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
  • 7034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。 <HX-qNA?  
插入排序: JC?V].) y5  
*q 9$SDm  
package org.rut.util.algorithm.support; )d a8 Ru  
!m.')\4<  
import org.rut.util.algorithm.SortUtil; 2!& ;ZcT,  
/** K0!#l Br  
* @author treeroot C&K(({5O  
* @since 2006-2-2 E]Gq!fA&<  
* @version 1.0 ;0}"2aGY  
*/ Z"8cGN'  
public class InsertSort implements SortUtil.Sort{ 2OOj8JS  
y]z#??  
/* (non-Javadoc) B!C32~[  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3G0\i!*t  
*/ nLLHggNAV  
public void sort(int[] data) { C4d1*IQk  
int temp; O pX  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ~CTRPH   
} w5G34[v  
} vP;tgW9Qk  
} j3'/jk]\  
T//+&Sk[  
} j W]c9u  
9Yne=R/]  
冒泡排序: {y%O_-C'r  
GnHf9 JrR  
package org.rut.util.algorithm.support; W${sD|d-  
BHBR_7  
import org.rut.util.algorithm.SortUtil; n6+M qN  
JZ0+VB-3U  
/** !Dn1 pjxc  
* @author treeroot |&*rSp2iH  
* @since 2006-2-2 _5 -"<  
* @version 1.0 e/~<\  
*/ jtCob'n8  
public class BubbleSort implements SortUtil.Sort{ yq^$H^_O p  
 ^*>no=A  
/* (non-Javadoc) [9Hm][|Ph  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fC:\Gh5  
*/ f*f9:xUY  
public void sort(int[] data) { UE](`|4H  
int temp; 9K_HcLO%y  
for(int i=0;i for(int j=data.length-1;j>i;j--){ "@bk$o=  
if(data[j] SortUtil.swap(data,j,j-1); b<MMli  
} os+wTUR^  
} dKG<"  
} j>=".^J  
} (.t:sn"P  
}{PtQc6RL!  
} h.%Qn vL  
vYun^(_-  
选择排序: m#(x D~V  
D#(L@ {vC  
package org.rut.util.algorithm.support; K_Gf\x  
@y%qQe/g  
import org.rut.util.algorithm.SortUtil; Gs?sO?j  
Xc<9[@  
/** G!Q)?N    
* @author treeroot {i?K~| h  
* @since 2006-2-2 a.Vs >1  
* @version 1.0 ITOGD  
*/ ?7dDQI7^(  
public class SelectionSort implements SortUtil.Sort { RLr-xg$K-t  
2Nszxvq,  
/* )7TTRL  
* (non-Javadoc) r+obm)Qtp  
* zXO.NSC[  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *Fs^T^ ?r  
*/ Msdwv.jM  
public void sort(int[] data) { DGUU1 vA  
int temp; !S<~(Ujyw  
for (int i = 0; i < data.length; i++) { U4/$4.'NQ  
int lowIndex = i; ` OK }q  
for (int j = data.length - 1; j > i; j--) { p`ZGV97  
if (data[j] < data[lowIndex]) { t)ry)[Dxv  
lowIndex = j; *gKr1}M  
} pEP.^[  
} }jXUd=.Nu  
SortUtil.swap(data,i,lowIndex); Kqjeqr@)  
} b?^<';,5  
} "@Fxfd+Ot  
vdM\scO:  
} N{@ eV][Q  
}gt~{9?c  
Shell排序: ,4UJ| D=J  
3`I_  
package org.rut.util.algorithm.support; 0<;B2ce  
 vpMv  
import org.rut.util.algorithm.SortUtil; b(,[g>xH   
q3:' 69  
/** sRG3`>1  
* @author treeroot ZaV@}=Rd8  
* @since 2006-2-2 %?y`_~G  
* @version 1.0 {hR23eE)#  
*/ \/G Y0s  
public class ShellSort implements SortUtil.Sort{ ld6@&34  
EORAx  
/* (non-Javadoc) 8t"DQ Y-R  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) /otgFQ_  
*/ D[?|\?  
public void sort(int[] data) { Sn,z$-;h;  
for(int i=data.length/2;i>2;i/=2){ Rx<F^J  
for(int j=0;j insertSort(data,j,i); NoIdO/vy"  
} M?`06jQD.  
