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
  • 4885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。 )PuFuf(wz  
插入排序: r^paD2&}  
j4`0hnqI  
package org.rut.util.algorithm.support; QYjsDL><  
MET' (m  
import org.rut.util.algorithm.SortUtil; zhRB,1iG  
/** HxK80mJ  
* @author treeroot \BZhf?9U  
* @since 2006-2-2 $#S&QHyEe  
* @version 1.0 Sf7\;^  
*/ N@1+O,o  
public class InsertSort implements SortUtil.Sort{ _FVcx7l!u  
~r`9+b[9{  
/* (non-Javadoc) TQ*1L:X7M&  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) uPG4V2  
*/ DSk/q-'u  
public void sort(int[] data) { M .JoHH  
int temp; 5$&%re!{Z  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); au=o6WRa  
} _Khc3Jo  
} \$\ENQ;Nk  
} Q[pV!CH  
,Pjew%  
} .my0|4CQ#@  
EzV96+  
冒泡排序: "C19b:4H  
\cUNsB5  
package org.rut.util.algorithm.support; I}6\Sv=  
`[)YEg s  
import org.rut.util.algorithm.SortUtil; & <J[Q%2  
S=nzw-(I  
/** 5>j)kx=J9  
* @author treeroot )Es"LP]  
* @since 2006-2-2 h`k"A7M  
* @version 1.0 9Hu/u=vB<  
*/ &LVn6zAba  
public class BubbleSort implements SortUtil.Sort{ PGBQn#c<  
U,q\em R  
/* (non-Javadoc) 5nO% Ke=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M:3h e  
*/ }36QsH8  
public void sort(int[] data) { ;u(<h?%e  
int temp; M8Z2Pg\0  
for(int i=0;i for(int j=data.length-1;j>i;j--){ "WK{ >T  
if(data[j] SortUtil.swap(data,j,j-1); [4C:r!  
} [uls8 "^/j  
} ;b(p=\i  
} ,%Up0Rr,  
} MP 2~;T}~  
"7V2lu  
} Dzs[GAQ]  
YY!6/5*/]  
选择排序: c8>hc V  
S9`flo  
package org.rut.util.algorithm.support; e\JojaV  
R>"OXFaE  
import org.rut.util.algorithm.SortUtil; y+6o{`0  
pg%aI,  
/** y2vUthRwo  
* @author treeroot dW~*e2nq  
* @since 2006-2-2 j;3[KLmuK%  
* @version 1.0 o1Q7Th  
*/ #x3ujJ  
public class SelectionSort implements SortUtil.Sort { mPP`xL?T  
F[[TWf/  
/* 5~WGZc  
* (non-Javadoc) I{ :(z3  
* Ve!fU  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !M]\I&  
*/ sZm$|T0  
public void sort(int[] data) { ,NVsn  
int temp; k]HEhY  
for (int i = 0; i < data.length; i++) { )Ocl=H|=  
int lowIndex = i; _Bp1co85MQ  
for (int j = data.length - 1; j > i; j--) { _b.qkTWUB  
if (data[j] < data[lowIndex]) { .]7Qu;L  
lowIndex = j; 09kt[  
} h!:~f-@j4  
} hk;7:G  
SortUtil.swap(data,i,lowIndex); % v7[[U{T  
} y K2^Y]Ku?  
} P*Tx14xe4  
7C2&NyWJ  
} >Ll$p 0W  
)V:]g\t  
Shell排序: pd8Nke  
JEgx@};O  
package org.rut.util.algorithm.support; B7<Kc  
>P $;79<  
import org.rut.util.algorithm.SortUtil; ~JD nKo  
`zt_7MD  
/** Bv. `R0e&  
* @author treeroot `z )N,fF  
* @since 2006-2-2 Ttc[Q]Ri  
* @version 1.0 vp crPVA^  
*/ YxinE`u~  
public class ShellSort implements SortUtil.Sort{ F]t (%{#W  
UaViI/ks  
/* (non-Javadoc) { TRsd  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) z)=+ F]  
*/ XNb ZNaAd  
public void sort(int[] data) { ,qrQ"r9  
for(int i=data.length/2;i>2;i/=2){ GS Q/NYK  
for(int j=0;j insertSort(data,j,i); 7ei|XfR  
} 3^ ~KB'RZ  
} V{&rQ@{W  
insertSort(data,0,1); [mr9(m[F  
} m7GR[MR  
,SiY;(b=\  
/** U*P. :BvG  
* @param data xvSuPP4 m  
* @param j &gE 75B  
* @param i zf>5,k'x'A  
*/ \7 NpT}dj  
private void insertSort(int[] data, int start, int inc) { U(;&(W"M  
int temp; D.6,VY H  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); -+em!g'  
} l-$uHHyu*  
} hyT1xa  
} \VFHHi:I  
W|,V50K  
} W$Yc'E ;  
Pv+5K*"7Cg  
快速排序: )& <=.q  
w7n373y%  
package org.rut.util.algorithm.support; uH;-z_Wpn!  
