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
  • 8401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。 %O;bAC_M  
插入排序: ;K &o-y  
5=?\1`e1[  
package org.rut.util.algorithm.support; o"BoZsMk  
WYYa /,{9.  
import org.rut.util.algorithm.SortUtil; "E?2xf|.  
/** Hi`//y*92H  
* @author treeroot @)&=%  
* @since 2006-2-2 ,47Y9Kz9  
* @version 1.0 PJrtM AcKq  
*/ 4G>H  
public class InsertSort implements SortUtil.Sort{ U,-39mr  
r7,t";?>  
/* (non-Javadoc) ^vO+(p  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nl,uuc*;  
*/ s)Cjc.Qs  
public void sort(int[] data) { QM#4uI55B  
int temp; K$_0 `>[  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); aC.~&MxFC  
} 6}Y#=}  
} O ,h;hQZ  
} :| 8M`18lZ  
<r`2)[7N  
} zY!j:FT1HY  
FfPar:PHj  
冒泡排序: vV e';|8v  
Ab"@714@  
package org.rut.util.algorithm.support; xzZ38xIhV  
>R! jB]5  
import org.rut.util.algorithm.SortUtil; 1sdLDw_)p  
|CZ@te)>  
/** r_6ZO&  
* @author treeroot QR0Q{}wbqU  
* @since 2006-2-2 0C6-GKbZ  
* @version 1.0 %k?U9pj^  
*/ ;Q*or2"!  
public class BubbleSort implements SortUtil.Sort{ 2M'[,Xe  
Z>Wg*sZy)  
/* (non-Javadoc) 4 bH^":i(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pF Rg?-  
*/ r^a7MHY1  
public void sort(int[] data) { $LFYoovX  
int temp; '>0fWBs  
for(int i=0;i for(int j=data.length-1;j>i;j--){ {|:;]T"y  
if(data[j] SortUtil.swap(data,j,j-1); jesGV<`?l  
} Rt!FPoN,y  
} 5BKt1%Pg  
} iJ3e1w$  
} aV?@s4  
"*5hiTr8+  
} CcFn.omA  
3.W@ }   
选择排序: 3#&7-o  
| >htvDL  
package org.rut.util.algorithm.support; LBsluT  
>>o dZL  
import org.rut.util.algorithm.SortUtil; OJ$]V,Z00x  
J/GSceHF  
/** $[&*Bj11Yg  
* @author treeroot 9qz6]-K  
* @since 2006-2-2 a]/>ra5{  
* @version 1.0 vbBc}G"w  
*/ FCuB\ Q  
public class SelectionSort implements SortUtil.Sort { \r,Q1n?7  
2.zsCu4lj.  
/* +W\f(/q0  
* (non-Javadoc) Vle@4 ]M\  
*  Q&g^c2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d%,eZXg'  
*/ WKIoS"?-F  
public void sort(int[] data) { tj4VWJK  
int temp; U($dx.`v#  
for (int i = 0; i < data.length; i++) { {(wHPzq  
int lowIndex = i; ac.Ms(D  
for (int j = data.length - 1; j > i; j--) { @$c\d vO  
if (data[j] < data[lowIndex]) { W"'iIh)z `  
lowIndex = j; !l 1fIc  
} i Ae<&Ms  
} \\7ZWp\fN  
SortUtil.swap(data,i,lowIndex); YmgLzGk`  
} ?5 cI'  
} <'Wo@N7  
J<maQ6p  
} >U*T0FL7  
(egzH?  
Shell排序: D'A/wG  
( %xwl  
package org.rut.util.algorithm.support; Mo @C9Y0  
K7W6ZH9;  
import org.rut.util.algorithm.SortUtil; B'EKM)dA  
7`8Ik`lY  
/** ;Tc`}2  
* @author treeroot xs:n\N  
* @since 2006-2-2  <**y !2  
* @version 1.0 %V{7DA&C  
*/ uYil ?H{kH  
public class ShellSort implements SortUtil.Sort{ nwaxz>;  
EC8b=B<DE  
/* (non-Javadoc) OYmR<x5y/  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4NG?_D5&  
*/ WRDjh7~Efn  
public void sort(int[] data) { wG< (F}VX  
for(int i=data.length/2;i>2;i/=2){ :!b'Vk  
for(int j=0;j insertSort(data,j,i); 5<j%EQN|D  
} FR!? #!  