} e4P.G4  
insertSort(data,0,1); gA*zFhGVS7  
} kDQXP p  
2y,wN"qH*  
/** ^6n]@4P  
* @param data cPYQ<Y=  
* @param j lUz@Em  
* @param i bvKi0-  
*/ YWdvL3Bgk,  
private void insertSort(int[] data, int start, int inc) { W_EN4p~J  
int temp; )$i3j 1[;  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); D.} b<kDD  
} : Dlk `?  
} |szfup~5es  
} VN;M;fMs  
u,q#-d0g;  
} ZvJx01F{  
tIw4V^'|  
快速排序: H9?~#GPb  
cR} =3|t  
package org.rut.util.algorithm.support; ~+hG}7(:  
l+,rc*-j0  
import org.rut.util.algorithm.SortUtil; X35hLp8 M  
h:wD &Fh8  
/** [%y D,8  
* @author treeroot )*B.y|b #  
* @since 2006-2-2 r+crE %-  
* @version 1.0 UK/k?0  
*/ C09@2M'  
public class QuickSort implements SortUtil.Sort{ 5=\b+<pE  
R!ij CF\  
/* (non-Javadoc) |V5H(2/nk  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) aDESO5  
*/ ho. a93  
public void sort(int[] data) { 4{=Em5`HbO  
quickSort(data,0,data.length-1); M9nYt~vHX  
} o^_am>h  
private void quickSort(int[] data,int i,int j){ jLg4_N1SD  
int pivotIndex=(i+j)/2; G.8ZISN/  
file://swap W:G*t4i  
SortUtil.swap(data,pivotIndex,j);  LvaF4Y2v  
+X%yF{^m(  
int k=partition(data,i-1,j,data[j]); X-)6.[9f  
SortUtil.swap(data,k,j); +$C5V,H ~  
if((k-i)>1) quickSort(data,i,k-1); xe' *%3-v)  
if((j-k)>1) quickSort(data,k+1,j); M'sJ5;^5  
[o6d]i!  
} ~}fpe>M:  
/** q.4DwY5 L  
* @param data z\, w$Ef+  
* @param i (J;<&v}Gad  
* @param j :1Ay_ b_J  
* @return 4T" P #)z  
*/ 9b>a<Z  
private int partition(int[] data, int l, int r,int pivot) { (msJ:SG  
do{ &%<G2x$  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ZZUCwczI  
SortUtil.swap(data,l,r); uWSG+  
} "cZ.86gG`:  
while(l SortUtil.swap(data,l,r); *!r8HV/<  
return l; <v?-$3YT  
} n$>H}#q  
3mWN?fC  
} *hba>LZ  
sE% n=Ww  
改进后的快速排序: _kfApO )O  
q%l<Hw6{z  
package org.rut.util.algorithm.support; b1+Nm  
MWB?V?qPSC  
import org.rut.util.algorithm.SortUtil; {v(3[ 7  
% rkUy?=vu  
/** ouuj d~b+  
* @author treeroot H3JWf MlW  
* @since 2006-2-2 RAvV[QkT  
* @version 1.0 f-PDgs   
*/ 6xwC1V?:0t  
public class ImprovedQuickSort implements SortUtil.Sort { }0I! n@  
Z(#a-_ g  
private static int MAX_STACK_SIZE=4096; D*b> l_  
private static int THRESHOLD=10; xJ4T7 )*  
/* (non-Javadoc) Ty>`r n  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Wjp<(aY[  
*/ {az8*MR=X  
public void sort(int[] data) { ~dv C$   
int[] stack=new int[MAX_STACK_SIZE]; IaW8  
?AR6+`0  
int top=-1; 4&tY5m>  
int pivot; )<+Z,6  
int pivotIndex,l,r; X@B+{IFC  
&}WSfZ0{  
stack[++top]=0; gxF3gM  
stack[++top]=data.length-1; 'n\ZmG{  
l ^{]pD  
while(top>0){  u >x2  
int j=stack[top--]; R]dc(D  
int i=stack[top--]; U7O2.y+  
A\:M}D-(  
pivotIndex=(i+j)/2; l#Iof)@#  
pivot=data[pivotIndex]; F$.M2*9  
zk?lNs  
SortUtil.swap(data,pivotIndex,j); sD M!Uv2n  
&iTsuA/7  
file://partition rkV ZP!7!  
