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
  • 6257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。 />2A<{6\=P  
插入排序: Mb2:'u [  
x e"4u JO  
package org.rut.util.algorithm.support; Kx(76_XD  
C.b,]7i  
import org.rut.util.algorithm.SortUtil; '-$))AdD  
/** Z[DetRc-  
* @author treeroot [8B tIv  
* @since 2006-2-2 .5jnKU8NF  
* @version 1.0 xl1L4R)6D  
*/ )nf=eU4|  
public class InsertSort implements SortUtil.Sort{ 4*@G&v?n  
^&f{beU9  
/* (non-Javadoc) 12%z3/i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) SH@  
*/ 0A #9C09  
public void sort(int[] data) { =!1-AR%.^  
int temp; xI.Orpw  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); &KOG[tv  
} _WRR 3  
} j]@ x Q,y  
} :,xyVb+  
| o;j0  
} Fy4<  
Q2_WH)J 3  
冒泡排序: b@{%qh ,C  
60U{ e}Mkb  
package org.rut.util.algorithm.support; xdFP$Y~ogy  
i5L+8kx4  
import org.rut.util.algorithm.SortUtil; rzYobOKd#  
$ g1wK}B3  
/** $ DABR  
* @author treeroot Tb!B!m  
* @since 2006-2-2 h=i A;B^>  
* @version 1.0 {|7OmslC@  
*/ $ly#zQR  
public class BubbleSort implements SortUtil.Sort{ z1{E:~f  
VrnK)za*H  
/* (non-Javadoc) WcZo+r  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .Y^d9.  
*/ yPzULO4  
public void sort(int[] data) {  9:K  
int temp; ;QvvU[eb  
for(int i=0;i for(int j=data.length-1;j>i;j--){ OxmlzQ"vM  
if(data[j] SortUtil.swap(data,j,j-1); r+V(1<`2X  
} \U<F\i  
} t`Y1.]@U  
} NXWIE4T>*^  
} v4,syd*3|V  
x]%4M\T``  
} 4? /ot;>2  
y ? {PoNI  
选择排序: mNBpb}  
w|n?m  
package org.rut.util.algorithm.support; :(S/$^U  
@6I[{{>X  
import org.rut.util.algorithm.SortUtil; "PDSqYA  
yaYIgG  
/** hNR >Hy\  
* @author treeroot @$b+~X)7  
* @since 2006-2-2 4?*"7t3  
* @version 1.0 v#<+n{B  
*/ x`=5l`  
public class SelectionSort implements SortUtil.Sort { ?:;hTY  
P7BJ?x  
/* NkjQyMF  
* (non-Javadoc) Y(G*Yi?;  
* /O(;~1B  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qS/71Kv'  
*/ g8iB;%6  
public void sort(int[] data) { %f3Nml  
int temp; 7PQj7&m  
for (int i = 0; i < data.length; i++) { A0N ;VYv  
int lowIndex = i; onJ[&f  
for (int j = data.length - 1; j > i; j--) { dC;d>j,  
if (data[j] < data[lowIndex]) { ,n,7.m.D  
lowIndex = j; l`5}i|4KTW  
} loqS?bC ]  
} n.H`1@  
SortUtil.swap(data,i,lowIndex); $Bwvw)(%  
} r<f-v_bxF  
} /wCxf5q0  
E/ed0'|m  
} *!7SM 7  
\8>N<B)  
Shell排序: 3Ns:O2|  
!PP?2Ax  
package org.rut.util.algorithm.support; Nno={i1jk  
;Wrd=)Ka  
import org.rut.util.algorithm.SortUtil; k^%TJ.y@  
<812V8<!  
/** nrD=[kc!w  
* @author treeroot  q&Ua(I  
* @since 2006-2-2 ^&w'`-ra  
* @version 1.0 LM`tNZ1Fc!  
