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
  • 5679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。 `oP :F[B  
插入排序: W|J8QNL?jm  
;n_|t/=  
package org.rut.util.algorithm.support; ,2T&33m  
tZmo= 3+:  
import org.rut.util.algorithm.SortUtil; <a7y]Py  
/** y?j#;n0  
* @author treeroot HbQ `b  
* @since 2006-2-2 i:W.,w%8  
* @version 1.0 [2I1W1pd  
*/ Xh"JyDTj3  
public class InsertSort implements SortUtil.Sort{ NfizX!w&  
)*@n G$i99  
/* (non-Javadoc) 3wK{?  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }}y$T(:l  
*/ X@KF}x's  
public void sort(int[] data) { p\OUxAm  
int temp; h<2o5c|  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); x`K<z J   
} "&*O7cs$pA  
} SskvxH+7  
} f*KNt_|:  
[:<CgU9C  
} KM$L u2  
/NfuR$oMd  
冒泡排序: }SYR)eE\  
]V*s-och'  
package org.rut.util.algorithm.support; :U_k*9z}=  
!_CBf#0  
import org.rut.util.algorithm.SortUtil; 3Ob"R%Yo  
vI3L <[W  
/** i"mN0%   
* @author treeroot "L^]a$&  
* @since 2006-2-2 a^_\#,}  
* @version 1.0 0nUcUdIf+  
*/ F#_JcEE  
public class BubbleSort implements SortUtil.Sort{ 0 `%eP5  
\M0-$&[+Z  
/* (non-Javadoc) P34UD:  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7(cRm$)L  
*/ 1!_$HA  
public void sort(int[] data) { [.Vy  
int temp; Z5 iP1/&D  
for(int i=0;i for(int j=data.length-1;j>i;j--){ _/Ky;p.  
if(data[j] SortUtil.swap(data,j,j-1); Xkc y~e  
}  tKOTQ8i4  
} R:c$f(aKv%  
} &R+/Ie#0dz  
} @9_H4V  
.4E5{F{~  
} Q\.~cIw_AQ  
x`n$4a'7b  
选择排序: _N!L?b83P  
2"+8NfFl  
package org.rut.util.algorithm.support; yh0zW $  
 *R1 m=  
import org.rut.util.algorithm.SortUtil; IcmTF #{D  
AyHhq8Y  
/** }jHS  
* @author treeroot MH@=Qqx#=t  
* @since 2006-2-2 <,!8xp7,~  
* @version 1.0 r4&g~+ck  
*/ pu#h:nb>88  
public class SelectionSort implements SortUtil.Sort { | a001_Wv  
Wno{&I63  
/* (;DnL|"'8  
* (non-Javadoc) lId}sf   
* (jb9Uk_t  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) D5lzrpg_e  
*/ dqF]kP,VG  
public void sort(int[] data) { q"){P RTm/  
int temp; n N.6?a  
for (int i = 0; i < data.length; i++) { BUcPMF%\y:  
int lowIndex = i; vbEAd)*S  
for (int j = data.length - 1; j > i; j--) { )!SA]>-  
if (data[j] < data[lowIndex]) { 'fpm] *ig  
lowIndex = j; Y'-@O"pK  
} OsI>gX>  
} l;{n" F  
SortUtil.swap(data,i,lowIndex); %N5gQXg  
} :/YHU3~Y  
} @BQJKPF*  
x\( @ v  
} iF]G$@rbU  
We%HdTKT  
Shell排序: qTc-Z5  
%siBCjvo=  
package org.rut.util.algorithm.support; <Y%km[Mh  
38ac~1HjE  
import org.rut.util.algorithm.SortUtil; Gy}WZ9{  
}!_x\eq^  
/** Jr|"QRC  
* @author treeroot ~,#zdm1r@  
* @since 2006-2-2 l0Rjq*5hJ  
* @version 1.0 \"=4)Huv  
*/ +xoh=m  
public class ShellSort implements SortUtil.Sort{ a)L\+$@*  
581Jp'cje  
/* (non-Javadoc)  TA;r  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ."`mh&+`  
*/ /QuuBtp  
public void sort(int[] data) { NTq#'O) f  
for(int i=data.length/2;i>2;i/=2){ ,Dh+-}  
for(int j=0;j insertSort(data,j,i); KX8$j$yW  
} FPAy.cljJ  
} Qm9r>m6p@N  
insertSort(data,0,1); >ZRCM  
} {#?$ p i[  
vNdMPulr{  
/** <'(O0  
* @param data ~x67v+I  
* @param j ;B Lw?kf  
* @param i GSlvT:k  
*/ [=3f:>ssm  
private void insertSort(int[] data, int start, int inc) { /hrVnki*  
int temp; *[XVkt`H  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ,_SE!iL  
} #B_Em$  
} {7EnM1]  
} wY$'KmNW  
".0~@W0  
} = ;tDYuFc!  
