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
  • 7551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。 K<O1PrC  
插入排序: HL;y5o?  
S{7*uK3$  
package org.rut.util.algorithm.support; 4#$~gTc@  
qm-G=EX  
import org.rut.util.algorithm.SortUtil; hKq#i8py  
/**  A7*<,]qT  
* @author treeroot Vd2bG4*=  
* @since 2006-2-2 f?wn;;z`  
* @version 1.0 _L mDF8Q(  
*/ X6jW mo8]  
public class InsertSort implements SortUtil.Sort{ .]+oE$,!  
?*I2?   
/* (non-Javadoc) z116i?7EnV  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) zkXG%I4h  
*/  )_P|_(  
public void sort(int[] data) { sgdxr!1?y  
int temp; uV r6tb1  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); }(h_ztw  
} >t|u 8/P  
} =.9L/74@  
} fRp+-QvE  
g@!mV)c97  
} PN ,pEk|  
yUF<qB  
冒泡排序: -s`/5kD  
-/:N&6eRb  
package org.rut.util.algorithm.support; =v-BzF15  
C%LRb{|d  
import org.rut.util.algorithm.SortUtil; gVM9*3LH6  
D[2I_3[wp  
/** 6/ir("LK  
* @author treeroot f>k<I[C<  
* @since 2006-2-2 ]iewukB4  
* @version 1.0 0z@ KkU{Z  
*/ a %"mgCB  
public class BubbleSort implements SortUtil.Sort{ '!*,JG5_  
+H5= zf2  
/* (non-Javadoc) MA\"JAP/  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (9hCO-r  
*/ (0jT#&#  
public void sort(int[] data) { p\]Mf#B  
int temp; iUl5yq  
for(int i=0;i for(int j=data.length-1;j>i;j--){ V)M+dhl  
if(data[j] SortUtil.swap(data,j,j-1); Q}p+/-U\  
} }D_h*9  
} L>~wcoB  
} 3+mC96wN  
} OOy]:t4 /  
|~b.rKQt[  
} B#RwW,  
o2e aSG  
选择排序: rQ -pD  
(| DmYn!  
package org.rut.util.algorithm.support; S '>(4a  
+cQGX5 K  
import org.rut.util.algorithm.SortUtil; iHoQNog-!  
hsIC5@s3  
/** X~ n=U4s}O  
* @author treeroot 4.|-?qG  
* @since 2006-2-2 QXZjsa_|  
* @version 1.0 J;|r00M  
*/ 7`;55Se  
public class SelectionSort implements SortUtil.Sort { ~kUdHne (  
(q'w"qj  
/* KE3/sw0  
* (non-Javadoc) XQAdb"`  
* yyke"D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) T =r7FU  
*/ {3@lvoDT  
public void sort(int[] data) { 40}qf}8n t  
int temp; w '?xewx  
for (int i = 0; i < data.length; i++) { &z[39Q{~  
int lowIndex = i; NF`WA-W8@  
for (int j = data.length - 1; j > i; j--) { ?I{pv4G:  
if (data[j] < data[lowIndex]) { Ox;q +5  
lowIndex = j; %[(DFutJY+  
} f\O)+Vc  
} Ag1*.t|  
SortUtil.swap(data,i,lowIndex); o@TxDG  
} J(+I`  
} <fq?{z  
MW|Qop[  
} NZ:A?h2JR  
xQV5-VoFC  
Shell排序: OZ\]6]L  
t]?u<KD<  
package org.rut.util.algorithm.support; r8\"'4B1  
a nK7j2  
import org.rut.util.algorithm.SortUtil; 44T>Yp09  
8 x$BbK  
/** \ FW{&X9a  
* @author treeroot 0{bGVLp  
* @since 2006-2-2 ssVO+ T  
* @version 1.0 Qhlgu!  
