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
  • 6317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。 %u?>#  
插入排序: ;}7Rjl#  
-mAUo;O  
package org.rut.util.algorithm.support; NYyh|X:m  
gRrL[z  
import org.rut.util.algorithm.SortUtil; |^0XYBxQ  
/** H]P. x!I  
* @author treeroot J cPtwa;q@  
* @since 2006-2-2 *,3SGcYdJj  
* @version 1.0 D~biKrg?=  
*/ [6pD  
public class InsertSort implements SortUtil.Sort{ pN!}UqfI-  
'ZT^PV \  
/* (non-Javadoc) qJ;jfh!  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ATJWO 1CtB  
*/ XO`0>^g  
public void sort(int[] data) { dpJ_r>NI  
int temp; m/Oh\KlIl  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 4 kn|^  
} (gEBOol  
} u_hD}V^x4  
} b+,' ;bW  
Mxe}B'  
} 5G::wuxk  
S-P/+K6  
冒泡排序: e_#._Pi  
8hXl%{6d3  
package org.rut.util.algorithm.support; RzxNbeki[W  
hq%?=2'9?  
import org.rut.util.algorithm.SortUtil; o%v0h~tn  
>,TUZ  
/** V:qSy#e  
* @author treeroot ,3?Q(=j  
* @since 2006-2-2 J3,fk)  
* @version 1.0 !i{aMxUP  
*/ |h-QP#]/  
public class BubbleSort implements SortUtil.Sort{ 0Z~p%C<LW  
Z?}dq-Vh&  
/* (non-Javadoc) 'w!Cn>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 8?J&`e/  
*/ >go,K{cK6  
public void sort(int[] data) { 7"aN#;&  
int temp; 4\y/'`xm)6  
for(int i=0;i for(int j=data.length-1;j>i;j--){ SFO({w(  
if(data[j] SortUtil.swap(data,j,j-1); D'7SAFOM  
} E7NV ^4h  
} XDsx3Ws  
} esHg'8?U  
} U@g4w!$r  
)+l\w3^6  
} l9}3XI.=  
q'|rgT  
选择排序: t5[ #x4 p  
_hN\10ydY  
package org.rut.util.algorithm.support; V`X2> -Ex  
H#@^R(  
import org.rut.util.algorithm.SortUtil; Kw -gojZ  
p qfUW+>  
/** Y -pzy']4  
* @author treeroot .JYaH?  
* @since 2006-2-2 UADFnwR[R  
* @version 1.0 IT(lF  
*/ K&bzDzd`  
public class SelectionSort implements SortUtil.Sort { 4^TG>j?M  
L_vISy%\b  
/* >Nvjl~o5  
* (non-Javadoc) 6""G,"B  
* :QpuO1Gu  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^?U!pq -`  
*/ s8wmCzB~  
public void sort(int[] data) { 61. Brp.eP  
int temp; ]gmexa=(i  
for (int i = 0; i < data.length; i++) { xgbJ2Mh  
int lowIndex = i; {kp"nl$<  
for (int j = data.length - 1; j > i; j--) { 9)}[7Mg:C  
if (data[j] < data[lowIndex]) { pi /g H  
lowIndex = j; lV`Q{bd+  
} H(bs$C4F  
} K#EvFs`s;  
SortUtil.swap(data,i,lowIndex); p!>oo1&  
} E^QlJ8  
} #OIcLEn%  
t\Nq R  
} ?kWC}k{  
'h/CoTk@,  
Shell排序: a d.3A{  
=x!2Ak/)  
package org.rut.util.algorithm.support; I Y2)?"A  
} ~h3c|  
import org.rut.util.algorithm.SortUtil; M*z~gOZ  
U@gn;@\  
/** d\p,2  
* @author treeroot ;gBRCZ  
* @since 2006-2-2 0*rQ3Z  
* @version 1.0 N"8_S0=pw  
*/ |<#{"'/=  
public class ShellSort implements SortUtil.Sort{ AB F"~=aL  
ko Z  
/* (non-Javadoc) ,RJtm%w  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =; ^%(%Y{m  
*/ gXYI\.  
