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
  • 7670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。 ;+K:^*oJ  
插入排序: tp$NT.z  
:Oo  
package org.rut.util.algorithm.support; =%Gecj  
R?1;'pvpa[  
import org.rut.util.algorithm.SortUtil; oju/%ieh  
/** i\2MphS  
* @author treeroot G,>tC`!  
* @since 2006-2-2 Zb-TCS+3l  
* @version 1.0 s2g}IZfo  
*/ -Qo`UL.}  
public class InsertSort implements SortUtil.Sort{ X;sl?8HG!<  
a}#[mw@m=  
/* (non-Javadoc) ~CldqXeI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *rp@`W5  
*/ !6|Kpy8  
public void sort(int[] data) { 2f`u?T  
int temp; td q;D  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); e`4OlM]  
} X1:|   
} .Xo, BEjE/  
} ^SxB b,\  
LYGFE jS[  
} -`]B4Nt6  
X"J79?5  
冒泡排序: rj$u_y3S*  
RmO-".$yt  
package org.rut.util.algorithm.support; s7O?)f f  
9+@_ZI-  
import org.rut.util.algorithm.SortUtil; T#J]%IDd  
B^U5= L[:p  
/** .,l ?z  
* @author treeroot 2{"Wa|o`  
* @since 2006-2-2 L GK0V!W  
* @version 1.0 nE]R0|4h  
*/ LB? evewu  
public class BubbleSort implements SortUtil.Sort{ :CSys62  
vb9G_Pfz  
/* (non-Javadoc) -{pcb7.xuv  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :Ff1Js(Z  
*/ KmEm  
public void sort(int[] data) { \PU|<Ru.  
int temp; }pPxN@X  
for(int i=0;i for(int j=data.length-1;j>i;j--){ QtkyKR  
if(data[j] SortUtil.swap(data,j,j-1); )oG_x{  
} SWO$# X /  
} r4Pm i  
} 7 -gt V#  
} qB3 SQ:y  
qQ/j+  
} 0Vh|UJ'&7  
& @^|=>L  
选择排序: ?b2"~A  
wjo xfPnf  
package org.rut.util.algorithm.support; _(<[!c!@0  
7O;v5k~iQ  
import org.rut.util.algorithm.SortUtil; B2 Tp;)  
U|u v SJ)X  
/** hn)mNb!  
* @author treeroot TaG'?  
* @since 2006-2-2 V\PGk<VO  
* @version 1.0 vxZvK0b620  
*/ o { \cCZ"  
public class SelectionSort implements SortUtil.Sort { E >KV1P  
4punJg~1  
/* 9FX'Uws  
* (non-Javadoc) 5=., a5  
* p/cVQ  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) JdfjOlEb  
*/ 72&xEx  
public void sort(int[] data) { 2y,NT|jp  
int temp; _E:]qv  
for (int i = 0; i < data.length; i++) { `+\ +  
int lowIndex = i; r_-iOxt~5  
for (int j = data.length - 1; j > i; j--) { K {!eHTU  
if (data[j] < data[lowIndex]) { ts{Tk5+  
lowIndex = j; ,N< xyx.  
} y_Bmd   
} X[(u]h`  
SortUtil.swap(data,i,lowIndex); 9H" u\t|?  
}  *9`@  
} kRTT ~  
+K; X$kB  
} [wjA8d.  
n>+M4Zb  
Shell排序: &xj?MgdNL  
_Sosw|A  
package org.rut.util.algorithm.support; Z81]>  
@2L+"=u#  
import org.rut.util.algorithm.SortUtil; U9y[b82  
wg<DV!GZ  
/** |*fGG?}  
* @author treeroot E/Q[J.$o  
* @since 2006-2-2 GW]Ygf1t  
* @version 1.0 tOn/r@Fd^E  
*/ eXc`"T,C.  
