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
  • 5303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。 VO/" ot  
插入排序: ?UQE;0 B  
Dm"GCV  
package org.rut.util.algorithm.support; >/eQjp?:  
@ 4j#X  
import org.rut.util.algorithm.SortUtil; DpoRR`  
/** C/tn0  
* @author treeroot -D`*$rp,  
* @since 2006-2-2 \<]nv}1O  
* @version 1.0 hA/K>Z  
*/ LH3PgGi,  
public class InsertSort implements SortUtil.Sort{ _Z@- q  
e:6R+8s2  
/* (non-Javadoc) gBf %9F  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {{SeD:hx  
*/ l%rwJLN1  
public void sort(int[] data) { 8lT.2H  
int temp; b_z;^y~  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); %7z  
} J}nE,U2  
} uJ{N?  
} Pv+[N{  
xW#r)aN]p  
} W{?7Pn?1`  
*R0Ae 4  
冒泡排序: OtrO"K  
yv[ s)c}  
package org.rut.util.algorithm.support; vB#&XK.aW  
Cn[`]  
import org.rut.util.algorithm.SortUtil; WpWnwQY`#  
\:'=ccf  
/** U;LbP -{B  
* @author treeroot AJI,>I,}}  
* @since 2006-2-2 Wu,'S;>C  
* @version 1.0 bH~ue5q  
*/ qR--lvO  
public class BubbleSort implements SortUtil.Sort{ K #}DXq  
BOoLs(p  
/* (non-Javadoc) 0Zs}y\J`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &w- QMj M>  
*/ i o 3qG6  
public void sort(int[] data) { +Y0Wiwr'  
int temp; ry/AF  
for(int i=0;i for(int j=data.length-1;j>i;j--){ C;y3?+6P$  
if(data[j] SortUtil.swap(data,j,j-1); bN8GRK )  
} kViX FPW  
} 3;u*_ ]N_  
} 3BDAvdJ4.  
} YrS%Yvhj0  
0-oR { {  
} f|cd_?|  
.|NF8Fj  
选择排序: -y1%c^36_J  
f.!)O@HzH  
package org.rut.util.algorithm.support; Rq%g5lK  
?PO~$dUc]  
import org.rut.util.algorithm.SortUtil; fq~ <^B  
k^}8=,j}  
/** XnHcU=~q  
* @author treeroot .nJErC##  
* @since 2006-2-2 loZJV M  
* @version 1.0 y<.0+YL-e+  
*/ 4/e-E^  
public class SelectionSort implements SortUtil.Sort { HW;,XzP=  
;X[mfg\  
/* Hc ]/0:  
* (non-Javadoc) w*Vf{[a'  
* uHkL$}C  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %K@D{ )r_^  
*/ G9TK)Nz  
public void sort(int[] data) { -n?}L#4%8  
int temp; hu%UEB  
for (int i = 0; i < data.length; i++) { RXP0 4  
int lowIndex = i; (Eq0 |"cj  
for (int j = data.length - 1; j > i; j--) { \Azl6`Em  
if (data[j] < data[lowIndex]) { q+>J'UGb  
lowIndex = j; %=xR$<D  
} z _~ 5c  
} UN>!#Ji:$  
SortUtil.swap(data,i,lowIndex); snT!3t  
} +/*g?Vt  
} 4&~ft  
(%ra~s?  
} ZRf-V9  
:vz_f$=  
Shell排序: .Wv2aJq  
T^x7w+  
package org.rut.util.algorithm.support; m64 6|G5  
J*Dj`@`4`g  
import org.rut.util.algorithm.SortUtil; -9Wx;u4]o  
oj /:  
/** S0eD 2  
* @author treeroot ]&`_5pS  
* @since 2006-2-2 H[#s&Fk2  
* @version 1.0 I8;pMr6  
*/ |kyxa2F{  
public class ShellSort implements SortUtil.Sort{ GJ edW   
~'2)E/IeV  
/* (non-Javadoc) ?dP3tLR  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `c ~Va/Yi  
*/ x_CB'Rr6  
public void sort(int[] data) { (.-3q;)6  
for(int i=data.length/2;i>2;i/=2){ Nc:, [8{l  
for(int j=0;j insertSort(data,j,i); /-Y*V*E  
} W2G`K+p  
} jbcJ\2  
insertSort(data,0,1); -h%;L5oJ2,  
} *|h-iA+9  
<*E{z r&  
/** a1R2ocC  
* @param data \Q7Nz2X  
* @param j R ,-y  
* @param i p:U9#(v)  
*/ =PWh,lWS  
private void insertSort(int[] data, int start, int inc) { B.vg2N  
int temp; :j)H;@[I  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); F/sXr(7  
} jFf2( AR  
} ( >zXapb2  
} qMD6LWJ  
*T' /5,rX2  
} z1XFc*5  
kFZw"5hb  
快速排序: C2NJrg4(  
12n5{'H2%  
package org.rut.util.algorithm.support; p8o ~  
jU |0!]  
