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
  • 8056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@JY-^~K5  
插入排序: ]H:K$nmX  
p*P0<01Z  
package org.rut.util.algorithm.support; VyU!r* o  
C~iFFh6:  
import org.rut.util.algorithm.SortUtil; LY0/\Z"N  
/** etW-gbr  
* @author treeroot /C<} :R  
* @since 2006-2-2 jP @t!=  
* @version 1.0 Rx<[bohio  
*/ $AFiPH9  
public class InsertSort implements SortUtil.Sort{ e ]>{?Z  
8/34{2048  
/* (non-Javadoc) nDC5/xB  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qmnCa&C9  
*/ RDG,f/L2  
public void sort(int[] data) { I@a7!ugU65  
int temp; XeBSHvO_  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ;`bJgSCfo  
} MD:kfPQ  
} G[yN*C  
} Dc> )js|"  
r52,f%nlm  
} uP ?gGo  
[/t/694  
冒泡排序: !as<UH"\  
sEfGf.  
package org.rut.util.algorithm.support; xcIZ'V  
nuv$B >  
import org.rut.util.algorithm.SortUtil; 28+ Sz>SP  
y+iuA@WCv  
/** 0H.B>: pv  
* @author treeroot fs]Zw mA^  
* @since 2006-2-2 &sA6o"h~  
* @version 1.0 ~pSD|WX  
*/ o:Z*F0qm  
public class BubbleSort implements SortUtil.Sort{ +FVcrL@  
l:+pO{7L  
/* (non-Javadoc) H "?-&>V-  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) zT+yZA.L  
*/ cfe[6N  
public void sort(int[] data) { =Jl1D*B*  
int temp; Pq7tNM E  
for(int i=0;i for(int j=data.length-1;j>i;j--){ TAJ9Y<  
if(data[j] SortUtil.swap(data,j,j-1); Y=rW.yK8  
} Js#c9l{{  
} `TsfscN  
} l1_X5DI  
} m~NWY$oI9[  
Xhkw<XbV  
} &FvNz  
lB\j>.c  
选择排序: ?y45#Tk]  
LveqG   
package org.rut.util.algorithm.support; +Vf|YLbhJ  
S(-=I!.G{  
import org.rut.util.algorithm.SortUtil; iii$)4V  
M[*:=C)H  
/** 't_=%^ q  
* @author treeroot c!\y\r  
* @since 2006-2-2 $BBfsaJPT  
* @version 1.0 qP<,"9!I  
*/ \M532_w  
public class SelectionSort implements SortUtil.Sort { }w]xC  
+`Bn]e8O  
/* n _ez6{  
* (non-Javadoc) GRV9s9^  
* :3n.nKANr  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a@r K%Iff  
*/ D3lYy>~d5;  
public void sort(int[] data) { 80]TKf>  
int temp; ];2eIe  
for (int i = 0; i < data.length; i++) { h+^T);h};|  
int lowIndex = i; n0i&P9@B1  
for (int j = data.length - 1; j > i; j--) { FfgJ 2y  
if (data[j] < data[lowIndex]) { a!^wc,  
lowIndex = j; A07 P$3>/W  
} +@qk=]3a  
} ]D-48o0  
SortUtil.swap(data,i,lowIndex); XP;&iZJ  
} #"yf^*wX  
} 7ER 2 h*  
f}'gg  
} }Voh5*$E`  
<d5vVn  
Shell排序: I !<v$  
Qy/bzO  
package org.rut.util.algorithm.support; c_a$g  
+l/j6)O`(m  
import org.rut.util.algorithm.SortUtil; S'JeA>L  
KE&}*Nf[  
/** qtH&]Suu,  
* @author treeroot pz IMj_  
* @since 2006-2-2 *(MvNN*  
* @version 1.0 *_wef/==  
*/ Q%xY/xH]  
public class ShellSort implements SortUtil.Sort{ ?(<AT]hV:  
udZ: OU<  
/* (non-Javadoc) hw'2q9J|  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S7q &|nI  
*/ "qm>z@K  
public void sort(int[] data) { mfN@tMp  
for(int i=data.length/2;i>2;i/=2){ rWs5s!l,  
for(int j=0;j insertSort(data,j,i); rpT<cCem1  
} N]<gHGj}  
} XfrnM^oty  
insertSort(data,0,1); _dBU6U:V  
} h*9o_  
S+y2eP G  
/** =5M>\vt]  
* @param data dJ^`9W  
* @param j G0Eq }MyF  
* @param i YcV~S#b  
*/ h^*{chm]  
private void insertSort(int[] data, int start, int inc) { <"+C<[n.  
