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
  • 7756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。 =^".{h'-  
插入排序: nu1w:  
4=#QN  
package org.rut.util.algorithm.support; 16d{IGMz  
'E4(!H,k  
import org.rut.util.algorithm.SortUtil;  ZeDDH  
/** _oyL*Cb  
* @author treeroot YRT}fd>R&  
* @since 2006-2-2 zfT'!kb,(  
* @version 1.0 "}azC|:5  
*/ 8)Bn?6.  
public class InsertSort implements SortUtil.Sort{  =}1~~  
jak|LOp  
/* (non-Javadoc) ^,\se9=(  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :Q%yW%St$  
*/ #7E&16Fk  
public void sort(int[] data) { 7C 6BZ$(  
int temp; h11bK'TIv  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); nq w*oLFQ  
} *SpO|*'  
} D\i8rqU/l  
} C^ k3*N  
5Qe}v  
} 'XjHB!!hU  
tZ6v@W  
冒泡排序: MJk:s[o  
{ N8rZ[Oo  
package org.rut.util.algorithm.support; ?eZ"UGZg'  
TTjjyZ@  
import org.rut.util.algorithm.SortUtil; z8MpE  
_KlPbyLU  
/** i =+<7]Q  
* @author treeroot -1Ki7|0,  
* @since 2006-2-2 W71#NjM2Z  
* @version 1.0 A 5\"e^>  
*/ m_Y}>  
public class BubbleSort implements SortUtil.Sort{ .m % x-i  
7 5cr!+  
/* (non-Javadoc) ` G/QJH{I  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) - &LZle&M  
*/ )fcpE,g'  
public void sort(int[] data) { UmHb-uk ;  
int temp; pl? J<48  
for(int i=0;i for(int j=data.length-1;j>i;j--){ ~ 8qFM  
if(data[j] SortUtil.swap(data,j,j-1); O#ajoE  
} @ F"ShT0  
} 7*W$GCd8  
} ?>Ci`XlLr  
} pPqbD}p  
OTbjZ(  
} )e$-B]>7z  
CX(yrP6;  
选择排序: t7& GCZ  
ZtZV:re=  
package org.rut.util.algorithm.support; Le+8s LE`Y  
/VOST^z!  
import org.rut.util.algorithm.SortUtil; 4zvU"np  
&S`'o%B  
/** J};,%q_  
* @author treeroot j;c ^pLUP  
* @since 2006-2-2 i}12mjF  
* @version 1.0 9(\N+  
*/ sJ*U Fm{  
public class SelectionSort implements SortUtil.Sort { 'g, x}6  
&Fr68HNmj  
/* nWg)zj:  
* (non-Javadoc) m(Xr5hw:6  
* :'Kx?Es   
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) m,"tdVo.  
*/ z+`)|c4-  
public void sort(int[] data) { <cd%n-  
int temp; B~?Q. <M  
for (int i = 0; i < data.length; i++) { n/|`Dz.  
int lowIndex = i; `SpS?mWA  
for (int j = data.length - 1; j > i; j--) { `RLrT3 4  
if (data[j] < data[lowIndex]) { [_B&7#3>7  
lowIndex = j; gG?*Fi  
} V)?g4M3}  
} Z4tq&^ :c=  
SortUtil.swap(data,i,lowIndex); jtJ8r5j 1  
} Q>Q}/{8!  
} -s84/E4Y*  
$CV'p/^En  
} UjK&`a ;V  
4B,A+{3yL  
Shell排序: 8xz7S  
ooxzM `  
package org.rut.util.algorithm.support; eNskuG|1  
!S}Au Mw  
import org.rut.util.algorithm.SortUtil; ph+tk5k  
jCa;g{#@  
/** ?Gu>!7  
* @author treeroot *g}&&$b0  
* @since 2006-2-2 G+p>39P   
* @version 1.0 xL"o)]a=  
*/ L-TVe  
public class ShellSort implements SortUtil.Sort{ {iteC  
73<yrBxp  
/* (non-Javadoc) x/^zNO\1  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0u9h2/ma  
*/ XOFaS '.  
public void sort(int[] data) { _YUF /B'  
for(int i=data.length/2;i>2;i/=2){ \5_^P{p7<  
for(int j=0;j insertSort(data,j,i); HK.J/Zr  
} 1W7BN~p14  
} xz'd5 re%  
insertSort(data,0,1); i)DXb  
} 2geC3v% 0o  
| Ylk`<  
/** U$Z}<8  
* @param data Xqw7lj;K  
* @param j k"c_x*f  
* @param i 1i2O]e!  
