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
  • 5363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。 N*{>8iFo4  
插入排序: =N?K)QD`  
;n2b$MB?nM  
package org.rut.util.algorithm.support; WoSJp5By$  
6>e YG <y{  
import org.rut.util.algorithm.SortUtil; \!J9|  
/** ] RLEyDB  
* @author treeroot _[p@V_my  
* @since 2006-2-2 O{&wqV5m"  
* @version 1.0 7a#zr_r  
*/ B,NHy C1i  
public class InsertSort implements SortUtil.Sort{ !fT3mI6u\  
TM*<hC  
/* (non-Javadoc) k 1sR^&{l  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) j"J[dlm2M  
*/ ^BN?iXQhN  
public void sort(int[] data) { K[Ao_v2g  
int temp; =>u9k:('9  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ];7/DM#Np  
} wPRs.(]_  
} Zt{\<5j  
} a";xG,U  
!<AY0fpY  
} g| M@/D l  
^hIKDc!.m  
冒泡排序: 4SGF8y@WU  
t=6Wk4  
package org.rut.util.algorithm.support; SHt#%3EU  
8pE0ANbq  
import org.rut.util.algorithm.SortUtil; MoP,a9p  
j|c6BdROl  
/** [*2|#KSCX  
* @author treeroot uJ_"gPO  
* @since 2006-2-2 @;T?R  
* @version 1.0 1Zi(5S)  
*/ W:XN!  
public class BubbleSort implements SortUtil.Sort{ $/XR/  
rxM)SC;P  
/* (non-Javadoc) ^[u*m%UB  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) B>{\qj)%  
*/ F3,djZq  
public void sort(int[] data) { dq U.2~9  
int temp; *JmU",X  
for(int i=0;i for(int j=data.length-1;j>i;j--){ <Q%:c4N  
if(data[j] SortUtil.swap(data,j,j-1); ?[~)D}] j  
} x}*Y =Xh  
} vo3[)BDbT  
} -7\6j#;l  
} ;DN:AgXP  
OK1f Y`$z  
} /&Vgo ~.J  
a"|\n_  
选择排序: u*C"d1v=  
C~([aH@-I  
package org.rut.util.algorithm.support; ab-MEN`5  
sXmo.{Ayb  
import org.rut.util.algorithm.SortUtil; y |0I3n]e  
/@~&zx&_  
/** y+D"LeCAad  
* @author treeroot 3V2w1CERE  
* @since 2006-2-2 j"Vb8}  
* @version 1.0 9CW8l0  
*/ j9IeqlL  
public class SelectionSort implements SortUtil.Sort { b/Q\ .!  
WKB@9Vfju  
/* /naGn@m5u  
* (non-Javadoc) 7IV:X _y  
* y9'F D5\s  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;th]/ G  
*/ !YJ^BI    
public void sort(int[] data) { /qalj\ud  
int temp; nM,5KHU4a  
for (int i = 0; i < data.length; i++) { [AHZOA   
int lowIndex = i; i <%  
for (int j = data.length - 1; j > i; j--) { I-`qo7dQ_S  
if (data[j] < data[lowIndex]) { W=)wiRQm  
lowIndex = j; c(y~,hN&p  
} <78LB/:  
} c?1 :='MC  
SortUtil.swap(data,i,lowIndex); xw%'R-  
} %hqhi@q#  
} GOeYw[Vh  
U~Ai'1?xz  
} $={WtR  
[va7+=[1=  
Shell排序: t<Z)D0.  
\p&a c&]  
package org.rut.util.algorithm.support; }:5>1FfX=  
;*8nd-\  
import org.rut.util.algorithm.SortUtil; !Ho=(6V  
D;l)&"|r?  
