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
  • 5108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。 Q 3 ea{!r  
插入排序: W<'m:dq  
91/Q9xY  
package org.rut.util.algorithm.support; \UA[  
(|2t#'m  
import org.rut.util.algorithm.SortUtil; C2!|OQ9A2  
/** t^&Cxh  
* @author treeroot [:dY0r+  
* @since 2006-2-2 pd?M f=>#  
* @version 1.0 G0Iw-vf  
*/ )Om*@;r(  
public class InsertSort implements SortUtil.Sort{ Ao 'l"-  
-oGdk|Yn  
/* (non-Javadoc) T9=I$@/  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1Yq!~8  
*/ X;$+,&M"  
public void sort(int[] data) { _T60;ZI+^  
int temp; 'B |JAi?  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 6%'QjwM_  
} MxKS4k  
} $z6_@`[  
} GblA9F7  
Y/F6\oh  
} -E[Kml~U  
I^.Om])  
冒泡排序: O 2V  
Cp\6W[2+B  
package org.rut.util.algorithm.support; poE0{HOU  
~g91Pr   
import org.rut.util.algorithm.SortUtil; #<fRE"v:Q  
ZtNN<7  
/** (g]!J_Z"  
* @author treeroot 8\^R~K`sY  
* @since 2006-2-2 Xg6Jh``  
* @version 1.0 JtE M,tK  
*/ G/E+L-N#`  
public class BubbleSort implements SortUtil.Sort{ }CSDV9).S  
 1~gnc|?  
/* (non-Javadoc) l$KA)xbI  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <)Dj9' _J  
*/ X0HZH?V+  
public void sort(int[] data) { hPB9@ hT$  
int temp; 70d1ReQ  
for(int i=0;i for(int j=data.length-1;j>i;j--){ [g |_~h  
if(data[j] SortUtil.swap(data,j,j-1); : $1?i)  
} 8S TvCH"Z_  
} "x0^#AVg  
} b/K PaNv  
} z(ONv#}p  
[jQp~&nY  
} &u."A3(  
CO/]wS  
选择排序: `v!urE/gg%  
%@b0[ZC  
package org.rut.util.algorithm.support; h,:m~0gmj  
]h`&&Bqt  
import org.rut.util.algorithm.SortUtil; LE Nq_@$  
dFxIF;C>/  
/** M)Z7k/=<P  
* @author treeroot k=$TGqQY?  
* @since 2006-2-2 ;nfdGB  
* @version 1.0 bW427B0  
*/ Wu/]MBM  
public class SelectionSort implements SortUtil.Sort { BKCiIfkZ  
5Pc;5 o0C  
/* Qp5VP@t  
* (non-Javadoc) ;+R&}[9,A)  
* ma]F7dZ5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZDJ`qJ8V  
*/ ,Fl)^Gl8?  
public void sort(int[] data) { gx/,)> E.  
int temp; =ZznFVJ`={  
for (int i = 0; i < data.length; i++) { dES"@?!^  
int lowIndex = i;  4\N ;2N  
for (int j = data.length - 1; j > i; j--) { !qQl@j O  
if (data[j] < data[lowIndex]) { eS^7A}*wd-  
lowIndex = j; |*xA 8&/  
} L<cx:Vz  
} nF]W,@u"h  
SortUtil.swap(data,i,lowIndex); NN{?z!  