public class ShellSort implements SortUtil.Sort{ f]qP xRw  
/Pxt f~$  
/* (non-Javadoc) dTB^6 >H  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Vge9AH:op  
*/ X<OwB-N  
public void sort(int[] data) { 'hf#Q9W5  
for(int i=data.length/2;i>2;i/=2){ Z0`Bn5  
for(int j=0;j insertSort(data,j,i); kbN2dL  
} G yvEc3|@  
} 7s4G|N[wR\  
insertSort(data,0,1); d!D#:l3;  
} \3"4;fM!i  
A% -*M 'J  
/** QaH32(iH  
* @param data 7YV}F9h4  
* @param j @a'Rn  
* @param i 4[44Eku\  
*/ _rdEur C6  
private void insertSort(int[] data, int start, int inc) { /vYuwaWG=  
int temp; bE74Ui  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ]o$aGrZ  
} ,,sKPj[  
} }R=n!Y$F  
} v,I4ozDx  
H9?(5  
} _D1Uc|  
 SP?~i@H  
快速排序: z\Hg@J&#  
mSm:>hBd  
package org.rut.util.algorithm.support; Hz ) Xn\x  
J$F 1sy  
import org.rut.util.algorithm.SortUtil; sG7G$G*ta!  
v*iD)k:|t  
/** e{EKM4  
* @author treeroot Xia4I* *  
* @since 2006-2-2 `d2 r5*<  
* @version 1.0 w<#/ngI2  
*/ OyH>N/  
public class QuickSort implements SortUtil.Sort{ mE=%+:o.  
NX%"_W/W  
/* (non-Javadoc) \5M1;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S3 12#X(%  
*/ JN)@bP  
public void sort(int[] data) { PvF3a `&r  
quickSort(data,0,data.length-1); 4zKmoYt  
} I!1|);li  
private void quickSort(int[] data,int i,int j){ B6ee\23  
int pivotIndex=(i+j)/2; 1[p6v4qO{  
file://swap $$F iCMI  
SortUtil.swap(data,pivotIndex,j); o|(Ivt7jk  
;O8'vp  
int k=partition(data,i-1,j,data[j]); Gf71udaa  
SortUtil.swap(data,k,j); zW#P ~zS  
if((k-i)>1) quickSort(data,i,k-1); .3>`yL  
if((j-k)>1) quickSort(data,k+1,j); Yw=7(}  
A\ARjSdb  
} nl<TM96  
/** 8! eYax   
* @param data OD[q u  
* @param i 9U&~H*Hf  
* @param j ^E~F,]dV=  
* @return Qe4O N3X!  
*/ 4}4cA\B:n  
private int partition(int[] data, int l, int r,int pivot) { _cvA1Q"  
do{ 7<GC{/^T  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); p{|!LcSU$2  
SortUtil.swap(data,l,r); x994B@\j+  
} Op()`x m  
while(l SortUtil.swap(data,l,r); mHe[ NkY6  
return l; .n[;H;  
} #{_iNra9  
)iX2r{  
} G+7#!y Y  
QjOO^6Fh  
改进后的快速排序: PH.g+u=v  
H#Hhi<2  
package org.rut.util.algorithm.support; V82HO{ D  
+[vI ocu  
import org.rut.util.algorithm.SortUtil; x" lcE@(  
x52#md-Z  
/** bT7+$^NHf  
* @author treeroot )Cu2xRr^`  
* @since 2006-2-2 }#r awVe=  
* @version 1.0 @yM$Et5  
*/ Gsn$r(m{K  
public class ImprovedQuickSort implements SortUtil.Sort { Z_U4Yy'NNw  
j)ME%17  
private static int MAX_STACK_SIZE=4096; }1 ,\ *)5  
private static int THRESHOLD=10; S86,m =  
/* (non-Javadoc) po\(O8#5U  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }7*|s+F(f  
*/ 7Q^p|;~a  
public void sort(int[] data) { o_8Wnx^  
int[] stack=new int[MAX_STACK_SIZE]; {o SdVRI  
H-rxn  
int top=-1; OUq%d8 W  
int pivot; GQ(*k)'a  
int pivotIndex,l,r; {p.^E5&  
.Hnhd/ c  
stack[++top]=0; |k$6"dXSO  
stack[++top]=data.length-1; ZIN1y;dJ  
8WE@ X)e  
while(top>0){ r]@T9\9  
int j=stack[top--]; ~R&rQJJeJ  
int i=stack[top--]; IaZmN.k*  
>AFQm  
pivotIndex=(i+j)/2; -Uan.#~S  
pivot=data[pivotIndex]; :i4AkBNK  
!2Gua1z!CJ  
SortUtil.swap(data,pivotIndex,j); + -uQ] ^n  
\ZM5J  
file://partition *I!R0;HT  
l=i-1; |a#=o}R_  
r=j; {#st>%i  
do{ _Pno9|  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); b@c(Nv  
SortUtil.swap(data,l,r); hraR:l D  
} L3w.<h  
while(l SortUtil.swap(data,l,r); g$ HL::  
SortUtil.swap(data,l,j); #|K{txC   
j!@T@ 8J  
if((l-i)>THRESHOLD){ veuX />!  