l=i-1; F4*f_lP  
r=j; 9K)2OX;$w  
do{ MYu-[Hg  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); = fm/l-P@  
SortUtil.swap(data,l,r); Mv_4*xVc  
} 0&<{o!>k  
while(l SortUtil.swap(data,l,r); O\x Uv  
SortUtil.swap(data,l,j); 3?C$Tl2G8  
>LLFe~9`g  
if((l-i)>THRESHOLD){ qr :[y  
stack[++top]=i; s:M:Ff  
stack[++top]=l-1; V XC_Y  
} *<J**FhcMu  
if((j-l)>THRESHOLD){ ?k/Uw'J4u/  
stack[++top]=l+1; Hc}(+wQN%  
stack[++top]=j; h.PY$W<  
} dP )YPy_`  
[mX\Q`)QP  
} 07n=H~yU  
file://new InsertSort().sort(data); W Qe>1   
insertSort(data); ]ko>vQ4]3  
} `CW=*uBH  
/**  </7J:#  
* @param data +3VY0J  
*/ _bW#* Y5  
private void insertSort(int[] data) { m%akx@{WL  
int temp; ugOcK Gf  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); RE*;nSVFt  
} bjbm"~  
} w}+jfO9  
} 5'6Oan7dL:  
+YXyfTa  
} :0r@o:H  
gmt`_Dpm$  
归并排序: Tk)y*y  
pX"f "  
package org.rut.util.algorithm.support; s %/3X\_  
5E4np`J  
import org.rut.util.algorithm.SortUtil; IpHGit28  
J-b Z`)[Q  
/** %G>*Pez %  
* @author treeroot  $33wK  
* @since 2006-2-2 wTqgH@rGtR  
* @version 1.0 x]w%?BlS  
*/ G$WMW@fy  
public class MergeSort implements SortUtil.Sort{ T2GJoJ!  
U",kAQY  
/* (non-Javadoc) {o AJL  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) o[aRG7C  
*/ fE,\1LK4  
public void sort(int[] data) { c.r]w  
int[] temp=new int[data.length]; dCN4aY[d  
mergeSort(data,temp,0,data.length-1); kowBB0  
} G8 H=xr#  
</Ja@%  
private void mergeSort(int[] data,int[] temp,int l,int r){ |G } qY5_  
int mid=(l+r)/2; 5Q =o.wf  
if(l==r) return ; |}=xA%)  
mergeSort(data,temp,l,mid); bt"*@NJ$  
mergeSort(data,temp,mid+1,r); \K55|3~R  
for(int i=l;i<=r;i++){ Xbe=_9l&p  
temp=data; Sw%^&*J  
} C,&r7  
int i1=l; fn;`Vit#  
int i2=mid+1; sBt,y _LW  
for(int cur=l;cur<=r;cur++){ ~}+F$&  
if(i1==mid+1) gM&XVhQJ\  
data[cur]=temp[i2++]; 22(7rUkI  
else if(i2>r) =HH}E/9z  
data[cur]=temp[i1++]; ch!/k  
else if(temp[i1] data[cur]=temp[i1++];  YH@p\#Y  
else <BEM`2B  
data[cur]=temp[i2++]; s$s~p +U  
} ,'Zs")Ydp  
} V\vt!wBcB  
lXjhT  
} 0M-=3T  
A63=$  
改进后的归并排序: ,Y  ./9F  
nW1u;.  
