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
  • 4884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。 $cRcap  
插入排序: Of1IdE6~  
pBlRd{#fL  
package org.rut.util.algorithm.support; (3e;"'k  
WuBmdjZ  
import org.rut.util.algorithm.SortUtil; * <B)Z  
/** IkSX\*  
* @author treeroot e{v,x1Y_z(  
* @since 2006-2-2 L@7Qs6G2u  
* @version 1.0 pwa.q  
*/ "V:   
public class InsertSort implements SortUtil.Sort{ v*&Uk '4E  
Vh 2Bz  
/* (non-Javadoc) hmc\|IF`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1Z\(:ab13  
*/ 5gO /-Zj  
public void sort(int[] data) { }BA9Ka#%  
int temp; ]b}B~jD  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); CkRyzF  
} [?;`x&y~y  
} gsnP!2cR  
} =hJfL}&O3  
+2- qlU  
} S$S_nNq  
y:qx5Mi  
冒泡排序: }$^]dn@  
%p<$|'  
package org.rut.util.algorithm.support; VMaS;)0f@  
(F/HU"C  
import org.rut.util.algorithm.SortUtil; 6_W<hevI  
smQ4CLJ  
/** >NJjS8f5  
* @author treeroot 2K3MAd{  
* @since 2006-2-2 EY So=  
* @version 1.0 BTO A &Ag  
*/ 0Xp nbB~~I  
public class BubbleSort implements SortUtil.Sort{ %_>Tcm=  
1#/6r :  
/* (non-Javadoc) Ynvj;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [6O04"6K  
*/ @XeEpDn]  
public void sort(int[] data) { DNmb[  
int temp; 1Wv{xML"  
for(int i=0;i for(int j=data.length-1;j>i;j--){ #]@9qPyn  
if(data[j] SortUtil.swap(data,j,j-1); cZ^wQ5=  
} k69kv9v@J  
} ~D*b3K 8X  
} <'W=]IAV  
} ldK>HxM%Z  
_Q> "\_,  
} &j3` )N  
 GaHA%  
选择排序: K*[9j 0  
M|ms$1x  
package org.rut.util.algorithm.support; !IN @i:m  
R_7 6W&  
import org.rut.util.algorithm.SortUtil; dl:-k  r8  
UIQQ \,3  
/** ~ W@X-  
* @author treeroot :]yg  
* @since 2006-2-2 `Uv)Sf{  
* @version 1.0 DTPay1]6  
*/ 8}bZ [  
public class SelectionSort implements SortUtil.Sort {  -H`\? R  
]\7lbLv  
/* 9MT? .q  
* (non-Javadoc) FW_G\W.  
* F%Kp9I*  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) R'L?Xn}3  
*/ vmvFBzLR  
public void sort(int[] data) { )AJ=an||5  
int temp; 4\\.n  
for (int i = 0; i < data.length; i++) { ?d4Boe0-a2  
int lowIndex = i; `%oIRuYG]j  
for (int j = data.length - 1; j > i; j--) { IJ0#iA. T  
if (data[j] < data[lowIndex]) { ALfiR(!  
lowIndex = j; #\LZ;&T'N  
} (|dPeix|  
} 5Q|sta!  
