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
  • 8677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"$b%|  
插入排序: :#!F 7u  
$gD(MKR)~  
package org.rut.util.algorithm.support; ;Wrd=)Ka  
s)&R W#:X  
import org.rut.util.algorithm.SortUtil; 8-g$HXqs_#  
/** xzf)_ <  
* @author treeroot ]I*#R9  
* @since 2006-2-2 |sZ9 /G7  
* @version 1.0 #<V'gE  
*/ 5bqYi  
public class InsertSort implements SortUtil.Sort{ 4#Nd;gM2  
{Z~VO  
/* (non-Javadoc) 9787uj]Y}H  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V{aIhH>P  
*/ }y=n#%|i.  
public void sort(int[] data) { P@T $6%~  
int temp; /7HIL?r  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); fO}1(%}d  
} zZ"')+7q&%  
} wCEfR!i  
} N@`9 ~JS  
v_ F?x!  
} {~p %\  
x?k |i}Q  
冒泡排序: bA9dbe  
w!Lb;4x ?  
package org.rut.util.algorithm.support; nOoh2jUM  
l=OC?d*m  
import org.rut.util.algorithm.SortUtil; V@s/]|rf,  
gdn,nL`dP  
/** oO9iB:w  
* @author treeroot PL B=%[  
* @since 2006-2-2 ++RmaZ  
* @version 1.0 _@ 3O`  
*/ 5<ya;iK  
public class BubbleSort implements SortUtil.Sort{ 9mtC"M<   
b:d.Lf{y7  
/* (non-Javadoc) { dx yBDK  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Hn2Q1lF-ip  
*/ _xwfz]lb+  
public void sort(int[] data) { ' xq5tRg>  
int temp; KqIe8bi^G  
for(int i=0;i for(int j=data.length-1;j>i;j--){ K>p:?w  
if(data[j] SortUtil.swap(data,j,j-1); Uc;IPS  
} |P?B AWYeQ  
} $G([#N<  
} gmH0-W)=  
} HE .Dl7 {  
Qz90 mb  
} !{=%l+^.  
 k`zK  
选择排序: ON=ley  
y&|{x "  
package org.rut.util.algorithm.support; *} 4;1OVT  
8i 'jkyInT  
import org.rut.util.algorithm.SortUtil; leqSS}KU+  
K?<Odw'k  
/** SxQDqoA~  
* @author treeroot Z`h_oK#y15  
* @since 2006-2-2 6B P%&RL  
* @version 1.0 `-e}:9~q  
*/ d`*vJ#$> 2  
public class SelectionSort implements SortUtil.Sort { % ieAY-<"  
Z.f<6<gF  
/* J\},o|WI  
* (non-Javadoc) e/l?|+m 6  
* fA,!d J  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !: [` V!{  
*/ o[*ih\d  
public void sort(int[] data) { eh=bClk  
int temp; oO,p.X%  
for (int i = 0; i < data.length; i++) { q"vT]=Y}:  
int lowIndex = i; *\5H\s9<  
for (int j = data.length - 1; j > i; j--) { blS4AQ?b^  
if (data[j] < data[lowIndex]) { 1KEPD@0oxx  
lowIndex = j; [_GR'x'0x  
} M#IR=|P]  
} 6/C  
SortUtil.swap(data,i,lowIndex); J)~=b_'<  
} NWcF9z%@  
} D'=`O6pK  
JIkmtZv  
} (bXp1*0 ;  
wn.0U  
Shell排序: F= lj$?4{  
2 z l  
package org.rut.util.algorithm.support; 4}b:..Ku  
+DDvM;31w  
import org.rut.util.algorithm.SortUtil; DGUU1 vA  
hkm3\wg  
/** B9 {DO  
* @author treeroot ` OK }q  
* @since 2006-2-2 p`ZGV97  
* @version 1.0 t)ry)[Dxv  
*/ X> KsbOZ  
public class ShellSort implements SortUtil.Sort{ cE#Y,-f  
s;)tLJ!  
