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
  • 7191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。 nY%5cJ`"  
插入排序: 'jg3  
q2aYEuu,  
package org.rut.util.algorithm.support; N)2f7j4C &  
nIk$7rGLB  
import org.rut.util.algorithm.SortUtil; V$`Gwr]|n  
/** IM@tN L  
* @author treeroot 6IcNZ!j98  
* @since 2006-2-2 cre;P5^E  
* @version 1.0 *e>]~Z,  
*/ 7[#yu2  
public class InsertSort implements SortUtil.Sort{ A^\.Z4=d"  
;,h/   
/* (non-Javadoc) Kv&g5&N,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) CY:d`4  
*/ ~uWOdm-"[  
public void sort(int[] data) { 13k !'P  
int temp; (2ot5x}`j  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); g|X;ahTT  
} =8Jfgq9E  
} =T?}Nt  
} :M3oUE{  
7cDU2l  
} {7hLsK[])  
v X~RP *  
冒泡排序: $ ,Ck70_  
1Na@|yY  
package org.rut.util.algorithm.support; ^2D1`,|N  
6fo3:P*O  
import org.rut.util.algorithm.SortUtil; K)tQ]P  
/*FH:T<V  
/** uA t V".  
* @author treeroot d[^KL;b?6  
* @since 2006-2-2 z4%uN |V  
* @version 1.0 C$h<Wt=<  
*/ yOU(2"8p  
public class BubbleSort implements SortUtil.Sort{ 2j JmE&)7,  
hg.#DxRi{  
/* (non-Javadoc) ^n Jyo:DO;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {PP9$>4`l  
*/ Yf,K#' h:  
public void sort(int[] data) { >^Q&nkB"B  
int temp; z /KK)u(q  
for(int i=0;i for(int j=data.length-1;j>i;j--){  5^<h}u9  
if(data[j] SortUtil.swap(data,j,j-1); \uqjs+  
} tsOrt3   
} 5@IB39  
} 1J=.N|(@Q  
} 1/1Xk,E  
wcSyw2D  
} ok^d@zI  
=uk0@hy9b  
选择排序: NL=|z=q  
)~4II.`%^  
package org.rut.util.algorithm.support; Mv 544>:  
"I?Am&>'  
import org.rut.util.algorithm.SortUtil; GcIDG`RX  
9O` m,t  
/** `pf4X/Py  
* @author treeroot q\Q{sv_  
* @since 2006-2-2 TNCgaTJ{h  
* @version 1.0 #4MBoN(3  
*/ <9E0iz+j  
public class SelectionSort implements SortUtil.Sort { :P,sxDlG)  
O<PO^pi  
/* Va,<3z%O<  
* (non-Javadoc) lt^\  
* LZJA4?C  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N7'OPTKt&  
*/ h^,8rd  
public void sort(int[] data) { 1wzqGmjmt  
int temp; (fNUj4[  
for (int i = 0; i < data.length; i++) { v 8T$ &-HJ  
int lowIndex = i; ;{ i'#rn{  
for (int j = data.length - 1; j > i; j--) { 0nn okN^  
if (data[j] < data[lowIndex]) { YBYZ=,"d  
lowIndex = j; K 8n4oz#z  
} t*z~5_/  
} <DKS+R  
SortUtil.swap(data,i,lowIndex); m }a|FS  
} q"O.Cbk  
} q{s(.Uq$&  
0q>P~] Ow  
} D']ZlB 'K  
bwVPtu`  
Shell排序: yKYUsp  
5>3}_  
package org.rut.util.algorithm.support; d(vsE%/!  
EXP%Mk/  
import org.rut.util.algorithm.SortUtil; R1nJUOE4w^  
Fc~'TBf,,`  
/** `U+l?S^$  
* @author treeroot [A}rbD K  
* @since 2006-2-2 }kw/W#)J  
* @version 1.0 4h5g'!9-g  
*/ f|^dD`  
public class ShellSort implements SortUtil.Sort{ 5MFxo63  
mRB   
/* (non-Javadoc) xe7O/',pa=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I1[g&9,  
*/ X;<BzA!H  
public void sort(int[] data) { ,Y 3W?  
