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
  • 7809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。 J|8YB3K,  
插入排序: :@A;!'zpL  
"A`'~]/hE  
package org.rut.util.algorithm.support; :%]R x&08  
uQ+$HzxX  
import org.rut.util.algorithm.SortUtil; V)jhyCL  
/** rX}==`#\  
* @author treeroot J0bs$  
* @since 2006-2-2 Yaepy3F  
* @version 1.0 ~'\u:Imuo  
*/ 3? CpylCO  
public class InsertSort implements SortUtil.Sort{ R}<s~` Pl  
ZP/=R<<  
/* (non-Javadoc) .JKaC>oX  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +N&(lj  
*/  :!FwF65  
public void sort(int[] data) { <q=B(J'  
int temp; EPnB%'l\c  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 8gm[Q[  
} 6{WT;W>WT:  
} 640V&<+v  
} TBYL~QQD\C  
L(S.  
} ^P`'qfZ  
=B%e0M  
冒泡排序: FEswNB(]*  
y^BM*CI  
package org.rut.util.algorithm.support; !Shh$iz  
r26Wysi~%  
import org.rut.util.algorithm.SortUtil; >maz t=,  
gcF><i6  
/** BEx^IQ2  
* @author treeroot - & r{%7  
* @since 2006-2-2 9DE)5/c`v  
* @version 1.0 @6 `@.iZ  
*/ +c_CYkHJ/  
public class BubbleSort implements SortUtil.Sort{ !Ve3:OZ.nO  
UeQ% (f  
/* (non-Javadoc) J/2pS  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "!?Ya{  
*/ d_B5@9e#  
public void sort(int[] data) { W)O'( D  
int temp; 6E4L4Vb  
for(int i=0;i for(int j=data.length-1;j>i;j--){ JwVv+9hh  
if(data[j] SortUtil.swap(data,j,j-1); th|Q NG  
} aX:$Q }S  
} 6* w;xf  
} _ RT}Ee}Y  
} .JjuY'-Q  
^[akB|#\9  
} &|*|  
>X)G`N@ !  
选择排序: 8 EH3zm4  
bc-}Qn  
package org.rut.util.algorithm.support; z8MYgn 7  
D~>P/b)v{j  
import org.rut.util.algorithm.SortUtil; an~Kc!Oki  
KguFU  
/** <{uIB;P  
* @author treeroot YdaJ&  
* @since 2006-2-2 Vtri"G8 aB  
* @version 1.0 c?S402M}  
*/ d a9 *>+[  
public class SelectionSort implements SortUtil.Sort { TUr}p aw_  
fsu "Lc  
/* j]^]p; An  
* (non-Javadoc) p(%x&*)f  
* U"Oq85vY  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :wm^04<i   
*/ EZV$1pa  
public void sort(int[] data) { &Y$rVBgQ  
int temp; H\vO0 <X  
for (int i = 0; i < data.length; i++) { 5H2|:GzUc  
int lowIndex = i; AQZ\Kcr  
for (int j = data.length - 1; j > i; j--) { } q(0uzaG  
if (data[j] < data[lowIndex]) { =QRZ(2Wq  
lowIndex = j; L Jx g  
} ,55`s#;  
} 0g\&3EvD  
SortUtil.swap(data,i,lowIndex); 9 |Y?#oZ1  
} Mt>DAk  
} Fjb[Ev  
d-aF-  
} mH"`46  
Q<qIlNE  
Shell排序: @hPbD?)M  
<Jz>e}*)  
package org.rut.util.algorithm.support; XMdYted  
6D<A@DR9J  
import org.rut.util.algorithm.SortUtil; $'Z!Y;Ue  
0M p>X  
/** ]gZjV  
* @author treeroot Z(P#]jI]  
* @since 2006-2-2 nFSa~M  
* @version 1.0 G$b4`wt  
*/ 3}Pa,u N  
public class ShellSort implements SortUtil.Sort{ ?~Des"F6)1  
sEa:p: !  
