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
  • 4971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。 p{q!jm~Nq  
插入排序: c1kxKxE  
UglG!1L  
package org.rut.util.algorithm.support; A&c@8  
]TgP!M&q  
import org.rut.util.algorithm.SortUtil; O}_a3>1DY  
/** UMuuf6  
* @author treeroot EWIc|b:  
* @since 2006-2-2 3]<re{)J9O  
* @version 1.0 *frJ^ Ws{  
*/ liqR#<  
public class InsertSort implements SortUtil.Sort{ iN_D8dI  
=5~F6to  
/* (non-Javadoc) M~Qj'VVL  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |90 +)/$4  
*/ =kh>s$We  
public void sort(int[] data) { >:E* 7  
int temp; ]<T8ZA_Y;  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); +'/}[1q1/T  
} (\t_Hs::a  
} 12sD|j  
} Hpi%9SAM  
`n`"g<K)Q  
} eQFb$C]R}y  
7TkxvSL X  
冒泡排序: vM7vf6  
;Q=GJ5`B  
package org.rut.util.algorithm.support; {M r~%y4  
}l( m5  
import org.rut.util.algorithm.SortUtil; i9eyrl+!  
u'i%~(:$\)  
/** LkGf|yd_  
* @author treeroot s!ZW'`4!z  
* @since 2006-2-2 :e]9T3Q  
* @version 1.0 wB>S\~i  
*/ 0[:9 Hb6  
public class BubbleSort implements SortUtil.Sort{ Ae j   
7grt4k  
/* (non-Javadoc) b"nG-0JR  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  (X(1kj3  
*/ T5S g2a1&  
public void sort(int[] data) { dHG  Io  
int temp; 8b:clvh  
for(int i=0;i for(int j=data.length-1;j>i;j--){ 6 W;?8Z_1  
if(data[j] SortUtil.swap(data,j,j-1); bugFl>  
} %,,`N I{  
} ;wXY3|@  
} p x|>v8  
} 1Vf78n  
+K;Y+ K&;2  
} X#DL/#z k  
N pXgyD  
选择排序: wfDp,T3w7  
_t|G@D{   
package org.rut.util.algorithm.support; R6q4 ["  
z0 2}&^Zzk  
import org.rut.util.algorithm.SortUtil; /&$"}Z6z  
:YqQlr\  
/** ^+*GbY$'  
* @author treeroot hB?,7-  
* @since 2006-2-2 VJN/#   
* @version 1.0 O:;OR'N9  
*/ -4e) N*VVu  
public class SelectionSort implements SortUtil.Sort { g={]Mzh  
N&fW9s}  
/* *O+R|Cdp/  
* (non-Javadoc) >; &s['H  
* PNbcy!\U  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #9D/jYK1X  
*/ . QXG"R  
public void sort(int[] data) { > 'aG /(  
int temp; & =73D1A  
for (int i = 0; i < data.length; i++) { X<~k =qwA  
int lowIndex = i; 7-".!M  
for (int j = data.length - 1; j > i; j--) { 6[*;M  
if (data[j] < data[lowIndex]) { 4[TS4p  
lowIndex = j; VyecTU"W  
} C5es2!^-]O  
} K/vxzHSl  
SortUtil.swap(data,i,lowIndex); 894r;UA7  
} q Vm"f,ruo  
} 4D^ M<Xn  
=`qRu  
} x0\e<x9s  
-uA3Y  
Shell排序: Z}8k[*.  
