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
  • 8682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。 TXDb5ZCzM  
插入排序: `& (Fy  
NW=tZVQ<X  
package org.rut.util.algorithm.support; uJX(s6["=  
Zt7Gf  
import org.rut.util.algorithm.SortUtil; |:{H4  
/** Pp9nilb_(  
* @author treeroot Hc"FW5R  
* @since 2006-2-2 (qQ|s@O  
* @version 1.0 |vLlEN/S  
*/ u}L;/1,B  
public class InsertSort implements SortUtil.Sort{ &8^1:CcE  
SyWLPh  
/* (non-Javadoc) 4-dV%DgC  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {k#RWDespy  
*/ 4\?GA`@  
public void sort(int[] data) { C $r]]MSj  
int temp; G'\x9%  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); *wY { ~zh  
} nOE 1bf^l  
} kpU-//lk+  
} ti}g?\VT  
$!-a)U,w$B  
} J91O$szA  
M^$liS.D  
冒泡排序: w' gKE'c  
V.8pxD5 s  
package org.rut.util.algorithm.support; mn;Wqb/  
&\_cU?0d  
import org.rut.util.algorithm.SortUtil; 0k7kmDW  
~=pAy>oV  
/** #!n"),3  
* @author treeroot +mqz)-x  
* @since 2006-2-2 5{@Hpj/B  
* @version 1.0 xr<.r4  
*/  K#LG7faj  
public class BubbleSort implements SortUtil.Sort{ RlH~<|XK  
nLfITr|5  
/* (non-Javadoc) ]rs7%$ZW  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H |K}m,g  
*/ =%Yw;% 0)Y  
public void sort(int[] data) { yN Bb(!u  
int temp; -UhGacw  
for(int i=0;i for(int j=data.length-1;j>i;j--){ IRxFcLk  
if(data[j] SortUtil.swap(data,j,j-1); fjh0Z i45  
} 1 iWe&I:  
} 8UANB]@Y}  
} s7~[7  
} DwL4?!E  
@A-^~LoP.  
} 2\: z   
5 1\N+  
选择排序: ]("5O V5  
wv~?<DF  
package org.rut.util.algorithm.support; OGjeE4  
)ZI9n7  
import org.rut.util.algorithm.SortUtil; r,` 59  
tluyx  
/** '[6o(~ *  
* @author treeroot @fVCGV?'  
* @since 2006-2-2 {m&8Viq1  
* @version 1.0 I'NE>!=Q  
*/ ;~>E^0M  
public class SelectionSort implements SortUtil.Sort { 96&Y  
*Y@)t* -a  
/* +-|D$@8S  
* (non-Javadoc) -'sn0 _q/e  
*  );cu{GY  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) vX'@we7Q{  
*/  EK:s#  
public void sort(int[] data) { ;AwQpq>dy  
int temp; P9RIX;A=  
for (int i = 0; i < data.length; i++) { ;goR0PN  
int lowIndex = i; U;_b4S:  
for (int j = data.length - 1; j > i; j--) { qhPvU( ,  
if (data[j] < data[lowIndex]) { V@(7K0  
lowIndex = j; ARZ5r48)  
} ly{Q>MBM  
} 0F\ e*{gc  
SortUtil.swap(data,i,lowIndex); P0En&g+~  
} x*9CK8o=  
} ZL-YoMHc+_  
'|\et aD  
} SseMTw:  
&y}nd 7o  
Shell排序: g8_C|lVZi  
B3P#p^  
package org.rut.util.algorithm.support; LE|*Je3a  
&dino  
import org.rut.util.algorithm.SortUtil; :LuzKCvBP  
JVORz-uBs  
/** #0hX'8];(  
* @author treeroot nVTCbV  
* @since 2006-2-2 >}43xIRRCq  
* @version 1.0 H9["ZRL,Q  
*/ YGA( "<  
public class ShellSort implements SortUtil.Sort{ qX GAlCq@  
