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
  • 7074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。 2R=DB`3  
插入排序: xqC+0{] y  
*.\  
package org.rut.util.algorithm.support; ?shIj;c[  
|;.o8}  
import org.rut.util.algorithm.SortUtil; vk*=4}:  
/** !PrwH;  
* @author treeroot Gp4A.\7  
* @since 2006-2-2 N5]0/,I}  
* @version 1.0 IX*idcxR  
*/ XK|R8rhg8`  
public class InsertSort implements SortUtil.Sort{ tj Gd )  
][W_[0v  
/* (non-Javadoc) KN7^:cC  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) K$M^gh0  
*/ l5\"9 ,<  
public void sort(int[] data) { UNPezHaz  
int temp; 2zVJvn7  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Bn61AFy`  
} ,hq)1u  
} AZa 6 C w  
} Kv.>Vf.T}_  
.so[I  
} q4}PM[K?=\  
Qtbbb3m;  
冒泡排序: fO0(Z  
F1jglH/MF)  
package org.rut.util.algorithm.support; usEwm,b)  
~_Lr=CD;4  
import org.rut.util.algorithm.SortUtil; ([-|}  
qZ}P*+`Q  
/** deM7fN4lTi  
* @author treeroot aYuD>rD  
* @since 2006-2-2 " R-!(9k^`  
* @version 1.0 OiE;B  
*/ TjHwjRa  
public class BubbleSort implements SortUtil.Sort{ ,0E{h}(  
ZQ_xDKqRV  
/* (non-Javadoc) 3}@_hS"^8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) iCW*]U  
*/ 6oLwfTy  
public void sort(int[] data) { (9<guv  
int temp; Q$:![}[(  
for(int i=0;i for(int j=data.length-1;j>i;j--){ wk6NG/<  
if(data[j] SortUtil.swap(data,j,j-1); ;9~6_@,@o  
} mp9{m`Jb*  
} G:pEE:W[  
} h$.:Uj8/  
} 9lGOWRxR)  
N\HQN0d9  
} tID%}Zv  
abJ" [  
选择排序: AJSx%?h:6  
Qb)C[5a}  
package org.rut.util.algorithm.support; HsnLm67'  
x.3J[=z=>  
import org.rut.util.algorithm.SortUtil; lu#LCG-.  
={5#fgK>  
/** lW(px^&IN  
* @author treeroot c>/. ;p  
* @since 2006-2-2 LJOr!rWi  
* @version 1.0 UTf9S>HS  
*/ #]#sGmW/L  
public class SelectionSort implements SortUtil.Sort { ' Hi : 2Wh  
W-.pmU e2  
/* G!Um,U/g  
* (non-Javadoc) I!>\#K  
* j'aHF#_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nPs7c %  
*/ `5~ +,/Ys  
public void sort(int[] data) { $2M#qkik-  
int temp; /DqLrA  
for (int i = 0; i < data.length; i++) { 4#5:~M }  
int lowIndex = i; w.lAQ5)I%\  
for (int j = data.length - 1; j > i; j--) { u`olW%C/T  
if (data[j] < data[lowIndex]) { Q>R>R*1.j  
lowIndex = j; TYlbU<  
} {X*^s5{;H  
}  ;b`[&g  
SortUtil.swap(data,i,lowIndex); j6  
} >IX/< {);M  
} )r[&RGz6  
!!4Qj  
} V^hE}`>z&  
E[O<S B I  
Shell排序: n @?4b8"  
_:X|.W  
package org.rut.util.algorithm.support; p|Q*5TO  
cwm_nQKk  
import org.rut.util.algorithm.SortUtil; b:R-mg.VT{  
z81esXl  
/** fx@j?*Qb  
* @author treeroot +8v9flh  
* @since 2006-2-2 @&]#uRl|[  
* @version 1.0 <L{(Mj%Z  
*/ ?x+Z)`w_  
public class ShellSort implements SortUtil.Sort{ f8SL3+v  
Q2A7mGN  
/* (non-Javadoc) S a4W`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) kN%MP 6?J  
*/ hzI|A~MFB  
public void sort(int[] data) { A<6%r7&B'  
for(int i=data.length/2;i>2;i/=2){ {t Thy#  
for(int j=0;j insertSort(data,j,i); 52. >+GC  
} fZxIY,  
} n.sbr  
insertSort(data,0,1); fM #7y [  
}  .AYj'Y  
@"Z7nJX  
/** 3SSm5{197  
* @param data .e'eE  
* @param j dB+N\HBY  
* @param i >7roe []-|  
*/ e5.h ?  
private void insertSort(int[] data, int start, int inc) { K9vIm4::d$  
int temp; *]h`KxuO  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); =l.+,|ZH!  