$a / jfpV  
快速排序: Oe#*-  
(29h{=P'  
package org.rut.util.algorithm.support; qH 1k  
~vL7$-:  
import org.rut.util.algorithm.SortUtil; ^wnlZ09J  
5a8[0&hA 2  
/** IZ9L ;"}  
* @author treeroot R\i8O^[  
* @since 2006-2-2 s,z$Vt"h*K  
* @version 1.0 ^)i5.o\  
*/ A=N &(k  
public class QuickSort implements SortUtil.Sort{ He&7(mQ0^  
WA'4y\N  
/* (non-Javadoc) UQ X.  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *yx5G-#?  
*/ 0cGO*G2Xr  
public void sort(int[] data) { `5SLo=~  
quickSort(data,0,data.length-1); =`&7pYd,  
} :A,g:B  
private void quickSort(int[] data,int i,int j){ [nSlkl   
int pivotIndex=(i+j)/2; mZ%"""X\Ei  
file://swap f{i~hVF  
SortUtil.swap(data,pivotIndex,j); 2Ra}&ie  
HACY  
int k=partition(data,i-1,j,data[j]); p* '%<3ml  
SortUtil.swap(data,k,j); Wi;wu*  
if((k-i)>1) quickSort(data,i,k-1); )Bz2-|\  
if((j-k)>1) quickSort(data,k+1,j); d17RJW%A  
[quT&E  
} @%FLT6MY  
/** Q4;%[7LU  
* @param data (ncm]W  
* @param i jH5VrN*Q  
* @param j 0\B31=N(  
* @return # 1,"^k^  
*/ >]ghme  
private int partition(int[] data, int l, int r,int pivot) { \`kH2`  
do{ h)NZG6R  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); / 5\gP//9K  
SortUtil.swap(data,l,r); 7O.?I# 76  
} S]"U(JmW\  
while(l SortUtil.swap(data,l,r); P0mY/bBU  
return l; MbT;]Bo  
} p1BMQ?=($  
&EUI  
} d O})#50f  
hRU5CH/!  
改进后的快速排序: v47S9Vm+  
CjQ)Bu *4  
package org.rut.util.algorithm.support; "e-RV  
"VIoV u  
import org.rut.util.algorithm.SortUtil; (GCeD-  
e> zv+9'Q  
/** Wx8oTN  
* @author treeroot Z&Qz"V>$  
* @since 2006-2-2 9Z[EzKd<~'  
* @version 1.0 Y^Y1re+}  
*/ 1WP(=7$.  
public class ImprovedQuickSort implements SortUtil.Sort { /%9Ge AAs  
qOqU CRUe:  
private static int MAX_STACK_SIZE=4096; Xn%ty@8  
private static int THRESHOLD=10; hvFXYq_[O  
/* (non-Javadoc) @H83Ad  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) q,Nhfo(  
*/ |T; ]%<O3E  
public void sort(int[] data) { Au\j6mB  
int[] stack=new int[MAX_STACK_SIZE]; Lu][0+-  
swTur  
int top=-1; RV_(T+  
int pivot; %U uVD  
int pivotIndex,l,r; $bCN;yE  
.%"s| D  
stack[++top]=0; ahUc ;S:v#  
stack[++top]=data.length-1; }x~1w:z Hd  
 Lw1aG;5  
while(top>0){ /cXVJ(#j  
int j=stack[top--]; {CaTu5\  
int i=stack[top--]; au;ZAXM|  
(DnrJ.QU}t  
pivotIndex=(i+j)/2; 2?}5U)Hg  
pivot=data[pivotIndex]; \RF{ITV$kD  
LkwjEJQf  
SortUtil.swap(data,pivotIndex,j); sX c|++  
h>:eu#  
file://partition +7V4mF!u  
l=i-1; }o:sU^Pwa  
r=j; >qL-a*w:a  
do{ 2R`dyg  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ?= R C?K  
SortUtil.swap(data,l,r); vU9j|z  
} MXP3Z N'  
while(l SortUtil.swap(data,l,r); 3 q^^Os  
SortUtil.swap(data,l,j); X+%5q =N  
!uc"|S?  
