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
  • 7740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。 | nry^zb  
插入排序: UMhM8m!=o  
f+xGf6V  
package org.rut.util.algorithm.support; .E;6Xx_+r  
~ezCE4^&  
import org.rut.util.algorithm.SortUtil; }r^MXv~(  
/** u6r-{[W}  
* @author treeroot Qg 6m  
* @since 2006-2-2 W\~ZmA.  
* @version 1.0 iXl1S[.l  
*/ qWE"vI22M  
public class InsertSort implements SortUtil.Sort{ E=s`$ A  
P#ru-0DD  
/* (non-Javadoc) 't)j  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) SmR*b2U  
*/ ? !~au0  
public void sort(int[] data) { LiV]!*9$KG  
int temp; UO:>^,(j  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); g X(QRQ  
} H50nR$$<*Y  
} BMX x(W]  
} STOE=TC>  
_cGiuxf #  
} @XIwp2A{+  
r1?LKoJOn  
冒泡排序: n.1a1Tf  
! h4So4p  
package org.rut.util.algorithm.support; IBF>4q m"  
MPL2#YU/a  
import org.rut.util.algorithm.SortUtil; A(s/Nz>  
W}=2?vHV=  
/** I" j7  
* @author treeroot lJYv2EZ  
* @since 2006-2-2 +M.|D,wg2  
* @version 1.0 aPb!-o{  
*/ \Fj4Gy?MW  
public class BubbleSort implements SortUtil.Sort{ 1gm{.*G  
Ahwu'mgnC  
/* (non-Javadoc)  E;|\?>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) EhVnt#`Si  
*/ 92tb`'  
public void sort(int[] data) { <s{/ka3  
int temp; ome>Jbdhe  
for(int i=0;i for(int j=data.length-1;j>i;j--){ Sqge5v  
if(data[j] SortUtil.swap(data,j,j-1); VI+Y4T@  
} ^a}{u$<  
} ,`Mlo  
} 2 rBF<z7  
} 2'}2r ~6  
x p$0J<2  
} 34l=U?  
mcR!P~"i  
选择排序: kN) pi "  
V('b|gsEo  
package org.rut.util.algorithm.support; i)p__Is  
9"aTF,'F/  
import org.rut.util.algorithm.SortUtil; vaU7tJ:  
ujSzm=_P  
/** D"WkD j"M  
* @author treeroot U!`'Qw;  
* @since 2006-2-2 7xcYM  
* @version 1.0 tsa6: D  
*/ GkO6r'MVE  
public class SelectionSort implements SortUtil.Sort { wb?hfe  
EtcamI*`  
/* ^49moC-  
* (non-Javadoc) "LWp/  
* ;K_B,@:'  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2#[Y/p  
*/ oe<Y,%u"6  
public void sort(int[] data) { @rF\6I  
int temp; i0!F  
for (int i = 0; i < data.length; i++) { 2u:j6ic  
int lowIndex = i; )}aF=%  
for (int j = data.length - 1; j > i; j--) { ]aR4U`  
if (data[j] < data[lowIndex]) { ][mc^eI0s|  
lowIndex = j; :Ry 24X  
} r6)1Y`K=9  
} r]S9z  
SortUtil.swap(data,i,lowIndex); GwycSb1  
} ^/uGcz|.  
