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
  • 6505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。 8.pz?{**T  
插入排序: <Dm6CH  
7v,>sX  
package org.rut.util.algorithm.support; F5 LQgK-z  
iqy}|xAU  
import org.rut.util.algorithm.SortUtil; +crAkb}i  
/** `zzX2R Je  
* @author treeroot K+v 250J$-  
* @since 2006-2-2 #0`"gR#+  
* @version 1.0 ~;eWQwD  
*/ iLmU|jdE  
public class InsertSort implements SortUtil.Sort{ ,Qyz2- w  
Km,tfM5j  
/* (non-Javadoc) izFu&syv)  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) T@yH. 4D  
*/ ;g*X.d  
public void sort(int[] data) { (X>y)V  
int temp; $#RD3#=?u  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); j%p~.kW5  
} Dx <IS^>i  
} !FSraW2  
} &]LwK5SR  
H&03>.b  
} |Y'$+[TE  
K6Gc)jp:b  
冒泡排序: ,6M-xSDs  
,j_{IL690  
package org.rut.util.algorithm.support; &us8,x6yg  
_5`M( ;hL2  
import org.rut.util.algorithm.SortUtil; K&)a3Z=(.  
5)nv  
/** }qKeX4\-  
* @author treeroot >`{i[60r  
* @since 2006-2-2 {Y0I A97,  
* @version 1.0 rM?D7a{q  
*/ mCz6&  
public class BubbleSort implements SortUtil.Sort{ +XpRkX&-  
]UgA z  
/* (non-Javadoc) ~JZ Lfw  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /yykOvUO  
*/ '|d (<.[  
public void sort(int[] data) { `%ENGB|  
int temp; O"#`i{^?2  
for(int i=0;i for(int j=data.length-1;j>i;j--){ %<M<'jxSca  
if(data[j] SortUtil.swap(data,j,j-1); u^]yz&9V  
} p +T&9  
} D~?kvyJ  
} P);Xke  
} )K?GAj]Pq  
! 4oIx`  
} 5t<]|-i!  
#>- rKv.A  
选择排序: 6VE >$`m  
##s !-.T  
package org.rut.util.algorithm.support; 6sZRR{'  
xc/|#TC8?  
import org.rut.util.algorithm.SortUtil; <GNOT"z  
l?R_wu,Q  
/** 0l:5hD,)F  
* @author treeroot eAuJ}U[  
* @since 2006-2-2 (C3d<a\:  
* @version 1.0 (D l"s`UH~  
*/ bv+e'$U3  
public class SelectionSort implements SortUtil.Sort { * QR7t:([  
^LNc  
/* >|'6J!Op  
* (non-Javadoc) #KK(Z \;  
* h7y*2:l6  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YSwD#jO0  
*/ =#^dG ''*"  
public void sort(int[] data) { 0sUc6_>e  
int temp; <Z__Q  
for (int i = 0; i < data.length; i++) { FRg6-G/S  
int lowIndex = i; )F$Stg3e  
for (int j = data.length - 1; j > i; j--) { 41zeN++  
if (data[j] < data[lowIndex]) { ZbrE m  
lowIndex = j; j |i6/Pk9J  
} !6%G%ZG@3-  
} GawO>7w8  
SortUtil.swap(data,i,lowIndex); AO]lXa  
} X<QE]RZ  
} J6%op{7/  
^KaMi_--  
} Orb(xLChJ  
kp6x6%{K\  
Shell排序: M[{Cy[ta  
zh.c_>jS  
package org.rut.util.algorithm.support; lET)<V(Y  
P X0#X=$  
import org.rut.util.algorithm.SortUtil; }dHiW:J>  
u#,]>;  
/** 4bBxZY  
* @author treeroot :I $2[K  
* @since 2006-2-2 {S}@P~H =  
* @version 1.0 Yo(B8}?0!  