for(int i=data.length/2;i>2;i/=2){ ?9l [y  
for(int j=0;j insertSort(data,j,i); $0bjKy  
} 6KD `oUx  
} -':Y\:W  
insertSort(data,0,1); 0|R# Tb;Y  
} ;a-$D]Db  
<0yE 5Mrf  
/** uOa26kE4  
* @param data J]m{ b09F  
* @param j z0|&W&&D  
* @param i xs\!$*R  
*/  K;LZ-  
private void insertSort(int[] data, int start, int inc) { ? uYu`Ojzr  
int temp; .(pN5JI*  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 8ElKD{.BU8  
}  Z%I  
} [tMZ G%h  
} jTLSdul+  
R!l:O=[<  
} vG \a1H  
SQeRSz8bK4  
快速排序: !"e5~7  
}g$(+1g  
package org.rut.util.algorithm.support; G^q3Z#P  
JG9`h#  
import org.rut.util.algorithm.SortUtil; Wrrcx(  
:4^\3~i1X  
/** hFiIW77 s2  
* @author treeroot piU /&  
* @since 2006-2-2 h3T9"w[  
* @version 1.0 -s6![eV  
*/ 5,)Q w  
public class QuickSort implements SortUtil.Sort{ 3!5Ur&  
@ym/27cRE  
/* (non-Javadoc) ^z,_+},a3T  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tzy'G"P|  
*/ )xb|3&+W  
public void sort(int[] data) { Rb(SBa  
quickSort(data,0,data.length-1); aR,}W\6M  
} TYI7<-Mp:[  
private void quickSort(int[] data,int i,int j){ >vuY+o;B  
int pivotIndex=(i+j)/2; wvrrMGU)a  
file://swap 7\ nf:.  
SortUtil.swap(data,pivotIndex,j);  9CCkqB/  
*D'$"@w3  
int k=partition(data,i-1,j,data[j]); q~o,WZG  
SortUtil.swap(data,k,j); +za8=`2o  
if((k-i)>1) quickSort(data,i,k-1); U^qt6$bK  
if((j-k)>1) quickSort(data,k+1,j); S1/`th  
w[6J `   
} Hcc"b0>}{  
/** %Th>C2\  
* @param data M-i_#EWP  
* @param i &Q}*+Y]G  
* @param j Xn~I=Ml d  
* @return &-5_f* {  
*/ _-5,zP R  
private int partition(int[] data, int l, int r,int pivot) { rp5(pV 7*  
do{ _z[#}d;k  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); P ~PIMkt  
SortUtil.swap(data,l,r); J)mh u}  
} %F kMv  
while(l SortUtil.swap(data,l,r); 4(-b x.V  
return l; 1 { , F  
} J[^}u_z  
M>M`baM1  
} erVO|<%=R  
%T7nO%p  
改进后的快速排序: 5s{ABJ\@V  
0euuT@_$  
package org.rut.util.algorithm.support; Q:ezifQ  
6%Be36<  
import org.rut.util.algorithm.SortUtil; `GXkF:f=  
?YeWH WM  
/** %%cHoprDa  
* @author treeroot ={hX}"*D  
* @since 2006-2-2 6rS$yjTX!  
* @version 1.0 9:I6( Zv0  
*/ %r4 q8-  
public class ImprovedQuickSort implements SortUtil.Sort { 6i0A9SN  
ZylJp8U  
private static int MAX_STACK_SIZE=4096; "TH6o: x  
private static int THRESHOLD=10; Bo5ZZY  
/* (non-Javadoc) 8( b tZt  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ! ZU2{  
*/ c$wsH25KH8  
public void sort(int[] data) { ~^+0  
int[] stack=new int[MAX_STACK_SIZE]; W d0NT@  
\P1=5rP  
int top=-1; Dde]I_f}  
int pivot; M4xi1M#%  
int pivotIndex,l,r; N25V ]  
;;A2!w{}[i  
stack[++top]=0; e L.(p k^<  
stack[++top]=data.length-1; s|y:UgD  
85;b9k&\M  
while(top>0){ GJqE!I,.  