*/ aC` c^'5  
private void insertSort(int[] data, int start, int inc) { %tLq&tyeY  
int temp; GC3L2C0)k  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); h!]A(T\J  
} A4x3TW?  
} 9mm(?O~'p  
} </p.OaNe  
]vErF=[U,  
} 9m!fW|4  
{xH@8T$DX  
快速排序: .@V>p6MV  
kMXl {  
package org.rut.util.algorithm.support; zBfBYhS-  
BD+?Ad?  
import org.rut.util.algorithm.SortUtil; }lVUa{ubf  
aoS1Yt'@  
/** $Plk4 o*g  
* @author treeroot :P~Owz  
* @since 2006-2-2 4N&}hOM'S  
* @version 1.0 q4oZJ-`  
*/ AJ u.  
public class QuickSort implements SortUtil.Sort{ f' S"F  
rJ>8|K[kt  
/* (non-Javadoc) 9~yuyv4$  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 70eN]OY  
*/ {VG6m Hw  
public void sort(int[] data) { %#~Wk|8} Q  
quickSort(data,0,data.length-1); Y`uCDfcQ  
} f -5ZXpWs'  
private void quickSort(int[] data,int i,int j){ ;q2T*4NN  
int pivotIndex=(i+j)/2; ,d#4Ib  
file://swap .M lE1n'  
SortUtil.swap(data,pivotIndex,j); \mloR '  
u.6%n. g  
int k=partition(data,i-1,j,data[j]); $P_Y8:  
SortUtil.swap(data,k,j); ZtDpCl_  
if((k-i)>1) quickSort(data,i,k-1); tP-c>|cz  
if((j-k)>1) quickSort(data,k+1,j); M;R>]wP"V  
}=gGs  
} ^Tx1y[hw$  
/** FBsw\P5w  
* @param data xmDwoLU  
* @param i .anL}OA_q  
* @param j f&'md  
* @return R#>E{[9  
*/ {YFru6$  
private int partition(int[] data, int l, int r,int pivot) { al/~  
do{ \N30SG ?o  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); uvL|T48  
SortUtil.swap(data,l,r); *6L^A`_1]  
} bu- RU(%  
while(l SortUtil.swap(data,l,r); ^_uzr}LE`  
return l; dq2v[? *R  
} 5> UgBA  
$)3/N&GXR  
} -SQYr  
gE1".qC  
改进后的快速排序: R[QE:#hT  
PLD!BD  
package org.rut.util.algorithm.support; @)B_e*6>'  
6C:Lq%}  
import org.rut.util.algorithm.SortUtil;  f$3  
B}W^s;h  
/** LHp s2,  
* @author treeroot Hi Yx(hY  
* @since 2006-2-2 :.<&Y=^  
* @version 1.0 hY!G>d{J  
*/ LBg#KQ @  
public class ImprovedQuickSort implements SortUtil.Sort { DQSv'!KFO  
y$ WS;#  
private static int MAX_STACK_SIZE=4096; Rd2[xk  
private static int THRESHOLD=10; Xp' KQ1w)  
/* (non-Javadoc) L>B0%TP^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) IH5thL@D  
*/ 04s N 4C  
public void sort(int[] data) { k(MQ:9'|  
int[] stack=new int[MAX_STACK_SIZE]; W6pS.}  
x\*5A,w{c]  
int top=-1; XP'KgTF  
int pivot; 9} vWTt0  
int pivotIndex,l,r; z"<PveVo  
^/c|s!U^  
stack[++top]=0; , Le_PJY)  
stack[++top]=data.length-1; -I -wdyDr  
/<mc~S7  
while(top>0){ Y !`H_Qo  
int j=stack[top--]; X@arUs7  
int i=stack[top--]; ,"D1!0  
}Eav@3h6  
pivotIndex=(i+j)/2; 6c2fqAF>i  
pivot=data[pivotIndex]; q+K`+& @\  
>@t]M`#&h  
SortUtil.swap(data,pivotIndex,j); KT3[{lr  
xe5>)\18-  
file://partition eA!aUu  
l=i-1; {S|uQgs6j  
r=j; 3}"VUS0wh  
do{ n1H*][CK  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 8'zwy d3  
SortUtil.swap(data,l,r); PgVM>_nHk  
} !l'Zar  
while(l SortUtil.swap(data,l,r); iB\d `NUf  
SortUtil.swap(data,l,j); V@$B>HeK  
Y$(G)Fs  
if((l-i)>THRESHOLD){ 8J)x>6  
stack[++top]=i; NWKD:{  
stack[++top]=l-1; pD){K  
} Fr3Q"(  
if((j-l)>THRESHOLD){ rIu>JyC"p  
stack[++top]=l+1; 'HOt?lpu!  
