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
  • 8876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。 -IMm#  
插入排序: 3/H^YM @  
57'=Qz52  
package org.rut.util.algorithm.support; R0(Nw7!d/[  
p4\%*ovQt  
import org.rut.util.algorithm.SortUtil; &,4^LFZ W  
/** SXSH9;j  
* @author treeroot 7]_UZ)u  
* @since 2006-2-2 Sd2R $r  
* @version 1.0 +*WE<4"!6  
*/ HWxk>F0  
public class InsertSort implements SortUtil.Sort{ Ka1 F7b  
5@" bx=  
/* (non-Javadoc) 6d&BN7B  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,--/oP  
*/ e!URj\*  
public void sort(int[] data) { X's-i!  
int temp; VHsuC$3W  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); c2Ua!p(c  
} I1=YSi;A  
} >G92k76G  
} m0t 5oO  
WW2VW-Hk  
} 4f ~CG r  
46o3F"  
冒泡排序: [-f0s;F1%  
MeW8aL r  
package org.rut.util.algorithm.support; DZ?>9W{  
!s/ij' T  
import org.rut.util.algorithm.SortUtil; .r)WDR  
f(=yC} si  
/** O$J'BnPpw  
* @author treeroot lY[>}L*H8  
* @since 2006-2-2 yL^1s\<ddW  
* @version 1.0 0|9(oP/:  
*/ ELeR5xT  
public class BubbleSort implements SortUtil.Sort{ <1.].A@b*  
])!|b2:s3  
/* (non-Javadoc) u`$,S& Er  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %?J\P@  
*/ 6C9KT;6  
public void sort(int[] data) { Z%\9y]zs  
int temp; dt{ |bQLu3  
for(int i=0;i for(int j=data.length-1;j>i;j--){ <~!7?ak  
if(data[j] SortUtil.swap(data,j,j-1); Pk T&zSQA  
} W%hdS<b  
} RX4O1Z0  
} )/PvaL  
} ^ ]SS\=7  
zh2$U dZ|M  
} TKvUBy  
yc8FEn!)&  
选择排序: 1 h|cr_  
E)o/C(g  
package org.rut.util.algorithm.support; HuBG?4Qd  
X0^gj>GI|  
import org.rut.util.algorithm.SortUtil; T9jp*  
 s$YKdtR  
/** 3}= .7qm  
* @author treeroot 1eZ">,F6<  
* @since 2006-2-2 ?^mgK9^v@  
* @version 1.0 B++.tQ=X.  
*/ #s{>v$F  
public class SelectionSort implements SortUtil.Sort { &<R8'  
8kXbyKX[b  
/* {6^c3R[  
* (non-Javadoc) C_dsYuQ5R  
* ~;_]U[eOL  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) GeWB"(t  
*/ E)3B)(@&P  
public void sort(int[] data) { PvBx<i}A  
int temp; cEnkt=  
for (int i = 0; i < data.length; i++) { P5* :r3>  
int lowIndex = i; ,RKBGOz?f  
for (int j = data.length - 1; j > i; j--) { I7r{&X) D  
if (data[j] < data[lowIndex]) { YR'?fr  
lowIndex = j; E0$UoP   
} 'Sppm;?  