::xH C4tw  
/* (non-Javadoc) _PPW9US{  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >tq,F"2amC  
*/ 9P3jx)K  
public void sort(int[] data) { .3B3Z&vr  
for(int i=data.length/2;i>2;i/=2){ ? Q`Sx  
for(int j=0;j insertSort(data,j,i); }^Unx W  
} e%v<nGN.-  
} jDp]}d|f)  
insertSort(data,0,1); @[qGoai  
} Q/%(&4>'y  
V0gk8wD  
/** 3q>6gaTv  
* @param data 5K;vdwSB  
* @param j [Z5Lgg&  
* @param i [\ M=w7  
*/ y1JxAj  
private void insertSort(int[] data, int start, int inc) { $>3/6(bW  
int temp; zs@#.OEH  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); z|Hc=AU8y  
} UH<nc;.B  
} ; )Vro  
} &AMW?vO  
ZwLD7j*)  
} b"ypS7 _  
n.{+\M6k  
快速排序: u7=jtB   
VK*2`Z1  
package org.rut.util.algorithm.support; D<rO:Er?*a  
VWlOMqL995  
import org.rut.util.algorithm.SortUtil; U8Pnt|0M  
R;P>_ei(LK  
/** <"uT=]wZ=  
* @author treeroot o@`& h} $  
* @since 2006-2-2 [mSK!Y@u  
* @version 1.0 jhWNMu  
*/ FQR{w  
public class QuickSort implements SortUtil.Sort{ 8?GS:+  
P&/PCSf  
/* (non-Javadoc) No)v&P%  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *-timVlaE  
*/ yqF$J"=|  
public void sort(int[] data) { nb:J"  
quickSort(data,0,data.length-1); JTw'ecFev  
} zX-6]j;  
private void quickSort(int[] data,int i,int j){ S8O^^jJq;  
int pivotIndex=(i+j)/2; GfAt-huL(  
file://swap T,72I  
SortUtil.swap(data,pivotIndex,j); ~-,P1 u!  
rSIb1zJ  
int k=partition(data,i-1,j,data[j]);  8@)/a  
SortUtil.swap(data,k,j); Hp_3BulS<  
if((k-i)>1) quickSort(data,i,k-1); iQczvn)"m  
if((j-k)>1) quickSort(data,k+1,j); <qzHMy Ai  
27-<q5q  
} um@RaU  
/** G .~Psw#  
* @param data *f~X wy"  
* @param i "hU'o&  
* @param j ^;3z9}9  
* @return v/]Bo[a  
*/ rl^_RI  
private int partition(int[] data, int l, int r,int pivot) { XelY?Ph,,  
do{ vgzNT4o  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); U9;C#9E  
SortUtil.swap(data,l,r); bA-=au?o5  
} '#SacJ\L7  
while(l SortUtil.swap(data,l,r); Q{Gi**<  
return l; 0@rrY  
} h:[PO6GdX  
k--.g(T  
} K1Tq7/N  
`zHtfox!  
改进后的快速排序: A6'G%of  
Urhh)i  
package org.rut.util.algorithm.support; $;%-<*Co  
Ga-AhP  
import org.rut.util.algorithm.SortUtil; "Hmo`EB0  
9YMUvd,u  
/** J{=by]-rD,  
* @author treeroot %-+lud  
* @since 2006-2-2 /vFw5KUu  
* @version 1.0 t_ &FK A  
*/ US+PI`  
public class ImprovedQuickSort implements SortUtil.Sort { >2 gemTy  
vN%zk(?T  
private static int MAX_STACK_SIZE=4096; n 5NkjhP~Z  
private static int THRESHOLD=10; w \pD'1e  
/* (non-Javadoc) QQKvy0?1  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) aWVJx@f  
*/ JBdZ]  
public void sort(int[] data) { y&\ J  
int[] stack=new int[MAX_STACK_SIZE]; raGov`  
xW{_c[oA  
int top=-1; ^;B vd!  
