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
  • 8083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。 |XGj97#M  
插入排序: 0pfgE=9  
'?gF9:  
package org.rut.util.algorithm.support; iNO}</7?  
v?Ds|  
import org.rut.util.algorithm.SortUtil; R(t1Ei.-?  
/** "z8iuF  
* @author treeroot FN+x<VXo(  
* @since 2006-2-2 hD*83_S  
* @version 1.0 qpEK36Js  
*/ @A.7`*i_  
public class InsertSort implements SortUtil.Sort{ #qnK nxD  
?S8_x]E  
/* (non-Javadoc) Jc=~BT_G  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7QX p\<7  
*/ f,(@K%  
public void sort(int[] data) { oR@emYL  
int temp; =".sCV9"N  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); O$*\JL  
} xRrKrs&eE  
} Tfytc$aQ  
} 6uu49x_^L4  
j>I.d+   
} -)pVgf  
j e;^i,&  
冒泡排序: } Q1m  
ugy:^U  
package org.rut.util.algorithm.support; cT.8&EEW  
sUl _W"aQ  
import org.rut.util.algorithm.SortUtil; Z,QSbw@,7  
 QUb#84  
/** Ir?ehA  
* @author treeroot /ReOf<%B  
* @since 2006-2-2 ']^_W0?=  
* @version 1.0 cs-dvpMZ  
*/ 3bK=Q3N  
public class BubbleSort implements SortUtil.Sort{ 2tMa4L%@C  
0ZJN<AzbA  
/* (non-Javadoc) aSM S uX8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `]$H\gNI[8  
*/ WW3! ,ln_  
public void sort(int[] data) { xN>+!&3%w  
int temp; =|O><O|  
for(int i=0;i for(int j=data.length-1;j>i;j--){ |QO)x En~  
if(data[j] SortUtil.swap(data,j,j-1); 7 : .bqRu  
} ZK?:w^Z  
} b l]YPx8  
} "SFs\] Z  
} :}+m[g  
FZ@8&T   
} r Cn"{.rI  
IEQ6J}L  
选择排序: +l@+e_>  
40Z/;,wp{  
package org.rut.util.algorithm.support; 39Zs  
q,fk@GI'2  
import org.rut.util.algorithm.SortUtil; c 6$n:  
eSA%:Is.  
/** .9u,54t  
* @author treeroot aj6{  
* @since 2006-2-2 gt:Ot0\7  
* @version 1.0 TM$Ek^fQ.  
*/ yL%k5cO$N  
public class SelectionSort implements SortUtil.Sort { S$%Y{  
("rIz8b  
/* 8+U':xR  
* (non-Javadoc) qkh.? ~  
* [0-zJy|,  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) VkDFR [k_  
*/ *EzAo  
public void sort(int[] data) { J6*B=PX=(  
int temp; K)n0?Q_>  
for (int i = 0; i < data.length; i++) { ey3;rY1  
int lowIndex = i; J"O#w BM9  
for (int j = data.length - 1; j > i; j--) { ,O}2LaK.O  
if (data[j] < data[lowIndex]) { * S>,5R0k  
lowIndex = j; MB] Y|Vee  
} uH?lj&  
} "yV)&4 )  
SortUtil.swap(data,i,lowIndex); z0m[25FQG  
} OJ\rT.{  
} j])nkm7_  
?G>#'T[  
} R WU,v{I9  
hhvP*a_J  
Shell排序: c&T14!lfn  
-?AaRwZ,  
package org.rut.util.algorithm.support; 59I}  
5cE!'3Y  
import org.rut.util.algorithm.SortUtil; y:zo/#34  
^. i;,  
/** pd{;`EW|  
* @author treeroot H9Pe,eHs  
* @since 2006-2-2 (B zf~#]~  
* @version 1.0 L5*,l`lET  
*/ WsCzC_'j.  
