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
  • 7311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。 $>LQ6|XRu  
插入排序:  f.)O2=  
.?$gpM?i  
package org.rut.util.algorithm.support; 4.t-i5  
%EB/b  
import org.rut.util.algorithm.SortUtil; Ysv" 6b}  
/** ew4U)2J+  
* @author treeroot N~'c_l  
* @since 2006-2-2 >z@0.pN]7  
* @version 1.0 c\j/k[\<  
*/ PEZ!n.'S  
public class InsertSort implements SortUtil.Sort{ =UWI9M*sz  
|yPu!pfl  
/* (non-Javadoc) 61U09s%\0  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pEA:L$&  
*/ F:S}w   
public void sort(int[] data) { S?2>Er  
int temp; =T7.~W  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Y.p;1"  
} oEpFuWp%A  
} _H@DLhH|=  
} GZIa 4A  
}O p; g^W  
} u>vL/nI  
(#c:b  
冒泡排序: 9hyn`u.  
)8ZH-|N`!E  
package org.rut.util.algorithm.support; qJ-/7-$ ^  
N"ST@/j.A  
import org.rut.util.algorithm.SortUtil; c7H^$_^=  
3ckclO\|>  
/** 'LDQgC*%  
* @author treeroot G 01ON0  
* @since 2006-2-2 q!@4~plz  
* @version 1.0 =Dj#gV  
*/ cFXp  
public class BubbleSort implements SortUtil.Sort{ x kD6Iw  
2&cT~ZX&'  
/* (non-Javadoc) f _:A0  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <:CkgR$/{  
*/ *{5fq_  
public void sort(int[] data) { {_*yGK48n  
int temp; apn*,7ps65  
for(int i=0;i for(int j=data.length-1;j>i;j--){ r9XZ(0/p  
if(data[j] SortUtil.swap(data,j,j-1); h{qgEIk&  
} eyxW 0}[  
} 6aj!Q*(WT  
} `WS&rmq&'  
} 7d\QB (~  
/$%%s=@IL  
} %a7$QF]  
-nwypu  
选择排序: F"mmLao  
lEBLZ}}\  
package org.rut.util.algorithm.support; |uJ%5y#  
-'Mf\h 8  
import org.rut.util.algorithm.SortUtil; ;9#KeA _  
ia? c0xL  
/** [G3E%z  
* @author treeroot yt2PU_),  
* @since 2006-2-2 6L~n.5B~o  
* @version 1.0 E?@m?@*/  
*/ CvdN"k  
public class SelectionSort implements SortUtil.Sort { : rVnc =k  
cz$2R  
/* T u'{&  
* (non-Javadoc) :23P!^Y  
* !5N.B|N t  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) St^5Byd<  
*/ |':{lH6+1  
public void sort(int[] data) { y B$x>Q'C(  
int temp; n&!-9:0  
for (int i = 0; i < data.length; i++) { }QmqoCAE~m  
int lowIndex = i; (h `V+  
for (int j = data.length - 1; j > i; j--) { !n%j)`0M  
if (data[j] < data[lowIndex]) { nr3==21Om4  
lowIndex = j; z@j8lv2j1  
} 1.>m@Slr>  
} HbIF^LeY|R  
SortUtil.swap(data,i,lowIndex); Alq(QDs  
} @}ZVtrz  
} LRF103nw  
*NQ/UXE  
} OZ&o:/*HM  
GN>@ZdVG}#  
Shell排序: H"F29Pu2  
mp3s-YfRc  
package org.rut.util.algorithm.support; |l!aB(NW  
'hf8ZEW9'  
import org.rut.util.algorithm.SortUtil; yDh6KUK  
D/' dTrR  
/** +H2Qk4XFB  
* @author treeroot 4Po_-4  
* @since 2006-2-2 C9;kpqNG#u  
* @version 1.0 c*M} N?|6  
*/ ,"ql5Q4  
public class ShellSort implements SortUtil.Sort{ "Rl}VeDY  
K<J9 ~  
/* (non-Javadoc) DaVa}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) LIrb6g&xj_  
*/ T^q 0'#/  
public void sort(int[] data) { L: x-%m%w  
for(int i=data.length/2;i>2;i/=2){ :E?V.  
