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
  • 7693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。 e{?~ m6  
插入排序: k@wxN!w;  
7%?A0%>6G  
package org.rut.util.algorithm.support; Q}m)Q('Rk  
+ 1cK (Si  
import org.rut.util.algorithm.SortUtil; :ox+WY  
/** N}^\$sVu_  
* @author treeroot G,$jU9 f  
* @since 2006-2-2 4K4?Q+?  
* @version 1.0 2pB@qi-]  
*/ g.,IQ4o  
public class InsertSort implements SortUtil.Sort{ -ff*,b$Q/  
#PFf`7b,z  
/* (non-Javadoc) U`:$1*(`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \6sp"KqP  
*/ eR;cl$  
public void sort(int[] data) { RE*SdazY?  
int temp; #^eviF8  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Dpof~o,f  
} T"dEa-O  
} paiF ah  
} ,c7 8O8|  
rt."P20T  
} Z!ub`coV[  
0h#' 3z<  
冒泡排序: Gh@QR`xxc  
c"fnTJXr79  
package org.rut.util.algorithm.support; >-]Y%O;}  
n32BHOVE  
import org.rut.util.algorithm.SortUtil; 0A|.ch  
f4:g D*YT  
/** /tV)8pEj  
* @author treeroot PCD1I98  
* @since 2006-2-2 Pirc49c  
* @version 1.0 fpzC#  
*/ b~cN#w #  
public class BubbleSort implements SortUtil.Sort{  @4H*kA  
WzZb-F  
/* (non-Javadoc) Z.rKV}yjY  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3VKArv-  
*/ `F(KM '  
public void sort(int[] data) { ^ b}_[B  
int temp; qL3*H\9N  
for(int i=0;i for(int j=data.length-1;j>i;j--){ qf+I2 kyS  
if(data[j] SortUtil.swap(data,j,j-1); ` 8.d  
} H{9di\xnEm  
} ^TnBtIU-B  
} p"Fj6T2  
} LL.YkYu  
q(_pk&/  
} 4WDh8U  
nV GrW#'E  
选择排序: 3C2L _ K3  
RV7l=G9tq  
package org.rut.util.algorithm.support; j@Z4(X L  
$\{@wL  
import org.rut.util.algorithm.SortUtil; bf::bV?T  
$c[8-=  
/** K^w(WE;db  
* @author treeroot YW0UIO  
* @since 2006-2-2 :X/j%m*  
* @version 1.0 nIKh<ws4z  
*/ ,%yjEO  
public class SelectionSort implements SortUtil.Sort { vA:1z$m  
X8p-VCkV  
/* De\&r~bTW9  
* (non-Javadoc) Ll%[}C?~]?  
* 0I& !a$:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {_l@ws  
*/ Bo_Ivhe[m  
public void sort(int[] data) { 9>\s81^  
int temp; b=`h""u  
for (int i = 0; i < data.length; i++) { ~[isR|>  
int lowIndex = i; 05.^MU?^U  
for (int j = data.length - 1; j > i; j--) { TU7Qt<  
if (data[j] < data[lowIndex]) { LEWeybT  
lowIndex = j; 8`kK)iCq  
} CR&v z3\Q  
} -dZ7;n5&_  
SortUtil.swap(data,i,lowIndex); 0vt?yD  
} R/xeC [r  
} %fo+Y+t  
U,~\}$<I  
} !z$.Jcr1  
Y6 &w0~?!  
