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
  • 5276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。 9 &p;2/H  
插入排序: T_1p1Sg  
gg}^@h&?  
package org.rut.util.algorithm.support; Z5%TpAu[  
r(uf yC&  
import org.rut.util.algorithm.SortUtil; e lzKtVw  
/** 2-!n+#Cdf  
* @author treeroot 2B=''W  
* @since 2006-2-2 <rAk"R^  
* @version 1.0 jFThW N  
*/ ]53'\TH  
public class InsertSort implements SortUtil.Sort{ 5|Or,8r(C  
g7),si*  
/* (non-Javadoc) _mSQ>BBRl  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) # 5C)k5  
*/ I'%(f@u~  
public void sort(int[] data) { D"RxI)"HP  
int temp; ~A =?_5kJ  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 5xF R7%_&  
} 'YUx&F cM  
} `.8#q^  
} k9iXVYQ.;r  
*N|s+  
} y/}ENUGR  
{pof=G  
冒泡排序: Y^P'slY{%  
b/g"ws_  
package org.rut.util.algorithm.support; ]p sx\ZMa  
e:H9!  
import org.rut.util.algorithm.SortUtil; UZq1qn@+  
jQ[M4)>_k`  
/** Vn1hr;i]  
* @author treeroot ^S'tMT_  
* @since 2006-2-2 ,) JSX o  
* @version 1.0 zu-1|X X  
*/ ]\_T  
public class BubbleSort implements SortUtil.Sort{ K9+C3"*I  
, BCo/j  
/* (non-Javadoc) /n|`a1!  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) F9&ae*>,  
*/ Md4JaFA(  
public void sort(int[] data) { '5n67Hl 1  
int temp; (xhwl=MX)  
for(int i=0;i for(int j=data.length-1;j>i;j--){ :$"L;"  
if(data[j] SortUtil.swap(data,j,j-1); dfoFs&CSKh  
} Q4JvFy0'  
} :n?K[f?LfY  
} =P.m5e<  
} {Z=m5Dy}  
r$Z_Kwe.|&  
} _^)<d$R<  
cjel6 nj  
选择排序: / NlT[@T  
aj:B+}1  
package org.rut.util.algorithm.support; "RF<i3{S  
j7M[]/|  
import org.rut.util.algorithm.SortUtil; &]?X"K  
O7A W9*<  
/** P95A _(T=[  
* @author treeroot [Nn ?:5"  
* @since 2006-2-2 @Ja8~5:  
* @version 1.0 ?]# U~M<'  
*/ Aj;F$(su  
public class SelectionSort implements SortUtil.Sort { G`HL^/Z*  
bqt*d)$  
/* tsA+B&R_]  
* (non-Javadoc) & M wvj  
* :z!N_]t  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) - ^sbf.  
*/ 9(/ ;Wutj"  
public void sort(int[] data) { M9/c8zZ  
int temp; YIQm;E EG  
for (int i = 0; i < data.length; i++) { Vp'Zm:  
int lowIndex = i; :2KLziO2  
for (int j = data.length - 1; j > i; j--) { UA|A>c  
if (data[j] < data[lowIndex]) { x1}7c9n K  
lowIndex = j; ?(^HjRUY  
} j5EZJ`  
} _IOt(Zb(  
SortUtil.swap(data,i,lowIndex); lc71Pp>  
} v3i]z9`  
} E.kjYIH8  
<?UIux  
} KnC;j-j  
/@<Pn&Rq  
Shell排序: z3  lZ3  
L]goHs  
package org.rut.util.algorithm.support; Qw ukhD7  
&O'6va  
import org.rut.util.algorithm.SortUtil; gqje]Zc<  
lKMOsr@l  
/** ;: a>#{N  
* @author treeroot @k!J}O K  
* @since 2006-2-2 DJ)z~W2I*  
* @version 1.0 R N1q/H|  
*/ +%'S>g0W=  
public class ShellSort implements SortUtil.Sort{ cVt MCgx  
VV*Z5U@b  
/* (non-Javadoc) }jQxwi)  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "i\rhX  
*/ 1N_Gk&  
public void sort(int[] data) { R7o3X,-iwn  
for(int i=data.length/2;i>2;i/=2){ nl)!)t=n  
for(int j=0;j insertSort(data,j,i); XA~Cc<v  
} n4cM /unU  
} vap,)kILF  
insertSort(data,0,1); MqBA?7  
} J2$L[d^  
+P?!yH,n  
/** zqDIwfW  
* @param data gNdEPaaFI  
* @param j )x/Spb  
* @param i UJXRL   
*/ UN <s1  
private void insertSort(int[] data, int start, int inc) { =rA"|=  
int temp; G6C#M-S  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); @O/Jy2>3H  
} 5U&b")3IT!  