/* (non-Javadoc) T}*'9TB  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) hV)I C9  
*/ MRc^lYj{  
public void sort(int[] data) { 19_F\32  
for(int i=data.length/2;i>2;i/=2){ 5YasD6l  
for(int j=0;j insertSort(data,j,i); sh 1fz 6g  
} Jo ^ o`9  
} [nrP; _  
insertSort(data,0,1); L~~aW0,  
} zoU.\]#C  
57r)&8  
/** .IgQn|N  
* @param data jQhf)B  
* @param j PZs  
* @param i c=gUY~Rl  
*/ M<729M  
private void insertSort(int[] data, int start, int inc) { IP3-lru  
int temp; >*MB_m2|  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 6dh PqL  
} Velmq'n  
} -#r_9HQ,w  
} 1 /`>Eh  
<~3 a aO  
} Cnolka"  
ZI1RB fR  
快速排序: h;6@-\6  
BI s!  
package org.rut.util.algorithm.support; Q.Acmht#  
 T-\,r  
import org.rut.util.algorithm.SortUtil; x9=lN^/4  
-:QyWw/d  
/** `#V"@Go  
* @author treeroot ?cJ$=  
* @since 2006-2-2 jL# akV  
* @version 1.0 *=8)]_=f  
*/ +2?[=g4;}  
public class QuickSort implements SortUtil.Sort{ _ :z~P<%s  
7]Egu D4  
/* (non-Javadoc) U6Qeode  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {2nXItso  
*/ ATU@5,9  
public void sort(int[] data) { 1\2 m'o  
quickSort(data,0,data.length-1); ]k Pco4  
} aj\'qRrU$  
private void quickSort(int[] data,int i,int j){ ` C1LR,J  
int pivotIndex=(i+j)/2; R8E<;^?j  
file://swap L%DL n  
SortUtil.swap(data,pivotIndex,j); i0P+,U  
"YBA$ef$  
int k=partition(data,i-1,j,data[j]); ,ZSuo4  
SortUtil.swap(data,k,j); r{btBv  
if((k-i)>1) quickSort(data,i,k-1); V6L_aee}CK  
if((j-k)>1) quickSort(data,k+1,j); s-*XAn ot  
>dM'UpN@  
} Wwz>tE  
/** ps]6,@uyB  
* @param data 3B0%:Jj  
* @param i ;# {x_>M  
* @param j g^idS:GtX5  
* @return  LCG<  
*/ _YY)-H  
private int partition(int[] data, int l, int r,int pivot) { {*2A% }S  
do{ U{x'@/Ld  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 'D4NPG`z  
SortUtil.swap(data,l,r); ^~0 r+w61  
} .cb mCFXL  
while(l SortUtil.swap(data,l,r); G`n-WP  
return l; zt8ZJlNK  
} C" sa.#}  
Z_;' r|c  
} [Yv5Sw  
U+ 8[Ia(t  
改进后的快速排序: z7CYYU?  
#wo_  
package org.rut.util.algorithm.support; 4eKJ\Q=nX5  
M]W4S4&Y=  
import org.rut.util.algorithm.SortUtil; YcI]_[  
5Ql6?U HD  
/** <[q)2 5RL  
* @author treeroot A-~)7-  
* @since 2006-2-2 gp}S 1  
* @version 1.0 k4@GjO1"$  
*/ #\jPBLc  
public class ImprovedQuickSort implements SortUtil.Sort { H0Tt(:.&  
T&c[m!}X|t  
private static int MAX_STACK_SIZE=4096; lyV]-w  
private static int THRESHOLD=10; dug RO[  
/* (non-Javadoc) =:b/z1-v  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #: F)A_Y  
*/ Z` Aiw."|  
public void sort(int[] data) { 2vwT8/  
int[] stack=new int[MAX_STACK_SIZE]; GP[$&8\M  
O~D}&M@/R  
int top=-1; 6hZhD1lDG^  
int pivot; #<JrSl62(K  
int pivotIndex,l,r; G{J9Fb8  
%H@fVWe2wT  
stack[++top]=0; }X$>84s>[P  
stack[++top]=data.length-1; 5ZSw0A(w  
5t PmrWZ  
while(top>0){ $&4Zw6"=  
int j=stack[top--]; U!Lws#\X  
int i=stack[top--]; j04Q3d \f  
e#AB0-f  
pivotIndex=(i+j)/2; qj|GAGrQ2  
pivot=data[pivotIndex]; q\~7z1   
D Lu]d$G  
SortUtil.swap(data,pivotIndex,j); WgIVhj  
V=c&QPP  
file://partition f="}.  
