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
  • 6355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。 =r+K2]z,L  
插入排序: LZ wCe$1  
yF\yxdUX#  
package org.rut.util.algorithm.support;  Gd A!8  
WVD48}HF-  
import org.rut.util.algorithm.SortUtil; yKhI&  
/** z~2{`pET  
* @author treeroot W=HvMD  
* @since 2006-2-2 XaCvBQ  
* @version 1.0 u xyj6(  
*/ 7c"Csq/]I  
public class InsertSort implements SortUtil.Sort{ R'sNMWM  
.@): Uh  
/* (non-Javadoc) J4ZHE\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 6):1U  
*/ N!ihj:,  
public void sort(int[] data) { LEM%B??&5z  
int temp; a4UwhbH  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ='jT 5Mg  
} g8cBb5(L  
} dnomnY(*<  
} `U|7sLR  
Xfg3q.q  
} cFc(HADM`r  
(rFiHv5  
冒泡排序: 6 D Xja_lp  
S'5)K  
package org.rut.util.algorithm.support; bN-!&Td  
,K[e?(RP  
import org.rut.util.algorithm.SortUtil; ,KJHYm=Q  
G_?U?:!AC  
/** -TVwoK  
* @author treeroot I;Mm+5A  
* @since 2006-2-2 )Xqjl  
* @version 1.0  g*a+$'  
*/ PP{ 9Y Vr  
public class BubbleSort implements SortUtil.Sort{ vyDxX  
_yg;5#3  
/* (non-Javadoc) wH8J?j"5>  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,=\.L_'  
*/ MrzD ah9UG  
public void sort(int[] data) { T^Ia^B-%}g  
int temp; Q>D//_TF  
for(int i=0;i for(int j=data.length-1;j>i;j--){  >SQzE  
if(data[j] SortUtil.swap(data,j,j-1); M~\dvJ$cH  
} cO7ii~&%!  
} @\nQ{\^;  
} 7SS#V  
} z=KDkpV  
`E1G9BbU  
} u `/V1  
UhqTn$=fb  
选择排序: 27 XM&ZrZ  
q;bw }4  
package org.rut.util.algorithm.support; Ea S[W?u}  
2!0tD+B  
import org.rut.util.algorithm.SortUtil; ^+Nd\tp  
\t)va:y  
/** Hy4;i^Ik <  
* @author treeroot 3}FZg w .  
* @since 2006-2-2 >=97~a+.  
* @version 1.0 vD@|]@gq  
*/ VxDIA_@y  
public class SelectionSort implements SortUtil.Sort { r QiRhp  
g;=VuQuP|  
/* lS9S7`  
* (non-Javadoc) 27N;>   
* )qb'tZz/g_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) OW#0$%f  
*/ 0e<>2AL   
public void sort(int[] data) { %d];h  
int temp; EtzSaB*|  
for (int i = 0; i < data.length; i++) { AE>W$x8P  
int lowIndex = i; f$QkzWvr  
for (int j = data.length - 1; j > i; j--) { i[9yu-  
if (data[j] < data[lowIndex]) { V K6D  
lowIndex = j; we[+6Z6J  
} D(ItNMc Ku  
} ]}lt^7\=  
SortUtil.swap(data,i,lowIndex); Y>w7%N  
} dJ I }uQ  
} OY}FtG y  
,2$<Pt;  
} s1Acl\l-uF  
! DOyOTR&3  
Shell排序: by'KJxl[  
beo(7,=&  
package org.rut.util.algorithm.support; :=y5713  
zEU[u7%  
import org.rut.util.algorithm.SortUtil; Q&.uL}R  
0zNbux_  
/** @\w}p E  
* @author treeroot {)"[_<  
* @since 2006-2-2 V3ozaVk;  
* @version 1.0 ]O@iT= *3  
*/ W9]z]6  
public class ShellSort implements SortUtil.Sort{ BeLD`4K  
Rm=p}  
/* (non-Javadoc) (a#gCG\  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %<-OdyM  
*/ .2c/V  
public void sort(int[] data) { I+H~ 5zq.  
for(int i=data.length/2;i>2;i/=2){ sR1_L/.  