*/ i\ Vpp8<B  
public class ShellSort implements SortUtil.Sort{ NN:TT\!v  
;MMFF{  
/* (non-Javadoc) </=PN1=A  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c[y8"M5  
*/ 1v4kN -  
public void sort(int[] data) { bGJUu#  
for(int i=data.length/2;i>2;i/=2){ 5QSmim  
for(int j=0;j insertSort(data,j,i); 1P[Lz!C  
} 3a qmK.`H  
} &f yFUg  
insertSort(data,0,1); LF~#4)B  
}  %aKkk)s  
"qsNySI  
/** {_~G+rqY  
* @param data (lnQ!4LK  
* @param j UBVb#FNF  
* @param i J50 ~B3bj`  
*/ %_[-[t3  
private void insertSort(int[] data, int start, int inc) { ?>y-5B[K/(  
int temp; ]x G8vy  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); yq}{6IyZ^  
} RI(uG-Y  
} #'8PFw\zw  
} SIl g  
7&3URglsL"  
} nX~MoWH1  
*X\c $ =*  
快速排序: W.|6$hRl)  
/wTf&_"mTL  
package org.rut.util.algorithm.support; [86'/:L\2  
a  98  
import org.rut.util.algorithm.SortUtil; ' XF`&3 i  
v'!Nt k  
/** 3+-(;>>\  
* @author treeroot h9I )<_}R  
* @since 2006-2-2 X*"K g  
* @version 1.0 nIjQLx  
*/ g5Dx9d{  
public class QuickSort implements SortUtil.Sort{ -T?IkL)  
PNKT\yd  
/* (non-Javadoc) xu =B  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) JY2 F-0t)  
*/ j''Iai_  
public void sort(int[] data) { aAri  
quickSort(data,0,data.length-1); "Y!dn|3  
} 0 MIMs#  
private void quickSort(int[] data,int i,int j){ gDub+^ye>/  
int pivotIndex=(i+j)/2; Hl;p>>n  
file://swap BFO Fes`>~  
SortUtil.swap(data,pivotIndex,j); j/<y  
 J31M:<  
int k=partition(data,i-1,j,data[j]); tA-B3 ]  
SortUtil.swap(data,k,j); mx9/K+:  
if((k-i)>1) quickSort(data,i,k-1); 7LwS =yP  
if((j-k)>1) quickSort(data,k+1,j); a<wZv-\Vau  
D5pF:~tQ(j  
} `t1$Ew<  
/** (U_Q7hja?  
* @param data bUN,P"  
* @param i u-{l,p_H  
* @param j ql~{`qoD~  
* @return [M^[61  
*/ ;g:bn5G  
private int partition(int[] data, int l, int r,int pivot) { 4w( vRe  
do{ IxZ.2 67  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); @;fE%N  
SortUtil.swap(data,l,r); ~5NGDT#L*  
} U 0RfovJ  
while(l SortUtil.swap(data,l,r); HF: T]n,  
return l; (nD$%/uK'  
} yXA f  
S;Z3v)E-f  
} ,-3(^d\1F  
yCIgxPv|7  
改进后的快速排序: <j\;>3Q  
.4<U*Xkt  
package org.rut.util.algorithm.support; A+*oT(`  
E`fssd~  
import org.rut.util.algorithm.SortUtil; r ` &|)Hx  
yim$y, =d  
/** /:` i%E  
* @author treeroot pPqN[OJ  
* @since 2006-2-2 kqW<e[  
* @version 1.0 6b70w @P!  
*/ huJq#5?  
public class ImprovedQuickSort implements SortUtil.Sort { Sz|CreFK16  
+.]}f}Y  
private static int MAX_STACK_SIZE=4096; uq4s bkP  
private static int THRESHOLD=10; SrtVoe[  
/* (non-Javadoc) 7NB 9Vu|gD  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $p3Wjf:bH  
*/ I'9s=~VfY,  
public void sort(int[] data) { fq'Xy9L  
int[] stack=new int[MAX_STACK_SIZE]; A dEbyL  
@JEmybu  
int top=-1; 'UVv(-  
int pivot; 'ZH<g8:=@  
int pivotIndex,l,r; iM|"H..  