int temp; RM+E  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); fx-*')  
} oCYD@S>h  
} /nP=E  
} m'B6qy!}6  
MX0B$yc$  
} T!a[@,)_  
RGLA}|  
快速排序: `x VA]GR4c  
Wd5t,8*8  
package org.rut.util.algorithm.support; y#DQOY+@^#  
dZgfls  
import org.rut.util.algorithm.SortUtil; NLGr=*dq  
^e,RM_.  
/** i?/?{p$#a-  
* @author treeroot $bosGG  
* @since 2006-2-2 ~&:R\  
* @version 1.0 ECzNByP  
*/ vrv*k  
public class QuickSort implements SortUtil.Sort{ swFOh5z  
-JENY|6  
/* (non-Javadoc) @ 1A_eF  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) q_&IZ,{Vk  
*/ EvmmQ  
public void sort(int[] data) { 1W[(+TZ&s  
quickSort(data,0,data.length-1); AZy2Pu56  
} []0~9,u  
private void quickSort(int[] data,int i,int j){ :a@z53X@M  
int pivotIndex=(i+j)/2; Y7)@(7G)\  
file://swap 2oG|l!C  
SortUtil.swap(data,pivotIndex,j); " G6j UTt  
h,'+w  
int k=partition(data,i-1,j,data[j]); @EZONKT  
SortUtil.swap(data,k,j); l5ds`uR#  
if((k-i)>1) quickSort(data,i,k-1); q*nz4QTOE  
if((j-k)>1) quickSort(data,k+1,j); W@dY:N}  
UJ$:5*S=u  
} odf^W  
/** ,P@-DDJ  
* @param data DZ.trtK  
* @param i  0QqzS  
* @param j HjS^ nYl  
* @return !y~b;>887  
*/ j]"xck  
private int partition(int[] data, int l, int r,int pivot) { !@Lc/'w  
do{ 9nS!  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); %:?QE ;  
SortUtil.swap(data,l,r); xN8JrZE&  
} SqF.DB~  
while(l SortUtil.swap(data,l,r); !gHWYWu)!  
return l; :[f`HY&  
} QS*cd|7J;  
X", 0VO  
} f94jMzH9z  
wP0+Xv,  
改进后的快速排序: c@7hLUaE2  
O f@#VZ  
package org.rut.util.algorithm.support; {dXBXC/Ju  
mS}x2 &  
import org.rut.util.algorithm.SortUtil; `j}d=zZ  
b|o!&9Yyr  
/** !o':\hex6  
* @author treeroot !gfhEz Y  
* @since 2006-2-2 _C,@eu"9V  
* @version 1.0 O:tX0<6  
*/ 'A!/pUML  
public class ImprovedQuickSort implements SortUtil.Sort { ZCFf@2&z8  
XuoEAu8]  
private static int MAX_STACK_SIZE=4096; |;m`874  
private static int THRESHOLD=10;  &Z!K]OSY  
/* (non-Javadoc) H&Y{jqua  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y*cJ4hQ  
*/ PFy;qk  
public void sort(int[] data) { 65#:2,s  
int[] stack=new int[MAX_STACK_SIZE]; ?VP!1O=J  
/ &D$kxz  
int top=-1; g^$11  
int pivot; 33'lZ ubV  
int pivotIndex,l,r; D#Yx,`Ui  
Ij}F<ZgZG  
stack[++top]=0; (e3Gs+;  
stack[++top]=data.length-1; T) tZU?  
