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
  • 8970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。 ope^~+c~\  
插入排序: z_4J)?3  
e8?jmN`2  
package org.rut.util.algorithm.support; l}A93jSL  
M&9+6e'-F  
import org.rut.util.algorithm.SortUtil; 60?%<oJ oH  
/** tW}'g:s  
* @author treeroot \xw5JGm  
* @since 2006-2-2 q(W3i^778  
* @version 1.0 FP4P|kl/9'  
*/ 5D//*}b,  
public class InsertSort implements SortUtil.Sort{ 7Kxp=-k  
3 {sVVq5Y  
/* (non-Javadoc) T'Dv.h  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a~y'RyA  
*/ T%*D~=fQ'  
public void sort(int[] data) { ]2qo+yB  
int temp; uiR8,H9*M  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); DT&@^$?  
} U-tTW*[1]  
} 7a<DKB  
} Fd9 [pU  
0*{%=M  
} )|# sfHv7  
b,1ePS  
冒泡排序: s&3Vg7B  
)oPBa  
package org.rut.util.algorithm.support; bq0zxg%  
UH"%N)[  
import org.rut.util.algorithm.SortUtil; 'YSHi\z ](  
z9Rp`z&`E  
/** 3eQ&F~S  
* @author treeroot `*1p0~cu  
* @since 2006-2-2 p>8D;#Hm L  
* @version 1.0 0{-q#/  
*/ NyNXP_8  
public class BubbleSort implements SortUtil.Sort{ ' %o#q6O  
WX3-\Y5E  
/* (non-Javadoc) O)r4?<Q  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) WOL:IZX%  
*/ sdw(R#GE  
public void sort(int[] data) { cTTL1SW  
int temp; {kR#p %E]  
for(int i=0;i for(int j=data.length-1;j>i;j--){ > /caXvS  
if(data[j] SortUtil.swap(data,j,j-1); )bscBj@  
} ][Rh28?I{  
} R~ q]JSIC@  
} n,WqyNt*  
} -m~#Bq  
gV_}-VvP  
} 4~Q/"hMSkO  
>}6%#CAf  
选择排序: draN0v f  
w NdisI  
package org.rut.util.algorithm.support; PB\x3pV!}  
u.xnOcOH!  
import org.rut.util.algorithm.SortUtil; s?L  
B:'US&6Lf'  
/** ,r\o}E2  
* @author treeroot YS"=yye 3e  
* @since 2006-2-2 P71Lqy)5}A  
* @version 1.0 "S?z@ i(K^  
*/ WNrk}LFof  
public class SelectionSort implements SortUtil.Sort { z!9-:  
E+;7>ja  
/* TAW/zpps$  
* (non-Javadoc) ]N F[>uiW  
* 7WZ+T"O{I  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ePo}y])2  
*/ { 9q4)R}G  
public void sort(int[] data) { ##"HF  
int temp; Oxd]y1  
for (int i = 0; i < data.length; i++) { ]~3V}z,T*  
int lowIndex = i; j|#Bo:2km  
for (int j = data.length - 1; j > i; j--) { 9p(. A$  
if (data[j] < data[lowIndex]) { ,Ko!$29[  
lowIndex = j; H"WprHe  
} hkQ"OsU  
} $yNS pNmT0  
SortUtil.swap(data,i,lowIndex); tK\~A,=  
} yD}B%\45  
} 7hPY_W y  
P-"y3 ZE=  
} v`1M[  
1p=]hC  
Shell排序: qY!Zt_Be6  
HN|%9{VeB  
package org.rut.util.algorithm.support; & >fQp(f  
_.8S&  
import org.rut.util.algorithm.SortUtil; #AQV(;r7@  
/IMFO:c  
/** $qj2w"'  
* @author treeroot I b5rqU\  
* @since 2006-2-2 Ig>(m49d  
* @version 1.0 o?\?@H  
*/ / %io+94  
public class ShellSort implements SortUtil.Sort{ C;^X[x%h7$  
~Z' ?LV<t  
/* (non-Javadoc) fI|Nc  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4'=y:v2  