} oh k.;  
} i(^&ZmG  
kCXQHX  
} I+,~pmn:  
v`"z  
快速排序: S`oADy  
=l_B58wrx  
package org.rut.util.algorithm.support; )uvs%hK  
[*<F   
import org.rut.util.algorithm.SortUtil; _;G. QwHr  
uES|jU{]b  
/** *OOi  
* @author treeroot u%J04vG"D  
* @since 2006-2-2 |g vx^)ro  
* @version 1.0 8E:8iNbF  
*/ wN"j:G(  
public class QuickSort implements SortUtil.Sort{ G x;U 3iV  
QxRT%;'Zh]  
/* (non-Javadoc) \Kp!G1?_AY  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :}\w2W E[  
*/ >hkmL](^  
public void sort(int[] data) { ~s@PP'!  
quickSort(data,0,data.length-1);  -a``  
} "<3F[[;~  
private void quickSort(int[] data,int i,int j){ 6>rgoT)6~  
int pivotIndex=(i+j)/2; mRe BS  
file://swap si:p98[w  
SortUtil.swap(data,pivotIndex,j); UEZnd8  
[?3]+xr :  
int k=partition(data,i-1,j,data[j]); uD=i-IHT  
SortUtil.swap(data,k,j); tC0:w,C)  
if((k-i)>1) quickSort(data,i,k-1); p^|IN'lx,  
if((j-k)>1) quickSort(data,k+1,j); ]Ek6EuaK  
kdVc;v/5  
} Zl5cHejM  
/**  F?UI8  
* @param data Arg604V3  
* @param i ~)\9f 1O{^  
* @param j zn| S3c  
* @return gnjh=anVX1  
*/ q\2q3}n  
private int partition(int[] data, int l, int r,int pivot) { dW K; h  
do{ 00Tm]mMQX  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); >WfkWUb  
SortUtil.swap(data,l,r); OAoTsqj6  
} f)`_su U  
while(l SortUtil.swap(data,l,r); \LYB% K}  
return l; 4e6x1`Y{xB  
} C-i9F%..  
KxyD{W1  
} oy8L{8?  
C|#GODA  
改进后的快速排序: 42*y27Dtm  
:ud<"I]:  
package org.rut.util.algorithm.support; f{ ;L"*L  
,$"*X-1  
import org.rut.util.algorithm.SortUtil; =Q\z*.5j.  
xLxXc!{J5  
/** =L,s6J8_'  
* @author treeroot i2. +E&3v  
* @since 2006-2-2 %gK@ R3p  
* @version 1.0 c1!0Z28  
*/ }I3 ZNd   
public class ImprovedQuickSort implements SortUtil.Sort { 0 rM'VgB  
;WydXQ}Q^  
private static int MAX_STACK_SIZE=4096; eIZ7uSl  
private static int THRESHOLD=10; yQAW\0`  
/* (non-Javadoc) p:*)rE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) v:2*<;  
*/ D hN{Y8'~  
public void sort(int[] data) { s(~tL-_ K  
int[] stack=new int[MAX_STACK_SIZE]; xF:}a:c@H  
=ttvC"4?  
int top=-1; G~z=,72  
int pivot; C[E[|s*l  
int pivotIndex,l,r; 6j*L]S c  
8>U{>]WG  
stack[++top]=0; g+g0iS  
stack[++top]=data.length-1; v[k;R  
ZGILV  
while(top>0){ UH8q:jOi  
int j=stack[top--]; S511}KPbm/  
int i=stack[top--]; pD^7ZE6  
WJ%4IaT  
pivotIndex=(i+j)/2; Sn6cwf9.s  
pivot=data[pivotIndex]; DC9\Sp?  