*/ ,L ;ueAo  
public class ShellSort implements SortUtil.Sort{ 'V";"Ei  
j)IXe 0dMC  
/* (non-Javadoc) >SO !{  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C'x?riJ/  
*/ ,c#IxB/0  
public void sort(int[] data) { v'Y)~Kv@!  
for(int i=data.length/2;i>2;i/=2){ pE{ZWW[@+  
for(int j=0;j insertSort(data,j,i); ,H!E :k  
} L~N<<8?\   
} ]O Nf;RH  
insertSort(data,0,1); L}O_1+b  
} t}LV[bj1u  
2\h]*x% :  
/** rZ<n0w  
* @param data S;DqM;Q  
* @param j )-$Od2u2c  
* @param i 9-)D"ZhLe  
*/ ]k~k6#),;  
private void insertSort(int[] data, int start, int inc) { GtcY){7  
int temp; VfAC&3 %M  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); gf/$M[H!   
} @QiuCB  
} ( )1\b  
} Y<%)Im6v/  
;ru=z@  
} f\+MnZ4[Qj  
iB#xUSkS  
快速排序: dL%?k@R  
R$( FrbC  
package org.rut.util.algorithm.support; o33 wePx,  
C?6wIdp  
import org.rut.util.algorithm.SortUtil; J#DYZ>}Y  
6XyhOs%/  
/** II$B"-  
* @author treeroot &Rw4ub3  
* @since 2006-2-2 +4G]!tV6  
* @version 1.0 bdh6ii  
*/ wi'CBfr'z  
public class QuickSort implements SortUtil.Sort{ -r%4,4  
6gz !K"S  
/* (non-Javadoc) 9W3zcL8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) UH=pQm ^W  
*/ >`Xikn(  
public void sort(int[] data) { nNNs3h(Ss  
quickSort(data,0,data.length-1); G gmv(!  
} 5U)Ia>p  
private void quickSort(int[] data,int i,int j){ qcau(#I9.  
int pivotIndex=(i+j)/2; ut8v&i1?  
file://swap oujg( ^E  
SortUtil.swap(data,pivotIndex,j); |F)BKo D  
 ismx evD  
int k=partition(data,i-1,j,data[j]); E^kB|; Ki  
SortUtil.swap(data,k,j); \"!Fw)wj  
if((k-i)>1) quickSort(data,i,k-1); vmW > $P  
if((j-k)>1) quickSort(data,k+1,j); OwXw9  
&AR@5M u  
} ? <b>2j  
/** l-` M 9#  
* @param data 'Rbv3U  
* @param i +&?#Gdb  
* @param j ?.1yNO*s  
* @return #- S%aeB  
*/ ph*?y  
private int partition(int[] data, int l, int r,int pivot) { M*M,Z  
do{ ykFm$ 0m+I  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ]PWK^-4P  
SortUtil.swap(data,l,r); )kLTyx2&  
} W Z'UVUi8  
while(l SortUtil.swap(data,l,r); \\Ps*HN  
return l; #R2wt7vE  
} iTTUyftHT  
lu~<pfg  
} , y%!s27  
wrw4Uxq  
改进后的快速排序: +T]/4"^M  
M7U:UV)  
package org.rut.util.algorithm.support; BYjEo  
| Q0Wv8/  
import org.rut.util.algorithm.SortUtil; qffVF|7  
fmqHWu*wG  
/** #mhR^60,  
* @author treeroot # .1+-^TQk  
* @since 2006-2-2  bT(}=j  
* @version 1.0 H@ab]&  
*/ *F:f\9   
public class ImprovedQuickSort implements SortUtil.Sort { #0OW0:Q  
{O24:'K&  
private static int MAX_STACK_SIZE=4096; nPlg5&E  
private static int THRESHOLD=10; 05o +VF;z  
/* (non-Javadoc) ^FO&GM2a  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Er@'X0n  
*/ b;kgP`%%  
public void sort(int[] data) { ?@n, 9!  
int[] stack=new int[MAX_STACK_SIZE]; =3K}]3f  
ScN'|Ia.-  
int top=-1; &lnr?y^  
int pivot; ck0K^o v  
int pivotIndex,l,r; FU]jI[  
p./9^S  
stack[++top]=0; B=vBJC)  
stack[++top]=data.length-1; V)|]w[(Y  
HLYog+?  