import org.rut.util.algorithm.SortUtil; ; >Tko<  
gO_{(\w*  
/** KoZ" yD  
* @author treeroot [hSE^ m  
* @since 2006-2-2 Q]9H9?}N?  
* @version 1.0 Ymkk"y.w  
*/ <yz)iCU?  
public class QuickSort implements SortUtil.Sort{ hG .>>  
c-.t8X,5(~  
/* (non-Javadoc) I9O!CQCTt  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h$.y)v  
*/ s1. YH?A;  
public void sort(int[] data) { mk.:V64 >;  
quickSort(data,0,data.length-1); +a_eNl,  
} b3N>RPsHS  
private void quickSort(int[] data,int i,int j){ ig:,:KN  
int pivotIndex=(i+j)/2; A ^@:Ps  
file://swap nQ 2V  
SortUtil.swap(data,pivotIndex,j); k_?xi OSh  
ikf!7-,  
int k=partition(data,i-1,j,data[j]); W8+Daw1Nr  
SortUtil.swap(data,k,j); H)S" `j  
if((k-i)>1) quickSort(data,i,k-1); sJo]$/?F  
if((j-k)>1) quickSort(data,k+1,j); ,Q!sns[T  
`p1szZD&  
} Se/VOzzg  
/** %tEjf 3  
* @param data [<`K%1GQ  
* @param i ieXhOA  
* @param j +U_> Bo  
* @return 0PO'9#  
*/ [u\E*8  
private int partition(int[] data, int l, int r,int pivot) { v J9Uw  
do{ LDqq'}qK6  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); t &XH:w&j  
SortUtil.swap(data,l,r); )u?pqFH  
} +X6x CE  
while(l SortUtil.swap(data,l,r); ovJ#2_  
return l; m"*j J.MX  
} b-R!oP+vP  
g((glr)6M  
} M&o@~z0  
fQ c%a1'  
改进后的快速排序: MUsF/1  
Wh6jr=>G  
package org.rut.util.algorithm.support; d7s? c  
WtOpxAq  
import org.rut.util.algorithm.SortUtil; ,tJ%t#  
dYV'<  
/** S~fURn  
* @author treeroot SQx%CcW9d  
* @since 2006-2-2 bE:oF9J?  
* @version 1.0 `_Iy8rv:P  
*/ _|qJ)gD[  
public class ImprovedQuickSort implements SortUtil.Sort { \x?q!(;G2  
I@IZ1 /J,r  
private static int MAX_STACK_SIZE=4096; by; %k/  
private static int THRESHOLD=10; \cmt'b  
/* (non-Javadoc) >a7'_n_o  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )cOw9&#s  
*/ WBT/;),}:  
public void sort(int[] data) { R{Q*"sf  
int[] stack=new int[MAX_STACK_SIZE]; 1Q1NircJ  
,>%2`Z)  
int top=-1; A*#.7Np!"  