/** LN?b6s75U  
* @author treeroot 0Q_@2  
* @since 2006-2-2 al3[Ph5G  
* @version 1.0 nPj/C7j  
*/ LpJ_HU7@lk  
public class ShellSort implements SortUtil.Sort{ $*u{i4b  
<Gr775"  
/* (non-Javadoc) }nW)+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,UD,)ZPf[  
*/ }ST0?_0F*  
public void sort(int[] data) { yv!,iK9  
for(int i=data.length/2;i>2;i/=2){ =>7\s}QZ  
for(int j=0;j insertSort(data,j,i); bC mhlSNi  
} aF'9&A;q  
} t,8p}2,$  
insertSort(data,0,1); tR]1c  
} # Y*cLN`Y7  
jSj (ZU6  
/** }Pj3O~z  
* @param data 1jhGshhp  
* @param j 1K;i/  
* @param i $*Q_3]AY]  
*/ 1wqsGad+;  
private void insertSort(int[] data, int start, int inc) { |5}~n"R5  
int temp; q&-A}]  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); V %cU @  
} ]v^;]0vcr  
} U/JeEI%L  
} @zJhJ'~ Sl  
Z`l97$\  
} EPz$`#Sh"  
L|3wG Y9E  
快速排序: lj1wTiaI(  
h|!F'F{  
package org.rut.util.algorithm.support; n+EK}= DK  
O_p:`h:;M  
import org.rut.util.algorithm.SortUtil; oR=^NEJv  
Ass8c]H@  
/** <Dr*^GX>?  
* @author treeroot ,cvLvN8  
* @since 2006-2-2 gJy Ft8Z<  
* @version 1.0 QPH2TXw  
*/ M-2:$;D  
public class QuickSort implements SortUtil.Sort{ "$Wi SR  
<9S?wju4W'  
/* (non-Javadoc) KJwkkCE/=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I]`>m3SJ  
*/ ~[i,f0O,  
public void sort(int[] data) { CMIjc(m  
quickSort(data,0,data.length-1); PUUBn"U-  
} P7I,xcOm  
private void quickSort(int[] data,int i,int j){ O/IW.t  
int pivotIndex=(i+j)/2; #_+T@|r  
file://swap s q_N!  
SortUtil.swap(data,pivotIndex,j); eXaa'bTx  
GRC=G&G  
int k=partition(data,i-1,j,data[j]); \kiCczW_  
SortUtil.swap(data,k,j); H7e/6t<x  
if((k-i)>1) quickSort(data,i,k-1); 6/9h=-w&  
if((j-k)>1) quickSort(data,k+1,j); eo4<RDe<  
]u_^~  
} `F>1xMm  
/** n ?%3=~9  
* @param data VZ*Q|  
* @param i Dk|<&uVV  
* @param j E\r5!45r  
* @return Q~4o{"3.'  
*/ !}()mrIlP  
private int partition(int[] data, int l, int r,int pivot) { [FKmZzEy  
do{ t Ib?23K0  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); T[=XGAJ  
SortUtil.swap(data,l,r); _9Kdcoh  
} hnM|=[wM  
while(l SortUtil.swap(data,l,r); O\L(I079  
return l; <ZJ>jZV0*  
} i&^?p|eKa  
G:.Nq,513  
} kNW&rg  
3MC| O5R4  
改进后的快速排序: lX`)Avqa  
$&m^WrZaY  
package org.rut.util.algorithm.support; nm*!#hx  
$7aRf'  
import org.rut.util.algorithm.SortUtil; lC6#EU;  
Kbc-$ oneR  
/** L_jwM ^8  
* @author treeroot _Bh-*l?K>  
* @since 2006-2-2 o(~>a  
* @version 1.0 :&`Yz   
*/ c3|;'s  
public class ImprovedQuickSort implements SortUtil.Sort { yov:JnWo  
[^W4%S  
private static int MAX_STACK_SIZE=4096; \1RQ),5 %]  
private static int THRESHOLD=10; cW),Y|8  
/* (non-Javadoc)  !+IxPn  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) U<eVLfSij  
*/ Y[;Pl$  
public void sort(int[] data) { +I2P{7  
int[] stack=new int[MAX_STACK_SIZE]; pM\)f  
B4&@PX"'>,  
int top=-1; r{kV*^\E  
int pivot; r3w.$  
int pivotIndex,l,r; 5SX0g(C  
,u( g#T  
stack[++top]=0; u *z$I  
stack[++top]=data.length-1; 1z~;c|  
@l&5 |Cia  
while(top>0){ 6.~(oepu  
int j=stack[top--]; P]+^^ U  
int i=stack[top--]; Tp<=dH%$%"  
]k{cPK  
pivotIndex=(i+j)/2; ls,gQ]B:P  
pivot=data[pivotIndex]; ")HTUlcAe}  
sEdWBT 8  
SortUtil.swap(data,pivotIndex,j); l~&efAJ-$  
`R8~H7{I6  
file://partition ~MO'%'@  
l=i-1; .F)b9d[?  