} x;KOqfawv  
} AR%4D3Dma  
Tk[ $5u*,  
} p$c6<'UqH  
e)k9dOR  
Shell排序: _yx>TE2e  
*KF#'wi  
package org.rut.util.algorithm.support; e2Pcm_Ahv*  
_ A y9p[l  
import org.rut.util.algorithm.SortUtil; |3b^~?S  
r|8d 4  
/** cl3K<'D  
* @author treeroot a.\:T,cP>  
* @since 2006-2-2 a5^] 20Fa  
* @version 1.0 sE<V5`Z=  
*/ 7aRi5  
public class ShellSort implements SortUtil.Sort{ $rBq"u=,0+  
Pj^{|U21  
/* (non-Javadoc) Mj3A5;#  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h2A <"w  
*/  qA7>vi%  
public void sort(int[] data) { k"%~"9  
for(int i=data.length/2;i>2;i/=2){ 2zA4vZkbcw  
for(int j=0;j insertSort(data,j,i); ,-LwtePJ0  
} +o{R _  
} M/'sl;  
insertSort(data,0,1); >>)b'c  
} O6 3<AY@  
2wg5#i  
/** |A~jsz6pI  
* @param data I_#kgp  
* @param j ~W'{p  
* @param i x+:UN'"r  
*/ mDABH@ R  
private void insertSort(int[] data, int start, int inc) { <al(7  
int temp; =o(5_S.u;  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 9&2O 9Nz6  
} 8 ^2oWC#U(  
} lv<*7BCp  
} I*{ nP)^9  
d L 1tl  
} LmrfN?5  
myQagqRx  
快速排序: ~H_/zK6e  
nNV'O(x}  
package org.rut.util.algorithm.support; =:Fc;n>c<K  
VA>35w  
import org.rut.util.algorithm.SortUtil; %N6A+5H  
~ 'cmSiz-  
/** ~$cV: O7  
* @author treeroot Lx1FpHo  
* @since 2006-2-2 KP^V>9q  
* @version 1.0 `2WFk8) F  
*/ @V sG'  
public class QuickSort implements SortUtil.Sort{ xC:L)7#aw  
qJs<#MQ2  
/* (non-Javadoc) L|+~"'l  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P6`u._mX  
*/ iN\4gQ!  
public void sort(int[] data) { zkrM/ @p#  
quickSort(data,0,data.length-1); NO>w+-dGS  
} orpriO|qD  
private void quickSort(int[] data,int i,int j){ -HbC!w v  
int pivotIndex=(i+j)/2; [A~xy'T  
file://swap iRbT/cc{  
SortUtil.swap(data,pivotIndex,j); ZohCP  
_ QI\  
int k=partition(data,i-1,j,data[j]); BLdvyVFx  
SortUtil.swap(data,k,j); ItVWO:x&v  
if((k-i)>1) quickSort(data,i,k-1); %6,SKg p  
if((j-k)>1) quickSort(data,k+1,j); &X ):4  
(O?.)jEW(.  
} d#Y^>"|$.  
/** P>C~ i:4n  
* @param data 29"'K.r  
* @param i W~; `WR;.  
* @param j Lc,Pom  
* @return ~9]hV7y5C  
*/ ;O6;.5q&  
private int partition(int[] data, int l, int r,int pivot) { |Nn)m  
do{ RDi]2  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); BWa,f8  
SortUtil.swap(data,l,r); ~d4 )/y  
} F?*-4I-  
while(l SortUtil.swap(data,l,r); M61xPq8y5  
return l; =pO^7g  
} *8Xh(` Mj7  
~O0 $Suv  
} y/{fX(aV  
wC+u73599  
改进后的快速排序: *[Tz![|  
nI-w}NQ  
package org.rut.util.algorithm.support; H3 ^},.  
*boR`[Ond  
import org.rut.util.algorithm.SortUtil; SiRaFj4s"  
KIf dafRL  
/** gMmaK0uhS  
* @author treeroot eS\Vib  
* @since 2006-2-2 Y'S%O/$  
* @version 1.0 - q1?? u  
*/ |(E FY\  
public class ImprovedQuickSort implements SortUtil.Sort { O)*+="Rg  
O!#g<`r{K  
private static int MAX_STACK_SIZE=4096; +H-6eP  
private static int THRESHOLD=10; 9G#n 0&wRJ  
/* (non-Javadoc) DDP/DD;n}r  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) xd?f2=dd~h  
*/ W)2p@j59A  
public void sort(int[] data) { b9J_1Gl]  
int[] stack=new int[MAX_STACK_SIZE]; R6Km\N  
m@2QnA[ 4  
int top=-1; OmpND{w  
int pivot; RuA*YV  
int pivotIndex,l,r; y<|7z99L  
O7m(o:t x3  
stack[++top]=0; mb TEp*H  
stack[++top]=data.length-1; Lv;^My  
%KhI>O<  
while(top>0){ 36Zf^cFJ  
int j=stack[top--]; 9@(PWz=`?  