;GFB@I@  
while(top>0){ )(Mr f{  
int j=stack[top--]; )1nCw  
int i=stack[top--]; #3yw   
&_/%2qs  
pivotIndex=(i+j)/2; "=\_++  
pivot=data[pivotIndex]; 6eYf2sZ;J  
oXlxPN39  
SortUtil.swap(data,pivotIndex,j); _ c ]3nzIr  
66@3$P%1p  
file://partition K}E7|gdG  
l=i-1; h<' 5q&y  
r=j; Oqpl2Y"/  
do{ R=9~*9  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); u@_!mjXQ  
SortUtil.swap(data,l,r); t_>bTcsU  
} o;4e)tK  
while(l SortUtil.swap(data,l,r); ~@uY?jr  
SortUtil.swap(data,l,j); TF0-?vBWh  
$W {yK+N  
if((l-i)>THRESHOLD){ ,mjfZ*N  
stack[++top]=i; AOlt,MNpQ  
stack[++top]=l-1; Z\=04[  
} j H.Ju|nO  
if((j-l)>THRESHOLD){ jXY;V3l  
stack[++top]=l+1; c\)&yGE  
stack[++top]=j; cP@F #!2  
} PL9eUy  
r ctSS:1  
} s |gD  
file://new InsertSort().sort(data); u2-@?yt  
insertSort(data); ]r6BLZ[%  
} leES YSY:  
/** ke9QT#~p!-  
* @param data Fb|e]?w  
*/ v=.z|QD^1  
private void insertSort(int[] data) { &H4uvJ_<  
int temp; ?)mhJ/IT  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); xa{<R+LR  
} :\+{;;a@  
} O/Y\ps3r  
} C?60`^  
X(y  
} YF! &*6m  
JU'WiR bcb  
归并排序: lQdnL.w$.4  
r!.+XrYg  
package org.rut.util.algorithm.support; i,'Ka[6   
O| 1f^_S/  
import org.rut.util.algorithm.SortUtil; xdL/0 N3  
50`iCD  
/** EO].qN-8  
* @author treeroot X$-b oe?  
* @since 2006-2-2 %]chL.s  
* @version 1.0 m +Q5vkW  
*/ Cv>yAt.3  
public class MergeSort implements SortUtil.Sort{ 3_L1Wm  
xz"Z3B  
/* (non-Javadoc) ke}Y 2sB  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,yk PQzO  
*/ WO.0K5nfk  
public void sort(int[] data) { uS,p|}Q&  
int[] temp=new int[data.length]; rmPne8D=c(  
mergeSort(data,temp,0,data.length-1); lk[G;=K:.  
} B0)`wsb_  
8 _4l"v p  
private void mergeSort(int[] data,int[] temp,int l,int r){ 8 )mjy!,  
int mid=(l+r)/2; -7I1Lh#M  
if(l==r) return ; #ox9&  
mergeSort(data,temp,l,mid); dU ,)TKQ  
mergeSort(data,temp,mid+1,r); $bZu^d,  
for(int i=l;i<=r;i++){ *|LbbRu  
temp=data; E[jXUOu-  
} Q(IJD4  
int i1=l; R%b*EBZ  
int i2=mid+1; /lLov.  
for(int cur=l;cur<=r;cur++){ O->_/_  
if(i1==mid+1) (ve+,H6w\  
data[cur]=temp[i2++]; k-WHHoU>o  
else if(i2>r) Qj 6gg  
data[cur]=temp[i1++]; cc|CC Zl  
else if(temp[i1] data[cur]=temp[i1++]; a[1sA12  
else Pqy-gWOv  
data[cur]=temp[i2++]; N>d|A]zH  
} ,4H;P/xsb  
} }rz dm9  
xdd:yrC   
} ~~C6)N~1  
~@T+mHny  
改进后的归并排序: X0y?<G1( a  
i>Z|6 5  
package org.rut.util.algorithm.support; ^uyNv-'F  
E tJ~dL)  
import org.rut.util.algorithm.SortUtil; VLcyPM@"Q!  
0LWdJ($?  
/** j|VXC(6 P,  
* @author treeroot 81g9ZV(4  
* @since 2006-2-2 Ro'jM0(KE  
* @version 1.0 gB]C&Q  
*/  6Xdtr  
public class ImprovedMergeSort implements SortUtil.Sort {  d?:`n 9`  
C(-[ Y!  
private static final int THRESHOLD = 10; aGPqh,<QD  
Q0V^PDF  
/* 0jR){G9+  
* (non-Javadoc)  5ZnSA9?  