if((l-i)>THRESHOLD){ K\VL[HP-  
stack[++top]=i; wfMtWXd;KB  
stack[++top]=l-1; sQ aP:@  
} X4$86  
if((j-l)>THRESHOLD){ P$H9  
stack[++top]=l+1; isR)^fI|  
stack[++top]=j; 45(n!"u65  
} +?%L X4Y  
U{Xx)l/o  
} YVW`|'7)|  
file://new InsertSort().sort(data); z#u<]] 5  
insertSort(data); N]|P||fC  
} %NH{%K,  
/** l\DcXgD x  
* @param data xV\mS+#  
*/ 50R&;+b  
private void insertSort(int[] data) { uG^RU\(  
int temp; *>,#'C2  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); mM;5UPbZ  
} T$pBgS>  
} L3J .Oh  
} r"hogmFD;  
}1BpIqee  
} 2PDU(R  
d8Sr,t+  
归并排序: y3Q2d7G  
#HyE-|_C  
package org.rut.util.algorithm.support; ;Ob`B@!=b  
2S@aG%-)  
import org.rut.util.algorithm.SortUtil; gw_]Y^U  
I=c}6  
/** f2]O5rX p  
* @author treeroot TD^w|U.  
* @since 2006-2-2 pRc<U^Z.h  
* @version 1.0 =%ry-n G  
*/ ;a9`z+ K  
public class MergeSort implements SortUtil.Sort{ ;NPbEPL[5  
 )k6O  
/* (non-Javadoc) @#1T-*  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =2&Sw(6j  
*/ Z~Vups#+f  
public void sort(int[] data) { 8-geBlCE,  
int[] temp=new int[data.length]; &<$YR~g5j$  
mergeSort(data,temp,0,data.length-1); /s[D[:P_  
} %<rV~9:  
D:.1Be`Tv  
private void mergeSort(int[] data,int[] temp,int l,int r){ 9~|hGo  
int mid=(l+r)/2; PCX X[N  
if(l==r) return ; h 7  c  
mergeSort(data,temp,l,mid); E,gpi  
mergeSort(data,temp,mid+1,r); Bxf]Lu,\U@  
for(int i=l;i<=r;i++){ v[!ZRwk4w3  
temp=data; #Nv)SCc  
} 'FC#O%l  
int i1=l; }~+_|  
int i2=mid+1; 7T/hmVi_  
for(int cur=l;cur<=r;cur++){ U%4 s@{7  
if(i1==mid+1) ATkx_1]KM-  
data[cur]=temp[i2++]; )9~-^V0A^>  
else if(i2>r) @mm~i~~KA  
data[cur]=temp[i1++]; b Sm*/Q  
else if(temp[i1] data[cur]=temp[i1++]; Cp!Qd e  
else ]MaD7q>+R  
data[cur]=temp[i2++]; .3:s4=(f  
} "jA?s9  
} $(N+E,XB  
wdLlQD  
} +WfO2V.  
<-s5 ;xwtS  
改进后的归并排序: D]*<J"/]d  
q 7aH=dhw  
package org.rut.util.algorithm.support; $e/[!3CASP  
kx6-8j3gD7  
import org.rut.util.algorithm.SortUtil; /;V:<mekf  
b6ui&Y8z  
/** ^hyp}WN  
* @author treeroot :#nv:~2]  
* @since 2006-2-2 ^#p+#_*V  
* @version 1.0 K<~J*k<v  
*/ ^/:G`'  
public class ImprovedMergeSort implements SortUtil.Sort { 4Tn97G7  
?7cT$/4  
private static final int THRESHOLD = 10; R|JBzdK+P  
|0s)aV|K  
/* XFJz\'{  
* (non-Javadoc) [l:}#5\]4  
* n"|1A..^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) vfpK|=[7o  
*/ du_TiI  
public void sort(int[] data) { WEsX+okj  
int[] temp=new int[data.length]; )Bpvi4O  
mergeSort(data,temp,0,data.length-1); ?8TIPz J  
} BU=;rz!;  
oQ/ Dg+Xp  
private void mergeSort(int[] data, int[] temp, int l, int r) { 7CV}QV}G  
int i, j, k; S0jYk (  
int mid = (l + r) / 2; 0;n}{26a  
if (l == r) p{W'[A{J .  
