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
  • 7257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。 7ugZE93!  
插入排序: f|u#2!7  
Ltjbxw"Qd  
package org.rut.util.algorithm.support; 1-.~7yC  
r J KZ)N{  
import org.rut.util.algorithm.SortUtil; 5NJ4  
/** /?'; nGq  
* @author treeroot 'zh7_%  
* @since 2006-2-2 NBb6T V}j  
* @version 1.0 <F11m(  
*/ sg E-`#  
public class InsertSort implements SortUtil.Sort{ s+:=I e  
=2w4C_  
/* (non-Javadoc) r! Ay :r  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y.^=]-n,  
*/ dMR3)CO  
public void sort(int[] data) { {BHI1Uw  
int temp; pRSOYTebP  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); t4?DpE  
} dg4vc][  
} Vf(6!iRP@  
} Wu)>U  
Z$J#|  
} dL|+d:v  
@29U@T  
冒泡排序: Vb BPB5 $q  
]({~,8s  
package org.rut.util.algorithm.support; ] }f9JNf$  
Pz$R(TV  
import org.rut.util.algorithm.SortUtil; y\{%\$  
ax 41N25  
/** DNP13wp@  
* @author treeroot C* nB  
* @since 2006-2-2 }MUn/ [x  
* @version 1.0 gk`zA  
*/ Z4IgBn(Z_}  
public class BubbleSort implements SortUtil.Sort{ '=P7""mN5  
%,ngRYxT#  
/* (non-Javadoc) JmEj{K<3I  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) F:mq'<Q  
*/ 0Ia($.1mY  
public void sort(int[] data) { q\H[am  
int temp; ,]b~t0|B  
for(int i=0;i for(int j=data.length-1;j>i;j--){ k%^lF?_0I  
if(data[j] SortUtil.swap(data,j,j-1); h;3cd0  
} 3j3N!T9  
} Fv<`AU  
} vzmc}y G  
} x`6<m!d`  
]vuwkn+)  
} r_;9' #&'  
}<'5 z qS  
选择排序: F5o+kz$;  
TwgrRtj'  
package org.rut.util.algorithm.support; } (!EuLL  
}%D^8>S  
import org.rut.util.algorithm.SortUtil; &IlU|4`R%  
`Qeg   
/** =N 5z@;!  
* @author treeroot 1!>Jpi0  
* @since 2006-2-2 2h%z ("3/  
* @version 1.0 @O[5M2|r  
*/ YtO|D  
public class SelectionSort implements SortUtil.Sort { H*9~yT' Q  
@Vu(XG  
/* MX+ Z ?  
* (non-Javadoc) |\n_OS 7  
* w|Nz_3tI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) In[Cr/&/Y  
*/ \}]!)}G  
public void sort(int[] data) { O`vTnrY  
int temp; Zkf0p9h\  
for (int i = 0; i < data.length; i++) { $[yFsA6  
int lowIndex = i; FN[{s  
for (int j = data.length - 1; j > i; j--) { Uo2GK3nT  
if (data[j] < data[lowIndex]) { ^%` wJ.c  
lowIndex = j; @_z4tUP  
} 2YDM9`5xs\  
} ~RWktv  
SortUtil.swap(data,i,lowIndex); fNrgdfo  
} NssELMtF!g  
} tr7<]Hm:  
i E CrI3s  
} vv=VRhwF  
`UBYp p  
Shell排序: IUwm}9Q!  
]Zmj4vK J  
package org.rut.util.algorithm.support; <mAhr  
XQS9,Hl  
import org.rut.util.algorithm.SortUtil; Zv#Ll@v  
B,{K*-7)MX  
/** MR}Agu#LG  
* @author treeroot +a*tO@HG  
* @since 2006-2-2 \G-KplKS  
* @version 1.0 #UbF9})q  
*/ cH>%r^G\  
public class ShellSort implements SortUtil.Sort{ R+CM`4CD  
O|w J)  
/* (non-Javadoc) KIWe@e  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;amXY@RmH  
*/ w}=5ElB  
public void sort(int[] data) { !o$!Frc  
for(int i=data.length/2;i>2;i/=2){ aE2.L;Tk?  