} [HN|\afz  
} *26334B.R  
} {CR5K9  
16L]=&@  
} sP-^~ pp  
@]q BF]6  
快速排序: XxDaz1  
_:+ KMR  
package org.rut.util.algorithm.support; %?aS#4jI  
pGSai &  
import org.rut.util.algorithm.SortUtil; Yk42(!  
mKT>,M  
/** p-%|P ]&  
* @author treeroot }gkM^*$:%  
* @since 2006-2-2 11|Rdd+}  
* @version 1.0 h(qQsxIOhS  
*/ L{E^?iX  
public class QuickSort implements SortUtil.Sort{ %L [&,a  
* ,v|y6  
/* (non-Javadoc) jqH3J2L  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) U:MPgtwe  
*/ G60R9y47c  
public void sort(int[] data) { or k=`};  
quickSort(data,0,data.length-1); hLDA]s  
} XyMG.r-,  
private void quickSort(int[] data,int i,int j){ RUr=fEH  
int pivotIndex=(i+j)/2; []0mX70N  
file://swap /)xlJUq  
SortUtil.swap(data,pivotIndex,j); RNPbH.  
N$x tHtz8"  
int k=partition(data,i-1,j,data[j]); 7~ztwL  
SortUtil.swap(data,k,j); +fx8muz:y  
if((k-i)>1) quickSort(data,i,k-1); PyA&ZkX>  
if((j-k)>1) quickSort(data,k+1,j); ^1Xt]T`e  
}n7t h  
} <*t4D-os  
/** U!XS;a)  
* @param data kD) $2I?  
* @param i }pa9%BQI  
* @param j v`V7OD#:j]  
* @return l;sy0S"DO]  
*/ >a1{397Y}  
private int partition(int[] data, int l, int r,int pivot) { ;. wX@  
do{ n6(i`{i  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); /%A;mlf{  
SortUtil.swap(data,l,r); M(d6Z2ibh  
} '!P"xBVAu  
while(l SortUtil.swap(data,l,r); YUQtMf9  
return l; hUz[uyt  
} N$TL;T>  
cECi')  
} htm{!Z]s0  
Y F:2>w<  
改进后的快速排序: h;V,n  
:K?0e `  
package org.rut.util.algorithm.support; Z?J:$of*  
y fSM  
import org.rut.util.algorithm.SortUtil; X%bFN  
0t#g }  
/** cL8#S>>u.  
* @author treeroot .Hc(y7HV  
* @since 2006-2-2 ?EU\}N J  
* @version 1.0 N~pIC2Woo  
*/ r}u%#G+K,  
public class ImprovedQuickSort implements SortUtil.Sort { $6F)R|  
xsjO)))f  
private static int MAX_STACK_SIZE=4096; Pv<FLo%u<  
private static int THRESHOLD=10; Jdy <w&S  
/* (non-Javadoc) 1Uf*^WW4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) IMnP[WA!  
*/ #Fu>|2F|  
public void sort(int[] data) { ;nmM7TZ;  
int[] stack=new int[MAX_STACK_SIZE]; M}0eu(_|  
M,3wmW&d6  
int top=-1; w(1Gi$Z(Q)  
int pivot; p.fF}B  
int pivotIndex,l,r; ED$DSz)x  
;Qi }{;+  
stack[++top]=0; ~#}Dx :HH  
stack[++top]=data.length-1; <DH*~tLp2  
D\^WXY5e%y  
while(top>0){ xjdw'v+qZo  
int j=stack[top--]; G6K  <  
int i=stack[top--]; JNWg|Qt  
K?#]("De6  
pivotIndex=(i+j)/2; /w]&t\]*  
pivot=data[pivotIndex]; k:A|'NK~  
"0jJh^vk  
SortUtil.swap(data,pivotIndex,j); FVF-:C  
8*g ^o\M  
file://partition t ]c{c#N/  
l=i-1; -~)OF  
r=j; +Ra3bjl  
do{ rZbEvS  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); %Y4e9T".  
