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
  • 5808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。 hYNY"VB  
插入排序: p#?7 w  
2Mvrey)  
package org.rut.util.algorithm.support; :f}9($  
,<tX%n`v=  
import org.rut.util.algorithm.SortUtil; n; +LH9  
/** Hmd] FC,_  
* @author treeroot b#toM';T  
* @since 2006-2-2 B43HNs  
* @version 1.0 _%!c+f7  
*/ -Rd/G x  
public class InsertSort implements SortUtil.Sort{ #_J@-f7^  
pg.ri64H<  
/* (non-Javadoc) UT=tT )4b  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1&)?JZhg  
*/ nvJf/90$  
public void sort(int[] data) { ],FMwCI  
int temp; 9~mh@Kgv  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); JedmaY06=  
} s{S4J'VW  
} M&@b><B  
} X>(TrdK_9"  
~yfNxH~k  
} %]DP#~7[|  
")dH,:#S  
冒泡排序: 1V4s<m>#  
-tHU6s,  
package org.rut.util.algorithm.support; . Z.)t  
oe |)oTv  
import org.rut.util.algorithm.SortUtil; =2zJ3&9  
+"cq(Y@  
/** 9N<<{rQ,F  
* @author treeroot 6)-X  
* @since 2006-2-2 57zSu3v4Y  
* @version 1.0 */|lJm'R  
*/ 5JCG2jqx0  
public class BubbleSort implements SortUtil.Sort{ (\a]"g,]v  
W<$Z=(_v  
/* (non-Javadoc) t2"O  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qnJt5  
*/ f3&[#%  
public void sort(int[] data) { iZNts%Y]  
int temp; ;WM"cJo9  
for(int i=0;i for(int j=data.length-1;j>i;j--){ $Ifmc`r1  
if(data[j] SortUtil.swap(data,j,j-1); cU@SIJ)  
} [}/LD3  
} [t7]{d*  
} i2YuOV!  
} (?`kYTw7g'  
\h DdU+  
} dC $Em@Nb  
2FF4W54I  
选择排序: 8:>1F,  
8x8 uo  
package org.rut.util.algorithm.support; V9( @Y  
v:o({Y 1Aq  
import org.rut.util.algorithm.SortUtil; X*39c b(b  
ng:9 l3 x  
/** zj`v?#ET  
* @author treeroot pUq1|)g  
* @since 2006-2-2 [*HN"  
* @version 1.0 04'~ta(t  
*/ 'wI"Bo6e  
public class SelectionSort implements SortUtil.Sort { O<"}|nbmQ[  
7,|c  
/* O QT;zqup  
* (non-Javadoc) 8p9bCE>\  
* #u"k~La  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'fF;(?  
*/ a /#PLP  
public void sort(int[] data) { )V ;mwT!Q  
int temp; MHai%E  
for (int i = 0; i < data.length; i++) { n\5RAIg  
int lowIndex = i; x2z;6)  
for (int j = data.length - 1; j > i; j--) { W$rH"_@m  
if (data[j] < data[lowIndex]) { X4t s)>"d  
lowIndex = j; ;A'Z4=*~  
} 7J|VD#DE$Y  
} 0-|byAh  
SortUtil.swap(data,i,lowIndex); /yF QeE  
} 2Sp=rI  
} CkD#/  
;SaX;!`39+  
} C;`XlQG `  
{R61cD,n  
Shell排序: {>,V\J0p  
+ 33@?fl.  
package org.rut.util.algorithm.support; %Gj8F4{  
t{FlB!jv  
import org.rut.util.algorithm.SortUtil; ;._7jFj.  
4Hn`'+b  
/** no] z1D  
* @author treeroot ks97k8B  
* @since 2006-2-2 80&.JP.  