Shell排序: oaM $<  
-6(C ^X%  
package org.rut.util.algorithm.support; W{Ine> a'  
DHd9yP9-  
import org.rut.util.algorithm.SortUtil; C /\)-^  
iE!\)7y  
/** z*"zXL C  
* @author treeroot L "P$LEk  
* @since 2006-2-2 V*2uW2\}  
* @version 1.0 .B+R+2uY3  
*/ n0:'h}^  
public class ShellSort implements SortUtil.Sort{ D({% FQ"  
LaG./+IP  
/* (non-Javadoc) K}L-$B*i  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) yL7D;<!S&  
*/ 'C)`j{CS  
public void sort(int[] data) { DKx8<yEky  
for(int i=data.length/2;i>2;i/=2){ mw-0n  
for(int j=0;j insertSort(data,j,i); L#1Y R}m  
} FO&U{(Q  
} MuQyHEDF  
insertSort(data,0,1); yIC8Rl  
} K*xqQ]&  
g[!t@K  
/** 3&^4%S{/  
* @param data `lX |yy"  
* @param j AK]{^Hvz  
* @param i =* oFs|v  
*/ ;Kob]b  
private void insertSort(int[] data, int start, int inc) { S!j=hj@qW  
int temp; ^1sX22k  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); nlOM4fJ(  
} ]h3<r8D_#  
} 71_{FL8  
} /g BB  
3(0k!o0 "  
} $T.we+u  
) jv]Oz  
快速排序: mtu/kd'(  
7=(r k  
package org.rut.util.algorithm.support; $O9Nprf  
$w4%JBZr  
import org.rut.util.algorithm.SortUtil; KHV5V3q4  
QV,X> !Nz  
/** VJmX@zX9  
* @author treeroot bw\fKZ  
* @since 2006-2-2 veIR)i@dx  
* @version 1.0 {>PN}fk2QP  
*/ (L}  
public class QuickSort implements SortUtil.Sort{ K<TVp;N  
ErIAS6HS'  
/* (non-Javadoc) (ZH5/VKp  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  AV{3f`  
*/ 5G"LuA  
public void sort(int[] data) { sLrSi  
quickSort(data,0,data.length-1); 4+2XPaI m  
} A(zF[\{]  
private void quickSort(int[] data,int i,int j){ ?0 93'lA  
int pivotIndex=(i+j)/2; ~b;l08 <  
file://swap d*Q:[RUf,  
SortUtil.swap(data,pivotIndex,j); .@KpN*`KH  
v'gP,UO-%D  
int k=partition(data,i-1,j,data[j]); /J!C2  
SortUtil.swap(data,k,j); XHU&ix{Od  
if((k-i)>1) quickSort(data,i,k-1); db#QA#^S  
if((j-k)>1) quickSort(data,k+1,j); y"q7Gx*^j  
Elth xj  
} WwG +Xa  
/** pie<jZt  
* @param data f0H 5 )DJf  
* @param i k.=67L  
* @param j wgfy; #  
* @return >`L)E,=/  
*/ lCT N dW+=  
private int partition(int[] data, int l, int r,int pivot) { ;]YQ WK  
do{ NJK?5{H'  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); mw0#Dhyy1=  
SortUtil.swap(data,l,r); Q-;ltJ  
} nn>< k"  
while(l SortUtil.swap(data,l,r); (}E-+:vFU  
return l; %SORs(4  
} G tI]6t  
{.F``2  
} ER,,K._?B  
iC- ?F cA  
改进后的快速排序: 18JhC*in  
Y^5X>  
package org.rut.util.algorithm.support; <K4`GT"n  
4 4%jz-m  
import org.rut.util.algorithm.SortUtil; ]}z;!D>  
uV1H iv-  
/** XgY( Vv  
* @author treeroot s)Sa KE*d  
* @since 2006-2-2 63:0Vt>hZ^  
* @version 1.0 #k? Rl  
*/ JHpoW}7QB  
public class ImprovedQuickSort implements SortUtil.Sort { aIaydu+\  
N{Og; roGD  
private static int MAX_STACK_SIZE=4096; A6w/X`([O  
private static int THRESHOLD=10; Ht^MY  
/* (non-Javadoc) %-"?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <()xO(  
*/ 3$f%{~3  
public void sort(int[] data) { VuTH"br6  
int[] stack=new int[MAX_STACK_SIZE]; ( 8+_~_  
xo{f"8}^  
int top=-1; dIv/.x/V  
int pivot; i[FcY2  
int pivotIndex,l,r; %8iA0t+  
pNpj, H*4  
stack[++top]=0; 9_IR%bm  
stack[++top]=data.length-1; uYjJDLYoHl  
Yjz'lWg  
while(top>0){ 3}O.B r|  
int j=stack[top--]; )f#@`lf[<  
int i=stack[top--]; @(.?e<  
'R6D+Vk/  
pivotIndex=(i+j)/2; R`=IYnoOA  
pivot=data[pivotIndex]; lv9Ss-c4  
)CS 7>Vx  
SortUtil.swap(data,pivotIndex,j); |E @Gsw  
b!hxx Z  
file://partition g-xbb&]  
l=i-1; M%4o0k]E,s  
r=j; Y.rHl4  
do{ GV)#>PL  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); /b@0HL?  