} P2'DD 3   
insertSort(data,0,1); !0C^TCuG  
} e0@Y#7N62  
SD$h@p=!=  
/** eI:C{0p=  
* @param data J6G(_(d  
* @param j E7)= `kSl  
* @param i _Bp1co85MQ  
*/ .h5[Q/*h  
private void insertSort(int[] data, int start, int inc) { .]7Qu;L  
int temp; )R  2.  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); h!:~f-@j4  
} ]U7KLUY>:  
} q)vplV1A  
} /2Bi@syxK  
?6jkI2w  
} /'DsB%7g  
-s$F&\5by  
快速排序: %ck]S!}6  
70mpSD3  
package org.rut.util.algorithm.support; B0!"A  
mzc 4/<th  
import org.rut.util.algorithm.SortUtil; `o?Ph&p}  
r~nsN*t  
/** VZ](uFBY  
* @author treeroot {Gw.l."  
* @since 2006-2-2 Xy &uZ  
* @version 1.0 V-r3-b  
*/ #\ n8M  
public class QuickSort implements SortUtil.Sort{ ,b;{emX h  
_#}n~}d  
/* (non-Javadoc) "0k8IVwp  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) RxN,^!OV  
*/ u% n*gcY  
public void sort(int[] data) { b-*3 2Y%  
quickSort(data,0,data.length-1); V{&rQ@{W  
} [mr9(m[F  
private void quickSort(int[] data,int i,int j){ m7GR[MR  
int pivotIndex=(i+j)/2; ,SiY;(b=\  
file://swap p6XtTx  
SortUtil.swap(data,pivotIndex,j); xvSuPP4 m  
/q$,'^.A  
int k=partition(data,i-1,j,data[j]); IMl!,(6;  
SortUtil.swap(data,k,j); ^~HQC*  
if((k-i)>1) quickSort(data,i,k-1); [j:[  
if((j-k)>1) quickSort(data,k+1,j); (nab  
[wB9s{CX  
} [kgdv6E  
/**  ?k|H3;\  
* @param data FSb Hn{@  
* @param i pdEiqLhH  
* @param j Z@%HvB7  
* @return ;kJA'|GX  
*/ i^!ez5z  
private int partition(int[] data, int l, int r,int pivot) { b (I2m  
do{ D^;*U[F?  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); .*JA!B  
SortUtil.swap(data,l,r); zb Z4|_  
} 'vaLUy9]  
while(l SortUtil.swap(data,l,r); .pvV1JA'  
return l; {Pu\?Cq  
} wgRs Z  
O8W7<Wc |z  
} |s)?cpb  
2',w[I  
改进后的快速排序: BiZ=${y  
([V V%ovZ  
package org.rut.util.algorithm.support; lM[XS4/TRa  
=FT98H2*|  
import org.rut.util.algorithm.SortUtil; z]bwnJfd  
{gaai  
/** (x$9~;<S*d  
* @author treeroot GzTq5uU&  
* @since 2006-2-2 X*7\lf2  
* @version 1.0 E|$Oha[  
*/ )CS.F=  
public class ImprovedQuickSort implements SortUtil.Sort { `K >?ju"  
b]JI@=s?  
private static int MAX_STACK_SIZE=4096; J!*/a'Cv  
private static int THRESHOLD=10; NCf"tK'5n  
/* (non-Javadoc) ,xT?mt}P  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^v@4|E$  
*/ F("#^$  
public void sort(int[] data) { [|3>MZ2/  
int[] stack=new int[MAX_STACK_SIZE]; 92'wkS  
a3 >zoN  
int top=-1; GBC*>Y  
int pivot; N=)z  
int pivotIndex,l,r; i o3yLIy,  
*+b6B_u]  
stack[++top]=0; <p?&udqD  
stack[++top]=data.length-1;  X}6#II  
*$M'`vj:  
while(top>0){ V8~jf-\$b  
int j=stack[top--]; Sj(F3wY  
int i=stack[top--]; STA4 p6  
='E$-_  
pivotIndex=(i+j)/2; oQj=;[  
pivot=data[pivotIndex]; -gz0md|Y  
KZBrE$@%5  
SortUtil.swap(data,pivotIndex,j); do ^RF<G  
:` $@}GI  
file://partition m2Uc>S  
l=i-1; ? QDWuPhN  
r=j; M'1!<a-Mp  
do{ j,2l8?  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); da$BUAqU  
SortUtil.swap(data,l,r); ^SfS~G Q  
} +tN &a  
while(l SortUtil.swap(data,l,r); t%r :4,  
SortUtil.swap(data,l,j); ?oiKVL"7  
@oG)LT  
if((l-i)>THRESHOLD){ ~H}en6Rc  
stack[++top]=i; qUF1XJZ }z  
stack[++top]=l-1; 0X(]7b&~R  
} J:F^ #gW  
if((j-l)>THRESHOLD){ qYp$fmj  
stack[++top]=l+1; efuK  
stack[++top]=j; 8)\M:s~7&  
} qOG}[%<^n7  
,goBq3[%?  
