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
  • 7845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。 LtgXShp_!  
插入排序:  Y k7-`  
oFsM6+\/S  
package org.rut.util.algorithm.support; tiPa6tQ  
E-5_{sc  
import org.rut.util.algorithm.SortUtil; H].y w9  
/** $(pF;_W  
* @author treeroot ; 0v>Rfa  
* @since 2006-2-2 m} ?rJ  
* @version 1.0 ` Nh"  
*/ %qf  V+^  
public class InsertSort implements SortUtil.Sort{ ef!XV7 P  
~X(UcZ2  
/* (non-Javadoc) , "0)6=AE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >g ll-&;t  
*/ nz.{P@[Qk  
public void sort(int[] data) { ^D^JzEy'?C  
int temp; revF;l6->C  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); %^. %OCX:  
} yL4 T  
} |R/.r_x,V?  
} d)o!5L  
Ck =;1sGh  
} B$Z3+$hfF  
P,DC7\  
冒泡排序: T'-FV  
"t=hzn"~%  
package org.rut.util.algorithm.support; Joe_PS  
SlLw{Yb7\.  
import org.rut.util.algorithm.SortUtil; R8ONcG  
oPKr* `'  
/** K0+.q?8D|  
* @author treeroot 7xo4-fIuT  
* @since 2006-2-2 RC#C\S6  
* @version 1.0 QYb33pN|  
*/ V&]DzjT/  
public class BubbleSort implements SortUtil.Sort{ pE.PX 8  
-5l6&Y   
/* (non-Javadoc) lfsqC};#\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HL3XyP7  
*/ qm*}U3K  
public void sort(int[] data) { .9[45][FK  
int temp; [k$*4 u >  
for(int i=0;i for(int j=data.length-1;j>i;j--){ Z=5qX2fy1*  
if(data[j] SortUtil.swap(data,j,j-1); j9+I0>#X  
} 4M&`$Wim  
} X.F^$  
} g.JN_t5  
} x"P);su  
3VnQnd E  
} |%a4` w  
,6^ znOt  
选择排序: C`jM0Q  
;^Sr"v6r>u  
package org.rut.util.algorithm.support; w9RS)l2FQ  
5qUTMT['T  
import org.rut.util.algorithm.SortUtil; vR6Bn  
k^ F@X  
/** 2f`nMW  
* @author treeroot YT/kC'A  
* @since 2006-2-2 PYRd] %X  
* @version 1.0 ^I6^g  
*/ zjL.Bhiud  
public class SelectionSort implements SortUtil.Sort { V==z"  
SHb(O<6  
/* spofLu.  
* (non-Javadoc) ]&~]#vB#  
* {4aWR><  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  }}<Z,/O  
*/ BElJB&I  
public void sort(int[] data) { DD9?V}Yx  
int temp; nfW&1a  
for (int i = 0; i < data.length; i++) { @XD+'{]  
int lowIndex = i; 8.=\GV  
for (int j = data.length - 1; j > i; j--) { \,Lo>G`!  
if (data[j] < data[lowIndex]) { 'D1A}X  
lowIndex = j; V(MFna)  
} jeyLL<  
} Do%-B1{ri  
SortUtil.swap(data,i,lowIndex); \o-&f:  
} ZR v"h/~  
} RC|!+ TD  
IPSF]"}~  
} Wjh/M&,  
E@05e  
Shell排序: W>(/ bX  
./j,Z$|  
package org.rut.util.algorithm.support; |wEN`#.;b  
o'~5pS(wq  
import org.rut.util.algorithm.SortUtil; -V"22sR]  
K ]OK:hY4  
/** $ N']TN  
* @author treeroot "N:XzG  
* @since 2006-2-2 lJP1XzN_  
* @version 1.0 8 #X5K  
*/ kc'pN&]r:  
public class ShellSort implements SortUtil.Sort{ X0;4_,=  
H xV#WoYKj  
/* (non-Javadoc) !|q<E0@w\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %S` v!*2  
*/ YJS{i  
public void sort(int[] data) { oBq 49u1  
for(int i=data.length/2;i>2;i/=2){ q{2I_[p  
for(int j=0;j insertSort(data,j,i); }ZSQ>8a  
} ffXyc2o  
} }u+a<:pkK  
insertSort(data,0,1); 6<,dRn  
} m]_FQWfet  
qQi.?<d2"s  
/** thO ~=RB  
* @param data Ko&hj XHx  
* @param j !}\4u tHY  
* @param i /<CSVJ_r  
*/ @\oz4^  
private void insertSort(int[] data, int start, int inc) { v]% WH~>  
int temp; *?+V65~dW  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); G iq=*D+  
} 5WqXo{S  
} >StO.Q99  
} 5G0 $  
YI-O{U  
} b 6t}{_7  
DcMJ^=r8O:  
快速排序: f\;65k_jq  
f"7M^1)h2%  
package org.rut.util.algorithm.support; Z34Wbun4  
]Q "p\@\!  