* Y 3o^Euou  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $d'CBsu|<  
*/ {]&R8?%  
public void sort(int[] data) { JAc@S20v\  
int[] temp=new int[data.length]; pO"m~mpA  
mergeSort(data,temp,0,data.length-1); R{*_1cyW  
} p{NPcT%&  
)fNGB]%  
private void mergeSort(int[] data, int[] temp, int l, int r) { q}>M& *  
int i, j, k; L)q`D2|'  
int mid = (l + r) / 2; Uh|TDuM  
if (l == r) W|;nJs:e  
return; C@%iQ]=  
if ((mid - l) >= THRESHOLD) jEUx q%BH  
mergeSort(data, temp, l, mid); Ns'FH(:  
else l <:`~\#  
insertSort(data, l, mid - l + 1); z>6.[Z(T  
if ((r - mid) > THRESHOLD) c  Qld$  
mergeSort(data, temp, mid + 1, r); 1'NhjL  
else o g_Ri$x8  
insertSort(data, mid + 1, r - mid); RNGO~:k?r  
P,(9cyS{  
for (i = l; i <= mid; i++) { ~\2;i]|  
temp = data; ucw`;<d8  
} 7g-Dfg.w  
for (j = 1; j <= r - mid; j++) { 4Mk8Cpz  
temp[r - j + 1] = data[j + mid]; f, |QAj=a  
} MzcB3pi  
int a = temp[l]; x'@W=P 7   
int b = temp[r]; R;WW f.#  
for (i = l, j = r, k = l; k <= r; k++) { Q-[3j  
if (a < b) { a;%I\w;2  
data[k] = temp[i++]; w{3ycR  
a = temp; u[)_^kIE(n  
} else { W:WQaF`2x  
data[k] = temp[j--]; cI5N"U@yN  
b = temp[j]; Tj=gRQ2v  
} (I[s3EnhS  
} > 84e`aGE  
} 4 bn t=5]  
*t^eNUA  
/** RF:04d  
* @param data \UOm]z  
* @param l j(sLK &  
* @param i W;qP=DK2  
*/ 47KNT7C  
private void insertSort(int[] data, int start, int len) { 8+ov(B;(  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 22z1g(; @  
} DacN {r"3  
} >E, Q  
} YV-j/U{&  
} 1DUb [W8  
q]K'p,'  
堆排序: "rsSW 3_  
avg4K*vv  
package org.rut.util.algorithm.support; ^ESUMXb  
`g--QR  
import org.rut.util.algorithm.SortUtil; ^_sQG  
"v5ElYG  
/** m~;B:LN<  
* @author treeroot [_V:)  
* @since 2006-2-2 B_hPcmB  
* @version 1.0 ;`+`#h3-V  
*/ 5Dd:r{{ Q  
public class HeapSort implements SortUtil.Sort{ "CBRPp  
j1A|D   
/* (non-Javadoc) `kFiH*5%z  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p-xd k|'[  
*/ 0'`S,  
public void sort(int[] data) { 6lsEGe  
MaxHeap h=new MaxHeap(); `"c'z;  
h.init(data); `;$h'eI9  
for(int i=0;i h.remove(); ->h5T%sn  
System.arraycopy(h.queue,1,data,0,data.length); [X<Pk  
} ;g+]klR!  
wN(&5rfS  
private static class MaxHeap{ FIS "Z(  
6T_K9  
void init(int[] data){ 6Cv.5V hx  
this.queue=new int[data.length+1]; !>3LGu,  
for(int i=0;i queue[++size]=data; ;}K62LSR  
fixUp(size); -%,"iaO  
} IXWQ)  
} |4fF T `  
5]d{6Nc3P  
private int size=0; )S*1C@  
<: :VCA%  
private int[] queue; s1 bU  
hO3 {  
public int get() { Wo!;K|~P  
return queue[1]; u h )o  
} CW p#^1F  
1'Rmg\(  
public void remove() { n'M>xq_  
SortUtil.swap(queue,1,size--); w"~<h;  
fixDown(1); \J3/keL  
} u%B&WwHG  
file://fixdown ;|HL+je;Z  
private void fixDown(int k) { Z7z]2v3}c  
int j; @PX\{6&  
while ((j = k << 1) <= size) { 2"X~ju  
if (j < size %26amp;%26amp; queue[j] j++; id?E)Jy  
if (queue[k]>queue[j]) file://不用交换 OhFW*v  
break; "(f`U.  