*/ Z4ImV~m  
public void sort(int[] data) { $6poFo)U+  
for(int i=data.length/2;i>2;i/=2){ f ) L  
for(int j=0;j insertSort(data,j,i); >~0Z& d  
} Mb*?5R6;  
} t"oeQ*d%  
insertSort(data,0,1); 92oFlEJ  
} 8KzkB;=n  
M9%$lCl   
/** 5:_}zu|!u  
* @param data e+fN6v5pU  
* @param j NK H@+,+V  
* @param i C$`tbq  
*/ 3/eca  
private void insertSort(int[] data, int start, int inc) { /N.U/MPL_  
int temp; 5`p.#  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ;;/{xvQ.1  
} d8P^lv*rQW  
} |P?*5xPB  
} `r 3  
jAlv`uB|G"  
} %d9uTm;  
>i?oC^QM  
快速排序: O?#7N[7  
@`9]F7h5W  
package org.rut.util.algorithm.support; wN~_v-~*Q  
.HABNPNg(  
import org.rut.util.algorithm.SortUtil; :gFx{*xN/9  
"E4a=YH_  
/** [ub e6  
* @author treeroot KF:78C  
* @since 2006-2-2 \YrUe1  
* @version 1.0 ,r_Gf5c  
*/ bW(0Ng  
public class QuickSort implements SortUtil.Sort{ 4;2uW#dG"  
FGBbO\< /  
/* (non-Javadoc) Yrq~5)%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >Cq<@$I2EB  
*/ mj7#&r,1l  
public void sort(int[] data) { 5*u+q2\F  
quickSort(data,0,data.length-1); PXNuL&   
} c'\dFb9a  
private void quickSort(int[] data,int i,int j){ gL/9/b4  
int pivotIndex=(i+j)/2; `C'H.g\>2Q  
file://swap #&e-|81H  
SortUtil.swap(data,pivotIndex,j); *MW\^PR?  
>uEzw4w  
int k=partition(data,i-1,j,data[j]); &s>Jb?_5Mx  
SortUtil.swap(data,k,j); ="l/klYV  
if((k-i)>1) quickSort(data,i,k-1); b^vQpiz  
if((j-k)>1) quickSort(data,k+1,j); ) Hr`M B  
YKK*ER0  
} &s!@29DXR  
/** aV0"~5  
* @param data ]\HvKCN}  
* @param i /&J T~M  
* @param j "qy,*{~  
* @return +k R4E23:  
*/ [AJJSd/:  
private int partition(int[] data, int l, int r,int pivot) { &m;*<}X  
do{ Bdpy:'fJn  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); l,aay-E  
SortUtil.swap(data,l,r); V0a3<6@4  
} aw&,S"A@  
while(l SortUtil.swap(data,l,r); <qt|d&  
return l; +R75v)  
} )NT*bLRPQ  
+R:(_:7  
} 1s;S aq+  
* kh tJ]=  
改进后的快速排序: 6j|{`Zd)G  
)%fH(ns(  
package org.rut.util.algorithm.support; 7tCw*t$  
HTTC TR  
import org.rut.util.algorithm.SortUtil; `){.+S(5C  
:\_ 5oVb  
/** Qn2&nD%zi  
* @author treeroot buHJB*?9  
* @since 2006-2-2 $3kH~3{]  
* @version 1.0 j.= 1rwPt  
*/ <9b &<K:  
public class ImprovedQuickSort implements SortUtil.Sort { es0hm2HT3  
V>3X\)qu  
private static int MAX_STACK_SIZE=4096; XQw9~$  
private static int THRESHOLD=10; )0k53-h&  
/* (non-Javadoc) }c:M^Ff  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3Tm+g2w2V8  
*/ [dVL&k<P  
public void sort(int[] data) { bpa?C  
int[] stack=new int[MAX_STACK_SIZE]; <(!:$  
&5!8F(7  
int top=-1; ZSo)  
int pivot;  e]$s t?  
int pivotIndex,l,r; o^wqFX(Y  
X2"/%!65{  
stack[++top]=0; >/6 _ ^  
stack[++top]=data.length-1; +LJ73 !  
