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
  • 6885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。 U+9- li  
插入排序: EU^}NZW&v:  
c#\ah}]Vo  
package org.rut.util.algorithm.support; iL7-4Lv#  
9&O#+FU  
import org.rut.util.algorithm.SortUtil; aeuf, #  
/** |c 06ix;).  
* @author treeroot <4l.s  
* @since 2006-2-2 Qr|N)  
* @version 1.0 .-('C> @  
*/ k7yv>iN  
public class InsertSort implements SortUtil.Sort{ }sTH.%  
k\+y4F8$x  
/* (non-Javadoc) u@=+#q~/P  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Rm,[D)D^0N  
*/ _XY`UZ  
public void sort(int[] data) { v2M"b?Q  
int temp; u_}`y1Xu#  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); zJnL<Q  
} 1EC-e|M.  
} `uIx/.L  
} Qfkh0DX B  
TZ&4  
} n=<NFkeX  
|dl0B26x  
冒泡排序: "t (1tWO1o  
! F0rd9  
package org.rut.util.algorithm.support; _KSfP7VU  
A6?qIy  
import org.rut.util.algorithm.SortUtil; Aj8l%'h[  
njy~   
/** >zPO>.?h7T  
* @author treeroot K;<NBnH  
* @since 2006-2-2 >u9id>+  
* @version 1.0 LPq*ZZK  
*/ ?r -\%_J_(  
public class BubbleSort implements SortUtil.Sort{ N5q}::Odc  
u"`5  
/* (non-Javadoc) (TT3(|v  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :DOr!PNA  
*/ o9KyAP$2  
public void sort(int[] data) { bc3|;O  
int temp; [+hy_Nc$  
for(int i=0;i for(int j=data.length-1;j>i;j--){ Ij;==f~G  
if(data[j] SortUtil.swap(data,j,j-1); x !#Ma  
} ]k[ Q]:q  
} 8BYIxHHz  
} .DgoOo%?"  
} cPA~eZbX  
7.wR"1p#  
} eVqM=%Q  
JDC=J(B  
选择排序: nwa\Lrh  
;yk9(wea}"  
package org.rut.util.algorithm.support; +G*"jI8W  
V+qFT3?-  
import org.rut.util.algorithm.SortUtil; ;jRL3gAe)  
[n!$D(|"!V  
/** 9nT?|n]>  
* @author treeroot kJ%{ [1fr  
* @since 2006-2-2 TqENaC#&  
* @version 1.0 ;Ri 3#*a=  
*/ ~v.jZ/h  
public class SelectionSort implements SortUtil.Sort { ~mN g[]  
?ada>"~GR_  
/* f|- m ^/y  
* (non-Javadoc) /HB+ami,  
* (\Rwf}gyR  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C/mg46 v2W  
*/ IV)^;i  
public void sort(int[] data) { pY^pTWs(  
int temp; AC 9{*K[  
for (int i = 0; i < data.length; i++) { X HWh'G9  
int lowIndex = i; J|n(dVen/  
for (int j = data.length - 1; j > i; j--) { Jn@Z8%B@Z  
if (data[j] < data[lowIndex]) { .yZK.[x4  
lowIndex = j; 8!Wfd)4=,F  
} =jJ H^Y2  
} 9T8|y]0F  
SortUtil.swap(data,i,lowIndex); ;):8yBMk  
} Qy4X#wgD  
} 8B}'\e4i  
!a' K &  
} yr FZ~r@-  
*D\0.K,o  
Shell排序: ]XmQ]Yit  
whV&qe;sw  
package org.rut.util.algorithm.support; 6P0y-%[Gk  
c Dfx)sL  
import org.rut.util.algorithm.SortUtil; 2~vo+ng  
<\>+~p,  
/** @)9REA(U  
* @author treeroot \9046An  
* @since 2006-2-2 Ya~ "R#Uy  
* @version 1.0 x^zdTMNhw  
*/ fp9rO}##  
public class ShellSort implements SortUtil.Sort{ W\HLal  
W;^Rx.W  
/* (non-Javadoc) "4 'kb  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) G1kDM.L  
*/ l<u{6o  
public void sort(int[] data) { }16&1@8  
for(int i=data.length/2;i>2;i/=2){ &J\B\`  
for(int j=0;j insertSort(data,j,i); 3Z_t%J5QZ$  
} d/l,C4p  
} r %+Bc Y  
insertSort(data,0,1); uQ{=o]sy  
} 0('OyH)  
aL88E  
/** >g>?Y G  
* @param data f_oq1W)9  
* @param j 3}08RU7[!  