public void sort(int[] data) { T.@aep\"  
for(int i=data.length/2;i>2;i/=2){ WX=Jl<  
for(int j=0;j insertSort(data,j,i); %1H[Wh(U  
} 33#0J$j7  
} &{>cZh}\  
insertSort(data,0,1); {p;zuCF1  
} ~;1l9^N|  
(5R?#vj  
/** +s,Qmmb7)  
* @param data /4c\K-Z;  
* @param j  Jd%H2`  
* @param i Fz1_w$^  
*/  86(I^=  
private void insertSort(int[] data, int start, int inc) { I|>^1kr8w  
int temp; e?opkq\f  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); IIg^FZ*]_  
} qp/v^$EA  
} BnCbon)  
} .C&ktU4  
SF&BbjBE0  
} *"D3E7AO  
oX0D  
快速排序: >}!mQpAO  
O J/,pLYu  
package org.rut.util.algorithm.support; Ko;{I?c  
}D7I3]2>   
import org.rut.util.algorithm.SortUtil; b+@JY2dvj  
Gs9:6  
/** odPL {XFj  
* @author treeroot %K\?E98M  
* @since 2006-2-2 zoOaVV&1  
* @version 1.0 >?6&c  
*/ !OBEM1~ 1  
public class QuickSort implements SortUtil.Sort{ x*?x=^I{  
,17hGKM  
/* (non-Javadoc) : y5<go8e  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) kBYNf =  
*/ Hj:r[/  
public void sort(int[] data) { ;k7xMZs  
quickSort(data,0,data.length-1); L1i eaKw  
} ^zt-HDBR_  
private void quickSort(int[] data,int i,int j){ {.QEc0-  
int pivotIndex=(i+j)/2; @$LWWTr;  
file://swap AI,(z;{P  
SortUtil.swap(data,pivotIndex,j); Sg6"WV{<  
V#cqRE3XNi  
int k=partition(data,i-1,j,data[j]); D&}3$ 7>  
SortUtil.swap(data,k,j); Uc_'(IyO  
if((k-i)>1) quickSort(data,i,k-1); Z7_m)@%;kk  
if((j-k)>1) quickSort(data,k+1,j); "NgxkbDEbG  
tcLnN:  
} LXEfPLS  
/** !R1.7}O  
* @param data h&Efg   
* @param i mH Ic f{RG  
* @param j dZi(&s  
* @return oXxCXO,q  
*/ &e;=cAXG  
private int partition(int[] data, int l, int r,int pivot) { 2_zp:v  
do{ }RHn)}+  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); LUC4=kk4   
SortUtil.swap(data,l,r); l~6?kFy9h  
} o'W5|Gy  
while(l SortUtil.swap(data,l,r); uoHNn7W  
return l; %,D<O,N  
} &jsVw)Ue  
87=^J xy  
} bzX\IrJpOZ  
t%'Z<DmG+  
改进后的快速排序: gF[z fDm  
Md0 s K  
package org.rut.util.algorithm.support; EmODBTu+  
hjIT_{mk  
import org.rut.util.algorithm.SortUtil; i?fOK_d  
G8r``{C!  