SortUtil.swap(data,i,lowIndex); 2)=la%Nx  
} eHUg-\dy  
} zFywC-my@  
Z2#`}GI_m  
} 9s(i`RTM  
Z["BgEJ  
Shell排序: p-,Iio+  
}"n7~|  
package org.rut.util.algorithm.support; ljVIE/iq  
nkRK +~>  
import org.rut.util.algorithm.SortUtil; )&,K94  
tFiR!f)  
/** &wjB{%  
* @author treeroot p,;mYms  
* @since 2006-2-2 AWT"Y4Ie  
* @version 1.0 J(e7{aRJ9  
*/ oNIFx5*Z  
public class ShellSort implements SortUtil.Sort{ {fU?idY)c  
O,|\"b1(  
/* (non-Javadoc) s"coQ!e1.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k;Hnu  
*/ ZdH1nX(Yh3  
public void sort(int[] data) { nP1GW6Pu  
for(int i=data.length/2;i>2;i/=2){ 'E-FO_N  
for(int j=0;j insertSort(data,j,i); Y\( ;!o0a  
} 6,+nRiZ  
} DsGI/c  
insertSort(data,0,1); OKAkl  
} CTp!di|  
"SR5wr   
/** X#ZgS!Mn  
* @param data L/i(KF{  
* @param j ($>XIb9f  
* @param i J(s;$PG  
*/ %K1")s  
private void insertSort(int[] data, int start, int inc) { N4wA#\-  
int temp; O('Nn]wo~9  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); QVtM.oi!Q  
} EB,4PEe:  
} &{z<kmc$6  
} cp%ii'  
$Q/Ya@o  
} x8"#!Pw:`"  
3Aj*\e0t  
快速排序: ;`UecLb#  
SaO3 zz@L  
package org.rut.util.algorithm.support; /;oqf4MF  
u #~ ;&D*q  
import org.rut.util.algorithm.SortUtil; 5<+KR.W  
K5k?H  
/** h{_*oBa  
* @author treeroot 0m)&Y FZ[(  
* @since 2006-2-2 -^SA8y  
* @version 1.0 |/T43ADW  
*/ ?KP}#>Ba@  
public class QuickSort implements SortUtil.Sort{ >|*yh~  
'jjb[{g^}}  
/* (non-Javadoc) $$1qF"GF  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) gQouOjfP  
*/ RiR:69xwR*  
public void sort(int[] data) { Vmi{X b]<  
quickSort(data,0,data.length-1); YRcps0Dx9  
} >NM\TLET~  
private void quickSort(int[] data,int i,int j){ C@gXT]Q 0}  
int pivotIndex=(i+j)/2; ;t(f1rPyE  
file://swap  }roG(  
SortUtil.swap(data,pivotIndex,j); \#,t O%D  
50~K,Jx6B  
int k=partition(data,i-1,j,data[j]); g^~Kze  
SortUtil.swap(data,k,j); mT.e>/pa  
if((k-i)>1) quickSort(data,i,k-1); M+xdHBg  
if((j-k)>1) quickSort(data,k+1,j); %b}gDWs  
io%')0p5q  
} '&yeQ   
/** %y<]Yzv.  
* @param data $_X|, v9  
* @param i {9 PR()_  
* @param j ,k0r  
* @return !GK$[9  
*/ .$rC0<G[K  
private int partition(int[] data, int l, int r,int pivot) { rg QEUDEQ  
do{ 6}dR$*=  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); -1r2K  
SortUtil.swap(data,l,r); Qt+:4{He  
} K%j&/T j1  
while(l SortUtil.swap(data,l,r); O'DW5hBL0  
return l; KL?)akk  
} kQv*eZ~  
m7qqY  
} Oejq@iM"(  
NPjv)TN}3  
改进后的快速排序: z1V#'$_5-  
[_6&N.  
package org.rut.util.algorithm.support; >G"X J<IO  
KeBQH8A1N  
import org.rut.util.algorithm.SortUtil; !|G(Yg7C  
;/8{N0  
/** &tI#T)SSs  
* @author treeroot @gfDp<  
* @since 2006-2-2 O&Z' r  
* @version 1.0 C!x/ ^gw  
*/ D!LX?_cD1i  
public class ImprovedQuickSort implements SortUtil.Sort { HgRwi It  
gn1(4 o  
private static int MAX_STACK_SIZE=4096; l=P'B @,  
private static int THRESHOLD=10;  _^t-9  
/* (non-Javadoc) {G i h&N  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) GA3sRFZdQ  
*/ =U-r*sGLN  
public void sort(int[] data) { _}Ps(_5D  
int[] stack=new int[MAX_STACK_SIZE]; oQ2KW..q  
7"v$- Wy  
int top=-1; -w 6 "?  
int pivot; mDMt5(.   