D'hW|  
import org.rut.util.algorithm.SortUtil; D\YE^8/  
!GQ\"Ufs>  
/** 2JS`Wqy  
* @author treeroot Z0>DNmH*  
* @since 2006-2-2 @hImk`&[N  
* @version 1.0 #vqo -y7@  
*/ KyO8A2'U  
public class QuickSort implements SortUtil.Sort{ $VQtwuYt  
=FT98H2*|  
/* (non-Javadoc) z]bwnJfd  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {gaai  
*/ (x$9~;<S*d  
public void sort(int[] data) { |fY/i] Ax  
quickSort(data,0,data.length-1); 34R!x6W0  
} zPKr/  
private void quickSort(int[] data,int i,int j){ @AYo-gf  
int pivotIndex=(i+j)/2; =?(~aV  
file://swap `K >?ju"  
SortUtil.swap(data,pivotIndex,j); oo$MWN8a>r  
J!*/a'Cv  
int k=partition(data,i-1,j,data[j]); 'XUKN/.  
SortUtil.swap(data,k,j); ,xT?mt}P  
if((k-i)>1) quickSort(data,i,k-1); e%>b+ Sv  
if((j-k)>1) quickSort(data,k+1,j); \OpoBXh  
*I?Eb-!t  
} ?<yM7O,4  
/** @&hnL9D8lL  
* @param data WmQ 01v  
* @param i )*d W=r/$V  
* @param j sfVf@0g  
* @return 5]1h8PW!Y  
*/ pBC<u  
private int partition(int[] data, int l, int r,int pivot) { xT)psM'CL  
do{ .\qj;20W  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot);  X}6#II  
SortUtil.swap(data,l,r); *$M'`vj:  
} [!VOw@uz  
while(l SortUtil.swap(data,l,r); U#o'H @  
return l; 6R29$D|HFO  
} 7.+#zyF  
9=/N|m8.  
} [;b=A  
kV Rn`n0  
改进后的快速排序: -n? g~(/P  
.M4IGOvOS  
package org.rut.util.algorithm.support; OW(&s,|6x  
Ih[+K#t+E  
import org.rut.util.algorithm.SortUtil; ozr9>b>M  
2`= 6%s  
/** sF+=KH  
* @author treeroot #DkD!dW(l  
* @since 2006-2-2 b( ^^m:(w  
* @version 1.0 2_t=P|Uo  
*/ 9(!]NNf!  
public class ImprovedQuickSort implements SortUtil.Sort { cDXsi#Raj  
B )JM%r  
private static int MAX_STACK_SIZE=4096; O;]?gj 1@  
private static int THRESHOLD=10; G8Y+w  
/* (non-Javadoc) cxYfZ4++m  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %:qoV0DR  
*/ @)8]e S7  
public void sort(int[] data) { ?Jtg3AY  
int[] stack=new int[MAX_STACK_SIZE]; =qvZpB7ZZ  
,`8Y8  
int top=-1; '7im  
int pivot; gK3Mms]}m  
int pivotIndex,l,r; - n6jG}01b  
; W7Y2Md  
stack[++top]=0; s-V SH  
stack[++top]=data.length-1; *xM/ ;)  
 [&P`ak  
while(top>0){ ?&l)W~S  
int j=stack[top--]; m^{ xd2  
int i=stack[top--]; )-/gLZsx  
u; TvS |  
pivotIndex=(i+j)/2; WIh@y2&R  
pivot=data[pivotIndex]; lg1PE7  
Jll-X\O`-  
SortUtil.swap(data,pivotIndex,j); 396R$\q  
Z]:BYX'  
file://partition u&TdWZe  
l=i-1; " B@jfa%  
r=j; pyW u9  
do{ BZ F,=v  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); }1%r%TikY  
SortUtil.swap(data,l,r); ]R_G{%  
} cQFR]i  
while(l SortUtil.swap(data,l,r); {sC=J hs-  
SortUtil.swap(data,l,j); fV ZW[9[  
f3 ]  
if((l-i)>THRESHOLD){ rvwy~hO"  
stack[++top]=i; 3,.% s  
stack[++top]=l-1; -0,4eg j3  
} Dr"/3xm  
if((j-l)>THRESHOLD){ mPVE?jnR^0  
stack[++top]=l+1; nb@"?<L!  