*/ Y8CYkJTAD-  
public class ShellSort implements SortUtil.Sort{ 7QL) }b.H  
VTX'f2\  
/* (non-Javadoc) E6&uZr  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  S~5 =1b  
*/ +VI0oo {Z  
public void sort(int[] data) { Pc:'>,3!V3  
for(int i=data.length/2;i>2;i/=2){ ljR?* P  
for(int j=0;j insertSort(data,j,i); $YO]IK$  
} nOoh2jUM  
} ojs/yjvx  
insertSort(data,0,1); H-y-7PW*~  
} 5>k~yaju/  
U?m?8vhR6(  
/** <h>fip3o  
* @param data sAAIyPJts  
* @param j kd2'-9  
* @param i &7y1KwfXn  
*/ &(U=O?r7  
private void insertSort(int[] data, int start, int inc) { I3=Sc^zz&V  
int temp; ha'm`LiX  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); #S74C*'8  
} Tf]VcEF  
} B!C32~[  
} \Hx#p`B%  
o+23?A~+  
} o\YdL2:X  
w9?wy#YI  
快速排序: *xNjhR]7v  
FQ&VM6_  
package org.rut.util.algorithm.support; Yy;1N{dbT  
x~,?Zj)n?C  
import org.rut.util.algorithm.SortUtil; dufHd  
UVRV7^eTe  
/** F>{uB!!L4  
* @author treeroot 24k}~"We  
* @since 2006-2-2 {*  _ W  
* @version 1.0 pNme jz:  
*/ -P uVI5L<  
public class QuickSort implements SortUtil.Sort{ E*]L]vR  
^g"6p#S=n  
/* (non-Javadoc)  ]@ 0V  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ag4^y&  
*/ H zK=UcD  
public void sort(int[] data) { q:eAL'OkM  
quickSort(data,0,data.length-1); "[Lp-4A\  
} l@9:V hU(  
private void quickSort(int[] data,int i,int j){ u"3cSuqy  
int pivotIndex=(i+j)/2; nr6[rq  
file://swap BU .G~0  
SortUtil.swap(data,pivotIndex,j); rMx_ <tXX  
1KEPD@0oxx  
int k=partition(data,i-1,j,data[j]); |-?b)yuAz  
SortUtil.swap(data,k,j); ?AH<y/i<Y  
if((k-i)>1) quickSort(data,i,k-1); #rC+13  
if((j-k)>1) quickSort(data,k+1,j); %[;KO&Ga  
2Nszxvq,  
} ?["ZEa  
/** zXO.NSC[  
* @param data 0;`PHNBq  
* @param i 6H9]]Unju  
* @param j $ :P~21,  
* @return iTyApLV  
*/ TMs\#  
private int partition(int[] data, int l, int r,int pivot) { hYx^D>}]  
do{ T{Q&}`D)r  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); =z dti'2{4  
SortUtil.swap(data,l,r); 7tnzgtal  
} %iML??S  
while(l SortUtil.swap(data,l,r); |8rJqtf +&  
return l; AY]nc# zz  
} jV8><5C  
2Ki/K(  
} a_x6 v*  
rJxT)bR  
改进后的快速排序: mI18A#[ 3  
(/BkwbJyE  
package org.rut.util.algorithm.support; S]{Z_|h*j  
T9.gs}B0  
import org.rut.util.algorithm.SortUtil; ]YKWa"  
y%AJ>@/;  
/** U3QnWPt}>  
* @author treeroot yLX\pkAt4  
* @since 2006-2-2 C$; ~=  
* @version 1.0 sa ?;D  
*/ <WmCH+>?r  
public class ImprovedQuickSort implements SortUtil.Sort { .YlM'E*X  
Hs`  '](  
private static int MAX_STACK_SIZE=4096; S] a$w5ZP  
private static int THRESHOLD=10; t$2{U  