 fP+RuZ  
SortUtil.swap(data,pivotIndex,j); 4b\R@Knu  
d@sAB1:  
file://partition ]2:w?+T  
l=i-1; UweXz.x7  
r=j; (d9G`  
do{ 54X=58Q  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); '?j[hhfB-  
SortUtil.swap(data,l,r); ;k W+  
} :6}Zo  
while(l SortUtil.swap(data,l,r); Q9Tt3h2ga  
SortUtil.swap(data,l,j); = aO1uC|6C  
kGz0`8U Ru  
if((l-i)>THRESHOLD){ s5`CV$bz  
stack[++top]=i; !hMD>B2Z  
stack[++top]=l-1; prIPPeMdz  
} a ~  
if((j-l)>THRESHOLD){ !?AgAsSmc  
stack[++top]=l+1; V-1H(wRu  
stack[++top]=j; 5|nT5oS  
} n(}cK@  
bD2):U*Fzo  
} &ikPa,A  
file://new InsertSort().sort(data); e8Ul^]  
insertSort(data); U z*7J  
} 0|Rt[qwKb@  
/** EgE% NY~  
* @param data I{/}pr>  
*/ 3np |\i  
private void insertSort(int[] data) { _Wb3,E a=  
int temp; 5L?_AUL  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); `\p5!Iq Q  
} c @U\d<{w  
} W"{:|'/v  
} i1c z+}  
!iNN6-v%  
} @IXvp3r  
"dkDT7  
归并排序: ;7:_:o[.  
!~j-5+DI  
package org.rut.util.algorithm.support; \GF 9;N}V  
E Pd9'9S  
import org.rut.util.algorithm.SortUtil; )ajF ca@v  
s%bm1$}  
/** k<Y}BvAYB  
* @author treeroot E;o "^[we  
* @since 2006-2-2 K/flg|uZ/V  
* @version 1.0 hL?"!  
*/ q PveG1+25  
public class MergeSort implements SortUtil.Sort{  ~ERA  
&06pUp iS  
/* (non-Javadoc) r_"=DLx6  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) bMA\_?  
*/ U } K]W>Z  
public void sort(int[] data) { G?,b51"  
int[] temp=new int[data.length]; kd=|Iip;(  
mergeSort(data,temp,0,data.length-1); RJ+["[k  
} za,JCI  
Md*~hb8J  
private void mergeSort(int[] data,int[] temp,int l,int r){ /bSAVSKR  
int mid=(l+r)/2; iB XS   
if(l==r) return ; a_T3<  
mergeSort(data,temp,l,mid); 6f'THU$  
mergeSort(data,temp,mid+1,r); 9K:ICXm  
for(int i=l;i<=r;i++){ ^~7/hm:  
temp=data; j^T i6F>f  
} _{C =d3  
int i1=l; Pb] EpyAW  
int i2=mid+1; {qJ(55  
for(int cur=l;cur<=r;cur++){ x:? EL)(  
if(i1==mid+1) 3oQ?VP  
data[cur]=temp[i2++]; NMvNw?]  