* @param i F;pTXt}?5  
*/ yPSVwe|g  
private void insertSort(int[] data, int start, int inc) { 66/Z\H^d  
int temp; E^7C _JP  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); aPprMQ5  
} tJff+n>  
} I%SuT7"Do  
} DLU[<! C  
VK9Q?nu  
} 5(423"(y  
Ud$Q0m&  
快速排序: Tj Mb>w9  
DG3[^B  
package org.rut.util.algorithm.support; cvhlRI%6  
_8al  
import org.rut.util.algorithm.SortUtil; A_@I_V$  
3 sl=>;-  
/** kmIoJH5  
* @author treeroot <F ew<r2  
* @since 2006-2-2 -<|Y1PQ  
* @version 1.0  wjL|Z8  
*/ Ah*wQow  
public class QuickSort implements SortUtil.Sort{ w %;hl#s  
R_7 6W&  
/* (non-Javadoc) S)+CTVVE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Z*h43  
*/ zkd3Z$Ce  
public void sort(int[] data) { ;{Xy`{Cg!  
quickSort(data,0,data.length-1); F{;; :  
} vT%qILTrQf  
private void quickSort(int[] data,int i,int j){ ;8BA~,4l  
int pivotIndex=(i+j)/2; ~ eHRlXL'  
file://swap 2@sr:,\1  
SortUtil.swap(data,pivotIndex,j); yE}BfU {.  
3!>/smb !  
int k=partition(data,i-1,j,data[j]); z* RSMfRW  
SortUtil.swap(data,k,j); >jv\Qh  
if((k-i)>1) quickSort(data,i,k-1); =9^Q"t4  
if((j-k)>1) quickSort(data,k+1,j); p+RAtRf  
>'N!dM.+9  
} _$8{;1$T?  
/** ZBF1rx?  
* @param data \<X2ns@Tf  
* @param i l nfm0  
* @param j -xz|ayn  
* @return _r]nJEF5  
*/ <>]1Y$^Y  
private int partition(int[] data, int l, int r,int pivot) { pL! a  
do{ IJ0#iA. T  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 7RD$=?oO'  
SortUtil.swap(data,l,r); #K|0lau l  
} \04mLIJr9  
while(l SortUtil.swap(data,l,r); |gW    
return l; (|dPeix|  
} Qo.Uqz.C  
vGMJ^q  
} _PV*lK=  
mW~P!7]  
改进后的快速排序: U_l7CCK +  
pr$~8e=c  
package org.rut.util.algorithm.support; D;jK/2  
#MglHQO+  
import org.rut.util.algorithm.SortUtil; U-eI\Lu  
@ ICb Kg:  
/** 0Qp[\ia  
* @author treeroot |0kXCq  
* @since 2006-2-2 Y87XLvig}  
* @version 1.0 Pr`s0J%m  
*/ \"'\MA  
public class ImprovedQuickSort implements SortUtil.Sort { z{|LQt6q  
>ukQ, CE~  
private static int MAX_STACK_SIZE=4096; )km7tA 0a  
private static int THRESHOLD=10; (8G$(MK  
/* (non-Javadoc) h8jB=e, H  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +}U2@03I  
*/ ~,gLplpG0  
public void sort(int[] data) { HxZ.OZbR  
int[] stack=new int[MAX_STACK_SIZE]; ;SKcbws  
+;dXDZ2  
int top=-1; q? 9GrwL8F  
int pivot; ] IS;\~  
int pivotIndex,l,r; 1[s0Lz  
iX%n0i  
stack[++top]=0; > ws!5q  
stack[++top]=data.length-1; IC/Q  
j=9ze op %  
while(top>0){ 2d8=h6  
int j=stack[top--]; 6{.J:S9n   
int i=stack[top--]; pv&^D,H,  
_f|/*. @Q  
pivotIndex=(i+j)/2; ,#d[ad<  
pivot=data[pivotIndex]; `eC+% O  
+ubnx{VC  