int pivot; mOji\qia  
int pivotIndex,l,r; 6vp\~J  
'F>eieO  
stack[++top]=0; "]h4L  
stack[++top]=data.length-1; ` b a}6D  
6)63Yp(  
while(top>0){ [r,a0s  
int j=stack[top--]; *y +T(73  
int i=stack[top--]; s&:LY"[`  
P__JN\{9  
pivotIndex=(i+j)/2; 8q9HQ4dsL  
pivot=data[pivotIndex]; iq'hel  
L -z37kG^  
SortUtil.swap(data,pivotIndex,j); xL8r'gV@  
6UK{0\0  
file://partition xG:eS:iT  
l=i-1; l_bvwo  
r=j; ~/Gx~P]  
do{ =kvfe" N0e  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); eF+:w:\h  
SortUtil.swap(data,l,r); g-`HKoKe  
} lnuf_;0  
while(l SortUtil.swap(data,l,r); bH4'j/3  
SortUtil.swap(data,l,j); hu}`,2  
9qc<m'MZ  
if((l-i)>THRESHOLD){ G"w ?{W @  
stack[++top]=i; _GEt:=DAP#  
stack[++top]=l-1; I3 /^{-n  
} ?/ xk  
if((j-l)>THRESHOLD){ gz fs9e  
stack[++top]=l+1; Yd]y`J?#  
stack[++top]=j; hTgWqp  
} PwP;+R};|  
IvuKpX>*  
} (A!+$}UR  
file://new InsertSort().sort(data); *J[3f]PBmR  
insertSort(data); CqW:m*c  
} }uWIF|h~  
/** 2ghTAsUx9  
* @param data (gN[<QL  
*/ Py2AnpYa  
private void insertSort(int[] data) { 7|4t;F!  
int temp; ]7<}EG  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); M- inlZNR  
} XaT9`L<  
} )~/;Xl#b-  
} n8W+q~sW%  
N-XOPwx'  
} ~)>O=nR  
#oBMA  
归并排序: GIXxOea1  
1k-YeQNe  
package org.rut.util.algorithm.support; VB 53n'  
<T]BSQk  
import org.rut.util.algorithm.SortUtil; ZlaU+Y(_[  
7ux0|l  
/** wz1fx>Q  
* @author treeroot /^_~NF#  
* @since 2006-2-2 #p'Xq }]  
* @version 1.0 +ob<? T  
*/ 9 0PF)U  
public class MergeSort implements SortUtil.Sort{ tQ!p<Q= $)  
ee7#PE]}  
/* (non-Javadoc) |'@c ~yc  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `PML 4P[  
*/ }dnO7K  
public void sort(int[] data) { cuv?[ M  
int[] temp=new int[data.length]; kU uDA><1  
mergeSort(data,temp,0,data.length-1); +/!kL0[v  
} Ik{[BRzUgt  
@tv3\eD  
private void mergeSort(int[] data,int[] temp,int l,int r){ poJ7q (  
int mid=(l+r)/2; VVY#g%(K  
if(l==r) return ; n-X;JYQW  
mergeSort(data,temp,l,mid); [C1 .*Q+l  
mergeSort(data,temp,mid+1,r); 'Xj9sAB  
for(int i=l;i<=r;i++){ &f12Q&jY7  
temp=data; w-f[h  
} M0Eq 7:Ba  
int i1=l; -M]NdgI  
int i2=mid+1; !~X[qT  
for(int cur=l;cur<=r;cur++){ ]/byz_7]  
if(i1==mid+1) >`\f,yq l6  
data[cur]=temp[i2++]; xd[GJ;xvs  
else if(i2>r) e,j2#wjor  
data[cur]=temp[i1++]; F_28q15~:  
else if(temp[i1] data[cur]=temp[i1++]; pPI'0x  
else ~W?F.  
data[cur]=temp[i2++]; UO3QwZ4j;  
} +Fn^@/?yC  
} luA k$Es  
[!^Q_O  
} LJ^n6 m|_  
kjCXP  
改进后的归并排序: B 4s^X`?z  
#jY\l&E  
package org.rut.util.algorithm.support; 9  Vn  
t9zPUR  
import org.rut.util.algorithm.SortUtil; f~U~f}Uw4  
2t9JiH  
/** U5rcI6  
* @author treeroot 2'R ;z< _  
* @since 2006-2-2 ?-'m#5i"  
* @version 1.0 /-Saz29f^Q  
*/ OnD!*jy  
public class ImprovedMergeSort implements SortUtil.Sort { (_:k s  
QU`M5{#  
private static final int THRESHOLD = 10; NO(^P+s  
93Z/|7  
/* f?KHp|  
* (non-Javadoc) DV={bcQ  
* U`{'-L.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "Jd!TLt\x  
*/ rL{3O4O  
public void sort(int[] data) { >Yr-aDV  
int[] temp=new int[data.length]; @UbH ;m  
mergeSort(data,temp,0,data.length-1); z ^e99dz  
} +ZuT\P&kR5  
aT9+] Ig  
private void mergeSort(int[] data, int[] temp, int l, int r) { qN5 ru2  
int i, j, k; gmCW__oR  
int mid = (l + r) / 2; <Mdyz!  