]By0Xifew  
package org.rut.util.algorithm.support; M*5,O   
`]`=]*d  
import org.rut.util.algorithm.SortUtil; M=5d95*-}  
=U4f}W;  
/** Nfv="t9e  
* @author treeroot K,f* SXM  
* @since 2006-2-2 \G$QNUU  
* @version 1.0 @[MO,J&h  
*/ +"cRhVR  
public class ShellSort implements SortUtil.Sort{ + a-wv  
#K=b%;>  
/* (non-Javadoc) 7hB#x]oQo  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 59{;VY81  
*/ >u=%Lz"J  
public void sort(int[] data) { h6u2j p(+  
for(int i=data.length/2;i>2;i/=2){ `"a? a5]k  
for(int j=0;j insertSort(data,j,i); 8P,l>HA  
} !1a}| !Zn  
} R'6@n#:  
insertSort(data,0,1); j4;Du>obQ  
} 2E^"r jLm  
tm(v~L%$>]  
/** JY{X,?s  
* @param data tg~A}1o`0  
* @param j 7\IL  
* @param i j~Q}F|i8  
*/ VmN}FMGN  
private void insertSort(int[] data, int start, int inc) { DH5bpg&T  
int temp; b,#`n  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 8y$5oD6g9  
} m</]D WJ  
} }>2t&+v+  
} gaQ[3g  
NW z9C=y  
} N 0+hejz  
b -PSm=`  
快速排序: j!YNg*H  
O!;H}{[dg  
package org.rut.util.algorithm.support; r0>q%eM8  
zhNQuK,L  
import org.rut.util.algorithm.SortUtil; ?-e7e %  
SOVj Eo4'3  
/** >Q; g0\I_  
* @author treeroot wHx}U M"  
* @since 2006-2-2 :^ n*V6.4  
* @version 1.0 YWEYHr;%^?  
*/ 6`acg'sk>  
public class QuickSort implements SortUtil.Sort{ :-z&Y492  
K[kds`  
/* (non-Javadoc) a$d:_,\ "  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) G.E[6G3  
*/ 7 0_}S*T  
public void sort(int[] data) { Y?<)Dg.[  
quickSort(data,0,data.length-1); Gb;99mE  
} z&O#v9.NE|  
private void quickSort(int[] data,int i,int j){ \.o=icOx  
int pivotIndex=(i+j)/2; )1WMlG  
file://swap ".gNeY6)x  
SortUtil.swap(data,pivotIndex,j); 4Rx~s7l  
6Lb{r4^  
int k=partition(data,i-1,j,data[j]); Uo~T'mA"  
SortUtil.swap(data,k,j); z<!O!wX_aI  
if((k-i)>1) quickSort(data,i,k-1); >Iuzk1'S  
if((j-k)>1) quickSort(data,k+1,j); {@3z\wMK$  
vd`O aM}#U  
} PSPTL3_~  
/** @Tm`d ?^  
* @param data RT,:hH  
* @param i a"x}b  
* @param j bl=ku<}@  
* @return GMl"{ Oxo&  
*/ H<g 1m  
private int partition(int[] data, int l, int r,int pivot) { FQ`(b3.   
do{ }`9jH:q-Z  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ?ty>}.c t  
SortUtil.swap(data,l,r); >z(wf>2J  
} 'r\ 4}Ik  
while(l SortUtil.swap(data,l,r); 1w`2Dt  
return l; LT/mb2  
} S#tY@h@XV  
6ZcXS  
} oe9lF*$/  
Hfh!l2P  
改进后的快速排序: fN@{y+6  
pe.Ml7o"  
package org.rut.util.algorithm.support; u"`*DFjo*  
AotCX7T2T  
import org.rut.util.algorithm.SortUtil; #.H}r6jqs  
X3<K 1/<  
/** P;73Hr[E#  
* @author treeroot h$>wv`  
* @since 2006-2-2 PQ$sOK|/  
* @version 1.0 J/ vK6cO\  
*/ nq1 'F  
public class ImprovedQuickSort implements SortUtil.Sort { 7tRi"\[5  
<YH=3[  
private static int MAX_STACK_SIZE=4096; HJIC<U  
private static int THRESHOLD=10; \|.7-X  
/* (non-Javadoc) Tg0CE60"  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) yrnv!moc%t  
*/ `rlk|&T1  
public void sort(int[] data) { vy [C'a  
int[] stack=new int[MAX_STACK_SIZE]; A|L'ih/  
+>SRrIi  
int top=-1; V^TbP.  
int pivot; Ird|C[la  
int pivotIndex,l,r; 2s\BY%XY  
/,2rjJ#b  
stack[++top]=0; D/CIA8h3  
stack[++top]=data.length-1; iG#}`  
kJT+  
while(top>0){ i7w(S3a  
int j=stack[top--]; Qs%B'9")  
int i=stack[top--]; B2Z_]q$n*  
rOcg+5  
pivotIndex=(i+j)/2; Y]Vq\]m\  
pivot=data[pivotIndex]; BRzfic :e  
0J9D"3T)  
SortUtil.swap(data,pivotIndex,j); \vRd}   
]A^4}CK^<  
file://partition "hQgLG  
l=i-1; #$E)b:xj  
r=j; jo9gCP.  