SortUtil.swap(data,pivotIndex,j); ?}8IQxU  
# $~ oe"  
file://partition cIb4-TeV  
l=i-1; M|8 3HTJ  
r=j; 5)`h0TK  
do{ ('4wXD]C  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); h55>{)(E  
SortUtil.swap(data,l,r); K6B4sE  
} 8teJ*sz  
while(l SortUtil.swap(data,l,r); m$:&P|!'p  
SortUtil.swap(data,l,j); 6/1$< !WH  
V`bs&5#Sx  
if((l-i)>THRESHOLD){ si(cOCj/  
stack[++top]=i; *_"u)<J  
stack[++top]=l-1; 3sbK7,4  
} {G*OR,HN  
if((j-l)>THRESHOLD){ h1f8ktF  
stack[++top]=l+1; QDE$E.a  
stack[++top]=j; !d8A  
} B+"g2Y  
MhxDV d  
} c AEokP  
file://new InsertSort().sort(data); )yj:PY]  
insertSort(data); qyyq&  
} Q9slfQ  
/**  g_q<ze  
* @param data cp%ii'  
*/ H;S%Y`V  
private void insertSort(int[] data) { |=5/Rax^  
int temp; 0+`Pg  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); hO( RZ '{  
} *||d\peQ  
} g_z/{1$  
} t&}6;z 3  
y LM"+.?pL  
} rMp9jG@3   
{rXs:N@  
归并排序: 61@EDIYPc  
yZ3nRiuRT  
package org.rut.util.algorithm.support; RH[+1z8  
JE;+T[I  
import org.rut.util.algorithm.SortUtil; FS@A8Bb  
H l<$a"K7\  
/** X3B{8qx_>  
* @author treeroot j*3}1L4P  
* @since 2006-2-2 sbS~N*{E  
* @version 1.0 Ns=AjhLc z  
*/ ZnfNQl[  
public class MergeSort implements SortUtil.Sort{ v>m n/a  
NXU`wnVJ  
/* (non-Javadoc) aE/D*.0NI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lddp^ #f  
*/ cdTsRS;E  
public void sort(int[] data) { |B^G:7c  
int[] temp=new int[data.length]; Vmi{X b]<  
mergeSort(data,temp,0,data.length-1); ~uj;qq  
} ln<]-)&C  
6rX_-Mm6w  
private void mergeSort(int[] data,int[] temp,int l,int r){ s>%Pd7:  
int mid=(l+r)/2; T ):SGW  
if(l==r) return ; 1RqgMMJL  
mergeSort(data,temp,l,mid); ,t,wy37*D  
mergeSort(data,temp,mid+1,r); *b)Q5dw@1  
for(int i=l;i<=r;i++){ x0Z5zV9  
temp=data; *#&*`iJ(  
} YZE.@Rz  
int i1=l; |vILp/"9=W  
int i2=mid+1; %*W<vu>H  
for(int cur=l;cur<=r;cur++){ 50~K,Jx6B  
if(i1==mid+1) ^gYD*K!*  
data[cur]=temp[i2++]; CxF-Z7 '  
else if(i2>r) gEJi[E@  
data[cur]=temp[i1++]; _[K#O,D,  
else if(temp[i1] data[cur]=temp[i1++]; z`U Ukl}T  
else c`G&KCw)d  
data[cur]=temp[i2++]; ;3m!:l  
} i8PuC^]  
} N1x@-/xa|  
d,cN(  
} m,_d^  
%XTA;lrz  
改进后的归并排序: <@uOCRb V  
la^ DjHA$  
package org.rut.util.algorithm.support; I021p5h|  
#A<P6zJXR  
import org.rut.util.algorithm.SortUtil; 0q6I;$H  
Ee2c5C!|C  
/** RBGX_v?  
* @author treeroot Of[;Qn  
* @since 2006-2-2 tE"Si<[]H$  
* @version 1.0 .$rC0<G[K  
*/ ra6o>lI(,  
public class ImprovedMergeSort implements SortUtil.Sort { Vpp&|n9^  
K_/B?h  
private static final int THRESHOLD = 10; SO?8%s(   
m{%t?w$Au  
/* 0l\y.   
* (non-Javadoc) !<n"6KA.  