/* (non-Javadoc) +cN2 KP  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YKk%;U*  
*/ 2:yv:7t/  
public void sort(int[] data) { XQPJ(.G  
int[] stack=new int[MAX_STACK_SIZE]; ZvJx01F{  
+d96Z^KUhv  
int top=-1; cR} =3|t  
int pivot; 9p<l}h7g  
int pivotIndex,l,r; Gz:a1-x  
v]>(Ps )R  
stack[++top]=0; )*B.y|b #  
stack[++top]=data.length-1; N3)EG6vE*  
;'kH<Iq  
while(top>0){ Z$@Nzza-  
int j=stack[top--]; NgKNT}JDv  
int i=stack[top--]; 4a~_hkY]  
4{=Em5`HbO  
pivotIndex=(i+j)/2; FE.:h'^h  
pivot=data[pivotIndex]; ^EZoP:x(oE  
5q[@N  J  
SortUtil.swap(data,pivotIndex,j); R<U <Y'Y  
ijfT!W  
file://partition |BR&p)7)  
l=i-1; H{If\B%1t  
r=j; 3yDvr*8-@  
do{ pe8MG(V  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); xb\lbS{ f  
SortUtil.swap(data,l,r); ~?FKww|_*J  
} $oz ZFvJF  
while(l SortUtil.swap(data,l,r); `B~%TEvMh  
SortUtil.swap(data,l,j); |ONOF  
A'T! og|5  
if((l-i)>THRESHOLD){ Sk xaSJ"  
stack[++top]=i; wS GUNP9  
stack[++top]=l-1; 8in8_/x  
} |dO1w.x/  
if((j-l)>THRESHOLD){ q :gH`5N  
stack[++top]=l+1; 0T*jv! q>  
stack[++top]=j; OWU]gh@r  
} ev`p!p  
vhKD_}}aP  
} !Qy3fs  
file://new InsertSort().sort(data); \I> ,j,c  
insertSort(data); 6xwC1V?:0t  
} Y) Z>Bi  
/** &Ef'5  
* @param data "dIoIW  
*/ 2ma.zI@^u9  
private void insertSort(int[] data) {  )57OZ  
int temp; `#~@f!';  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 1K!7FiqY  
} C]}0h!_V  
}  (1ebE  
} *<KY^;  
xf|=n  
} <=p"c k@  
>%{h_5  
归并排序: ]>!]X*\9  
LGK}oL'  
package org.rut.util.algorithm.support; /IgTmXxxj  
nRvV+F0#  
import org.rut.util.algorithm.SortUtil; r3|vu"Uei  
^7=yjD`  
/** 2e+DUZBoC  
* @author treeroot p0b&CrALx  
* @since 2006-2-2 [qc90)^Q,  
* @version 1.0 ]itvu:pl%  
*/ p< XjiRq  
public class MergeSort implements SortUtil.Sort{ "w N DjWv  
:[F w c  
/* (non-Javadoc) ).LJY<A  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) B<i1UJ5  
*/ _T H'v:C  
public void sort(int[] data) { *5wb8 [  
int[] temp=new int[data.length]; =VDN9-/.  
mergeSort(data,temp,0,data.length-1); =5+:<e,&  
} +3VY0J  
N'IzHyo.  
private void mergeSort(int[] data,int[] temp,int l,int r){ Bp9 u6R  
int mid=(l+r)/2; azN<]u@.  
if(l==r) return ; w}+jfO9  
mergeSort(data,temp,l,mid); n{|~x":9V  
mergeSort(data,temp,mid+1,r); *PD7H9m  
for(int i=l;i<=r;i++){ iX}EJD{f  
temp=data; (.Sj"6+  
} ZM0vB% M|  
int i1=l; l{6fR(d ?  
int i2=mid+1; L ej3? k  
for(int cur=l;cur<=r;cur++){ fAXF_wj  
if(i1==mid+1) &!_ >J0  
data[cur]=temp[i2++]; g\d|/HV K  
else if(i2>r) A=>%KQc?  