do{ v+xB7w  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); '#.#$8l  
SortUtil.swap(data,l,r); "g0(I8  
} 0 ipN8Pg+  
while(l SortUtil.swap(data,l,r); Hr^3`@}#1  
SortUtil.swap(data,l,j); hr/o<#OW  
r|eZv<6  
if((l-i)>THRESHOLD){ @kxel`,$e  
stack[++top]=i; IeP WOpj3  
stack[++top]=l-1; TB!(('  
} T^:fn-S}=  
if((j-l)>THRESHOLD){ 4CrLkr  
stack[++top]=l+1; p*20-!{A  
stack[++top]=j; !q' 4D!I  
} <%P2qgz5  
D +RiM~LH8  
} xr%#dVk  
file://new InsertSort().sort(data); Ln!A:dP}c-  
insertSort(data); [9o4hw  
} G^;>8r  
/** 5T?-zFMM  
* @param data fuMJdAuY7d  
*/ Pw[g  
private void insertSort(int[] data) { !)pdamdA  
int temp; O9"/ kmB  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); k~.&j"K  
} [{ ~TcT  
} 'e!J06  
} ; )Eo7?]-  
F_H82BE+3  
} S1S;F9F  
A/}W&bnluD  
归并排序: yZ kyC'/  
S/tIwG ~e3  
package org.rut.util.algorithm.support; Ig6T g ?  
. (}1%22  
import org.rut.util.algorithm.SortUtil; /.z;\=;[n!  
i'#Gy,R  
/** 4 %W:  
* @author treeroot )]htm&q5  
* @since 2006-2-2 yuhnYR\`m  
* @version 1.0 ~*W!mlg  
*/ SF*n1V3hx  
public class MergeSort implements SortUtil.Sort{ 3W_PE+:Kr  
2RM+W2!!  
/* (non-Javadoc) _iV]_\0W2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .2) =vf'd  
*/ 04U")-\O  
public void sort(int[] data) { N<(.%<!  
int[] temp=new int[data.length]; tjT>VwqH  
mergeSort(data,temp,0,data.length-1); /Q{P3:k  
} ;j8 )KC  
3?n>yS  
private void mergeSort(int[] data,int[] temp,int l,int r){ oXXC@[??}N  
int mid=(l+r)/2; 2*iIjw3g  
if(l==r) return ; $*R/tJ.  
mergeSort(data,temp,l,mid); {0"YOS`3AX  
mergeSort(data,temp,mid+1,r); *%/~mSx  
for(int i=l;i<=r;i++){ ^-z=`>SrS"  
temp=data; W ~f(::  
} H<EQu|f&x  
int i1=l; k%]=!5F  
int i2=mid+1; GL{57  
for(int cur=l;cur<=r;cur++){ /3B $(  
if(i1==mid+1) re?s.djT  
data[cur]=temp[i2++]; ~{,X3-S_H  
else if(i2>r) 6/V3.UP-  
data[cur]=temp[i1++]; y: m_tv0~0  
else if(temp[i1] data[cur]=temp[i1++]; e]=lKxFh&l  
else a ^d8I  
data[cur]=temp[i2++]; : j }fC8'  
} zOgTQs"ZH  
} 03E4cYxt5  
4k-+?L!/G  
} YjOs}TD lx  
>9e(.6&2XZ  
改进后的归并排序: 29CINC  
u VyGk~  
package org.rut.util.algorithm.support; 2owEw*5jl/  
K"j_>63)  
import org.rut.util.algorithm.SortUtil; VA *y|Q6  
sm[94,26  
/** 'R`tLN  
* @author treeroot z4M9M7)"  
* @since 2006-2-2 ?;/^Ya1;Z  
* @version 1.0 $Iv2j">3)  
*/ W"^wnGa@a  
public class ImprovedMergeSort implements SortUtil.Sort { a<}#HfC;'  
]0hrRA`  
private static final int THRESHOLD = 10; Mj[f~  
JR CrZW}  
/* <S?ddp2  
* (non-Javadoc) < -W*$?^  
* MUfG?r\t  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q'_z<V  
*/ `\Hf]b  
public void sort(int[] data) { A+hT3;lp  
int[] temp=new int[data.length]; (jU6GJRP  
mergeSort(data,temp,0,data.length-1); 0c K{  
} E|'h]NY  
J+d1&Tw&  
private void mergeSort(int[] data, int[] temp, int l, int r) { =] *.ZH#h  
int i, j, k; mU}F!J#6  
int mid = (l + r) / 2; 4jD2FFG- G  