/** $)RNKMZC}A  
* @author treeroot yto,>Utzg  
* @since 2006-2-2 -C<zF`jO  
* @version 1.0 (*oL+ef-C  
*/ =0G!f$7^i  
public class ImprovedQuickSort implements SortUtil.Sort { _~*,m#uxJ  
"FTfk  
private static int MAX_STACK_SIZE=4096; f. FYR|%tq  
private static int THRESHOLD=10; SE),":aY  
/* (non-Javadoc) ``OD.aY^s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'bo~%WA]n  
*/ XLL/4)  
public void sort(int[] data) { |!"2fI  
int[] stack=new int[MAX_STACK_SIZE]; Iz ;G*W18  
Yc,7tUz#  
int top=-1; Y7vA`kjD-C  
int pivot; 91$]Qg,lB  
int pivotIndex,l,r; %,Ap7X3:QT  
:{oZ~<  
stack[++top]=0; ~-PjW#J%  
stack[++top]=data.length-1; :cGt#d6  
{K9/H qH  
while(top>0){ _>9.v%5cs(  
int j=stack[top--]; Ti'}MC+0  
int i=stack[top--]; -u? S=h}  
!!Aj<*%  
pivotIndex=(i+j)/2; |7X:TfJ  
pivot=data[pivotIndex]; `;)\u  
ik!..9aB  
SortUtil.swap(data,pivotIndex,j); " t7M3i_  
LxpuhvIO  
file://partition 7oq[38zB  
l=i-1; '1$!jmY  
r=j; q*2N{  
do{ g_G6~-.9I  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); e_V O3"  
SortUtil.swap(data,l,r); %-<'QYYP  
} #/I[Jqf  
while(l SortUtil.swap(data,l,r); ]|sAK%/  
SortUtil.swap(data,l,j);  nv0]05.4  
t`+'r}=d  
if((l-i)>THRESHOLD){ h}]fn A  
stack[++top]=i; ~M\I;8ne  
stack[++top]=l-1; 7DIIx}A  
} jLpc Zb,  
if((j-l)>THRESHOLD){ de>v  
stack[++top]=l+1; "R3d+p  
stack[++top]=j; kI:}| _  
} 2D:fJ~|-[  
S-YM%8A[  
} |]aE<`D  
file://new InsertSort().sort(data); KyzFnVH3)  
insertSort(data); ~_s{0g]B  
} HW7; {QMg  
/** *X4PM\ck  
* @param data ] Puy!Q  
*/ bd<m%OM""  
private void insertSort(int[] data) { &NSY9'N,  
int temp; Fr%d}g  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); X+~ XJ  
} bk)g;+@  
} 'sxNDnGg  
} {'AWZ(  
59#lU~Kv  
} ($L Ll;1  
jaa"~5TO8  
归并排序: \TF!S"V  
%~jkB.\* )  
package org.rut.util.algorithm.support; <D::9c j  
H_0/f8GwnG  
import org.rut.util.algorithm.SortUtil; *FmTy|  
8X I?  
/** P(;?kg}0  
* @author treeroot VwEb7v,^0\  
* @since 2006-2-2 -CRra EXf8  
* @version 1.0 x ul]m*Z  
*/ IXb}AxB f  
public class MergeSort implements SortUtil.Sort{ =&},;VOh  
\4AM*lZ  
/* (non-Javadoc) ?_ dIIQ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tqy@iEz+  
*/ eYC^4g%l(  
public void sort(int[] data) { o,xxh  
int[] temp=new int[data.length]; h(F<h_  
mergeSort(data,temp,0,data.length-1); =i(?deR  
} hRq3C1 mR  
2CzaL,je[  
private void mergeSort(int[] data,int[] temp,int l,int r){ AQc,>{Lm  
int mid=(l+r)/2; ?X5]i#j[  
if(l==r) return ; UThB7(O,  
mergeSort(data,temp,l,mid); Nx-uQ^e*1  
mergeSort(data,temp,mid+1,r); 5l,ZoB8  
for(int i=l;i<=r;i++){ Fh*j#*oe  
temp=data; wQ%mN[  
} [|lB5gi4t!  
int i1=l; doB  
int i2=mid+1; 4&HXkRs:  
for(int cur=l;cur<=r;cur++){ b9"jtRTdz  
if(i1==mid+1)  ru`U'  
data[cur]=temp[i2++]; b]7GmRekl  
else if(i2>r) %J8|zKT5t  
data[cur]=temp[i1++]; @?[1_g_'P  
else if(temp[i1] data[cur]=temp[i1++]; !=y]Sv~h  
else rLU/W<F8  
data[cur]=temp[i2++]; A"aV'~>  
} Dk='+\  
} sO5?aB&  
;P;((2_X9  
} q|%(3,)ig  
zz^F k&  
改进后的归并排序: 5P .qXA"D  
JMCW}bA  
package org.rut.util.algorithm.support; qiZO _=0  
&*s0\ 8  
import org.rut.util.algorithm.SortUtil; !bC+TYsU  
(o J9k[(  
/**  `juLQH  
* @author treeroot .>(Q)"v  
* @since 2006-2-2 1RKW2RCaW_  
* @version 1.0 :0/q5_t  
*/ siTX_`0  
public class ImprovedMergeSort implements SortUtil.Sort { .@"q$\  
g!i45-n3gt  
private static final int THRESHOLD = 10; *FfMI  
up2+ s#  
/* (Z}>1WRju  
* (non-Javadoc) nkv(~ej(  