int pivotIndex,l,r; h{iEZ#  
,/Cq v   
stack[++top]=0; WE!vSZ3R  
stack[++top]=data.length-1; 'c`jyn  
(?&=T.*^  
while(top>0){ ;h/pnmhP  
int j=stack[top--]; 2j&@ p>  
int i=stack[top--]; >yK0iK{  
nKh&-E   
pivotIndex=(i+j)/2; }At{'8*n  
pivot=data[pivotIndex]; fnu"*5bE  
sq0 PBEqq  
SortUtil.swap(data,pivotIndex,j); <G3&z#]#4  
uOi&G:=  
file://partition ~Pf5ORoe  
l=i-1; r.3KPiYK  
r=j; /.Jb0h[W1  
do{ *,WP,-0  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 1(dj[3Mt  
SortUtil.swap(data,l,r); `sHuM*  
} $ 17 su')  
while(l SortUtil.swap(data,l,r); JhK/']R  
SortUtil.swap(data,l,j); )9j06(<A  
-pb&-@Hul  
if((l-i)>THRESHOLD){ %!j:fJ()  
stack[++top]=i; #;tT8[Ewuw  
stack[++top]=l-1; Bx~[F  
} v90T{1+M|4  
if((j-l)>THRESHOLD){ 2z0n<`  
stack[++top]=l+1; udqS'g&  
stack[++top]=j; Q=cQLf;/'  
} 'ktHPn ,K  
C;B}3g&  
} Xa 9TS"  
file://new InsertSort().sort(data); d+L#t  
insertSort(data); (jWss  V1  
} <9A@`_';Aq  
/** Ka_S n  
* @param data FH5ql~  
*/ E@)\Lc~  
private void insertSort(int[] data) { C*70;:b  
int temp; }-<zWI {p  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); IO$z%r7  
} {{yt*7k{  
} Owv +1+B  
} YoODR  
QL7>;t;  
} Hgc=M  
Oxx^[ju~  
归并排序: ,w)p"[^b  
=([av7  
package org.rut.util.algorithm.support; !^fa.I'mM  
^s/  
import org.rut.util.algorithm.SortUtil; c@m5 ~  
u b?K,  
/** hq>Csj==@  
* @author treeroot g=)J~1&p  
* @since 2006-2-2 <g2_6C\j  
* @version 1.0 % g"eV4 j  
*/ "dh:-x6  
public class MergeSort implements SortUtil.Sort{ )hKS0`$|  
}OShT+xeX  
/* (non-Javadoc) j8,n7!G  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >um!Eo  
*/ VL( <  
public void sort(int[] data) { V,7%1TZ:  
int[] temp=new int[data.length]; mz7l'4']+  
mergeSort(data,temp,0,data.length-1); ww d'0P`/  
} 2h^WYpCm  
e&I t  
private void mergeSort(int[] data,int[] temp,int l,int r){ rJfqA@  
int mid=(l+r)/2; *gsAn<  
if(l==r) return ; {y^3> 7  
mergeSort(data,temp,l,mid); =d;Vk  
mergeSort(data,temp,mid+1,r); !cEG}(|h  
for(int i=l;i<=r;i++){ $A\m>*@  
temp=data; ekSY~z=/u  
} i^z`"3#LE  
int i1=l; P1zK2sL_  
int i2=mid+1; !E\[SjY@J  
for(int cur=l;cur<=r;cur++){ }qPhx6nP  
if(i1==mid+1) 'md0]R|  
data[cur]=temp[i2++]; }k$4/7ri  
else if(i2>r) #TJk-1XM*q  
data[cur]=temp[i1++]; eo]#sf@\0  
else if(temp[i1] data[cur]=temp[i1++]; g9h(sLSF  
else n(Y%Vmy  
data[cur]=temp[i2++]; (il0M=M  
} %oykcf,#  
} &Y>zT9]$K  
8|1^|B(l  
} eH>#6R1-  
*6ZCDm&N  
改进后的归并排序: `i!wq&1g7  
/ l>.mK()  
package org.rut.util.algorithm.support; DtCEm(b0  
`|e!Kq?#Q  
import org.rut.util.algorithm.SortUtil; ~fN%WZ;_  
&&8'0 .M{  
/** *U7 %|wd  
* @author treeroot 8}p8r|d!ls  