if (l == r) {43>m)8+  
return; Y%`xDI  
if ((mid - l) >= THRESHOLD) b[V^86X^  
mergeSort(data, temp, l, mid); A\8}|r(>9E  
else K2%w0ohC  
insertSort(data, l, mid - l + 1); ,^#yo6-  
if ((r - mid) > THRESHOLD) KM^ufF2[  
mergeSort(data, temp, mid + 1, r); y~()|L[  
else ")=X4]D  
insertSort(data, mid + 1, r - mid); P#=`2a#G  
8 r_>t2$  
for (i = l; i <= mid; i++) { Aq3}Ng  
temp = data; 8Q_SRwN  
} >jD[X5Y  
for (j = 1; j <= r - mid; j++) { 4Y[1aQ(%  
temp[r - j + 1] = data[j + mid]; Y>'|oygHA  
} cM&{+el  
int a = temp[l]; E[Cb|E  
int b = temp[r]; yX~v-N!X  
for (i = l, j = r, k = l; k <= r; k++) { s%<eD  
if (a < b) { [l,Ei?  
data[k] = temp[i++]; 3}e%[AKh  
a = temp; ^o7;c[E`  
} else { M)SEn/T-  
data[k] = temp[j--]; 8#vc(04(  
b = temp[j]; / X1 x  
} _a1x\,R|DB  
} )"pF R4  
} uu`G 2[t  
S~|T4q(  
/** @')[FEdW  
* @param data KEWTBBg  
* @param l >,td(= :  
* @param i hdrm!aBd  
*/ hP15qKy  
private void insertSort(int[] data, int start, int len) { W*2U="t  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); |P%Jw,}]9  
} }sxYxn~  
} thhwN A  
} Dc,I7F|%  
} ~ 0M'7q'  
P-9<YN  
堆排序: %$b:X5$Z  
%f]:I  
package org.rut.util.algorithm.support; <_7*67{  
>3Eo@J,?d  
import org.rut.util.algorithm.SortUtil; AJ=qna  
?"g!  
/** @ta7"6p-i@  
* @author treeroot 13>0OKg`#  
* @since 2006-2-2 UeRj< \"Q  
* @version 1.0 D|{jR~J)xK  
*/ HPZ}*m'  
public class HeapSort implements SortUtil.Sort{ Ftr5k^!  
')$+G152  
/* (non-Javadoc) 4q k9NK2 U  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9g mW&{6q  
*/ !_Wi!Vr_  
public void sort(int[] data) { B8}Nvz /  
MaxHeap h=new MaxHeap(); Q637N|01  
h.init(data); `7r@a  
for(int i=0;i h.remove(); maNl^i  
System.arraycopy(h.queue,1,data,0,data.length); 3qf Ym}d  
} r[*Vqcz  
<_-hRbS  
private static class MaxHeap{ ~Yy>zUH^X  
X"fb;sGT  
void init(int[] data){ 5;YMqUkw  
this.queue=new int[data.length+1]; Ck) * &  
for(int i=0;i queue[++size]=data; H*r)Z 90  
fixUp(size); 4GX-ma,  
}  B\o Mn  
} C)`Fv=]R  
85LAY aw  
private int size=0; MB~=f[cUnd  
 A|<jX}  
private int[] queue; C@'h<[v`1v  
N u<_}  
public int get() { $adbCY \  
return queue[1]; {y_98N  
} )!P)U(*v  
: qd`zG3  
public void remove() { JPoN&BTCj  
SortUtil.swap(queue,1,size--); ~=uWD&5B4  
fixDown(1); ,Vt/(x-  
} K/|Z$4S  
file://fixdown x$6^R q>2  
private void fixDown(int k) { vzim<;i  
int j; E2Q[ZoVS  
while ((j = k << 1) <= size) { !1$])VQWI  
if (j < size %26amp;%26amp; queue[j] j++; 4b98Ks Yg  
if (queue[k]>queue[j]) file://不用交换 )p<ExMIxd  
break; ~?K~L~f5  
SortUtil.swap(queue,j,k); 0.8  2kl  
k = j; }&w Ur>=  
} &E.^jR~*  
} ewctkI$,5  
private void fixUp(int k) { +JjW_Rl?=V  
while (k > 1) { s~5[![1 K  
int j = k >> 1; x-^`~ p  
if (queue[j]>queue[k]) z=q3Zo  
break; iO|se:LY<  
SortUtil.swap(queue,j,k); _./Sk|C  
k = j; v|dBSX9k0  
} 6WXRP;!Q  
} CxwoBuG=?  