r=j; '[5tc fG#z  
do{ F& H~JJ  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); h|%d=`P,  
SortUtil.swap(data,l,r); %M9^QHyo@  
} >S{1=N@Ev=  
while(l SortUtil.swap(data,l,r); kOR%<#:J  
SortUtil.swap(data,l,j); 8pDJz_F!{  
.'"+CKD.N  
if((l-i)>THRESHOLD){ ^F`FB..:y  
stack[++top]=i; 4ej$)AdW3  
stack[++top]=l-1; Qoq@=|7kxa  
} 7 m&M(ct  
if((j-l)>THRESHOLD){ a|5GC pp  
stack[++top]=l+1; WLNkO^zb  
stack[++top]=j; +zs;>'Sf  
} <g,k[  
O(/K@e  
} 1WcT>_$  
file://new InsertSort().sort(data); J~<:yBup}  
insertSort(data); 4pq>R  
} ?Dm!;Z+7  
/** BD=;4SLT  
* @param data )R ,*  
*/ %<DRrKt  
private void insertSort(int[] data) { Z#>k:v  
int temp; AGCqJ8`|T  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); RPaB4>  
} m^T$H_*;  
} 6Om-[^  
} Ko''G5+  
FPFt3XL  
} 9z_Gf]J~  
i>,5b1x~  
归并排序: RLulz|jC  
A1%V<im@Z  
package org.rut.util.algorithm.support; kf-ZE$S4  
N4fuV?E`  
import org.rut.util.algorithm.SortUtil; EN J]  
giaO7Qh~  
/** HE+VanY![  
* @author treeroot c!Pi)  
* @since 2006-2-2 p$[*GXR4  
* @version 1.0 6/@ cP/  
*/ 4)'5;|pI  
public class MergeSort implements SortUtil.Sort{ sd8o&6  
(: ZOoL  
/* (non-Javadoc) Q:-H U bB  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >PySd"u  
*/ Uk;SY[mU  
public void sort(int[] data) { 4ItXZo  
int[] temp=new int[data.length]; rM bb%d:  
mergeSort(data,temp,0,data.length-1); ,=6Eju#P  
} r*+9<8-ZX<  
&% M^:WT  
private void mergeSort(int[] data,int[] temp,int l,int r){ 0U`Ic_.  
int mid=(l+r)/2; m(g$T  
if(l==r) return ; B}P,sFghw  
mergeSort(data,temp,l,mid); eX_}KH-Q  
mergeSort(data,temp,mid+1,r); ~~5kAY-  
for(int i=l;i<=r;i++){ 8%`Sx[  
temp=data; gdCU1D\  
} <,rjU*"  
int i1=l; {b/AOR o  
int i2=mid+1; Z"!C  
for(int cur=l;cur<=r;cur++){ 6Mk@,\1  
if(i1==mid+1) `$@1NL7>  
data[cur]=temp[i2++]; /~ V"v"7E  
else if(i2>r) #C>pA<YJzK  
data[cur]=temp[i1++]; 1uXtBk6  
else if(temp[i1] data[cur]=temp[i1++]; TF=S \ Q  
else 2N)Ywqvj  
data[cur]=temp[i2++]; 'Fc&"(!||  
} X% _~9'#%  
} 8<.KWr  
#v(+3Hp  
} iNQk{n  
$(zJ  
改进后的归并排序: 1Kc* MS  
qM1$?U  
package org.rut.util.algorithm.support; &LL81u6=S  
`+zr PpX  
import org.rut.util.algorithm.SortUtil; 2EK\QWo  
^x/0*t5};z  
/** 8~2A"<{ub  
* @author treeroot }JlQQ  
* @since 2006-2-2 z>y,}#D?C  
* @version 1.0 9w0 ^=   
*/ n:<avl@o<  
public class ImprovedMergeSort implements SortUtil.Sort { {v`wQM[  
CSsb~/Oxu  
private static final int THRESHOLD = 10; {5%<@<? )  
`b7o  
/* 4El{2cfA  
* (non-Javadoc) b<5:7C9z  
* ) Fm  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `kj7I{'l%9  