for(int j=0;j insertSort(data,j,i); g8uqW1E^  
} =oI[E~1<  
} z(LR!hr  
insertSort(data,0,1); KxK,en4)+  
} cZ_)'0  
7ivo Q  
/** ^%,{R},s  
* @param data YA$YT8iMe  
* @param j ,5v'hG  
* @param i =xm7i#1  
*/ U\Vg&"P  
private void insertSort(int[] data, int start, int inc) {  j5/pVXO  
int temp; x4_MbUe  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ^+D/59I  
} I`{*QU  
} nQmHYOF%  
} q~ a FV<Q  
nSyLt6zn\  
} +]cf/_8+s  
} doAeTZ  
快速排序: 0\XWdTj{  
eZOR{|z  
package org.rut.util.algorithm.support; .4^+q9M  
_aevaWtEx  
import org.rut.util.algorithm.SortUtil; ^}Vc||S  
}y6@YfV${  
/** nDdY~f.B  
* @author treeroot ~'lT8 n_  
* @since 2006-2-2 IOZw[9](+  
* @version 1.0 Ztmh z_u7  
*/ =!q]0#  
public class QuickSort implements SortUtil.Sort{ F2}Fuupb.  
ybiTWM  
/* (non-Javadoc) 7JBs7LG  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pF8$83S  
*/ t$nJmfzm  
public void sort(int[] data) { k)-+ZmMOh  
quickSort(data,0,data.length-1); 0RA#Y(IR  
} B{&W|z{$  
private void quickSort(int[] data,int i,int j){ `[5xncZ-  
int pivotIndex=(i+j)/2; { .$7g8]I  
file://swap mv99SOe[Fz  
SortUtil.swap(data,pivotIndex,j); g@^y$wt  
U!q2bF<@  
int k=partition(data,i-1,j,data[j]); x t-s"A  
SortUtil.swap(data,k,j); b5)^g+8)w  
if((k-i)>1) quickSort(data,i,k-1); m8F$h-  
if((j-k)>1) quickSort(data,k+1,j); >hNSEWMY`  
1ARtFR2C{b  
} }{N#JTmjB#  
/** a%Q`R;W  
* @param data c qCNk  
* @param i ):PN0.H8  
* @param j %cn 1d>M+I  
* @return 6"G(Iq'2t3  
*/ Y^Buz<OiG  
private int partition(int[] data, int l, int r,int pivot) { &*OwoTgk+  
do{ :ir#7/  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); HjA~3l7  
SortUtil.swap(data,l,r); E~}H,*)  
} M,JwoKyg  
while(l SortUtil.swap(data,l,r); }PK4 KRn  
return l; K*j OrQf`  
} o4p5`jOG@  
#6\m TL4vg  
} 3g!Z[SZ  
\;Q(o$5<  
改进后的快速排序: Jn{)CZ  
P 2_!(FZ<l  
package org.rut.util.algorithm.support; C&Q[[k"kb  
gS<p~LPf  
import org.rut.util.algorithm.SortUtil; tRU/[?!  
>97YK =  
/** \@Cz 32wg  
* @author treeroot 0J'^<G TL  
* @since 2006-2-2 sZ=!*tb-  
* @version 1.0 L-E &m*%  
*/ F}l3\uC]  
public class ImprovedQuickSort implements SortUtil.Sort { _'cB<9P  
mH$`)i8  
private static int MAX_STACK_SIZE=4096; h81giY]  
private static int THRESHOLD=10; VgXT4gO!  
/* (non-Javadoc) (nLzWvN  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) uxxk&+M  
*/ [,Rc&7p~R  
public void sort(int[] data) { 1sg:8AA  
int[] stack=new int[MAX_STACK_SIZE]; wp}Q4I  
ys[xR=nbD  
int top=-1; k:?)0Uh%^  
int pivot; QaO9-:]eN  
int pivotIndex,l,r; #@ HlnF}T  
u|wl;+.  
stack[++top]=0; z{3`nd,  
stack[++top]=data.length-1; h$`m0-'  
HR?T  
while(top>0){ Wy-_}wqHg  
int j=stack[top--]; !q$VnqFk  
int i=stack[top--]; &w^9#L  
vGsAM* vw6  
pivotIndex=(i+j)/2; eMdP4<u  
pivot=data[pivotIndex]; Os[z >H?  