SortUtil.swap(data,l,r); [ neXFp}S  
} ~un%4]U  
while(l SortUtil.swap(data,l,r); tLm867`c7  
SortUtil.swap(data,l,j); ?p[O%_Xf  
r^HA aGpC  
if((l-i)>THRESHOLD){ &"uV~AM  
stack[++top]=i; w W$(r-  
stack[++top]=l-1; 7.<^j[?  
} ;]CVb`d  
if((j-l)>THRESHOLD){ GR'Ti*Qi  
stack[++top]=l+1; y?30_#[dN  
stack[++top]=j; L6 6-LMkH  
} +TN9ujL6@  
SQE[m9v  
} ,6<"  
file://new InsertSort().sort(data); 0"xPX#Cvj  
insertSort(data); rFJ[dz  
} %-;b u|  
/** ID};<[  
* @param data S"snB/  
*/ TTI81:fku  
private void insertSort(int[] data) { =OTm2:j#yQ  
int temp; 77gysd\(  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); xPmN},i'R$  
} }0=<6\+:`  
} lm'Zy"~::  
} Q |i9aE  
`GQ{*_-  
} icUT<@0  
*QE<zt  
归并排序: Z& !!]"I  
]!YtH]}  
package org.rut.util.algorithm.support; sCH)gr@gJ^  
h. hjz?  
import org.rut.util.algorithm.SortUtil; H D/5!d  
8{&["?  
/** Sn3:x5H,l  
* @author treeroot Az*KsY{/r  
* @since 2006-2-2 #P2;K dDO  
* @version 1.0 CfT/R/L  
*/ f1{z~i9@$  
public class MergeSort implements SortUtil.Sort{ H*e'Cs/  
{LE&ylE  
/* (non-Javadoc) "Q+83adY4x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I#A2)V0P)  
*/ (!K+P[g  
public void sort(int[] data) { +6W(z3($  
int[] temp=new int[data.length]; >`V}U*}*H  
mergeSort(data,temp,0,data.length-1); 2BB<mv K4  
} Ef7:y|?  
`U`#I,Ln[  
private void mergeSort(int[] data,int[] temp,int l,int r){ #I\Y= XCY  
int mid=(l+r)/2; R U!?-#*  
if(l==r) return ; z YDK $  
mergeSort(data,temp,l,mid); eS!C3xC;J]  
mergeSort(data,temp,mid+1,r); ?;7b*Z  
for(int i=l;i<=r;i++){ (L69{n  
temp=data; &d$~6'x*  
} PjqeE,5  
int i1=l; XYbyOM VI  
int i2=mid+1; ?{J!#`tfV  
for(int cur=l;cur<=r;cur++){ A[/I#Im7  
if(i1==mid+1) ):6 -  
data[cur]=temp[i2++]; A! 6r/   
else if(i2>r) )3E,D~1e%  
data[cur]=temp[i1++]; mVH,HqsXa  
else if(temp[i1] data[cur]=temp[i1++]; H:oQ  
else ~a+NJ6e1  
data[cur]=temp[i2++]; gT1P*N;v  
} |'hLa  
} :\}U9QfCw  
#1Z7&#R/  
} -l*A  
`<vxG4=62\  
改进后的归并排序: we]>(|  
;El <%{(  
package org.rut.util.algorithm.support; H7IW"UkBR  
{7#03k  
import org.rut.util.algorithm.SortUtil; x*8O*!ZZ  
h W.2p+  
/** C|e+0aW  
* @author treeroot $-G`&oT  
* @since 2006-2-2 Lar r}o=  
* @version 1.0 Lx+`<<_dJ  
*/ 12gw#J/)9h  
public class ImprovedMergeSort implements SortUtil.Sort { W,NL*($^  
E/ O5e(h  
private static final int THRESHOLD = 10; q.oLmX  
@FX{M..  