while(top>0){  .7GTL  
int j=stack[top--]; .J?cV;:`  
int i=stack[top--]; V{qpha4'P  
94uAt&&b(  
pivotIndex=(i+j)/2; T#M_2qJ1=  
pivot=data[pivotIndex]; _x+)Tv  
;ZOu-B]q  
SortUtil.swap(data,pivotIndex,j); xWC*DKV  
`MD%VHQ9U  
file://partition 5?] Dn k.o  
l=i-1; 0oT~6BGm  
r=j; a!?JVhD&  
do{ 0Y|"Bo9k  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); tfz"9PV80  
SortUtil.swap(data,l,r); mz-sazgV  
} _!qi`A  
while(l SortUtil.swap(data,l,r); WdtZ{H  
SortUtil.swap(data,l,j); $"e$#<g  
Sbzx7 *X  
if((l-i)>THRESHOLD){ _bsAF^ ;  
stack[++top]=i; 3UR'*5|'  
stack[++top]=l-1; $[S)A0O  
}  $I*<gn9  
if((j-l)>THRESHOLD){ J?R\qEq%  
stack[++top]=l+1; c_~tCKAZ   
stack[++top]=j; Iu V7~w  
} @IE.@1  
T<ka4  
} ;Q.'u  
file://new InsertSort().sort(data);  Iz_#wO  
insertSort(data); L9Z\|L5  
} >~}}*yp  
/** KA/ ~q"N  
* @param data 9EFQo^ E  
*/ O\X=vh/D  
private void insertSort(int[] data) { Pl/B#Sbf'  
int temp; ]H-5    
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); (F+]h]KSi  
} zE8qU;  
} s=8$h:^9>  
} 16-1&WuY@  
!n^7&Y[N;  
} z(dDX%k@  
nvInq2T 1  
归并排序: ,R$U(,>_0  
 =v!'?  
package org.rut.util.algorithm.support; GeFu_7u!|  
U-.A+#<IT9  
import org.rut.util.algorithm.SortUtil; N2uTWT>  
/A82~  
/** WF_24Mw  
* @author treeroot P;bOtT --  
* @since 2006-2-2 wl N l|+ K  
* @version 1.0 b O9PpOk+z  
*/ KN< KZM  
public class MergeSort implements SortUtil.Sort{ tq.g4X ;_  
]|8*l]oc  
/* (non-Javadoc) Bk;/>gD  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Yu+;vjbK-  
*/ 19]O;  
public void sort(int[] data) { ` st^i$A  
int[] temp=new int[data.length]; 2{A/Fbk  
mergeSort(data,temp,0,data.length-1); 0f;`Zj0l8  
} =`+c}i?  
uB;PaZ G?{  
private void mergeSort(int[] data,int[] temp,int l,int r){ 5E!Wp[^  
int mid=(l+r)/2; [P3 Z"&  
if(l==r) return ; }JM02R~I  
mergeSort(data,temp,l,mid); ekPn`U  
mergeSort(data,temp,mid+1,r); ,|^ lqY  
for(int i=l;i<=r;i++){ H=@S+4_bK  
temp=data; S<o\.&J  
} \E8CC>Jd  
int i1=l; S{S.H?{F  
int i2=mid+1; 8,&pX ga  
for(int cur=l;cur<=r;cur++){ 1$v1:6  
if(i1==mid+1) 5e >qBw8t  
data[cur]=temp[i2++]; 1#V&'A  
else if(i2>r) oV;I8;#\J  
data[cur]=temp[i1++]; f-5}`)`.+  
else if(temp[i1] data[cur]=temp[i1++]; yv(\5)XF  
else H|8i|vbi  
data[cur]=temp[i2++]; GmdS~Fhp  
} ia*Bcx_RW+  
} +i(;@% kv  
+kM*BCPYE  
} OE(!^"5?[  
8z`Ne(h;  
改进后的归并排序: df8aM<&m3  
vq8&IL  
package org.rut.util.algorithm.support; iu+rg(*%  
,3bAlc8D7  
import org.rut.util.algorithm.SortUtil; oLc  
v"V?  
/** p K hV<MFB  
* @author treeroot n_ S)9C'=  
* @since 2006-2-2 pP*`b<|  
* @version 1.0 %0lJ(hm  
*/ 2 X`5YN;  
public class ImprovedMergeSort implements SortUtil.Sort { Uq=!>C8  
8?[#\KgH1  
private static final int THRESHOLD = 10; 6B&ERdoX  
G0Wv=tX|  
/* (R^Ca7F  
* (non-Javadoc) QvDD   
* tS sDW!!M  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) vFH1hm  
*/ c n^z=?  
public void sort(int[] data) { T`K4nU#  
int[] temp=new int[data.length]; P7y.:%DGD0  
mergeSort(data,temp,0,data.length-1); A>Xt 5vk+  
} T]y^PT<8?  