stack[++top]=j; 77)C`]0(  
} ;$W|FpR2  
h322^24-2  
} Q 5Ln'La$  
file://new InsertSort().sort(data); W] RxRdY6[  
insertSort(data); EB)0 iQ  
} Z rvb %  
/** ]+J]}C]\d  
* @param data -1fT2e  
*/ AR&u9Y)I  
private void insertSort(int[] data) { &ed.%:  
int temp; {~Phc 2z  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); xNT[((  
} PyIIdTm  
} eQMY3/#  
} CnJO]0Op3  
).k=[@@V  
} 42Z2Mjtk  
nL\BB&  
归并排序: XWK A0  
{AJs pLcG  
package org.rut.util.algorithm.support; 1;SWfKU?.  
'#^ONnSTn  
import org.rut.util.algorithm.SortUtil; 94H 6`  
qRTy}FU1  
/** |',MgA  
* @author treeroot S?;&vs9j  
* @since 2006-2-2 ZE4~rq/W  
* @version 1.0 {D$#m  
*/ {]`O$S  
public class MergeSort implements SortUtil.Sort{ gR%fv  
Rs7=v2>I  
/* (non-Javadoc) @ 3FTf"#Y  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2}t2k>  
*/ q0$}MB6  
public void sort(int[] data) { %b0..Zz  
int[] temp=new int[data.length]; .#P'NF(5#  
mergeSort(data,temp,0,data.length-1); Hcuvu[)T"  
} zuXJf+]  
6!O~:\`DJ  
private void mergeSort(int[] data,int[] temp,int l,int r){ G,%R`Xns  
int mid=(l+r)/2; tyNT1F{  
if(l==r) return ; Ee d2`~  
mergeSort(data,temp,l,mid);  GVe[)R  
mergeSort(data,temp,mid+1,r); o[0Cv*  
for(int i=l;i<=r;i++){ eA4@)6WP(  
temp=data; Ac|IBXGa=  
} t*~V]wZ  
int i1=l; qf7 lQovK  
int i2=mid+1; vEk jd#  
for(int cur=l;cur<=r;cur++){ >`SIB; &>j  
if(i1==mid+1) *#w+*ywVZH  
data[cur]=temp[i2++]; {IJ,y27  
else if(i2>r) GeD^-.^  
data[cur]=temp[i1++]; ymiOtA Z  
else if(temp[i1] data[cur]=temp[i1++]; *6?h,Dt L  
else Wyd,7]'z)Z  
data[cur]=temp[i2++]; ".Luc 7  
} FQ2 6(.  
} *xI0hFJIM  
t3 2 FNg  
} qlNK }  
ssUWr=mD  
改进后的归并排序: '1_CMr  
~*@ UQ9*p#  
package org.rut.util.algorithm.support; ^9UKsy/q  
 v=R=K  
import org.rut.util.algorithm.SortUtil; TFjb1 a,)  
3dTz$s/[  
/** ]nY,%XE  
* @author treeroot +`>Tuz~  
* @since 2006-2-2 ^"STM'Zh  
* @version 1.0 | U )  
*/ _8P0iC8Zg#  
public class ImprovedMergeSort implements SortUtil.Sort { qwM71B!r  
Nr8#/H2f  
private static final int THRESHOLD = 10; B>hf|.GI  
B+:/!_  
/* 3copJS  
* (non-Javadoc) pyJY]"UHVE  
* Cdg/wRje  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) MH7 n@.t  
*/ wVX]"o  
public void sort(int[] data) { H0r@dn  
int[] temp=new int[data.length]; z3x /Y/X$S  
mergeSort(data,temp,0,data.length-1); C@1B?OfJ  
} 0N>NX?r  
wyJ+~  
private void mergeSort(int[] data, int[] temp, int l, int r) { EIQ`?8KSR  
int i, j, k; cuzU*QW"g  
int mid = (l + r) / 2; X?whyD)vE@  
if (l == r) -|V1A[  
return; [}:;B$,  
if ((mid - l) >= THRESHOLD) p?rh+0wgX  
mergeSort(data, temp, l, mid); L8R{W0Zr>!  