import org.rut.util.algorithm.SortUtil; )2UZ% ?V#  
jEc|]E  
/** IvpcSam'  
* @author treeroot ;Zj]~|  
* @since 2006-2-2 h=kQ$`j6  
* @version 1.0 sG~<M"znV  
*/ 'sp-%YlM -  
public class QuickSort implements SortUtil.Sort{ q'oMAMf}  
zL5d0_E9  
/* (non-Javadoc) 8,O33qwH  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %xlqF<  
*/ v{i7h|e  
public void sort(int[] data) { =.|J!x  
quickSort(data,0,data.length-1); OI} &m^IOo  
} d0hhMx6$  
private void quickSort(int[] data,int i,int j){ Y $g$x<7  
int pivotIndex=(i+j)/2; p\C%%  
file://swap wpA`(+J  
SortUtil.swap(data,pivotIndex,j); % |q0-x  
G>YAJ o  
int k=partition(data,i-1,j,data[j]); (vR 9H(#  
SortUtil.swap(data,k,j); a</D_66  
if((k-i)>1) quickSort(data,i,k-1); r4x3$M c  
if((j-k)>1) quickSort(data,k+1,j); \^1+U JU  
L.xZ_ 6  
} _<$>*i R  
/** krq/7|  
* @param data Z'^U ad6  
* @param i TUT][ =.=  
* @param j VHOfaCE  
* @return c/L>>t  
*/ =H0vE7{*  
private int partition(int[] data, int l, int r,int pivot) { #{r#;+  
do{ e@@?AB$n(  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ,=(Z00#(  
SortUtil.swap(data,l,r); xE}VTHFo'  
} hA 3HVP_  
while(l SortUtil.swap(data,l,r); SUWD]k>PH  
return l; 6#}93Dgv4  
} L_Q#(in  
d;Hn#2C  
} syx\gz  
G.+l7bnZM  
改进后的快速排序: 9 7%0;a8  
JB</euyV  
package org.rut.util.algorithm.support; a/~aFmu6b  
rzrl>9 h  
import org.rut.util.algorithm.SortUtil; E'1+Yq  
{)- .xG  
/** [w -{r+[  
* @author treeroot oMcK`%ydm  
* @since 2006-2-2 gADmN8G=  
* @version 1.0 .*=]gZ$IE  
*/ NT%W;)6m9  
public class ImprovedQuickSort implements SortUtil.Sort { :J}t&t  
z s Qo$p  
private static int MAX_STACK_SIZE=4096; i$^)UZJ&0  
private static int THRESHOLD=10; [=uo1%  
/* (non-Javadoc) DfJ2PX}q  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d#:3be{|&q  
*/ "O+5R(XT  
public void sort(int[] data) { nmlPX7!{$  
int[] stack=new int[MAX_STACK_SIZE]; q,<[hBri-  
_2fkb=2@  
int top=-1; 0,*%vG?Q  
int pivot; qP!eJ6[Nh"  
int pivotIndex,l,r; P ]N [y  
Jxf~&!zR  
stack[++top]=0; z^o1GY  
stack[++top]=data.length-1; ;vhyhP.oM  
A6<C-1 N}j  
while(top>0){ 5q{h 2).)  