l=i-1; T4UY%E!0  
r=j; Y}Ov`ZM!r  
do{ &8(2U-  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); N5s_o0K4TU  
SortUtil.swap(data,l,r); f ZISwr  
} _E~uuFMn*R  
while(l SortUtil.swap(data,l,r); OS!47Z /q  
SortUtil.swap(data,l,j); &@RU}DnvM&  
# WxH  
if((l-i)>THRESHOLD){ c(~M<nL0  
stack[++top]=i; 5E%W;$3Pb  
stack[++top]=l-1; ^^[,aBu  
} l/`Z+];  
if((j-l)>THRESHOLD){ cx$Oh`-Car  
stack[++top]=l+1; vb%\q sf  
stack[++top]=j; . v;Npm2  
} .-r 1.'.A  
}vL[N~5\  
} =gj]R  
file://new InsertSort().sort(data); )FB)ZK;  
insertSort(data); 4Qw!YI#40$  
} T^79p$  
/** )&w\9}B:  
* @param data ^!}lA9\gY  
*/ )~J/,\  
private void insertSort(int[] data) { &K7g8x"x.  
int temp; vEb~QX0~  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1);  *Vc}W  
} j/W#=\xz  
} qaUHcdH  
} 2Zl65  
U9@q"v-  
} wU=(_S,c  
aH:eu<s  
归并排序: Ji7A9Hk  
;[|x5o /<  
package org.rut.util.algorithm.support; gcz1*3)  
E 1>3[3  
import org.rut.util.algorithm.SortUtil; ~r{Nc j  
u%T.XgY=j  
/** s_]rje8`  
* @author treeroot k'{lo _  
* @since 2006-2-2 h.c)+wz/%C  
* @version 1.0 _x:K%1_[  
*/ =e4,)Wd9&  
public class MergeSort implements SortUtil.Sort{ ve>8vw2  
Ar\`OhR  
/* (non-Javadoc) 20J:_+=]  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h\yYg'CC  
*/ -j(/5.a  
public void sort(int[] data) { aWit^dp  
int[] temp=new int[data.length]; SY)o<MD  
mergeSort(data,temp,0,data.length-1); Qdtfi1_Y1  
} ";GLX%C!{@  
Zw }7vD0  
private void mergeSort(int[] data,int[] temp,int l,int r){ ld3,)ZY  
int mid=(l+r)/2; oc15!M3$  
if(l==r) return ; 2;q6~Y,  
mergeSort(data,temp,l,mid); D6 M:pIN*  
mergeSort(data,temp,mid+1,r); f[X>?{q  
for(int i=l;i<=r;i++){ c~>M7e(  
temp=data; ^x4gUT-Wy  
} %7{6>6%  
int i1=l; L 5>>gG ,  
int i2=mid+1; 2\7]EW  
for(int cur=l;cur<=r;cur++){ F<I-^BY)  
if(i1==mid+1) 7igrRU#1%  
data[cur]=temp[i2++]; {yJ{DU?%Y  
else if(i2>r) \Oc3rJ(  
data[cur]=temp[i1++]; 7%0PsF _  
else if(temp[i1] data[cur]=temp[i1++]; > sUk6Z~  
else al^ yCoB  
data[cur]=temp[i2++]; _)p%  
} f'}23\>  
} jdhhvoQ  
~#g Vs*K  
} r<"1$K~Ka  
Kyv$yf 9  
改进后的归并排序: $H5Xa[  
GSMP)8 W  
package org.rut.util.algorithm.support; LNr2YRpyz  
nc`[fy|}  
import org.rut.util.algorithm.SortUtil; `OBDx ^6F  
$#0%gs/x  
/** 6-<r@{m$  
* @author treeroot '&UX'Dd~Q  
* @since 2006-2-2 6~}=? sX4  
* @version 1.0 yvVs9"|0  
*/ 9<xe%V=ki  
public class ImprovedMergeSort implements SortUtil.Sort { |vGz 1jLV  
D F0~A  
private static final int THRESHOLD = 10; d/|@"z^?  