u)Whr@m  
while(top>0){ "d}Gp9+$VY  
int j=stack[top--]; GTxk%   
int i=stack[top--]; KqP#6^ _  
 4Wp=y  
pivotIndex=(i+j)/2; ;mi%F3  
pivot=data[pivotIndex]; *qpSXmOz  
M)(DZ}  
SortUtil.swap(data,pivotIndex,j); AQ^u   
+ >!;i6|  
file://partition #4;wjcGWw  
l=i-1; qZZK#,Qb  
r=j; )QJUUn#  
do{ V|R,!UND  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); (^>J&[=  
SortUtil.swap(data,l,r); B`sAk %  
} %@Jsal'  
while(l SortUtil.swap(data,l,r); MnHNjsO#  
SortUtil.swap(data,l,j); N6TH}~62}  
/g.U&oI]D  
if((l-i)>THRESHOLD){ |5]X| v  
stack[++top]=i; #lO Mm9  
stack[++top]=l-1; `EQL" =)  
} !bP@n  
if((j-l)>THRESHOLD){ {K!)Ss  
stack[++top]=l+1; o{[qZc_%  
stack[++top]=j; yIE!j %u  
} z0 Z%m@  
7-V/RChBm  
} 1B\WA8  
file://new InsertSort().sort(data); 0tJ Z4(0  
insertSort(data); _tycgq#  
} @PIp* [7oC  
/** 8xMX  
* @param data vw@S>G lGg  
*/ NCD04U5y  
private void insertSort(int[] data) { dgP3@`YS  
int temp; #p{4^  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); "uf%iJ:%  
} *=xr-!MEk  
}  _','9|  
} 4 H&#q>  
DW3G  
} og>uj>H&  
<{cQ2  
归并排序: CNx8] _2  
BL4-7  
package org.rut.util.algorithm.support; 4{Z)8;QX  
|&4/n6;P$0  
import org.rut.util.algorithm.SortUtil; MfkN]\Jyw  
kSo"Ak!  
/** DIUjn;>k8  
* @author treeroot o,wUc"CE  
* @since 2006-2-2 :MDKC /mC  
* @version 1.0 N)Z?Z+ }h  
*/ L4l!96]a  
public class MergeSort implements SortUtil.Sort{ #|``ca54B  
bQ5\ ]5M  
/* (non-Javadoc) Ht&Y C<X  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &>}5jC.I  
*/ I*^Ta{j[  
public void sort(int[] data) { -DAlRz#d,  
int[] temp=new int[data.length]; 9Gz=lc[!7  
mergeSort(data,temp,0,data.length-1); >5SSQ\2~a  
} >KKMcTOYY  
!1b;F*H  
private void mergeSort(int[] data,int[] temp,int l,int r){ FE;x8(;W8  
int mid=(l+r)/2; uvS)8-o&F  
if(l==r) return ; E<*xx#p  
mergeSort(data,temp,l,mid); C9 j|OSgk  
mergeSort(data,temp,mid+1,r); YA5g';$H*  
for(int i=l;i<=r;i++){ [a<SDMR  
temp=data; _Bj":rzY  
} wI "U7vr  
int i1=l; ??/ 'kmd  
int i2=mid+1; L{Vqh0QD&  
for(int cur=l;cur<=r;cur++){ -35;j'a  
if(i1==mid+1) SZCze"`[  
data[cur]=temp[i2++]; II=79$n`G  
else if(i2>r) PTV:IzoW  
data[cur]=temp[i1++]; eJ81-!)  
else if(temp[i1] data[cur]=temp[i1++]; f`66h M[  
else 9(<@O%YU  
data[cur]=temp[i2++]; z([</D?  
} mXs; b 2r^  
} wwcBsJ1{  
<QGXy=  
} _h1mF<\ X^  
S$X Sei_q  
改进后的归并排序: _GPl gp:  
, 9 a  
package org.rut.util.algorithm.support; J9S>yLQK  
6D_D';o  
import org.rut.util.algorithm.SortUtil; }W,[/)MO  
UkGCyGyZ[  
/** {BU;$  
* @author treeroot B#1;r-^P<  
* @since 2006-2-2 IEvdV6{K  
* @version 1.0 Jj%K=sw  
*/ `~q<N  
public class ImprovedMergeSort implements SortUtil.Sort { Yu2Bkq+  
ht}wEvv  
private static final int THRESHOLD = 10; jZr q{Z<  
~WV"SaA)*U  
/* ]')RMg zM*  
* (non-Javadoc) IV)j1  
* IMONgFBS  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) kB%JNMF{A  
*/ y1L,0 ]  
public void sort(int[] data) { }\k"n{!"  