for(int j=0;j insertSort(data,j,i); #A.@i+Zv  
} 54qFfN8O  
} fc@A0Hf  
insertSort(data,0,1); 13 wE"-  
} 048kPXm`  
DV{=n C  
/** Hx:;@_g q  
* @param data hv+zGID7  
* @param j PI<vxjOK`  
* @param i 1YMh1+1  
*/ 2T`!v  
private void insertSort(int[] data, int start, int inc) { =R\]=cRbg  
int temp; rM "l@3hP  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); OrG).^l  
} [S<";l8  
} i6N',&jFU  
} S tyfB  
.|=\z9_7S8  
} . ]M"# \  
p 4)Q&k!  
快速排序: wNX]7wMX  
?%kV?eu'  
package org.rut.util.algorithm.support; \Og+c%  
cj@koA'  
import org.rut.util.algorithm.SortUtil; 9>$p  
|nF8gh~}  
/** L=h'Qgk%  
* @author treeroot ,[;G|et  
* @since 2006-2-2 H']+L~j  
* @version 1.0 :H[6Lg\*  
*/ G / 5%.Bf@  
public class QuickSort implements SortUtil.Sort{ ^}C\zW  
SY8C4vb'h  
/* (non-Javadoc) B\n[.(].r  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) F5#YOck&,  
*/ H:\k}*w  
public void sort(int[] data) { "h ^Z  
quickSort(data,0,data.length-1); aN=B]{!  
} Er[A X.3  
private void quickSort(int[] data,int i,int j){ J-4:H gx  
int pivotIndex=(i+j)/2; 'W#D(l9nI  
file://swap 1nOCQ\$l  
SortUtil.swap(data,pivotIndex,j); bN88ua}k{  
|Ds=)S" K  
int k=partition(data,i-1,j,data[j]); A(N4N  
SortUtil.swap(data,k,j); 1&$ nVQ  
if((k-i)>1) quickSort(data,i,k-1); XZwK6F)L  
if((j-k)>1) quickSort(data,k+1,j); c"xK`%e  
\(T /O~b2  
} ,=N.FS  
/** Xm 2'6f,  
* @param data rN{ c7/|  
* @param i 07$o;W@  
* @param j xwty<?dRW1  
* @return |)G<,FJQE_  
*/ (tQc  
private int partition(int[] data, int l, int r,int pivot) { vcd\GN*4f  
do{ { BHO/q3  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); [S W_C  
SortUtil.swap(data,l,r); ]s748+  
} lHIM}~#;nd  
while(l SortUtil.swap(data,l,r); 9k=3u;$v  
return l; v9UD%@tZ  
} :j`s r  
~v"L!=~G;a  
} 1i ] ^{;]  
ZAf7Tz\U  
改进后的快速排序: fxIf|9Qi`  
sN wI 0o  
package org.rut.util.algorithm.support; snikn&  
 7[wieYj{  
import org.rut.util.algorithm.SortUtil; yCX?!E;La  
,v&(YOd  
/** 8JD,u  
* @author treeroot <Ok3FE.K  
* @since 2006-2-2 o8vug$=Z  
* @version 1.0 IqGdfL6[(  
*/ 4H<lm*!^  
public class ImprovedQuickSort implements SortUtil.Sort { ?0,Ngrbe  
#5j\C+P}|  
private static int MAX_STACK_SIZE=4096; a@*\o+Su  
private static int THRESHOLD=10; K_-MYs.  
/* (non-Javadoc) j8`BdKg  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YrKWA  
*/ +2j AC r  
public void sort(int[] data) { BF<ikilR  
int[] stack=new int[MAX_STACK_SIZE]; {qMIGwu  
!? gKqx'T$  
int top=-1; 2 Vrw  
int pivot; 1'\/,Es  
int pivotIndex,l,r; IaXeRq?<  
.6'qoo_N  
stack[++top]=0; tnG# IU *  
stack[++top]=data.length-1; pHJ3nHLQ  
E@3aI Axh  
while(top>0){ #C3.Jef  
int j=stack[top--]; l/awS!Q/nF  
int i=stack[top--]; O8.5}>gDn.  