package org.rut.util.algorithm.support; \  2#7B8  
RR |Z,  
import org.rut.util.algorithm.SortUtil; M8(N9)N  
[`2V!rU  
/** hR(\%p  
* @author treeroot =*>ri  
* @since 2006-2-2 ) G a5c  
* @version 1.0 gw O]U=Y  
*/ +~Wg@   
public class ImprovedMergeSort implements SortUtil.Sort { clyZD`*  
_<}oBh  
private static final int THRESHOLD = 10; ;auT!a~a#  
fAYp\ k  
/* crTRfqF  
* (non-Javadoc) }xJ ).D  
* )&Af[m S  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =jz [}5  
*/ )jm!bR`  
public void sort(int[] data) { yGj'0c::  
int[] temp=new int[data.length]; b v5BV  
mergeSort(data,temp,0,data.length-1); @|N{E I  
} 2K wr=t  
*QH~ z2:[  
private void mergeSort(int[] data, int[] temp, int l, int r) { xU9T8Lw  
int i, j, k; 5d|hP4fEc  
int mid = (l + r) / 2; fkk&pu  
if (l == r) 1K\z amBg  
return; upi\pXv  
if ((mid - l) >= THRESHOLD) DXyRNE<G[C  
mergeSort(data, temp, l, mid); VY G o;  
else DsX+/)d  
insertSort(data, l, mid - l + 1); JP{Y Q:NF  
if ((r - mid) > THRESHOLD) ZW>iq M^9  
mergeSort(data, temp, mid + 1, r); ~'lYQ[7  
else 8GlRO4yd  
insertSort(data, mid + 1, r - mid); VRE[ vM'  
;2N: =Rv  
for (i = l; i <= mid; i++) { [$]qJ~kz  
temp = data; @;;3B  
} Ndmki 7A  
for (j = 1; j <= r - mid; j++) { \&BT#8ELG  
temp[r - j + 1] = data[j + mid]; c'md)nD2M  
} H'a6] ]2  
int a = temp[l]; d RIuA)0s  
int b = temp[r]; [jnA?Ge:  
for (i = l, j = r, k = l; k <= r; k++) { ++\s0A(e  
if (a < b) { LiyR,e  
data[k] = temp[i++]; ?LSwJ @#  
a = temp; R/EpfYOX  
} else { 4p<c|(f#  
data[k] = temp[j--]; i4Da'Uk  
b = temp[j]; Fa0Fl}L  
} uxx(WS  
} !:2_y'hA  
} s+0n0C  
T|k_$LH  
/** pgd9_'[5  
* @param data =j^>sg]  
* @param l 2=IZD `{!  
* @param i s.$:.*k  
*/ 1$_|h@  
private void insertSort(int[] data, int start, int len) { =C#22xqQ.  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 5Sz&j  
} z?<Xx?Kk  
} dt5`UBvUg  
} UX24*0`\~  
} d~qZ;uw  
\)M EM=U  
堆排序: 6DVHJ+WTV  
?G>E[!8ev  
package org.rut.util.algorithm.support; s{uSU1lQn  
c8h71Cr  
import org.rut.util.algorithm.SortUtil; BN1,R] *;  
+?'a2pUS  
/** dnzZ\t>U  
* @author treeroot X?7s  
* @since 2006-2-2 Yij_'0vZ  
* @version 1.0 3w&Z:<  
*/ 6GMwB@ b  
public class HeapSort implements SortUtil.Sort{ s:xt4<  
nTv^][  
/* (non-Javadoc) &8HJ4Vj2  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9}T(m(WQVu  
*/ `3^%ft~l  
public void sort(int[] data) { 3[UaK`/1C  
MaxHeap h=new MaxHeap(); /"@k_[O  
h.init(data); 9]gV#uF  
for(int i=0;i h.remove(); LS/ZZAN u  
System.arraycopy(h.queue,1,data,0,data.length); 8a;;MJ)  
} .R^q$U~v3  
t=IM"ZgfL  
private static class MaxHeap{ 0ZJrK\K;  
6m0- he~  
void init(int[] data){ 9Xe|*bT  
this.queue=new int[data.length+1]; af_b G;  
for(int i=0;i queue[++size]=data; QfV:&b`  
fixUp(size); byHXRA)39  
} ~? n)/i("  
} R[W'LRh~:1  
DD'RSV5]  
private int size=0; G&q@B`I  
zB8J|uG  
private int[] queue; .Fx-$Yqy  
~.E r  
public int get() { \iH\N/  
return queue[1]; .2 }5Dc,eR  
} ? @- t.N  
]Wn=Oc{F  
public void remove() { 2,rjy|R`  
SortUtil.swap(queue,1,size--); _N"c,P0  
fixDown(1); fBLR  
