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
  • 5729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。 N y_d  
插入排序: e UMOV]h  
OwhMtYq  
package org.rut.util.algorithm.support; R42+^'af  
*?sdWRbu}l  
import org.rut.util.algorithm.SortUtil; VF8pH <  
/** {%g]Ym=  
* @author treeroot l /?Jp+]  
* @since 2006-2-2 %JUD54bBt  
* @version 1.0 5>z`==N)  
*/ 8nzDLFxp_  
public class InsertSort implements SortUtil.Sort{ m-V_J`9"  
HCOv<k  
/* (non-Javadoc) Nn/me  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Ql`N)!  
*/ Ph@hk0dgr/  
public void sort(int[] data) { ~>8yJLZ.7  
int temp; ZDHm@,d  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); NP }b   
} $tKz|H)  
} ;+:C  
} }>`rf{T  
@smjXeF o  
} WdQR^'b$   
A HnXN%m  
冒泡排序: (^h2 'uB  
qg_M9xJ  
package org.rut.util.algorithm.support; 0hJ,l.  
N %;bV@A9  
import org.rut.util.algorithm.SortUtil;  ! @EZ  
&y\7pAT\  
/** dM n0nc+  
* @author treeroot 9j'(T:Zs  
* @since 2006-2-2 !vd(WKq  
* @version 1.0 b+b].,  
*/ #8xP,2&zf  
public class BubbleSort implements SortUtil.Sort{ [wp(s2=  
mdzUL d5J  
/* (non-Javadoc) W(~7e?fO  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C/34K(  
*/ . W ~&d_n  
public void sort(int[] data) { Z=c&</9e  
int temp; ),DLrGOl  
for(int i=0;i for(int j=data.length-1;j>i;j--){ {tE9m@[AF  
if(data[j] SortUtil.swap(data,j,j-1); CKB~&>xx  
} &E& _Z6#  
} -jXO9Q  
} Epo/}y  
} mKTE%lsH  
3MqyHOOv  
} mbSG  
yRd[ $p  
选择排序: \0)v5u  
r Uau? ?  
package org.rut.util.algorithm.support; x-E@[=  
4$~A%JN3  
import org.rut.util.algorithm.SortUtil;  m$XMq  
wk+| }s  
/** >#u9W'@|  
* @author treeroot wqx9  
* @since 2006-2-2 LH_VdLds  
* @version 1.0 (^!$m7  
*/ N [qNSo|  
public class SelectionSort implements SortUtil.Sort { zE,1zBS<  
7{W#i<W  
/* ?WEKRl  
* (non-Javadoc) $[S)A0O  
* gUa-6@  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2!kb?  
*/ h^ o@=%b  
public void sort(int[] data) { 5rX_85]  
int temp; l&JV.}qGB8  
for (int i = 0; i < data.length; i++) { 8'<RPU}M  
int lowIndex = i; \+iZdZD  
for (int j = data.length - 1; j > i; j--) { rS|nO_9f  
if (data[j] < data[lowIndex]) { ~DJILc  
lowIndex = j; uW 7Yem&  
} >f\$~cp  
} 3*8m!gq7s  
SortUtil.swap(data,i,lowIndex); \&XtPQ  
} c^F@9{I  
} jNbU{Z%r  
^55q~DP}>  
} ! (H RP9  
vV PK  
Shell排序: 8T523VI  
Q8h0:Q  
package org.rut.util.algorithm.support; q1Sr#h|  
dy"7Wl]hi7  
import org.rut.util.algorithm.SortUtil; 9EFQo^ E  
xoe/I[P]U  
/** qk}Mb_*C)  
* @author treeroot z*ly`-!  
* @since 2006-2-2 D~Rv"Hh  
* @version 1.0 Tebu?bj  
*/ `ElJL{Rn  
public class ShellSort implements SortUtil.Sort{ ,DIr&5>p2  
[wkSY>Gu  
/* (non-Javadoc) j=kz^o~mH  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ZCAg)/  
*/ ./qbWr`L  
public void sort(int[] data) { 7X{@$>+S  
for(int i=data.length/2;i>2;i/=2){ WupONrH1e  
for(int j=0;j insertSort(data,j,i); $ ?*XPzZ  
} Q$^)z_jai  
} -n"7G%$M  
insertSort(data,0,1); w678  
} 0Qr|!B:+9)  
q,>-4Cm  
/** @v~<E?Un  
* @param data w,zm$s^  
* @param j pY$DOr- r`  
* @param i 2J&J  
*/ 9i`MUE1Sh  
private void insertSort(int[] data, int start, int inc) { !*!i&0QC~R  
int temp; 6^QSV@N|  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); M <K}H8?  