* @version 1.0 YoLx>8  
*/ D3^7y.u<)  
public class ShellSort implements SortUtil.Sort{ 'XofD}dm  
^#1.l=s  
/* (non-Javadoc) ?(m jx  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tBT<EV{ G  
*/ AfP 'EP0m  
public void sort(int[] data) { d&u]WVU  
for(int i=data.length/2;i>2;i/=2){ *gF<m9&  
for(int j=0;j insertSort(data,j,i); iMFgmM|  
} E%v?t1>/  
} Wg0g/  
insertSort(data,0,1); Ns0cgCrhX  
} )+"'oY$]}  
<~!Hx+j   
/** eKz?"g/j  
* @param data Ck@J,~x1D  
* @param j HJ[/|NZU$  
* @param i 3=$q  
*/ >sjhA|gXk  
private void insertSort(int[] data, int start, int inc) { hL;8pE8  
int temp; !F4@KAv  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); J}@z_^|"mJ  
} VY"9?2?/  
} Ra/Ukv_v  
} 7aYn0_NKp  
MXiQ1 x  
} U_$qi  
@~"an qT`  
快速排序: )d-.M  
O Xi@c;F  
package org.rut.util.algorithm.support; sf|ke9-3  
!!V#v9{  
import org.rut.util.algorithm.SortUtil; #gaQaUjR  
G0{H5_h  
/** npyAJp  
* @author treeroot nG, U>)  
* @since 2006-2-2 >Clh] ;K  
* @version 1.0 +|{RE.DL  
*/ #E+gXan  
public class QuickSort implements SortUtil.Sort{ $GQ-(/  
KdUnD4d  
/* (non-Javadoc) za9)Q=6FD  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )VK }m9Ae  
*/ |?,[@z _,  
public void sort(int[] data) { 7`H 1f]d  
quickSort(data,0,data.length-1); X_G| hx  
} j:&4-K};Z`  
private void quickSort(int[] data,int i,int j){ |*X*n*oI  
int pivotIndex=(i+j)/2; K+)%KP  
file://swap + "}=d3E6  
SortUtil.swap(data,pivotIndex,j); q4$+H{xB  
jWO/ xX  
int k=partition(data,i-1,j,data[j]); qG/fE'(j&  
SortUtil.swap(data,k,j); wpt='(  
if((k-i)>1) quickSort(data,i,k-1); %?hsoj&k  
if((j-k)>1) quickSort(data,k+1,j); ~i_Tw#}  
(j"(  
} ,prF6*g+WE  
/** 0\~Z5k`IT  
* @param data qcJft'>F  
* @param i Op? OruT[  
* @param j $1zvgep  
* @return Lru-u:  
*/ BH@)QVs-  
private int partition(int[] data, int l, int r,int pivot) { qr50E[  
do{ X$b={]b  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ORWm C!  
SortUtil.swap(data,l,r); Yy JPHw)Z  
} SL&hJs4c'  
while(l SortUtil.swap(data,l,r); H{c?lT  
return l; C#=bW'C  
} ]$ b<Gs  
7"*|2Xq  
} \mN[gT}LHm  
Q U F$@)A  
改进后的快速排序: G02m/8g3  
}o,z!_^PLQ  
package org.rut.util.algorithm.support; .LRxP#B  
3PUAH  
import org.rut.util.algorithm.SortUtil; 4^' 3&vu  
m&oi8 P-6  
/** T\# *S0^  
* @author treeroot Ekm7 )d$  
* @since 2006-2-2 Q_"\Q/=?Do  
* @version 1.0 nCvPB/-  
*/ o:dR5v  
public class ImprovedQuickSort implements SortUtil.Sort { i=32KI(%  
 5q<zN  
private static int MAX_STACK_SIZE=4096; ^Ori| 4}'  
private static int THRESHOLD=10; l  n }}5Q  
/* (non-Javadoc) DrvtH+e  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) m:O(+Fl  
*/ -(JUd4#  
public void sort(int[] data) { {,j6\Cj4  
int[] stack=new int[MAX_STACK_SIZE]; Pe~`16f  
RQvVR  
int top=-1; &?p:3%;Dr  
int pivot; |"$uRV=qm  
int pivotIndex,l,r; 0-3rQ~u  
?vGf fMm  
stack[++top]=0; 5lJ )(|_  
stack[++top]=data.length-1; ?68uS;  
:Ze+%d=  
while(top>0){ QldzQ%4c\  
int j=stack[top--]; d( *fy}  
int i=stack[top--]; I#FF*@oeM  
qkP/Nl. u  
pivotIndex=(i+j)/2; @gBE{)Fj  
pivot=data[pivotIndex]; q1hMmMi  
z&3]%t `C  
SortUtil.swap(data,pivotIndex,j); >1irSUj"~  
F[7x*-NO-  
file://partition bT!($?GNdg  
l=i-1; B7-RU<n  
r=j; gglQU"=g{  
do{ Y ZaP  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Y &r]lD  
SortUtil.swap(data,l,r); h#Ce_,o  
} lZt(&^T  
while(l SortUtil.swap(data,l,r); jB^OP1  
SortUtil.swap(data,l,j); c;I, O  
P8gX CX!>U  
if((l-i)>THRESHOLD){ gKb0)4 AK  
stack[++top]=i; K,}w]b  
stack[++top]=l-1; .Nx W=79t  
} xwzT#DXGJ  
if((j-l)>THRESHOLD){ _#qe#  
stack[++top]=l+1; }Ewo_P&`  
stack[++top]=j; -lRhz!E]  
} [~k]{[NJ  
>n7["7HHk  
} z]$j7dp  
file://new InsertSort().sort(data); eE/%6g  
insertSort(data); +ydm,aKk  
} WA.\*Nqze  
/** 4W\,y_Q o  
* @param data XqR{.jF.  