stack[++top]=j; ?|t/mo|K?  
} -'C!"\%  
9|!j4DS<  
} }&G]0hCT!  
file://new InsertSort().sort(data); a`Z{ xme =  
insertSort(data); Z-|li}lDr  
} -rDz~M+  
/** |tG+iF@4  
* @param data Y~"9L|`f/  
*/ wTpD1"_R  
private void insertSort(int[] data) { @PcCiGZ  
int temp; nJVp.*S  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); {(vOt'  
} zd`=Ih2Wx  
} Gz dgL"M[  
}  ?B4#f!X  
SQKt}kDbM  
} IG / $!* E  
=wA5P@  
归并排序: Rk<%r k  
DA LQ<iF  
package org.rut.util.algorithm.support; 9)yG.9d1  
Ob(leL>ow  
import org.rut.util.algorithm.SortUtil; =[(1my7  
mTEVFm  
/** c d%hW  
* @author treeroot p~bkf>  
* @since 2006-2-2 3B,QJ&  
* @version 1.0 x9}++r  
*/ 9p> /?H|  
public class MergeSort implements SortUtil.Sort{ $au2%NL  
{of]/ 3=  
/* (non-Javadoc) qB JRS'6'9  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) XU#,Bu{  
*/ kQ}s/*  
public void sort(int[] data) { +?e}<#vd'?  
int[] temp=new int[data.length]; &LU'.jY  
mergeSort(data,temp,0,data.length-1); H%Y%fQ ~^  
} dB`b9)Tk0z  
IH3FK!>6  
private void mergeSort(int[] data,int[] temp,int l,int r){ <-|SIF  
int mid=(l+r)/2; BQ#jwu0e  
if(l==r) return ; <"I?jgo  
mergeSort(data,temp,l,mid); piu0^vEEH  
mergeSort(data,temp,mid+1,r); 8!j=vCv  
for(int i=l;i<=r;i++){ DM2Q1Dh3  
temp=data; YZ[%uArm  
} R|t;p!T  
int i1=l; #,P(isEZ"  
int i2=mid+1; $GF&x>]]  
for(int cur=l;cur<=r;cur++){ @Qo,p  
if(i1==mid+1) A1<k1[5fJ  
data[cur]=temp[i2++]; {mYx  
else if(i2>r) #'NY}6cb$  
data[cur]=temp[i1++]; <R~KM=rL  
else if(temp[i1] data[cur]=temp[i1++]; Cj$H[K}>  
else P|N?OocE  
data[cur]=temp[i2++]; tQ0=p| T]  
} [s %\.y(q  
} y#r\b6  
p#M!S2&z  
} 3o7xN=N  
4qBY% 1  
改进后的归并排序: :bw6k  
3"B+xbe=  
package org.rut.util.algorithm.support; ' C6:e?R  
U$$3'n  
import org.rut.util.algorithm.SortUtil; 8D T@h8tA  
?zE<  
/** 4[H,3}p9H  
* @author treeroot jf7pl8gv  
* @since 2006-2-2 Y\>\[*.v  
* @version 1.0 !47A$sQ  
*/ ;@'0T4Z&l  
public class ImprovedMergeSort implements SortUtil.Sort { x9\J1\  
K-<n`zg3  
private static final int THRESHOLD = 10; ./)j5M  
g)N54WV  
/* (lb`#TTGx  
* (non-Javadoc) .9I_N G  
* r1hD %a  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) eU"mG3 __  
*/ G,/Gq+WX  
public void sort(int[] data) { eu=|t&FKk  
int[] temp=new int[data.length]; 'Ix5,^M}B  
mergeSort(data,temp,0,data.length-1); g$gVm:=  
} Q^q=!/qQ  
a}GAB@YI  
private void mergeSort(int[] data, int[] temp, int l, int r) { Vd[  2u  
int i, j, k; |3|wdzV  
int mid = (l + r) / 2; 7rPLnB]  
if (l == r) YrKFa%k  
return; 5EfY9}dl  
if ((mid - l) >= THRESHOLD) S r[IoF)  
mergeSort(data, temp, l, mid); 9 G((wiE  
else z.A4x#>-  
insertSort(data, l, mid - l + 1); ty9rH=1  
if ((r - mid) > THRESHOLD) Z#@6#S`  
mergeSort(data, temp, mid + 1, r); 5#BF,-Jv  
else >VypE8H]x  
insertSort(data, mid + 1, r - mid); 9$EH K  
r)%4-XeV  
for (i = l; i <= mid; i++) { c_[ JjG^?P  
temp = data; XNK 43fkB.  
