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
  • 7156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。 *j/[5J0'M  
插入排序: Lr;PESV  
 $% 5f  
package org.rut.util.algorithm.support; |8<P%:*N  
_=d X01  
import org.rut.util.algorithm.SortUtil; yG%<LP2p@f  
/** CDRkH)~$  
* @author treeroot fD:>cje  
* @since 2006-2-2 RbA.%~jjx*  
* @version 1.0 7Ew.6!s#n1  
*/ {%cm;o[7o  
public class InsertSort implements SortUtil.Sort{ r@9qjva  
U 2@Mxw  
/* (non-Javadoc) w\f>.N  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) X1GpLy)p  
*/ Gi*GFv%xB  
public void sort(int[] data) { b( qO fek  
int temp; ]Y%U5\$  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1);  SK&?s`  
} ( /):  
} D3i`ehh  
} g\O&gNq<)-  
<>9zXbI  
} tUR9ti  
3Q-[)Z )  
冒泡排序: :lGH31GG  
?5yj</W  
package org.rut.util.algorithm.support; R:}u(N  
MaX:o GF,  
import org.rut.util.algorithm.SortUtil; 'dFhZ08 u}  
y!;PBsU%Sx  
/** FJj #  
* @author treeroot _s> ZY0  
* @since 2006-2-2 !o k6*m  
* @version 1.0 5HAIKc  
*/ pPX~pPIj2  
public class BubbleSort implements SortUtil.Sort{ Ad@Odx=o*R  
=cN! h"C[  
/* (non-Javadoc) aTx*6;-PH  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) G',*"mZQ[  
*/ v1E=P7}\{s  
public void sort(int[] data) { &D[pX|!  
int temp; ;& PK6G  
for(int i=0;i for(int j=data.length-1;j>i;j--){ #ErIot  
if(data[j] SortUtil.swap(data,j,j-1); ,%a7sk<5k  
} mGK-&|gq  
} d*A(L5;@  
} lv* fK  
} 1>!wm0;x  
}}VB#   
} nvdo|5  
?<#2raH-  
选择排序: O73 /2=1V  
BIr24N  
package org.rut.util.algorithm.support; $j\UD8Hj'-  
Q.8)_w  
import org.rut.util.algorithm.SortUtil; BRx`83CK  
Jrkj foN  
/** gtBnP~zT\B  
* @author treeroot $YyN-C  
* @since 2006-2-2 !QB(M@1  
* @version 1.0 1YklPMx6  
*/ ]757oAXl  
public class SelectionSort implements SortUtil.Sort { ,;2x.We  
4ZZ/R?AiK  
/* gD\  =  
* (non-Javadoc) z>f>B6  
* E!eBQ[@  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `Xbk2KD p  
*/ {cNH|  
public void sort(int[] data) { $1CAfSgKw  
int temp; c 4<~? L  
for (int i = 0; i < data.length; i++) { 3']yjj(gHr  
int lowIndex = i; 5Y4 i|R  
for (int j = data.length - 1; j > i; j--) { 4}~zVT0'~  
if (data[j] < data[lowIndex]) { k]n=7vw;  
lowIndex = j; zlh}8Es  
} ydNcbF%K  
} COx<X\  
SortUtil.swap(data,i,lowIndex); *Q<%(JJ  
} r2EIhaGF;  
} ?]fd g;?@  
NC*h7  
} 7DU"QeLeb  
P8JN m"C  
Shell排序: Lmy ^/P%  
a;a2x .<  
package org.rut.util.algorithm.support; 4s!rrDN  
T5eXcI0t  
import org.rut.util.algorithm.SortUtil; r$~w3yN)v  
;P-xKRU!Xx  
/** *{]9e\DF  
* @author treeroot D cN s`2  
* @since 2006-2-2 (9N75uCa  
* @version 1.0 o9!DK  
*/ kq[*q-:"x  
public class ShellSort implements SortUtil.Sort{ =H_|007C  
-ISI!EU$  
