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
  • 6420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。 cT0g, ^&  
插入排序: M7> \Qk  
iRVLo~  
package org.rut.util.algorithm.support; %-'U9e KN  
6HqK%(  
import org.rut.util.algorithm.SortUtil; L2h+[f  
/** 99:L#0!.W  
* @author treeroot }b^lg&$(  
* @since 2006-2-2 )eV40l$ M  
* @version 1.0 w9PY^U.Y3e  
*/ ::`j@ ]  
public class InsertSort implements SortUtil.Sort{ |B`tRq  
?GC0dN  
/* (non-Javadoc) j5)qF1W,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) t2SZ]|C  
*/ 5#F+-9r  
public void sort(int[] data) { YaT07X.(b  
int temp; ha),N<'  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); >PJ-Z~O'   
} LGMFv  
} fIcv}Y  
} 2Ls<OO  
t]o gn(  
} l&A`  
E>1USKxn  
冒泡排序: UK<"|2^sT  
]\ezES  
package org.rut.util.algorithm.support; f\^QV  
E{ ,O}  
import org.rut.util.algorithm.SortUtil; 7@"X~C  
XHg %X  
/** Q}T9NzOH%  
* @author treeroot rN~`4mZ  
* @since 2006-2-2 By_Ui6:D  
* @version 1.0 QaO`:wJj  
*/ DRIv<=Bt  
public class BubbleSort implements SortUtil.Sort{ R`&ioRWj  
J?<L8;$s7  
/* (non-Javadoc) bcs!4  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?f`-&c;  
*/ @6!JW(,]\  
public void sort(int[] data) { `+o.w#cl  
int temp; =KZ4:d5  
for(int i=0;i for(int j=data.length-1;j>i;j--){ Vel;t<1  
if(data[j] SortUtil.swap(data,j,j-1); u@E M,o  
} ZkJM?Fzq  
} D.6dPzu`  
} \}=b/FL=U  
} p o`$^TB^+  
}sU\6~  
} KV*:,>  
7e<Q{aB  
选择排序: I@ k8^  
Jq#Cn+zW  
package org.rut.util.algorithm.support; F%d"gF0qu  
;^*!<F%t9R  
import org.rut.util.algorithm.SortUtil; `Vi:r9|P  
iPOZ{'Z  
/** ka3 Z5  
* @author treeroot 8TPm[r]  
* @since 2006-2-2 KIFx &A  
* @version 1.0 9gg,Dy  
*/ w0!,1 Ry  
public class SelectionSort implements SortUtil.Sort { ]t3"0  
2~DPq p[  
/* #U}U>4'  
* (non-Javadoc) d/>,U7eS[+  
* WL Lv a<{  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $hQg+nY.  
*/ Snu;5:R  
public void sort(int[] data) { sJ/e=1*  
int temp; g8"7wf`0k  
for (int i = 0; i < data.length; i++) { h12wk2@P/]  
int lowIndex = i; \xxVDr.  
for (int j = data.length - 1; j > i; j--) { i 8Xz  
if (data[j] < data[lowIndex]) { ~a%hRJg  
lowIndex = j; :gq@/COo(  
} yp^*TD/J  
} Vcq?>mH&T  
SortUtil.swap(data,i,lowIndex); B,833Azi  
} Zg&\K~OC  
} H@ms43v\  
QP%Fz#u`  
} ek)(pJ(+#  
X^5"7phI@  
Shell排序: ?myXG92  
l%(`<a]VIB  
package org.rut.util.algorithm.support; \ZRoTh  
~N^vE;  
import org.rut.util.algorithm.SortUtil; 1qe^rz|  
%UQB?dkf$  
/** 'kvFU_)  
* @author treeroot 8M9\<k6  
* @since 2006-2-2 ^&H=dYcV>/  
* @version 1.0 k)V%.Eobf  
*/ U]0)$OH5e  
public class ShellSort implements SortUtil.Sort{ \]A;EwC4C  
E$Pjp oQTf  
/* (non-Javadoc) AsLjU#jn  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M%s$F@  
*/ pHB35=p28  
public void sort(int[] data) { y9li<u<PF  