} F\Q)l+c  
SortUtil.swap(data,i,lowIndex); @/l{  
} J:dF^3Y  
} *>V6KW  
=xQ 7:TB  
} fs&J%ku\  
A9qCaq{  
Shell排序: ^+oi|y  
oF,XSd  
package org.rut.util.algorithm.support; 9"52b 9U  
LO[1xE9  
import org.rut.util.algorithm.SortUtil; eW"i'\`0  
{/uBZ(   
/** W:O<9ZbQ_  
* @author treeroot ~:b bV6YO  
* @since 2006-2-2 F7^8Ej9*a  
* @version 1.0 e &^BPzg  
*/ t1b$,jHmKl  
public class ShellSort implements SortUtil.Sort{ g_G?gO  
SKuZik_  
/* (non-Javadoc) bM;yXgorU  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jWLZ!a3+  
*/ Bwjd/id q  
public void sort(int[] data) { qF`;xa%,}  
for(int i=data.length/2;i>2;i/=2){ !CtY.Lp  
for(int j=0;j insertSort(data,j,i); Ziu f<X{  
} ^c83_93)R  
} Ev0GAc1  
insertSort(data,0,1); z@>z.d4  
} #bUWF|zfT  
ZLyJ  
/** =rl/ l8|P  
* @param data Re5m  
* @param j \3n{%\_  
* @param i & d\`=e  
*/ @ v/%^  
private void insertSort(int[] data, int start, int inc) { u><ax  
int temp; C,n]9  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); RKdf1C  
} uYIw ?fXy  
} 1)/B V{n  
} kMKI=>s+  
GC66n1- X  
} 1)?^N`xF  
hghtF  
快速排序: B, xrZs  
L$zT`1Hy  
package org.rut.util.algorithm.support; W=5+k0Q  
JmrQDO_(  
import org.rut.util.algorithm.SortUtil; "8ILV`[  
<]/`#Xgh  
/** m}:";>?#  
* @author treeroot 2n?\tOm(V  
* @since 2006-2-2 &~pj)\_  
* @version 1.0 IE$x2==)  
*/ 8V_ ]}W  
public class QuickSort implements SortUtil.Sort{ I|RN/RVN  
-kZz,pNQ,  
/* (non-Javadoc) $ 1H?k  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) PtO-%I<N  
*/ mz1Xk ]nE  
public void sort(int[] data) { ' :g8a=L  
quickSort(data,0,data.length-1); (6u<w#u  
} b;]'Bo0K  
private void quickSort(int[] data,int i,int j){ %83PbH  
int pivotIndex=(i+j)/2; u9:;ft{}N  
file://swap 'Vy$d<@s[  
SortUtil.swap(data,pivotIndex,j); reM%GU  
fbB(W E+  
int k=partition(data,i-1,j,data[j]); /AJ ^wY  
SortUtil.swap(data,k,j); $ 8_t.~q  
if((k-i)>1) quickSort(data,i,k-1); LoOyqJ,  
if((j-k)>1) quickSort(data,k+1,j); l6xC'c,jg  
=ADAMP  
} I m_yY  
/** \@pl:Os  
* @param data 00U8<~u  
* @param i Xa*52Q`_  
* @param j T=VVK6Lc:  
* @return )jR:\fe  
*/ MgHyKn'rL  
private int partition(int[] data, int l, int r,int pivot) { 1(w0* `  
do{ ]WN{8   
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); (loUO;S=  
SortUtil.swap(data,l,r); fL83:<RK  
} u~LisZ&tP  
while(l SortUtil.swap(data,l,r); ?Y ) Qy,  
return l; X_ H R$il  
} hz Vpv,|G  
PHDKx+$  
} s[nOB0  
$7TYix8=  
改进后的快速排序: uP|AP  
5zpk6FR$  
package org.rut.util.algorithm.support; uz>s2I}B  
m{pL< g^M  
import org.rut.util.algorithm.SortUtil; (oq(-Wv  
@WhcY*R2  
/** akm)X0!-}  
* @author treeroot :b=`sUn<X+  
* @since 2006-2-2 /Ia=/Jj7N  
* @version 1.0 ~lCG37  
*/ v6s8 p  
public class ImprovedQuickSort implements SortUtil.Sort { Zx}=c4I(y  
zZDG5_$n  
private static int MAX_STACK_SIZE=4096; K_]LK  
private static int THRESHOLD=10; Ip8 Ap$  
/* (non-Javadoc) v&H&+:<  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) X%`8h _  
*/ s<:"rw`  
public void sort(int[] data) { SnQ$  
int[] stack=new int[MAX_STACK_SIZE]; d#ld*\|  
L}>9@?;GW  
int top=-1; y>~=o9J_u  
int pivot; p*Q"<@n  
int pivotIndex,l,r; KT?vs5jg$&  
"~]9}KM}3W  
stack[++top]=0; Ma-^o<{  
stack[++top]=data.length-1; ]P(Eo|)m  
4LBjqv,P  
while(top>0){ vm8QKPy  
int j=stack[top--]; l,6="5t  
int i=stack[top--]; hH"3Y}U@  
lG\lu'<C  
pivotIndex=(i+j)/2; Vy}:Q[  
pivot=data[pivotIndex]; w/YKWv{_S  
4yRT!k}o  
SortUtil.swap(data,pivotIndex,j); Ba`]Sm=  
bXJ,L$q  
file://partition C!qW:H  
l=i-1; eDaVoc3  
r=j; gl]{mUZz}  
do{ c0Q`S"o+  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); . s? ''/(  
SortUtil.swap(data,l,r); gP/]05$e  
} IFG`  
while(l SortUtil.swap(data,l,r); *ZN"+ wf\  
SortUtil.swap(data,l,j); QR4v6*VpD  
Yo7ctwzdH;  
if((l-i)>THRESHOLD){ @q^WD_k  
stack[++top]=i; #\`6ZHW  
stack[++top]=l-1; DKK200j  
} zc/S  
if((j-l)>THRESHOLD){ i.F[.-.  
