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
  • 5548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。 M7>(hVEAW'  
插入排序: QRLJ_W^&u  
(_r EAEo  
package org.rut.util.algorithm.support; tA$)cg+.  
~^ ^ NHq  
import org.rut.util.algorithm.SortUtil; N~g :Wf!  
/** |3+m%;X  
* @author treeroot 83cW=?UgA  
* @since 2006-2-2 .D4bqL  
* @version 1.0 >xA),^ YT  
*/ W$qd/'%  
public class InsertSort implements SortUtil.Sort{ DFO7uw1  
]APvp.Tw:  
/* (non-Javadoc) dr{y0`CCN  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) YpUp@/"  
*/ "4H8A =  
public void sort(int[] data) { $|$e%   
int temp; |wox1Wt|E  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 8h<ehNX ^I  
} I _i6-<c.Q  
} xsjO)))f  
} pPVRsXy  
s cdtWA  
} 7([h4bg{  
0)Rw|(Fpo]  
冒泡排序: '!Gs>T+  
F8e<}v&7R  
package org.rut.util.algorithm.support; fag^7rz  
M,3wmW&d6  
import org.rut.util.algorithm.SortUtil; FFEfp.T1M  
kl1Y] ?z}  
/** 44\>gI<  
* @author treeroot Gjz[1d  
* @since 2006-2-2  n i  
* @version 1.0 IMQ]1uq0$  
*/ (#q<\`  
public class BubbleSort implements SortUtil.Sort{ ,jy*1Hjd  
Ip}Vb6}  
/* (non-Javadoc) rVQX7l#YI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) rOD1_X-  
*/ _SZ5P>GIU  
public void sort(int[] data) { gQ~5M'#  
int temp; g8ES8S M  
for(int i=0;i for(int j=data.length-1;j>i;j--){ rZbEvS  
if(data[j] SortUtil.swap(data,j,j-1); %Y4e9T".  
} ">dq0gD  
} ~un%4]U  
} tLm867`c7  
} gLL-VvJ[  
8_uzpeRhJc  
} [O-sVYB  
SW(q$i  
选择排序: DhI>p0* T  
*.f2VQ~H  
package org.rut.util.algorithm.support; >+cVs:  
lf>nbvp  
import org.rut.util.algorithm.SortUtil; =A[5= k>  
;52'}%5  
/** ZF#Rej?  
* @author treeroot o%M<-l"!/  
* @since 2006-2-2 Bk|K%K  
* @version 1.0 Nq8@Nyp  
*/ >s*DrfX6  
public class SelectionSort implements SortUtil.Sort { < /p 8r  
Mo|wME#M  
/* v4*rPGv  
* (non-Javadoc) % U`xu.  
* ~3WL)%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N~=A  
*/ [A~G-  
public void sort(int[] data) { icUT<@0  
int temp; *QE<zt  
for (int i = 0; i < data.length; i++) { Z& !!]"I  
int lowIndex = i; j?(!^ _!m  
for (int j = data.length - 1; j > i; j--) { 0? bA$y  
if (data[j] < data[lowIndex]) { N4^5rrkL  
lowIndex = j; (7$$;  
} /jD-\,:L}  
} (N~$x  
SortUtil.swap(data,i,lowIndex); ~el-*=<m  
} 8zQfY^/{M  
} 96|[}:+$&:  
Edt}",s7  
} M<8ML!N0;t  
p5 ]_}I`+2  
Shell排序: #I\Y= XCY  
8KjRCm,I  
package org.rut.util.algorithm.support; 4\ $3  
: iY$82wQ  
import org.rut.util.algorithm.SortUtil; )c tr"&-  
}HZ{(?  