*/ r.FLGD U  
private void insertSort(int[] data) { ~k4W<   
int temp; /k7wwZiY@  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1);  i j&p4  
} tnW;E\cR  
} VKLU0*2R  
} X#+`e+Df  
H^CilwD158  
} cvAtwQ'  
}w!ps{*  
归并排序: U?U(;nSR\A  
R~B0+:6  
package org.rut.util.algorithm.support; e.6Dl_  
`h;}3r#R{  
import org.rut.util.algorithm.SortUtil; BxX$5u  
{u 30r c"  
/** J35l7HH  
* @author treeroot v`G U09   
* @since 2006-2-2 #cEq_[yI  
* @version 1.0 "L~@.W!@  
*/ ^[M~K5Y  
public class MergeSort implements SortUtil.Sort{ x|apQ6  
3GmK3uM  
/* (non-Javadoc) }?O[N}>,m  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Yn[x #DS  
*/ Jc~E"x  
public void sort(int[] data) { J7a-CI_Tf  
int[] temp=new int[data.length]; ~! Lw1]&  
mergeSort(data,temp,0,data.length-1); .w FU:y4r  
} z(d4)z 8'6  
ye r> x  
private void mergeSort(int[] data,int[] temp,int l,int r){ .g-3e"@  
int mid=(l+r)/2; uU+s!C9r  
if(l==r) return ; O=O(3Pf>  
mergeSort(data,temp,l,mid); j3 P RAe  
mergeSort(data,temp,mid+1,r); Rx. rj~  
for(int i=l;i<=r;i++){ wd`R4CKhP]  
temp=data; %^^h) Wy}  
} \FI^ Vk  
int i1=l; ^~I @ spR4  
int i2=mid+1; c=t*I0-OVS  
for(int cur=l;cur<=r;cur++){ 8D~Dd!~P  
if(i1==mid+1) urxqek  
data[cur]=temp[i2++]; w?ai,Pw  
else if(i2>r) pB'x_z  
data[cur]=temp[i1++]; 5K(n3?1z)  
else if(temp[i1] data[cur]=temp[i1++]; O`[]xs  
else *#ompm  
data[cur]=temp[i2++]; ucFw,sB1  
} ip5u_Xj ?  
} r|8V @.@i  
A1!:BC  
} #6FaIq92V  
Y<ElJ>A2I  
改进后的归并排序: {dZ8;Fy4  
<<BQYU)Ig  
package org.rut.util.algorithm.support; lIy/;hIc  
mSj76' L#  
import org.rut.util.algorithm.SortUtil; u-/3(dKt  
J:W'cH$cR  
/** 0N1' $K$\  
* @author treeroot Fr/QW7B5  
* @since 2006-2-2 `1p?*9Ssn  
* @version 1.0 5fxbA2\  
*/ $WD +Q@6  
public class ImprovedMergeSort implements SortUtil.Sort { \R;K>c7=  
@5*xw1B  
private static final int THRESHOLD = 10; ZmO' IT=Ye  
}Ch[|D=Wd6  
/* 3&'R1~Vh  
* (non-Javadoc) hd=j56P5P  
* = P8~n2V  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &.*T\3UO  
*/ <\xQ7|e  
public void sort(int[] data) { /kb$p8!C".  