for(int i=data.length/2;i>2;i/=2){ Xb-c`k~_  
for(int j=0;j insertSort(data,j,i);  ,nR8l  
} 78CJ  
} |u r~s$8y-  
insertSort(data,0,1); YB~t|m65  
} JlQT5k  
~<- ci  
/** @:9fS  
* @param data t} i97;  
* @param j 7&1~O#  
* @param i H#6^-6;/  
*/ .Pes{uHg  
private void insertSort(int[] data, int start, int inc) { oz6+rM6MY  
int temp; ?_>^<1I1  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); G=HxD4l  
} NJf(,Mr*|  
} ]}7rWs[|1  
} (TNY2Ke2 8  
7b,,%rUd  
} J%:/<uCmZ  
4)+IO;  
快速排序: %Rep6=K*$  
a@y5JxFAy  
package org.rut.util.algorithm.support; +c8AbEewg  
0nn]]B@l  
import org.rut.util.algorithm.SortUtil; ,/`E|eG1G  
K6{bYho  
/** Va Yu%  
* @author treeroot NTXL>Q*e  
* @since 2006-2-2 nH>V Da  
* @version 1.0 b]<HhU  
*/ VNrO(j DUv  
public class QuickSort implements SortUtil.Sort{ rgdQR^!l6  
cYM~IA  
/* (non-Javadoc) U+PCvl=x  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Cz@FZb8  
*/ ,r 2VP\hLh  
public void sort(int[] data) { V.Ba''E7  
quickSort(data,0,data.length-1); )s<WG}  
} Yuo1'gE+  
private void quickSort(int[] data,int i,int j){ ?QSx8d  
int pivotIndex=(i+j)/2; BU:Ecchbr  
file://swap n R\n\   
SortUtil.swap(data,pivotIndex,j); [TK? P0  
/witDu7  
int k=partition(data,i-1,j,data[j]); I\rZk9F  
SortUtil.swap(data,k,j); 2PR7M.V 7  
if((k-i)>1) quickSort(data,i,k-1); >mFX^t_,  
if((j-k)>1) quickSort(data,k+1,j); }u-S j/K  
l IVxW+  
} w"a 9'r  
/** vDW&pF_eI>  
* @param data 4l ZJb  
* @param i HKiVEg  
* @param j )'!ml  
* @return kV\-%:-  
*/ ,t%CK!8  
private int partition(int[] data, int l, int r,int pivot) { ?S@R~y0K  
do{ }-{b$6]  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); `[@^m5?b-  
SortUtil.swap(data,l,r); te;Ox!B&  
} @0ov!9]Rw-  
while(l SortUtil.swap(data,l,r); oB0 8  
return l; ] `B,L*m6  
} N$%61GiulT  
<,@H;|mZ  
} &*aer5?`  
y Tw',N{  
改进后的快速排序: 7.$]f71z  
1]>$5 1Q  
package org.rut.util.algorithm.support; eyf4M;goz}  
4Hml.|$  
import org.rut.util.algorithm.SortUtil; OgKWgvy  
0Q$~k  
/** 'je8k7`VA  
* @author treeroot cK|rrwa0  
* @since 2006-2-2 wrQydI  
* @version 1.0 ]M~8 @K  
*/ (L y%{ Y  
public class ImprovedQuickSort implements SortUtil.Sort { i<#h]o C}  
 nOoKGT  
private static int MAX_STACK_SIZE=4096; i$[,-4 v  
private static int THRESHOLD=10; MOP]\ypn  
/* (non-Javadoc) $v:gBlj%"  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) np-T&Pz2  
*/ VR4E 2^  
public void sort(int[] data) { : 'd76pM-  
int[] stack=new int[MAX_STACK_SIZE]; emv;m/&8  
BH&/2tO%  
int top=-1; <Spr6U9p7  
int pivot; 5 6Sh  
int pivotIndex,l,r; hGed/Yr  
B:O+*3j  
stack[++top]=0; [xtK"E#  
stack[++top]=data.length-1; |"CJ  
AZxrJ2G  
while(top>0){ 0{0;1.ZP  
int j=stack[top--]; PyC;f8n'(  
int i=stack[top--]; (B>)2:T1  
TRgY:R_  
pivotIndex=(i+j)/2; ^e?$ ]JiA!  