* @vMA=v7a  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) QaGlR`Y  
*/ 9 C{;h  
public void sort(int[] data) { 4G@nZn  
int[] temp=new int[data.length]; \j2;4O?`  
mergeSort(data,temp,0,data.length-1); j&UMjI9[  
} |e a~'N1  
}dxDt qb  
private void mergeSort(int[] data, int[] temp, int l, int r) { {ls+d x/  
int i, j, k; +p8BGNW,  
int mid = (l + r) / 2; W[[bV  
if (l == r) Fxc)}i`   
return; GdVhK:<>  
if ((mid - l) >= THRESHOLD) j,d*?'X  
mergeSort(data, temp, l, mid); X1tXqHJF}  
else o&hIHfZri  
insertSort(data, l, mid - l + 1); Jd,)a#<j  
if ((r - mid) > THRESHOLD) f1PN |  
mergeSort(data, temp, mid + 1, r); E`j-6:  
else i-U4RZE  
insertSort(data, mid + 1, r - mid); za'6Y*CGgX  
hCYQGx0  
for (i = l; i <= mid; i++) { E(Rh#+]Y5  
temp = data; =&dW(uyzY  
} a{[+<8=@1  
for (j = 1; j <= r - mid; j++) { AOp/d(vx5i  
temp[r - j + 1] = data[j + mid]; #tdf>?  
} WS2os Bc  
int a = temp[l]; ^Cv^yTj;&  
int b = temp[r]; ]l~V&#i_c  
for (i = l, j = r, k = l; k <= r; k++) { Sb".]>^  
if (a < b) { `d2,*KR  
data[k] = temp[i++]; ki;UY~  
a = temp; dP]1tAO,y  
} else { {m8+Wju}  
data[k] = temp[j--]; K={qU[_O  
b = temp[j]; OTB$V k  
} l$*=<tV  
} /$"[k2 N  
} QFPfIb/  
O;HY%  
/** GO! uwo:  
* @param data fWGOP~0  
* @param l 3E^M?N2oc  
* @param i T88Y qI  
*/ QIB>rQCceo  
private void insertSort(int[] data, int start, int len) { +]:2\TTGI  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); *FR$vLGn  
} qP*}.Sqk7  
} utlpY1#q/  
} r' BAT3  
} 'j%F]CK  
#kkY@k$4  
堆排序: RE3Z%;'  
2h {q h  
package org.rut.util.algorithm.support; E3/:.t  
 6qo^2  
import org.rut.util.algorithm.SortUtil; >cL{Ya}Rz  
qIwV q!=  
/** iF+RnWX\  
* @author treeroot p3^jGj@  
* @since 2006-2-2 >i,iOx|E-  
* @version 1.0 %ICglF R  
*/ )<4_:  
public class HeapSort implements SortUtil.Sort{ \nrP$  
\ u+xa{b|  
/* (non-Javadoc) aaWJ* >rJ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) UFn8kBk  
*/ 3b[jwCt  
public void sort(int[] data) { |4Ck;gg!j  
MaxHeap h=new MaxHeap(); 9O,,m~B  
h.init(data); k /EDc533d  
for(int i=0;i h.remove(); %bb~Y"  
System.arraycopy(h.queue,1,data,0,data.length); ~:sE:9$z  
} o[6y+<'o  
;/AG@$)  
private static class MaxHeap{ CPazEe1S  
S(eQ{rSs  
void init(int[] data){ Ja^ 5?Ar|  
this.queue=new int[data.length+1]; @nV5.r0W}B  
for(int i=0;i queue[++size]=data; !{_yaVF  
fixUp(size); ;eB ~H[S/  
} 9vGs;  
} K7vw3UwGN  
Y\/gU8w/  
private int size=0; |E/L.gdP7  
\6j^k Y=  
private int[] queue; q$ghLGz  
\Mx JH[  
public int get() { @fn6<3  
return queue[1]; &$fbP5uAZ  
} = Rc"^oS  
`kBnSio~  
public void remove() { Ln#a<Rx.E7  
SortUtil.swap(queue,1,size--); ,i`h x, Rg  
fixDown(1); \Xg?Ug*9w  
} )+O r  
file://fixdown s'a=_cN  
private void fixDown(int k) { fJ80tt?r  
int j; %EbiMo ]3B  
while ((j = k << 1) <= size) { :9d\Uj,  
if (j < size %26amp;%26amp; queue[j] j++; ZKbDp~  
if (queue[k]>queue[j]) file://不用交换 Db03Nk>#  
break; \ a-CN>  
SortUtil.swap(queue,j,k); :pKG\A  
k = j; o#i ]"  
} j^u[F"  
} |DG@ht  
private void fixUp(int k) { +/'<z  
while (k > 1) { )q?$p9  
int j = k >> 1; @] .VQ<X|0  
if (queue[j]>queue[k]) Q2'eQ0W{ o  
break; {/M\Q@j  
SortUtil.swap(queue,j,k); r:.uBc&_  
k = j; \gKdD S  
} $@[)nvV\  
} }~enEZ  
%JoxYy-  
} 6n w&$I  
pVokgUrC  
} Wpm9`K  
{K.rl%_|N  
SortUtil: {gkwOMW  
2)LX^?7R  
package org.rut.util.algorithm; z& 'f/w8  
f~gSJ< t4  
import org.rut.util.algorithm.support.BubbleSort; Z$2L~j"=!  