* @since 2006-2-2 _cqy`p@"  
* @version 1.0 Q%ad q-B  
*/ .=R lOK  
public class ImprovedMergeSort implements SortUtil.Sort { w; TkkDH  
]Tp U"JD  
private static final int THRESHOLD = 10; {Q (}DI  
$K}. +`vVO  
/* SOh-,c\C  
* (non-Javadoc) >=,ua u7  
* 1TJ0D_,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -e-e9uP  
*/ xh9qg0d  
public void sort(int[] data) { <-C!;Ce{  
int[] temp=new int[data.length]; Pi6C/$ K  
mergeSort(data,temp,0,data.length-1); mB 55PYA  
} JNU/`JN9f  
TRvZ  
private void mergeSort(int[] data, int[] temp, int l, int r) { d.F)9h]XHO  
int i, j, k; |H)cuZ  
int mid = (l + r) / 2; f[~1<;|-  
if (l == r) HxwlYx,4  
return; *YV S|6bs  
if ((mid - l) >= THRESHOLD) b[^{)$(  
mergeSort(data, temp, l, mid); *:"^[Ckc  
else >%%=0!,yX  
insertSort(data, l, mid - l + 1); Buc_9Kzw<+  
if ((r - mid) > THRESHOLD) $~u.Wq  
mergeSort(data, temp, mid + 1, r); 4jwu'7 Q  
else P~7.sM  
insertSort(data, mid + 1, r - mid); hSV@TL  
RVM&4#E  
for (i = l; i <= mid; i++) { `u'dh{,gE  
temp = data; ! p.^ITM3S  
} M@7Xp)S"  
for (j = 1; j <= r - mid; j++) { D!3{gV#  
temp[r - j + 1] = data[j + mid]; FvImX  
} gQVBA %  
int a = temp[l]; G?)vWM`j  
int b = temp[r]; 2W$lQ;iO  
for (i = l, j = r, k = l; k <= r; k++) { Jbw!:x [  
if (a < b) { !$xu(D.  
data[k] = temp[i++]; 05e>\}{0  
a = temp; pdz'!I  
} else { J\`^:tcG  
data[k] = temp[j--]; 8C&x MA^  
b = temp[j]; ZXXiL#^  
} NPU^) B  
} &^QPkX@p  
} Ol+Kp!ocY  
7sV /_3H+  
/** Z7#7N wy4  
* @param data sBW3{uK  
* @param l rG6\ ynBX%  
* @param i S!dHNA:iU  
*/ C3"&sdLb$  
private void insertSort(int[] data, int start, int len) { R } %8s*  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); L,M+sN  
} J_"3UZ~&  
} P[i\e7mR  
} sBjXE>_#)  
} > V%Q O>C  
qi\n]I  
堆排序: *{[d%B<lp  
U$J5r+>  
package org.rut.util.algorithm.support; iZTa>@   
Oxa5Kfpa  
import org.rut.util.algorithm.SortUtil; 1uM/2sX  
*.8:'F  
/** R}k69-1vL  
* @author treeroot a<p %hY3  
* @since 2006-2-2 ~CFMIQ et  
* @version 1.0 WOb8 "*OM  
*/ w2Kq(^?  
public class HeapSort implements SortUtil.Sort{ <!!nI%NC  
;1E_o  
/* (non-Javadoc) rw*M&qg!z  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 6Ct0hk4  
*/ {PmzkT}LF  
public void sort(int[] data) { f\'G`4e  
MaxHeap h=new MaxHeap(); PP4d?+;V  
h.init(data); P#bm uCOS  
for(int i=0;i h.remove(); M,G8*HI"  
System.arraycopy(h.queue,1,data,0,data.length); )52#:27F  
} <G9<"{  
dqz1xQ1  
private static class MaxHeap{ 6o(lObfo  
.+uVgSN  
void init(int[] data){ T#N80BH[  
this.queue=new int[data.length+1]; 6vWii)O.D  
for(int i=0;i queue[++size]=data; jrcc  
fixUp(size); _UIgRkl.  