return; g$9EI\a  
if ((mid - l) >= THRESHOLD) %Z!3[.%F  
mergeSort(data, temp, l, mid); Rw]lW;EN<  
else A#x_>fV  
insertSort(data, l, mid - l + 1); 6< @F  
if ((r - mid) > THRESHOLD) MwO`DrV  
mergeSort(data, temp, mid + 1, r); ~X<Ie9m1x  
else Cs?[   
insertSort(data, mid + 1, r - mid); Lf0Wc'9{  
E`gUNAKQ  
for (i = l; i <= mid; i++) { 1# ;`1i  
temp = data; a@s@E  
} ^7,`6g  
for (j = 1; j <= r - mid; j++) { {qbx iL-  
temp[r - j + 1] = data[j + mid]; jQ&82X%m  
} Msl8o c  
int a = temp[l]; tEjT$`6hp  
int b = temp[r]; E .%_i8s  
for (i = l, j = r, k = l; k <= r; k++) { 6o=Q;Mezl  
if (a < b) { 7J[s5'~|  
data[k] = temp[i++]; LY1dEZ-)A  
a = temp; Jt|W%`X>D  
} else { l#^weXSlk  
data[k] = temp[j--]; "c*&~GSE4  
b = temp[j]; r"_SL!,^  
} (^mpb  
} _}3NLAqg  
} 3JXKp k?   
Kp?j\67S  
/** >A ?{cbJ  
* @param data &N:`Rler  
* @param l NhF<2[mt  
* @param i {/}p"(^  
*/ ~LSD\+  
private void insertSort(int[] data, int start, int len) { iiD }2y b  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); i[ 40p!~  
} *G(ZRj@ 33  
} ~%d*#Yxq  
} EB2 5N~7  
} b|E1>TkY  
*7UDTgY  
堆排序: -I*NS6  
%h "%G=:  
package org.rut.util.algorithm.support; o*Kl`3=]  
.XPPd?R  
import org.rut.util.algorithm.SortUtil; c(r8 F[4w  
eiwPp9[08  
/** *Vr;rk  
* @author treeroot Xot2L{EIUE  
* @since 2006-2-2 +~f5dJyk`  
* @version 1.0 1YJ@9*l  
*/ I_3{i`g  
public class HeapSort implements SortUtil.Sort{ Q5>]f/LD  
1,Ji|&Pwf  
/* (non-Javadoc) Bl*.N9*  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) w i=&W  
*/ mt*/%>@7R  
public void sort(int[] data) { G[ gfD\  
MaxHeap h=new MaxHeap(); Zt"3g6S  
h.init(data); YT\.${N  
for(int i=0;i h.remove(); r"W,G /;h  
System.arraycopy(h.queue,1,data,0,data.length); aa,^+^J  
} dO|n[/qL0  
|nT+ W| 0U  
private static class MaxHeap{ idSc#n22  
;`:A(yN]T  
void init(int[] data){ /`VrV{\/!  
this.queue=new int[data.length+1]; KvkU]s_  
for(int i=0;i queue[++size]=data; |$ &v)  
fixUp(size); dZ%rmTE(H  
} {<L|Z=&k`  
} '/ *;g#W=  
x}X hL  
private int size=0; $E h:m&hq  
 PpWdZ  
private int[] queue; [28Vf"#]  
<g'0q*qE  
public int get() { x{I, gu|+  
return queue[1]; ZZJ<JdD  
} .kZ<Q]Vk  
-PLh|  
public void remove() { MHF7hk ps}  
SortUtil.swap(queue,1,size--); tde&w=ec  
fixDown(1); F%`O$uXA  
} TDZ p1zpXb  
file://fixdown DA9f\q   
private void fixDown(int k) { 26[m7\O  
int j; JYO("f  
while ((j = k << 1) <= size) { :BpXi|n;  
if (j < size %26amp;%26amp; queue[j] j++; }E&48$0h  
if (queue[k]>queue[j]) file://不用交换 FN"Ye*d  
break; #Z1 <lAy  
SortUtil.swap(queue,j,k); *rv7#!].  