int i=stack[top--]; /sx&=[ D  
JN-y)L/>  
pivotIndex=(i+j)/2; (AaoCa[  
pivot=data[pivotIndex]; RQ'9m^  
]Kt6^|S$a  
SortUtil.swap(data,pivotIndex,j); C=L>zOZ  
v\gLWq'  
file://partition Bi3<7  
l=i-1; rNWw?_H-H(  
r=j; $oID(P  
do{ *xxx:*6rk;  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); KE5kOU;  
SortUtil.swap(data,l,r); q]ku5A\y  
} kW Ml  
while(l SortUtil.swap(data,l,r); EReZkvseC  
SortUtil.swap(data,l,j); (z {#Eq4  
I by\$~V  
if((l-i)>THRESHOLD){ &tLgG4pd  
stack[++top]=i; #uG%j  
stack[++top]=l-1; 6$Xzpg(o  
} mI-]/:  
if((j-l)>THRESHOLD){ { M4gF8(M  
stack[++top]=l+1; UT~4x|b:O  
stack[++top]=j; [I,Z2G,Jb  
} QC OM_$y  
{tuYs:  
} A Ru2W1g  
file://new InsertSort().sort(data); 2 /\r)$ 2i  
insertSort(data); ArI2wM/v  
} ~F|+o}a `  
/** y1eW pPJa  
* @param data 3</_c1~  
*/ Ju!]&G8  
private void insertSort(int[] data) { w7.V6S$Ga  
int temp; HSE!x_$  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); +ZaSM~   
} B dj!ia;H  
} jjB~G^n  
} m<T%Rb4?@  
,F8Yn5h  
} K( c\wr\6  
,i?nWlh+  
归并排序: b7?uq9  
r"3=44St  
package org.rut.util.algorithm.support; Pe_W;q.  
wtQ++l%{G  
import org.rut.util.algorithm.SortUtil; :1. L}4"gg  
shy-Gu&  
/** v!-/&}W)1  
* @author treeroot {yTGAf-DV  
* @since 2006-2-2 [[Ls_ZL!=  
* @version 1.0 F3[T.sf  
*/ ^+>laOzC`8  
public class MergeSort implements SortUtil.Sort{ D(@S+r_ota  
hc(#{]].  
/* (non-Javadoc) KEo ,m  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ios&n)W&  
*/ WtsFz*`)y  
public void sort(int[] data) { *MFIV02[N  
int[] temp=new int[data.length]; 7?!d^$B  
mergeSort(data,temp,0,data.length-1); ed{ -/l~j  
} 93 )sk/j  
zlSNfgO  
private void mergeSort(int[] data,int[] temp,int l,int r){ bivuqKA  
int mid=(l+r)/2; .,|G7DGH]  
if(l==r) return ; m/@wh a  
mergeSort(data,temp,l,mid); }#RakV4  
mergeSort(data,temp,mid+1,r); ,GhS[VJjR  
for(int i=l;i<=r;i++){ ,hm\   
temp=data; iJI }TVep#  
} I3{PZhU.  
int i1=l; CAig ]=2'  
int i2=mid+1; :S{BbQ){]  
for(int cur=l;cur<=r;cur++){ \j}ZB<.>  
if(i1==mid+1) K^)Eb(4  
data[cur]=temp[i2++]; \_VA 50  
else if(i2>r) h ohfE3rd  
data[cur]=temp[i1++]; T[w]o}>cW  
else if(temp[i1] data[cur]=temp[i1++]; $ZhF h{DQ.  
else b4%??"&<Y  
data[cur]=temp[i2++]; !3c\NbU  
} w_"E*9  
} ONB{_X?  
@ p9i  
} )Yh+c=6 ?  
38Mv25N  
改进后的归并排序: MIeU,KT#U  
a_^\=&?'  
package org.rut.util.algorithm.support; /Vx7mF:  
]Grek<  
import org.rut.util.algorithm.SortUtil; :".ARCg  
]`!>6/[  
/** ,a{P4Bq  
* @author treeroot o=:9y-nH  
* @since 2006-2-2 u"r`3P`  
* @version 1.0 D# 9m\o_  
*/ ?um;s-x)  
public class ImprovedMergeSort implements SortUtil.Sort { wy<S;   
dK$XNi13.5  
private static final int THRESHOLD = 10; %OL$57Ia  
^&9zw\x;z  
/* Hs;4lSyUO  
* (non-Javadoc) k{R>  
* 60^`JVGWH  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p;`>e>$  
*/ {K~'K+TPu  
public void sort(int[] data) { nY[WRt w  
int[] temp=new int[data.length]; 6IN e@  
mergeSort(data,temp,0,data.length-1); hIYNhZv  
} y1jCg%'H  
1W c=5!  