SortUtil.swap(queue,j,k); oL-2qtv  
k = j; RgZOt[!.  
} Hhl-E:"H`  
} /8c&Axuv  
private void fixUp(int k) { ~KPv7WfG  
while (k > 1) { 4-^[%&>}  
int j = k >> 1; 0[Eb .2I  
if (queue[j]>queue[k]) Qnt5HSSt  
break; `*_CElpP"  
SortUtil.swap(queue,j,k); pRrHuLj^  
k = j; Z9[+'ZWt  
} <cj{Qk  
} Ryv_1gR!  
0` 5e  
} I2[]A,f ,  
'3Q3lM'lh  
} R\O.e  
>{nH v)  
SortUtil: rt}^4IqL  
?lKhzH.T  
package org.rut.util.algorithm; i\Wdo/c-H  
%\6Q .V#s  
import org.rut.util.algorithm.support.BubbleSort; *yez:qnx  
import org.rut.util.algorithm.support.HeapSort; !OAvD#  
import org.rut.util.algorithm.support.ImprovedMergeSort; %u!b& 5]e  
import org.rut.util.algorithm.support.ImprovedQuickSort; !MV@) (.  
import org.rut.util.algorithm.support.InsertSort; W5 ec  
import org.rut.util.algorithm.support.MergeSort; #|f~s  
import org.rut.util.algorithm.support.QuickSort; i=rH7k  
import org.rut.util.algorithm.support.SelectionSort; .<YcSG  
import org.rut.util.algorithm.support.ShellSort; 8@eOTzm  
L'E^c,-x~  
/** fYX<d%?7  
* @author treeroot eV2mMSY  
* @since 2006-2-2 =w%Oa<  
* @version 1.0 ej^3Y Nh&  
*/ U(,.D}PG  
public class SortUtil { ahGT4d`)9  
public final static int INSERT = 1; /XbW<dfl  
public final static int BUBBLE = 2;  v~=\H  
public final static int SELECTION = 3; v("wKHWTI@  
public final static int SHELL = 4; r*XLV{+4  
public final static int QUICK = 5; N$#\Xdo  
public final static int IMPROVED_QUICK = 6; ,:GN;sIXg  
public final static int MERGE = 7; *y]+dK&-  
public final static int IMPROVED_MERGE = 8; K{=PQ XSU  
public final static int HEAP = 9; :L:&t,X  
fY W|p<Q0  
public static void sort(int[] data) { +B"0{>n}F  
sort(data, IMPROVED_QUICK); ;rR/5d1!  
} %!|O.xxRR  
private static String[] name={ E^CiOTN  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" z]@6fM[  
}; Tv$sqVe9  
$[ z y  
private static Sort[] impl=new Sort[]{ wT_h!W  
new InsertSort(), 7wVH8^|  
new BubbleSort(), ^4pto$#@O:  
new SelectionSort(), rx!=q8=0R  
new ShellSort(), n7! H:{L  
new QuickSort(), FHg0E++?  
new ImprovedQuickSort(), 6v732;^  
new MergeSort(), j-b*C2l  
new ImprovedMergeSort(), &c%Y<1e`%  
new HeapSort() 0XU}B\'<  
}; n}nEcXb  
8@\7&C(g17  
public static String toString(int algorithm){ "![L#)"s  
return name[algorithm-1]; m_7 nz!h  
} dh -,E  
d) ahF[82  
public static void sort(int[] data, int algorithm) { m%r/O&g  
impl[algorithm-1].sort(data); #wR;|pN  
} Zv!{{XO2;  
,r^"#C0J}  
public static interface Sort { 57I}RMT"  
public void sort(int[] data); 8P: spD0  
} F- rQ3  
N4!<Xj  
public static void swap(int[] data, int i, int j) { [f{VIE*?%  
int temp = data; 4. qtp`  
data = data[j]; MaY682}|y  
data[j] = temp; v"O5u%P  
} e2)autBe  
} I4c!m_sr  
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:
3+5=?,请输入中文答案:八 正确答案:八