int pivot; h"KN)xi$  
int pivotIndex,l,r; '$~9~90?Z  
0-EhDGa]r  
stack[++top]=0; |b'fp1</  
stack[++top]=data.length-1; F;jl0)fBR=  
n{pS+u z  
while(top>0){ ~130"WQ;  
int j=stack[top--]; !3K6ew>Sf  
int i=stack[top--]; O qDLb  
KcVCA    
pivotIndex=(i+j)/2; \LRno3  
pivot=data[pivotIndex]; A>^\jIB>  
:|oH11 y  
SortUtil.swap(data,pivotIndex,j); 3|RfX  
)Y@  
file://partition ^;GJ7y&,d  
l=i-1; ecA[  
r=j; FsZF>vaV  
do{ G*e/Ft.wf8  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); `9eE139V='  
SortUtil.swap(data,l,r); \1f$]oS  
} ?gjM]Ki%:  
while(l SortUtil.swap(data,l,r); _ Onsfv  
SortUtil.swap(data,l,j); aYe,5dK>  
J'y*;@4l^:  
if((l-i)>THRESHOLD){ 5<Cu-X  
stack[++top]=i; Ul OoMGg  
stack[++top]=l-1; aT"q}UTK  
} yowvq4e  
if((j-l)>THRESHOLD){ JP9eNc[  
stack[++top]=l+1; Z~$=V:EA?  
stack[++top]=j; `!5 ZF@Q>e  
} Yd lXMddE  
{Q^P<  
} i NzoDmE*  
file://new InsertSort().sort(data); -G]\"ZGi  
insertSort(data); lu_ y9o^  
} MuYr?1<q  
/** #"%oz^~\  
* @param data |)i- c`x  
*/ Y1txI  
private void insertSort(int[] data) { gm9e-QIHK  
int temp; \?h +  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); #B|`F?o  
} M[D`)7=b  
} =)"60R7{  
} .Nr}V.?57  
 Yul-.X  
} @DfjeS)u^  
Bm"jf]  
归并排序: <r.f ?chf  
iSo+6gu   
package org.rut.util.algorithm.support; X1!m ]s(I  
dx}()i\@  
import org.rut.util.algorithm.SortUtil; "jmi "O*  
j/wG0~<kz  
/** \dCoY0Z ;  
* @author treeroot iN5~@8jAzz  
* @since 2006-2-2 eI8^T?  
* @version 1.0 Qs8iu`'  
*/ 5 |{0|mP  
public class MergeSort implements SortUtil.Sort{ e2UbeP  
Ps7(4%  
/* (non-Javadoc) +w:[By"  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) A1Mr  
*/ Jz 'm&mu  
public void sort(int[] data) { %I;ej{*c  
int[] temp=new int[data.length]; eI; %/6#  
mergeSort(data,temp,0,data.length-1);  gvYa&N  
} `,Q uO  
dgE|*1/0  
private void mergeSort(int[] data,int[] temp,int l,int r){ o\1"ux;b  
int mid=(l+r)/2; `Z>4}<~+  
if(l==r) return ; :}FMauHh  
mergeSort(data,temp,l,mid); $jo}?Y+  
mergeSort(data,temp,mid+1,r); N \[Cuh8Fe  
for(int i=l;i<=r;i++){ 37x2fnC  
temp=data; d"uR1 rTk  
} FVT_%"%C9  
int i1=l; ]plg@  
int i2=mid+1; '81$8xxdY  
for(int cur=l;cur<=r;cur++){ ,sP7/S)FR  
if(i1==mid+1) qbu Lcy3  
data[cur]=temp[i2++]; m*  |3  
else if(i2>r) {l.) *#O  
data[cur]=temp[i1++]; 'y}l9alF  
else if(temp[i1] data[cur]=temp[i1++]; xKEHN gen  
else tn+i5Eso  
data[cur]=temp[i2++]; *5sr\b4#S  
} 1Jc-hrN-  
} g&O%qX-  
5G'X\iR  
} ^4x(a&  
tx}{E<\>$  
改进后的归并排序: }:5r#Cd  
9yajtR  
package org.rut.util.algorithm.support; }7+G'=XI/  
N-]h+Cnyu  
import org.rut.util.algorithm.SortUtil; x&+/da-E/5  
{$bAs9L  
/** U: ~O^  
* @author treeroot !FZb3U@  
* @since 2006-2-2 ;B o2$  
* @version 1.0 > YKvwbCf8  
*/ :g}WN  
public class ImprovedMergeSort implements SortUtil.Sort { Ui@Q&%b  
,E$^i~OO  
private static final int THRESHOLD = 10; X_Is#&6;  
&48wa^d  
/* *I(>[m!  