} b\vL^\bX8  
file://fixdown mW)C=X%  
private void fixDown(int k) { MZt&HbD-  
int j; Na.)!h_Kn'  
while ((j = k << 1) <= size) { b v 4  
if (j < size %26amp;%26amp; queue[j] j++; &4m;9<8\  
if (queue[k]>queue[j]) file://不用交换 MtG~ O;?8  
break; `08}y*E  
SortUtil.swap(queue,j,k); _]M :  
k = j; k&= iye(  
} qf*e2" ~v  
} ]#\/1!W  
private void fixUp(int k) { 3J[ 5^  
while (k > 1) {  z:d+RMA  
int j = k >> 1; &ER,;^H `6  
if (queue[j]>queue[k]) o(YF`;OhvS  
break; Lf+3nN  
SortUtil.swap(queue,j,k); CTZ#QiNP  
k = j; to#T+d.(v  
} x8Nij: K#  
} i}kMo@  
%(~8a  
} b/UjKNf@  
jN%+)Kj0C)  
} sDS0cc6e  
sf,9Ym  
SortUtil: pW5PF)([  
!}J19]\  
package org.rut.util.algorithm; =UV=F/Af^  
(!koz'f  
import org.rut.util.algorithm.support.BubbleSort; }/VSIS@Z  
import org.rut.util.algorithm.support.HeapSort; m8 Ti{w(  
import org.rut.util.algorithm.support.ImprovedMergeSort; 5wI j:s  
import org.rut.util.algorithm.support.ImprovedQuickSort; {%8=qJ3@  
import org.rut.util.algorithm.support.InsertSort; E#`JH  
import org.rut.util.algorithm.support.MergeSort; { \5-b:#_  
import org.rut.util.algorithm.support.QuickSort; Ip*[H#h  
import org.rut.util.algorithm.support.SelectionSort; :i]g+</  
import org.rut.util.algorithm.support.ShellSort; Cgn@@P5ZC  
oI9-jW  
/** 1A{iUddR  
* @author treeroot QW>(LGG=  
* @since 2006-2-2 h<FEe~  
* @version 1.0 [zhcb+^5l  
*/ O;RNmiVoq  
public class SortUtil { ; Rd\yAG  
public final static int INSERT = 1; 6gD|QC~;  
public final static int BUBBLE = 2; }\d3   
public final static int SELECTION = 3; y5:al7*P  
public final static int SHELL = 4; TmdR B8N  
public final static int QUICK = 5; -P$E)5?^  
public final static int IMPROVED_QUICK = 6; Yd$64d7,h  
public final static int MERGE = 7; N0&#fXO  
public final static int IMPROVED_MERGE = 8; nXxSv~r  
public final static int HEAP = 9; 5h>t4 [~  
/[Sy;wn  
public static void sort(int[] data) { UdX aC= Q  
sort(data, IMPROVED_QUICK); #mbl4a  
} C lzz!v  
private static String[] name={ UE/N-K)`  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" m NApFwZ  
}; >Av%[G5=h#  
J9`[Qy\  
private static Sort[] impl=new Sort[]{ Q)Zk UmW  
new InsertSort(), 0:k ~  lz  
new BubbleSort(), *,p16"Q;  
new SelectionSort(), f n'N^  
new ShellSort(), }{@RO./)[  
new QuickSort(), O:(%m  
new ImprovedQuickSort(), QLAyX*%B  
new MergeSort(), TkV$h(#!f&  
new ImprovedMergeSort(), g bwg3$!9  
new HeapSort() +hd1|qa4  
}; 2`w\<h  
aoS]Qp  
public static String toString(int algorithm){ be5NasC  
return name[algorithm-1]; vh6#Bc)i%w  
} h}$]3/5H  
4!tHJCq"  
public static void sort(int[] data, int algorithm) { kC2_&L  
impl[algorithm-1].sort(data); 8v']>5S]#  
} m7~[f7U  
1w|V'e?kb  
public static interface Sort { _\2^s&iJh  
public void sort(int[] data); o*1t)HL<  
} &-6 D'@  
k0R;1lZ0n  
public static void swap(int[] data, int i, int j) { {T[/B"QZG  
int temp = data; rCO:39L-  
data = data[j]; "rI By  
data[j] = temp; o'nrLI(t  
} hy|X(m  
} 2 -M]!x)  
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
批量上传需要先选择文件,再选择上传
认证码:
验证问题:
10+5=?,请输入中文答案:十五