i7>tU=  
pivotIndex=(i+j)/2; xZv#Es%#  
pivot=data[pivotIndex]; n.G!43@*N  
VU d\QR-  
SortUtil.swap(data,pivotIndex,j); !GGkdg*-*9  
r$~HfskeI  
file://partition _f:W?$\ho  
l=i-1; $p?aVO  
r=j; *`RkTc G  
do{ N*&1GT#9  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Z/;aT -N  
SortUtil.swap(data,l,r); (*)hD(C5  
} }!C)}.L<  
while(l SortUtil.swap(data,l,r); > "=>3  
SortUtil.swap(data,l,j); igR";OQk  
3;s\OW`  
if((l-i)>THRESHOLD){ qm o9G  
stack[++top]=i; 0=E]cQwh  
stack[++top]=l-1; 4Wm@W E  
} l2P=R)@{  
if((j-l)>THRESHOLD){ `lt"[K<  
stack[++top]=l+1; Fun^B;GA:  
stack[++top]=j; ';=O 0)u  
} ?m? ::RH  
1^(ad;BC y  
} R[x_j  
file://new InsertSort().sort(data); 3x'|]Ns  
insertSort(data); xjj6WED  
} }2<7%FL  
/** R',rsGd`6j  
* @param data d,n 'n  
*/ &@Be2!%'9K  
private void insertSort(int[] data) { Y\?"WGL)p  
int temp; -:y,N 9^  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ByNn  
} JHTSUq  
} Vt&2z)Zz  
} Y^EcQzLw  
=.]4;z  
} X LOh7(  
'Xq| Kf (  
归并排序: X!dYdWw*m  
T !WT;A  
package org.rut.util.algorithm.support; F%D.zvKN  
EVC]sUT  
import org.rut.util.algorithm.SortUtil; wHMX=N1/  
\$T(t/$9  
/** *VhL\IjN]  
* @author treeroot "8jf81V*  
* @since 2006-2-2 CSq4x5!_7>  
* @version 1.0 ]{mPh\  
*/ ~^fZx5  
public class MergeSort implements SortUtil.Sort{ MH9q ;?.J  
++Ts  
/* (non-Javadoc) Y;^l%ePuW  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Hp!-248S  
*/ 3E $f)  
public void sort(int[] data) { 9BBmw(M}  
int[] temp=new int[data.length]; Z!zF\<r  
mergeSort(data,temp,0,data.length-1); Ep3N&Imp  
} k(7&N0V%zz  
PB`Y g  
private void mergeSort(int[] data,int[] temp,int l,int r){ F]]]y5t  
int mid=(l+r)/2; ]e>w }L(gV  
if(l==r) return ; 9YQb &  
mergeSort(data,temp,l,mid); Rmt~,cW!\  
mergeSort(data,temp,mid+1,r);  zC@o  
for(int i=l;i<=r;i++){ V0.vQ/  
temp=data; rt~d6|6  
} suiS&$-E  
int i1=l; (G4at2YLd  
int i2=mid+1; O{G?;H$  
for(int cur=l;cur<=r;cur++){ ju8q?Nyhs  
if(i1==mid+1) u jq=F  
data[cur]=temp[i2++]; 2E/"hQw  
else if(i2>r) +LZLy9iKt  
data[cur]=temp[i1++]; g:D>.lKd  
else if(temp[i1] data[cur]=temp[i1++]; cr?Q[8%t1  
else (X1e5j>Ru  
data[cur]=temp[i2++]; #9}D4i.`}  
} (%e .:W${  
} }`QUHIF  
Cc' 37~6~P  
} i6tf2oqO7  
M!A}NWF  
改进后的归并排序: mPN@{.(j  
>WQMqQ^t@  
package org.rut.util.algorithm.support; &<5zqsNJ\a  
)72+\C[*~r  
import org.rut.util.algorithm.SortUtil; bv9i*]  
?U5{Wa85D  
/** { MSkHf=  
* @author treeroot :W:K:lk  
* @since 2006-2-2 B=yqW  
* @version 1.0 fk[-mZ  
*/ $@Rxrx_@M  
public class ImprovedMergeSort implements SortUtil.Sort { m!4ndO;0vh  
4 \K7xM!  