public class ShellSort implements SortUtil.Sort{ ,`JXBI~  
+/Lf4??JV  
/* (non-Javadoc) Eh)VU_D  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <#9zc'ED:  
*/ ?ixzlDto\  
public void sort(int[] data) { r,4V SyZF\  
for(int i=data.length/2;i>2;i/=2){ *X^__PS]  
for(int j=0;j insertSort(data,j,i); &sx|sLw)  
} Px4 zI9;cB  
} ]41G!'E=  
insertSort(data,0,1); B&m?3w  
} :6z0Ep"  
/m;w~ -N  
/** 0OMyE9jJJ  
* @param data | We @p  
* @param j yf=ek= =  
* @param i GZc%*  
*/ >gr6H1  
private void insertSort(int[] data, int start, int inc) { /j' We-C  
int temp; -7" >A~c  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); V_(?mC  
} t@/r1u|iq  
} ):+H`Hcm  
} g-%uw[pf  
V]PTAhc  
} *qG=p`  
"7 )F";_(^  
快速排序: 1{"fmV  
_V{WXsOx(  
package org.rut.util.algorithm.support; %'* |N [  
{F k]X#j  
import org.rut.util.algorithm.SortUtil; ^%d+nKx9nL  
xsFWF*HPs  
/** ?V[yw=sl04  
* @author treeroot nL+*Ja  
* @since 2006-2-2 |<ke>j/6n  
* @version 1.0 eOn,`B1  
*/ oqDW}>.  
public class QuickSort implements SortUtil.Sort{ u(ZS sftat  
q{7s.m >  
/* (non-Javadoc) 66'TdF]"  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @-b}iP<T  
*/ :M3l#`4Q  
public void sort(int[] data) { 4g1u9Sc0  
quickSort(data,0,data.length-1); u'K<-U8H  
} &9s6p6 eb  
private void quickSort(int[] data,int i,int j){ C [2tH2*#  
int pivotIndex=(i+j)/2; Y\p yl  
file://swap TTE#7\K~B  
SortUtil.swap(data,pivotIndex,j); Zc9 n0t[  
7FDraEr#f  
int k=partition(data,i-1,j,data[j]); 1|gP :t}  
SortUtil.swap(data,k,j); syZ-xE]}  
if((k-i)>1) quickSort(data,i,k-1); e-}PJ%!,T  
if((j-k)>1) quickSort(data,k+1,j); RycEM|51V  
(`!| Uf$  
} ~4`wfOvO  
/** #Y18z5vo  
* @param data ~!A,I 9  
* @param i @6D<D6`  
* @param j XbH X,W$h  
* @return d,QJf\fc"  
*/ ZY/at/v  
private int partition(int[] data, int l, int r,int pivot) { 56bB~ =c  
do{ v}_$9&|S  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); s{q2C}=$?D  
SortUtil.swap(data,l,r); @W @L%<  
} nlmkkTHF8  
while(l SortUtil.swap(data,l,r); T]vD ,I+  
return l; *Cb(4h-  
} _?r+SRFn  
by06!-P0[  
} ~b7Nzzfo  
W"Rii]GK"  
改进后的快速排序: e+6~JbMV  
'QV 4 =h`  
package org.rut.util.algorithm.support; 7]v-2 *  
q(r2\  
import org.rut.util.algorithm.SortUtil; 8p211MQ<  
Rxli;blzi  
/** rb_G0/R  
* @author treeroot -Qgfo|po  
* @since 2006-2-2 n)=&=Uj`f  
* @version 1.0 S77Gc:[;8  
*/ @KpzxcEoO  
public class ImprovedQuickSort implements SortUtil.Sort { };+s0:H  
*@ o3{0[Z  
private static int MAX_STACK_SIZE=4096; S; c=6@"  
private static int THRESHOLD=10; sooh yK8  
/* (non-Javadoc) 7RLh#D|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?)X@4Jem  
*/ "D k:r/  
public void sort(int[] data) { ZRHTvxf  
int[] stack=new int[MAX_STACK_SIZE]; -?(RoWv@X&  
kp$ILZ  
int top=-1; ES~]rPVS  
int pivot; 1)R)+`y  
int pivotIndex,l,r; C[pDPx,#:G  
+?<jSmGW  
stack[++top]=0; %G@aZWk Sa  
stack[++top]=data.length-1; 8vRiVJ8QS:  
m\>x_:sE  
while(top>0){ |<V{$),k  
int j=stack[top--]; fkG8,=  
int i=stack[top--]; w-"&;klV  
;H=6u  
pivotIndex=(i+j)/2; G#V22Wca8  
pivot=data[pivotIndex]; 3u^TJt)  
} :mI6zsNj  
SortUtil.swap(data,pivotIndex,j); 7S`H?},sR  
h$&XQq0T  
file://partition kC0!`$<2f)  
l=i-1; M($},xAvDU  
r=j; M<)2  
do{ [jw o D  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 0o]K6 b  
SortUtil.swap(data,l,r); #r:`bQ0;  
} +Xp;T`,v  
while(l SortUtil.swap(data,l,r); hLvv:C@  
SortUtil.swap(data,l,j); =/;_7|ssd  
K9q~Vf  
if((l-i)>THRESHOLD){ ie!4z34  
stack[++top]=i; 9zyN8v2  
stack[++top]=l-1; #+;=ijyF  
} .{ -yveE  
if((j-l)>THRESHOLD){ O5Lv :qAa  
stack[++top]=l+1; WFd2_oAT  
stack[++top]=j; ;$QJnQ"R  
} *eP4dGe&  
 vt N5{C  
} >{S$0D  
file://new InsertSort().sort(data); ^H4i Hjg  
insertSort(data); c)8wO=!  