r jn:E  
SortUtil.swap(data,pivotIndex,j); Caj H;K\  
>uZc#Zt  
file://partition k 76<CX  
l=i-1;  Me z&@{  
r=j; UBW,Q+Q  
do{ D6lzc f  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); !)oQ9,N  
SortUtil.swap(data,l,r); K@n-#  
} m#WXZr  
while(l SortUtil.swap(data,l,r); 02EX_tt),  
SortUtil.swap(data,l,j); Yz2N(g[  
-l}"DP _  
if((l-i)>THRESHOLD){ S}Wj.l+F  
stack[++top]=i; h(kPf ]0  
stack[++top]=l-1; wclj9&k  
} jl}9R]Y_2  
if((j-l)>THRESHOLD){ J1(SL~e],  
stack[++top]=l+1; "\Dqtr w  
stack[++top]=j; Y!]a*==  
} a=ZVKb  
=k d-rIBc  
} J;XO1}9  
file://new InsertSort().sort(data); kJB:=iq/x$  
insertSort(data); zfDfy!\2_  
} el$@^Wy&$  
/** yqx!{8=V  
* @param data en|~`]HF  
*/ ~ 1TT?H  
private void insertSort(int[] data) { V(K;Gc  
int temp; t|V5[n!  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); j8Q_s/n  
} eptw)S-j  
} :KC]1_zqR  
} <z60E vHg  
7>zUT0SS  
} [H!do$[>  
@P0rNO %y  
归并排序: 5/6Jq  
N4qBCBr(  
package org.rut.util.algorithm.support; jXmY8||w  
r-S%gG}~E  
import org.rut.util.algorithm.SortUtil; v" #8^q  
Edc3YSg%;  
/** 7?g({]  
* @author treeroot  IN6L2/Q  
* @since 2006-2-2 ]4c*Nh%8  
* @version 1.0 "MzBy)4Q  
*/ H;a) `R3  
public class MergeSort implements SortUtil.Sort{ D dwFKc&  
*>aVU'  
/* (non-Javadoc) @ukL! AV?Y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~)pZ5%C  
*/ o:UNSr  
public void sort(int[] data) { )RFY2 }  
int[] temp=new int[data.length]; Ot=nKdP}D  
mergeSort(data,temp,0,data.length-1); 'Kmf6iK>[  
} 1)}hzA  
u-.5rH l  
private void mergeSort(int[] data,int[] temp,int l,int r){ #Q_Scxf  
int mid=(l+r)/2; !j  #8zN  
if(l==r) return ; Qg1kF^=  
mergeSort(data,temp,l,mid); Iw] ylp  
mergeSort(data,temp,mid+1,r); =saRh)EM  
for(int i=l;i<=r;i++){  fZap\  
temp=data; =j w?*  
} d+h~4'ebv  
int i1=l; +`S_Gy  
int i2=mid+1; GRj [2I7:  
for(int cur=l;cur<=r;cur++){ ]n1#8T&<*z  
if(i1==mid+1) 3&[d.,/  
data[cur]=temp[i2++]; _W Hi<,-  
else if(i2>r) ;O>zA]Z8r  
data[cur]=temp[i1++]; V@z/%=PJ  
else if(temp[i1] data[cur]=temp[i1++]; 9. FXbNYg  
else eGKvzu  
data[cur]=temp[i2++]; kG4])qxC'  
} j/wQ2"@a  
} \ D>!&   
x^`P[>  
} LCIe1P2  
USgO`l\}4  
改进后的归并排序: p+nB@fN/  
B;iJ$gt]  
package org.rut.util.algorithm.support; l:~ >P[  
Sd I>  
import org.rut.util.algorithm.SortUtil; jv29,46K  
bB/fU7<{)u  
/** 66W J=? JV  
* @author treeroot BUL<FTg  
* @since 2006-2-2 Cvt/ot-J?  
* @version 1.0 F` gK6;zp  
*/ A] 'XC"lS  
public class ImprovedMergeSort implements SortUtil.Sort { .db:mSrL  
hE,-CIRg  
private static final int THRESHOLD = 10; ^8ilUu  
#8vl2qWbi  
/* -idbR[1{?  