} lb95!.av+I  
} @?M; 'xMbB  
ir+8:./6  
private int size=0; Xv&%2-V;  
W U0UG$o`  
private int[] queue; % &2B  
N.vG]%1"  
public int get() { .S(^roM;+  
return queue[1]; -s33m]a;  
} `W="g6(  
.W-=x,`hY4  
public void remove() { #'KY`&Tw&  
SortUtil.swap(queue,1,size--); D/*vj|  
fixDown(1); Sy:K:Z|[U  
} !8Y3V/)NU  
file://fixdown w4aiI2KFq  
private void fixDown(int k) { 7s!AH yZ  
int j; NC;T( @  
while ((j = k << 1) <= size) { %'kX"}N/  
if (j < size %26amp;%26amp; queue[j] j++; nE^wxtY  
if (queue[k]>queue[j]) file://不用交换 U#iT<#!l2  
break; p>!1S  
SortUtil.swap(queue,j,k); '%:5axg?]  
k = j; y^, "gD  
} @X|ok*v`  
} <w;D$l}u  
private void fixUp(int k) { ItMl4P`|  
while (k > 1) { -z&9 DWH  
int j = k >> 1; H]U "+52h  
if (queue[j]>queue[k]) 5#P: "U  
break; +6uOg,;  
SortUtil.swap(queue,j,k); 1RURZoL  
k = j; (tTLK0V-|3  
} Mi<*6j0  
} {~":;  
+V6j`  
} oUCS |  
rffVfw  
} `Nkx7Z~w:  
0H; "5  
SortUtil: XL=2wh  
>Zi|$@7t-  
package org.rut.util.algorithm; 4;08n|C  
imC&pPBB/G  
import org.rut.util.algorithm.support.BubbleSort; 9tW3!O^_  
import org.rut.util.algorithm.support.HeapSort; $4ka +nfU  
import org.rut.util.algorithm.support.ImprovedMergeSort; <<i=+ed8eP  
import org.rut.util.algorithm.support.ImprovedQuickSort; 5/*)+  
import org.rut.util.algorithm.support.InsertSort; AsV8k _qZL  
import org.rut.util.algorithm.support.MergeSort; ,^Ex}Z  
import org.rut.util.algorithm.support.QuickSort; _.u~)Q`6  
import org.rut.util.algorithm.support.SelectionSort; rHH#@ Zx  
import org.rut.util.algorithm.support.ShellSort; =#7s+d-  
>6n@\n  
/** $XU-[OF%:9  
* @author treeroot 0^-z?Kb<}  
* @since 2006-2-2 F I80vV7  
* @version 1.0 !$g(&  
*/ ,oy4V^B&  
public class SortUtil { F^4*|g  
public final static int INSERT = 1; e&r+w!  
public final static int BUBBLE = 2; +# m   
public final static int SELECTION = 3; ZS07_6.~  
public final static int SHELL = 4; Q&\ZC?y4  
public final static int QUICK = 5; <e@I1iL37y  
public final static int IMPROVED_QUICK = 6; J$o[$G_Z  
public final static int MERGE = 7; ={e#lC  
public final static int IMPROVED_MERGE = 8; 5<0Yh#_  
public final static int HEAP = 9; H J2O@e  
XyN`BDFi  
public static void sort(int[] data) {  ."$=  
sort(data, IMPROVED_QUICK); 9 ayH:;  
} >EPaZp6  
private static String[] name={ F 5b]/;|  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" $\=6."R5<  
}; ^/4 {\3  
c/,|[ t  
private static Sort[] impl=new Sort[]{ 9}7oKlyk  
new InsertSort(), \H}@-*z+)  
new BubbleSort(), nJnO/~|  
new SelectionSort(), sZ\i(eIU  
new ShellSort(), _A# x&<c  
new QuickSort(), )[a?J,  
new ImprovedQuickSort(), lB YS>4~  
new MergeSort(), k;9#4^4(  
new ImprovedMergeSort(), `qQQQ.K7)z  
new HeapSort() ^$^Vd@t>a  
}; vCrWA-q#  
>Kqj{/SWK  
public static String toString(int algorithm){ @idp8J [td  
return name[algorithm-1]; ** "s~  
} #&HarBxx  
cc#_acR  
public static void sort(int[] data, int algorithm) { J0{WqA.P  
impl[algorithm-1].sort(data); 0Mzc1dG:  
} Wl^/=I4p#  
t2U]CI%  
public static interface Sort { Amq8q  
public void sort(int[] data); WHh2fN'A5  
} ^Ypb"Wx8  
|R|U z`  
public static void swap(int[] data, int i, int j) { Ix l"'Q_z  
int temp = data; n$Oky-P"  
data = data[j]; =&<$I  
data[j] = temp; =Am*$wGI  
}  s`{#[&[  
} ~P.-3  
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