else cip5 -Z@8  
insertSort(data, l, mid - l + 1); y``[CBj  
if ((r - mid) > THRESHOLD) GYH{_Fq  
mergeSort(data, temp, mid + 1, r); ;GQCq@)-  
else *WMI<w~_  
insertSort(data, mid + 1, r - mid); x9\z^GU%H  
69< <pm,m  
for (i = l; i <= mid; i++) { !r^fX=X>'  
temp = data; o0ky]9 P  
} Ck1{\=t  
for (j = 1; j <= r - mid; j++) { (-S\%,hO  
temp[r - j + 1] = data[j + mid]; u-</G-y  
} 4, EX2  
int a = temp[l]; "qh~wKJ  
int b = temp[r]; R` g'WaDk  
for (i = l, j = r, k = l; k <= r; k++) { m4\e `nl  
if (a < b) { "t0l)P*C}  
data[k] = temp[i++]; OTe h8h  
a = temp; V_\9t8  
} else { ~dXiyU,y2  
data[k] = temp[j--]; A4{14Y;?  
b = temp[j]; 2`dKnaF|  
} O}s Mqh  
} !#y_vz9  
} VEsIhjQ  
wE~&Y? ^  
/** 8yCt(ms  
* @param data (jmF7XfU  
* @param l PPAcEXsIu  
* @param i H~$*R7~  
*/ R E0ud_q2  
private void insertSort(int[] data, int start, int len) { 5 6JxHQu  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 3QI.|;X  
} !P8Y(i  
} jhR`%aH4  
} k'8tqIUN]  
} icK>|   
mV'-1  
堆排序: tp<v  
3p1U,B}  
package org.rut.util.algorithm.support; 3d`u!i?/  
u']}Z% A9`  
import org.rut.util.algorithm.SortUtil; DuQW?9^232  
1'B&e)  
/** 8|L;y[v  
* @author treeroot &j}:8Tst  
* @since 2006-2-2 0^3n#7m;K  
* @version 1.0 ?WP*At0  
*/ + mPVI  
public class HeapSort implements SortUtil.Sort{ }Y"vUl_I2  
@?JFqwq!  
/* (non-Javadoc) B ({g|}|G+  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 8S` j6  
*/ vw6>eT  
public void sort(int[] data) { {TXfi'\  
MaxHeap h=new MaxHeap(); S2jn  pf}  
h.init(data); 4L bll%[9  
for(int i=0;i h.remove(); 0`/CoP<U  
System.arraycopy(h.queue,1,data,0,data.length); TKp2C5bX  
} <v6W l\  
EQtYb"_  
private static class MaxHeap{ :b0|v`FU  
I5@8=rFk  
void init(int[] data){ NTo[di\_  
this.queue=new int[data.length+1]; ;i?rd f  
for(int i=0;i queue[++size]=data; 7,s5Gd-  
fixUp(size); G0A\"2U  
} >,ABE2t5  
} |>RNIJ]  
LGK&&srJs  
private int size=0; J4x|Afp  
)Ma/] eZ^I  
private int[] queue; mp)+wZAN&  
/}/GK|tj  
public int get() { &hUEOif  
return queue[1]; |- <72$j  
} 1Va=.#<  
G8zbb  
public void remove() { Wecxx^vtv6  
SortUtil.swap(queue,1,size--); ,D'm#Fti  
fixDown(1); |c>.xt~  
} 0(>3L:  
file://fixdown ,^7] F"5  
private void fixDown(int k) { W^7yh&@lU  
int j; &2Ef:RZF  
while ((j = k << 1) <= size) { b0/YX@  
if (j < size %26amp;%26amp; queue[j] j++; 7GTDe'T  
if (queue[k]>queue[j]) file://不用交换 *+XiBho  
break; hQ}_(F_H  
SortUtil.swap(queue,j,k); dBwoAq`'  
k = j; [mQdc?n\  
} L?Ys(a"k  
} 5KfrkZ  
private void fixUp(int k) { E0x\h<6W~  
while (k > 1) { ,!,tU7-H  
int j = k >> 1; l,~`o$ _  
if (queue[j]>queue[k]) puLgc$?  