private void mergeSort(int[] data, int[] temp, int l, int r) { nK1Slg#U  
int i, j, k; >mbHy<<  
int mid = (l + r) / 2; 9d0@wq.  
if (l == r) =g7x' kN  
return; G{As,`{  
if ((mid - l) >= THRESHOLD) ih-#5M@  
mergeSort(data, temp, l, mid); gMi0FO'  
else ]\-A;}\e  
insertSort(data, l, mid - l + 1); ch*8B(:  
if ((r - mid) > THRESHOLD) &@X<zWg  
mergeSort(data, temp, mid + 1, r); p%up)]?0  
else Pa>AWOG'  
insertSort(data, mid + 1, r - mid); \i>?q   
Fk&c=V;SU  
for (i = l; i <= mid; i++) { x /(^7#u,  
temp = data; 2lZ Q)   
} {r,.!;mHu  
for (j = 1; j <= r - mid; j++) { Q^P}\wb>  
temp[r - j + 1] = data[j + mid]; 9 &dtd  
} ^ox=HNV  
int a = temp[l]; j.[.1G*("  
int b = temp[r]; zF`0J  
for (i = l, j = r, k = l; k <= r; k++) { >.Pnkx*  
if (a < b) { L8@f-Kk  
data[k] = temp[i++]; c`)\Pb/O  
a = temp; etQCzYIhn  
} else { udK%>  
data[k] = temp[j--]; '?{OZXg  
b = temp[j]; EgEa1l!NSQ  
} dM.f]-g  
} pHGYQ;:L  
} GhAlx/K  
N@4w! HpJ  
/** B&M%I:i  
* @param data SBu"3ym  
* @param l $j%'{)gK  
* @param i L]|gZ&^  
*/ n1ZbRV  
private void insertSort(int[] data, int start, int len) { (!u~CZ;  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); ^cC,.Fdw  
} {S]}.7`l9(  
} 93>jr<A  
} *g"Nq+i@  
} 1/B>XkCJ  
U7,e/?a  
堆排序: |w~nVRb  
ZoW?nxY  
package org.rut.util.algorithm.support; G`D`Af/B  
vQG5*pR*w  
import org.rut.util.algorithm.SortUtil; |u% )gk  
P-_6wfg,;>  
/** Rxt^v+ ,$  
* @author treeroot [C 7^r3w  
* @since 2006-2-2 e-/&$Qq  
* @version 1.0 ZL&qp04}  
*/ r.=K~A  
public class HeapSort implements SortUtil.Sort{ R{`(c/%8  
4/~E4"8  
/* (non-Javadoc) gT{Q#C2Baw  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) biD$qg  
*/ <18(  
public void sort(int[] data) { 'T;P;:!\  
MaxHeap h=new MaxHeap(); _IHV7*u{;  
h.init(data); :1Xz4wkWS*  
for(int i=0;i h.remove(); >0y'Rgfe  
System.arraycopy(h.queue,1,data,0,data.length); ;3coP{  
} _#E0g'3  
:wyno#8`-  
private static class MaxHeap{ Vi$~-6n&  
\##zR_%  
void init(int[] data){ BN5[,J  
this.queue=new int[data.length+1]; %bn jgy  
for(int i=0;i queue[++size]=data;  M mj;-u  
fixUp(size); |*eZD-f  
} 8P\G }  
} 5X$jl;6  
1p3z1_wrs  
private int size=0; V*;(kEqj  
|-67 \p]  
private int[] queue; np^N8$i:n  
dm0R[[7  
public int get() { yx8z4*]kH  
return queue[1]; wo{gG?B  
} qbN =4  
A1$TXr  
public void remove() { \A#41  
SortUtil.swap(queue,1,size--); Igt#V;kK"2  
fixDown(1); LKB$,pR~1l  
} \;,+   
file://fixdown Oc0a77@  
private void fixDown(int k) { U[-o> W#  
int j; H [\o RId  
while ((j = k << 1) <= size) { ]L.O8  
if (j < size %26amp;%26amp; queue[j] j++; q'F+OQb1  
if (queue[k]>queue[j]) file://不用交换 <?.&^|kS  
break; rl;~pO5R9  
SortUtil.swap(queue,j,k); yjX9oxhtL  
k = j; K&]G3W%V  
} Hyl%mJ  
} .p3,O6y2(F  
private void fixUp(int k) { 3BJ0S.TF  
while (k > 1) { Xza(k  
int j = k >> 1; (*'f+R`$  
if (queue[j]>queue[k]) &-6Gc;f8  
break; 2 c{34:  
SortUtil.swap(queue,j,k); s WvBv  
k = j; ,AFu C <  
} lIS-4QX1  
} e{K 215  
-zgI_u9=EB  
} hBUn \~z  
nPl?K:(  
} 8C:z"@o  
I-*S&SiXjI  
SortUtil: $szqy?i 0?  