int j=stack[top--]; 9;xM%  
int i=stack[top--]; TNJG#8n%Y  
N?X~w <  
pivotIndex=(i+j)/2; |pa$*/!NT  
pivot=data[pivotIndex]; uytE^  
@(C1_  
SortUtil.swap(data,pivotIndex,j); GElvz'S~  
9M"].~iNE  
file://partition W5#611  
l=i-1; J~(Wf%jM~  
r=j; 7^T^($+6s&  
do{ Hi]cxD*`  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); mw5?[@G-  
SortUtil.swap(data,l,r); XR!us/U`a  
} n<B<93f/  
while(l SortUtil.swap(data,l,r); /pp1~r.s?>  
SortUtil.swap(data,l,j); ,.gQ^^+=  
'EFyIVezg9  
if((l-i)>THRESHOLD){ } G<rt  
stack[++top]=i; {)AMwq  
stack[++top]=l-1; 4~U'TE @  
} ,ZS6jZ  
if((j-l)>THRESHOLD){ !a$ D4(`v  
stack[++top]=l+1; 2Hum!p:1  
stack[++top]=j; q64k7<C,  
} 16SOIT  
E\;ikX&1  
} +/D>|loRC  
file://new InsertSort().sort(data); >3u ]OSb  
insertSort(data); rWh6RYd<T  
} Q?AmOo-a  
/** N$[$;Fm:  
* @param data k=GG>]<i  
*/ 9C t`  
private void insertSort(int[] data) { ud fe  
int temp; Tlj:%yK2  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); fm~kM J  
} 7RDDdF E!  
} |j3'eW&=  
} 0j(M* sl  
<5=JE*s$NS  
} ,7XtH>2s  
SR*wvQnOx  
归并排序: H'F6$ypoS  
>%E([:$A  
package org.rut.util.algorithm.support; b3YO!cJ  
|y<),j6  
import org.rut.util.algorithm.SortUtil; 5d@t7[]  
2BCtJ`S`  
/** 5sPywk{  
* @author treeroot 5PcJZi^.l  
* @since 2006-2-2 tRpEF2  
* @version 1.0 %zU`XVNN+  
*/ $BmmNn#  
public class MergeSort implements SortUtil.Sort{ -*2Mf Mh  
NA,C Z  
/* (non-Javadoc) c#N<"cy>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  '8j$';&`  
*/ HG'{J^t  
public void sort(int[] data) { 7*DMVok:  
int[] temp=new int[data.length]; 1}ZKc=Pfu  
mergeSort(data,temp,0,data.length-1); (6v (9p  
} Yl;^ k0ZI  
09o~9z0  
private void mergeSort(int[] data,int[] temp,int l,int r){ }IEb yb  
int mid=(l+r)/2; G;3~2^lB\  
if(l==r) return ; zY+Fl~$S  
mergeSort(data,temp,l,mid); ?[x49Ux,P  
mergeSort(data,temp,mid+1,r); {K#NB_*To  
for(int i=l;i<=r;i++){ ~el3I=KC}  
temp=data; /J)l/oI  
} Jw~( G9G  
int i1=l; rwIe qV{:  
int i2=mid+1; i* R,QN)  
for(int cur=l;cur<=r;cur++){ fri0XxF  
if(i1==mid+1) mW%?>Z1=>d  
data[cur]=temp[i2++]; kj5Q\vr)  
else if(i2>r) BK,sc'b  
data[cur]=temp[i1++]; l<(Y_PE:  
else if(temp[i1] data[cur]=temp[i1++]; ":3 VJ(eY  
else N)% ;jh:T  
data[cur]=temp[i2++]; yk2!8  
} 3\;27&~gV  
} W(fr<<hL  
v6\F Q9|t  
} p1c3Q$>i  
(J"T]-[  
改进后的归并排序: I|$ RJkD  
}B7K@Wu#  
package org.rut.util.algorithm.support; G1 o70  
^7]"kg DA  
import org.rut.util.algorithm.SortUtil; fQ>4MKLw=d  
 QH]M   
/** ~tB;@e  
* @author treeroot .ut{,(5  
* @since 2006-2-2 t0:AScZY   
* @version 1.0 7 1W5.!  