for(int j=0;j insertSort(data,j,i); t]-5 ]oI  
} x*/S*!vx\  
} oJfr +3I  
insertSort(data,0,1); F;]%V%F.X  
} Phke`3tth  
@*sWu_ -Y%  
/** =%/)m:f!^  
* @param data f!JS= N?3  
* @param j Qubp9C#r  
* @param i ^#sU*trr  
*/ QqU!Najf  
private void insertSort(int[] data, int start, int inc) { !/wtYI-`  
int temp; mrw=T.  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Y0X-Zqk'  
} >FkWH7  
} MNV % =G  
} Gh}*q|Lz  
ukUGvK  
} mWvl 38  
Q 7?#=N?  
快速排序: Bs?^2T~%{  
JeE ;V![  
package org.rut.util.algorithm.support; LEtG|3Dx  
[W7CXZDd  
import org.rut.util.algorithm.SortUtil; d m`E!R_  
9th,VnD0  
/** r >nG@A  
* @author treeroot gN"7be&J  
* @since 2006-2-2 ~Rr~1I&mR,  
* @version 1.0 J Px~VnE%%  
*/ Cid ;z  
public class QuickSort implements SortUtil.Sort{ GmP@;[H"  
zOiu5  
/* (non-Javadoc) 1Yn +<I  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S.f5v8  
*/ %ALwz[~]  
public void sort(int[] data) { 1{JV}O  
quickSort(data,0,data.length-1); O`<KwUx !  
} WILMH`  
private void quickSort(int[] data,int i,int j){ >=-(UA  
int pivotIndex=(i+j)/2; hr)B[<9  
file://swap c3CWRi`LE  
SortUtil.swap(data,pivotIndex,j); w Y_)y  
^RI?ybDd  
int k=partition(data,i-1,j,data[j]); u`RI;KF~F  
SortUtil.swap(data,k,j); tw9f%p  
if((k-i)>1) quickSort(data,i,k-1); $A-J,_:T<  
if((j-k)>1) quickSort(data,k+1,j); B]l)++~  
\vO,E e~#W  
} 5yz(>EVH  
/** _BP&n  
* @param data uwy:t!(j  
* @param i rQ qW_t%  
* @param j Nb'''W-iu  
* @return ]'=)2 .}  
*/ W}mn}gTQ  
private int partition(int[] data, int l, int r,int pivot) { 2V#>)R#k  
do{ 6l:qD`_  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Ob<{G"  
SortUtil.swap(data,l,r); :Nz2z[W$  
} =7m)sxj]w  
while(l SortUtil.swap(data,l,r); 4.5|2 \[  
return l; gK'1ZLdZ2  
} OD!& .%  
c$yk s  
} CTZ8Da^  
 cHk)i  
改进后的快速排序: AiO$<CS  
Vo'T!e- B  
package org.rut.util.algorithm.support; 2|*JSU.I  
~XmLX)vO/  
import org.rut.util.algorithm.SortUtil; G VYkJ0,  
R1$:~p2m  
/**   t!_<~  
* @author treeroot 2HsLc*9{4  
* @since 2006-2-2 ,tu.2VQc@  
* @version 1.0 ia+oX~W!VR  
*/ HK0! P*  
public class ImprovedQuickSort implements SortUtil.Sort { YOmM=X+'H  
7Bd-!$j+  
private static int MAX_STACK_SIZE=4096;  KJaXg;,H  
private static int THRESHOLD=10; yj.7'{mA  
/* (non-Javadoc) !`Hd-&}bYz  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fy@<&U5rg  
*/ %2{ %Obp'  