int j=stack[top--]; tC8(XMVx  
int i=stack[top--]; C8@TZ[w  
ZA~Z1Mro#"  
pivotIndex=(i+j)/2; v,NHQyk  
pivot=data[pivotIndex]; 7Y=cn_ wU  
d {lP  
SortUtil.swap(data,pivotIndex,j); ?:^mBb) T  
n?#!VN3  
file://partition Z>F^C}8f  
l=i-1; C7T(+Wd!,  
r=j; @J[6,$UVu  
do{ I3u{zHVwI  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); M|T4~Q U&  
SortUtil.swap(data,l,r); "_L?2ta  
} ci,+Bjc  
while(l SortUtil.swap(data,l,r); fkfZ>D^1  
SortUtil.swap(data,l,j); ?wMHS4  
K*K1(_x=  
if((l-i)>THRESHOLD){ 5_K5?N  
stack[++top]=i; F}Mhs17!|  
stack[++top]=l-1; tc_f;S`k  
} L;_c|\%  
if((j-l)>THRESHOLD){ dN Y"]b  
stack[++top]=l+1; &a> lWE  
stack[++top]=j; Y izE5[*  
} >Sk[vI0Y  
#)+- lPe  
} fnzy5+9"  
file://new InsertSort().sort(data); s*M@%_A?  
insertSort(data); 9D@$i<D:  
} PDx)S7+w[  
/** fLN!EDq  
* @param data VeiElU3  
*/ &zL#hBE  
private void insertSort(int[] data) { Zr$d20M2A;  
int temp; '/0#lF  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); W:&R~R  
} k!jNOqbb  
} J.*XXM- V  
} %/"Oxi^G  
Gtv,Izt  
} RR1A65B  
J}spiVM  
归并排序: <Pqv;WI|R  
@54*.q$  
package org.rut.util.algorithm.support; CDMfa&;T  
tury<*  
import org.rut.util.algorithm.SortUtil; 3 K/Df#  
ske@uzAz  
/** # jYpVc{]  
* @author treeroot oR+-+-? ?$  
* @since 2006-2-2  }`/gX=91  
* @version 1.0 A)n W  
*/ R U"/2i  
public class MergeSort implements SortUtil.Sort{ V|Tud  
xIbMs4'iEx  
/* (non-Javadoc) k@!r#`j3  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4YG/`P  
*/ KHiFJ_3  
public void sort(int[] data) { \jW)Xy  
int[] temp=new int[data.length]; `T*U]/zQ  
mergeSort(data,temp,0,data.length-1); hi{%pi&!T  
} l1_X(Z._V  
T~4mQuYi  
private void mergeSort(int[] data,int[] temp,int l,int r){ yT /EHmJ  
int mid=(l+r)/2; L6:h.1 U$  
if(l==r) return ; qX:B4,|ck  
mergeSort(data,temp,l,mid); ,1n >U?5  
mergeSort(data,temp,mid+1,r); !jX4`/n2  
for(int i=l;i<=r;i++){ `qpc*enf0  
temp=data; MKGS`X]<J  
} `hh9"Ws%  
int i1=l; I\P Bu$Ww  
int i2=mid+1; 2F_ R/{D  
for(int cur=l;cur<=r;cur++){ HP2wtN{Zs  
if(i1==mid+1) rp! LP#*  
data[cur]=temp[i2++]; b=##A  
else if(i2>r) mxTk+j=  
data[cur]=temp[i1++]; Ry;$^.7%  
else if(temp[i1] data[cur]=temp[i1++]; >X}{BDMb.  
else u/^|XOy  
data[cur]=temp[i2++]; )-P!Ae_.v  
} #5CI)4x0!  
} dZ2%S''\  
7 &)]) {Q  
} >O{7/)gS^  
{5:Zl<0  
改进后的归并排序: I %_MV  
=6%|?5G  
package org.rut.util.algorithm.support; AMlV%U#  
1IH[g*f  
import org.rut.util.algorithm.SortUtil; </oY4$l'  
_uH9XGm  
/** G"s0GpvQ  
* @author treeroot 7| YrdK<  
* @since 2006-2-2 /"AvOh*  
* @version 1.0 K!{5 [G  
*/ WnxEu3U  
public class ImprovedMergeSort implements SortUtil.Sort { `"y`AY/N  
CDg AGy  
private static final int THRESHOLD = 10; 60B-ay0e$b  
nnCug  
/* 6XUuGxQV/  
* (non-Javadoc) V% axeqs  
* 4KpL>'Q=  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) cf8-]G?tK  
*/ h* .w"JO  
public void sort(int[] data) { y%(X+E"n*  
int[] temp=new int[data.length]; Ub)I66  
mergeSort(data,temp,0,data.length-1); )qM|3],  
} [, f)9v)  
;b~~s.+  
private void mergeSort(int[] data, int[] temp, int l, int r) { -zfoRU v  
int i, j, k; D&{ *AH%Q  
int mid = (l + r) / 2; b](o]O{v  
if (l == r) [B/0-(?  
