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
  • 9012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。 _J -3{a  
插入排序: 9xIz[`)i.  
("ulL5  
package org.rut.util.algorithm.support; ff.;6R\  
i8> ^{GODR  
import org.rut.util.algorithm.SortUtil; 8@d,TjJDo  
/** /Q2{w >^DK  
* @author treeroot H<bB@(i  
* @since 2006-2-2 tU, >EbwO  
* @version 1.0 9{XC9 \~  
*/ pTIE.:g(  
public class InsertSort implements SortUtil.Sort{ ,5/zTLd   
mybvD  
/* (non-Javadoc) ^V;2v? O  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }@avG t;v  
*/ }^}ep2^  
public void sort(int[] data) { Jevr.&;O  
int temp; K9+%rqC.|`  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 9ld'SB:#  
} */E5<DO  
} =U_O;NC  
} }='1<~0  
w} 1~  
} gDBdaxR<  
9 M!J7 W  
冒泡排序: D}6~2j  
CiTjRJ-ZW)  
package org.rut.util.algorithm.support; pv){R;f  
`w/`qG:dK  
import org.rut.util.algorithm.SortUtil; GV(@(bI*  
DSc:>G  
/** b$G &i'd  
* @author treeroot z 2Rg`1B  
* @since 2006-2-2 s'^"s_j  
* @version 1.0 Y76UhtYH  
*/ NY9\a[[^[8  
public class BubbleSort implements SortUtil.Sort{ !pG_MO  
xcA5  
/* (non-Javadoc) xix: = a  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) QeZK&^W  
*/ v35=4>Y  
public void sort(int[] data) { j1U,X  
int temp; O6Jn$'os1#  
for(int i=0;i for(int j=data.length-1;j>i;j--){ pv9Z-WCix$  
if(data[j] SortUtil.swap(data,j,j-1); {t1 ;icu  
} y7WO:X&  
} Aq:1  
} AQa;D2B$  
} d-sK{ZC"y  
T`gR&n<D  
} XlHt(d0h  
%^ z## 7^  
选择排序: j`pX2S  
-OPJB:7Z  
package org.rut.util.algorithm.support; hd)HJb-aR  
N#"(  
import org.rut.util.algorithm.SortUtil; U jrML  
YqSkz|o}m  
/** -kI;yL  
* @author treeroot x=~$ik++  
* @since 2006-2-2 '#p2v'A  
* @version 1.0 7lYiufg  
*/ CBvvvgIo  
public class SelectionSort implements SortUtil.Sort { >^q7:x\  
Uc<j{U ,  
/* S eTn]  
* (non-Javadoc) "[t (u/e  
* qH1&tW$  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) E+xC1U 3  
*/ NwPC9!*  
public void sort(int[] data) { smTPca)7s  
int temp; hxQx$  
for (int i = 0; i < data.length; i++) { EvQMt0[?EW  
int lowIndex = i; zUCtH*  
for (int j = data.length - 1; j > i; j--) { <W<>=vDzyE  
if (data[j] < data[lowIndex]) { 9C2DW,?  
lowIndex = j; k-N` h  
} N|53|H  
} xvx+a0 A  
SortUtil.swap(data,i,lowIndex); / >q?H)6  
} @+P7BE}  
} W|e$@u9  
aS,M=uqqK  
} >GV = %  
G34fxhh  
Shell排序: krI@N}OU  
o@!Uds0  
package org.rut.util.algorithm.support; J;AwC>N  
Y3RaR 9  
import org.rut.util.algorithm.SortUtil; LWp#i8,  
0v/}W(  
/** TCI%Ox|a  
* @author treeroot 1P[[PvkD6  
* @since 2006-2-2 /3pvq%i  
* @version 1.0 K~DQUmU@  
*/ ] 3UlF'{  
public class ShellSort implements SortUtil.Sort{ g=5vnY  
XV|u!'Ey  
/* (non-Javadoc) 9C_Vb39::$  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;#jE??E/:  
*/ 3+>;$  
public void sort(int[] data) { +J<igb!S  
for(int i=data.length/2;i>2;i/=2){ >/5'0n_R  
for(int j=0;j insertSort(data,j,i); v62M8r,Y  
} dNg5#?mzT5  
} ?@uyqi~:U  
insertSort(data,0,1); C0> Z<z  
} zm7IkYF  
zF-R$_]av  
/** f;7I{Z\<  
* @param data NplWF\5y  
* @param j lI"~*"c`  
* @param i 2LqJ.HH  
*/ u{+z?N  
private void insertSort(int[] data, int start, int inc) { D`e6#1DbJ  
int temp; Svun RUE-f  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Ga M:/.  