} e)b r`CD%  
for (j = 1; j <= r - mid; j++) { M;> ha,x  
temp[r - j + 1] = data[j + mid]; |H<|{{E  
} *\C}Ok=  
int a = temp[l]; }RH lYN  
int b = temp[r]; <f[9ju  
for (i = l, j = r, k = l; k <= r; k++) { +%x^RV}  
if (a < b) { *+&z|Pwv[^  
data[k] = temp[i++]; hxP6C6S  
a = temp; w4`!Te  
} else { `GP3 D~  
data[k] = temp[j--];  Ckw83X  
b = temp[j]; S{Rh'x\B  
} H.)fO ctbO  
} IS .g);Gj  
} t0+t9w/fTP  
2kC^7ZAwu  
/** [gTQ-  
* @param data V~JBZ}`TG<  
* @param l *(>Jd|C  
* @param i '>"`)-  
*/ }[ 7Nb90v  
private void insertSort(int[] data, int start, int len) { Mn-<51.%  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); _y|[Z;  
} AK %=DVkM  
} R+k=Ea&x  
} a_xQ~:H  
} d!w1t=2H  
0%#t[us Y  
堆排序: EP/&m|o|G  
5wy;8a  
package org.rut.util.algorithm.support; fHW-Je7mG  
%!>k#F^S  
import org.rut.util.algorithm.SortUtil; fdg[{T4:  
XlE$.  
/** osI- o~#>  
* @author treeroot J: L-15  
* @since 2006-2-2 5X0_+DdeL  
* @version 1.0 u2f `|+1^y  
*/ bbM4A! N  
public class HeapSort implements SortUtil.Sort{ .Y+mwvLpRG  
\-DM-NrZ1U  
/* (non-Javadoc) sTJJE3TBI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) cF-Jc}h  
*/ U<1}I.hDJ  
public void sort(int[] data) { +'!h-x1y~  
MaxHeap h=new MaxHeap(); :17ee  
h.init(data); 7 _X&5ni  
for(int i=0;i h.remove(); ;|2U f   
System.arraycopy(h.queue,1,data,0,data.length); +k# mvPq  
} k0gJ('zah  
Vj#%B.#Zbf  
private static class MaxHeap{ &8R-C[A  
(*LTq C  
void init(int[] data){ oBhL}r  
this.queue=new int[data.length+1]; 6(!,H<bON  
for(int i=0;i queue[++size]=data; GZ; Z  
fixUp(size); <m-Ni  
} hB?U5J  
} wn&[1gBxM  
-Pv P  
private int size=0; g-4gI\  
4;B= Qoxe  
private int[] queue; /5Gnb.zN)  
1uK)1%vK  
public int get() { = ?y^O0v  
return queue[1]; NdaVT5RB  
} _:oMyK'  
cL-6M^!a  
public void remove() { c%o5 E%  
SortUtil.swap(queue,1,size--); I^6c 0`  
fixDown(1); 7{?lEQ&UE  
} \"<GL;  
file://fixdown yQ72v'  
private void fixDown(int k) { D'U\]'.  