`t Zw(Z=h  
private void mergeSort(int[] data, int[] temp, int l, int r) { ]7 2wv#-  
int i, j, k; wKj0vMW  
int mid = (l + r) / 2; mVEHVz $  
if (l == r) EM0]"s@Lf  
return; ]V.0%Ccw;.  
if ((mid - l) >= THRESHOLD) xYD.j~  
mergeSort(data, temp, l, mid); M|\C@,F]8  
else |s{[<;  
insertSort(data, l, mid - l + 1); =(]||1 .  
if ((r - mid) > THRESHOLD) %z5P%F'5   
mergeSort(data, temp, mid + 1, r); PXDwTuyc  
else +HfZs"x  
insertSort(data, mid + 1, r - mid); /]hE?cmj  
5 $:  q  
for (i = l; i <= mid; i++) { 5}he)2*uD  
temp = data; Fy-|E>@]D  
} . J.| S4D  
for (j = 1; j <= r - mid; j++) { Y]9C8c)  
temp[r - j + 1] = data[j + mid]; 50Y^##]&  
} ?%wM8?  
int a = temp[l]; 4kdQ h]  
int b = temp[r]; SAtK 'Jx[  
for (i = l, j = r, k = l; k <= r; k++) { @ Yzc?+x  
if (a < b) { :yE7jXB  
data[k] = temp[i++]; }@NT#hD  
a = temp; 5d5q0bb  
} else { 07qL@![!  
data[k] = temp[j--]; W6L}T,epX  
b = temp[j]; [y1 x`WOk9  
} [cvtF(,  
} JN<IMH  
} "M4 gl  
Ilv _.  
/** "%fvA;  
* @param data k5TPzm=y{  
* @param l X7{ h/^  
* @param i q?2kD"%$  
*/ AZ& ]@Ao  
private void insertSort(int[] data, int start, int len) { 4Q5 c'  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); r-IG.ym3  
} }5a$Ka-  
} HA::(cXL  
} HT6+OK(~dJ  
} 3m59EI-p  
-3eHJccB  
堆排序: )kuw&SH,  
E1V;eoK.D  
package org.rut.util.algorithm.support; (#%R'9R v  
`o,D[Jd  
import org.rut.util.algorithm.SortUtil; LSN%k5G7.  
Tv`-h  
/** kr6^6I.  
* @author treeroot +oe%bk|A  
* @since 2006-2-2 84UI)nE:Q  
* @version 1.0 ?~s23%E  
*/ *d;D~"E<@  
public class HeapSort implements SortUtil.Sort{ }~3 %KHT  
v|K<3@J  
/* (non-Javadoc) h!UB#-  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y~ ( <H e?  
*/ ~lB:xVzn  
public void sort(int[] data) { EABy<i  
MaxHeap h=new MaxHeap();  cnwpd%]o  
h.init(data); 3^J~ts{*  
for(int i=0;i h.remove(); kEpCF:@A  
System.arraycopy(h.queue,1,data,0,data.length); ;^Y]nsd  
} ?f ]!~  
SFRQpQ06  
private static class MaxHeap{ pu9ub.  
OJ Y_u[  
void init(int[] data){ gBCO>nJws  
this.queue=new int[data.length+1]; qD?-&>dBWi  
for(int i=0;i queue[++size]=data; b+qdl`V d  
fixUp(size); ^lYa9k  
} dJYQdo^X  
} 4_B1qN  
T($6L7 j9  
private int size=0; -yH8bm'0"  
%HK\  
private int[] queue; %.3] F2_Q  
HLml:B[F(  
public int get() { D%=FCmL5@=  
return queue[1]; g<"k\qs7  
} e$+/;MRq  
qqR8E&Y{  
public void remove() { S0uEz;cE  
SortUtil.swap(queue,1,size--); !p#+I=  
fixDown(1); /"*eMe!=  
} 07:N)y,  
file://fixdown aur4Ky> :  
private void fixDown(int k) { V=LJ_T"z0  
int j; si|DxDx  
while ((j = k << 1) <= size) { wqyrs|P  
if (j < size %26amp;%26amp; queue[j] j++; Q+]9Glz9  
if (queue[k]>queue[j]) file://不用交换 y@?t[A#v  
break; :- Al}7  
SortUtil.swap(queue,j,k); j/<z[qr  
k = j; PWw2;3`-6w  
} /5Zt4&r  
} 4`Z8EV  
private void fixUp(int k) { |-SImxV  
while (k > 1) { -Bl !s^-'  
int j = k >> 1; *U69rbYI  
if (queue[j]>queue[k]) vQiKpO*  
break; = g[Cs*  
SortUtil.swap(queue,j,k); bEz1@"~ p  
k = j; %]15=7#'y  
} 5/>W(,5}  
} PF4"J^V  
F:o<E 42  
} Qso"jYl<  
V<+= t{  
} j~a"z40  
6YCFSvA#/  
SortUtil: [c=T)]E1  
klKd !  