} Y^G3<.B  
}X?*o `sW  
} _7;^od=C  
525 >=h  
Shell排序: "10VN*)J}  
r?TK@^z  
package org.rut.util.algorithm.support; K_aN7?#.v`  
mI0r,Z*+M  
import org.rut.util.algorithm.SortUtil; 9|`@czw  
(D{}1sZBQ  
/** 5HN<*u%z  
* @author treeroot cn0Fz"d  
* @since 2006-2-2 75HL  
* @version 1.0 e2fct|'  
*/ o~K2K5I  
public class ShellSort implements SortUtil.Sort{ {Jc!T:vJ  
_XZ=4s  
/* (non-Javadoc) \_E.%K  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Wd AGZUp  
*/ pYG,5+g  
public void sort(int[] data) { "Zk6B"o)  
for(int i=data.length/2;i>2;i/=2){ j1 <1D@UO  
for(int j=0;j insertSort(data,j,i); )'~FDw\6  
} L'Zud,JKg  
} pxx(BE  
insertSort(data,0,1); Oy&'zigJ  
} 8tMte!E  
j%;)CV G"  
/** ;%<4U^2  
* @param data "~<~b2Y"5  
* @param j y7OG[L/  
* @param i zIFL?8!H9{  
*/ (Y)h+}n5N  
private void insertSort(int[] data, int start, int inc) { CE,O m^  
int temp; oDUMoX%4s  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 63S1ed [  
} c5e\ckqm^  
} 0)5Sx /5'  
} >EtP^Lu~f_  
h\d($Ki  
} b]BA,D 4  
Z!reX6  
快速排序: --`LP[ll  
9Oyi:2A  
package org.rut.util.algorithm.support; +3>/,w(x  
3gy;$}Lq T  
import org.rut.util.algorithm.SortUtil; %k #Nu  
%E"/]!}3  
/** !h>$bm  
* @author treeroot 8$UZL  
* @since 2006-2-2 0t?<6-3`/  
* @version 1.0 9Fx z!-9m  
*/ lMez!qx,=  
public class QuickSort implements SortUtil.Sort{ 43=-pyp  
Wmxw!   
/* (non-Javadoc) #0^3Wm`X;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >5Oy^u6Ly  
*/ [KI`e  
public void sort(int[] data) { -#;VFSz,9*  
quickSort(data,0,data.length-1); zl 0^EltiU  
} S\g7wXH  
private void quickSort(int[] data,int i,int j){ 8/?uU]#Q  
int pivotIndex=(i+j)/2; ' 5 qL  
file://swap )^S^s >3  
SortUtil.swap(data,pivotIndex,j); h$ iyclX  
W?J*9XQ`  
int k=partition(data,i-1,j,data[j]); n3g WM C  
SortUtil.swap(data,k,j); '3UIriY6  
if((k-i)>1) quickSort(data,i,k-1); {_ho!OS>  
if((j-k)>1) quickSort(data,k+1,j); Bj($_2M%+  
u$,Wyi )L  
} _AHB|P I  
/** |ezO@  
* @param data  Ox*T:5  
* @param i FJ,\?ooGf  
* @param j ?Wz(f{Hm  
* @return YZ:'8<  
*/ r]EZ)qp^@  
private int partition(int[] data, int l, int r,int pivot) { o p5^9`"  
do{ $_7d! S"  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); K<  
SortUtil.swap(data,l,r); 4f[M$xU&h  
} pkV\D  
while(l SortUtil.swap(data,l,r); q MdtJ(gq  
return l;  !QW 0  
} X.AWs=:-  
V<NsmC=g  
} ^@LhUs>3  
}Oh'YX#[  
改进后的快速排序: RQ)!KlY  
9EA !j}  
package org.rut.util.algorithm.support; M|E2&ht  
awSS..g}L  
import org.rut.util.algorithm.SortUtil; $s(4?^GP  
vl{_M*w ;  
/** I1 R\Ts@  
* @author treeroot (VXx G/E3  
* @since 2006-2-2 K-Dk2(x  
* @version 1.0 ':2*+  
*/ pT;-1c%:  
public class ImprovedQuickSort implements SortUtil.Sort { p5# P r  
%f> |fs  
private static int MAX_STACK_SIZE=4096; sHPwW5j/o'  
private static int THRESHOLD=10; :*&9TNU E@  
/* (non-Javadoc) V=zM5MH2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) s8yTK2v2\  
*/ OxHw1k  
public void sort(int[] data) { )3`  
int[] stack=new int[MAX_STACK_SIZE]; u388Wj   
$7gB&T.x  
int top=-1; ,ORG"]_F  
int pivot; gC_s\WU  
int pivotIndex,l,r; i h$@:^\  
N4` 9TN7  
stack[++top]=0; *CPB5s  
stack[++top]=data.length-1; I bv_D$cT  
E_![`9i  
while(top>0){ J.e8UQ@=5  
int j=stack[top--]; ^2;(2s  
int i=stack[top--]; (|a$N.e&K  
R!V5-0%  
pivotIndex=(i+j)/2; gcW{]0%L^  
pivot=data[pivotIndex]; .iP G/e  
WP% {{zR$  
SortUtil.swap(data,pivotIndex,j);  IB.'4B7  
XC/]u%n8](  
file://partition JX\T {\m#  
l=i-1; LcpyW=)}"V  
r=j; kO,VayjT  
do{ Ky '3z"  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 8F`BJ6='  
SortUtil.swap(data,l,r); +zVcOS*-  
} B )1<`nJA  
while(l SortUtil.swap(data,l,r); b!^M}s6  
SortUtil.swap(data,l,j); ]2xx+P#Y  
JJ N(M*;  
if((l-i)>THRESHOLD){ ~g K-5}%!  