* |m G7XL,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0ejdKdYN  
*/ 0$P/jt  
public void sort(int[] data) { buMq F-j  
int[] temp=new int[data.length]; Mi7y&~,  
mergeSort(data,temp,0,data.length-1); jE/oA<^  
} f [o%hCS  
\5><3*\  
private void mergeSort(int[] data, int[] temp, int l, int r) { CAc %f9!3  
int i, j, k; ~H6;I$e[  
int mid = (l + r) / 2; \h{r;#g  
if (l == r) |M~ON=  
return; %y`7);.q  
if ((mid - l) >= THRESHOLD) yy2I2Bv  
mergeSort(data, temp, l, mid); j tA*pL'/V  
else >'=MH2;  
insertSort(data, l, mid - l + 1); %{5n1w  
if ((r - mid) > THRESHOLD) HgRwi It  
mergeSort(data, temp, mid + 1, r); C;rG]t^%  
else KFWJ}pNq  
insertSort(data, mid + 1, r - mid); +a+`Z>  
Ob<W/-%5tH  
for (i = l; i <= mid; i++) { eE8ULtO  
temp = data; uG J"!K  
} sd0r'jb  
for (j = 1; j <= r - mid; j++) { _YHu96H;  
temp[r - j + 1] = data[j + mid]; @,H9zrjVFZ  
} u5E]t9~Pq  
int a = temp[l]; Rm>^tu -  
int b = temp[r]; j|(Z#3J  
for (i = l, j = r, k = l; k <= r; k++) { c6AWn>H  
if (a < b) { ]$iN#d|ZU  
data[k] = temp[i++]; ^4$ 'KIq  
a = temp; cPF<D$B  
} else { ;[0&G6g  
data[k] = temp[j--]; C2F0tr|  
b = temp[j]; ~oD8Rnf  
} SW?p?<  
} `$R A< 3  
} rAqxTdF  
{I1~-8  
/** G*8GGWB^a  
* @param data X" R<J#4  
* @param l mxG]kqi  
* @param i / !xF?OmVd  
*/ 6vy7l(%  
private void insertSort(int[] data, int start, int len) {  z01>'  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); (!K_Fy@  
} Oe]&(  
} I4_d[O9  
} lX!`zy{3k  
} 6j9)/H P  
c+' =hR[  
堆排序: '\DSTr:N  
}xb=<  
package org.rut.util.algorithm.support; j2n,f7hl.  
m~l F`?  
import org.rut.util.algorithm.SortUtil; fQLax  
rP=sG;d  
/** `k{& /]  
* @author treeroot \c`oy=qY0  
* @since 2006-2-2 Es5p}uh.[Y  
* @version 1.0 ra7uU*  
*/ qv{o |g QB  
public class HeapSort implements SortUtil.Sort{ zsl,,gk9Y  
!fkep=  
/* (non-Javadoc) dj9 ?t  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ||B;o-  
*/ A2H4k|8  
public void sort(int[] data) { g[z.*y/  
MaxHeap h=new MaxHeap(); Ss ?CfRM  
h.init(data); :VA.QrKW  
for(int i=0;i h.remove(); ~%y@Xsot>  
System.arraycopy(h.queue,1,data,0,data.length); # '|'r+  
} 9ptFG]lZ  
wo^Sy41bF  
private static class MaxHeap{ <eN R8(P  
0Fr1Ku!  