*/ Fyyg`J  
public class ImprovedMergeSort implements SortUtil.Sort { {5*|C-WWtG  
XS~- vF  
private static final int THRESHOLD = 10; 0^'B3$>  
0i[zup  
/* \bCX=E-  
* (non-Javadoc) =rPrPb  
* Kt>X3m,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~#\i!I;RY}  
*/ 6pE :A@  
public void sort(int[] data) { h  x6;YV  
int[] temp=new int[data.length]; !S%6Uzsj  
mergeSort(data,temp,0,data.length-1); S~$'WA  
} :PbDU$x  
[=*E+Oc  
private void mergeSort(int[] data, int[] temp, int l, int r) { ihT~xt  
int i, j, k; rg(lCL&:S  
int mid = (l + r) / 2; Uh.Zi3X6}6  
if (l == r) +)nT|w45  
return; !\[+99F#  
if ((mid - l) >= THRESHOLD) ~`Qko-a&  
mergeSort(data, temp, l, mid); tNs~M4TVVH  
else #y]3LC#)^G  
insertSort(data, l, mid - l + 1); U3vEdw<lV  
if ((r - mid) > THRESHOLD) RaSz>-3d  
mergeSort(data, temp, mid + 1, r); e2$]g>  
else .V6-(d  
insertSort(data, mid + 1, r - mid); E& 36H  
A CNfS9M_w  
for (i = l; i <= mid; i++) { [AEBF2OIv  
temp = data; TY;U2.Ud  
} NCA {H^CL  
for (j = 1; j <= r - mid; j++) { @D`zKYwX1  
temp[r - j + 1] = data[j + mid]; D y6$J3 r  
} N$?cX(|7  
int a = temp[l]; !Q-wdzsp?  
int b = temp[r]; V9x8R  
for (i = l, j = r, k = l; k <= r; k++) { $mco0 %$  
if (a < b) { zvv:dC/p<  
data[k] = temp[i++]; )He#K+[}^4  
a = temp; fm1X1T.  
} else { dw@E)  
data[k] = temp[j--]; qUhRu>   
b = temp[j]; . ,NB( s`  
} KiLvI,9y  
} ;~HNpu$  
} 1H:ea7YVU  
oL/o*^  
/** (U.**9b;  
* @param data FYPz 4K  
* @param l E(+T*  
* @param i )&W|QH=AI  
*/ ^>~dlS  
private void insertSort(int[] data, int start, int len) { dhRJg"vrQ  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 7INk_2  
} >3;^l/2c  
} ](r ^.k,R  
} OsW"CF2  
} HOYq?40.R  
5!fSW2N  
堆排序: #G _/.h@  
x;$|#]+  
package org.rut.util.algorithm.support; ]S8LY.Az5  
n~z\?Y=*  
import org.rut.util.algorithm.SortUtil; G=M] 8+h  
 0V11#   
/** -oBI+v&  
* @author treeroot AfWl6a?T8:  
* @since 2006-2-2 rFag@Z"["  
* @version 1.0  :q2YBa  
*/ K, (65>86;  
public class HeapSort implements SortUtil.Sort{ 993d/z|DX  
Y4~vC[$ x'  
/* (non-Javadoc) y{rn-?`{  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C@dGWAG  
*/ F%6*Df;cSe  
public void sort(int[] data) { #0MK(Ut/  
MaxHeap h=new MaxHeap(); `6 Y33bQ  
h.init(data); xcSR{IZ  
for(int i=0;i h.remove(); >7-y#SkXdo  
System.arraycopy(h.queue,1,data,0,data.length); SR*Gqx  
} 9EgP9up{6!  
{Qtq7q.  
private static class MaxHeap{ :k!j"@r  
i^%-aBZ  
void init(int[] data){ eYP=T+  
this.queue=new int[data.length+1]; ]UUI~sFE  
for(int i=0;i queue[++size]=data; 7u%a/<  
fixUp(size); IlHY%8F{  
} kJ8vKcc  
} yuNfhK/#r  
:4;S"p  
private int size=0; <%!J?  