=)- Q?1q  
stack[++top]=0; qH Ga  
stack[++top]=data.length-1; rm=~^eB  
:{s%=\k {d  
while(top>0){ Q|B|#?E==  
int j=stack[top--]; ; eF4J  
int i=stack[top--]; [A9 ,!YY  
S@xsAib0J  
pivotIndex=(i+j)/2; pLQSG}N  
pivot=data[pivotIndex]; S"^KJUUc  
bsi q9$F  
SortUtil.swap(data,pivotIndex,j); 2^ bpH%  
NhK(HTsvK  
file://partition !)/iRw9re  
l=i-1; "YzTMKu  
r=j; <W51oO  
do{ ^q&wITGI  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); )fMX!#KP  
SortUtil.swap(data,l,r); @=0r3  
} V2s}<uG  
while(l SortUtil.swap(data,l,r); gQh Ccv  
SortUtil.swap(data,l,j); "h^#<bPN  
dA)4(0o8fD  
if((l-i)>THRESHOLD){ 3.<6;?  
stack[++top]=i; G#n^@kc*,  
stack[++top]=l-1; HS`bto0*  
} i9\\evJs  
if((j-l)>THRESHOLD){ 12d}#G<q-  
stack[++top]=l+1; ^s@*ISY  
stack[++top]=j; :uwRuPI  
} mrhp)yF  
5Vqmv<F;$Z  
} *[xNp[4EU  
file://new InsertSort().sort(data); dI0bTw|s/  
insertSort(data); [ lzy &To  
} (>LHj]}K  
/** Iwt2}E(e  
* @param data @b!R2Yq  
*/ "dK|]w8  
private void insertSort(int[] data) { ,-7/]h,l  
int temp; OHP3T(Q5  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); {|5$1v   
} j,56Lh%1  
} Vr-3M+l=O  
} ^wO_b'@v  
UJz4>JF  
} 1&% d  
Y!a+#N!  
归并排序: a0?iR5\  
SfZ=%6b7  
package org.rut.util.algorithm.support; !HR2Rfl  
38U5^`  
import org.rut.util.algorithm.SortUtil; 2u~c/JryN  
[  t  
/** |.8d,!5w}  
* @author treeroot kg?T$}O  
* @since 2006-2-2 }r~v,KDb  
* @version 1.0 ll(e,9.D  
*/ O& 3r*vd  
public class MergeSort implements SortUtil.Sort{ A)RI:?+  
6t_ 3%{  
/* (non-Javadoc) b>bgUDq  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) uq|vNLW26  
*/ W. J:.|kt  
public void sort(int[] data) { %89" A'g  
int[] temp=new int[data.length]; P )t]bS  
mergeSort(data,temp,0,data.length-1); n~,]KdU]  
} 8sR  
EFRZ% Y  
private void mergeSort(int[] data,int[] temp,int l,int r){ B;z>Dd,Y_x  
int mid=(l+r)/2; #0?"J)  
if(l==r) return ; Zr.\`mG4f  
mergeSort(data,temp,l,mid); vNC$f(cQ  
mergeSort(data,temp,mid+1,r); h{W$ fZc<  
for(int i=l;i<=r;i++){ Y|m_qB^_  
temp=data; qD(fYOX{C  
} rysP)e  
int i1=l; )e|$K= D  
int i2=mid+1; [GR|$/(z=  
for(int cur=l;cur<=r;cur++){ FtFv<UV  
if(i1==mid+1) C`NBHRa>  
data[cur]=temp[i2++]; s`Yu"s 8}4  
else if(i2>r) iJ`%yg,  
data[cur]=temp[i1++]; v7o?GQ75  
else if(temp[i1] data[cur]=temp[i1++]; I 9{40_  
else A;fB6  
data[cur]=temp[i2++]; ;!l*7}5X=  
} #gX%X~w$F  
} vz;7} Zj]  
A*\o c  
} tA! M  
IS,zy+w  
改进后的归并排序: DnNt@e2|  
j}rgO z.  
package org.rut.util.algorithm.support; OX)#F'Sl}  
<pTQpU  
import org.rut.util.algorithm.SortUtil; er[" NSo  
~^lH ^J   
/** 4i_spF-3  
* @author treeroot MiSja#"+A  
* @since 2006-2-2 6[+\CS7Lt  
* @version 1.0 <CZI7]PM7  
*/ 5T$}Oy1  
public class ImprovedMergeSort implements SortUtil.Sort { saGRP}7?  
-TzI>Fz  
private static final int THRESHOLD = 10; N{1.g S  
)myf)"l5  
/* l-<3{!  