return; # mT]j""  
if ((mid - l) >= THRESHOLD) jz:gr=* z  
mergeSort(data, temp, l, mid); aiftlY  
else WYIw5 jzC  
insertSort(data, l, mid - l + 1); ,+L KJl  
if ((r - mid) > THRESHOLD) IsYP0(L  
mergeSort(data, temp, mid + 1, r); g'lT  
else 8OAg~mQ15(  
insertSort(data, mid + 1, r - mid); H~9=&p[Q  
vZjZb(jlN  
for (i = l; i <= mid; i++) { : }?{@#Z  
temp = data; ZlR!s!vv  
} "~$$  
for (j = 1; j <= r - mid; j++) { 1kFjas `g  
temp[r - j + 1] = data[j + mid]; [8]m8=n  
} X , ZeD  
int a = temp[l]; "EPD2,%S  
int b = temp[r]; HhSjR%6HY;  
for (i = l, j = r, k = l; k <= r; k++) { }p'8w\C$  
if (a < b) { =7jEz+w#  
data[k] = temp[i++]; l1-HO  
a = temp; qi=3L  
} else { [&VxaJ("3  
data[k] = temp[j--]; lizTRVBE  
b = temp[j]; !WKk=ysFS  
}  (K #A  
} f!g<3X{=  
} Yo2Trh  
)!-S|s'  
/** ~77 5soN  
* @param data J?jeYW   
* @param l :R+],m il  
* @param i \C/z%Hf7-  
*/ h([0,:\  
private void insertSort(int[] data, int start, int len) { ]h@{6N'oNS  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1);  KOS yh<&  
} 0|C[-ppr  
} 7%CIt?Z%  
} -CU,z|g+  
} lgT?{,>RkW  
Z{}+)Q*Q  
堆排序: dF,DiRD  
i$O#%12l  
package org.rut.util.algorithm.support; XiG88Kwv  
<xF?~7  
import org.rut.util.algorithm.SortUtil; `pYE[y+  
N(R,8GF5G  
/** 3 jh|y,  
* @author treeroot ,OB&nN t>  
* @since 2006-2-2 Nmf#`+7gCI  
* @version 1.0 <nA3Sd"QfV  
*/ AQ}l%  
public class HeapSort implements SortUtil.Sort{ 3wNN<R  
\Da~p9 T&  
/* (non-Javadoc) SJ(9rhB5*.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Yq;&F0paK  
*/ MVAc8dS  
public void sort(int[] data) { ,k%8yK  
MaxHeap h=new MaxHeap(); nHU3%%%cU  
h.init(data); z(UX't (q  
for(int i=0;i h.remove(); P1QB`&8F  
System.arraycopy(h.queue,1,data,0,data.length); eCL?mhK  
} 2{};6{yz  
ayH>XwY6  
private static class MaxHeap{ -s~p}CQ.  