pivot=data[pivotIndex]; F2bm+0vOJ  
e86Aqehle  
SortUtil.swap(data,pivotIndex,j); $R%+*  
U_ x0KIm  
file://partition J16=!q()  
l=i-1; /&D'V_Q`*  
r=j; v#<\:|XAg  
do{ 2q"_^deI5*  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); M'cJ)-G  
SortUtil.swap(data,l,r); uX[O,l^}  
} e1%rVQ(v  
while(l SortUtil.swap(data,l,r); g|ql 5jW  
SortUtil.swap(data,l,j); FNz84qVIx'  
YO@hE>  
if((l-i)>THRESHOLD){ 7o;x (9  
stack[++top]=i; >"cr-LB  
stack[++top]=l-1; s.^c..e75C  
} \R86;9ov  
if((j-l)>THRESHOLD){ /:#j ?c  
stack[++top]=l+1; W *YW6  
stack[++top]=j; I:F'S#  
} EvwbhvA(  
cy1\u2x_`  
} A#Xj]^-*  
file://new InsertSort().sort(data); 4id3P{aU  
insertSort(data); `GvA241  
} tCWJSi`IJ  
/** ')C|`(hs   
* @param data ,3:QB_  
*/ 4-y6MH  
private void insertSort(int[] data) { `aO.=:O_  
int temp; >65 TkAp  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); X$BXT  
} m9#}X_&x  
} X,>(Y8  
} U:qF/%w  
^pJ0nY# c  
} {B@*DQv  
|.j^G2x  
归并排序: b\1+kB/8  
OYBotk]{1  
package org.rut.util.algorithm.support; d4ic9u*D  
C0zrXhY_v  
import org.rut.util.algorithm.SortUtil; @ (i*-u3Tq  
jZrY=f  
/** 8dc538:q}  
* @author treeroot _kh>Z  
* @since 2006-2-2 %v]7BV^%6  
* @version 1.0 ER{yuw  
*/ ha_@Yqgh  
public class MergeSort implements SortUtil.Sort{ IK8%Q(.c  
/r-8T>m  
/* (non-Javadoc) xC)7eQn/R  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) w'd.;  
*/ GSQfg  
public void sort(int[] data) { a|UqeNI{  
int[] temp=new int[data.length]; r k@UsHy  
mergeSort(data,temp,0,data.length-1); -dl}_   
} gk"mr_03  
D2Y&[zgv  
private void mergeSort(int[] data,int[] temp,int l,int r){ 0HjJaML  
int mid=(l+r)/2; ab{;Z 5O  
if(l==r) return ; !{IC[g n  
mergeSort(data,temp,l,mid); h>dxBN  
mergeSort(data,temp,mid+1,r); ]yo_wGiwY  
for(int i=l;i<=r;i++){ fb /qoZ  
temp=data; aJI>FTdK  
} E\w+kAAf  
int i1=l; fzl=d_  
int i2=mid+1; O8gfiQqF&  
for(int cur=l;cur<=r;cur++){ CP +4k.)*O  
if(i1==mid+1) M z9 3  
data[cur]=temp[i2++]; _O$tuC%  
else if(i2>r) %Hh3u$Y,  
data[cur]=temp[i1++]; o5>/}wIf  
else if(temp[i1] data[cur]=temp[i1++]; /n(9&'H<  
else U%L -NMe  
data[cur]=temp[i2++]; vsH3{:&;"P  
}  ?J<T  
} :H{Bb{B%  
i9KTX%s5^  
} {-Yee[d<?  
<p09oZ{6  
改进后的归并排序: [ qiOd!  
R^w}o,/  
package org.rut.util.algorithm.support; &uPDZ#C-  
dnix:'D1  
import org.rut.util.algorithm.SortUtil; 6zuze0ud  
Hv3W{|  
/** (e(Rr 4  
* @author treeroot )R~a;?T_c0  
* @since 2006-2-2 1f<RyAE?5  
* @version 1.0 cu<y8 :U<  
*/ O5O.><RP  
public class ImprovedMergeSort implements SortUtil.Sort { bCzdszvg3  
4X*Q6rW  
private static final int THRESHOLD = 10; *y{+W   
V+46R ]  
/* gd K*"U  
* (non-Javadoc) F, zG;_  
* p(.N(c  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^eobp.U  
*/ |Hfl&3  
public void sort(int[] data) { =C#*!N73  
int[] temp=new int[data.length]; `T=1<Twc  
mergeSort(data,temp,0,data.length-1); $}db /hY*  
} 9T$u+GX'  
@/LiR>,  
private void mergeSort(int[] data, int[] temp, int l, int r) { B_cgWJ*4  
int i, j, k; :Z[(A"dA  
int mid = (l + r) / 2; hl**zF  
if (l == r) 5\&]J7(  
return; Uh}+"h5  
if ((mid - l) >= THRESHOLD) nW11wtiO.  