stack[++top]=i; T) Zt'M  
stack[++top]=l-1; p'%: M  
} SN[L4}{  
if((j-l)>THRESHOLD){ _8NEwwhc  
stack[++top]=l+1; |B1; l<|`  
stack[++top]=j; Kixr6\  
} _r<zSH%  
:uIi ?  
} V$-~%7@>;9  
file://new InsertSort().sort(data); x '=3&vc4  
insertSort(data); iKF$J3a\2f  
} 6m-:F.k1(  
/** 2<6`TA*m  
* @param data [B"dH-r7  
*/ i!1ho T$  
private void insertSort(int[] data) { #4P3xa  
int temp; nI`f_sp  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); !e:iB7<  
} ##EB; Y  
} E,<\T6/%q  
} *gM,x4Y  
j]!7BHC  
} $KwI}>E4  
jSwtf  
归并排序: "W &:j:o  
*]}CSZ[>  
package org.rut.util.algorithm.support; V9fGVDl;  
nOAJ9  
import org.rut.util.algorithm.SortUtil; ` j&0VIU>>  
0kNe?Xi  
/** 5|<yfk8*J  
* @author treeroot QQg8+{>  
* @since 2006-2-2 BR& Aq  
* @version 1.0 ;~Q  
*/ V>b2b5QAH,  
public class MergeSort implements SortUtil.Sort{ 7SgweZ}"  
D00G1:Ft(T  
/* (non-Javadoc) JmU<y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) heE}_,$|  
*/ qj~flw1:  
public void sort(int[] data) { }}^,7npU  
int[] temp=new int[data.length]; ID67?:%r  
mergeSort(data,temp,0,data.length-1); S=0"f}Jo.  
} IVI~1~  
@~m=5C  
private void mergeSort(int[] data,int[] temp,int l,int r){ sU) TXL'_!  
int mid=(l+r)/2; G(U9rJ9  
if(l==r) return ; h>}ax\h  
mergeSort(data,temp,l,mid);  \#4m@  
mergeSort(data,temp,mid+1,r); A}t%;V2  
for(int i=l;i<=r;i++){ tigT@!`$Y  
temp=data; 403[oOj  
} T>}0) s  
int i1=l; z%(Fo2)^  
int i2=mid+1; a q3~!T;W  
for(int cur=l;cur<=r;cur++){ %KGq*|GUu  
if(i1==mid+1) 9T(L"9r-e  
data[cur]=temp[i2++]; 21r= = H$  
else if(i2>r) 63W{U/*aao  
data[cur]=temp[i1++]; e]lJqC  
else if(temp[i1] data[cur]=temp[i1++]; !ZFr7Xz  
else 9n1ZVP.ag  
data[cur]=temp[i2++]; !Y ( apVQ  
} QX[Djz0H8  
} q@(1Yivk  
10p8|9rE}B  
} <f N; xIB  
0,HqE='w  
改进后的归并排序: Vclr)}5  
>~_J q|KBB  
package org.rut.util.algorithm.support; !c%  
tAF]2VV(e  
import org.rut.util.algorithm.SortUtil; l , ..5   
QV7,G9  
/** .*BA 1sjE  
* @author treeroot Yc^%zxub  
* @since 2006-2-2 &5?G-mn  
* @version 1.0 AXs=1  e  
*/ MDJc[am  
public class ImprovedMergeSort implements SortUtil.Sort { 11@]d ]v ,  
bmu6@jT  
private static final int THRESHOLD = 10; 089 k.WG  
e}c&LDgU  
/* B`fH^N  
* (non-Javadoc) $B\ H  
* i}v9ut]B  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2-~|Z=eGW  
*/ w5`#q&?  