int[] temp=new int[data.length]; \1khyF'  
mergeSort(data,temp,0,data.length-1); ]*h&hsS 0  
} |x[$3R1@  
_9qEZV  
private void mergeSort(int[] data, int[] temp, int l, int r) { )ldUayJ  
int i, j, k; r?XDvU  
int mid = (l + r) / 2; C_89YFn+  
if (l == r) 8ok7|DJ  
return; z5I^0'  
if ((mid - l) >= THRESHOLD) Lj-{t% }  
mergeSort(data, temp, l, mid); $ACe\R/%  
else >|S>J+(  
insertSort(data, l, mid - l + 1); dTgM"k  
if ((r - mid) > THRESHOLD) 6 cr^<]v!  
mergeSort(data, temp, mid + 1, r); Uc>LFX& -B  
else o[H\{a>  
insertSort(data, mid + 1, r - mid); |<2JQ[]  
nR#a)et  
for (i = l; i <= mid; i++) { a#6,#Q"  
temp = data; _.hIv8V  
} qFGB'mIrFz  
for (j = 1; j <= r - mid; j++) { .k|-Ks|d|  
temp[r - j + 1] = data[j + mid]; ^K*~ <O-  
} j!"iYtgV  
int a = temp[l]; \c'%4Ao  
int b = temp[r]; 0I6499FQ  
for (i = l, j = r, k = l; k <= r; k++) { _fe0,  
if (a < b) { CYMM*4#  
data[k] = temp[i++]; I[a%a!QO  
a = temp; %G^(T%q| m  
} else { 4I+.^7d  
data[k] = temp[j--]; sF, uIr/  
b = temp[j]; Xd5! Ti}  
} +&zb^C`J  
} nEuct4BcL}  
} MgSp.<!  
xQ_:]\EZ  
/** S@;&U1@h  
* @param data GZ}*r{  
* @param l Y# .6d  
* @param i G-ZrM  
*/ V=Ww>  
private void insertSort(int[] data, int start, int len) { T\.7f~3  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); " Tw0a!  
} e*6U |+kJ  
} )62q|c9F  
} eF*TLI<[^I  
} qL u8!|QT  
}b<87#Nb9R  
堆排序: Rqt[D @;m  
ejDCmD  
package org.rut.util.algorithm.support; wZ}n3R,   
"o~N42DLB%  
import org.rut.util.algorithm.SortUtil; D'Jm!Ap  
`8qT['`#R  
/** 20S9/9ll  
* @author treeroot D;K&  
* @since 2006-2-2 Bl:{p>-q  
* @version 1.0 Nt?2USTs-  
*/ @)S sKk|  
public class HeapSort implements SortUtil.Sort{ zT2F&y q  
P((S2"D<4  
/* (non-Javadoc) 19pND m2H1  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (bM)Nd  
*/ IH*U!_ `  
public void sort(int[] data) { y_;]=hEL  
MaxHeap h=new MaxHeap(); 5>0\e_V  
h.init(data); 0]/,m4a#n  
for(int i=0;i h.remove(); 5? S{W  
System.arraycopy(h.queue,1,data,0,data.length); wCTcGsw W  
} ^M[-K`c}  
Y8{T.\%\+  
private static class MaxHeap{ >}xAg7\^  
w50.gr7  
void init(int[] data){ OYQXi  
this.queue=new int[data.length+1]; & bp#1KR)  
for(int i=0;i queue[++size]=data; ~m009  
fixUp(size); f]{1ZU%4  
} /7!_un9  
} >F_qa=t%[  
g>d7%FFn}  
private int size=0; 1oXz[V  
Ew)n~!s  
private int[] queue; &/z+A{Hi  
Z{8exym  
public int get() { HMl!?%%  
return queue[1]; d;*OO xQV  
} jb#1&L 14  
5#N"WHz!  
public void remove() { w%%6[<3%  
SortUtil.swap(queue,1,size--); G "c&C  
fixDown(1); VPq5xSc?  