SortUtil.swap(data,l,r); , 6\i  
} E*Vx^k$  
while(l SortUtil.swap(data,l,r); SqY;2:  
SortUtil.swap(data,l,j); S4<@ji  
RhyI\(Z2q  
if((l-i)>THRESHOLD){ 9B Lz  
stack[++top]=i; f ;|[  
stack[++top]=l-1; H^"BK-`hs  
} D+rDgrv  
if((j-l)>THRESHOLD){ 9.e?<u*-z  
stack[++top]=l+1; uR)itmc?  
stack[++top]=j; Q3%a=ba)h  
} _5M!ec  
mquna"}N  
} (d993~|h  
file://new InsertSort().sort(data); .^#{rk  
insertSort(data); @&+h3dV.V  
} -a3+C,I8g  
/** 8+a/x#b-  
* @param data H*|Bukgt/M  
*/ ,Z_nV+l_  
private void insertSort(int[] data) { .5L/<  
int temp; z1!ya#,$  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Tv3ZNh  
} L3q)j\ ls  
} @babgP,  
} < Q\`2{  
{z@vSQ=)=P  
} F)e*w:D  
avO+1<`4B  
归并排序: )2YU|  
Ms1\J2  
package org.rut.util.algorithm.support; !::k\}DS  
z('93vsO  
import org.rut.util.algorithm.SortUtil; o~P8=1t   
uNXh"?  
/** AG}' W  
* @author treeroot Z+t?ah00  
* @since 2006-2-2 N _pJE?  
* @version 1.0 @{I55EQ]  
*/ 2SG|]=  
public class MergeSort implements SortUtil.Sort{ +\Q6Onqr  
oE)c8rE  
/* (non-Javadoc) 8x,;B_Zu  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 'Iyk`=R  
*/ xDADJ>u2K  
public void sort(int[] data) { A9l^S|r  
int[] temp=new int[data.length]; Arp4$h  
mergeSort(data,temp,0,data.length-1); 3%EwA\V(  
} L$jyeFB5  
'2[ _U&e  
private void mergeSort(int[] data,int[] temp,int l,int r){ K&|zWpb  
int mid=(l+r)/2; T82=R@7  
if(l==r) return ; RB &s$6A  
mergeSort(data,temp,l,mid); bMSF-lQ  
mergeSort(data,temp,mid+1,r); /-|xxy  
for(int i=l;i<=r;i++){ %< j=&  
temp=data; bjT0Fi0-  
} (/*-M]>  
int i1=l; e:7aVOm  
int i2=mid+1; ae!_u \$  
for(int cur=l;cur<=r;cur++){ qA30z%#z_  
if(i1==mid+1)  W2^eE9  
data[cur]=temp[i2++]; R:ar85F  
else if(i2>r) V;:A&  
data[cur]=temp[i1++]; 0]HK (,/h  
else if(temp[i1] data[cur]=temp[i1++]; q0c)pxD%`  
else }+=@Ci  
data[cur]=temp[i2++]; {?L}qV  
} Q  o=  
} 4P:vo$Cy  
KPO((G0&  
} wK\SeX  
RgRcW5VxK  
改进后的归并排序: fV5#k@,")  
qob!!A14p  
package org.rut.util.algorithm.support; u8,T>VNVw  
pEaH^(I*  
import org.rut.util.algorithm.SortUtil; G: &Q)_  
92tb`'  
/** dl;A'/(t  
* @author treeroot  C3<3  
* @since 2006-2-2 jyT(LDsS  
* @version 1.0 PCIC*!{  
*/ eb8_guZ  
public class ImprovedMergeSort implements SortUtil.Sort { H{$yy)@F  
oDP|>yXC)  
private static final int THRESHOLD = 10; =VSieh  
:m~lgb<  
/* X>B/DT  
* (non-Javadoc) $fn^i.  