k = j; MoMxKmI  
} WI\jm&H r  
} $[{YE[a  
private void fixUp(int k) { 7Kn}KO!Y8  
while (k > 1) { uE-|]QQo  
int j = k >> 1; W'L  
if (queue[j]>queue[k]) I/Q~rVt  
break; xa$4P [  
SortUtil.swap(queue,j,k); Bf8[(oc~  
k = j; f2G 3cg~H  
} I,@ 6w  
} Tjj-8cg  
)UN_,'H/V  
} R-OQ(]<*  
7p[NuU*Gg  
} (%SKTM  
)2: ,E  
SortUtil: 4v;KtD;M  
]Pf!wv  
package org.rut.util.algorithm; iKA}??5e  
KSxZ4Y  
import org.rut.util.algorithm.support.BubbleSort; "T1A$DKw+R  
import org.rut.util.algorithm.support.HeapSort; ;>r E+k%_  
import org.rut.util.algorithm.support.ImprovedMergeSort; p}(pIoyUF  
import org.rut.util.algorithm.support.ImprovedQuickSort; BT* {&'\/  
import org.rut.util.algorithm.support.InsertSort; %hN7K  
import org.rut.util.algorithm.support.MergeSort; J{e`P;ND  
import org.rut.util.algorithm.support.QuickSort; { \ ]KYI0  
import org.rut.util.algorithm.support.SelectionSort; lnv&fu`1P  
import org.rut.util.algorithm.support.ShellSort; t 4>\ ;  
%eW2w@8]  
/** ^17i98w  
* @author treeroot ~w"e 2a  
* @since 2006-2-2 +r$M 9  
* @version 1.0 h_\OtoRa  
*/ mV#U=zqb!S  
public class SortUtil { ]7J*(,sp  
public final static int INSERT = 1; /A1qTG=Br  
public final static int BUBBLE = 2; cd]def[d  
public final static int SELECTION = 3; A&L2&ofV&q  
public final static int SHELL = 4; +XpQ9Cd  
public final static int QUICK = 5; cg_j.=M-  
public final static int IMPROVED_QUICK = 6; OTD<3Q q  
public final static int MERGE = 7; #y*p7~|@  
public final static int IMPROVED_MERGE = 8; 5m9;'SF  
public final static int HEAP = 9; _E8doV  
g-DFcwO,V  
public static void sort(int[] data) {  [1g   
sort(data, IMPROVED_QUICK); s(cC ;  
} ~$]Puv1V>  
private static String[] name={ 5;X3{$y  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" qv)%)n  
}; g [c ^7  
{"mb)zr  
private static Sort[] impl=new Sort[]{ >N-l2?rE  
new InsertSort(), ".sRi  
new BubbleSort(), kS< 9cy[O  
new SelectionSort(), nJcY>Rp?  
new ShellSort(), QS%t:,0lp  
new QuickSort(), Y%Tm `$^V  
new ImprovedQuickSort(), j6#Vwcr  
new MergeSort(), To =JE}jzo  
new ImprovedMergeSort(), =PYS5\k  
new HeapSort() CSlPrx2\  
}; |Pq z0n=v  
]:svR@E  
public static String toString(int algorithm){ q*7:L  
return name[algorithm-1]; z, c=."<z  
} H-t"Z}  
s7s@!~  
public static void sort(int[] data, int algorithm) { lX/:e=  
impl[algorithm-1].sort(data); wG X\ub#!  
} Y{OnW98  
Tzr'3m_  
public static interface Sort { :&BE-f  
public void sort(int[] data); F5%IsAH  
} AYv7- !Yk  
n7pjj  
public static void swap(int[] data, int i, int j) { ]:.9:RmEV  
int temp = data; x\5v^$  
data = data[j]; %s ">:  
data[j] = temp; :|\)=4  
} w:/QB-`%  
} 2-beq<I  
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
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八