/* (non-Javadoc) ;<Q_4 V  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @J)vuGS  
*/ 7tnzgtal  
public void sort(int[] data) { `fHiY.-  
for(int i=data.length/2;i>2;i/=2){ :"^$7  
for(int j=0;j insertSort(data,j,i); 27gm_ *  
} B)iJH  
} &}?e:PEy  
insertSort(data,0,1); n[7zK'%Dxg  
} 2Ki/K(  
L~zet-3UNf  
/** 6ns_4, e  
* @param data +d15a%^`  
* @param j ~-zC8._w3r  
* @param i (\_d'Js(;  
*/ r +fzmb  
private void insertSort(int[] data, int start, int inc) { [Hf FC3U  
int temp; LdL\B0^l  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); w9BH>56/"  
} AEJm/8,T  
} U9s y]7  
} )}8%Gs4C  
 '%4,!  
} Ks-><-2+N  
aV.<<OS   
快速排序: 2;tp>,G9d  
N"{o3QmA  
package org.rut.util.algorithm.support; 4 n( f/  
}mK_d9dx  
import org.rut.util.algorithm.SortUtil; ^~od*:  
cR} =3|t  
/** ~+hG}7(:  
* @author treeroot l+,rc*-j0  
* @since 2006-2-2 X35hLp8 M  
* @version 1.0 Z5K,y19/~  
*/ 5 Da( DA  
public class QuickSort implements SortUtil.Sort{ [d}1Cq=_  
\~>#<@h  
/* (non-Javadoc) |Ca n  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YVi]f2F%  
*/ NgKNT}JDv  
public void sort(int[] data) { o=}?aC3I  
quickSort(data,0,data.length-1); ho. a93  
} 4{=Em5`HbO  
private void quickSort(int[] data,int i,int j){ BVDo5^&W  
int pivotIndex=(i+j)/2; jLg4_N1SD  
file://swap G.8ZISN/  
SortUtil.swap(data,pivotIndex,j); W:G*t4i  
 LvaF4Y2v  
int k=partition(data,i-1,j,data[j]); +X%yF{^m(  
SortUtil.swap(data,k,j); X-)6.[9f  
if((k-i)>1) quickSort(data,i,k-1); +$C5V,H ~  
if((j-k)>1) quickSort(data,k+1,j); tee%E=P  
q.4DwY5 L  
} b%6 _LK[  
/** ,==lgM2V>  
* @param data <Z Ls+|1  
* @param i qmGB~N|N  
* @param j *(J<~:V?  
* @return ;S/fe(C   
*/ .W\Fa2}%av  
private int partition(int[] data, int l, int r,int pivot) { IN"qJ3<k  
do{ E*zk?G|  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); +9t@eHJT1  
SortUtil.swap(data,l,r); fsu'W]f  
} FK>r c3 q  
while(l SortUtil.swap(data,l,r); mb/Y  
return l; ugz1R+f_4{  
} AyWCb  
g_`8K,6ln  
} #*fB~Os:  
iPao54Z  
改进后的快速排序: YB[P`Muj  
 c`TgxMu  
package org.rut.util.algorithm.support; Xv9C D  
};|'8'5  
import org.rut.util.algorithm.SortUtil; OF)X(bi4j  
fYpy5vc-dm  
/** q^gd1K<N  
* @author treeroot 8I*fPf  
* @since 2006-2-2 x\lua  
* @version 1.0 &" =inkh  
*/ v+Hu=RZE  
public class ImprovedQuickSort implements SortUtil.Sort { 6d,"GT  
f?)qZPM  
private static int MAX_STACK_SIZE=4096; =^6]N~*,D  
private static int THRESHOLD=10; /IgTmXxxj  
/* (non-Javadoc) ~&g:7f|X  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) D+RG,8Ht  
*/ W /IyF){  
public void sort(int[] data) { 8<xJmcTEwO  
int[] stack=new int[MAX_STACK_SIZE]; 27)$;1MT:  
l-5-Tf&j  
int top=-1; ]:F]VRPT  
int pivot; 0&<{o!>k  
int pivotIndex,l,r; O\x Uv  
3?C$Tl2G8  
stack[++top]=0; cdk;HK_Ve.  
stack[++top]=data.length-1; qr :[y  
s:M:Ff  
while(top>0){ H}A67J9x  
int j=stack[top--]; Oa{M9d,l  
int i=stack[top--]; ]^dXB 0  
?(F~9 V  
pivotIndex=(i+j)/2; \;4RD$J  
pivot=data[pivotIndex]; RP6QS)|  
bBGLf)fsTG  
SortUtil.swap(data,pivotIndex,j); t1xX B^.M{  
Fm:Ri$iT  
file://partition g8^$,  
l=i-1; rN OwB2e  
r=j; =5+:<e,&  
do{ Hh,\>= ':  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 8I JFQDGA9  
SortUtil.swap(data,l,r); N'IzHyo.  