import org.rut.util.algorithm.support.HeapSort; ]if;A)'  
import org.rut.util.algorithm.support.ImprovedMergeSort; 6&!l'[hU  
import org.rut.util.algorithm.support.ImprovedQuickSort; (.^8^uc 7X  
import org.rut.util.algorithm.support.InsertSort; [ #]jC[  
import org.rut.util.algorithm.support.MergeSort; z%2w(&1  
import org.rut.util.algorithm.support.QuickSort; wL eHQ]  
import org.rut.util.algorithm.support.SelectionSort; !]DuZ=  
import org.rut.util.algorithm.support.ShellSort; )bW<8f2  
X=_Z(;<&  
/** kO3 `54  
* @author treeroot H @!#;w  
* @since 2006-2-2 Gp1EJ2d8  
* @version 1.0 m6so]xr  
*/ )A83A<~  
public class SortUtil { ph^4GBR   
public final static int INSERT = 1; qC j*>D  
public final static int BUBBLE = 2; !kh{9I>M  
public final static int SELECTION = 3; q+/l"&j.  
public final static int SHELL = 4; |zMqJ.qu  
public final static int QUICK = 5; jU$Y>S>l  
public final static int IMPROVED_QUICK = 6; m "]!I~jd  
public final static int MERGE = 7; AVpuMNd@  
public final static int IMPROVED_MERGE = 8; Ow3a0cF[9  
public final static int HEAP = 9; 5#u.pu  
3X'WR]  
public static void sort(int[] data) { eY3=|RR  
sort(data, IMPROVED_QUICK); |!b9b(_j9  
} ?M"HXu  
private static String[] name={ IQ{?_'  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" UX}*X`{  
}; 3}4#I_<$F@  
@&:VKpu\  
private static Sort[] impl=new Sort[]{ )5i* /I\  
new InsertSort(), p":@>v?  
new BubbleSort(), )k%M.{&bji  
new SelectionSort(), u9}!Gq  
new ShellSort(), AF[>fMI  
new QuickSort(), qBiyGlu4  
new ImprovedQuickSort(), x^2 W?<  
new MergeSort(), cdp{W  
new ImprovedMergeSort(), YX `%A6  
new HeapSort() qhxC 5f4Z  
}; 0WS|~?OR@  
%gTVW!q  
public static String toString(int algorithm){ $[Q cEk  
return name[algorithm-1]; sX~45u \  
} 51/sTx<Z}  
Vj7Hgc-,  
public static void sort(int[] data, int algorithm) { ohTd'+Lm  
impl[algorithm-1].sort(data); 9RcM$[~  
} r /yHmEk&  
>nNl^ yqW  
public static interface Sort { T{;=#rG<  
public void sort(int[] data); ^je528%H  
} KL~AzLI  
X!7Xg  
public static void swap(int[] data, int i, int j) { }z{wQ\  
int temp = data; nk>8SW^  
data = data[j]; q (1r<2  
data[j] = temp; _=T]PSauI  
} + o{*r#  
} M\jB)@)  
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:
10+5=?,请输入中文答案:十五