* (non-Javadoc) #="Lr4T  
* >Wd=+$!I  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *g'%5i1ed  
*/ oO &%&;[/A  
public void sort(int[] data) { %t.\J:WN;  
int[] temp=new int[data.length]; N- <,wUxf  
mergeSort(data,temp,0,data.length-1); ?6\A$?  
} 9,>c;7s X  
QUXr#!rPY|  
private void mergeSort(int[] data, int[] temp, int l, int r) { XGnC8Be{4  
int i, j, k; R6GlQ G  
int mid = (l + r) / 2; hR[_1vuIu  
if (l == r) ey>tUmt6?  
return; >"]t4]GVf  
if ((mid - l) >= THRESHOLD) cE,,9M@^  
mergeSort(data, temp, l, mid); 1X&scVw  
else "Q.C1#W}.  
insertSort(data, l, mid - l + 1); xJ\sm8  
if ((r - mid) > THRESHOLD) CF_2ez1u0y  
mergeSort(data, temp, mid + 1, r); bM W}.v!  
else *$t=Lh  
insertSort(data, mid + 1, r - mid); 7W/55ZTmJ  
1OK~*=/4  
for (i = l; i <= mid; i++) { y>J6)F =  
temp = data; !r*JGv=  
} .,p@ee$q  
for (j = 1; j <= r - mid; j++) { 'A/{7*,  
temp[r - j + 1] = data[j + mid]; Co<F<eXe  
} B]#iZ,Tp  
int a = temp[l]; #@M'*X_%}K  
int b = temp[r]; 51s3hX$  
for (i = l, j = r, k = l; k <= r; k++) { dlV HyCW  
if (a < b) { TPKm>5g  
data[k] = temp[i++]; _(@ezX.p  
a = temp; b]Lp_t  
} else { :7qJ[k{g  
data[k] = temp[j--]; >hotkMX `3  
b = temp[j]; }"^d<dvuz  
} ~X) 1!Sr  
} K;g6V!U  
} w^ 8^0i-  
f1Gyl  
/** gEq";B%?  
* @param data Xr|e%]!**  
* @param l h4>q~&Pd  
* @param i Y-"7R>^I  
*/ q+67Wc=  
private void insertSort(int[] data, int start, int len) { g.Kyfs4`  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); .uo:fxbd2  
} 9aKCO4  
} _ba.oIc  
} 4':U rJ+  
} EhIa31>X  
Ymcc|u6$"  
堆排序: .Dyxul  
*ur[u*g  
package org.rut.util.algorithm.support; Zdu8axK:  
`hl1R3nBM  
import org.rut.util.algorithm.SortUtil; Wl>$<D4mO[  
9>L{K   
/** KSl@V>!_  
* @author treeroot \v.YP19  
* @since 2006-2-2 .t%` "C  
* @version 1.0 ^ G>/;mZ  
*/ =/^{Pn  
public class HeapSort implements SortUtil.Sort{ E K^["_*A  
u6p nO  
/* (non-Javadoc) V34]5  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) EDGAaN*Q  
*/ p~t5PU*(  
public void sort(int[] data) { +JBYGYN&K  
MaxHeap h=new MaxHeap(); b@N*W]  
h.init(data); bdyE9t   
for(int i=0;i h.remove(); HNL;s5gq  
System.arraycopy(h.queue,1,data,0,data.length); P/~kX_  
} mr#XN&e  
zJtB?<  
private static class MaxHeap{ ~VO?PfxZ  
:eTzjW=  
void init(int[] data){ 'ul~f$ V  
this.queue=new int[data.length+1]; 7`t[|o  
for(int i=0;i queue[++size]=data; k3B]u.Lo  
fixUp(size); PqwoZo0j  
} %-, -:e  
} = M/($PA  
8`  f=E h  
private int size=0; P'CDV3+  
.Vb\f  
private int[] queue; ! ^U!T\qDi  
`n`aA)|<  
public int get() { ef(OhIX  
return queue[1]; @D&}ZV=J  
} ePwoza  
0 8 aZU  
public void remove() { wWUt44:0O  
SortUtil.swap(queue,1,size--); ;Quk%6;[N  
fixDown(1); y@Ga9bI7  
} YumHECej  
file://fixdown hj-#pL-t  
private void fixDown(int k) { 3SWO_  
int j; [n;GP@A ]R  
while ((j = k << 1) <= size) { /N(Ol WEp  
if (j < size %26amp;%26amp; queue[j] j++; .UJjB}4$f  
if (queue[k]>queue[j]) file://不用交换  Wfyap)y  
break; M8' GbF=1  
SortUtil.swap(queue,j,k); sAU!u  
k = j; 0hx EI  
} niP/i  
} Sg}]5Mn`  
private void fixUp(int k) { aJ}Cq k  
while (k > 1) { h; 8^vB y  
int j = k >> 1; )o@-h85";  
if (queue[j]>queue[k]) :%vD hMHa  
break; ZAcW@xfb  
SortUtil.swap(queue,j,k); By-A1|4Cp`  
k = j; !9JK95;  
} Oe*+pReSD  
} 2OJ=Xb1  
_; ].  