/* (non-Javadoc) ^/Id!Y7  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H1PW/AW  
*/ I9ga8mG4-'  
public void sort(int[] data) { cS98%@DR  
for(int i=data.length/2;i>2;i/=2){ Ks.pb !r  
for(int j=0;j insertSort(data,j,i); ,zy4+GW  
} .[1"Med J  
} yfS`g-j{~  
insertSort(data,0,1); GM6Y`iU  
} ellj/u61bj  
(hefpqpi  
/** #c5 NFU}9  
* @param data & p 1Et  
* @param j L;=<d  
* @param i @0q%&v0  
*/ fbKL31PI  
private void insertSort(int[] data, int start, int inc) { r'/7kF- 5  
int temp; -Cxk#-sb#  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); *yqEl O  
} [-cYFdt"V  
} U:eahK  
} ~Dw.3P:-  
e,qc7BJzK  
} m'$]lf;*  
Int 6xoz  
快速排序: B*A{@)_  
bWK}oYB*  
package org.rut.util.algorithm.support; Z 4uft  
4r!8_$fN?G  
import org.rut.util.algorithm.SortUtil; 2{zFO3i<3  
i~}[/^  
/** <">tB"="b  
* @author treeroot N^A&DrMF  
* @since 2006-2-2 yz!j9pJ  
* @version 1.0 c *(]pM  
*/ D}l^ow  
public class QuickSort implements SortUtil.Sort{ O0#wM-M  
+2=N#LM  
/* (non-Javadoc) $VYMAk&\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _8b)Xx@5  
*/ oJw~g [  
public void sort(int[] data) { {w.rcObIw+  
quickSort(data,0,data.length-1); ~HsPYc8Fz  
} , KF>PoySA  
private void quickSort(int[] data,int i,int j){ 4flyV -  
int pivotIndex=(i+j)/2; ]?tsYXU j  
file://swap ,{A-<=6t  
SortUtil.swap(data,pivotIndex,j); wE:hl  
Pp1HOJYJp0  
int k=partition(data,i-1,j,data[j]); !.mMO_4}  
SortUtil.swap(data,k,j); /j!?qID  
if((k-i)>1) quickSort(data,i,k-1); IC>OxYg*  
if((j-k)>1) quickSort(data,k+1,j); FLJdnL  
1 ry:Z2  
} XX",&cp02V  
/** uBw1Xud[YI  
* @param data w1EYXe  
* @param i v bzeabm  
* @param j (UPkb$Qc  
* @return nC^?6il  
*/ )s(J8J[b*L  
private int partition(int[] data, int l, int r,int pivot) { x(h(a#,r  
do{ |U%S<X  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); lq=| =  
SortUtil.swap(data,l,r); 8 ZD1}58U4  
} 7. 9n  
while(l SortUtil.swap(data,l,r); 7yxZe4~|#  
return l; IF%^H K@  
} RekTWIspT/  
-8; ,#  
} mw";l$Aq}  
J6/Mm7R  
改进后的快速排序: t<sg8U.  
:ak D  
package org.rut.util.algorithm.support; Es6b~ #  
E6|!G  
import org.rut.util.algorithm.SortUtil; !tBNA  
*IUw$|Z6z)  
/** +lmMBjDa  
* @author treeroot !fr /WxJ  
* @since 2006-2-2 l j*ELy  
* @version 1.0 RX:wt  
*/ YG$2ySkDhE  
public class ImprovedQuickSort implements SortUtil.Sort { =wHHR1e  
_XIls*6AK  
private static int MAX_STACK_SIZE=4096; w~@.&  
private static int THRESHOLD=10; FCTz>N^p  
/* (non-Javadoc) !/, 6+2Ru  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) SHS:>V  
*/ _,(]T&j #2  
public void sort(int[] data) { 1$oVcDLl  
int[] stack=new int[MAX_STACK_SIZE]; e|u|b  
j|!.K|9B  
int top=-1; VQF!|*#  
int pivot; "ut:\%39.  