private static final int THRESHOLD = 10; "Hb"F?Yb  
3yY}04[9<  
/* nntuLuW  
* (non-Javadoc) BNl5!X^{  
* ]Svt`0|}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) z8~NZ;A  
*/ :q7Wy&ow  
public void sort(int[] data) { \H~T>j{N  
int[] temp=new int[data.length]; t#/YN.@r  
mergeSort(data,temp,0,data.length-1); VT%NO'0  
} KB,j7 ~V  
e *(!^Q1  
private void mergeSort(int[] data, int[] temp, int l, int r) { WZejp}x  
int i, j, k; f ue(UMF~  
int mid = (l + r) / 2; N/'b$m5= S  
if (l == r) gQelD6c  
return; i2A81>68<  
if ((mid - l) >= THRESHOLD) u+e{Mim  
mergeSort(data, temp, l, mid); He/8=$c%  
else Mzw<{*:r  
insertSort(data, l, mid - l + 1); C12Fl  
if ((r - mid) > THRESHOLD) Oo8VeRZ  
mergeSort(data, temp, mid + 1, r); V/LLaZ TE  
else 2K6qY)/_  
insertSort(data, mid + 1, r - mid); ?.-wnz  
mh{d8<Q2  
for (i = l; i <= mid; i++) { |`,2ri*5A  
temp = data; K5VWt)Z#  
} nH'e?>x~e  
for (j = 1; j <= r - mid; j++) { gHEu/8E  
temp[r - j + 1] = data[j + mid]; FZ<gpIv!NS  
} I-)+bV G  
int a = temp[l]; \?ZB]*Fu  
int b = temp[r]; EHIF>@TZ  
for (i = l, j = r, k = l; k <= r; k++) { JCzeXNY  
if (a < b) { ~i{(<.he  
data[k] = temp[i++]; 1 ~*7f>  
a = temp; J T7nG.9  
} else { xY8$I6  
data[k] = temp[j--]; z}9(x.I  
b = temp[j]; \ gGW8Q;  
} z`}qkbvi  
} |?xN\O^#}  
} oj<gD  
8)3*6+D  
/** :zbQD8jv  
* @param data rmm0/+jY  
* @param l b<ZIWfs  
* @param i #&k5 d:  
*/ J#(LlCs?@c  
private void insertSort(int[] data, int start, int len) { 6=/F$|  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); nYSiS}?S .  
} RnE4<Cy  
} *W1dG#Np}  
} @)M9IOR  
} EU;9 *W<  
qkY:3Ozw  
堆排序: `?@}>.  
n\D&!y[]F  
package org.rut.util.algorithm.support; )[IC?U:5I  
1#2 I  
import org.rut.util.algorithm.SortUtil; ?4&e;83_#y  
S Lj!v&'  
/** |F[+k e  
* @author treeroot ]^7@}Ce_  
* @since 2006-2-2 c_pr  
* @version 1.0 69NeQ$](  
*/ ]|a g  
public class HeapSort implements SortUtil.Sort{ itP,\k7>d  
#A/  
/* (non-Javadoc) U_Ptqqt%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C2I_%nU Z1  
*/ :\c ^*K(9  
public void sort(int[] data) { ,^< R{{{-A  
MaxHeap h=new MaxHeap(); ()?(I?II  
h.init(data); FVbb2Y?R  
for(int i=0;i h.remove(); *OsQ}onv  
System.arraycopy(h.queue,1,data,0,data.length); ^ VyKd  
} 1n8/r}q'H  
@*XV`_!h  
private static class MaxHeap{ RSRS wkC  
ltSU fI  
void init(int[] data){ V)k4:H  
this.queue=new int[data.length+1]; '<)n8{3Q5w  
for(int i=0;i queue[++size]=data; L`TLgH&?R  
fixUp(size); l|[N42+  
} }R2u@%n{  
} JPHL#sKyz  
T&bY a`f]  
private int size=0; V=l0(03j~  
EME|k{W  
private int[] queue; n( yn<  
,[KD,)3y  
public int get() {  8dA~\a  
return queue[1];  K5h  
} <xm7qmqI  
.~;\eW[  
public void remove() { :3Ox~o  
SortUtil.swap(queue,1,size--); ? OM!+O  
fixDown(1); <'oQ \eB  
} /{_:{G!Q0  
file://fixdown cuI TY^6  
private void fixDown(int k) { tcI*a>  
int j; Btn?N  
while ((j = k << 1) <= size) { CAhXQ7w'Z  
if (j < size %26amp;%26amp; queue[j] j++; 7JH6A'&  