/* ju{%'D!d9  
* (non-Javadoc) RV!<?[  
* -0|K,k  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) W);W.:F  
*/ cC6z,0`3  
public void sort(int[] data) { eqFvrESN~=  
int[] temp=new int[data.length]; 0\ f-z6  
mergeSort(data,temp,0,data.length-1); ~iTxv_\=6u  
} \graMu}-  
Ml`vx  
private void mergeSort(int[] data, int[] temp, int l, int r) { %8D?$v"#Z  
int i, j, k; T\3[F%?  
int mid = (l + r) / 2; sc xLB;  
if (l == r) W^R'@  
return; ba&o;BLUy  
if ((mid - l) >= THRESHOLD) s-6:N9-  
mergeSort(data, temp, l, mid); jH0Bo;  
else {8m1dEC^@Q  
insertSort(data, l, mid - l + 1); _Y#Bm/*  
if ((r - mid) > THRESHOLD) !J# .!}3  
mergeSort(data, temp, mid + 1, r); Yo'K pdn  
else %cj58zO |y  
insertSort(data, mid + 1, r - mid); |\{Nfm=:%  
OOLe[P3J3  
for (i = l; i <= mid; i++) { pG28M]\  
temp = data; JK^[{1 JI  
} Kq7C0)23  
for (j = 1; j <= r - mid; j++) { 5; f\0<-  
temp[r - j + 1] = data[j + mid]; Yw^ Gti'<  
} 3]S`|#J  
int a = temp[l]; l\aUresm  
int b = temp[r]; dpn3 (  
for (i = l, j = r, k = l; k <= r; k++) { .eTk=i[N-  
if (a < b) { okDJ(AIV+  
data[k] = temp[i++]; wP`sXPSmIu  
a = temp;  coAW9=o}  
} else { PW^ 8;[\QP  
data[k] = temp[j--]; Z3`2-r_=  
b = temp[j]; }xJR.]).KW  
} C1ZyB"{  
} o*;2mFP  
} nP u`;no  
=c]a {|W?  
/** "WP% REE!  
* @param data QK7e|M  
* @param l =h[yA f  
* @param i @YB85p"]J.  
*/ R-C5*$  
private void insertSort(int[] data, int start, int len) { `,m7xJZ?y  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); E0jUewG  
} A^vvST%7  
} EE9vk*[@C  
} 3{q[q#"  
} `oPLl0  
aH^{Vv$]M@  
堆排序: tQf!|]#J  
^Fvr f`A'  
package org.rut.util.algorithm.support; T^NJ4L4#  
@#CF".fuN>  
import org.rut.util.algorithm.SortUtil; Z"N(=B  
kxy]vH6m  
/** id4]|jb  
* @author treeroot bQV("~#  
* @since 2006-2-2  2$)mC9  
* @version 1.0 1gk0l'.z  
*/ x Ty7lfSe  
public class HeapSort implements SortUtil.Sort{ N6BNzN}-P  
#{~7G%GPY5  
/* (non-Javadoc) 8>d q=0:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qxSs ~Qc  
*/ OaNc9c"  
public void sort(int[] data) { <vLdBfw&N  
MaxHeap h=new MaxHeap(); i :EO(`  
h.init(data); c _p[yS  
for(int i=0;i h.remove(); kU(kU2u%9  
System.arraycopy(h.queue,1,data,0,data.length); #!1IP~  
} IadK@?X6j  
BDp:9yau  
private static class MaxHeap{ rFO_fIJno  
1^tSn#j  
void init(int[] data){ 'tut4SwC  
this.queue=new int[data.length+1]; :r-.r"[m-  
for(int i=0;i queue[++size]=data; H}a)^90_  
fixUp(size);  )Oo2<:"  
} D2V v\f  
} pd7O`.3  
Ri[S<GOMii  
private int size=0; e@yx}:]h  
)5'rw<:="  
private int[] queue; ]*a@*0=  
_ flg Q  
public int get() { i<Q& D\Pv  
return queue[1]; OMi02tSm  
} mDlCt_h  
W0U`Kt&~a  
public void remove() { /t$*W\PL@  
SortUtil.swap(queue,1,size--); e6o/q)9#  
fixDown(1); hi0XVC95  
} B#Qpd7E+*  
file://fixdown (< :mM  
private void fixDown(int k) { |;~nI'0O])  
int j; p!QR3k.9s  
while ((j = k << 1) <= size) {  I}rGx  
if (j < size %26amp;%26amp; queue[j] j++; h&q=I.3O|?  