} T<!TmG  
while(l SortUtil.swap(data,l,r); u)%J5TR.Y  
SortUtil.swap(data,l,j); By%aTuV$  
V_h, UYN  
if((l-i)>THRESHOLD){ yhZ2-*pTg  
stack[++top]=i; hD sFsG  
stack[++top]=l-1; Xq9%{'9  
} Nq-qks.&  
if((j-l)>THRESHOLD){ ~u.CY  
stack[++top]=l+1; RxcX\:  
stack[++top]=j; s(-$|f+s  
} a&9+<  
-K PbA`j+  
} TEv3;Z*N  
file://new InsertSort().sort(data); lRn>/7sg$  
insertSort(data); ^dRB(E}|)  
} ~r+;i,,X  
/** kz]qk15w  
* @param data %-> X$,Q :  
*/ A=>%KQc?  
private void insertSort(int[] data) { dQTJC %]O  
int temp; H&l/o  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); DdPU\ ZWR  
} Lk4gjs,V  
} 1InG%=jLo  
} Ea 0 j}  
1ih|b8)Dn  
} 7iT#dpF/A  
RWK|?FD\<  
归并排序:  9/`T]s"  
KftZ ^mk+p  
package org.rut.util.algorithm.support; uK1DC i  
.*i.Z   
import org.rut.util.algorithm.SortUtil; Xbe=_9l&p  
Sw%^&*J  
/** /GqW1tcO  
* @author treeroot [Q6PFdQ_JT  
* @since 2006-2-2 AfB,`l`k  
* @version 1.0 $zKf>[K  
*/ RX\%R  
public class MergeSort implements SortUtil.Sort{ Igrr"NuDZ  
TZ3"u@ 06  
/* (non-Javadoc) "]B:QeMeF!  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |L,_QXA2  
*/ Onz@A"  
public void sort(int[] data) { 67?O}~jbG  
int[] temp=new int[data.length]; \$$DM"+:;H  
mergeSort(data,temp,0,data.length-1); lXjhT  
} 0M-=3T  
7a\at)q/y  
private void mergeSort(int[] data,int[] temp,int l,int r){ ,Y  ./9F  
int mid=(l+r)/2; [2ez"4e  
if(l==r) return ; Ia %> c  
mergeSort(data,temp,l,mid); RR |Z,  
mergeSort(data,temp,mid+1,r); B'SLyf  
for(int i=l;i<=r;i++){ QZw`+KR  
temp=data; hR(\%p  
} Y,n&g45m  
int i1=l; E9<oA.  
int i2=mid+1; 5bBY[qp  
for(int cur=l;cur<=r;cur++){ epXvk &  
if(i1==mid+1) _<}oBh  
data[cur]=temp[i2++]; O4t0 VL$  
else if(i2>r) lsq\CavbM  
data[cur]=temp[i1++]; > &tmdE  
else if(temp[i1] data[cur]=temp[i1++]; (.^KuXd  
else 21_sg f?  
data[cur]=temp[i2++]; &!N9.e:-]  
} %0&59q]LM  
} ~T">)Y~+xI  
(J} tCqP  
}  OXDEU.  