data[cur]=temp[i1++]; (FP- K  
else if(temp[i1] data[cur]=temp[i1++]; DdPU\ ZWR  
else j&u{a[Y/}  
data[cur]=temp[i2++]; ;=aj)lemCr  
} 2e#hJ-/`-  
} :D;BA  
SK#; /fav6  
} ELPzqBI  
l.El3+  
改进后的归并排序: s@V4ny9x  
L~=h?C<  
package org.rut.util.algorithm.support; Zg_ fec~6q  
~}+F$&  
import org.rut.util.algorithm.SortUtil; ;5M I8  
9n%vz@X  
/** ?31#:Mg6g+  
* @author treeroot H+6+I53  
* @since 2006-2-2 ^|gD;OED7O  
* @version 1.0 Gg$4O8  
*/ \$$DM"+:;H  
public class ImprovedMergeSort implements SortUtil.Sort { D.su^m_1  
yp9vgUs  
private static final int THRESHOLD = 10; 2Jm#3zFYz3  
I82GZL  
/* ~nDbWv"  
* (non-Javadoc) QZw`+KR  
* Qv~lH&jG  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |ZC@l^a7  
*/ {Dupk0'(  
public void sort(int[] data) { v)1@Ew=Y%  
int[] temp=new int[data.length]; rK(TekU  
mergeSort(data,temp,0,data.length-1); crTRfqF  
} %m)vQ\Vtx  
| $  
private void mergeSort(int[] data, int[] temp, int l, int r) { -Ph"#R&  
int i, j, k; rU/8R'S  
int mid = (l + r) / 2; k}18 ~cWM  
if (l == r) S+2we  
return; V96:+r  
if ((mid - l) >= THRESHOLD) 1K\z amBg  
mergeSort(data, temp, l, mid); >= O5=\`  
else XN|[8+#U<@  
insertSort(data, l, mid - l + 1); e>J.r("f  
if ((r - mid) > THRESHOLD) #7v=#Jco  
mergeSort(data, temp, mid + 1, r); U'*~Ju  
else oDW)2*8yF  
insertSort(data, mid + 1, r - mid); 'nJ,mZx  
@;;3B  
for (i = l; i <= mid; i++) { tw k  
temp = data; gUGMoXSTI|  
} BMi5F?Q'G  
for (j = 1; j <= r - mid; j++) { "vvv@sYxi  
temp[r - j + 1] = data[j + mid]; N.'-9hv  
} *{x8@|K8  
int a = temp[l]; ({$>o]<h  
int b = temp[r]; <]Btx;}  
for (i = l, j = r, k = l; k <= r; k++) { OjWg>v\ v  
if (a < b) { _*w kTI+j  
data[k] = temp[i++]; ,eSII2,r4  
a = temp; yByxy-~  
} else { >lkjoEVQ  
data[k] = temp[j--]; jI/#NCKE  
b = temp[j]; xcE2hK/+  
} |Ml~_m  
} XcFu:B  
} z?<Xx?Kk  
lK Ry4~O  
/** ^UmhSxQ##  
* @param data ec h1{v\B|  
* @param l v`&>m '  
* @param i \ lW*.<  
*/ b?,''t  
private void insertSort(int[] data, int start, int len) { ovk^  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); EG!Nsb^,  
} Ju-#F@38  
} w!r.MWE  
} v8U&{pD,  
} w&e q *q  
NqC}}N\,  
堆排序: ]|QA`5=$  
6 m%/3>q  
package org.rut.util.algorithm.support; o0kKf+[  
h'B0rVQia>  
import org.rut.util.algorithm.SortUtil; /u~L3Cp(  
U!b~vrr^  
/** NQx>u  
* @author treeroot )1/J5DI @8  
* @since 2006-2-2 PG{"GiZz=  
* @version 1.0 Dco3`4pl  
*/ k $E{'Dv  
public class HeapSort implements SortUtil.Sort{ H2{&da@D5  
uCjbb  
/* (non-Javadoc) ~.E r  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H,(4a2zx  
*/ /Py`a1  
public void sort(int[] data) { 5Z_aN|Xn  
MaxHeap h=new MaxHeap(); <z QUa  
h.init(data); .*Axr\x3  
for(int i=0;i h.remove(); yK>s]65&  
System.arraycopy(h.queue,1,data,0,data.length); [Qn=y/._r  
} F\%PB p  
& &:ZY4`  
private static class MaxHeap{ e@DVf  
2NF#mWZ(s  
void init(int[] data){ Y'?{yx{  
this.queue=new int[data.length+1]; MC_i"P6a  
for(int i=0;i queue[++size]=data; *#Iqz9X.Y3  
fixUp(size); ,-)ww:  
} uDMyO<\  
} yHmNO*(  
]g]~!":  
private int size=0; nm`}Z'&)  
jN%+)Kj0C)  
private int[] queue; KV|ywcGhT  
pW5PF)([  
public int get() { ;'oi7b  
return queue[1]; iI@(Bl]  
} :Oc&{z?q  
GD<pqm`vVY  
public void remove() { 89fl\18%  
SortUtil.swap(queue,1,size--); hQ Lh}}B  
fixDown(1); r'J3\7N!u  
} trg&^{D<  
file://fixdown /i IWt\J  
private void fixDown(int k) { 8Og)(BC  
int j; z1LY|8$G  
while ((j = k << 1) <= size) { D,SL_*r{  
if (j < size %26amp;%26amp; queue[j] j++; 8zH/a   
if (queue[k]>queue[j]) file://不用交换 C72btS  
break; 2"B3Q:0he|  
SortUtil.swap(queue,j,k); _R;+}1G/  
k = j; B=hJ*;:p  
} *Bx' g| u  
} n4G53+y'  
private void fixUp(int k) { #*;Nb  
while (k > 1) { {-,^3PI\  
int j = k >> 1; 6WEu(}=  
if (queue[j]>queue[k]) WyJXT.  