else if(i2>r) /8O;Q~a  
data[cur]=temp[i1++]; UhX)?'J  
else if(temp[i1] data[cur]=temp[i1++]; ]aZ3_<b  
else %wQE lkB  
data[cur]=temp[i2++]; qS!U1R?s  
} PAy/"R9DT-  
} Dk^T_7{  
 WJ&a9]&C  
} gucgNpX  
%E"dha JY  
改进后的归并排序: PR2;+i3  
)JXlPU  
package org.rut.util.algorithm.support; c}G\F$  
PNp-/1Cx  
import org.rut.util.algorithm.SortUtil; VkD}gJY  
/J5)_> R:  
/** ]kir@NMv>  
* @author treeroot >Tp`Kri  
* @since 2006-2-2 Zsto8wuf#  
* @version 1.0 DedY(JOvB  
*/ 0% zy 6{  
public class ImprovedMergeSort implements SortUtil.Sort { 9=}&evGm89  
/=@V5)  
private static final int THRESHOLD = 10; |44 E:pA  
A|`mIma#  
/* 6 =H]p1p~O  
* (non-Javadoc) L;i(@tp|v  
* s= bP@[Gj  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :\"V5  
*/ MC~<jJ,  
public void sort(int[] data) { \"| 7o8  
int[] temp=new int[data.length]; ~vscATQ  
mergeSort(data,temp,0,data.length-1); {%BPP{OFk  
} 3Hi[Y[O`%P  
9YvK<i&I  
private void mergeSort(int[] data, int[] temp, int l, int r) { <i ";5+  
int i, j, k; 7?p>v34A  
int mid = (l + r) / 2; DmiZ"A  
if (l == r) =`OnFdI  
return; Fql|0Fq  
if ((mid - l) >= THRESHOLD) l_i&8*=Px  
mergeSort(data, temp, l, mid); J,D^fVIw  
else QIC? `hk1  
insertSort(data, l, mid - l + 1); fA"9eUu  
if ((r - mid) > THRESHOLD) ^u+#x2$Mg  
mergeSort(data, temp, mid + 1, r); ~[Z,:=z  
else mO0}Go8  
insertSort(data, mid + 1, r - mid); .YlhK=d4  
 _W  
for (i = l; i <= mid; i++) { $g!iy'4n*  
temp = data; {:TOm0eK  
} 7srq~;j3  
for (j = 1; j <= r - mid; j++) { 560`R>  
temp[r - j + 1] = data[j + mid]; bWg!/K55  
} R*l3 zn>  
int a = temp[l]; dfMi]rs!<  
int b = temp[r]; Lk]W?  
for (i = l, j = r, k = l; k <= r; k++) { 6FFM-9*|[  
if (a < b) { ftaa~h*  
data[k] = temp[i++]; )?<V-,D  
a = temp; FyWrb+_0v  
} else { 9P&{Xhs7  
data[k] = temp[j--]; &l~9FE *  
b = temp[j]; ;$g?W"  
} 7_~_$I~g*  
} )ml#2XP!f  
} T_ga?G<  
>Q2kXwN  
/** Wg=qlux-  
* @param data a49t/  
* @param l  ay,"MJ2  
* @param i F13vc~$Ky  
*/ C#@-uo2  
private void insertSort(int[] data, int start, int len) { o]aMhSol  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); jGEmf<q&u  
} |F49<7XB[~  
} fS]Z`U"  
} l9naqb:iP  
} M:t"is  
er.;qV'Wz6  
堆排序: Q#lFt,.y  
Huc|HL#C  
package org.rut.util.algorithm.support; Vx%!j&  
D77s3AyHK  
import org.rut.util.algorithm.SortUtil; "eIE5h  
SedVp cb+  
/** +R',$YzD  
* @author treeroot v9 8s78  
* @since 2006-2-2 F./P,hhN9  
* @version 1.0 "h:#'y$V  
*/ 59H~qE1Md  
public class HeapSort implements SortUtil.Sort{ &F.L*M  
oA+'9/UY  
/* (non-Javadoc) ut^6UdJ+`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) scPvuHzl  
*/ &sooXKlv|  
public void sort(int[] data) { 0QY9vuhL<  
MaxHeap h=new MaxHeap(); Ga\kvMtr  
h.init(data); XblZlWP#  
for(int i=0;i h.remove(); &#;lmYyaui  
System.arraycopy(h.queue,1,data,0,data.length); wPvYnhr|G-  
} `S|T&|ad0  
.>NPgd I  
private static class MaxHeap{ {yM@3v~  
T~~K~a \8  
void init(int[] data){ lz4M)pL^  
this.queue=new int[data.length+1]; cd;~60@K  
for(int i=0;i queue[++size]=data; LJOJ2x  
fixUp(size); fv:&?gc  
} h]WW?.   