/3#)  
改进后的归并排序: r^zra|]  
%1h%#/#[  
package org.rut.util.algorithm.support; `8M{13fv  
\3q Z0  
import org.rut.util.algorithm.SortUtil; a!guZUg6  
!A":L0[7n  
/** &Zy%Zz  
* @author treeroot ]?c9;U  
* @since 2006-2-2 @KJ~M3d0l  
* @version 1.0 "d"6.ND  
*/ cb82k[L6  
public class ImprovedMergeSort implements SortUtil.Sort { 46 [k9T  
JIL(\d  
private static final int THRESHOLD = 10; q!f'?yFYK  
'nJ,mZx  
/* a1#",%{I  
* (non-Javadoc) wjy<{I  
* ]Ub"NLYV  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) grVPu! B;  
*/ -RI&uFqOI  
public void sort(int[] data) { :yxP3e%rp  
int[] temp=new int[data.length]; 4m1@lnjp  
mergeSort(data,temp,0,data.length-1); OJ?U."Lxm$  
} N.'-9hv  
9KCeKT>v  
private void mergeSort(int[] data, int[] temp, int l, int r) { sU7fVke1   
int i, j, k; _kEU=)Xe  
int mid = (l + r) / 2; me@k~!e"z  
if (l == r) :6TLT-B  
return; [[s^rC<d  
if ((mid - l) >= THRESHOLD) ,eSII2,r4  
mergeSort(data, temp, l, mid); ,,8'29yEq  
else bt'lT  
insertSort(data, l, mid - l + 1); tZ>'tE   
if ((r - mid) > THRESHOLD) {c}n."`  
mergeSort(data, temp, mid + 1, r); '+&!;Jj,  
else f1AO<>I;  
insertSort(data, mid + 1, r - mid); VPvQ]}g6k  
\)M EM=U  
for (i = l; i <= mid; i++) { W#9A6ir>  
temp = data; j6GR-WQ]t  
} gY {/)"  
for (j = 1; j <= r - mid; j++) { %6Y\4Fe  
temp[r - j + 1] = data[j + mid]; EG!Nsb^,  
} P" aw--f(  
int a = temp[l]; R+# g_"1@p  
int b = temp[r]; /lLG|aAe  
for (i = l, j = r, k = l; k <= r; k++) { }6To(*  
if (a < b) { \2Yo*jE}  
data[k] = temp[i++]; /_Fi4wZ  
a = temp; L"L a|  
} else { Ri/D>[  
data[k] = temp[j--]; t vp kc;  
b = temp[j]; \SooIEl@  
} ~? n)/i("  
} ZMEYF!j N  
} uQl=?0 85  
| MXRNA~  
/** ob K6GG?ZE  
* @param data W]5sqtF;6  
* @param l V!f' O@p[  
* @param i 42Cc`a%U  
*/ Ubv_ a  
private void insertSort(int[] data, int start, int len) { 7 V=%&+  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 6'|NALW  
} iza.' Mm~  
} FT h/1"a  
} /t04}+,e ^  
} l(3\ekU!  
l8 XY  
堆排序: CTZ#QiNP  
to#T+d.(v  
package org.rut.util.algorithm.support; x8Nij: K#  
^}4ysw  
import org.rut.util.algorithm.SortUtil; -^,wQW:o)  
2+C 8w%F8  
/** y^:6D(SR  
* @author treeroot W;T (q~XK  
* @since 2006-2-2 ?mh0^G  
* @version 1.0 M5{vYk>,1Q  
*/ SXRND;-W8  
public class HeapSort implements SortUtil.Sort{ wV"C ,*V  
^ 20x\K  
/* (non-Javadoc) #1[Q?e4,0  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M(.]?+  