int pivotIndex,l,r; d)`XG cx{=  
 ZeD;  
stack[++top]=0; hM\<1D CKG  
stack[++top]=data.length-1; (lF;c<69  
q/ -8sO}q  
while(top>0){ *F/uAI^)  
int j=stack[top--]; |E$Jt-'  
int i=stack[top--]; k.? aq  
r(NfVQF  
pivotIndex=(i+j)/2; f)hs>F  
pivot=data[pivotIndex]; WLGx= ;  
l4u@0;6P  
SortUtil.swap(data,pivotIndex,j); |1J=wp)#  
!PUbaF-.6  
file://partition ;Vc@]6Ck  
l=i-1; E15"AO  
r=j; -C.x;@!k  
do{ %0T/>:1[E  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); <cG .V |B  
SortUtil.swap(data,l,r); E< nXkqD  
} 33x3zEUt6  
while(l SortUtil.swap(data,l,r); opTDW)  
SortUtil.swap(data,l,j); 2zR*`9$  
Rro|P_  
if((l-i)>THRESHOLD){ lQQXV5NV  
stack[++top]=i; iJ_`ZM.w  
stack[++top]=l-1; e"(l  
} fU^B 3S6X  
if((j-l)>THRESHOLD){ rm2"pfs  
stack[++top]=l+1; ]$(::'pmK  
stack[++top]=j; pj>b6^TI6C  
} RL/~E xYC  
6W$ #`N>  
} E 5}T_~-{  
file://new InsertSort().sort(data); Im%|9g;P  
insertSort(data); B[7|]"L@  
} UN_f2  
/**  !J!zi  
* @param data \W;~[-"#  
*/ ;SkC[;`J  
private void insertSort(int[] data) { m! &bK5+*  
int temp; Pi::cf>3  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); _H@s^g  
} , M$*c  
} ,pir,Eozg  
} g6 EdCG.V  
mtuq  
} FW&P`Iu  
:/ns/~5xa:  
归并排序: WpC@ nz?  
=:`1!W0I  
package org.rut.util.algorithm.support; ]3hz{zqV^  
pcNVtp 'V  
import org.rut.util.algorithm.SortUtil; E>TD`  
#G{}Rd|!  
/** d+~c$(M)  
* @author treeroot -_'M *-  
* @since 2006-2-2 /tA$ 'tZ  
* @version 1.0 DCX 4!,ZF  
*/ w(`X P  
public class MergeSort implements SortUtil.Sort{ !;lA+O-t  
TveCy&  
/* (non-Javadoc) 5b9_6L6  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7;Km J}$  
*/ {@g3AG%  
public void sort(int[] data) { UV)[a%/SB&  
int[] temp=new int[data.length]; i:OD)l  
mergeSort(data,temp,0,data.length-1); t)g1ICt  
} %^^2  
K]zBPfx  
private void mergeSort(int[] data,int[] temp,int l,int r){ e%x$Cb:znn  
int mid=(l+r)/2; JI )+  
if(l==r) return ; 2j-|.l c  
mergeSort(data,temp,l,mid); n?@3R#4D3  
mergeSort(data,temp,mid+1,r); $y\'j5nk3  
for(int i=l;i<=r;i++){ >!A&@1[M  
temp=data; gm8L5c V  
} /MsXw/],  
int i1=l; Lcplc"C  
int i2=mid+1; n?&G>`u*  
for(int cur=l;cur<=r;cur++){ n5 @H  
if(i1==mid+1) v[CX-CBZ?  
data[cur]=temp[i2++]; 9%oLv25{)  
else if(i2>r) j9%u&  
data[cur]=temp[i1++]; Z4}Yw{=f  
else if(temp[i1] data[cur]=temp[i1++]; $rs7D}VNc  
else wGd8q xa  
data[cur]=temp[i2++]; 9+@_ZI-  
} T#J]%IDd  
} k<"ZNQm$.  