} R@[gkj  
} Q?uHdmY*X  
} [W#M(`}D  
: 3 aZ_  
} R$Or&:E ^  
K#>@T<  
快速排序: 9\J.AAk~/  
<<5x"W(,  
package org.rut.util.algorithm.support; LI`H,2Km  
aR0'$*3E  
import org.rut.util.algorithm.SortUtil; M8p6f)l3  
9ER!K  
/** cFF'ygJ/  
* @author treeroot BV@xE  
* @since 2006-2-2 )] C"r_  
* @version 1.0 io1hUZ  
*/ AwQ7Oz|(  
public class QuickSort implements SortUtil.Sort{ }S_#*N)i  
zY^QZceq"  
/* (non-Javadoc) X]T&kdQ6q  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C1ZuDL)e  
*/ h:3^FV&#  
public void sort(int[] data) { r-aCa/4y!  
quickSort(data,0,data.length-1); "k'P #v{f  
} lc8zF5  
private void quickSort(int[] data,int i,int j){ 8EBy5X}US  
int pivotIndex=(i+j)/2; dtDT^~  
file://swap zHu w[  
SortUtil.swap(data,pivotIndex,j); \zMx~-2oN  
5dXDL~/2p  
int k=partition(data,i-1,j,data[j]); |K,[[D<R  
SortUtil.swap(data,k,j); .s8u?1b  
if((k-i)>1) quickSort(data,i,k-1); $FM: 8^  
if((j-k)>1) quickSort(data,k+1,j); A]_5O8<buW  
G%#M17   
} /ho7O/aAa  
/** ;T,`m^@zf  
* @param data A/A; '9  
* @param i :5, k64'D  
* @param j E$1P H)  
* @return *MM8\p_PuT  
*/ OS]FGD3a  
private int partition(int[] data, int l, int r,int pivot) { N6thbH@  
do{ *Q XUy  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Y-fDYMm  
SortUtil.swap(data,l,r); Y4j%K~ls Y  
} sG K7Uy  
while(l SortUtil.swap(data,l,r); hvo7T@*'  
return l; u`~,`z^{n  
} L2}p<?f  
n{8v^x  
} 5`QN<4?%  
dc=~EG-_rM  
改进后的快速排序: ^9`S`Bhp  
9tBE=L=  
package org.rut.util.algorithm.support; (D~NW*,9  
<Dq7^,}#  
import org.rut.util.algorithm.SortUtil; W'3~vQF  
9>7w1G#  
/** <C{uodFll  
* @author treeroot dR@XwEpP  
* @since 2006-2-2 bb}$7v`G  
* @version 1.0 <<~swN  
*/ >'g>CD!  
public class ImprovedQuickSort implements SortUtil.Sort {  <R.Ipyt.  
2}xvM"k=k  
private static int MAX_STACK_SIZE=4096; h'|J$   
private static int THRESHOLD=10; =OR "Bd:O  
/* (non-Javadoc) Dxp.b$0t  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *h)|K s  
*/ m&{%6  
public void sort(int[] data) { A=bBI>GEYP  
int[] stack=new int[MAX_STACK_SIZE]; }]!?t~5*  
:vo#(  
int top=-1; kB3@;z:  
int pivot; O&@pi-=o  
int pivotIndex,l,r; ay`A Gr  
.0b4"0~T6  
stack[++top]=0; ? e<D +  
stack[++top]=data.length-1; rcU*6`IWA  
MG(qQ#;j/  
while(top>0){ ['JIMcD  
int j=stack[top--]; LnlDCbF;!  