} &(xUhX T  
file://new InsertSort().sort(data); r++i=SQax  
insertSort(data); XDD<oo  
} wp.TfKxw  
/** G;oFTP>o  
* @param data [[)_BmS5r  
*/ <Jp1A# %p  
private void insertSort(int[] data) { ~tGCLf]c\  
int temp; C6& ( c  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); YTU.$t;Ez  
} .#5l$['  
} &}`K^5K|O:  
} $'[q4wo<  
 \`xkp[C  
} y02 u?wJ  
XvSIWs  
归并排序: _hCJ|Rrln  
8Vt4HD08  
package org.rut.util.algorithm.support; qSO*$1i  
*N/hc  
import org.rut.util.algorithm.SortUtil; ad`_>lA4Lp  
Pcu|k/tk  
/** 8Xm@r#Oy5  
* @author treeroot u=qPzmywt  
* @since 2006-2-2 H"+c)FGi  
* @version 1.0 R.1Xst &i  
*/ M} .b" ljZ  
public class MergeSort implements SortUtil.Sort{ 1=Ilej1  
f8:$G.}i  
/* (non-Javadoc) p`+VrcCBOd  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) uiBTnG"  
*/ I*1S/o_xI  
public void sort(int[] data) { :nQp.N*p  
int[] temp=new int[data.length]; RFG$X-.e  
mergeSort(data,temp,0,data.length-1); "6I[4U"@  
} C 7n Kk/r  
!g 0cC.'  
private void mergeSort(int[] data,int[] temp,int l,int r){ $<ddy/4  
int mid=(l+r)/2; GF--riyfB  
if(l==r) return ; iY.eJlfH  
mergeSort(data,temp,l,mid); :LV.G0)#  
mergeSort(data,temp,mid+1,r); <Ns &b.\h6  
for(int i=l;i<=r;i++){ ->yeJTsE9  
temp=data; Uk-HP\C"7  
} BGjb`U#%3  
int i1=l; X_70]^XL  
int i2=mid+1; mPmB6q%)]  
for(int cur=l;cur<=r;cur++){ R.7#zhC`4  
if(i1==mid+1) a%~yol0wO7  
data[cur]=temp[i2++]; Z|`fHO3j  
else if(i2>r) 6d{j0?mM  
data[cur]=temp[i1++]; 4S *,\q]q  
else if(temp[i1] data[cur]=temp[i1++]; Dc FCKji  
else b4~H3|  
data[cur]=temp[i2++]; _F8T\f |  
} LC'2q*:'  
} ( D}" &2  
$ly0h W  
} u3wL<$2[8  
]M4NpU M  
改进后的归并排序: vbn>mg5  
cjg=nTsBA  
package org.rut.util.algorithm.support; (G5xkygR9  
9oq)X[  
import org.rut.util.algorithm.SortUtil; BQ#jwu0e  
MCAXt1sL&E  
/** B/Ba5z"r$  
* @author treeroot 4Vx+[8W  
* @since 2006-2-2 Bz]J=g7  
* @version 1.0 deM~[1e[  
*/ l @A"U)A(  
public class ImprovedMergeSort implements SortUtil.Sort { MxN]7  
Cj$H[K}>  
private static final int THRESHOLD = 10; 2k3 z'RLG  
WLy7'3@  
/* l%bq2,-%  
* (non-Javadoc) 4qBY% 1  
* f%1wMOzx  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M,L@k  
*/ kv%)K'fU4  
public void sort(int[] data) { U]j&cFbn5_  
int[] temp=new int[data.length]; L{K*~B-p  
mergeSort(data,temp,0,data.length-1); 5V rcR=?O  
} X)NWX9^;'  
s7Qyfe&>  
private void mergeSort(int[] data, int[] temp, int l, int r) { XbXgU#%  
int i, j, k; mdt ?:F4Q  
int mid = (l + r) / 2; s'AQUUrb <  
if (l == r) G,/Gq+WX  
return; n% U9iwJ.  