~DCw [y  
/* hmks\eb~  
* (non-Javadoc) \l#=p+x5  
* M34*$>bk  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Z EG  
*/ u< ):gI  
public void sort(int[] data) { k8w8I$QEM  
int[] temp=new int[data.length]; (/Nw  
mergeSort(data,temp,0,data.length-1); z<)?8tAgq  
} sYeZ.MacU  
qG~O] ($  
private void mergeSort(int[] data, int[] temp, int l, int r) { -N9U lW2S  
int i, j, k; 1z*]MYU  
int mid = (l + r) / 2; 1z{Azp MZ  
if (l == r) u0N1+-6kr+  
return; 6n<:ph,h;  
if ((mid - l) >= THRESHOLD) zaX30e:R  
mergeSort(data, temp, l, mid); >\MV/!W  
else ;o#dmG  
insertSort(data, l, mid - l + 1); /\C9FGS  
if ((r - mid) > THRESHOLD) vk{dL'  
mergeSort(data, temp, mid + 1, r); $S6AqUk$  
else ?-*_v//g  
insertSort(data, mid + 1, r - mid); )=8X[<^i  
_4.fT  
for (i = l; i <= mid; i++) { j# o0y5S  
temp = data; Y]ZOvA5W  
} tR*J M$T  
for (j = 1; j <= r - mid; j++) { Z~$fTW6g  
temp[r - j + 1] = data[j + mid]; zX|CW;  
} VNaa(Q  
int a = temp[l]; tZ4W]od  
int b = temp[r]; )PR{ia64;<  
for (i = l, j = r, k = l; k <= r; k++) { Z1*y$=D?3[  
if (a < b) { E5.)ro=$  
data[k] = temp[i++]; qksN {t  
a = temp; *"4 OXyV  
} else { ;Q-(tGd  
data[k] = temp[j--]; (%\N-[yZ  
b = temp[j]; hCc I >[H5  
} 2v yB [(  
} iv\?TAZC  
} *h$Dh5%P  
.~C*7_  
/** |VTm5.23  
* @param data nB"q  
* @param l "o% N`Xlx  
* @param i 7@MVInV9  
*/ oO!@s`  
private void insertSort(int[] data, int start, int len) { YP+0 uZ[g  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); vlx wt~  
} O Y/QA  
} _! \X>rfz  
} !PJ;d)\T  
} 7*uG9iX  
)}vQ?n[:'  
堆排序: ZA+$ZU^  
J?u",a]|H"  
package org.rut.util.algorithm.support; <#LH L  
5"k _Ms7R,  
import org.rut.util.algorithm.SortUtil; vY6eg IO  
mI"`.  
/** ]#TL~u[  
* @author treeroot ~cQP4 kBD]  
* @since 2006-2-2 Pa%XLn'5  
* @version 1.0 , )u}8ty3j  
*/ <HI5xB_  
public class HeapSort implements SortUtil.Sort{ NZmmO )p4  
,NPU0IDG>  
/* (non-Javadoc) " #_NA`$i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1KAA(W;nq  
*/ &KX|gB'  
public void sort(int[] data) { vD^^0-Pk6  
MaxHeap h=new MaxHeap(); 5fSDdaO  
h.init(data); yUqvF6+26  
for(int i=0;i h.remove(); 0X~Dxs   
System.arraycopy(h.queue,1,data,0,data.length); ':kBHCR7  
} q^>$YY>F  
|s[m;Qm[ku  
private static class MaxHeap{ kfM}j  
n-}.Yc  
void init(int[] data){ 9T`xW]Zf  
this.queue=new int[data.length+1]; ) ^!oM  
for(int i=0;i queue[++size]=data; &}wKC:LSP  
fixUp(size); V!a|rTU6  
} F;}?O==H;  
} `{<2{}2M  
C<eeAWP3v  
private int size=0; _)ZAf% f?  