*/ ;f[@zo><r  
public void sort(int[] data) { H8$";T(I  
MaxHeap h=new MaxHeap(); |"Fm<  
h.init(data); QD^"cPC)mM  
for(int i=0;i h.remove(); t_iZ\_8  
System.arraycopy(h.queue,1,data,0,data.length); W C3b_ia  
} sx][X itR+  
ZIJTGa}B q  
private static class MaxHeap{ '?b.t2  
9 F|e .  
void init(int[] data){ l 5z8]/  
this.queue=new int[data.length+1]; "yPKdwP  
for(int i=0;i queue[++size]=data; du^r EMb%  
fixUp(size); l]mn4cn3  
} aR0v qRF  
} )}SiM{g  
3L%g2`  
private int size=0; b* o,re)Dj  
jAOD&@z1  
private int[] queue; 1~9AQ[]w8  
;aUI3n%  
public int get() { mG+hLRTXP  
return queue[1]; l&m'?. g f  
} "dBCS  
4W+%`x_U]  
public void remove() { +( V+XT  
SortUtil.swap(queue,1,size--); cP[]\r+Kj  
fixDown(1); }$1Aw%p^  
} Gq^#.o]  
file://fixdown x^JjoI2vf  
private void fixDown(int k) { 'W|@d8}h  
int j; -I{J]L$S #  
while ((j = k << 1) <= size) { U4,hEnJBT  
if (j < size %26amp;%26amp; queue[j] j++; C 6wlRvWn  
if (queue[k]>queue[j]) file://不用交换 -~imxPmZ  
break; Y^CbpG&-vC  
SortUtil.swap(queue,j,k); p$&6E\#7  
k = j; k<\]={ |=  
} 7x :j4  
} Y$6W~j  
private void fixUp(int k) { O7\ )C]A  
while (k > 1) { 0 ;ov^]  
int j = k >> 1; Ld YaJh~h  
if (queue[j]>queue[k]) |h65[9DMP  
break; -}r(75C  
SortUtil.swap(queue,j,k); YK|Y^TU^  
k = j; sYY=MD  
} od~`q4p1(-  
} js8\"  
7<c&)No;  
} S~4HFNe^&  
QprzlxB  
} <jRs/?1R  
Gq r(.  
SortUtil: ]qk/V:H:  
44kb  
package org.rut.util.algorithm; P1m PC  
r.;(Kx/M  
import org.rut.util.algorithm.support.BubbleSort; 8yc?9&/ |  
import org.rut.util.algorithm.support.HeapSort; zVs|go>F  
import org.rut.util.algorithm.support.ImprovedMergeSort; aXefi'!6  
import org.rut.util.algorithm.support.ImprovedQuickSort; QZ54Osdl  
import org.rut.util.algorithm.support.InsertSort; wuTCdBu6hU  
import org.rut.util.algorithm.support.MergeSort; iiZK^/P$  
import org.rut.util.algorithm.support.QuickSort; Q{Lsr,  
import org.rut.util.algorithm.support.SelectionSort; IRQ3>4hI  
import org.rut.util.algorithm.support.ShellSort; u3H2\<  
`?L-{VtM3*  
/** DeTZl+qm1E  
* @author treeroot SAGLLk07G  
* @since 2006-2-2 8M;G@ Q80  
* @version 1.0 |_;Vb  
*/ 0\y@etb:mf  
public class SortUtil { c{t[iXDG  
public final static int INSERT = 1; _A .?:'-  
public final static int BUBBLE = 2; U"v}br -kb  
public final static int SELECTION = 3; N:@C% UW}  
public final static int SHELL = 4; E0*'AZi&  
public final static int QUICK = 5; 4r [T pb  
public final static int IMPROVED_QUICK = 6; <ST#< $%  
public final static int MERGE = 7; k&P_ c  
public final static int IMPROVED_MERGE = 8; <~Tlx:  
public final static int HEAP = 9; S Yvifgp  
V F'! OPN  
public static void sort(int[] data) { hOx">yki  
sort(data, IMPROVED_QUICK); 3f :I<S7  
} U;:,$]+  
private static String[] name={ +xlxhF  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ~4iI G}Y<  
}; Th%1eLQ  
Tl3{)(ezx  
private static Sort[] impl=new Sort[]{ 0R2 AhA#  
new InsertSort(), 0Fh*8a}?b  
new BubbleSort(), 3Ecm Nwr  
new SelectionSort(), SJ-g2aAT  
new ShellSort(), hoihdVjv  
new QuickSort(), 97Qng*i  
new ImprovedQuickSort(), Sn/~R|3XA7  
new MergeSort(), GJItGq`)  
new ImprovedMergeSort(), (r.{v@h,dV  
new HeapSort() v;;X2 a1k  
}; puv*p %E  
^F~e?^s  
public static String toString(int algorithm){ >M^ 1m(  
return name[algorithm-1]; [lA[w Cw  
} 8P!dk5 ,,O  
Sh]x`3 ).  
public static void sort(int[] data, int algorithm) { fwRlqfi  
impl[algorithm-1].sort(data); L/GM~*Xp(O  
} < P5;8  
\wNn c"  
public static interface Sort { t{>66jm\R  
public void sort(int[] data); c+G: bb%p  
} 685o1c|  
IR%a+;Xs  
public static void swap(int[] data, int i, int j) { 9kP!O_  
int temp = data; v mOXB#7W  
data = data[j]; 9,'5~+7  
data[j] = temp; *<U&DOYV:  
} EBM\p+x&  
} 64 \ZOG\,  
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
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
10+5=?,请输入中文答案:十五