* (non-Javadoc) !dfS|BA]  
* !Qv5"_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) yxaT7Oqh%  
*/ C6K|:IK{  
public void sort(int[] data) { b4Ricm  
int[] temp=new int[data.length]; 6 WA|'|}=  
mergeSort(data,temp,0,data.length-1); F^.om2V|9  
} ki;!WhF~  
4*0:bhhhf_  
private void mergeSort(int[] data, int[] temp, int l, int r) { "XGD:>Q.  
int i, j, k; vnz[w=U  
int mid = (l + r) / 2; TpJg-F  
if (l == r) |rr$U  
return; snXB`U C  
if ((mid - l) >= THRESHOLD) 5z1\#" B[  
mergeSort(data, temp, l, mid); ~A8qeaP  
else q%OcLZ<,  
insertSort(data, l, mid - l + 1); - *:p.(c  
if ((r - mid) > THRESHOLD) 5~@?>)TBv  
mergeSort(data, temp, mid + 1, r); %/UV_@x&  
else [3t0M5x w  
insertSort(data, mid + 1, r - mid); Dh hG$  
'8s>rH5[V  
for (i = l; i <= mid; i++) { +mJ :PAy4  
temp = data; XMt u"K  
} bH'S.RWp=  
for (j = 1; j <= r - mid; j++) { ?r{TOj n  
temp[r - j + 1] = data[j + mid]; XOu+&wOu  
} CTl(_g  
int a = temp[l]; 7V~ "x&Eu  
int b = temp[r]; n 11LxGwk  
for (i = l, j = r, k = l; k <= r; k++) { 8h*t55  
if (a < b) { E)C.eW /  
data[k] = temp[i++]; Of-C  
a = temp; 8<YX7e  
} else { #$LH2?)  
data[k] = temp[j--]; A5sf  
b = temp[j]; 9wAA. -"  
} "Z;~Y=hC13  
} J6*f Uh  
} q}#iV$dAj  
|:./hdcad  
/** Xl#Dw bx  
* @param data Wu4ot0SZ  
* @param l Ba/RO36&c  
* @param i 6X dWm  
*/ bRWIDPh  
private void insertSort(int[] data, int start, int len) { 8V6=i'GK  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); X6Un;UL  
} uCw>}3  
} RG&I\DTyt  
} }-d)ms!  
} `&7mHa61  
#":: ' ?,  
堆排序: -7k[Vg?  
DeH0k[o  
package org.rut.util.algorithm.support; 8h@q  
},rav]  
import org.rut.util.algorithm.SortUtil; 3FFaEl  
(@+h5@J[`I  
/** Ffnk1/ Zy  
* @author treeroot CK2B  
* @since 2006-2-2 y>$1 UwQ  
* @version 1.0 B1E$v(P3M  
*/ '0Lov]L  
public class HeapSort implements SortUtil.Sort{ BYS lKTh  
P^"R4T  
/* (non-Javadoc) M~als3  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H#+\nT2m  
*/ jk )Vb  
public void sort(int[] data) { 3S5^ `Ag#  
MaxHeap h=new MaxHeap(); GMz8B-vk  
h.init(data); eI^gV'UK  
for(int i=0;i h.remove(); cA<<& C  
System.arraycopy(h.queue,1,data,0,data.length); H#35@HF*o  
} 3 -tO;GKb  
:V-k'hm &  
private static class MaxHeap{ 69Nw/$  
.l \r9I(  
void init(int[] data){ hd5$yU5JQ  
this.queue=new int[data.length+1]; IhE9snJ[  
for(int i=0;i queue[++size]=data; (VyA6a8  
fixUp(size); T '.[F  
} rIVvO  
} )Ob]T{GY  
X'f)7RbT  
private int size=0; \b$<J.3  
5X0QxnnV  
private int[] queue; W"Z#Fs{n8  
1SUzzlRx  
public int get() { ll%G!VR  
return queue[1]; :N2E}hxk  
} P[FV2R~  
jJia.#.Ze  
public void remove() { qz`rL#W]  
SortUtil.swap(queue,1,size--); ZYa\"zp-  
fixDown(1); G=|70pxU  
} :k~dj C  
file://fixdown :=9<  
private void fixDown(int k) { tw<P)V\h  
int j; /g@^H/DO  
while ((j = k << 1) <= size) { Wwhgo.Wx  
if (j < size %26amp;%26amp; queue[j] j++; G6V/SaD  
if (queue[k]>queue[j]) file://不用交换 V.8%|-d  
break; vM(Xip7  
SortUtil.swap(queue,j,k); 3rNc1\a;  
k = j; Yl~$V(  
} "]#'QuR  
} ul@3 Bt  
private void fixUp(int k) { I^G^J M!  