/** eG] a zt  
* @author treeroot KS>$`ax,  
* @since 2006-2-2 18!VO4u\I  
* @version 1.0 )Id2GV~2B  
*/ E)YVfM  
public class ShellSort implements SortUtil.Sort{ !G=>ve  
|KG&HN fP-  
/* (non-Javadoc) !Rw&DFU  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 8:g!w:$x  
*/ -wr(vE,  
public void sort(int[] data) { FRyPeZR  
for(int i=data.length/2;i>2;i/=2){ -Wo15O"  
for(int j=0;j insertSort(data,j,i); Y_H/3?b%  
} RtF8A5ys  
} -Wjh**  
insertSort(data,0,1); K}x/ BhE+  
} yqcM(,0]  
tEhr  
/** OeTu?d&N  
* @param data `bP?o  
* @param j D\rmaF+  
* @param i 2cnj@E:5l  
*/ |4SW[>WT:  
private void insertSort(int[] data, int start, int inc) { VuWib+fT  
int temp; fGu!M9qN4  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); f$D@*33ft  
} e@ oWwhpE  
} .LE+/n  
} TgaYt\"i[  
;L6Xs_L~  
} ?JqjYI{$  
dtW0\^ .L  
快速排序: QrS$P09=\  
__)qw#  
package org.rut.util.algorithm.support; F' BdQk3o  
%8D?$v"#Z  
import org.rut.util.algorithm.SortUtil; :('I)C  
W^R'@  
/** ba&o;BLUy  
* @author treeroot s-6:N9-  
* @since 2006-2-2 jH0Bo;  
* @version 1.0 1xC`ZhjcD  
*/ J:};n@<  
public class QuickSort implements SortUtil.Sort{ ,ep9V ,+|  
;X7i/D Q  
/* (non-Javadoc) j.& ;c'V$.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >h7$v~nra  
*/ T&/_e   
public void sort(int[] data) { nLd~2qBuv  
quickSort(data,0,data.length-1); B)a@fmp"a  
} NV~vuC  
private void quickSort(int[] data,int i,int j){ Zz")`hUG  
int pivotIndex=(i+j)/2; tp+=0k2i  
file://swap <IH*\q:7  
SortUtil.swap(data,pivotIndex,j); U"x~Jb3]O  
Wm>b3:  
int k=partition(data,i-1,j,data[j]); >EBC 2WJ  
SortUtil.swap(data,k,j); x u,htx  
if((k-i)>1) quickSort(data,i,k-1); *<dHqK`?C  
if((j-k)>1) quickSort(data,k+1,j); eBvW#Hzp  
}xJR.]).KW  
} [d:@1yc  
/** 4WG=m}X  
* @param data #Q+R%p  
* @param i 0x#E4v (UA  
* @param j \\s?B K  
* @return @YB85p"]J.  
*/ R-C5*$  
private int partition(int[] data, int l, int r,int pivot) { V/&o]b   
do{ /s8/q2:  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); MCd F!{  
SortUtil.swap(data,l,r); 2fP~;\AP  
} 9fCO7AE0#  
while(l SortUtil.swap(data,l,r); <?4cWp|i  
return l; -pX|U~a[  
} Mk "vv k  
a 8-;   
} MLeX;He  
`:3&@.{T(  
改进后的快速排序: \CwtX(6.  
j`Nh7+qs  
package org.rut.util.algorithm.support; jMqx   
 2$)mC9  
import org.rut.util.algorithm.SortUtil; *#GDi'0  
)-)pYRlO  
/** #{~7G%GPY5  
* @author treeroot xv&S[=Dt  
* @since 2006-2-2 %t{Sb4XZ4k  
* @version 1.0 4JSZ0:O  
*/ a+'}XEhSC:  
public class ImprovedQuickSort implements SortUtil.Sort { #!1IP~  
j$0zD:ppW  
private static int MAX_STACK_SIZE=4096; j`hNZ%a  
private static int THRESHOLD=10; ? KF=W  
/* (non-Javadoc) ;,v.(Z ic  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !c."   