int i=stack[top--]; ||^+(  
7?W1i{(  
pivotIndex=(i+j)/2; KbM1b  
pivot=data[pivotIndex]; u.9syr  
"*JyNwf  
SortUtil.swap(data,pivotIndex,j); V PaW-o  
rPXy(d1<`S  
file://partition ;JV(!8[  
l=i-1; [iGL~RiXtn  
r=j; >))K%\p   
do{ (y!V0iy]  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); L7OFZ|gUz  
SortUtil.swap(data,l,r); kS1?%E,)q  
} rJw Ws  
while(l SortUtil.swap(data,l,r); U])$#/ v  
SortUtil.swap(data,l,j); vHM,_I{  
r"bV{v  
if((l-i)>THRESHOLD){ 4ztU) 1  
stack[++top]=i; \Jm^XXgS  
stack[++top]=l-1; >})W5Y+  
} pWOK~=t  
if((j-l)>THRESHOLD){ ;:Q&Rf"@%  
stack[++top]=l+1; =niT]xf  
stack[++top]=j; mT&?DZ9<  
} 5"mH6%d :8  
716r/@y$6  
} /M5R<rl  
file://new InsertSort().sort(data); C|-QU  
insertSort(data); )Nnrsa  
} xjH({(/B>a  
/** . l-eJ  
* @param data b<\aJb{2  
*/ n?}7vz;  
private void insertSort(int[] data) { :e!3-#H  
int temp;  @s7wKk  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); j:P(,M[  
} @G?R (  
} 9*;OHoDh  
} <Oihwr@5<  
I'e`?H t  
} $9rQ w1#e  
D]NJ ^.X  
归并排序: qj1Fj  
1dl(`=^X  
package org.rut.util.algorithm.support; v/[*Pze,C  
Kw87 0n<  
import org.rut.util.algorithm.SortUtil; |h^]`= 3  
Yc2dq e>  
/** 0}qnq"  
* @author treeroot fp?cb2'7  
* @since 2006-2-2 {vox x&UX  
* @version 1.0 O%*:fd,o-  
*/  Vl`!6.F3  
public class MergeSort implements SortUtil.Sort{ \kEC|O)8  
a_U[!`/ w  
/* (non-Javadoc) q:<vl^<j  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~=k?ea/>  
*/ @ @"abhT  
public void sort(int[] data) { JL!:`#\  
int[] temp=new int[data.length]; 0;Z] vl/|  
mergeSort(data,temp,0,data.length-1); `L7Cf&W\l8  
} |{9&!=/qf  
-s&7zqW  
private void mergeSort(int[] data,int[] temp,int l,int r){ ^k5#{?I  
int mid=(l+r)/2; fx*Q,}t  
if(l==r) return ; l9vJ]   
mergeSort(data,temp,l,mid); V(P 1{g  
mergeSort(data,temp,mid+1,r); "5b4fQ;x  
for(int i=l;i<=r;i++){ $5N\sdyZxg  
temp=data; Y_,Tm  
} d]+2rt}]hL  
int i1=l; ]:}x 4O#  
int i2=mid+1; 6oy[0hj  
for(int cur=l;cur<=r;cur++){ /0(c-Dv  
if(i1==mid+1) Wo7`gf_(  
data[cur]=temp[i2++]; 5 Mz6/&`  
else if(i2>r) ZYs?65.  