int j; +H5 jRw  
while ((j = k << 1) <= size) { F#zQQ)(Pf  
if (j < size %26amp;%26amp; queue[j] j++; nS?S6G5h  
if (queue[k]>queue[j]) file://不用交换 m-Mhf;  
break; PX+"" #  
SortUtil.swap(queue,j,k); p\4h$."  
k = j; Br_3qJNVP  
} 2b{@]Fp  
} ylo]`Nq  
private void fixUp(int k) { TXY  
while (k > 1) { AX!Md:s  
int j = k >> 1; /3xFd)|Ds  
if (queue[j]>queue[k]) 7$E2/@f  
break; %3#b6m~  
SortUtil.swap(queue,j,k); CNpCe-%&  
k = j; EbHUGCMO  
} 7`j|tb-  
} O&gy(   
P,s)2s'nZ  
} #t5JUi%in*  
>d1aE)?  
} {|t?   
|\yDgs%EGy  
SortUtil: 7z0;FW3>9  
\`p|,j  
package org.rut.util.algorithm; X"]mR7k  
?w|\ 7T.?  
import org.rut.util.algorithm.support.BubbleSort; URj% J/jD  
import org.rut.util.algorithm.support.HeapSort; hfP(N_""S  
import org.rut.util.algorithm.support.ImprovedMergeSort; VH$\ a~|  
import org.rut.util.algorithm.support.ImprovedQuickSort; `UzCq06rJ1  
import org.rut.util.algorithm.support.InsertSort; F ~11 _  
import org.rut.util.algorithm.support.MergeSort; TLR Lng  
import org.rut.util.algorithm.support.QuickSort; ul]m>W  
import org.rut.util.algorithm.support.SelectionSort; $)WH^Ir~  
import org.rut.util.algorithm.support.ShellSort; 1{Sx V  
d@`-!"  
/** qrORP3D@  
* @author treeroot }VJ hw*s  
* @since 2006-2-2 Ezo" f  
* @version 1.0 kG~ivB}x  
*/ "X!_37kQ  
public class SortUtil { -&HoR!af  
public final static int INSERT = 1; "1pZzad  
public final static int BUBBLE = 2; b W`)CWd  
public final static int SELECTION = 3; `s|\" @2  
public final static int SHELL = 4; k -t,y|N  
public final static int QUICK = 5; f(zuRM^5  
public final static int IMPROVED_QUICK = 6; (\AszLW  
public final static int MERGE = 7; iIC9rso"Q1  
public final static int IMPROVED_MERGE = 8; U iPVZ@?  
public final static int HEAP = 9; f/|a?n2\hm  
}T^v7 LY  
public static void sort(int[] data) { |x}&wFV  
sort(data, IMPROVED_QUICK); )gm\e?^   
} ek_i{'hFd  
private static String[] name={ d,E/9y\e  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" &  t @  
}; rUJSzLy  
ygu?w7  
private static Sort[] impl=new Sort[]{ '~!l(&X  
new InsertSort(), +&@l{x(,  
new BubbleSort(), GO&RR}  
new SelectionSort(), xf3/<x!B  
new ShellSort(), jDkc~Wwa  
new QuickSort(), vzgudxG'z  
new ImprovedQuickSort(), pQ6t]DJ4  
new MergeSort(), PhaQ3%  
new ImprovedMergeSort(), %%H. &*i,  
new HeapSort() itvy[b-*  
};  4pOc`  
M KE[Yb?  
public static String toString(int algorithm){ <=LsloI  
return name[algorithm-1]; 8~XI7g'5x  
} wNlV_  
H#d! `  
public static void sort(int[] data, int algorithm) { w2mlqy2L  
impl[algorithm-1].sort(data); [pyXX>:M  
} j4hUPL7  
,_7tRkn  
public static interface Sort { r+WPQ`Ar  
public void sort(int[] data); [zO(V`S2  
} <\#  
^SelqX  
public static void swap(int[] data, int i, int j) { 1\9BO:<K  
int temp = data; Y)-)NLLG;n  
data = data[j]; #'{PY r  
data[j] = temp; laIC}!  
} PT5ni6  
} eWt>^]H~  
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
温馨提示:欢迎交流讨论,请勿纯表情、纯引用!
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八