*/ Yhlk#>I  
public void sort(int[] data) { Rf%ver  
int[] temp=new int[data.length]; B:x4H}`vh  
mergeSort(data,temp,0,data.length-1); P_ ZguNH  
} WMUw5h  
/VJ@`]jhDf  
private void mergeSort(int[] data, int[] temp, int l, int r) { `DA=';>Y  
int i, j, k; 9L&AbmIr  
int mid = (l + r) / 2; s{iYf :  
if (l == r) a[#4Oq/t$  
return; f%@Y XGf  
if ((mid - l) >= THRESHOLD) t"BpaA^gO  
mergeSort(data, temp, l, mid); Hss{Sb(  
else %%k[TO  
insertSort(data, l, mid - l + 1); np>*O}r*  
if ((r - mid) > THRESHOLD) jgGn"}  
mergeSort(data, temp, mid + 1, r); 2G'G45Q  
else +>:X4A *  
insertSort(data, mid + 1, r - mid); ;\&7smE[  
T Z>z5YTv  
for (i = l; i <= mid; i++) { ZjI^0D8  
temp = data; <XLATS8Y  
} |Xu7cCh$me  
for (j = 1; j <= r - mid; j++) {  UNhD  
temp[r - j + 1] = data[j + mid]; T:}Ed_m}q  
} k2;8~LqF  
int a = temp[l]; F%Mlid;1  
int b = temp[r]; 9X*q^u  
for (i = l, j = r, k = l; k <= r; k++) { ix$+NM<n  
if (a < b) { Jp,ohVRNq  
data[k] = temp[i++]; `\.n_nM  
a = temp; 0`qq"j[6a  
} else { sY#K=5R  
data[k] = temp[j--]; hnY^Z_v!  
b = temp[j]; (8EZ,V:  
} E=x\f "Z  
} H+: $ 7;  
} 5?I]\Tb  
Ic r'l$PE  
/** hi ]+D= S  
* @param data MBwp{ET!p  
* @param l Fvv6<E  
* @param i XSD7~X/:  
*/ Xg%zE  
private void insertSort(int[] data, int start, int len) { [%h^qJ  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); }5S2v+zE  
} 4Fz^[L}[  
} )O+9 v}2  
} 5GRN1Aov<  
} nC*/?y*9  
Ugs<WVp$  
堆排序: > voUh;L  
4^i*1&"  
package org.rut.util.algorithm.support; P.fgt>v]  
f~U|flL^  
import org.rut.util.algorithm.SortUtil; ~O|0.)71]  
gT+/CVj R  
/** X F40;urm  
* @author treeroot `kz_ q/K  
* @since 2006-2-2 !nYAyjf   
* @version 1.0 AzQ}}A;TSx  
*/ SB F3\  
public class HeapSort implements SortUtil.Sort{ yT,UM^'  
NCsUC  
/* (non-Javadoc) r%a$u%)oD  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;x7SY;0*  
*/ ![V<vIy  
public void sort(int[] data) { +0a',`yc  
MaxHeap h=new MaxHeap(); p1D-Q7F  
h.init(data); Ri3m438  
for(int i=0;i h.remove(); Z?@07Y[|K  
System.arraycopy(h.queue,1,data,0,data.length); Q^ F-8  
} ilHj%h*z  
h FjW.~B  
private static class MaxHeap{ @Ab<I  
v>e4a/  
void init(int[] data){ ~KNxAxyVi  
this.queue=new int[data.length+1]; E7D^6G&i  
for(int i=0;i queue[++size]=data; R.fRQ>rI  
fixUp(size); . =+7H`A  
} %8-S>'g'  
} C[s*Na-  
m7@`POI  
private int size=0; kOc'@;_O  
A} "*`y  
private int[] queue; < 37vWK1+  
SVpe^iQ]1\  
public int get() { q'@UZ$2  
return queue[1]; Op0 #9W  
} z/T ZOFaM  
M6I1`Lpf  
public void remove() { ae<KUThm.  