if (l == r) j@yK#==k  
return; +>zjTP7\e"  
if ((mid - l) >= THRESHOLD) 1 _A B; ^  
mergeSort(data, temp, l, mid); Ino$N|G[  
else [73 \jT  
insertSort(data, l, mid - l + 1); i=m5M]Ef  
if ((r - mid) > THRESHOLD) ,r$k79TI  
mergeSort(data, temp, mid + 1, r); M%*D}s-QE  
else HR.^ y$IE  
insertSort(data, mid + 1, r - mid); X@ zw;Se  
(lNV\Za  
for (i = l; i <= mid; i++) { B =EI&+F+  
temp = data; |rjHH<  
} rV yw1D  
for (j = 1; j <= r - mid; j++) { uL\b*rI  
temp[r - j + 1] = data[j + mid]; jkTh)Bm|'  
} P}YtT3. K  
int a = temp[l]; *u?QO4>  
int b = temp[r]; y. xt7 F1  
for (i = l, j = r, k = l; k <= r; k++) { R?%J   
if (a < b) { h=:*cqp4  
data[k] = temp[i++]; 4rcNBmA,  
a = temp; bOEO2v'cQ  
} else { xiWP^dIF  
data[k] = temp[j--]; kAu-=X  
b = temp[j]; 5=;LHS*   
} D=B$ Pv9%  
} 3YKJN4  
} xj6@85^  
7H$I9e  
/** [uJfmrEH  
* @param data 6MewQ{hi  
* @param l fGeDygV^`  
* @param i :i{Svb*_'  
*/ >i6sJ)2?>  
private void insertSort(int[] data, int start, int len) { l**gM  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); k-:wM`C  
} q <, b  
} #8Bs15aV  
} u-8b,$@Z>'  
} S.<aCN<@  
a#huK~$~  
堆排序: >yZe1CP  
J?oI%r7^  
package org.rut.util.algorithm.support; w5C$39e\G  
m;_gNh8Ee  
import org.rut.util.algorithm.SortUtil; >)Udb//  
6KvoHo  
/** wjq;9%eXk  
* @author treeroot Fjs:rZ#{  
* @since 2006-2-2 (G>S`B  
* @version 1.0 ab}Kt($  
*/ p\'0m0*   
public class HeapSort implements SortUtil.Sort{ K@f@vyw]  
As}e I!  
/* (non-Javadoc) Bf21u 9  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jkQ%b.a  
*/ %Tv2op  
public void sort(int[] data) {  46^9O 5J  
MaxHeap h=new MaxHeap(); ]+"25V'L  
h.init(data); gNWTzz<[f>  
for(int i=0;i h.remove(); \80W?9qj  
System.arraycopy(h.queue,1,data,0,data.length); \&6^c=2=  
} yd}1Mx  
&'V1p4'  
private static class MaxHeap{ qxQuXF>:#  
5LX%S.CW  
void init(int[] data){ O)aWTI  
this.queue=new int[data.length+1]; Uh w:XV@m  
for(int i=0;i queue[++size]=data; up@I,9C/  
fixUp(size); O x),jc[/  
} JK/gq}c  
} {!L25  
0Ym_l?]m[  
private int size=0; {f(RYj  
F"ua`ercI  
private int[] queue; lEYAq'=  
!U "?vSl  
public int get() { (-[73v-w  
return queue[1]; [0?W>A*h  
} Q1'4xWu  
_C%:AFPP>  
public void remove() { iD${7 _  
SortUtil.swap(queue,1,size--); Q H 57[Yg  
fixDown(1); k9_c<TSzu  
} &cSZ?0R  
file://fixdown PC<[ $~  
private void fixDown(int k) { V#,jUH|  
int j; @OGHS}-\  
while ((j = k << 1) <= size) { s qEOXO  
if (j < size %26amp;%26amp; queue[j] j++; =L]GQ=d  
if (queue[k]>queue[j]) file://不用交换 k^#+Wma7  
break; {g]Mx|5Q  
SortUtil.swap(queue,j,k); XQPlhpcv  
k = j; )>]@@Trx  
} NZL$#bRB  
} mHF? t.y  
private void fixUp(int k) { /Y`u4G()  