:~:(49l  
} Xo(K*eIN  
L GK0V!W  
改进后的归并排序: CcgCKT  
%,a.431gi  
package org.rut.util.algorithm.support; #$K\:V+ 4  
~yt+xWV  
import org.rut.util.algorithm.SortUtil; h_?D%b~5  
5 LhFD  
/** p}R)qz-=5U  
* @author treeroot PAH; +  
* @since 2006-2-2 [@#P3g\:>W  
* @version 1.0 +q) ^pCC  
*/ oQ8W0`bZa  
public class ImprovedMergeSort implements SortUtil.Sort { D?qA aq&4  
jFw?Ky2  
private static final int THRESHOLD = 10; nXb;&n%  
ED[PP2[/  
/* \4~uop,Nb+  
* (non-Javadoc) cc.z C3Hs3  
* p[hA?dXn  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3tS~/o+]  
*/ Th`IpxV  
public void sort(int[] data) { j9) Z'L  
int[] temp=new int[data.length]; 50l=B]M  
mergeSort(data,temp,0,data.length-1); w80g) 4V+  
} -2K`:}\y&  
q,^^c1f  
private void mergeSort(int[] data, int[] temp, int l, int r) { E >KV1P  
int i, j, k; j?g{*M  
int mid = (l + r) / 2; N02N w(pi  
if (l == r) P[8`]=  
return; 7od!:<v/  
if ((mid - l) >= THRESHOLD) )<1M'2  
mergeSort(data, temp, l, mid); jToA"udW/  
else u(\b1h n  
insertSort(data, l, mid - l + 1); Ue^upx  
if ((r - mid) > THRESHOLD) -_%n\#  
mergeSort(data, temp, mid + 1, r); hCc_+/j|  
else ]EE}ax%#aq  
insertSort(data, mid + 1, r - mid); +[V?3Gdb  
(4>k+ H  
for (i = l; i <= mid; i++) { ;I:jd")  
temp = data; A>xFNem  
} F[l{pc "C  
for (j = 1; j <= r - mid; j++) { Zc{at}{  
temp[r - j + 1] = data[j + mid]; x!tCK47Yq  
} 3O:Z;YP:<  
int a = temp[l]; JyjS#BWi  
int b = temp[r]; _Sosw|A  
for (i = l, j = r, k = l; k <= r; k++) { ^ bexXYh  
if (a < b) { %_(e{Mf)  
data[k] = temp[i++]; ](aXZ<,  
a = temp; ES(b#BlrP/  
} else { W-<C%9O!  
data[k] = temp[j--]; GW]Ygf1t  
b = temp[j]; tOn/r@Fd^E  
} K!).QB'  
} }<[@)g.h.  
} 38 tRb"3zP  
lN<vu#  
/** ) 'j7Ra  
* @param data cDYKvrPY  
* @param l <2fZYt vt  
* @param i kbN2dL  
*/ JpcG5gX^B  
private void insertSort(int[] data, int start, int len) { XPBKQm_}  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); &_x:+{06  
} }:])1!a  
} ey_3ah3x  
} @dvlSqm)  
} @a'Rn  
k-Hy>5;  
堆排序: *Ew`Fm H  
`WboM\u  
package org.rut.util.algorithm.support; hbl:~O&a/  
%?Yf!)owh  
import org.rut.util.algorithm.SortUtil; h8&VaJ  
c$Z3P%aP'V  
/** 8d?r )/~  
* @author treeroot *P7 H=Yf&  
* @since 2006-2-2 3+%a  
* @version 1.0 4@AY~"dq  
*/ "oz : & #+  
public class HeapSort implements SortUtil.Sort{ <~@}r\  
2Nrb}LH  
/* (non-Javadoc) 1xP*  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) o,>9|EMQZ  
*/ Xia4I* *  
public void sort(int[] data) { J~Uq'1?  
MaxHeap h=new MaxHeap(); hfE5[  
h.init(data); :[xFp}w{  
for(int i=0;i h.remove(); mE=%+:o.  
System.arraycopy(h.queue,1,data,0,data.length); NX%"_W/W  
} 'i+j;.  
fUx;_GX?  
private static class MaxHeap{ f8E,.$>  
4zKmoYt  
void init(int[] data){  vX1 8 ]  
this.queue=new int[data.length+1]; iga.B  
for(int i=0;i queue[++size]=data; ;}1O\nngR  
fixUp(size); dD YD6  
} H c,e&R  
} cQ}3? v  
#0$fZ  
private int size=0; Yw=7(}  
qQjd@J}^  
private int[] queue; StLFq6BO  
n=Ze p{^  
public int get() { 3Gi^TXE]  
return queue[1]; Gk:tT1  
} Hq$&rNnq\  
4}4cA\B:n  
public void remove() { 5tx!LGOK  
SortUtil.swap(queue,1,size--); $,u>,  
fixDown(1); &_cH9zw@  
} \MqOHM.[  
file://fixdown ?}g^/g !  