.:0M+Jr"  
private int[] queue; 7~.ZE   
HCc`  
public int get() { ]t/f<jKN^  
return queue[1]; :::>ro*R  
} 5-p.MGso  
CX+9R3pa  
public void remove() { g3rRhS  
SortUtil.swap(queue,1,size--); 7z<Cu<  
fixDown(1); QFzFL-H~N  
} Yn 1?#%%  
file://fixdown VN|G5*  
private void fixDown(int k) { a>b8- j=J  
int j; Qq0O0U  
while ((j = k << 1) <= size) { P3$,ca'  
if (j < size %26amp;%26amp; queue[j] j++; IxP^i{/1?  
if (queue[k]>queue[j]) file://不用交换 A7'bNd6f9  
break; "]<}Hy  
SortUtil.swap(queue,j,k); 1l]C5P}E  
k = j; STlPT5e.}  
} 4$i}Xk#3  
} oWD)+5. ]  
private void fixUp(int k) { t&f" jPu>  
while (k > 1) { cj^bh  
int j = k >> 1; L1MrrC  
if (queue[j]>queue[k]) !w=,p.?V=  
break; 6h@+?{F.  
SortUtil.swap(queue,j,k); $`Rxn*}V4#  
k = j; JjDS"hK#  
} @Z=wE3T@  
} Oo/8Y E @  
RO$*G jQd  
} j]4,6` b\  
'RQiLUF  
} \P?--AI q<  
bZXlJa`'S  
SortUtil: Bn_g-WrT  
IdmD.k0pJ  
package org.rut.util.algorithm; zi_[ V@Es/  
`OLB';D  
import org.rut.util.algorithm.support.BubbleSort; rT<1S?jR  
import org.rut.util.algorithm.support.HeapSort; } Ab _o#Zy  
import org.rut.util.algorithm.support.ImprovedMergeSort; 6>lW5U^yA\  
import org.rut.util.algorithm.support.ImprovedQuickSort; 'F<Sf:?.p  
import org.rut.util.algorithm.support.InsertSort; 5E.vje{U;  
import org.rut.util.algorithm.support.MergeSort; U 5clQiow  
import org.rut.util.algorithm.support.QuickSort; iW-t}}Z>B  
import org.rut.util.algorithm.support.SelectionSort; dL(4mR8  
import org.rut.util.algorithm.support.ShellSort; D0KELA cY  
]eD[4Y\#t  
/** }M="oN~w  
* @author treeroot YZ{;%&rB  
* @since 2006-2-2 d>~`j8,B  
* @version 1.0 e~*S4dKR  
*/ Ss+F9J  
public class SortUtil { LiF.w:}  
public final static int INSERT = 1; ^Wk0*.wg  
public final static int BUBBLE = 2; R1~7F{FW  
public final static int SELECTION = 3; ]Qc: Zy3  
public final static int SHELL = 4;  X)y*#U  
public final static int QUICK = 5; MKe *f%  
public final static int IMPROVED_QUICK = 6; I'P.K| "R  
public final static int MERGE = 7; P1e5uJkd  
public final static int IMPROVED_MERGE = 8; ~"\P~cg0J  
public final static int HEAP = 9; .;j"+Ef   
y "<JE<X  
public static void sort(int[] data) { . *Z#cq0  
sort(data, IMPROVED_QUICK); F-i&M1 \_  
} 78gob&p?  
private static String[] name={ eNivlJ,K|@  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" <%(f9j  
}; i'9e K O  
7~L|;^(  
private static Sort[] impl=new Sort[]{ %va[jJ  
new InsertSort(), U <|B7t4M  
new BubbleSort(), "hfw9Qm  
new SelectionSort(), 4bWfx _0W  
new ShellSort(), }el,^~  
new QuickSort(), &4[<F"W>47  
new ImprovedQuickSort(), `c>A >c|  
new MergeSort(), Aw5K3@Ltz  
new ImprovedMergeSort(), [10$a(g\x  
new HeapSort() rC~_:uXtE  
}; E=3#TBd  
\?[O,A  
public static String toString(int algorithm){ Jr|K>  
return name[algorithm-1]; YALyZ.d  
} w:n(pLc<  
Un~]Q?w  
public static void sort(int[] data, int algorithm) { z)r8?9u  
impl[algorithm-1].sort(data); \gjl^# ;  
} /Lj%A   
^9n}-Cqeq  
public static interface Sort { D~XU `;~u  
public void sort(int[] data); 7Z9.z 4\  
} "hJ7 Vv_  
01'y^`\xQ  
public static void swap(int[] data, int i, int j) { |yuGK  
int temp = data; V#+126  
data = data[j]; _3*: y/M_  
data[j] = temp; e_tZja2s  
} iz,]%<_PE  
} l A 0-?k  
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:
3+5=?,请输入中文答案:八 正确答案:八