public void sort(int[] data) { B MM--y@  
int[] temp=new int[data.length]; gH[,Xx?BN!  
mergeSort(data,temp,0,data.length-1); +Mk#9 r  
} Y;Ap9i*  
`H>b5  
private void mergeSort(int[] data, int[] temp, int l, int r) { K/txD20 O|  
int i, j, k; ks*Y9D*=  
int mid = (l + r) / 2; r`j Wp\z  
if (l == r) Rf)ke("  
return; /@hJpz|+   
if ((mid - l) >= THRESHOLD) 0"78/6XIs  
mergeSort(data, temp, l, mid); aBhV3Fd[B  
else iib  
insertSort(data, l, mid - l + 1); v!9i"@<!  
if ((r - mid) > THRESHOLD) ]ab#q=  
mergeSort(data, temp, mid + 1, r); 7{e=="#*  
else !4WEk  
insertSort(data, mid + 1, r - mid); 5{K}?*3hJ  
hN3u@P^  
for (i = l; i <= mid; i++) { ib$nc2BPb  
temp = data; D'b#,a;V  
} g JjN<&,  
for (j = 1; j <= r - mid; j++) { (CJ.BHu]  
temp[r - j + 1] = data[j + mid]; pXu/(&?  
} MV0Lq:# N  
int a = temp[l]; i%-Ld Ka}"  
int b = temp[r]; x({H{'9?  
for (i = l, j = r, k = l; k <= r; k++) { : =Kx/E:1  
if (a < b) { e$e#NoN  
data[k] = temp[i++]; 5|I55CTx  
a = temp; c3)C{9T](  
} else { c)}2K0  
data[k] = temp[j--]; w8Vw1wW  
b = temp[j]; l>6@:nq|R  
} oH#v6{y  
} \K iwUz  
} -r<#rITH"  
HfB@vw^  
/** CSTI?A"P  
* @param data >9H@|[C  
* @param l n6MM5h/#r  
* @param i F%d \~Vj  
*/ .fYZ*=P;c  
private void insertSort(int[] data, int start, int len) { ?F7o!B  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); t<j^q`;@v  
} +Qxu$#  
} \.uc06  
} j(rL  
} lFSe?X^  
"*z_O  
堆排序: 0d^Z uTN  
jS.g]k  
package org.rut.util.algorithm.support; (`BSVxJH  
6KZf%)$  
import org.rut.util.algorithm.SortUtil; S4CbyXW  
zYY$D.  
/** ] )DX%$f  
* @author treeroot Y&HK1>M_  
* @since 2006-2-2 5O/i3m26  
* @version 1.0 px;/8c-  
*/ -r7]S  
public class HeapSort implements SortUtil.Sort{ L!Cz'm"Nl  
o Y}]UB>  
/* (non-Javadoc) .@q-B+Eg  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a:, y Z  
*/ uX/$CM  
public void sort(int[] data) { 8~lIe:F-  
MaxHeap h=new MaxHeap(); S~Z|PLtF  
h.init(data); :O<bA& :d  
for(int i=0;i h.remove(); l_tw<`Ep  
System.arraycopy(h.queue,1,data,0,data.length); lbdTQ6R  
} wXMDh$  
I04jjr:<  
private static class MaxHeap{ l_'[27  
^ KK_qC  
void init(int[] data){ X~=xXN.  