* l3MH+o  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pKJ[e@E^  
*/ "bO]  
public void sort(int[] data) { q_K1L  
int[] temp=new int[data.length]; Fca?'^X  
mergeSort(data,temp,0,data.length-1); c ~C W-%wN  
} * K7L5.  
d+w<y~\ q  
private void mergeSort(int[] data, int[] temp, int l, int r) { @kK=|(OB'  
int i, j, k; Z:OO|x  
int mid = (l + r) / 2; ~iSW^mi  
if (l == r) V cL  
return; Nl8Cctrf  
if ((mid - l) >= THRESHOLD) bpILiC  
mergeSort(data, temp, l, mid); 0CR;t`M@  
else iUKj:q:  
insertSort(data, l, mid - l + 1); %)e+w+  
if ((r - mid) > THRESHOLD)  \X`P W  
mergeSort(data, temp, mid + 1, r); !(~>-;A8  
else 7wnzef?)  
insertSort(data, mid + 1, r - mid); sDC RL%0QK  
:Ry 24X  
for (i = l; i <= mid; i++) { z~_\onC  
temp = data; !< )_ F  
} +OmSR*fA0  
for (j = 1; j <= r - mid; j++) { Y^G3<.B  
temp[r - j + 1] = data[j + mid]; 4ca-!pI0  
} buFtLPe  
int a = temp[l]; Y[DKj!v  
int b = temp[r]; KWUz]>Z  
for (i = l, j = r, k = l; k <= r; k++) { Ed-gYL^<  
if (a < b) { a8 1%M  
data[k] = temp[i++]; 6. jZy~  
a = temp; yM2&cMHH~  
} else { 5HN<*u%z  
data[k] = temp[j--]; 85 hYYB0v  
b = temp[j]; 7y\g~?5N  
} 8iNAs#s  
} z,)sS<t(  
} 6~S0t1/t?  
c v 9 6F  
/** w-$w  
* @param data = 1VH5pVr}  
* @param l D2p6&HNT  
* @param i j1 <1D@UO  
*/ ,LZ:y1z'V-  
private void insertSort(int[] data, int start, int len) { >B  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); ^j %UZ  
} E'8Bw7Tz  
} =@ZtUjcJx  
} ArYF\7P  
} 5KR|p Fq  
W<VHv"?V  
堆排序: zIFL?8!H9{  
H\mVK!](D  
package org.rut.util.algorithm.support; ;l()3;  
8 36m5/kH[  
import org.rut.util.algorithm.SortUtil; % eRwH >  
[r8 d+  
/** 17)M.(qmuP  
* @author treeroot hhAC@EGG  
* @since 2006-2-2 2H[a Y%1T  
* @version 1.0 ssITe., ny  
*/ QJWES%m`  
public class HeapSort implements SortUtil.Sort{ o(/ ia3  
3SDWR@x&  
/* (non-Javadoc) L0b] ^_ tI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +c`C9RXk  
*/ X&.$/xaT  
public void sort(int[] data) { PV6 *-[  
MaxHeap h=new MaxHeap(); [E (M(w':  
h.init(data); ~@b}=+n  
for(int i=0;i h.remove();  /kU@S  
System.arraycopy(h.queue,1,data,0,data.length); Az9J{)  
} $S8bp3)  
So%1RY{ )  
private static class MaxHeap{ }#>d2 =T$  
/%9p9$kFot  
void init(int[] data){ 8;\tP29  
this.queue=new int[data.length+1]; up3<=u{>  
for(int i=0;i queue[++size]=data; 8/?uU]#Q  
fixUp(size); -!G#")<  
} u6I0<i_KZ  
} X1[R*a/p  
;To+,`?E;q  
private int size=0; NvHy'  
vKf;&`^qE  
private int[] queue; #'Y6UGJ\n  
ZX6=D>)u  
public int get() { JvJ!\6Q@  
return queue[1]; OGi4m |  
} -_*XhD  
*5'6 E'  
public void remove() { 'A(-MTd%  
SortUtil.swap(queue,1,size--); 2a(yR >#  
fixDown(1); o p5^9`"  
}  ~uZLe\>K  
file://fixdown 2j/1@Z1j=  
private void fixDown(int k) { x*"pDI0k)  
int j; LOUKUReE  
while ((j = k << 1) <= size) { X`v79`g_  
if (j < size %26amp;%26amp; queue[j] j++; 2X;0z$  
if (queue[k]>queue[j]) file://不用交换 i~Ob( YIH  
break; iLd"tn'  
SortUtil.swap(queue,j,k); UNcJ=   
k = j; u3i| }`  
} '"fU2M<.  