stack[++top]=l+1; Z]9 )1&  
stack[++top]=j; Ij=hmTl{P  
} Cc!n`%qc  
O "{o (  
} c%xxsq2n  
file://new InsertSort().sort(data); q".l:T%|C}  
insertSort(data); &]#D`u  
} T+sO(;  
/** tQ`tHe  
* @param data v`wPdb  
*/ j1/J9F'  
private void insertSort(int[] data) { vja^ O  
int temp; &2QN^)q  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); %eD&2$q*  
} "G`)x+<~Z8  
} $Q47>/CUc^  
} c:=Z<0S;  
0CTI=<;  
} DCw ldkdJN  
VaX>tUW  
归并排序: u=ENf1{ $>  
o &Nr5S  
package org.rut.util.algorithm.support; zaoZCyJT%  
[f O]oTh  
import org.rut.util.algorithm.SortUtil; W >B:W0A  
, / 4}CM  
/** s[xdID^3.  
* @author treeroot Bb-x1{t  
* @since 2006-2-2 7Kh+m@q.  
* @version 1.0 tM@TT@.t~  
*/ + FLzK(  
public class MergeSort implements SortUtil.Sort{ N4HnW0  
=3 -G  
/* (non-Javadoc) Zqx5I~  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) w7dG=a&  
*/ ia?8 Z"&lK  
public void sort(int[] data) { 3!Bekn]  
int[] temp=new int[data.length]; &,e@pvc3  
mergeSort(data,temp,0,data.length-1); }]g>PY  
} ?+5K2Zk  
~hM4({/QN  
private void mergeSort(int[] data,int[] temp,int l,int r){ c-s ~q/  
int mid=(l+r)/2; %kVpW& ~  
if(l==r) return ; *d,SI[c%e  
mergeSort(data,temp,l,mid); !sR`]0  
mergeSort(data,temp,mid+1,r); t3bN P K^  
for(int i=l;i<=r;i++){ )ZiJl5l@  
temp=data; {H0B"i  
}  wl9E  
int i1=l; cT.1oaAM0  
int i2=mid+1; "J[Crm  
for(int cur=l;cur<=r;cur++){ =&}dP%3LC)  
if(i1==mid+1) (a)d7y.oo  
data[cur]=temp[i2++]; y YF80mnJz  
else if(i2>r) ;PLby]=O  
data[cur]=temp[i1++]; '9^x"U9c  
else if(temp[i1] data[cur]=temp[i1++]; x>Q#Bvy  
else W6wgX0H  
data[cur]=temp[i2++]; >L=l{F6 p  
} Bd\p!f<  
} 2abWIw4  
g{a_{P  
} BJ{mX>I(  
N %0F[sY6  
改进后的归并排序: le8n!Dk(  
\W*ouH  
package org.rut.util.algorithm.support; Pb[wysy  
,T1 t`  
import org.rut.util.algorithm.SortUtil; [m('Y0fwO^  
BQw#PXp3  
/** HYpB]<F  
* @author treeroot 1[B?nk  
* @since 2006-2-2 UHR)]5Lt  
* @version 1.0 }hl# e[$  
*/ !@*Ac$J>$  
public class ImprovedMergeSort implements SortUtil.Sort { ]LP&v3  
lDAw0 C3  
private static final int THRESHOLD = 10; v}[7)oj|  
se(_`a/4Q  
/* =\_MJ?A$  
* (non-Javadoc) A u(Ngq  
* !xa,[$w(^  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <L5[#V_  
*/ .!=g  
public void sort(int[] data) { 1Rwk}wL  
int[] temp=new int[data.length]; Ym!Ia&n  
mergeSort(data,temp,0,data.length-1); vw+ @'+  
} =zI eZ7  
v( (fRX.`  