mergeSort(data, temp, l, mid); g**5z'7  
else %uua_&#)  
insertSort(data, l, mid - l + 1); i$["aP~G  
if ((r - mid) > THRESHOLD) D!S8oKW  
mergeSort(data, temp, mid + 1, r); ^@K WYAAW5  
else 8]HY. $E  
insertSort(data, mid + 1, r - mid); %{U"EZ]D!  
5*Btb#:  
for (i = l; i <= mid; i++) { ?T <rt  
temp = data; ~~@y_e[N#l  
} =D5wqCT(Q  
for (j = 1; j <= r - mid; j++) { |WBZN1W)  
temp[r - j + 1] = data[j + mid]; ZB$NVY  
} SetX#e?q~  
int a = temp[l]; p.5e: i^LJ  
int b = temp[r]; nn'Af,ko/  
for (i = l, j = r, k = l; k <= r; k++) { ~{$L9;x  
if (a < b) { .+HcAx{/2  
data[k] = temp[i++]; a>w~FUm*  
a = temp; I )5<DZB9  
} else { V,m3-=q  
data[k] = temp[j--]; xvB8YW"  
b = temp[j]; q=+ wI"[  
} .'&V#D0  
} "Vx6 #u@}  
} 6`Lcs  
-zdmr"CA  
/** PV(4$I}  
* @param data z-I|h~ii  
* @param l hVkO%]?  
* @param i 8RU.}PD  
*/ =gs~\q  
private void insertSort(int[] data, int start, int len) { `|,Bm|~:  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); {pC\\}  
} &}E:jt}  
} 2qjyFTT  
} DLXL!-)z  
} 6<PW./rk:  
f7 wm w2  
堆排序: o[oqPN3$Y  
dWUUxKC  
package org.rut.util.algorithm.support; h9jc,X u5X  
Sk$KqHX(  
import org.rut.util.algorithm.SortUtil; Fv A8T 2-v  
_N@(Y:  
/** .lr5!Stb  
* @author treeroot #"<?_fao~  
* @since 2006-2-2 J 3B`Krh  
* @version 1.0 Hnd+l)ng  
*/ 7gr^z)${J  
public class HeapSort implements SortUtil.Sort{ GL`tOD:P"  
0#^Bf[Dn  
/* (non-Javadoc)  ,Y-S(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [4: Yi{>  
*/ #QS?s8IrW  
public void sort(int[] data) { C99&L3bz^(  
MaxHeap h=new MaxHeap(); DN<M?u]  
h.init(data); ?<6@^X"  
for(int i=0;i h.remove(); c$A@T~$  
System.arraycopy(h.queue,1,data,0,data.length); -"tY{}z  
} kT2Wm/L  
qlvwK&W<QM  
private static class MaxHeap{ TL@mM  
^e%k~B^  
void init(int[] data){ x 'mF&^  
this.queue=new int[data.length+1]; gH'3 dS!{  
for(int i=0;i queue[++size]=data; Sc{Tq\t;%  
fixUp(size); (0}j]p'w  
} XL~>rw<  
} |T y=7d,  
G1[(F`t>  
private int size=0; B!uxs  
He<;4?:  
private int[] queue; +q-c 8z  
]!faA\1  
public int get() { LQ>$ >A(  
return queue[1]; 6n,xH!7  
} Yv=g^tw  
T%~SM5  
public void remove() { `2e_ L  
SortUtil.swap(queue,1,size--); 32^#RlSu8  
fixDown(1); 9(OAKUQ  
} K_&_z  
file://fixdown vpV$$=Qwp  
private void fixDown(int k) { R[Nbtbv9Q  
int j; 5*1#jiq  
while ((j = k << 1) <= size) { 61>f(?s  
if (j < size %26amp;%26amp; queue[j] j++; N iISJWk6'  
if (queue[k]>queue[j]) file://不用交换 `;/XK,m-  
break; S(tEw Xy  
SortUtil.swap(queue,j,k); R"{l[9j4>  
k = j; `I#`:hj  
} lRH0)5`  
} Bq{ ]Eh0%  
private void fixUp(int k) { [4\aYB9N  
while (k > 1) { u>}zm_  
int j = k >> 1; t)'dF*L  