*/ <L2GUX36#  
public void sort(int[] data) { e SK((T  
int[] stack=new int[MAX_STACK_SIZE]; n5>B LtY  
9PCa*,  
int top=-1; 0QMaM  
int pivot; *{Yi}d@h(  
int pivotIndex,l,r; R @OSqEnr  
,b4~!V  
stack[++top]=0; MyqiBGTb  
stack[++top]=data.length-1; XUf7yD  
i#tbdx#  
while(top>0){ J$#D:KaU:N  
int j=stack[top--]; qKA_ A%  
int i=stack[top--]; |[DV\23{G  
)kF2HF  
pivotIndex=(i+j)/2; pqOA/^ar  
pivot=data[pivotIndex]; nrF!;:x  
~@?"' !U  
SortUtil.swap(data,pivotIndex,j); ,,Jjr[A_j  
~R'BU=!;F  
file://partition [~!.a\[RW  
l=i-1; ,5=kDw2  
r=j; q _19&;&  
do{ Yu1QcFuy  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); cNx \&vpd  
SortUtil.swap(data,l,r); V*>73I  
} {dZ!I  
while(l SortUtil.swap(data,l,r); t(wZiK}  
SortUtil.swap(data,l,j); OCwW@OC +  
qT"drgpi3  
if((l-i)>THRESHOLD){ gu^_iU  
stack[++top]=i; sD2*x T  
stack[++top]=l-1; t[/\KG8  
} y~x#pC*w  
if((j-l)>THRESHOLD){ |1lf(\T_  
stack[++top]=l+1; $vW^n4!  
stack[++top]=j; 0c`sb+?  
} fJvr+4i4k  
219R&[cb  
} (I>HWRH  
file://new InsertSort().sort(data); prqyoCfq  
insertSort(data); Y' 2-yB  
} F9F" F  
/** 3>H2xh3Y  
* @param data LgO i3  
*/ PIgGXNo  
private void insertSort(int[] data) { 3,%nkW  
int temp; 9) jo7,VM  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); @>+^W&  
} .zQ4/  
} ; A x=]Q  
} sN"p5p  
r^fxyN2V  
} tN[St  
/L)?> tg  
归并排序: qwL 0~I  
Nz3zsP$  
package org.rut.util.algorithm.support; sWp{Y.  
f%vHx,  
import org.rut.util.algorithm.SortUtil; =_K%$y*  
IES41y<  
/** 8y-e+  
* @author treeroot *iPs4Es-  
* @since 2006-2-2 ,:c :6Y^  
* @version 1.0 gkSGRshf  
*/ LQ~LB'L  
public class MergeSort implements SortUtil.Sort{ Z`^ K%P=  
& 8ccrw  
/* (non-Javadoc) }m9S(Wal  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f:n]Exsy  
*/ qK<aZ%V  
public void sort(int[] data) { MP6 \r  
int[] temp=new int[data.length]; @=02  
mergeSort(data,temp,0,data.length-1); yBr$ 0$  
} Q~x*bMb.  
j@%K*Gb`  
private void mergeSort(int[] data,int[] temp,int l,int r){ >|v=Ba6R0  
int mid=(l+r)/2; p Z0=  
if(l==r) return ; t^`<*H  
mergeSort(data,temp,l,mid); luJ{Iq  
mergeSort(data,temp,mid+1,r); We[<BJ o4  
for(int i=l;i<=r;i++){ |3s.;w K  
temp=data; m]bL)]Z  
} dVasm<lZ  
int i1=l; '~ jy  
int i2=mid+1; hVQ7'@  
for(int cur=l;cur<=r;cur++){ 2q2p=H>&  
if(i1==mid+1) #k"1wSx16  
data[cur]=temp[i2++]; }".\ 4B$n  
else if(i2>r) tpN]evp|  
data[cur]=temp[i1++]; /E=h{|  
else if(temp[i1] data[cur]=temp[i1++]; 6lB{Ao?|  
else {KF7j63  
data[cur]=temp[i2++]; ~,(0h:8  
} >l7eoj  
} SIKk|I)  
\DG( 8l  
} Yt\E/*%  
trID#DT~  
改进后的归并排序: % <8K^|w  
^hQ:A4@q  
package org.rut.util.algorithm.support; -0=}|$H.  
FCsyKdM  
import org.rut.util.algorithm.SortUtil; 4v rm&k  
#R~">g:w  
/** S/#) :,YS  
* @author treeroot MAsWds`bpB  
* @since 2006-2-2 u.ULS3`C/X  
* @version 1.0 k+W  
*/ sg'Y4  
public class ImprovedMergeSort implements SortUtil.Sort { >=.ch5h3J)  
?K= gg<  
private static final int THRESHOLD = 10; |N phG|  
~EM#Hc,  
/* =Bcux8wA#6  
* (non-Javadoc) |U;w!0  
* gJWlWVeq$  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Mq rt-VPh  
*/  ` 4s#5g  
public void sort(int[] data) { >=Rd3dgDG  
int[] temp=new int[data.length]; &-EyM*:u!  
mergeSort(data,temp,0,data.length-1); B`'}&6jr.  
