  
public final static int QUICK = 5; o$,e#q)8  
public final static int IMPROVED_QUICK = 6; GhY MO6Q4  
public final static int MERGE = 7; rFYw6&;vOi  
public final static int IMPROVED_MERGE = 8; R"[U<^  
public final static int HEAP = 9; [!b=A:@  
wRj&k(?*  
public static void sort(int[] data) { v,,Dz8!Ty  
sort(data, IMPROVED_QUICK); Y kcN-  
} =BBDh`$R  
private static String[] name={ &e1(|qax  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" R}\n @X*  
}; [xg& `x9,.  
IHNl`\Le  
private static Sort[] impl=new Sort[]{ J, vEZT<Mt  
new InsertSort(), 6?KJ"Ai9  
new BubbleSort(), EnXTL]=0S  
new SelectionSort(), X##hSGQM  
new ShellSort(), BW&)Zz  
new QuickSort(), _.3O(?p,  
new ImprovedQuickSort(), #Ue_  
new MergeSort(), ]jwF[D  
new ImprovedMergeSort(), UU]a).rz  
new HeapSort() w:o,mzuXK  
}; vrvOPLiQ  
_0qp!-l}  
public static String toString(int algorithm){ DsF<P@O6  
return name[algorithm-1]; _tpqo>  
} Y'2 |GJc2  
;TG<$4N  
public static void sort(int[] data, int algorithm) { yX|0 R H  
impl[algorithm-1].sort(data); /FA0(< -}  
} SHP_  
ER*Et+ >  
public static interface Sort { `'M}.q,k~  
public void sort(int[] data); S%k](\7!  
} 8zk?:?8%{  
B&c*KaK;~  
public static void swap(int[] data, int i, int j) { 44(l1xEN+  
int temp = data; \*6Ld %:h$  
data = data[j]; :sXn*k4v  
data[j] = temp; uvj`r5ei  
} B]5G"4,  
} ".T&nS[z  
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
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八