Nn!+,;ut  
} W*Zkc:{eB  
DH\0z[  
} ~?d Nd  
#h` V>;  
SortUtil: wl#@lOv-P  
0jy2H2  
package org.rut.util.algorithm; >0ow7Uw;  
8%A#`)fb  
import org.rut.util.algorithm.support.BubbleSort; '>-gi}z7  
import org.rut.util.algorithm.support.HeapSort; I ?gSG*m  
import org.rut.util.algorithm.support.ImprovedMergeSort; (nf~x  
import org.rut.util.algorithm.support.ImprovedQuickSort; Z2qW\E^_r  
import org.rut.util.algorithm.support.InsertSort; 0IBhb(X  
import org.rut.util.algorithm.support.MergeSort; TQpfQ  
import org.rut.util.algorithm.support.QuickSort; dfKF%27  
import org.rut.util.algorithm.support.SelectionSort; ,!#*GZ.ix  
import org.rut.util.algorithm.support.ShellSort; C~2F9Pg  
haK3?A,"_A  
/** n<O}hM ZT  
* @author treeroot 2bw_IT  
* @since 2006-2-2 !dyXJ Q  
* @version 1.0 <>y;.@}Q  
*/ itBwCIjG  
public class SortUtil { ON=@ O  
public final static int INSERT = 1; (^T F%(H  
public final static int BUBBLE = 2; 5:Z0Pt  
public final static int SELECTION = 3; ;z}i-cNae  
public final static int SHELL = 4; B +\3-q  
public final static int QUICK = 5;  D~S<U  
public final static int IMPROVED_QUICK = 6; ?!A7rb/tj  
public final static int MERGE = 7; YIoQL}pX  
public final static int IMPROVED_MERGE = 8; GpY"f c%  
public final static int HEAP = 9; 6#7Lm) g8  
m$}R%  
public static void sort(int[] data) { KL1/^1  
sort(data, IMPROVED_QUICK); \^L`7cBL  
} 8 OY3A  
private static String[] name={ ]zE;Tw.S  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" [^Os kJ4  
}; Ugu[|,  
#5cEV'm;  
private static Sort[] impl=new Sort[]{ Cl; oi}L  
new InsertSort(), Rdvk ml@@  
new BubbleSort(), vQosPS_2L  
new SelectionSort(), \?[v{WP)  
new ShellSort(), 5na~@-9p  
new QuickSort(), Uc7mOa}4  
new ImprovedQuickSort(), S?1AFI9{   
new MergeSort(), xST8|H  
new ImprovedMergeSort(), 5D\f8L  
new HeapSort() JjPKR?[>  
}; PF)jdcX  
K1mPr^3rC  
public static String toString(int algorithm){ *"?l]d  
return name[algorithm-1]; K28+]qy[  
} ALrw\qV  
}\tdcTMgS  
public static void sort(int[] data, int algorithm) { +T|JK7  
impl[algorithm-1].sort(data); [ey:e6,T9  
} |'P]GK  
SQBa;hvgM  
public static interface Sort { &]"  
public void sort(int[] data); ")O%86_Q:  
} 7X0Lq}G@  
%HGD;_bhI  
public static void swap(int[] data, int i, int j) { =XA;[PVx:#  
int temp = data; UW N*j_9i  
data = data[j]; PDJr<E?  
data[j] = temp; E7t+E)=8  
} 7!@-*/|!S9  
} QLXN*c  
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