} ,p V3O`z  
I^m9(L4%  
private int size=0; <f;X s(  
|N0RBa4%  
private int[] queue; {2LG$x-N%  
[bjP-pX  
public int get() { aPin6L$;)  
return queue[1]; MPMAFs  
} %:8XZf  
K1t>5zm  
public void remove() { V U~r~  
SortUtil.swap(queue,1,size--); COcS w  
fixDown(1); QG 1vP.K  
} g2 tM!IRQ  
file://fixdown ;FnS=Z  
private void fixDown(int k) { OE2r2ad  
int j; )D" 2Q:  
while ((j = k << 1) <= size) { v[~Q   
if (j < size %26amp;%26amp; queue[j] j++; ?I7%ueFY  
if (queue[k]>queue[j]) file://不用交换 B<jVo%og  
break; r[P+F  
SortUtil.swap(queue,j,k); }LryRcrD-n  
k = j; 2U) 0k *  
} R(IYb%L  
} [s F/sa 3  
private void fixUp(int k) { @O8X )  
while (k > 1) { V eLGxc  
int j = k >> 1; iZ9ed ]mf  
if (queue[j]>queue[k]) ]JlM/  
break; ddEV@2F  
SortUtil.swap(queue,j,k); hs<OzM  
k = j; 0F<$Zbe2B  
} Dyh|F\T  
} uHPd!# ]  
u2cDSRrqT  
} I[P_j`aE  
$ZRvvm!f  
} V L;<+C~  
%18%T{|$e  
SortUtil: Z<`:xFy(  
cQq78Lo  
package org.rut.util.algorithm; }r|$\ms  
qsdgG1<  
import org.rut.util.algorithm.support.BubbleSort; a7"Aq:IjU  
import org.rut.util.algorithm.support.HeapSort; bf6:J `5Z  
import org.rut.util.algorithm.support.ImprovedMergeSort; ?L6pB]l8b  
import org.rut.util.algorithm.support.ImprovedQuickSort; < mp_[-c  
import org.rut.util.algorithm.support.InsertSort; v8>bR|n5  
import org.rut.util.algorithm.support.MergeSort; AL*M`m_  
import org.rut.util.algorithm.support.QuickSort; u_6x{",5I  
import org.rut.util.algorithm.support.SelectionSort; t>eeOWk3  
import org.rut.util.algorithm.support.ShellSort; Zo@  
N]&:xd5  
/** `{xKU8j^  
* @author treeroot j>Cp4  
* @since 2006-2-2 N ZZc[P  
* @version 1.0 !mK}Rim~  
*/ y0,>_MS  
public class SortUtil { MbXtmQ%C8  
public final static int INSERT = 1; sZ#U{LI  
public final static int BUBBLE = 2; Dq`$3ZeA  
public final static int SELECTION = 3; y':65NMda  
public final static int SHELL = 4; B[fbPrM  
public final static int QUICK = 5; , nW)A/?}  
public final static int IMPROVED_QUICK = 6; w-LaSJ(T  
public final static int MERGE = 7; CM;B{*En  
public final static int IMPROVED_MERGE = 8; ) h=[7}|  
public final static int HEAP = 9; iIc/%< ;  
%nyZ=&u  
public static void sort(int[] data) { u|75r%p>  
sort(data, IMPROVED_QUICK); t"X^|!hKIF  
} 0}WDB_L  
private static String[] name={ 7|(o=+Bt  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" fzzk#jU  
}; 13f 'zx(AO  
h/..cVD,K  
private static Sort[] impl=new Sort[]{ X;CRy,  
new InsertSort(), 9)D9'/{L#  
new BubbleSort(), n= FOB0=  
new SelectionSort(), L+_ JKc  
new ShellSort(), O T .bXr~  
new QuickSort(), Dmr3r[  
new ImprovedQuickSort(), '?d5L+9  
new MergeSort(), H Yw7*  
new ImprovedMergeSort(), t_ id/  
new HeapSort() d?N[bA  
}; MC%!>,tC  
3Hf_!C=g  
public static String toString(int algorithm){ HEF\TH9  
return name[algorithm-1]; !%/(a)B$^$  
} mLDuizWI  
+f'@  
public static void sort(int[] data, int algorithm) { ebhV;Q.  
impl[algorithm-1].sort(data); -AwkP  
} ~{ l @  
s,H }km  
public static interface Sort { *z)+'D*+  
public void sort(int[] data); R6\|:mI,$  
} rA A?{(!9x  
X- `PF  
public static void swap(int[] data, int i, int j) { +7r?vo1  
int temp = data; DtkOb,wY  
data = data[j]; pI( H7 (  
data[j] = temp; - @tL]]  
} ;OSEMgB1  
} TbgIr  
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
如果您在写长篇帖子又不马上发表,建议存为草稿
认证码:
验证问题:
10+5=?,请输入中文答案:十五