} T>AI0R3  
*so6]+)cU  
private void mergeSort(int[] data, int[] temp, int l, int r) { ,*9#c*'S  
int i, j, k; =RCfibT!C  
int mid = (l + r) / 2; ; /6:lL  
if (l == r) *~\;&G29Y  
return; @LwVmR |{  
if ((mid - l) >= THRESHOLD) b;&Yw-\nZ;  
mergeSort(data, temp, l, mid); `Gy>tD.#V-  
else XnNOj>!  
insertSort(data, l, mid - l + 1); 7LyV`6{70  
if ((r - mid) > THRESHOLD) cOj +}Hz58  
mergeSort(data, temp, mid + 1, r); V^/h;/! ^  
else 0C4*F  
insertSort(data, mid + 1, r - mid); IdN%f]=/  
":(Cpf0  
for (i = l; i <= mid; i++) { UcKWa>:Fi  
temp = data; ^^j|0qshL  
} Zp% ""  
for (j = 1; j <= r - mid; j++) { zD#+[XI]K  
temp[r - j + 1] = data[j + mid]; Q!BkS=H30K  
} Q@3ld6y  
int a = temp[l]; AOvH&9**  
int b = temp[r]; Z.cG`Km*  
for (i = l, j = r, k = l; k <= r; k++) { 3!ajvSOI9j  
if (a < b) { bOnukbJ  
data[k] = temp[i++]; j,gM+4V^  
a = temp; 7+A-7ci  
} else { .q'FSEkMJ  
data[k] = temp[j--]; h:US]ZC^Z  
b = temp[j];  K2vPj|  
} !'6J;Fb#  
} 1*eWvYo1  
} A-@-?AR  
Hsux>+Q  
/** %Pt[3>  
* @param data unbcz{&Hb[  
* @param l K7d1(.  
* @param i HeAc(_=C  
*/ `siy!R  
private void insertSort(int[] data, int start, int len) { $)i"[  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); :#"OCXr  
} U 8 .0L  
} e-T9HM&%P  
} * (XgUJ q+  
} c+\Gd}IJq  
QKL]O*  
堆排序: QtO[g  
M\$<g  
package org.rut.util.algorithm.support; }!J/ 9WKgU  
|~T+f&   
import org.rut.util.algorithm.SortUtil; w-q=.RSTn=  
aV92.Z_Ku  
/** 'E4(!H,k  
* @author treeroot \ [hrG?A  
* @since 2006-2-2 #f jX|b  
* @version 1.0 F0o18k_"  
*/ Ov{B-zCA  
public class HeapSort implements SortUtil.Sort{ J3!k*"P  
f|HgLFx  
/* (non-Javadoc) 8mQd*GGu1  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) mSvTnd8  
*/ EZu  
public void sort(int[] data) { ::Ve,-0  
MaxHeap h=new MaxHeap(); n$\6}\k  
h.init(data); KcMzZ!d7m  
for(int i=0;i h.remove(); Lh5+fk~i~8  
System.arraycopy(h.queue,1,data,0,data.length); l<+,(E=  
} BfO}4  
:Q%yW%St$  
private static class MaxHeap{ )="g?E3  
gs2&0rnOy\  
void init(int[] data){ &`9bGO  
this.queue=new int[data.length+1]; C J}4V!;|  
for(int i=0;i queue[++size]=data; =*O9)$b  
fixUp(size); O'?lW~CD.>  
} M3xi 0/.  
} )-6[ Bw  
wE=8jl*  
private int size=0; NIcNL(]  
3ks|  
private int[] queue; rBL_]\$7}  
hrtN.4p[  
public int get() { I[YfF  
return queue[1]; )-7(Hv1  
} ?(XX  
DyV[+P  
public void remove() { (j\UoKLRt  
SortUtil.swap(queue,1,size--); TTjjyZ@  
fixDown(1); )}k`X<~k  
} >?Y3WPB<F  
file://fixdown !-Tmu  
private void fixDown(int k) { dIe 6:s  
int j; WW Kr & )  
while ((j = k << 1) <= size) { "Mu $3 w  
if (j < size %26amp;%26amp; queue[j] j++; .cn w?EI  
if (queue[k]>queue[j]) file://不用交换 E"vi+'(v  
break; CX@HG)l  
SortUtil.swap(queue,j,k); m_Y}>  
k = j; ckkM)|kK  
} p RfHbPV?  