if (queue[k]>queue[j]) file://不用交换 b24di  
break; wFp~  
SortUtil.swap(queue,j,k); ` %l&zwj>  
k = j; 7x%S](m%  
} [' ?^>jfr  
} 48:liR  
private void fixUp(int k) { \+G.]|"Y  
while (k > 1) { 7 T mK  
int j = k >> 1; Z~:/#?/  
if (queue[j]>queue[k]) p8$\uo9YQ  
break; :|zp8|  
SortUtil.swap(queue,j,k); ~K_]N/ >  
k = j; ,RR;VKj  
} Oe/73| >U  
} xSx&79Ez<*  
pmoGudaRF  
} Z 4\tY^NI  
+{ S Maq  
} L!?v BL  
6W]OpM  
SortUtil: QN3 qF|))  
\)p4okpR  
package org.rut.util.algorithm; ^4RO  
<|B$dz?r  
import org.rut.util.algorithm.support.BubbleSort; Tm%WWbc  
import org.rut.util.algorithm.support.HeapSort; aD?# ,  
import org.rut.util.algorithm.support.ImprovedMergeSort; ;,mBT[_ZO  
import org.rut.util.algorithm.support.ImprovedQuickSort; ?rAi=w&c  
import org.rut.util.algorithm.support.InsertSort; K?$ 9N}+  
import org.rut.util.algorithm.support.MergeSort; a^%8QJW  
import org.rut.util.algorithm.support.QuickSort; ^dheJ]n=k  
import org.rut.util.algorithm.support.SelectionSort; [y_yPOv  
import org.rut.util.algorithm.support.ShellSort; r^fxyN2V  
h\/^Aa0  
/** }!eF  
* @author treeroot \moZ6J  
* @since 2006-2-2 !p-'t]  
* @version 1.0 2;3x,<Cg  
*/ p .lu4  
public class SortUtil { =_K%$y*  
public final static int INSERT = 1; IES41y<  
public final static int BUBBLE = 2; 8y-e+  
public final static int SELECTION = 3; jkZ_c!  
public final static int SHELL = 4; >F,$;y52  
public final static int QUICK = 5; OY+!aG@.  
public final static int IMPROVED_QUICK = 6; !}z%#$  
public final static int MERGE = 7; )lQN)! .)  
public final static int IMPROVED_MERGE = 8; 0T7M_G'5Q  
public final static int HEAP = 9; Xs{/}wc.q;  
+dDJes!]  
public static void sort(int[] data) { <m~T>Ql1  
sort(data, IMPROVED_QUICK); MP6 \r  
} @=02  
private static String[] name={ yBr$ 0$  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" GTT5<diw  
}; U p_>y>x  
}*xC:A%aS  
private static Sort[] impl=new Sort[]{ C<zx'lw!  
new InsertSort(), s'R~ r  
new BubbleSort(), bMSD/L  
new SelectionSort(), 8W(<q|t  
new ShellSort(), Ti0 (VdY  
new QuickSort(), ac2}3 $u  
new ImprovedQuickSort(), N;e;4,_ n  
new MergeSort(), rdORNlK&  
new ImprovedMergeSort(), s 4MNVT  
new HeapSort() pI'8>_o  
}; ;5&k/CB1  
'=KuJ0`nE9  
public static String toString(int algorithm){ /&~nM  
return name[algorithm-1]; NvXj6U*%  
} |U8>:DEl  
6lB{Ao?|  
public static void sort(int[] data, int algorithm) { {KF7j63  
impl[algorithm-1].sort(data); nL 1IS  
} .t"n]X i  
>l7eoj  
public static interface Sort { P&qy.0  
public void sort(int[] data); I@8+k&nXS  
} v]LFZI5  
YR$tPe  
public static void swap(int[] data, int i, int j) { .d<~a1k  
int temp = data; P58\+9d_  
data = data[j]; jrDz7AfA  
data[j] = temp; rU/-Wq`B  
} 4v rm&k  
} v1`bDS?*Q  
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
如果您提交过一次失败了,可以用”恢复数据”来恢复帖子内容
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八