public void sort(int[] data) { |#cm`v  
int[] stack=new int[MAX_STACK_SIZE]; .Z `av n  
F7EKoDt  
int top=-1; ?WqT[MnK  
int pivot; Ay0U=#XP  
int pivotIndex,l,r; 2$g6}A`r  
>8#X;0\Kj  
stack[++top]=0; SPY|K  
stack[++top]=data.length-1; Ssou  
dQA'($  
while(top>0){ 9CWezI+  
int j=stack[top--]; +b3RkkC  
int i=stack[top--]; 1e{IC=  
,NyY>~+  
pivotIndex=(i+j)/2; Gsq00j &<Z  
pivot=data[pivotIndex]; n%o5kVx0  
pUQ/03dp  
SortUtil.swap(data,pivotIndex,j); \kMefU  
%,@e^3B  
file://partition zkuU5O  
l=i-1; afuOeZP  
r=j; deV  8  
do{ 'm FqE n  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Z8@J`0x  
SortUtil.swap(data,l,r); xRzFlay8  
} c]n1':FT"  
while(l SortUtil.swap(data,l,r); 7'W%blg!V  
SortUtil.swap(data,l,j); {byBc G  
g+Sbl  
if((l-i)>THRESHOLD){ 1VG4S){}\9  
stack[++top]=i; Uyg5i[&X@  
stack[++top]=l-1; ZQ%'`q\c  
}  ~- _kM  
if((j-l)>THRESHOLD){ 2a`o &S  
stack[++top]=l+1; L\xk:j1[  
stack[++top]=j; Ez fN&8E  
} KyYMfC  
gM u"2I5  
} Ybs\ES'?A  
file://new InsertSort().sort(data); >_-s8t=|  
insertSort(data); zuJ@E=7  
} t\k$};qJ  
/** @hiCI.?X  
* @param data 7byK{{/z  
*/ Cz\e w B  
private void insertSort(int[] data) { t(NI-UXBp  
int temp; ORHp$Un~)  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); c1k/UcEcg~  
} M3c$=>  
} e.7EU  
} IEsEdw]aZE  
l1OE!W W  
} P2BWuh F  
+./H6!  
归并排序: j,lT>/  
=[cS0Sy  
package org.rut.util.algorithm.support; Sq/ qu-%X  
=jOv] /  
import org.rut.util.algorithm.SortUtil; `.~N4+SP  
Rg\z<wPBG  
/** fk6%XO  
* @author treeroot A+ZK4]xb  
* @since 2006-2-2 la0BiLzb]  
* @version 1.0 ([T>.s  
*/ "d#Y}@*~o  
public class MergeSort implements SortUtil.Sort{ lT(WD}OS  
K6v6ynp/  
/* (non-Javadoc) &C, 'x4c"  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7~^GA.92  
*/ oTU!R ,  
public void sort(int[] data) { jnKWZ/R  
int[] temp=new int[data.length]; y&q*maa[  
mergeSort(data,temp,0,data.length-1); Fq~yL!#!  
} mZtCL  
#%iDT6  
private void mergeSort(int[] data,int[] temp,int l,int r){ eL10Q(;P`  
int mid=(l+r)/2; 3G,Oba[$<  
if(l==r) return ; [YF>:ydk  
mergeSort(data,temp,l,mid); nBjqTud  
mergeSort(data,temp,mid+1,r); [R(`W#W  
for(int i=l;i<=r;i++){ 591>rh)  
temp=data; +7D|4  
} 0=@?ob7  
int i1=l; bv]`!g: C  
int i2=mid+1; LSa,1{  
for(int cur=l;cur<=r;cur++){ A!s`[2 Z  
if(i1==mid+1) A-Sv;/yD_  
data[cur]=temp[i2++]; >kj`7GA  
else if(i2>r) 1an^1!  