int[] temp=new int[data.length]; A\5L 7  
mergeSort(data,temp,0,data.length-1); iO; 7t@]-  
} ,~W|]/b<q  
x'R`. !g3  
private void mergeSort(int[] data, int[] temp, int l, int r) { \Y}8S/]  
int i, j, k; mpJ#:}n  
int mid = (l + r) / 2; Wo=jskBrQ  
if (l == r) `Ryp% Bn  
return; <1M-Ro?5k  
if ((mid - l) >= THRESHOLD) ;t`&n['N>  
mergeSort(data, temp, l, mid); U :_^#\p  
else \1Em`nvOX  
insertSort(data, l, mid - l + 1); r" ,GC]  
if ((r - mid) > THRESHOLD) sCHJ&>m5-  
mergeSort(data, temp, mid + 1, r); "C`Ub  
else [}]Q?*_  
insertSort(data, mid + 1, r - mid); S>1Iky|  
-A!%*9Z  
for (i = l; i <= mid; i++) { 7Hu3>4<  
temp = data; J5jvouR  
} jEJT-*I1+  
for (j = 1; j <= r - mid; j++) { uM6+?A9@l  
temp[r - j + 1] = data[j + mid]; k"w"hg&e  
} k|d+#u[Mj@  
int a = temp[l]; $* Kvc$D  
int b = temp[r]; wLr_-vJ  
for (i = l, j = r, k = l; k <= r; k++) { wq`Bd  
if (a < b) { }RqK84K  
data[k] = temp[i++]; >[*qf9$  
a = temp; *c+ (-  
} else { < c/5b]No  
data[k] = temp[j--]; *~i ])4  
b = temp[j]; /&94 eC  
} ,zY$8y]  
} 'uEl~> l7  
} 2jhxQL  
1|wL\I  
/** f& '  
* @param data N]sAji*  
* @param l I,8Er2;)  
* @param i C;urBsC  
*/ uGlUc<B\*  
private void insertSort(int[] data, int start, int len) { q'8 2qY  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); HHsmLo c4  
} U4B( #2'  
} wD)XjX  
} ~e@z;]CiY  
} @;RXLq/8  
CeC6hGR5  
堆排序: ~/P[J  
vRO _Q?  
package org.rut.util.algorithm.support; wAW5 Z0D  
?5 7Sk+  
import org.rut.util.algorithm.SortUtil; I2 P@L?h  
D d</`iUq  
/** 9q[oa5INd  
* @author treeroot uW36;3[f#1  
* @since 2006-2-2 w+CA1q<  
* @version 1.0 lU8`F(Mn  
*/ /I0%Z+`=  
public class HeapSort implements SortUtil.Sort{ 3:i@II  
TWFr 4-  
/* (non-Javadoc) Ciz X<Cr}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3/n5#&c\4  
*/ Jze:[MYS  
public void sort(int[] data) { JFk lUgg  
MaxHeap h=new MaxHeap(); 9-*uPK]m9  
h.init(data); omBoo5e  
for(int i=0;i h.remove(); s!7y  
System.arraycopy(h.queue,1,data,0,data.length); k+pr \d~  
} p= } Nn(  
65Yv4pNL  
private static class MaxHeap{ C>*u()q>4h  
?<'}r7D   
void init(int[] data){ #4 pB@_  
this.queue=new int[data.length+1]; SI-Ops~e  
for(int i=0;i queue[++size]=data; 'SF<_aS(  
fixUp(size); ^ (zYzd  
} W9GVt$T7  
} %d<"l~<5;  
7O-x<P;  
private int size=0; H~1 jY4E  
w&T9;_/  
private int[] queue; SNI)9k(T{  
Hja3a{LH  
public int get() { nc|p)  
return queue[1]; G*P#]eO  
} X_\otV h(D  
'16b2n+F@#  
public void remove() { V[Ui/M!9Z  
SortUtil.swap(queue,1,size--); ,1o FPa{?  