'%Dg{ zL  
void init(int[] data){ ZOHRUm  
this.queue=new int[data.length+1]; p;ZDpR  
for(int i=0;i queue[++size]=data; )`RZkCe  
fixUp(size); fiqj;GW  
} ^z?=?%{  
} R7t bxC  
zf")|9j  
private int size=0; -AeHY'T  
1 ' %-y  
private int[] queue; _ ^3@PM>  
2^ kn5  
public int get() { s.e y!ew  
return queue[1]; ^ N_`^m  
} ZArf;&8  
n(# c`t*  
public void remove() { @f'AWeJ2  
SortUtil.swap(queue,1,size--); ;@O(z*14@  
fixDown(1); %w%zv2d  
} ,,2_/u\"/i  
file://fixdown ~pwY6Q  
private void fixDown(int k) { pb= HVjW<  
int j; 6KBHRt  
while ((j = k << 1) <= size) { .=aMjrME  
if (j < size %26amp;%26amp; queue[j] j++; 3?6Ber y=  
if (queue[k]>queue[j]) file://不用交换 CCwK8`%   
break; <sF!]R&4  
SortUtil.swap(queue,j,k); lZ+/\s,]|  
k = j; _4S7wOq5  
} 3~8AcX@  
} ri;r7Y9V9`  
private void fixUp(int k) { '4Y*-!9  
while (k > 1) { |W/Hi^YE2  
int j = k >> 1; n7'<3t  
if (queue[j]>queue[k]) |O^V)bZmx  
break;  pe|\'<>i  
SortUtil.swap(queue,j,k); akY6D]M  
k = j; -hm 9sNox  
} t"FRLC  
} }8X:?S %  
+0)5H>h  
} /XC;.dLA#  
aGe\.A=  
} Pyit87h{  
r]Z.`}Kkm  
SortUtil: T&e%/  
DwQp$l'NfW  
package org.rut.util.algorithm; HJ(=?TU  
|O'Hh7  
import org.rut.util.algorithm.support.BubbleSort; ec,z6v^9  
import org.rut.util.algorithm.support.HeapSort; yA457'R1  
import org.rut.util.algorithm.support.ImprovedMergeSort; )z|_*||WU^  
import org.rut.util.algorithm.support.ImprovedQuickSort; Oym]&SrbS  
import org.rut.util.algorithm.support.InsertSort; >4Fd xa  
import org.rut.util.algorithm.support.MergeSort; !WDn7j'A  
import org.rut.util.algorithm.support.QuickSort; 7E@$}&E  
import org.rut.util.algorithm.support.SelectionSort; W'8J<VBD  
import org.rut.util.algorithm.support.ShellSort; ;%lJD"yF  
<:H  
/** _p?I{1O  
* @author treeroot 6YB-}>?  
* @since 2006-2-2 ~6=Wq64  
* @version 1.0 E%KC'T N^D  
*/ 30:HRF(:  
public class SortUtil { .kz(V5  
public final static int INSERT = 1; 4j2~"K  
public final static int BUBBLE = 2; <;.}WQC  
public final static int SELECTION = 3; @faF`8LwA  
public final static int SHELL = 4; r< N-A?a  
public final static int QUICK = 5; w?*'vF_2:#  
public final static int IMPROVED_QUICK = 6; Iht mD@H}  
public final static int MERGE = 7; pU[a[  
public final static int IMPROVED_MERGE = 8; )[F46?$vrk  
public final static int HEAP = 9; C8O7i[uc  
yAZ.L/jyr  
public static void sort(int[] data) { e\+~  
sort(data, IMPROVED_QUICK); y'i:%n}I  
} 98<bF{#0WM  
private static String[] name={ QqT6P`0u  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 4OB~h]Vc  
}; kM}ic(K  
R  oF  
private static Sort[] impl=new Sort[]{ [7ek;d;'t  
new InsertSort(), hA&j?{  
new BubbleSort(), uH~ TugQ~  
new SelectionSort(), (PE8H~d  
new ShellSort(), -hJ>wGI  
new QuickSort(), JXD?a.vy^q  
new ImprovedQuickSort(), %^)JaEUC  
new MergeSort(), NC[GtAPD3  
new ImprovedMergeSort(), 4N0W& Dy  
new HeapSort() K[3D{=  
}; o 0cc+  
MSrY*)n!>O  
public static String toString(int algorithm){ ^~*[~  
return name[algorithm-1]; $ M[}(m  
} 6vp8LNSW  
WPh |~]by<  
public static void sort(int[] data, int algorithm) { k(vEp ]  
impl[algorithm-1].sort(data); aZ`_W|  
} AcfkY m~  
y9l.i@-  
public static interface Sort { }i/2XmA )  
public void sort(int[] data); fuIv,lDA  
} Gh>fp  
Y|qixpP  
public static void swap(int[] data, int i, int j) { p'w"V6k('~  
int temp = data; Ubos#hP  
data = data[j]; B$[%pm`'2  
data[j] = temp; P.H/H04+  
} 35]G_\  
} Ns(L1'9=  
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:
3+5=?,请输入中文答案:八 正确答案:八