break; 9Z }<H/q  
SortUtil.swap(queue,j,k); (S4HU_,88  
k = j; f5p/cUzX  
} 3yw$<lm  
} NMQG[py!f  
=av0a !  
} |Y8}*C\M.h  
5F!Qn\{u{  
} 6O,:I  
%% /8B  
SortUtil: 9^9-\DG  
cly}[<w!  
package org.rut.util.algorithm; [V>s]c<4`o  
m)LI| v  
import org.rut.util.algorithm.support.BubbleSort; h@Jg9AM  
import org.rut.util.algorithm.support.HeapSort; b;{"@b,Y  
import org.rut.util.algorithm.support.ImprovedMergeSort; //;(KmU9  
import org.rut.util.algorithm.support.ImprovedQuickSort; $2,tT;50g  
import org.rut.util.algorithm.support.InsertSort; yXoNfsv  
import org.rut.util.algorithm.support.MergeSort; E .28G2&  
import org.rut.util.algorithm.support.QuickSort; K a& 2>F  
import org.rut.util.algorithm.support.SelectionSort; @?3^ Ks_  
import org.rut.util.algorithm.support.ShellSort; i]N<xcF9N*  
U[|5:qWs  
/** gL-kI *Ra  
* @author treeroot Q"B8l[  
* @since 2006-2-2 ^EKRbPA9:<  
* @version 1.0 6PYm?i=p?  
*/ %)r:!R~R  
public class SortUtil { _"Z?O)d*  
public final static int INSERT = 1; 2m]4  
public final static int BUBBLE = 2; .ARM~{q6)@  
public final static int SELECTION = 3; N mXRA(m  
public final static int SHELL = 4; ,(a~vqNQW3  
public final static int QUICK = 5; Zs{7km  
public final static int IMPROVED_QUICK = 6; K#N9N@WjR  
public final static int MERGE = 7; Y,GlAr s4  
public final static int IMPROVED_MERGE = 8; B`<}YVA  
public final static int HEAP = 9; vPGUE`!D+  
-seLa(8F  
public static void sort(int[] data) { vanV|O  
sort(data, IMPROVED_QUICK); Y.) QNTh  
} ;y. ;U#O  
private static String[] name={ 5I,NvHD4  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" i+qg*o$  
}; auc:|?H~1n  
#O !2  
private static Sort[] impl=new Sort[]{ #h^nvRmON  
new InsertSort(), f|M^UHt8*  
new BubbleSort(), zn 0y`9!n?  
new SelectionSort(), =.;ib6M  
new ShellSort(), ;akW i]  
new QuickSort(), B)[RIs  
new ImprovedQuickSort(), Qw5(5W[L  
new MergeSort(), oJ %Nt&q  
new ImprovedMergeSort(), 9#9bm  
new HeapSort() F<4 :P=  
}; MKvmzLh$)  
O5vfcX4>  
public static String toString(int algorithm){ ?wPTe^Qtv  
return name[algorithm-1]; V\x'w*FP  
} s|H7;.3gp  
G#e]J;   
public static void sort(int[] data, int algorithm) { d@g29rs  
impl[algorithm-1].sort(data); K=o {  
} eu"m0Q  
&_-=(rK  
public static interface Sort { B G\)B  
public void sort(int[] data); 3'kKbrk [  
} {Kr}RR*{X  
G gA:;f46  
public static void swap(int[] data, int i, int j) { U ->vk{v  
int temp = data; M j[+h|e  
data = data[j]; rhQ+ylt8I  
data[j] = temp; Yg '(  
} lqv}~MC  
} 1aO(+](;  
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
如果您提交过一次失败了,可以用”恢复数据”来恢复帖子内容
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八