if ((mid - l) >= THRESHOLD) cqHw^{'8  
mergeSort(data, temp, l, mid); 9T]va]w?#  
else 2q|_Dma  
insertSort(data, l, mid - l + 1); <mn-=#)  
if ((r - mid) > THRESHOLD) "9 u-lcQ\  
mergeSort(data, temp, mid + 1, r); 1YFAr}M  
else ty9rH=1  
insertSort(data, mid + 1, r - mid); A<;0L . J  
eAU"fu6d  
for (i = l; i <= mid; i++) { _AAx )  
temp = data; >T(M0Tkt  
} ],$6&Cm  
for (j = 1; j <= r - mid; j++) { (S3jZ  
temp[r - j + 1] = data[j + mid]; i~ROQMN1  
} SUSc  
int a = temp[l]; TLX^~W[gOm  
int b = temp[r]; KdS eCeddW  
for (i = l, j = r, k = l; k <= r; k++) { d[yrNB6|  
if (a < b) { @<VG8{  
data[k] = temp[i++]; [gTQ-  
a = temp; _RgxKp/d  
} else { 0\QYf0o   
data[k] = temp[j--]; |@OJ~5H/{  
b = temp[j]; O&F< oM  
} a{5H33JA  
} kzW\z4f  
}  \8 g.  
1k0^6gE|  
/** xqU^I5Z  
* @param data -fhAtxkg  
* @param l 'wegipK~R  
* @param i QZqp F9Eu  
*/ ZyZl\\8U  
private void insertSort(int[] data, int start, int len) { W&WB@)ie  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); S|s3}]g9  
} }#YIl@E  
} %+/f'6kR  
} xAFek;GY?  
} fYv ;TV>73  
I4A ;  
堆排序: !2/l9SUi  
1w(<0Be  
package org.rut.util.algorithm.support; =lYvj  
UU*0dSWr  
import org.rut.util.algorithm.SortUtil; tbL1g{Dz,  
X9p+a,  
/** aA7S'[NjB  
* @author treeroot 5ENov!$H  
* @since 2006-2-2 N+ak[axN  
* @version 1.0 y-D>xV)n  
*/ F%w\D9+P  
public class HeapSort implements SortUtil.Sort{ 6(!,H<bON  
j*zB { s K  
/* (non-Javadoc) c-? Ygr  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) l!xgtP K  
*/ bEBZ!ghU  
public void sort(int[] data) { /5Gnb.zN)  
MaxHeap h=new MaxHeap(); $%lHj+(  
h.init(data); {mKpD  
for(int i=0;i h.remove(); *Cc$eR]-  
System.arraycopy(h.queue,1,data,0,data.length); qpH j4  
} j 8~Gv=(h  
/DgT1^&0  
private static class MaxHeap{ (gs`=H*d;  
_N[^Hl`\  
void init(int[] data){ o{s4.LKK  
this.queue=new int[data.length+1]; W\d0  
for(int i=0;i queue[++size]=data; ^XjvJa  
fixUp(size); j@kRv@  
} 0j-F6a*p'1  
} VQZT.^  
bQ${8ZO  
private int size=0; Udb0&Y1^  
7lnM|nD  
private int[] queue; o.v,n1Nm  
Q*TQ*J7".X  
public int get() { ]~4}(\u  
return queue[1]; 0TuNA\Ug+  
} $~;6hnr m  
_R>s5|_  
public void remove() { ?STI8AdO  
SortUtil.swap(queue,1,size--); fSgGQ D4  
fixDown(1); IJL^dXCu  
} [kU[}FT  
file://fixdown 7KYF16A4  
private void fixDown(int k) { uWM4O@Qn)d  
int j; g[uE@Gaj&  
while ((j = k << 1) <= size) { x<)!$cg  
if (j < size %26amp;%26amp; queue[j] j++; ?CL z@u~  
if (queue[k]>queue[j]) file://不用交换 _&8KB1~  
break; -NI@xJO4(;  
SortUtil.swap(queue,j,k); &**.naSo  
k = j; i&AXPq>`  
} exa}dh/uC  
} j[Hg]  
private void fixUp(int k) { DVeF(Y3&  