} Wn)A/Z ^r  
private void fixUp(int k) { .m % x-i  
while (k > 1) { 7 5cr!+  
int j = k >> 1; PfMOc+ q  
if (queue[j]>queue[k]) pLFL6\{g  
break; @;-Un/'C;7  
SortUtil.swap(queue,j,k); b+fy&rk@-  
k = j; S}oF7;'Ga  
} r_2VExk  
} ~ 8qFM  
7.=s1~p  
} a~+WL  
z K]%qv]  
} +vY`?k`  
jYssz4)tp  
SortUtil: QrRCsy70  
(inwKRH  
package org.rut.util.algorithm; v6(l#,  
gl4 f9Ff  
import org.rut.util.algorithm.support.BubbleSort; )e$-B]>7z  
import org.rut.util.algorithm.support.HeapSort; `rFGSq$9  
import org.rut.util.algorithm.support.ImprovedMergeSort; bqLYF[#T  
import org.rut.util.algorithm.support.ImprovedQuickSort; qQ\hUii  
import org.rut.util.algorithm.support.InsertSort; }z%/6`7)|  
import org.rut.util.algorithm.support.MergeSort; TEy.zzt  
import org.rut.util.algorithm.support.QuickSort; hQrsZv:Q  
import org.rut.util.algorithm.support.SelectionSort; ]0nC;|]@Lx  
import org.rut.util.algorithm.support.ShellSort; H5rNLfw '  
+R jD\6bJb  
/** h3 ZL0Fi*  
* @author treeroot G?X,Y\Lp  
* @since 2006-2-2 [}Yci:P_ +  
* @version 1.0 5Ddyb%  
*/ `Y9}5p  
public class SortUtil { Y@xeyMzE  
public final static int INSERT = 1; )qQg n]  
public final static int BUBBLE = 2; 1+[|pXT}  
public final static int SELECTION = 3; d3hTz@JY  
public final static int SHELL = 4; BwA~*5TFu  
public final static int QUICK = 5; <i @jD  
public final static int IMPROVED_QUICK = 6; \%Ih 6  
public final static int MERGE = 7; [IX!3I[J]  
public final static int IMPROVED_MERGE = 8; {ca^yHgGy  
public final static int HEAP = 9; o".O#^3H%  
9S`b7U=P  
public static void sort(int[] data) { x6mq['_  
sort(data, IMPROVED_QUICK); |UiykQ  
} z+`)|c4-  
private static String[] name={ [\y>&"uk  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" Cl){sP=8W  
}; Yl3PZ*#@ Q  
`SpS?mWA  
private static Sort[] impl=new Sort[]{ 'wHkE/ 83  
new InsertSort(), {}2p1-(  
new BubbleSort(), gG?*Fi  
new SelectionSort(), G(,~{N||  
new ShellSort(), lAt1Mq} ?P  
new QuickSort(), Ny<G2! W  
new ImprovedQuickSort(), H%jIjf  
new MergeSort(), 4E94W,1%,Y  
new ImprovedMergeSort(), LPgI"6cP  
new HeapSort() .EELR]`y7I  
}; |xC TX  
X64I~*  
public static String toString(int algorithm){ Rs`Y'_B  
return name[algorithm-1]; [~0q )  
} f*@:{2I.v  
Z1}zf( JU  
public static void sort(int[] data, int algorithm) { ooxzM `  
impl[algorithm-1].sort(data); _^A NJ7  
} _Pm}]Y:_  
F#R\Ot,hv  
public static interface Sort {  K8we*  
public void sort(int[] data); soCHwiE  
} =5#Jsn?U  
 ~&jCz4M  
public static void swap(int[] data, int i, int j) { fXQRsL8 ]  
int temp = data; "C|l3X'  
data = data[j]; G+p>39P   
data[j] = temp; nWsz0v3'9  
} s$G8`$+i1  
} OlFn<:V K  
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