void init(int[] data){ _!V%fw  
this.queue=new int[data.length+1]; ^U7OMl4Usq  
for(int i=0;i queue[++size]=data; VV_l$E$  
fixUp(size); B0UJq./`  
} ZXb0Y2AVx  
} wdE?SDs  
%'Xk)-+y  
private int size=0; &~DTZg Y  
Z'v-F^  
private int[] queue; T6 #"8qz<  
'W. V r4  
public int get() { v6a]1B   
return queue[1]; Jc*XXu)  
} kMxazx1  
tJI,r_  
public void remove() { w5C*L)l  
SortUtil.swap(queue,1,size--); BNGe exs@  
fixDown(1); WgR4Ix^L#  
} ) |#%Czd4  
file://fixdown =v6*|  
private void fixDown(int k) { 5"Kx9n|  
int j; D@YP7  
while ((j = k << 1) <= size) { %,*$D} H  
if (j < size %26amp;%26amp; queue[j] j++; 3NK ^AaTK  
if (queue[k]>queue[j]) file://不用交换 =(r* 5vd  
break; $6f\uuTU2"  
SortUtil.swap(queue,j,k); D$k8^Vs  
k = j; vFmJ;J  
} vxlOh.a|/L  
} wzcai 0y*  
private void fixUp(int k) { -C7FuD[Xw  
while (k > 1) { 0(>rG{u  
int j = k >> 1; ph:3|d  
if (queue[j]>queue[k]) Mio>{%/  
break; [pOg'  
SortUtil.swap(queue,j,k); h+7>#*DH  
k = j; XFZ~ #DT&  
} }2>"<)  
} yYJY;".H  
Al"3 kRJJ  
} P.WYTst=  
M++0zhS  
} 8|1^|B(l  
Eh8Pwt7C@  
SortUtil: 2h~-  
f?fKhu2  
package org.rut.util.algorithm; >%b\yl%0  
#G^A-yjn  
import org.rut.util.algorithm.support.BubbleSort; B~WtZ-%%E  
import org.rut.util.algorithm.support.HeapSort; Dma.r  
import org.rut.util.algorithm.support.ImprovedMergeSort; ;I6s-moq_  
import org.rut.util.algorithm.support.ImprovedQuickSort; A/*%J74v  
import org.rut.util.algorithm.support.InsertSort; %"3 )TN4  
import org.rut.util.algorithm.support.MergeSort; ~.tvrx g  
import org.rut.util.algorithm.support.QuickSort; `d]Z)*9  
import org.rut.util.algorithm.support.SelectionSort; \y Hen|%  
import org.rut.util.algorithm.support.ShellSort; m$Y :0_^-  
X!,@ j\L  
/** P~CrtTss  
* @author treeroot pJpNO$$w  
* @since 2006-2-2 FY0%XW  
* @version 1.0 $r.U  
*/ [2Mbk~  
public class SortUtil { w:=V@-S 8  
public final static int INSERT = 1; (-yl|NFBw  
public final static int BUBBLE = 2; [W,|kDK  
public final static int SELECTION = 3; GUp;AoQ  
public final static int SHELL = 4; H -t|i  
public final static int QUICK = 5; (yrh=6=z  
public final static int IMPROVED_QUICK = 6; hXL|22>w<  
public final static int MERGE = 7; U5ZX78>a  
public final static int IMPROVED_MERGE = 8; qc-,+sn(  
public final static int HEAP = 9; ~4#B'Gy[  
Wsz0yHD[`  
public static void sort(int[] data) {  .jg0a  
sort(data, IMPROVED_QUICK); j.?:Gaab?#  
} w_-+o^  
private static String[] name={ 1TJ0D_,  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 0~A#>R'  
}; eb:A1f4L  
<>&=n+i  
private static Sort[] impl=new Sort[]{ {eZ{]  
new InsertSort(), t1]6(@mj5  
new BubbleSort(), qk{'!Ii  
new SelectionSort(), %HuyK  
new ShellSort(), "cUg>a3  
new QuickSort(), i2,U,>.  
new ImprovedQuickSort(), 1JS2SxF  
new MergeSort(), 7!V @/S}7  
new ImprovedMergeSort(), cgZaPw2 bw  
new HeapSort() D@54QJ<  
}; J\co1kO9/  
n@>wwp  
public static String toString(int algorithm){ $^%N U  
return name[algorithm-1]; 0%C^8%(x  
} C 0C0GqN,  
H'g?llh1J  
public static void sort(int[] data, int algorithm) { fv'4f$U  
impl[algorithm-1].sort(data); 85Y|CN] vQ  
} X)Gp7k1w  
Ww9;UP'G  
public static interface Sort { j BS4vvX?  
public void sort(int[] data); .(Y6$[#@  
} XX;6 P  
htJuGfDx1  
public static void swap(int[] data, int i, int j) { 4jwu'7 Q  
int temp = data; = 7/-i  
data = data[j]; = 1|"-  
data[j] = temp; [Eq<":)  
} d "<F!?8  
} [s6C ZcL  
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
如果您在写长篇帖子又不马上发表,建议存为草稿
认证码:
验证问题:
10+5=?,请输入中文答案:十五