private void fixDown(int k) { q"(b}3  
int j; {ooztC   
while ((j = k << 1) <= size) { )iX2r{  
if (j < size %26amp;%26amp; queue[j] j++; ci 4K Nv;  
if (queue[k]>queue[j]) file://不用交换 HTz5LAe~b7  
break; *'w?j)}A9g  
SortUtil.swap(queue,j,k); a\-AGG{2/X  
k = j; W6gI#  
} =j~BAS*"  
} 7+9o<j@@o  
private void fixUp(int k) { H2lQ(Y+H  
while (k > 1) { y%Rq6P=4Q  
int j = k >> 1; &&% oazR=  
if (queue[j]>queue[k]) Gsn$r(m{K  
break; %u}#|+8}  
SortUtil.swap(queue,j,k); mq}V @H5  
k = j; E)%D LZ  
} `L LS|S]  
} 12VIP-ABK  
GXaPfC0-y  
} t!-\:8n  
[*C%u_h  
} NX4G;+6  
mW2D"-s  
SortUtil: \sz*M B  
w_h{6Kc<  
package org.rut.util.algorithm; |k$6"dXSO  
ZIN1y;dJ  
import org.rut.util.algorithm.support.BubbleSort; 8WE@ X)e  
import org.rut.util.algorithm.support.HeapSort; !9.k%B:  
import org.rut.util.algorithm.support.ImprovedMergeSort; IR:GoD+  
import org.rut.util.algorithm.support.ImprovedQuickSort; U&i#cF   
import org.rut.util.algorithm.support.InsertSort; S B~opN  
import org.rut.util.algorithm.support.MergeSort; 0!-'4+"  
import org.rut.util.algorithm.support.QuickSort; 2vTO>*t  
import org.rut.util.algorithm.support.SelectionSort;  ZC]|s[  
import org.rut.util.algorithm.support.ShellSort; -T}r$A  
)DmydyQ'  
/** |a#=o}R_  
* @author treeroot (gnN </%  
* @since 2006-2-2 4> uNH5  
* @version 1.0 SwsJ<Dq^z  
*/  v%$l(  
public class SortUtil { JH| D  
public final static int INSERT = 1; eL>wKu:r  
public final static int BUBBLE = 2; ,4S[<(T"  
public final static int SELECTION = 3; WMHYOJR  
public final static int SHELL = 4; [[HCP8Wk   
public final static int QUICK = 5; fF(AvMsO  
public final static int IMPROVED_QUICK = 6; O1UArD  
public final static int MERGE = 7; B `.aQ  
public final static int IMPROVED_MERGE = 8; Mq#m;v$E  
public final static int HEAP = 9; o{>4PZ}=g  
'z^'+}iyv  
public static void sort(int[] data) { J6[}o4Z  
sort(data, IMPROVED_QUICK); JNY?] |=  
} 'Kk/ J+6U  
private static String[] name={ $@@ii+W}\  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" |fywqQFq  
}; !zt>& t  
r&Nh>6<&/  
private static Sort[] impl=new Sort[]{ z Ohv>a  
new InsertSort(),  6/#+#T  
new BubbleSort(), sVr|kvn2  
new SelectionSort(), L){V(*K '  
new ShellSort(), $3B%4#s  
new QuickSort(), |$6Ten[B#  
new ImprovedQuickSort(), n-2!<`UFX  
new MergeSort(), f,i2U|1pbj  
new ImprovedMergeSort(), ? A;RTM  
new HeapSort() o2B|r`R  
}; 4i.&geX A.  
l?$X.Cw X  
public static String toString(int algorithm){ :!l.ze{F  
return name[algorithm-1]; f[D%(  
} Qy"%%keV'T  
:-#7j} R&  
public static void sort(int[] data, int algorithm) { 5 =8v\q?)c  
impl[algorithm-1].sort(data); Zyr| J!VF  
} J~xm[^0  
PY C  
public static interface Sort { 7FkiT  
public void sort(int[] data); ftcLP  
} zRmVV}b  
wl%ysM| x  
public static void swap(int[] data, int i, int j) { %z.V$2  
int temp = data; ygV_"=+|N  
data = data[j]; B_iaty   
data[j] = temp; Xs|d#WbX  
} xjF>AAM_Px  
} GFE3p  
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