} wM)w[  
/** u-_$?'l;~  
* @param data )US/bC!M$  
*/ -G;1U  
private void insertSort(int[] data) { i!3KG|V  
int temp; ]3xa{ h~4  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); M 9#QS`G  
} {*<C!Qg  
} `5Btg. &  
} q4i8Sp>  
GZEonCk[&  
} 0*?XQV@  
<o+ 7U  
归并排序: noA\5&hqW  
lM,zTNu-z  
package org.rut.util.algorithm.support; \&5@yh  
\`&pk-uW  
import org.rut.util.algorithm.SortUtil; ^P/D8cXa4  
{*;]I?9Al  
/** rR@n> Xx  
* @author treeroot "t:.mA<v  
* @since 2006-2-2 Hi_Al,j:  
* @version 1.0 1fW4=pF-K  
*/ !rg0U<bO!  
public class MergeSort implements SortUtil.Sort{ V6MT>T  
9+I/y,aC  
/* (non-Javadoc) U;{,lS2l  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^70.g?(f[  
*/ i?>> 9f@F  
public void sort(int[] data) { z<6P3x|  
int[] temp=new int[data.length]; 5 ?~-Vv31s  
mergeSort(data,temp,0,data.length-1); =jIT"rk  
} sNfb %r  
X/-KkC  
private void mergeSort(int[] data,int[] temp,int l,int r){ 0ITA3v8{  
int mid=(l+r)/2; NzAtdcwR  
if(l==r) return ; n,jE#Z.D  
mergeSort(data,temp,l,mid); LnTe_Q7_  
mergeSort(data,temp,mid+1,r); 7G[ GHc>  
for(int i=l;i<=r;i++){ /;nO<X:XV  
temp=data; ru/zLj:  
} ;D"P9b]9$  
int i1=l; Da8$Is;n  
int i2=mid+1; R%N#G<^R  
for(int cur=l;cur<=r;cur++){ Ag#5.,B-  
if(i1==mid+1) CDW(qq-zD  
data[cur]=temp[i2++]; 'RV\}gqZ  
else if(i2>r) ).+xcv   
data[cur]=temp[i1++]; k]$E8[.t  
else if(temp[i1] data[cur]=temp[i1++]; "UoCT7X  
else r,.95@  
data[cur]=temp[i2++]; a&s"# j  
} }8V;s-1  
} x-V' 0-#U>  
^dUfTG9{  
} fteyG$-s  
m>uI\OY{n  
改进后的归并排序: _N,KHxsG8B  
U.pr} hq  
package org.rut.util.algorithm.support; &Qq/Xi,bZ  
;sL6#Go?V  
import org.rut.util.algorithm.SortUtil; Sa[EnC  
"`jZ(+  
/** N t>HztXd  
* @author treeroot G{:af:5Fo  
* @since 2006-2-2 v;bM.OL  
* @version 1.0 1RI#kti-"  
*/ \9>g;qPg}  
public class ImprovedMergeSort implements SortUtil.Sort { o^_W$4Fc  
XgiI6-B~  
private static final int THRESHOLD = 10; 3d#9Wyxs  
"lU]tIpCu  
/* OP|.I._I  
* (non-Javadoc) iC\rhHKQ  
* KM_)7?`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Gh$y#0qr  
*/ L_ Xn,  
public void sort(int[] data) { ]s*[Lib  
int[] temp=new int[data.length]; ~51kiQW  
mergeSort(data,temp,0,data.length-1); A{i][1N  
} Imh2~rw;  
{hs2?#p  
private void mergeSort(int[] data, int[] temp, int l, int r) { Io,/ +#|  
int i, j, k; =e-a&Ep-z  
int mid = (l + r) / 2; H#kAm!H  
if (l == r) u:AfHZ  
return; HC9vc,Fp  
if ((mid - l) >= THRESHOLD) x%IXwP0  
mergeSort(data, temp, l, mid); k Z+q  
else @wYQLZ  