} q{Ta?|x#  
private void fixUp(int k) { bb0McEQy  
while (k > 1) { J(&M<<%  
int j = k >> 1; (zro7gKked  
if (queue[j]>queue[k]) ])ALAAIc-  
break; `_g?y)  
SortUtil.swap(queue,j,k); CbH T #  
k = j; {{[jC"4AY  
} MV;Y?%>  
} 8&A|)ur4  
>7(~'#x8A"  
} zTBi{KrZ  
am'p^Z @  
} Zc\h15+P  
6=g]Y!o$  
SortUtil: #9hXZr/8  
5IE+M  
package org.rut.util.algorithm; zEPx  
EO 9kE.g  
import org.rut.util.algorithm.support.BubbleSort; o +QzQ+ Z  
import org.rut.util.algorithm.support.HeapSort; ~ut& U  
import org.rut.util.algorithm.support.ImprovedMergeSort; o )nT   
import org.rut.util.algorithm.support.ImprovedQuickSort; <E7Vbb9*  
import org.rut.util.algorithm.support.InsertSort; Va/@#=,q]  
import org.rut.util.algorithm.support.MergeSort; K'{W9~9Lq  
import org.rut.util.algorithm.support.QuickSort; 1nlE3Y?AV  
import org.rut.util.algorithm.support.SelectionSort; R!V5-0%  
import org.rut.util.algorithm.support.ShellSort; $YGIN7_Gg  
$kD`$L@U  
/** mb~=Xyk&  
* @author treeroot Xx y Bg!R  
* @since 2006-2-2 ofPF}  
* @version 1.0 y5AXL5  
*/ H6PXx  
public class SortUtil { 6Er0o{iI  
public final static int INSERT = 1; l`M5'r]l  
public final static int BUBBLE = 2; eA*Jfb  
public final static int SELECTION = 3; gM;)  
public final static int SHELL = 4; f?>-yMR|  
public final static int QUICK = 5; ]2xx+P#Y  
public final static int IMPROVED_QUICK = 6; _sf#J|kQ  
public final static int MERGE = 7; we H@S  
public final static int IMPROVED_MERGE = 8; z"s%#/#  
public final static int HEAP = 9; S4{Mu(^xT  
0,~6TV<K  
public static void sort(int[] data) { WK_y1(v>  
sort(data, IMPROVED_QUICK); /50g3?X,  
} _r<zSH%  
private static String[] name={ 7{K i;1B[w  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" b5n]Gp  
}; _']%qd"%  
/mMAwx  
private static Sort[] impl=new Sort[]{ ni"$[8U  
new InsertSort(), {#w A !>.  
new BubbleSort(), 22al  
new SelectionSort(), MR?*GI's  
new ShellSort(), ~_l6dDJ  
new QuickSort(), j5,^9'  
new ImprovedQuickSort(), n ,&/D  
new MergeSort(), wZo.ynXT  
new ImprovedMergeSort(), T<TcV9vM  
new HeapSort() x!"SD3r=4>  
}; !y qa?\v9  
~$&:NB1~q  
public static String toString(int algorithm){ '#,e @v  
return name[algorithm-1]; f.aB?\"f6  
} w'oo-.k  
`?zg3GD_  
public static void sort(int[] data, int algorithm) { X6LhM  
impl[algorithm-1].sort(data); gnQo1q{ 4  
} n) _dH/"  
Ge^zX$.'  
public static interface Sort { Ci7P%]9  
public void sort(int[] data); `2x H7a-  
} %1-K);S J  
sJ))<,e5I  
public static void swap(int[] data, int i, int j) { vU_d=T%$  
int temp = data; T3USNc51  
data = data[j]; W>5vRwx00  
data[j] = temp; :]CzN^k(1c  
} KGV.S  
} 8)^B32  
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