data[cur]=temp[i1++]; <8YIQA  
else if(temp[i1] data[cur]=temp[i1++]; !P@4dG  
else [Y-3C47  
data[cur]=temp[i2++]; Z}yd` 7  
} St;@ZV  
} SdNxSD$Q  
=i:,")W7=  
} gVI T6"/  
^a?g~G  
改进后的归并排序: X]c>clk,  
j5MUP&/g3  
package org.rut.util.algorithm.support; ;YY nIb(  
sfzDE&>'  
import org.rut.util.algorithm.SortUtil; 0 `$fs.4c  
EnP>  
/** q]#j,}cN9  
* @author treeroot LX{mr{  
* @since 2006-2-2 BDT"wy8  
* @version 1.0 lQ!(l Ph  
*/ ~ugH2jiB  
public class ImprovedMergeSort implements SortUtil.Sort { Y lhKP;  
bA\(oD+:  
private static final int THRESHOLD = 10; xwa@h}\#  
W<T Ui51Y  
/* (kL(:P/  
* (non-Javadoc) z C 7b  
* vf?Xt  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &?Z<"+B8S  
*/ P1dFoQz  
public void sort(int[] data) { 4P}d/w?'KL  
int[] temp=new int[data.length]; y/;DA=  
mergeSort(data,temp,0,data.length-1); dZuPR  
} Mw|lEctN0  
6 jU ?~  
private void mergeSort(int[] data, int[] temp, int l, int r) { 8f>v[SQ"  
int i, j, k; 'RZ0,SK'  
int mid = (l + r) / 2; cS(=wC  
if (l == r) ?D['>Rzu  
return; _V(FHjY  
if ((mid - l) >= THRESHOLD) o]@'R<F(u  
mergeSort(data, temp, l, mid); =}'7}0M_=  
else 2?kVbF  
insertSort(data, l, mid - l + 1); D*t[5,~j  
if ((r - mid) > THRESHOLD) 58t~? 2E  
mergeSort(data, temp, mid + 1, r); h(p c GE  
else O:Wd ,3_  
insertSort(data, mid + 1, r - mid); p<c1$O*  
&"d :+!4h  
for (i = l; i <= mid; i++) { vDCbD#.6  
temp = data; JfRqOEP4Y  
} uoTc c|Kc  
for (j = 1; j <= r - mid; j++) { A9y@v{txN  
temp[r - j + 1] = data[j + mid]; ]sJjV A  
} Uj^Y\w-@Z  
int a = temp[l]; j+[oZfH  
int b = temp[r]; 5h6-aQU[  
for (i = l, j = r, k = l; k <= r; k++) { T[kS;-x  
if (a < b) { &"DD&87N%  
data[k] = temp[i++]; {Zo*FZcaX  
a = temp; B/dJj#  
} else { '#lc?Y(pJ2  
data[k] = temp[j--]; pER[^LH_)  
b = temp[j]; MUUhg  
} ?N]G;%3/  
} W/.Wp|C}K3  
} =yZ6$ hK  
C:z7R" yj  
/** IwR=@Ne8  
* @param data B$MHn?  
* @param l UaBNoD  
* @param i I].ddR%  
*/ BO0Y#fs  
private void insertSort(int[] data, int start, int len) { ~^>g<YR[  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); (dP9`Na]  
} 2XyC;RWJ%  
} #>2cfZ`6'J  
} JPpNCC.b  
} \`W8#fob  
j43i:c;F  
堆排序: rh T!8dTk  
74a k|(!  
package org.rut.util.algorithm.support; M$e$%kPShE  
#M<u^$Jz  
import org.rut.util.algorithm.SortUtil; !}q@O-}j  
AmK g;9LS  
/** k#G+<7c<  
* @author treeroot uTrQ<|}#  
* @since 2006-2-2 H[N~)3x  
* @version 1.0 cFHSMRB|P  
*/ vj"['6Xa  
public class HeapSort implements SortUtil.Sort{ KN~Repcz@  
6C!TXV'  
/* (non-Javadoc) U["IXR#  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P_(< ?0l  
*/ {6iHUK   
public void sort(int[] data) { n1)].`  
MaxHeap h=new MaxHeap(); JqtOoR  
h.init(data); G$s=P  
for(int i=0;i h.remove(); =Ds&ArG  
System.arraycopy(h.queue,1,data,0,data.length); ~zDFL15w  
} JC9OL.Ob  
`[~LMV&2U  
private static class MaxHeap{ SDO~g~NTp  
+'a G{/J  
void init(int[] data){ mV}eMw  
this.queue=new int[data.length+1]; t![972.&  
for(int i=0;i queue[++size]=data; 1pT/`x  
fixUp(size); 5;A=8bryU  
} ;0}C2Cz'  
} vqo ~?9z[e  
:-~x~ah-  
private int size=0; KJ_L>$ ]*  
9g7Ok9dF  
private int[] queue; A/.z. K  
>Sm#-4B-  
public int get() { Ca0t}`<S  