insertSort(data, l, mid - l + 1); _ bXVg3oDt  
if ((r - mid) > THRESHOLD) +?"HTDBE||  
mergeSort(data, temp, mid + 1, r); ~>N`<S   
else .*RB~c t  
insertSort(data, mid + 1, r - mid); nJldz;  
j{Yt70Wv  
for (i = l; i <= mid; i++) { r+[#%%}ea  
temp = data; DU/9/ I?~  
} c]s (u+i  
for (j = 1; j <= r - mid; j++) { 5(iSOsb  
temp[r - j + 1] = data[j + mid]; f"Z qA'KB#  
} K)Df}fVOc  
int a = temp[l]; *tTP8ZCQ[  
int b = temp[r]; r!=]Q}`F  
for (i = l, j = r, k = l; k <= r; k++) { p~Yy"Ec;p  
if (a < b) { Vr&el  
data[k] = temp[i++]; 3JlC/v#0  
a = temp; P;)2*:--)  
} else { G zJ9N`  
data[k] = temp[j--]; }"%!(rx  
b = temp[j]; /32Ta  
} Kf:2%_DB  
} L<f-Ed9|  
} yM(_P0  
D:YN_J"kV  
/** Ap F*a$),  
* @param data \b_-mnN"  
* @param l 7%:??*"~  
* @param i jHkyF`<+  
*/ S KB@  
private void insertSort(int[] data, int start, int len) { v?Z'[l  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); x\Nhix}1D  
} g)=V#Bglv  
} &q ," !:L]  
} 0=N4O!X9  
} HO 266M  
ucQezmie  
堆排序: J>f /u:.  
YYTO,4  
package org.rut.util.algorithm.support; ]}nu9z<  
4ggVj*{v  
import org.rut.util.algorithm.SortUtil; S[-.tvI;Q  
2. StG(Y!  
/** ggrI>vaw  
* @author treeroot C$KaT3I  
* @since 2006-2-2  )v${&H  
* @version 1.0 euRCBzc  
*/ Tx y]"_  
public class HeapSort implements SortUtil.Sort{ \1=T sU&^  
D"`%|`O  
/* (non-Javadoc) .[edln  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5|yZEwq  
*/ LTg?5GwD\j  
public void sort(int[] data) { <2n'}&F  
MaxHeap h=new MaxHeap(); &(lMm)  
h.init(data); Q<z)q<e  
for(int i=0;i h.remove(); ^bF}_CSE  
System.arraycopy(h.queue,1,data,0,data.length); 08`f7[JQo]  
} ]MC/t5vCu  
=ft9T&ciD  
private static class MaxHeap{ }phz7N9  
BfX%|CWh  
void init(int[] data){ YavfjS:2  
this.queue=new int[data.length+1]; ^/G?QR  
for(int i=0;i queue[++size]=data; gs$3)t  
fixUp(size); jjxIS  
} eT;AAGql  
} [fd~nD#.  
*hV4[=  
private int size=0; OMl8 a B9  
fwRGT|":B  
private int[] queue; LOe4c0C6Ca  
#g,H("Qy({  
public int get() { $Xf~# uH  
return queue[1]; SO7(K5H,  
} P<8LAc$T  
O2C6V>Q;  
public void remove() { L+_8QK<  
SortUtil.swap(queue,1,size--); bC6X?m=  
fixDown(1); g .3f2w  
} aWdUuid  
file://fixdown Pv#KmSA9  
private void fixDown(int k) { eDuX"/kHA  
int j; P1$f}K}  
while ((j = k << 1) <= size) { JL@F~U9  
if (j < size %26amp;%26amp; queue[j] j++; "@(58nk  
if (queue[k]>queue[j]) file://不用交换 ~'(9?81d  
break; 0xv\D0  
SortUtil.swap(queue,j,k); (WJV.GcP1  
k = j; 5qGGu.$Ihi  
} {K+.A 9!  