} ^qlfdf  
|LNAd:0  
} j?rq%rQd  
~%o?J"y  
SortUtil: $Sfx0?'  
\%D/]"@r  
package org.rut.util.algorithm; h q& 2o  
?sBbe@OC?  
import org.rut.util.algorithm.support.BubbleSort; #4<Rs|K  
import org.rut.util.algorithm.support.HeapSort; *w;=o}`  
import org.rut.util.algorithm.support.ImprovedMergeSort; 89{@2TXR  
import org.rut.util.algorithm.support.ImprovedQuickSort; _~b$6Nf!83  
import org.rut.util.algorithm.support.InsertSort; ,| EaW& 2  
import org.rut.util.algorithm.support.MergeSort; =W~K_jE5lo  
import org.rut.util.algorithm.support.QuickSort; w %sHA  
import org.rut.util.algorithm.support.SelectionSort; tag~SG`ov  
import org.rut.util.algorithm.support.ShellSort; }TS4D={1  
+W P  
/** m!-,K8  
* @author treeroot D.\s mk  
* @since 2006-2-2 : {Crc   
* @version 1.0 J3B]JttU  
*/ ;0f?-W?1  
public class SortUtil { 'YcoF;&[C  
public final static int INSERT = 1; gqf*;Z eU  
public final static int BUBBLE = 2; T]tG,W1>i  
public final static int SELECTION = 3; [:!D.@h|  
public final static int SHELL = 4; g^EkRBU  
public final static int QUICK = 5; ^K K6 d  
public final static int IMPROVED_QUICK = 6; a:(.{z?nM  
public final static int MERGE = 7; s1eGItx[w  
public final static int IMPROVED_MERGE = 8; g :me:M  
public final static int HEAP = 9; m pWmExQ  
K8UgP?c;0  
public static void sort(int[] data) { elBmF#,j 7  
sort(data, IMPROVED_QUICK); _g(4-\  
} &_EjP hZ  
private static String[] name={ T]%:+_,  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" phA^ kdW  
}; $m;rOKVU  
KF[P /cFI  
private static Sort[] impl=new Sort[]{ MH>CCT  
new InsertSort(), /J"U`/ {4  
new BubbleSort(), [z1[4  
new SelectionSort(), T53|*~u  
new ShellSort(), .D`""up|{  
new QuickSort(), G3&l|@5  
new ImprovedQuickSort(), P'4jz&4  
new MergeSort(), mqg[2VTRP  
new ImprovedMergeSort(), [o=v"s't)  
new HeapSort() ^sNj[%I R  
}; \666{.a  
j<LDJi>O  
public static String toString(int algorithm){ |\OG9{q  
return name[algorithm-1];  OBY  
} Q( C\X  
prC1<rm  
public static void sort(int[] data, int algorithm) { }!-K)j.  
impl[algorithm-1].sort(data); C>vp oCA  
} :Sx!jx>W  
)PU?`yLTr  
public static interface Sort { #UcqKq  
public void sort(int[] data); K 0i[D"  
} D4x~Vk%H  
x*A_1_A  
public static void swap(int[] data, int i, int j) { Ifm|_  
int temp = data; 8tM40/U$  
data = data[j]; 0!c^pOq6  
data[j] = temp; qe!\ oh  
} S 'jH  
} u*ZRU 4 U  
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:
3+5=?,请输入中文答案:八 正确答案:八