fixDown(1); j+  0I-p  
} 5C5sgR C  
file://fixdown b}TS0+TF  
private void fixDown(int k) { JrRH\+4K  
int j; j HJ`,#  
while ((j = k << 1) <= size) { L0WN\|D  
if (j < size %26amp;%26amp; queue[j] j++; b!5~7Ub.No  
if (queue[k]>queue[j]) file://不用交换 XuM'_FN`A<  
break; 2!=f hN  
SortUtil.swap(queue,j,k); Gu\q%'I  
k = j; 9m~p0ILh  
} *wB1,U{  
} QE`bSI  
private void fixUp(int k) { e h?zNu2=  
while (k > 1) { q'Tf,a  
int j = k >> 1; ExL0?FemWV  
if (queue[j]>queue[k]) L>4"(  
break; -4{<=y?"a  
SortUtil.swap(queue,j,k); 'kO!^6=4M  
k = j; lp%pbx43s  
} .jjG(L  
} H ]Z$OpI  
tG22#F`  
} t=W}SH  
mSl.mi(JiZ  
} K^<BW(s  
+}os&[S  
SortUtil: UhQj Qaa~  
0[?Xxk}s0  
package org.rut.util.algorithm; ?QdWrE_  
PP33i@G  
import org.rut.util.algorithm.support.BubbleSort; @YTaSz$L  
import org.rut.util.algorithm.support.HeapSort; 9 X`Sm}i  
import org.rut.util.algorithm.support.ImprovedMergeSort; a'yK~;+_9  
import org.rut.util.algorithm.support.ImprovedQuickSort; SbrecZ  
import org.rut.util.algorithm.support.InsertSort; )W _v:?A9  
import org.rut.util.algorithm.support.MergeSort; 3K0A)W/YEs  
import org.rut.util.algorithm.support.QuickSort; OU $#5  
import org.rut.util.algorithm.support.SelectionSort; ud@%5d  
import org.rut.util.algorithm.support.ShellSort; <&g,Nc'5C  
PmEsN&YP]  
/** 3kp+<$  
* @author treeroot 6) [H?Q  
* @since 2006-2-2 ]:k/Y$O2  
* @version 1.0 gu.}M:u  
*/ =wV<hg)C  
public class SortUtil { m'=Crei  
public final static int INSERT = 1; e)? .r9pA;  
public final static int BUBBLE = 2; =|y9UlsD  
public final static int SELECTION = 3; IDriGZZ<)6  
public final static int SHELL = 4; h_,i&d@(  
public final static int QUICK = 5; j@3Q;F0ba  
public final static int IMPROVED_QUICK = 6; r1{@Ucw2  
public final static int MERGE = 7; ">,|V-H  
public final static int IMPROVED_MERGE = 8; LG|fq/;  
public final static int HEAP = 9; czgO ;3-C  
.2Elr(&*h  
public static void sort(int[] data) { yEoF4bt  
sort(data, IMPROVED_QUICK); Ww+IWW@  
} Ad9}9!<  
private static String[] name={ x,pjpx  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" l'E*=Rn  
}; paE[rS\  
3J|F?M"N7  
private static Sort[] impl=new Sort[]{ nRZ]z( b  
new InsertSort(), 8COGsWK  
new BubbleSort(), ,~@X{7U  
new SelectionSort(), RmeD$>7  
new ShellSort(), SBk4_J/_  
new QuickSort(), u$Jz~:=,  
new ImprovedQuickSort(), .|>3k'<l  
new MergeSort(), ep)n_!$OH"  
new ImprovedMergeSort(), `V)8 QRN(  
new HeapSort() +`3)oPV)  
}; ' ;FnIZ  
|tMWCA  
public static String toString(int algorithm){ E`usknf>l  
return name[algorithm-1]; Hc$O{]sq  
} a;qryUyG  
=M [bnq*\  
public static void sort(int[] data, int algorithm) { lc1(t:"[  
impl[algorithm-1].sort(data); jTtu0Q|  
} .*S#aq4S  
b;W3j   
public static interface Sort { &4x}ppX  
public void sort(int[] data); oC: {aK6\  
} G+"t/?/  
/1V xc 6  
public static void swap(int[] data, int i, int j) { )9'K($  
int temp = data; 7<#U(,YEA  
data = data[j]; ;oKZ!ND  
data[j] = temp; 6"5A%{ J  
} 6"O+w=5B  
} qHplJ "  
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:
3+5=?,请输入中文答案:八 正确答案:八