data[cur]=temp[i1++]; R&8Iz yM  
else if(temp[i1] data[cur]=temp[i1++]; H[s(e5 6z  
else 8ndYV>{f  
data[cur]=temp[i2++]; BZ94NOOdw  
} nhB1D-  
} gp};D  
8;b( 0^  
} m ,* QP*  
nt 81Bk=  
改进后的归并排序: ?*[N_'2W+  
Ygm`ZA y  
package org.rut.util.algorithm.support; eJF5n#  
8p^bD}lN7  
import org.rut.util.algorithm.SortUtil; \rx3aJl  
*xx'@e|<;  
/** wa<MRt W=  
* @author treeroot I WTwz!+  
* @since 2006-2-2 lGV0 *Cji  
* @version 1.0 /f:dv?!km  
*/ =)M/@T  
public class ImprovedMergeSort implements SortUtil.Sort { Hu\B"fdS  
R0P iv:  
private static final int THRESHOLD = 10; nOt&pq7  
zvYq@Mhr  
/* rXmn7;B}g  
* (non-Javadoc) *]ly0nP  
* NO7J!k?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +6sy-<ZL:  
*/ Ed0QQyC@9  
public void sort(int[] data) { _(_a*ml  
int[] temp=new int[data.length]; j@W.&- _  
mergeSort(data,temp,0,data.length-1); '-r).Xk  
} 6LOnU~l,  
e}D3d=6`  
private void mergeSort(int[] data, int[] temp, int l, int r) { S@jQX  
int i, j, k; K,Ef9c/+K  
int mid = (l + r) / 2; hEA<o67  
if (l == r) I?h)OvWd  
return; !^^?dRd*v  
if ((mid - l) >= THRESHOLD) L6t+zIUc-~  
mergeSort(data, temp, l, mid); Vi>,kF.f V  
else TTeH `  
insertSort(data, l, mid - l + 1); %}SGl${-  
if ((r - mid) > THRESHOLD) 0ZT5bg_M  
mergeSort(data, temp, mid + 1, r); MuYk};f  
else ;+e}aER&9  
insertSort(data, mid + 1, r - mid); O!m vJD  
j2Cks_$:  
for (i = l; i <= mid; i++) { 8|):`u  
temp = data; #^`4DhQ/ 1  
} $Z!`Hb  
for (j = 1; j <= r - mid; j++) { ~qcNEl\-y  
temp[r - j + 1] = data[j + mid]; NaPt"G  
} ;9[fonk  
int a = temp[l]; <LmIK  
int b = temp[r]; O}+.U<V  
for (i = l, j = r, k = l; k <= r; k++) { NO~*T?&  
if (a < b) { T_i:}ul  
data[k] = temp[i++]; $*SW8'],`  
a = temp; >sfRI]OG  
} else { whmdcVh.  
data[k] = temp[j--]; Vr)<\h  
b = temp[j]; b=g8eMm  
} GQt8p[!  
} aH 4c02s$  
} H2&@shOOQJ  
LM$W*  
/** I(]}XZq  
* @param data J@^8ko  
* @param l Z,RzN5eN  
* @param i O ,J>/  
*/ 8J=? 5  
private void insertSort(int[] data, int start, int len) { .Obw|V-  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); udxFz2>_l$  
} J5di[nu  
} pf%=h |  
} !g?|9  
} *?Lv3}E  
(*Z)(O*z  
堆排序: hLI`If/+K  
{\S+#W\  
package org.rut.util.algorithm.support; m`v2: S}  
#Vl 0.l3  
import org.rut.util.algorithm.SortUtil; ]Uw<$!$-]s  
;Yx)tWQI  
/** 8}c$XmCM  
* @author treeroot ?{\nf7Y  
* @since 2006-2-2 ^$%S &W  
* @version 1.0 M9Cv wMi  
*/ ZW-yP2  
public class HeapSort implements SortUtil.Sort{ ks3`3q 7  
TMAJb+@l:  
/* (non-Javadoc) &+a9+y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,oN8HpGs  
*/ k'gh  
public void sort(int[] data) { m`IC6*  
MaxHeap h=new MaxHeap(); *-+&[P]m  
h.init(data); m#8m] Y  
for(int i=0;i h.remove(); c|lu&}BS  
System.arraycopy(h.queue,1,data,0,data.length); 0Oi,#]F  
} H9KKed47d/  
N8!cO[3Oh  
private static class MaxHeap{ {s)+R[?m<o  
%u`8minCt  
void init(int[] data){ J1/?JfF  
this.queue=new int[data.length+1]; BHd&yIyI  
for(int i=0;i queue[++size]=data; k ]W[`  
fixUp(size); GT~)nC9f  
} @En^wN  
} g3Ec"_>P  
Mx6@$tQ%  
private int size=0; M^MdRu  
dI*pDDq#  
private int[] queue; z3`-plE  
Wc,_RN-  
public int get() { *7*lE"$p  