return queue[1]; i8.OM*[f  
} RY*yj&?w [  
x5,|kJ9S  
public void remove() { cBU@853  
SortUtil.swap(queue,1,size--); d4o_/[  
fixDown(1); L>!MEMqm  
} 1wW4bg 5  
file://fixdown c}w[ T  
private void fixDown(int k) { [yVcH3GcjI  
int j; <n0j'P>1  
while ((j = k << 1) <= size) { :KsBJ>2ck  
if (j < size %26amp;%26amp; queue[j] j++; 4}Hf"L[ l  
if (queue[k]>queue[j]) file://不用交换 Co`:D  
break; ]CgZt' h{  
SortUtil.swap(queue,j,k); :U-yO 9!j  
k = j; uN6xOq/  
} |2&|#K4k^  
} BA_l*h%=Cc  
private void fixUp(int k) { }te dh  
while (k > 1) { 7G_OFD  
int j = k >> 1; 8TO5j  
if (queue[j]>queue[k])  3,Bm"'b6  
break; b2YOnV  
SortUtil.swap(queue,j,k); P> ~Lx  
k = j; Ms A)Y  
} cX5tx]  
} E /V`NqC  
 #uuNH(  
} 7/BA!V(na  
 DIh[%  
} -3C$br  
F-Ywl)  
SortUtil: ~PCS_  
T7Yg^ -"  
package org.rut.util.algorithm; E5$uvxCI  
;MjOs&1f0K  
import org.rut.util.algorithm.support.BubbleSort; <@=w4\5j9  
import org.rut.util.algorithm.support.HeapSort; x2+M0 }g  
import org.rut.util.algorithm.support.ImprovedMergeSort; -ha[xM05  
import org.rut.util.algorithm.support.ImprovedQuickSort; ;^P0+d^5C  
import org.rut.util.algorithm.support.InsertSort; ~T&X#i  
import org.rut.util.algorithm.support.MergeSort; dZ\T@9+j+  
import org.rut.util.algorithm.support.QuickSort; LY!.u?D`P  
import org.rut.util.algorithm.support.SelectionSort; zxvowM  
import org.rut.util.algorithm.support.ShellSort; ;\t(c  
ni3A+Y0  
/** =Lr# *ep[  
* @author treeroot >{juw&Uu  
* @since 2006-2-2 r'u[>uY  
* @version 1.0 8C2!Wwz`J8  
*/ VB{G% !}  
public class SortUtil { 5va ;Ol4  
public final static int INSERT = 1; =eG:Scoug?  
public final static int BUBBLE = 2; el,n5O Z7  
public final static int SELECTION = 3; 6}PoBhgSg-  
public final static int SHELL = 4; U &y?3  
public final static int QUICK = 5; 8wA'a'V.  
public final static int IMPROVED_QUICK = 6; sg,9{R ^  
public final static int MERGE = 7; 3<HPZWc  
public final static int IMPROVED_MERGE = 8; r;8$ 7C.  
public final static int HEAP = 9; P87qUC  
|C;*GeyS;J  
public static void sort(int[] data) { V$ac}A,!  
sort(data, IMPROVED_QUICK); ~kPZh1n`  
} U`ELd:  
private static String[] name={ _xU2C<)1&  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" WG3 .qLH%  
}; g [+_T{  
xr-v"-  
private static Sort[] impl=new Sort[]{ j es[a  
new InsertSort(), cGe-|>:  
new BubbleSort(), JU0|pstf  
new SelectionSort(), ^ZO3:"t!w  
new ShellSort(), `Yc>I!iN  
new QuickSort(), X !l#1  
new ImprovedQuickSort(), 4gK_' b6"  
new MergeSort(), 5}2XnM2  
new ImprovedMergeSort(), aD8r:S\  
new HeapSort() x)o`w"]al  
}; =%oKYQ  
j0[9Cj^%c  
public static String toString(int algorithm){ KR/SMwy  
return name[algorithm-1]; *7 >K"j  
} -AU!c^-o  
n7K\\|X  
public static void sort(int[] data, int algorithm) { +W9#^  
impl[algorithm-1].sort(data); L\X 2Olfz1  
} 8p~G)J3U  
D[}qhDlX  
public static interface Sort { VcR(9~  
public void sort(int[] data); kc70HrG  
} 4f> s2I&pQ  
%q 7gl;'  
public static void swap(int[] data, int i, int j) { n+uDg  
int temp = data; h^"OC$  
data = data[j]; I%31MU9  
data[j] = temp; pwO U6A!  
} j#E&u*IR  
} |\ 4cQ  
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