* (non-Javadoc) Jj*XnL*  
* ,;y 5Mu8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {[61LQ6V9  
*/ UMpC2)5  
public void sort(int[] data) { )i0\U  
int[] temp=new int[data.length]; Ra&HzK?  
mergeSort(data,temp,0,data.length-1); `n Y!nh6!  
} |0ACapp!  
tk|Ew!M:  
private void mergeSort(int[] data, int[] temp, int l, int r) { 0qnToV;  
int i, j, k; hvQOwA;e  
int mid = (l + r) / 2; 2Y\,[$z  
if (l == r) B<xBuW  
return; M,8a$Mdqh  
if ((mid - l) >= THRESHOLD) K:c5Yq^  
mergeSort(data, temp, l, mid); lV]hjt-L 2  
else BOrfKtG\  
insertSort(data, l, mid - l + 1); ~zi6wu(3  
if ((r - mid) > THRESHOLD) @ >%I\  
mergeSort(data, temp, mid + 1, r); &=nwb4  
else Uxn_nh  
insertSort(data, mid + 1, r - mid); ~4.Tq{  
;3h[=hyS  
for (i = l; i <= mid; i++) { OvX z+C,  
temp = data; Z+' 7c|a  
} BR8z%R  
for (j = 1; j <= r - mid; j++) { .<gA a"  
temp[r - j + 1] = data[j + mid]; xv]P-q0  
} $T8Ni!#/C  
int a = temp[l]; <oS2a/Nd  
int b = temp[r]; #b4`Wcrj  
for (i = l, j = r, k = l; k <= r; k++) { .wtb7U;7  
if (a < b) { #yFDC@gH1  
data[k] = temp[i++]; ;}#tm9S;  
a = temp; 8O qG{jmG  
} else { n AQB  
data[k] = temp[j--]; *JZU 0Xb  
b = temp[j]; U`ey7   
} ,oT?-PC$z  
} LUna stA^  
} wr~# rfH  
MIub^ $<C  
/** .!\y<9  
* @param data 1RY}mq  
* @param l _FeLSk.  
* @param i  4>uz'j<  
*/ wz+  
private void insertSort(int[] data, int start, int len) { R{NmWj['Mg  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 'C]zB'H=  
} _&D I_'5q+  
} ^SpD)O{  
} WpP8J1KN[  
} br .jj  
{ .B^  
堆排序: bqJL@!T  
y-cRqIM  
package org.rut.util.algorithm.support; W( E!:  
f]^(|*6  
import org.rut.util.algorithm.SortUtil; S7P](F=n#  
F[ N{7C3  
/** sI, T"D?  
* @author treeroot YC - -&66  
* @since 2006-2-2 , b ,`;I  
* @version 1.0 1`Cr1pH  
*/ z\*ii<- @  
public class HeapSort implements SortUtil.Sort{ v*7}ux8  
|y)Rlb# d  
/* (non-Javadoc) AH{]tE  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !R-M:|  
*/ fLA!oeq{&}  
public void sort(int[] data) { sn '#]yM  
MaxHeap h=new MaxHeap(); }o0R`15dA  
h.init(data); "1$OPt5  
for(int i=0;i h.remove(); {(U?)4@  
System.arraycopy(h.queue,1,data,0,data.length); 8`Q8Mct$<  
} }i!hzkK#  
F&<si:}KB  
private static class MaxHeap{ /B.\6  
):; &~  
void init(int[] data){ >KH.~Jfy  
this.queue=new int[data.length+1]; ?DzKqsS'  
for(int i=0;i queue[++size]=data; x* *]@v"g  
fixUp(size); cod__.  
} r0379 _  
} oFB~)}f<v  
r&@#,g  
private int size=0; 75v 5/5zRn  
Bwj^9J/ob  
private int[] queue; } 1^/[?  