;9/6X#;$  
private int[] queue; .9S  
s=u0M;A0Q  
public int get() { S\MD]>4  
return queue[1]; O"nY4  
} LX!16a@SxA  
-;_NdL@  
public void remove() { +TfMj1Zx  
SortUtil.swap(queue,1,size--); UdT ~ h  
fixDown(1); E _/v$  
} hnmFhJ !g  
file://fixdown Fu(e4E  
private void fixDown(int k) { &l-g3l[  
int j; = r_&R#~GT  
while ((j = k << 1) <= size) { :~{XL>:S  
if (j < size %26amp;%26amp; queue[j] j++; &W)k s  
if (queue[k]>queue[j]) file://不用交换  J<V}g v  
break; 76 #  
SortUtil.swap(queue,j,k); yAi#Y3!::  
k = j; p$0;~1vH  
} 6WzE'0Nyr  
} qL,QsRwN  
private void fixUp(int k) { #}^ZxEU  
while (k > 1) { gh['T,  
int j = k >> 1;  QSmE:Y  
if (queue[j]>queue[k]) *B#<5<T  
break; 5MO:hE5sm  
SortUtil.swap(queue,j,k); [="moh2*f  
k = j; GL.& g{$#+  
} fI t:eKHr  
} pzCD' !*  
uZW ?0W  
} U]@t\T3W  
4Q,HhqV'  
} nZ$,Bjb  
iEsI  
SortUtil: 8n,i5>!d  
Z"mpE+U*  
package org.rut.util.algorithm; h,\^Sb5AP  
 7=6p  
import org.rut.util.algorithm.support.BubbleSort; VQ$=F8ivG  
import org.rut.util.algorithm.support.HeapSort; mdoy1a  
import org.rut.util.algorithm.support.ImprovedMergeSort; D-8%lGS  
import org.rut.util.algorithm.support.ImprovedQuickSort; ouPwhB,bg  
import org.rut.util.algorithm.support.InsertSort; ?k<wI)JR  
import org.rut.util.algorithm.support.MergeSort; GmcxN<  
import org.rut.util.algorithm.support.QuickSort;  N_=7  
import org.rut.util.algorithm.support.SelectionSort; F C2oP,  
import org.rut.util.algorithm.support.ShellSort; J<H$B +;qR  
m Wsegq4  
/** 1x V~EX  
* @author treeroot B@63=a*kG  
* @since 2006-2-2 EN+WEMro  
* @version 1.0 ;#G>qo  
*/ rM2?"  
public class SortUtil { Go^W\y   
public final static int INSERT = 1; !-|&  
public final static int BUBBLE = 2;  d9R0P2  
public final static int SELECTION = 3; yaa+j8s]  
public final static int SHELL = 4; =9LC "eI&|  
public final static int QUICK = 5; \V7Hi\)  
public final static int IMPROVED_QUICK = 6; 3`5?Zgp  
public final static int MERGE = 7; 6T;C+Y$  
public final static int IMPROVED_MERGE = 8; *$1*\oCtz  
public final static int HEAP = 9; 2Qc&6-;`  
K}1>n2P  
public static void sort(int[] data) { st:[|`  
sort(data, IMPROVED_QUICK); XaR(q2s  
} S2*-UluG  
private static String[] name={ H*A)U'`  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" ) Z0  
}; XqyfeY5t  
VCX})sp  
private static Sort[] impl=new Sort[]{ 0d9rJv}~  
new InsertSort(), \@*cj8e  
new BubbleSort(), RIC'JLWQ  
new SelectionSort(), &dbX>u q  
new ShellSort(), 6(ju!pE`  
new QuickSort(), H \.EK Z  
new ImprovedQuickSort(), 0;!aO.l]K  
new MergeSort(), tZk@ RX  
new ImprovedMergeSort(), (=)+as"u9*  
new HeapSort() >M[rOu (d  
}; U@BVVH?,o  
IgLP=mqcWK  
public static String toString(int algorithm){ gA`/t e  
return name[algorithm-1]; ?F(t`0=  
} MP w@O0QS  
>Cb% `pe  
public static void sort(int[] data, int algorithm) { $_S^Aw?  
impl[algorithm-1].sort(data); 4Q z  
} bO9F rEz5  
%UV_ 3  
public static interface Sort { f]J?-ks  
public void sort(int[] data); c)rI[P7Q  
} deda=%w0  
z=?ainnKx  
public static void swap(int[] data, int i, int j) { l!~8  
int temp = data; ^X)U^Qd  
data = data[j]; x*}(l%[  
data[j] = temp; OC 7:Dp4  
} jO3Q@N0_  
} E-E+/.A  
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