SortUtil.swap(queue,1,size--); 1`uIjXr(  
fixDown(1); _Yhpj}KZ  
} C/w;g3  
file://fixdown mB :lp=c`  
private void fixDown(int k) { Jv?e ?U  
int j; I2Us!W>6-  
while ((j = k << 1) <= size) { [_~U<   
if (j < size %26amp;%26amp; queue[j] j++; o60wB-y  
if (queue[k]>queue[j]) file://不用交换 `BvcI n4do  
break; %DN& K  
SortUtil.swap(queue,j,k); *83+!DV|  
k = j; &O[o;(}mFI  
} y^XwJX-f  
} 5_O.p3$tV  
private void fixUp(int k) { eu4x{NmQ  
while (k > 1) { hN}X11  
int j = k >> 1; vrbS-Z<S9  
if (queue[j]>queue[k]) wx1uduT)  
break; emaNmpg  
SortUtil.swap(queue,j,k); F0yh7MItV  
k = j; J2R<'(  
} QO,y/@Ph  
} [sad}@R7  
IS!+J.2  
} RWoiV10  
x O)nS _I  
} 7}#vANm  
78Gvc~j  
SortUtil: " pH+YqJ$  
eMF%!qUr  
package org.rut.util.algorithm; `b2 I)xC#  
%_u3Np  
import org.rut.util.algorithm.support.BubbleSort; x|Ei_hI-  
import org.rut.util.algorithm.support.HeapSort; v|"{x&I.  
import org.rut.util.algorithm.support.ImprovedMergeSort; =:2V4H(F  
import org.rut.util.algorithm.support.ImprovedQuickSort; 3)xV-Y9  
import org.rut.util.algorithm.support.InsertSort; -{w&ya4X  
import org.rut.util.algorithm.support.MergeSort; k-89(  
import org.rut.util.algorithm.support.QuickSort; Uarb [4OZ  
import org.rut.util.algorithm.support.SelectionSort; Wm A:"!~M  
import org.rut.util.algorithm.support.ShellSort; x88$#N>Q5  
l|&nGCW  
/** k`&mHSk-  
* @author treeroot (;n|>l?*  
* @since 2006-2-2 @M,_mX  
* @version 1.0 87HVD Di  
*/ 15zL,yo  
public class SortUtil { mrJQB I+  
public final static int INSERT = 1; 5P! ZJ3C  
public final static int BUBBLE = 2; m}XI?[!s  
public final static int SELECTION = 3; XJlun l)(K  
public final static int SHELL = 4; Jd%#eD*k9  
public final static int QUICK = 5; W$3p,VTMmB  
public final static int IMPROVED_QUICK = 6; ?T^$,1 -  
public final static int MERGE = 7; 1"'//0 7  
public final static int IMPROVED_MERGE = 8; LJiMtqg  
public final static int HEAP = 9; D( _a Xy  
"qF&%&#r'  
public static void sort(int[] data) { ^fx9R 5E$:  
sort(data, IMPROVED_QUICK); E`X+fJx  
} EfyF]cYL  
private static String[] name={ dRu@5 :BP  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" NLdUe32A  
}; >S~#E,Tg  
"#9WF}  
private static Sort[] impl=new Sort[]{ WOwIJrP  
new InsertSort(), lfGiw^  
new BubbleSort(), 3!d|K%J  
new SelectionSort(), uM\~*@   
new ShellSort(), x=H*"L=  
new QuickSort(), c)lK{DC  
new ImprovedQuickSort(), p#?1l/f"  
new MergeSort(), Zj}, VB*T  
new ImprovedMergeSort(), X{ Nif G  
new HeapSort() "NJ!A  
}; 8@r+)2  
?>,aq>2O$  
public static String toString(int algorithm){ B@F1!8l  
return name[algorithm-1]; ~MXPiZG?  
} |S4yol  
;hg]5r_  
public static void sort(int[] data, int algorithm) { jf})"fz-*  
impl[algorithm-1].sort(data); s=6w-'; V  
} }^QY<Cp|  
W=|B3}C?  
public static interface Sort { pa+ y(!G  
public void sort(int[] data); 6 o+zhi;E  
} C!.6:Aj  
G U!XD!!&  
public static void swap(int[] data, int i, int j) { +J^}"dG  
int temp = data; } FFW,x  
data = data[j]; R sujKh/  
data[j] = temp; 7?A}q mv  
} ]vlQNd?  
} 2V  
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