private void mergeSort(int[] data, int[] temp, int l, int r) { *4+;E y  
int i, j, k; BU])@~$  
int mid = (l + r) / 2; YFsEuaV  
if (l == r) m: w/[|_  
return; :Fm+X[n  
if ((mid - l) >= THRESHOLD) Pm;"Y!S<  
mergeSort(data, temp, l, mid); #ljfcQm  
else 6AzH'H F  
insertSort(data, l, mid - l + 1); t ZF G`'/  
if ((r - mid) > THRESHOLD) wRUpQ~=B2  
mergeSort(data, temp, mid + 1, r); j;<;?IW  
else RCgs3JIE+2  
insertSort(data, mid + 1, r - mid); ,=z8aiUu  
mqtl0P0  
for (i = l; i <= mid; i++) { kS+*@o  
temp = data; )2FS9h.t  
} 5v>(xl  
for (j = 1; j <= r - mid; j++) { \!s0VEE  
temp[r - j + 1] = data[j + mid]; cV)C:!W2  
} # {!Qf\1M  
int a = temp[l]; SRj|XCd  
int b = temp[r]; [\. ho9  
for (i = l, j = r, k = l; k <= r; k++) { )S>~h;  
if (a < b) { "1`c^  
data[k] = temp[i++]; r#^X]  
a = temp; [}d 3 u!  
} else { I_Oa<J\+  
data[k] = temp[j--]; !y?g$e`  
b = temp[j]; A^o  
} L42C<  
} 2rD`]neA  
} f*kT7PJG  
xOD;pRZQ  
/** m"@M~~bh  
* @param data >*Y~I0>  
* @param l ,?i#NN5p  
* @param i `EV[uj&1S  
*/ k(hes3JV  
private void insertSort(int[] data, int start, int len) { N6yqA)z?;  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); (~/D*<A  
} $NJi]g|<3  
} blxH`O!  
} _.wLQL~y  
} [YJP  
1<fEz  
堆排序: d) G7U$z~  
4$ejJaE  
package org.rut.util.algorithm.support; "hpK8vQ  
m5f/vb4l  
import org.rut.util.algorithm.SortUtil; A-.jv  
[4( TG<I  
/** v@"xEf1n[  
* @author treeroot  3]<$;[Q  
* @since 2006-2-2 0(-'L\<>x  
* @version 1.0 Qh)@-r3  
*/ Wc03Sv&FZ  
public class HeapSort implements SortUtil.Sort{ jlzqa7  
Q)HVh[4  
/* (non-Javadoc) > NK?!!A_  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g"xLS}Al  
*/ $ShL^g@  
public void sort(int[] data) { -\AB!#fh  
MaxHeap h=new MaxHeap(); q^Oq:l$s  
h.init(data); N$?mula  
for(int i=0;i h.remove(); 7P:0XML}  
System.arraycopy(h.queue,1,data,0,data.length); Yq<D(F#qx  
} :]e:-JbT4z  
OFCkQEG=y>  
private static class MaxHeap{ QQ1+uY  
yq\)8Fe  
void init(int[] data){ %=\h=\wt  
this.queue=new int[data.length+1]; L{'qZ#N[  
for(int i=0;i queue[++size]=data; p;BdzV>  
fixUp(size); 4$d|}ajH  
} d/Fjs0pt  
} `;5UlkVZ5  
:3{@LOil^  
private int size=0; Og"50-  
ObMsncn  
private int[] queue; 1wqCoDgkp  
8uS1HE\%  
public int get() { NzNAhlXj3  
return queue[1]; xg\M9&J  
} S #&HB  
h'w9=Pk~6y  
public void remove() { a5z.c_7r  
SortUtil.swap(queue,1,size--); Mz+|~'R  
fixDown(1); rm(<?w%'?  