stack[++top]=i; =;+gge!?bB  
stack[++top]=l-1; ^vxx]Hji  
} {+zG.1o^  
if((j-l)>THRESHOLD){ t{>#)5Pqv  
stack[++top]=l+1; B `.aQ  
stack[++top]=j; tA^+RO4  
} gzlxkv-F{  
1.M<u)1GU  
} Ypl;jkHP  
file://new InsertSort().sort(data); >yr;Y4y7K  
insertSort(data); !ui t  
} Auc&dpW  
/** -.r"|\1X  
* @param data gyq6LRb  
*/ 'j*Q   
private void insertSort(int[] data) { &a4FGzR#  
int temp;  Cu5_OJ  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); k;jl3GV  
}  6/#+#T  
} [0qswsV  
} z{&Av  
xe^M2$clb\  
} |{(JUXo6K  
!yT=*Cj4  
归并排序: jI'?7@32`  
[<5/s$,i  
package org.rut.util.algorithm.support; ? A;RTM  
*#E_KW1RV  
import org.rut.util.algorithm.SortUtil;  5k@T{  
)5n0P Zi  
/** 8G3 Z,8P4(  
* @author treeroot 2+I5VPf  
* @since 2006-2-2 0C.5Qx   
* @version 1.0 :-#7j} R&  
*/ GApvRR+Z  
public class MergeSort implements SortUtil.Sort{ %TRJ  
Q|P M6ta  
/* (non-Javadoc) Xp| 4WM  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])  H{yBD xw  
*/ QnOs8%HS-  
public void sort(int[] data) { q+4dHS)x  
int[] temp=new int[data.length]; *Gv:N6  
mergeSort(data,temp,0,data.length-1); c~/poFj  
} )X," NJG  
@{{L1[~:0  
private void mergeSort(int[] data,int[] temp,int l,int r){ v(R^LqE  
int mid=(l+r)/2; Xs|d#WbX  
if(l==r) return ; ^V1\boo=  
mergeSort(data,temp,l,mid); </ "Wh4>C  
mergeSort(data,temp,mid+1,r); ^7ID |uMr  
for(int i=l;i<=r;i++){ *~4<CP+"0  
temp=data; so1  
} c$)>$&([  
int i1=l; @aN~97 H\  
int i2=mid+1; k%u fgHl!  
for(int cur=l;cur<=r;cur++){ ^t71${w##  
if(i1==mid+1) 5#x[rr{^*  
data[cur]=temp[i2++]; nu:l;+,VY  
else if(i2>r) `KLr!<i()  
data[cur]=temp[i1++]; 901 5PEO  
else if(temp[i1] data[cur]=temp[i1++]; !-n* ]C  
else h?;03>6A&]  
data[cur]=temp[i2++]; qc.TYp  
} -K$ugDi  
} ;qy;;usa  
v!DK.PZbi  
} #@w/S:KbJt  
/=l!F'  
改进后的归并排序: %-$ :/ N  
ZU0*iA  
package org.rut.util.algorithm.support; As5l36  
ZwY mR=  
import org.rut.util.algorithm.SortUtil; E_$nsM8?  