if (queue[k]>queue[j]) file://不用交换 </z Eg3F\  
break; <%eG:n,#  
SortUtil.swap(queue,j,k); $6 f3F?y7  
k = j; "KpGlY?^  
} ;6$jf:2m  
} %tGO?JMkd  
private void fixUp(int k) { kTgEd]^&D  
while (k > 1) { 2[W&s&  
int j = k >> 1; S,UDezxg  
if (queue[j]>queue[k]) oMa6(3T?E  
break; d$!RZHo10V  
SortUtil.swap(queue,j,k); Y:[u1~a  
k = j; 7?_CcRe  
} Y$_B1_  
} PJH&  
TC*g|d @b  
} (\x]YMLH  
wmLs/:~  
} m{HS0l'  
zrb}_  
SortUtil: NBGH_6DROw  
~9@UjQ^)F  
package org.rut.util.algorithm; S,he6zS  
rx|pOz,:  
import org.rut.util.algorithm.support.BubbleSort; sPIn|d  
import org.rut.util.algorithm.support.HeapSort; j\M?~=*w  
import org.rut.util.algorithm.support.ImprovedMergeSort; =Xr.'(U  
import org.rut.util.algorithm.support.ImprovedQuickSort; i XjM.G  
import org.rut.util.algorithm.support.InsertSort; NzvXN1_%  
import org.rut.util.algorithm.support.MergeSort;  @q) d  
import org.rut.util.algorithm.support.QuickSort; K$=zi}J W  
import org.rut.util.algorithm.support.SelectionSort; 8":Q)9;%  
import org.rut.util.algorithm.support.ShellSort; ~t~|"u"P  
vFmZ<C' )  
/** tCt#%7J;a  
* @author treeroot X &H"51  
* @since 2006-2-2 ?:0Jav  
* @version 1.0 ECmW`#Otb)  
*/ w7L) '9  
public class SortUtil { 8}:nGK|kx  
public final static int INSERT = 1; |[8Th4*n  
public final static int BUBBLE = 2; Ny/MJ#Lq  
public final static int SELECTION = 3; VIf.q)_k  
public final static int SHELL = 4; dM@1l1h/  
public final static int QUICK = 5; N;%6:I./  
public final static int IMPROVED_QUICK = 6; -KbYOb  
public final static int MERGE = 7; ns4,@C$  
public final static int IMPROVED_MERGE = 8; Ow,b^|  
public final static int HEAP = 9; T)_hpt.  
#/37V2E  
public static void sort(int[] data) { jebx40TA3  
sort(data, IMPROVED_QUICK); |_U= z;Y  
}  Vxt+]5X  
private static String[] name={ uB?ZcF}Tk  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" )V9bI(v  
}; K*dCc}:`  
G3v5KmT  
private static Sort[] impl=new Sort[]{ 2X&qE}%k S  
new InsertSort(), _@/8gPT*i  
new BubbleSort(), a8Wwq?@  
new SelectionSort(), yB6?`3A:  
new ShellSort(), O#r%>;3*  
new QuickSort(), sDV Q#}a  
new ImprovedQuickSort(), Etm?'  
new MergeSort(), PPsE${!  
new ImprovedMergeSort(), C7AUsYM  
new HeapSort()  9gZ$   
}; kcx Ad   
[Vt\$  
public static String toString(int algorithm){ *8XEYZa  
return name[algorithm-1]; Y<8vw d  
} >LuYHr  
syK^<xa  
public static void sort(int[] data, int algorithm) { Y <qm{e  
impl[algorithm-1].sort(data); 3+bt~J0  
} LOJAWR9$^U  
?z u8)U  
public static interface Sort { Y6d@h? ht  
public void sort(int[] data); {VoHh_[5%  
} Y nZiT e@  
<0?W{3NqI  
public static void swap(int[] data, int i, int j) { EJ@ ~/)<  
int temp = data; g=o4Q< #^y  
data = data[j]; hR|MEn6KC  
data[j] = temp; L8 @1THY  
} @\I#^X5lv  
} 0SPk|kr  
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
温馨提示:欢迎交流讨论,请勿纯表情、纯引用!
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八