return queue[1]; y#>,+a#5  
} A:>01ZJ5S+  
cmBB[pk\  
public void remove() { ^:K3vC[h;c  
SortUtil.swap(queue,1,size--); unshH<  
fixDown(1); FjK3 .>'  
} 0T@Zb={  
file://fixdown zw+B9PYqX  
private void fixDown(int k) { &yGaCq;0  
int j; UUSq$~Ct  
while ((j = k << 1) <= size) { K2 he4<  
if (j < size %26amp;%26amp; queue[j] j++; 8 ![|F:  
if (queue[k]>queue[j]) file://不用交换 ,O.3&Nz,c  
break; CJ(NgYC h  
SortUtil.swap(queue,j,k);  '/`= R  
k = j; eKgisY4#  
} 7bqBk,`9  
} 7 ]^M>#  
private void fixUp(int k) { `o<' x.I  
while (k > 1) { t]>Lh>G  
int j = k >> 1; &?VQ,+[ <  
if (queue[j]>queue[k]) tDSJpW'd  
break; (]b!{kS  
SortUtil.swap(queue,j,k); =fu :@+  
k = j; L~_9_9c  
} Z= jr-)kK  
} g$( V^  
qi;f^9M%  
} OH;b"]  
D0gZC  
} ~ }F{vm  
 =Qh\D  
SortUtil: NXwz$}}Pp  
W4hbK9y  
package org.rut.util.algorithm; Z&0'a  
N U|d  
import org.rut.util.algorithm.support.BubbleSort; , 3,gG "  
import org.rut.util.algorithm.support.HeapSort; .^N/peU q  
import org.rut.util.algorithm.support.ImprovedMergeSort; @[5xq  
import org.rut.util.algorithm.support.ImprovedQuickSort; JmPHAUd  
import org.rut.util.algorithm.support.InsertSort; /3A^I{e74  
import org.rut.util.algorithm.support.MergeSort; HkQ*y$$  
import org.rut.util.algorithm.support.QuickSort; W`K7 QWV4  
import org.rut.util.algorithm.support.SelectionSort; ;epV<{e$q4  
import org.rut.util.algorithm.support.ShellSort; FQT~pfY  
dA@'b5N{"  
/** _Xnqb+  
* @author treeroot Is]aj-#r  
* @since 2006-2-2 ]GN7+ 8l  
* @version 1.0 sW)Zi  
*/ ld3-C55  
public class SortUtil { -M%_\;"de  
public final static int INSERT = 1; [`p=(/I&L  
public final static int BUBBLE = 2; MxWy*|J}  
public final static int SELECTION = 3; bSsh^Z  
public final static int SHELL = 4; q2. XoCf  
public final static int QUICK = 5; ?z}=B  
public final static int IMPROVED_QUICK = 6; hZh9uI7.  
public final static int MERGE = 7; ^[]}R:  
public final static int IMPROVED_MERGE = 8; #Xhdn\7  
public final static int HEAP = 9; P/xKnm~  
R16'?,  
public static void sort(int[] data) { XpmS{nb  
sort(data, IMPROVED_QUICK); bA= |_Wt  
} qP{/[uj[K  
private static String[] name={ lrnyk(M}Q.  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 2rmSo&3@s  
}; M>&%(4K  
A:aE|v/T&  
private static Sort[] impl=new Sort[]{ cs T2B[f9D  
new InsertSort(),  $rz=6h  
new BubbleSort(), ':gUOra|I  
new SelectionSort(), fQ/ 0R  
new ShellSort(), f` :i.Sr  
new QuickSort(), /J04^ 6  
new ImprovedQuickSort(), ,S'p %g  
new MergeSort(), XEn*?.e  
new ImprovedMergeSort(), _{R=B8Zz\  
new HeapSort() AK\$i$@6  
}; +|bmT  
AgV G`q  
public static String toString(int algorithm){ >y.%xK  
return name[algorithm-1]; (WK&^,zQn  
} [ j3&/  
`9)t[7  
public static void sort(int[] data, int algorithm) { Z-E`>  
impl[algorithm-1].sort(data); *GxTX3i}vc  
} jov:]Bic  
}| J79s2M  
public static interface Sort { {Z3dF)>  
public void sort(int[] data); |~'IM3Jw(Y  
} q6_u@:3u  
JL\w_v  
public static void swap(int[] data, int i, int j) { 5m?8yT}  
int temp = data; xqC+0{] y  
data = data[j]; *.\  
data[j] = temp; = QQ5f5\l  
} Y^ kXSU  
} vFE;D@bz:  
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