if (queue[j]>queue[k]) cd&B?\I  
break;  Fs)  
SortUtil.swap(queue,j,k); qRl/Sl#F  
k = j; 4m\([EO  
} DJ|BM+  
} *m&%vj.Kc  
> Y ] _K  
} \HD-vINV;  
oLw|uU-|  
} gmDR{loX  
h1c{?xH2r  
SortUtil: K"^cq~   
;j!UY.i  
package org.rut.util.algorithm; ^vW$XRnt  
XmlIj8%9[&  
import org.rut.util.algorithm.support.BubbleSort; T]uKH29.%  
import org.rut.util.algorithm.support.HeapSort; `-u7 I  
import org.rut.util.algorithm.support.ImprovedMergeSort; :*cHA  
import org.rut.util.algorithm.support.ImprovedQuickSort; ThiN9! Y  
import org.rut.util.algorithm.support.InsertSort; xU:4Y0y8  
import org.rut.util.algorithm.support.MergeSort; `0z/BCNB  
import org.rut.util.algorithm.support.QuickSort; B.RRdK+:  
import org.rut.util.algorithm.support.SelectionSort; y;r"+bS8  
import org.rut.util.algorithm.support.ShellSort; #<]Iz'\`  
Wp`C:H  
/** x G^f  
* @author treeroot zQ<88E&&Xs  
* @since 2006-2-2 2NYi-@mr  
* @version 1.0 "qE {a>d  
*/ ,(;5%+#n  
public class SortUtil { %ZiK[e3G  
public final static int INSERT = 1; Q.1XP  
public final static int BUBBLE = 2; E|{m"RUOy  
public final static int SELECTION = 3; 1 w17L]4  
public final static int SHELL = 4; ;:?*t{r4#  
public final static int QUICK = 5; OW#_ty_ul  
public final static int IMPROVED_QUICK = 6; b|6!EGh  
public final static int MERGE = 7; SBz/VQ  
public final static int IMPROVED_MERGE = 8; >>j+LRf*  
public final static int HEAP = 9; i pwW%"6  
qw2)v*Fn  
public static void sort(int[] data) { XECikld>  
sort(data, IMPROVED_QUICK); s6/cL|Ex  
} 2m_H*1 HJ  
private static String[] name={ 0mVuD\#=!  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" mt I MW9  
}; 0Nt%YP  
.*:h9AE7vo  
private static Sort[] impl=new Sort[]{ ng 9NE8F  
new InsertSort(), PqI![KxZW  
new BubbleSort(), %z2oDAjX  
new SelectionSort(), RQ|?Ce",  
new ShellSort(), nNu[c[V  
new QuickSort(), Pj._/$R[/  
new ImprovedQuickSort(), W8VO)3nmD  
new MergeSort(), i(P>Y2s  
new ImprovedMergeSort(), M/l95fp   
new HeapSort() hg4J2m  
}; V_lGj  
cCk1'D|X[e  
public static String toString(int algorithm){ hR0]8l|  
return name[algorithm-1]; r.?+gW!C  
} O"8P#Ed  
wR(ttwxK3  
public static void sort(int[] data, int algorithm) { A(NEWO  
impl[algorithm-1].sort(data); wa2~C [  
} Hva{A #  
a}w&dE$!-  
public static interface Sort { pJn>oGeJ&  
public void sort(int[] data); Z@u ;Z[@  
} ]o `4Z"  
?`"<DH~:0B  
public static void swap(int[] data, int i, int j) { Bu' :2"7  
int temp = data; leR" j  
data = data[j]; PB@-U.Z  
data[j] = temp; $6Z[|9W^A  
} ah>Dqb*  
} 9T/<x-FD  
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:
10+5=?,请输入中文答案:十五