break; %M;{+90p>t  
SortUtil.swap(queue,j,k); {#%;HqP  
k = j; dWhF[q"  
} {y7,n  
} Vr<ypyC  
ZUUfn~ORc  
} \ /6m  
!Mk:rO-L  
} 6882:,q  
da53XEF&  
SortUtil: ~*uxKEH  
cRC)99HP  
package org.rut.util.algorithm; Id'@!U:NA  
d 3 }'J  
import org.rut.util.algorithm.support.BubbleSort; G/C5o=cY  
import org.rut.util.algorithm.support.HeapSort; 7<c&)No;  
import org.rut.util.algorithm.support.ImprovedMergeSort; R7!^ M  
import org.rut.util.algorithm.support.ImprovedQuickSort; 3a#j&]  
import org.rut.util.algorithm.support.InsertSort; 9wC:8@`6E  
import org.rut.util.algorithm.support.MergeSort; hX@.k|Yd  
import org.rut.util.algorithm.support.QuickSort; 7c Gq.U  
import org.rut.util.algorithm.support.SelectionSort; IWcYa.=tZ  
import org.rut.util.algorithm.support.ShellSort; u(|k/~\  
g_w4}!|  
/** iiZK^/P$  
* @author treeroot P=9Zm  
* @since 2006-2-2 dSBW&-p  
* @version 1.0 >}ozEX6c2  
*/ SAGLLk07G  
public class SortUtil { .o5r;KD  
public final static int INSERT = 1; C&ivjFf  
public final static int BUBBLE = 2; <U$A_ ]*w  
public final static int SELECTION = 3; 20f):A6  
public final static int SHELL = 4; K*Tvo `  
public final static int QUICK = 5; IK-E{,iKc  
public final static int IMPROVED_QUICK = 6; d/OIc){tD  
public final static int MERGE = 7; '2%/h4jY  
public final static int IMPROVED_MERGE = 8; mckrR$>  
public final static int HEAP = 9; y]`@%V2P  
S:"t]gbF =  
public static void sort(int[] data) { HSOdqjR*  
sort(data, IMPROVED_QUICK); ZR'q.y[k)  
} p=(;WnsK  
private static String[] name={ _k@{> ?(a  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" (dF4F4`{  
}; %?EOD=e =  
pTK|u!fs  
private static Sort[] impl=new Sort[]{ Y2Y2>^  
new InsertSort(), 3Ecm Nwr  
new BubbleSort(), y6o^ Knl  
new SelectionSort(), O/\jkF  
new ShellSort(), %zyMWC  
new QuickSort(), soZw""|v  
new ImprovedQuickSort(), v;;X2 a1k  
new MergeSort(), _rqOzE)  
new ImprovedMergeSort(), [,a O*7 N  
new HeapSort() 0 n,5"B  
}; k[ Iwxl;/  
morI'6N  
public static String toString(int algorithm){ <5(8LMF  
return name[algorithm-1]; WL}6YSC  
} ~]/X,Cf  
_A)<"z0E  
public static void sort(int[] data, int algorithm) { Q[p0bD:  
impl[algorithm-1].sort(data); )B*?se]LJ  
} h{sW$WA  
$YSD%/c  
public static interface Sort { -H`G6oMOO  
public void sort(int[] data); 5! Z+2Cu]  
} VSZ6;&2^  
"`"j2{9|e!  
public static void swap(int[] data, int i, int j) { Xt= &  
int temp = data; n/8Kb.Vf  
data = data[j]; 0 \LkJ*i  
data[j] = temp; #s#z@F  
} d!KX.K\NM,  
} pLzsL>6h  
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
温馨提示:欢迎交流讨论,请勿纯表情、纯引用!
认证码:
验证问题:
10+5=?,请输入中文答案:十五