while (k > 1) { @Reh?]# v  
int j = k >> 1; $P1d#;rb%  
if (queue[j]>queue[k]) -v/?>  
break; AmrJ_YP/t~  
SortUtil.swap(queue,j,k); 3oNt]2w/'  
k = j; {/,+_E/  
} wE.@0  
} noD7G2o  
Tk2&{S"  
} 8tB{rK,  
NR@SDW  
} Xj(k(>7V  
LT y@6*  
SortUtil: [jG uO%  
_3g %F  
package org.rut.util.algorithm; ir1RAmt%  
Jq=>H@il  
import org.rut.util.algorithm.support.BubbleSort; Qcy+ {j]  
import org.rut.util.algorithm.support.HeapSort; ;_;H(%uY  
import org.rut.util.algorithm.support.ImprovedMergeSort; jw6ng>9  
import org.rut.util.algorithm.support.ImprovedQuickSort; j2C^1:s@m  
import org.rut.util.algorithm.support.InsertSort; ^{:[^$f:l  
import org.rut.util.algorithm.support.MergeSort; aNh1e^j  
import org.rut.util.algorithm.support.QuickSort; <jg wdbT"6  
import org.rut.util.algorithm.support.SelectionSort; jAK`96+D~b  
import org.rut.util.algorithm.support.ShellSort; \)s 3]/"7  
yp7,^l  
/** Phjf$\pt  
* @author treeroot |7 W6I$Xl  
* @since 2006-2-2 >O[^\H!\  
* @version 1.0 V0wC@?  
*/ .(.G`aKnF  
public class SortUtil { gP"Mu#/D  
public final static int INSERT = 1; ABS BtH ?  
public final static int BUBBLE = 2; 34&$_0zn  
public final static int SELECTION = 3; '@1Qx~*]e  
public final static int SHELL = 4; WLA_YMlA  
public final static int QUICK = 5; RdpQJ)3F  
public final static int IMPROVED_QUICK = 6; 19.!$;  
public final static int MERGE = 7; ,L;c{[*rh  
public final static int IMPROVED_MERGE = 8; N'W >pU  
public final static int HEAP = 9;  Q-3J0=  
}F9?*2\/  
public static void sort(int[] data) { #)c;i<Q3S  
sort(data, IMPROVED_QUICK); trNK9@wT)  
} -_H2FlB  
private static String[] name={ ?R~Ye  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" yW7S }I  
}; {:q9:  
#'{PY r  
private static Sort[] impl=new Sort[]{ laIC}!  
new InsertSort(), PT5ni6  
new BubbleSort(), fn"jYSy  
new SelectionSort(), E*#60z7F  
new ShellSort(), "NI>HO.U  
new QuickSort(), d4rJ ?qw  
new ImprovedQuickSort(), _}%# Yz  
new MergeSort(), */@bNT9BgO  
new ImprovedMergeSort(), ^IegR>  
new HeapSort() [!|d[  
}; !t [%'!v  
BsG[#4KM:  
public static String toString(int algorithm){ KARQKFp!C>  
return name[algorithm-1]; LZ<( :S  
} ur_"m+  
ry<}DK<u  
public static void sort(int[] data, int algorithm) { Ik2szXh[J  
impl[algorithm-1].sort(data); N4JL.(m){I  
} (VF4]  
C{Xk/Er5<  
public static interface Sort { 70l;**"4  
public void sort(int[] data); Yka yT0!  
} < EE+ S#z  
4%.2 =  
public static void swap(int[] data, int i, int j) { yeh adm\  
int temp = data; k*+ZLrT  
data = data[j]; o+WrIAR  
data[j] = temp; .Af)y_  
} loVvr"&g  
} XzwQ,+IAr  
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