while (k > 1) { UW6VHA>  
int j = k >> 1; 26.)Ur<F  
if (queue[j]>queue[k]) &tj0M.-  
break; 'w.}2(  
SortUtil.swap(queue,j,k); ,hWcytzEw  
k = j; =IZ[_ /@  
} RBE7485  
} 4&{!M _  
&s8<6P7  
} #by Jqy&e  
?v4E<iXs  
} K(VW%hV1  
d2~l4IL)~  
SortUtil: _R^y\1Qu  
ARF\fF|<2  
package org.rut.util.algorithm; 1k[GuG%/K  
\}#@9=  
import org.rut.util.algorithm.support.BubbleSort; Z5B/|{  
import org.rut.util.algorithm.support.HeapSort; MDHb'<o?y  
import org.rut.util.algorithm.support.ImprovedMergeSort; Y5Z!og  
import org.rut.util.algorithm.support.ImprovedQuickSort; !n<o)DsZR  
import org.rut.util.algorithm.support.InsertSort; YJ,*(A18  
import org.rut.util.algorithm.support.MergeSort; "|t!7hC  
import org.rut.util.algorithm.support.QuickSort; w"8V0z  
import org.rut.util.algorithm.support.SelectionSort; 9x?'}  
import org.rut.util.algorithm.support.ShellSort; aGK@)&h$  
gn)R^  
/** ((<`zx  
* @author treeroot !E0!-UpY  
* @since 2006-2-2 X>zlb$  
* @version 1.0 =6\LIbO  
*/ ]Blf9h7  
public class SortUtil { f~ZEdq8  
public final static int INSERT = 1; &= eYr{  
public final static int BUBBLE = 2; LZ<[ll#C  
public final static int SELECTION = 3; ?djQZ *  
public final static int SHELL = 4; e |V]  
public final static int QUICK = 5; 4 1t)(+r  
public final static int IMPROVED_QUICK = 6; BStk&b  
public final static int MERGE = 7; EzpFOqJG  
public final static int IMPROVED_MERGE = 8; aG{$Ic  
public final static int HEAP = 9; <)U4Xz?  
hXB|g[zT  
public static void sort(int[] data) { tFM$#JN  
sort(data, IMPROVED_QUICK); <9eu1^g  
} lV6dm=k  
private static String[] name={  {mTytT  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 8P2 J2IU  
}; :O-1rD  
:P+\p=  
private static Sort[] impl=new Sort[]{ FvdeQsc!  
new InsertSort(), l]6% lud8_  
new BubbleSort(), %,UPJn  
new SelectionSort(), cWLqU  
new ShellSort(), ~*.-  
new QuickSort(), ,S&z<S_  
new ImprovedQuickSort(), M;.ZM<Ga  
new MergeSort(), ~Z)/RT/  
new ImprovedMergeSort(), 1G^#q,%X_v  
new HeapSort() GJA`l8`SQ  
}; cg{AMeW  
Log|%P\  
public static String toString(int algorithm){ S\#17.=  
return name[algorithm-1]; iG<Som  
} l"+J c1\X  
SA"8!soY3  
public static void sort(int[] data, int algorithm) { J'T=q/  
impl[algorithm-1].sort(data); ;zH HIdQ>-  
} _NZ@4+aW  
`{Tk@A_yd  
public static interface Sort { oBQm05x"  
public void sort(int[] data); ZH 6\><My  
} l.+yn91%>  
3V<&|  
public static void swap(int[] data, int i, int j) { >I"V],d!6  
int temp = data; q_[G1&MC  
data = data[j]; 5&!c7$K0  
data[j] = temp; {XCf-{a]~  
} 9KuD(EJS  
} quxdG>8  
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