while (k > 1) { '/'dg5bfV  
int j = k >> 1; m>9j dsqB  
if (queue[j]>queue[k]) 9SQc ChG~j  
break; 2r"J"C  
SortUtil.swap(queue,j,k); P^57a?[`  
k = j; ' 4.T1i,  
} f 0r?cZ  
} AF\gB2^  
w(oi6kg  
} })y B2Q0  
gLK_b;:  
} ?J,K[.z  
Pk{%2\%&2  
SortUtil: `LOW)|6r`  
F #)@ c  
package org.rut.util.algorithm; U BWUq  
 \RS ,Y  
import org.rut.util.algorithm.support.BubbleSort; t`")Re_j  
import org.rut.util.algorithm.support.HeapSort; "O/ 6SV  
import org.rut.util.algorithm.support.ImprovedMergeSort; 6 hiWgbE  
import org.rut.util.algorithm.support.ImprovedQuickSort; 1d 1 ~`B  
import org.rut.util.algorithm.support.InsertSort; 4ATIF ;G'<  
import org.rut.util.algorithm.support.MergeSort; rHp2I6.0a  
import org.rut.util.algorithm.support.QuickSort; w2) @o >w  
import org.rut.util.algorithm.support.SelectionSort; 0fog/c#q(  
import org.rut.util.algorithm.support.ShellSort; BMO&(g  
&&ZX<wOM  
/** dCA! R"HD  
* @author treeroot tF:AqR: (~  
* @since 2006-2-2 *t300`x  
* @version 1.0 R.Kz nJ  
*/ T h!;zu^t  
public class SortUtil { -<l2 $&KS  
public final static int INSERT = 1; Wi@YJ  
public final static int BUBBLE = 2; oV'G67W  
public final static int SELECTION = 3; I+/fX0-Lib  
public final static int SHELL = 4; :E.T2na  
public final static int QUICK = 5; fb8)jd'~}O  
public final static int IMPROVED_QUICK = 6; !;Vqs/E  
public final static int MERGE = 7; Ez / W$U  
public final static int IMPROVED_MERGE = 8; MNf^ml[  
public final static int HEAP = 9; 1G8,Eah  
%J8uVD.2  
public static void sort(int[] data) { Ip |=NQL>  
sort(data, IMPROVED_QUICK); :n,x?bM  
} ?|Ey WAL  
private static String[] name={ v Q51-.g  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" BB imP  
}; #~ZaN;u  
s+E: 7T9P  
private static Sort[] impl=new Sort[]{ bT MgE Y  
new InsertSort(), 5KTPlqm0qF  
new BubbleSort(), LSrKi$   
new SelectionSort(), g?N^9B,$2  
new ShellSort(), _%u t#  
new QuickSort(), E:y^= Y  
new ImprovedQuickSort(), ^p~QHS/  
new MergeSort(), trZU_eouI  
new ImprovedMergeSort(), XXA.wPD-  
new HeapSort()  I)MRAo  
}; {f\{{JJ]  
Nw '$r  
public static String toString(int algorithm){ (>uA(#Z  
return name[algorithm-1]; 48Jt1^  
} =fJ  /6  
&$ fyY:<\  
public static void sort(int[] data, int algorithm) { WWTRB +1>  
impl[algorithm-1].sort(data); z.^_;Vql_  
} f!F5d1N  
Q <ulh s  
public static interface Sort { 29zMs9oKPP  
public void sort(int[] data); rv c%[HfW;  
} "m`}J*s"  
2BiFP||  
public static void swap(int[] data, int i, int j) { 1a mEQ  
int temp = data; ^kke  
data = data[j]; U6.hH%\}@  
data[j] = temp; 5Z:T9F4  
} JNo[<SZb  
} k2(k0HFR  
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