5r|,CQ7o  
package org.rut.util.algorithm; OX!tsARC@  
n5NsmVW\x  
import org.rut.util.algorithm.support.BubbleSort; ES7>H  
import org.rut.util.algorithm.support.HeapSort; -<!NXm|kvz  
import org.rut.util.algorithm.support.ImprovedMergeSort; }B+C~@j  
import org.rut.util.algorithm.support.ImprovedQuickSort; j{A y\n(  
import org.rut.util.algorithm.support.InsertSort; "Ac-tzhE  
import org.rut.util.algorithm.support.MergeSort; DV-d(@`K  
import org.rut.util.algorithm.support.QuickSort; %s|Ely)  
import org.rut.util.algorithm.support.SelectionSort; X`>i& I]  
import org.rut.util.algorithm.support.ShellSort; E6ElNgL  
hx%v+/  
/** t\,PB{P:J  
* @author treeroot m}t`FsB.  
* @since 2006-2-2 WX?IYQ+  
* @version 1.0 k$R-#f;  
*/ KwSqKI7]0  
public class SortUtil { HCs?iJ  
public final static int INSERT = 1; $a"Oc   
public final static int BUBBLE = 2; a~}OZ&PG  
public final static int SELECTION = 3; 1};Stai'  
public final static int SHELL = 4; !)0;&e5  
public final static int QUICK = 5; 5x4yyb'  
public final static int IMPROVED_QUICK = 6; Id .nu/  
public final static int MERGE = 7; ?M9=yA  
public final static int IMPROVED_MERGE = 8; ChPmX+.i_  
public final static int HEAP = 9; vMH  
:q% M_  
public static void sort(int[] data) { #rfiD%c  
sort(data, IMPROVED_QUICK); UECK:61Me  
} f+,qNvBY/  
private static String[] name={ [!#L6&:a8  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" w-MCZwCr)  
}; q"8e a/  
K=h9Ce  
private static Sort[] impl=new Sort[]{ /]Md~=yNp  
new InsertSort(), h2]P]@nW;W  
new BubbleSort(), xj;H&swo  
new SelectionSort(), ~IBP|)WA-  
new ShellSort(), qiBVG H  
new QuickSort(), :>f )g  
new ImprovedQuickSort(), @,7GaK\  
new MergeSort(), Ai?*s%8v  
new ImprovedMergeSort(), ,Uqs1#r  
new HeapSort() joAv{Tc  
}; Zt{[ *~  
~-Qw.EdC  
public static String toString(int algorithm){ e\zm7_+i{  
return name[algorithm-1]; $ >eCqC3  
}  {Gk1vcq  
ZG8DIV\D7  
public static void sort(int[] data, int algorithm) { D.u{~  
impl[algorithm-1].sort(data); mL{6L?  
} "&?kC2Y|  
^A&1^B  
public static interface Sort { Flm%T-Dl  
public void sort(int[] data); ~4Fvy'  
} >tV{Pd1  
sBg.u  
public static void swap(int[] data, int i, int j) { %pL''R9VF  
int temp = data; 0znR0%~  
data = data[j]; _8UU'1d  
data[j] = temp; 'S&zCTX7j  
} wE`]7mA  
} =>v#4zFd  
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