} !TGr.R  
private void fixUp(int k) { \{lE0j7}h  
while (k > 1) { %z=`JhE"Q  
int j = k >> 1; <8$Md4r  
if (queue[j]>queue[k]) Kf|0*c  
break; 5H~@^!7t  
SortUtil.swap(queue,j,k); hUBF/4s\  
k = j; $khrWiX  
} |l$ u<3  
} QJQJR/g  
#o~[1K+Yq  
} A^8x1ydZ  
JXL'\De ;  
} nVNs][  
,|A{!j`  
SortUtil: c+H)ed>  
G<|:605  
package org.rut.util.algorithm; Q~8y4=|#CY  
_O LI%o  
import org.rut.util.algorithm.support.BubbleSort; f P+QxOz  
import org.rut.util.algorithm.support.HeapSort; Y^yG/F  
import org.rut.util.algorithm.support.ImprovedMergeSort; ),yH=6  
import org.rut.util.algorithm.support.ImprovedQuickSort; 5 1"8Py  
import org.rut.util.algorithm.support.InsertSort; l`* ( f9Q  
import org.rut.util.algorithm.support.MergeSort; b1 H7  
import org.rut.util.algorithm.support.QuickSort; !KAsvF,j  
import org.rut.util.algorithm.support.SelectionSort;  UPR/XQ  
import org.rut.util.algorithm.support.ShellSort; Ep<YCSQy$i  
.5 ]{M\aA  
/** A=0@UqM  
* @author treeroot {-J:4*`  
* @since 2006-2-2 fwy"w  
* @version 1.0 *CzCUu:%t  
*/ U[bgu#P;  
public class SortUtil { g [AA,@p+  
public final static int INSERT = 1; Rh[Ibm56  
public final static int BUBBLE = 2; /e .D /;]  
public final static int SELECTION = 3; QTfu:m{  
public final static int SHELL = 4; =E!x~S;N  
public final static int QUICK = 5; ETe-  
public final static int IMPROVED_QUICK = 6; k},>^qE  
public final static int MERGE = 7; .x>HA^4  
public final static int IMPROVED_MERGE = 8; !:dL~n  
public final static int HEAP = 9; Ajg\aof0{  
IyOpju)?  
public static void sort(int[] data) { rtus`A5p  
sort(data, IMPROVED_QUICK); yZ5 x8 8>  
} |UYED%dC  
private static String[] name={ oE6|Zw  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" VjY<\WqbS  
}; 8ZW?|-i  
"9%q bM B  
private static Sort[] impl=new Sort[]{ "Tv:*L5  
new InsertSort(), o(zTNk5d  
new BubbleSort(), 8?kP*tmcZ  
new SelectionSort(), b[yE~EQxr  
new ShellSort(), jFG5)t<D  
new QuickSort(), l=xt;c!  
new ImprovedQuickSort(), X>{p}vtvf>  
new MergeSort(), R3Ee%0QK  
new ImprovedMergeSort(), K?[)E3  
new HeapSort() G0pBR]_5z$  
}; -,|ha>r  
gvGi %gq  
public static String toString(int algorithm){ -~\f2'Q  
return name[algorithm-1]; M!#AfIyB  
} <XvYa{t]{  
yhwy>12,K  
public static void sort(int[] data, int algorithm) { /p 5=i  
impl[algorithm-1].sort(data); ;:T9IL  
} K#wK1 Sv  
/BT1oWi1y  
public static interface Sort { rn H}#u+  
public void sort(int[] data); `36N n+A  
} R^6Zafp  
2f^-~dz  
public static void swap(int[] data, int i, int j) { *i@T!O(1)M  
int temp = data; 1 }nm2h1 I  
data = data[j]; \lW_f{X)  
data[j] = temp; :~D]; m  
} 8%-%AWF]  
} ;_N"Fdl  
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