this.queue=new int[data.length+1]; wxg^Bq)D*R  
for(int i=0;i queue[++size]=data; <h).fX  
fixUp(size); YTQt3=1ii  
} j(:I7%3&(*  
} f3j{VN  
D_mL,w  
private int size=0; >_dx_<75&  
Q5{Pv}Jx  
private int[] queue; ,#FLM`  
!Z!g:II /  
public int get() { )n49lr6 X  
return queue[1]; U[L9*=P;  
} %CwL:.|  
,;?S\V  
public void remove() { `@d<n  
SortUtil.swap(queue,1,size--); YJg,B\z}  
fixDown(1); znJhP}(  
} (&|_quP7O  
file://fixdown -9 !.m  
private void fixDown(int k) { wbDM5%  
int j; O%g $9-?F0  
while ((j = k << 1) <= size) { E:zF/$tG  
if (j < size %26amp;%26amp; queue[j] j++; C51bc6V  
if (queue[k]>queue[j]) file://不用交换 Y2B &go  
break; ^;,M}|<h  
SortUtil.swap(queue,j,k); 9a\nszwa  
k = j; [ EFMu;q  
} Spo?i.#  
} k#8Ti"0  
private void fixUp(int k) { )"zvwgaW  
while (k > 1) { UYk>'\%H0  
int j = k >> 1; DRqZ,[!+  
if (queue[j]>queue[k]) )"f N!9,F  
break; dm-pxE "  
SortUtil.swap(queue,j,k); Mb3}7@/[  
k = j; |qZko[W}=  
} 1im^17 X  
} X[#zCM  
8+]hpa,q  
} 3lV^B[$  
U\/5;Txy(  
} (feTk72XX  
.@ xF6UZ  
SortUtil: x21dku<6K[  
zR!o{8  
package org.rut.util.algorithm; ?JL7=o X  
o6f_l^+H  
import org.rut.util.algorithm.support.BubbleSort; tiN?/  
import org.rut.util.algorithm.support.HeapSort; cvwhSdZu8  
import org.rut.util.algorithm.support.ImprovedMergeSort; =%'`YbD$  
import org.rut.util.algorithm.support.ImprovedQuickSort; ]9}HEu;1M  
import org.rut.util.algorithm.support.InsertSort; zF5uN:-s  
import org.rut.util.algorithm.support.MergeSort; 7t,t`  
import org.rut.util.algorithm.support.QuickSort; G-9iowS/A  
import org.rut.util.algorithm.support.SelectionSort; VG/3xR&y  
import org.rut.util.algorithm.support.ShellSort; )54%HM_$k  
vI$t+m:  
/** ?+T^O?r|O  
* @author treeroot s@MYc@k  
* @since 2006-2-2 \om%Q[F7a  
* @version 1.0 .]aF 1}AI  
*/ iC iZJ"  
public class SortUtil { qfcYE=  
public final static int INSERT = 1; p ?wI9GY  
public final static int BUBBLE = 2; 2Z20E$Cb  
public final static int SELECTION = 3; g$. \  
public final static int SHELL = 4; e #/E~r&  
public final static int QUICK = 5; =] 3tUD  
public final static int IMPROVED_QUICK = 6; p4VeRJk%  
public final static int MERGE = 7; UT}i0I9  
public final static int IMPROVED_MERGE = 8; A(]H{>PMy  
public final static int HEAP = 9; EGl^!.'  
VLBE'3Qg 1  
public static void sort(int[] data) { Be+0NXLVy  
sort(data, IMPROVED_QUICK); t>8XTqqi  
} !mXxAo  
private static String[] name={ fwzb!"!.@  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" AIA6yeaU  
}; $%VuSrZ&  
a<]B B$~  
private static Sort[] impl=new Sort[]{ qY 4#V k  
new InsertSort(), *%KKNT'*  
new BubbleSort(), $ cj>2.   
new SelectionSort(), tH'2gl   
new ShellSort(), Zw wqSyuGf  
new QuickSort(), !%dN<%Ah  
new ImprovedQuickSort(), wf1lyS  
new MergeSort(), BB|?1"neg  
new ImprovedMergeSort(), VY)s+Bx  
new HeapSort() uYrfm:4S  
}; DNP13wp@  
V ]90  
public static String toString(int algorithm){ gk`zA  
return name[algorithm-1]; [ @4rjGwB  
} 1 hg}(Hix  
-GLMmZJt  
public static void sort(int[] data, int algorithm) { G9JAcO1  
impl[algorithm-1].sort(data); u+{a8=  
} ;2Q~0a|  
+VQ\mA59  
public static interface Sort { @?"h !fyu  
public void sort(int[] data); <]G]W/eB'  
} QNDHOo>v  
/r_~: 3F  
public static void swap(int[] data, int i, int j) { F5o+kz$;  
int temp = data; LY-2sa#B$-  
data = data[j]; n@G[  
data[j] = temp; |^@dFOz  
} z3uW)GQ.  
} Zdn~`Q{  
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:
10+5=?,请输入中文答案:十五