} {66Q" H"I  
file://fixdown dM>j<JC=  
private void fixDown(int k) { Cw9@2E'b  
int j; "^e}C@  
while ((j = k << 1) <= size) { /\oyPD`((  
if (j < size %26amp;%26amp; queue[j] j++; ,E n(gm  
if (queue[k]>queue[j]) file://不用交换 ZQgxrZx3  
break; ]x5(bnW x  
SortUtil.swap(queue,j,k); GgZEg ?@  
k = j; >b/k|?xP  
} cQUH%7m  
} QiQ2XW\E  
private void fixUp(int k) { oX=*MEfX  
while (k > 1) { i`ZHjW~`  
int j = k >> 1; ?[NTw./'7A  
if (queue[j]>queue[k]) TV$\v@\ =  
break; }+QhW]nO{F  
SortUtil.swap(queue,j,k); 6_ 33*/>=c  
k = j; F|h ,a;2  
} r P<d[u  
} f<$K.i  
Dn{19V. L  
} TA-(_jm  
p: Q%Lg_I  
} a{%52B"  
&)fhlp5  
SortUtil: Sl+jduc  
P_^ |KEz  
package org.rut.util.algorithm; /S2p``E+  
~Q{[fy=  
import org.rut.util.algorithm.support.BubbleSort; !)l%EJngL  
import org.rut.util.algorithm.support.HeapSort; z_[ 3IAZ  
import org.rut.util.algorithm.support.ImprovedMergeSort; nEZ-h7lzl(  
import org.rut.util.algorithm.support.ImprovedQuickSort; q:D0$YY0  
import org.rut.util.algorithm.support.InsertSort; o q'J*6r  
import org.rut.util.algorithm.support.MergeSort; 5Qm.ECXV  
import org.rut.util.algorithm.support.QuickSort; fjz2m   
import org.rut.util.algorithm.support.SelectionSort; m`1}O"<&i  
import org.rut.util.algorithm.support.ShellSort; r~Is,.zZ}  
<*~BG)b  
/** ] _]6&PZXk  
* @author treeroot -h^} jP8  
* @since 2006-2-2 =4w^)'/  
* @version 1.0 CoKj'jA  
*/ )Zu Q;p  
public class SortUtil { #4|i@0n}D  
public final static int INSERT = 1; ?@,f[U-  
public final static int BUBBLE = 2; JE8p5WaR  
public final static int SELECTION = 3; !m/Dd0  
public final static int SHELL = 4; v2W"+QS}u  
public final static int QUICK = 5; eA~_)-Z-  
public final static int IMPROVED_QUICK = 6; eiNk]KXAYX  
public final static int MERGE = 7; h#6 jUQ  
public final static int IMPROVED_MERGE = 8; NIXcib"tG  
public final static int HEAP = 9; n<Xm%KH.  
ck4T#g;=  
public static void sort(int[] data) { #k|g9`  
sort(data, IMPROVED_QUICK); }IalgQ(i  
} Q e2 /4j4  
private static String[] name={ *t]&b ;=gE  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" "8j;k5<  
}; vSHIl"h  
zLIa! -C  
private static Sort[] impl=new Sort[]{ MWd_ 6XM  
new InsertSort(), TckR_0LNV  
new BubbleSort(), v2uS 6  
new SelectionSort(), oJz:uv8Pe.  
new ShellSort(), JNA}EY^2I.  
new QuickSort(), M$5%QM}  
new ImprovedQuickSort(), 0z<]\a4  
new MergeSort(), 5M.n'*   
new ImprovedMergeSort(), ~"4vd 3  
new HeapSort() z6>ZV6(d2^  
}; #t9=qR~"  
rc{[\1 -N  
public static String toString(int algorithm){ l4BO@   
return name[algorithm-1]; Xta>  
} HDae_.  
.WPR}v,.Z  
public static void sort(int[] data, int algorithm) { ~D-OL* 2  
impl[algorithm-1].sort(data); 7.1E mJ  
} V2sB[Mw  
C,e$g  
public static interface Sort { fKK-c9F   
public void sort(int[] data); Xe^=(| M  
} " ih>T^|  
5Z>pa`_$2  
public static void swap(int[] data, int i, int j) { Qd)cFL "v  
int temp = data; Nz;*;BQK:  
data = data[j]; @xM!:  
data[j] = temp; u g$\&rM>  
} ?0)XS<  
} # *aGzF  
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