package org.rut.util.algorithm; 6]*~!al?  
dY'mY~Tv  
import org.rut.util.algorithm.support.BubbleSort; `0qBuE_^h  
import org.rut.util.algorithm.support.HeapSort; fEB>3hI  
import org.rut.util.algorithm.support.ImprovedMergeSort; Pfv| K;3i  
import org.rut.util.algorithm.support.ImprovedQuickSort; keYvscRBI  
import org.rut.util.algorithm.support.InsertSort; =vaC?d3   
import org.rut.util.algorithm.support.MergeSort; dmkd.aP4  
import org.rut.util.algorithm.support.QuickSort; T1&^IO-F7$  
import org.rut.util.algorithm.support.SelectionSort; 8'Y7lOXS  
import org.rut.util.algorithm.support.ShellSort; 1sT%g}w@|  
8.'[>VzBL  
/** [ 4_JK  
* @author treeroot 4CT _MAj  
* @since 2006-2-2 > (.V(]{3y  
* @version 1.0 pRAdo="  
*/ %SX)Z i=O  
public class SortUtil { Q0\tK=Z/  
public final static int INSERT = 1; d,R  
public final static int BUBBLE = 2; }zkMo ?  
public final static int SELECTION = 3; *yx&4)Or  
public final static int SHELL = 4; HZH zjrx  
public final static int QUICK = 5; n4YedjHSN  
public final static int IMPROVED_QUICK = 6; y[W<vb+F  
public final static int MERGE = 7; E_[)z%&n2  
public final static int IMPROVED_MERGE = 8; *61+Fzr  
public final static int HEAP = 9; q*^F"D:?k  
4%3R}-'mh  
public static void sort(int[] data) { u6,NQ^4  
sort(data, IMPROVED_QUICK); I,:R~^qJ8v  
} G q" [5r"  
private static String[] name={ R6N+c\W  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" h5:>o  
}; m\}8N u  
EP|OKXRltA  
private static Sort[] impl=new Sort[]{ %L\buwjy$  
new InsertSort(), *r&q;ER  
new BubbleSort(), 5yHarC  
new SelectionSort(), xgX"5Czvv`  
new ShellSort(), =deqj^&@  
new QuickSort(), eoC@b/F4  
new ImprovedQuickSort(), i"h '^6M1  
new MergeSort(), aa'u5<<W  
new ImprovedMergeSort(), A@W/  
new HeapSort() WP@IV;i  
}; b~1]}9TJ  
}nQni?  
public static String toString(int algorithm){ Jf/X3\0N7  
return name[algorithm-1]; mv,<#<-W  
} "K"]/3`k-  
KVvzVQ1  
public static void sort(int[] data, int algorithm) { h27awO Q  
impl[algorithm-1].sort(data); F%8W*Y699  
} TH`zp]0  
_ 2WG6y;  
public static interface Sort { L+c7.l.yT  
public void sort(int[] data); qNLG-m,n<  
} :< )"G&  
q]-CTx$  
public static void swap(int[] data, int i, int j) { j#C1+Us  
int temp = data; b&y"[1`  
data = data[j]; DRBRs-D  
data[j] = temp; +0,{gDd+  
} u]B15mT?  
} Tk^J#};N  
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
批量上传需要先选择文件,再选择上传
认证码:
验证问题:
10+5=?,请输入中文答案:十五