} `H ^Nc\P#  
file://fixdown DQH _@-q  
private void fixDown(int k) { hG&RGN_<6+  
int j; 2%1 g%  
while ((j = k << 1) <= size) { {HvR24#  
if (j < size %26amp;%26amp; queue[j] j++; Af ^6  
if (queue[k]>queue[j]) file://不用交换 8+v6%,K2  
break; {Kd9}CDAZ  
SortUtil.swap(queue,j,k); fx%'7/+  
k = j; ^fXNeBj  
} HSp*lHU  
} }B^s!y&b  
private void fixUp(int k) { ZEUd?"gaR  
while (k > 1) { :a#]"z0  
int j = k >> 1; Y5cUOfYT  
if (queue[j]>queue[k]) 4 lJ@qhV  
break; RAXqRP,iw  
SortUtil.swap(queue,j,k); %v : a  
k = j; pRUN [[L  
} c{rX7+bN  
} zO9|s}J8q  
H ,KU!1p  
} 9"_qa q  
OQ W#BBet@  
} tG{e(  
 6<sB   
SortUtil: d q"b_pr;  
X f!Bsp#\g  
package org.rut.util.algorithm; RZm5[n  
52wq<[#tK  
import org.rut.util.algorithm.support.BubbleSort; q,$UKg#i  
import org.rut.util.algorithm.support.HeapSort; .'5yFBS  
import org.rut.util.algorithm.support.ImprovedMergeSort; REnRpp$  
import org.rut.util.algorithm.support.ImprovedQuickSort; ^X"G~#v=q  
import org.rut.util.algorithm.support.InsertSort; dUOjPq97  
import org.rut.util.algorithm.support.MergeSort; Q3wD6!'&m  
import org.rut.util.algorithm.support.QuickSort; S)@R4{=e"V  
import org.rut.util.algorithm.support.SelectionSort; JS}W4 N  
import org.rut.util.algorithm.support.ShellSort; /M v\~vg$1  
u)R>ozER  
/** 2frJSV?  
* @author treeroot 7+#^:;19`  
* @since 2006-2-2 </:f-J%U/  
* @version 1.0 RyIr_:&-~  
*/ h_* =_2|}  
public class SortUtil { `k^ i#Nc>  
public final static int INSERT = 1; H<X4R  
public final static int BUBBLE = 2; P}DrUND  
public final static int SELECTION = 3; L1P]T4a@)  
public final static int SHELL = 4; _ CXKJ]m4  
public final static int QUICK = 5; ~W%A8`9  
public final static int IMPROVED_QUICK = 6; sjWhtd[fgG  
public final static int MERGE = 7; 2"yzrwZ:  
public final static int IMPROVED_MERGE = 8; D#W{:_f  
public final static int HEAP = 9; n_.2B$JD  
8[(c'rl|)|  
public static void sort(int[] data) { UFouIS#L  
sort(data, IMPROVED_QUICK); @<W"$_ r-  
} K]N^6ome  
private static String[] name={ 6\OSIxJZF  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" &"Ua"H)  
}; s3/->1#i  
" *kWM  
private static Sort[] impl=new Sort[]{ Vy16Co  
new InsertSort(), qECc[)B  
new BubbleSort(), onG,N1`+  
new SelectionSort(), (}gF{@sn  
new ShellSort(), +g7Iu! cA  
new QuickSort(), Q%o   
new ImprovedQuickSort(), ,Xo9gn  
new MergeSort(), zRsT6u  
new ImprovedMergeSort(), e0(loWq]  
new HeapSort() PPPRO.y  
}; (<itE3P  
]/JE#  
public static String toString(int algorithm){ A9p$5jt7  
return name[algorithm-1]; D3;^!ln]D  
} Ibd7[A\  
W{1=O)w  
public static void sort(int[] data, int algorithm) { Fl(+c0|kT  
impl[algorithm-1].sort(data); (.<Gde#  
} X~]eQaJ  
rS>njG;R  
public static interface Sort { 84e)huAs  
public void sort(int[] data); ,XI,B\eNk  
} K&D -1u  
\P&'4y~PL  
public static void swap(int[] data, int i, int j) { !COaPrg  
int temp = data; s/`4]B;2U  
data = data[j]; k-b_ <Tbo|  
data[j] = temp; q<,?:g$k  
} Fr/8q:m &  
} IDdhBdQ  
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
批量上传需要先选择文件,再选择上传
认证码:
验证问题:
10+5=?,请输入中文答案:十五