RrH{Y0  
/** J#j3?qrxu  
* @author treeroot kREFh4QO,  
* @since 2006-2-2 =aQlT*n%3  
* @version 1.0 m5] a  
*/ hT_Q_1,  
public class ImprovedMergeSort implements SortUtil.Sort { e2G;_:  
Wi5Dl=  
private static final int THRESHOLD = 10; 8 l= EL7  
'byTM?Sp{  
/* K0o${%'@7  
* (non-Javadoc) 1#;^ Z3  
* x $[_Hix  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) SYQP7oG9oQ  
*/ F4"bMN  
public void sort(int[] data) { DnhbMxh8o  
int[] temp=new int[data.length]; E@)'Z6r1  
mergeSort(data,temp,0,data.length-1); [e _csQ  
} a{}#t}  
 Y%y  
private void mergeSort(int[] data, int[] temp, int l, int r) { 0t"Iq71/  
int i, j, k; ~,)D n  
int mid = (l + r) / 2; nFI<Te^)  
if (l == r) =+?OsH v  
return; @}wa Z?'  
if ((mid - l) >= THRESHOLD) 9C Ki$L  
mergeSort(data, temp, l, mid); yA*U^:%  
else .q:6F*,1M  
insertSort(data, l, mid - l + 1); MT)q?NcG  
if ((r - mid) > THRESHOLD) J{kS4v*J  
mergeSort(data, temp, mid + 1, r); v+trHdSBYE  
else Z 5P4 H  
insertSort(data, mid + 1, r - mid); L:?Ew9Lf  
eTw9 c }[  
for (i = l; i <= mid; i++) { omPxU2Jw  
temp = data; lk81IhI  
} CK|AXz+EN  
for (j = 1; j <= r - mid; j++) { 3m-g-  
temp[r - j + 1] = data[j + mid]; p/7'r  
} e0ni  
int a = temp[l]; Uugq.'>  
int b = temp[r]; 0Y0`$   
for (i = l, j = r, k = l; k <= r; k++) { `)KGajB  
if (a < b) { )Spa F)N8  
data[k] = temp[i++]; Rg46V-"d,@  
a = temp; XN?my@_HpM  
} else { B`3z(a92S  
data[k] = temp[j--]; ZWjje6  
b = temp[j]; cH|J  
} aZa1eE  
} &m9= q|;m  
} +7 j/.R  
KjF8T7%  
/** <HS{A$]  
* @param data dNqj|Vu  
* @param l eOXu^M>:F  
* @param i 55] MRv  
*/ n+<  
private void insertSort(int[] data, int start, int len) { "WXUz  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); C{G=Y[?oc  
} #SI]^T|  
} <m{#u4FC'  
} _F4=+dT|  
} KiE'O{Y  
Hv:~)h$  
堆排序: nG?Z* n  
t%k`)p7O  
package org.rut.util.algorithm.support; a~JZc<ze  
H+gB|  
import org.rut.util.algorithm.SortUtil; LtKR15h,  
*&h]PhY  
/** xH,e$t#@@~  
* @author treeroot j!;E>`g  
* @since 2006-2-2 8-kR {9r  
* @version 1.0 m@L>6;*  
*/ i/!KUbt  
public class HeapSort implements SortUtil.Sort{ <1x u&Z7  
#KHj.Vg  
/* (non-Javadoc) _pvt,pW  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #\_FSr fX  
*/ pRsIi_~&  
public void sort(int[] data) { -sDl[  
MaxHeap h=new MaxHeap(); LUpkO  
h.init(data); od,,2pwK+  
for(int i=0;i h.remove(); GGZ9DC\{  
System.arraycopy(h.queue,1,data,0,data.length); qM 3(OvCt  
} @q@I(%_`  
d5{RIM|  
private static class MaxHeap{ wsAb8U C_  
wLE|J9t%Ea  
void init(int[] data){ dEX67rUj;  
this.queue=new int[data.length+1]; m|]"e@SF2  
for(int i=0;i queue[++size]=data; Zba<|C  
fixUp(size); 20Jlf?  