6T! *YrS  
public int get() { 'e^,#L_!o  
return queue[1]; y/k6gl[`  
} IeLG/ fB  
R$X1Q/#md  
public void remove() { }dX[u`zQ  
SortUtil.swap(queue,1,size--); N`1:U 4}  
fixDown(1); 2>p K  
} 58\Rl  
file://fixdown bq/ m?;  
private void fixDown(int k) { {P"$;_Y"<  
int j; D+lzISp~e  
while ((j = k << 1) <= size) { B!0o6)u'  
if (j < size %26amp;%26amp; queue[j] j++; >&6pBtC_  
if (queue[k]>queue[j]) file://不用交换 [tGAo/  
break; D^yZ!}Kl  
SortUtil.swap(queue,j,k); -'BC*fVr  
k = j; /{vv n  
} _W'>?e0i  
} CMB:%  
private void fixUp(int k) { A&*lb7X  
while (k > 1) { ()e.J  
int j = k >> 1; +dq&9N/  
if (queue[j]>queue[k]) ];i-d7C  
break; izy7. (.a  
SortUtil.swap(queue,j,k); Tqz{{]%j~$  
k = j; :# s 6,  
} bO]^TRaiJ  
} !#j y=A  
43-mv1>.  
} 2a8ZU{wjn  
vh5`R/<3  
} f2ygN6(>  
6SI`c+'@5  
SortUtil: {XH!`\  
va F^[/ (g  
package org.rut.util.algorithm; = Ryh@X&  
M]4qS('[  
import org.rut.util.algorithm.support.BubbleSort; ,r~pf (nz  
import org.rut.util.algorithm.support.HeapSort; JX8Hn |  
import org.rut.util.algorithm.support.ImprovedMergeSort; Q xZYy}2  
import org.rut.util.algorithm.support.ImprovedQuickSort; t0h @i`  
import org.rut.util.algorithm.support.InsertSort; X`xmV!  
import org.rut.util.algorithm.support.MergeSort; C"}CD{<H]M  
import org.rut.util.algorithm.support.QuickSort; KU#w %  
import org.rut.util.algorithm.support.SelectionSort; mR U-M|  
import org.rut.util.algorithm.support.ShellSort; cK4Q! l6O  
Xu\FcQ{  
/** 12qX[39/  
* @author treeroot lx _jy>$}r  
* @since 2006-2-2 vVB8zS~l ,  
* @version 1.0 {:BAh 5e|  
*/ Y '7f"W  
public class SortUtil { JAJo^}}{b  
public final static int INSERT = 1; hr3RC+ y  
public final static int BUBBLE = 2; >a/]8A  
public final static int SELECTION = 3; Gu[G_^>  
public final static int SHELL = 4; lz=$Dz  
public final static int QUICK = 5; L A &W@  
public final static int IMPROVED_QUICK = 6; \) DJo  
public final static int MERGE = 7; )7!q>^S{ B  
public final static int IMPROVED_MERGE = 8; Jm8{@D%  
public final static int HEAP = 9; gZ vX~  
9n4vuBgv  
public static void sort(int[] data) { 5-'jYp/  
sort(data, IMPROVED_QUICK); uqe{F+;8&  
} 7i^7sT8t  
private static String[] name={  h0}r#L  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" 4UwXrEQp  
}; u~SvR~OE  
Hl-!rP.?0  
private static Sort[] impl=new Sort[]{ ?^I\e{),c  
new InsertSort(), #-vuY#gs  
new BubbleSort(), _2uRY  
new SelectionSort(), !bs{/?  
new ShellSort(), V&nTf100  
new QuickSort(), .m%/JquMFM  
new ImprovedQuickSort(), E57:ap)/  
new MergeSort(), 6r  
new ImprovedMergeSort(), );EW(7KeL  
new HeapSort() }]O* yFR{j  
}; OXu*w l(z  
pT3p!/pl3  
public static String toString(int algorithm){ tuH8!.  
return name[algorithm-1]; Itq248+Ci  
} @ 3n;>oi  
-M=#U\D  
public static void sort(int[] data, int algorithm) { *Iy5 V7`KU  
impl[algorithm-1].sort(data); 5?6U@??]  
} D<=x<.  
R>Q&Ax  
public static interface Sort { Ja1[vO"YgP  
public void sort(int[] data); ;k1 \-  
} 'dJ#NT25  
{Yq"%n'0  
public static void swap(int[] data, int i, int j) { EJC{!06L'/  
int temp = data; )}ygzKEa  
data = data[j]; } U <T>0  
data[j] = temp; uWm,mGd9  
} st~ 1[in  
} F3d: W:^_  
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