} q 4Ok$~"I  
} jsKKg^ g  
c@j3L23B  
private int size=0; PBL=P+  
rV-Xsf7Z  
private int[] queue; 4Y G\<Zf  
IkGM~3e  
public int get() { ,Vz-w;oDn  
return queue[1]; R-4#y%k<  
} Gsm.a  
_tQM<~Y]u\  
public void remove() { ys7 Tq+  
SortUtil.swap(queue,1,size--); 9%MgAik(  
fixDown(1); O[|X=ZwR:l  
} 9sv#TT5V  
file://fixdown ^ZBTd5t#  
private void fixDown(int k) { H>-{.E1bG  
int j; D7jbo[GgS  
while ((j = k << 1) <= size) { Y%zWaH  
if (j < size %26amp;%26amp; queue[j] j++; ,kFp%qNj  
if (queue[k]>queue[j]) file://不用交换 nLrCy5R:  
break; N6*FlG-  
SortUtil.swap(queue,j,k); S]&aDg1y}  
k = j; tq*6]q8c>  
} 7WNUHLEt  
} _0iV6Bj  
private void fixUp(int k) { =66'33l2  
while (k > 1) { _X{ GZJm  
int j = k >> 1; .[?2_e#9%  
if (queue[j]>queue[k]) IfP?+yPa  
break; _.m|Ml,`{  
SortUtil.swap(queue,j,k); _+Pz~_+kS  
k = j; {~'Iu8TvZ  
} nHLMF7\  
} @$~;vS  
hSj@<#b>F  
} }YU\}T-P  
mWMtz]M}  
} Dh68=F0  
-AB0uMot  
SortUtil: j:HIcCp  
VLbbn  
package org.rut.util.algorithm; `"#hhKG  
rX?%{M,xFw  
import org.rut.util.algorithm.support.BubbleSort; "=2'Oqp1  
import org.rut.util.algorithm.support.HeapSort; :=:m4UJb  
import org.rut.util.algorithm.support.ImprovedMergeSort; =8Z-ORW51  
import org.rut.util.algorithm.support.ImprovedQuickSort; +u`4@~D#  
import org.rut.util.algorithm.support.InsertSort; D]WrPWL8v  
import org.rut.util.algorithm.support.MergeSort; 1 q|iw  
import org.rut.util.algorithm.support.QuickSort; @E"lN  
import org.rut.util.algorithm.support.SelectionSort; dleCh+ny?  
import org.rut.util.algorithm.support.ShellSort; ]i>,oxBWe  
\9R=fA18  
/** *y|zF6  
* @author treeroot 4)p ID`  
* @since 2006-2-2 ,}l|_GGj  
* @version 1.0 xO4""/ n  
*/ KC8  
public class SortUtil { ~1nKL0C6u  
public final static int INSERT = 1; jcRe),  
public final static int BUBBLE = 2; y-~_W 6\  
public final static int SELECTION = 3; m\MI 6/  
public final static int SHELL = 4; R%`fd *g  
public final static int QUICK = 5; bR?xz-g%<3  
public final static int IMPROVED_QUICK = 6; ONF x -U]  
public final static int MERGE = 7; (g1Op~EM  
public final static int IMPROVED_MERGE = 8; ^E".`~R  
public final static int HEAP = 9; j_z@VT}y  
z]2lT IWg  
public static void sort(int[] data) { jI9#OEH_g  
sort(data, IMPROVED_QUICK); b)r;a5"<5  
} h\+8eeIl  
private static String[] name={ U6YHq2<  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" uXb} o UC  
}; w zi7pJjXh  
.ns1;8  
private static Sort[] impl=new Sort[]{ h$FpH\-  
new InsertSort(), 54w..8'  
new BubbleSort(), DUxj^,mf,  
new SelectionSort(), ]N^a/&} *  
new ShellSort(), 9 BPucXK  
new QuickSort(), #AzZ4<;7  
new ImprovedQuickSort(), wTGH5}QZ+  
new MergeSort(), sV+/JDl  
new ImprovedMergeSort(), !K#Q[Ee  
new HeapSort() Q0I22?  
}; d([NU;  
;5A  
public static String toString(int algorithm){ k"V| f&  
return name[algorithm-1]; bBBW7',[a  
} #]'#\d#i  
"]81+ D  
public static void sort(int[] data, int algorithm) { 3eqnc),Z  
impl[algorithm-1].sort(data); c@%:aiEl  
} X/fk&Cp  
F`;oe[wfk  
public static interface Sort { LoQm&3/  
public void sort(int[] data); #N?EPV$  
} xZ} 1dq8  
-aPvls   
public static void swap(int[] data, int i, int j) { `g&<7~\=A  
int temp = data; Tp&03  
data = data[j]; C#`VVtei  
data[j] = temp; Lf|5miO  
} :yo tpa  
} V^WR(Q}  
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
如果您在写长篇帖子又不马上发表,建议存为草稿
认证码:
验证问题:
10+5=?,请输入中文答案:十五