} :G4)edwe  
} 2{A/Fbk  
} l\6.f_  
dTVh{~/  
} R^VmNj  
Ae8P'FWB>  
快速排序: [A'9sxG  
ijeas<  
package org.rut.util.algorithm.support; $wm8N.I3I  
K<vb4!9Z9  
import org.rut.util.algorithm.SortUtil; G\C>fwrP_  
0?w4  
/** @$7l  
* @author treeroot O_P8OA#|  
* @since 2006-2-2 fX/k;0l  
* @version 1.0 QI4a@WB]ok  
*/ NOQSLT=  
public class QuickSort implements SortUtil.Sort{ 2PViY,V|  
yP"D~u  
/* (non-Javadoc) ./_4D}  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) S]<%^W'  
*/ OV`#/QL  
public void sort(int[] data) { UNCI"Mjb  
quickSort(data,0,data.length-1); XQStlUw8+  
} t@cImmh\T  
private void quickSort(int[] data,int i,int j){ /g\m7m)u  
int pivotIndex=(i+j)/2; !{S HlS  
file://swap ' fka?lL  
SortUtil.swap(data,pivotIndex,j); *n*po.Xr  
{SwvUWOf"  
int k=partition(data,i-1,j,data[j]); CuA A)Bj  
SortUtil.swap(data,k,j); V\/5H~L  
if((k-i)>1) quickSort(data,i,k-1); yIf>8ed]#  
if((j-k)>1) quickSort(data,k+1,j); Ey]P >J  
"%dok@v  
} pIgjo>K  
/** ` 7jdV  
* @param data D {N,7kT  
* @param i Stk'|-z  
* @param j zuYz"-(L  
* @return x}7`Q:k=  
*/ X+'B*K$  
private int partition(int[] data, int l, int r,int pivot) { /9<62F@zJ"  
do{ WV,j <x9w  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Ixr#zt$T-G  
SortUtil.swap(data,l,r); icXeB_&cS  
} gVN&?`k*?  
while(l SortUtil.swap(data,l,r); =`f"8 ,5  
return l; qVr?st  
} KF f6um  
v0W/7?D  
} ^cI 0 d,3=  
Y/`*t(/5  
改进后的快速排序: B'-L-]\H  
b\^9::oY  
package org.rut.util.algorithm.support; 2@?\"kR"!  
m:C|R-IL  
import org.rut.util.algorithm.SortUtil; vx4Jk]h+=L  
:M\3.7q  
/** I7HP~v~  
* @author treeroot :eL ja*  
* @since 2006-2-2 +*Pj,+;W  
* @version 1.0 5tcJT z  
*/ &)F# cVB  
public class ImprovedQuickSort implements SortUtil.Sort { r1AG1Y  
la*c/*  
private static int MAX_STACK_SIZE=4096; }Oe9Zq  
private static int THRESHOLD=10; 5 u^;71  
/* (non-Javadoc) k-|b{QZ8!;  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) O_|p{65  
*/ PJ'.s  
public void sort(int[] data) { UO8./%'  
int[] stack=new int[MAX_STACK_SIZE]; 3vRBK?Q.y  
t'DYT"3  
int top=-1; rRd8W}B  
int pivot; wf/DLAC  
int pivotIndex,l,r; hG qZB  
[a\>"I\[  
stack[++top]=0; FW,@.CX  
stack[++top]=data.length-1; t.6gyrV7><  
N-<m/RS  
while(top>0){ +I_p\/J?w/  
int j=stack[top--]; S#f}mb0,  
int i=stack[top--]; 8L,i}hIo.  
YN($rAkL  
pivotIndex=(i+j)/2; 9/4Bx!~A  
pivot=data[pivotIndex]; K91.-k3)$  
Cl'3I%$8K  
SortUtil.swap(data,pivotIndex,j); )+v' @]r  
.h@HAnmE  
file://partition G&v. cF#Y'  
l=i-1; 1`l10fqU  
r=j; QP1 bm]QYA  
do{ TI^M9;b  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 1xt N3{c  
SortUtil.swap(data,l,r); ZY{zFg9  
} ^laf!kIP  
while(l SortUtil.swap(data,l,r); $ZfoJR]%  
SortUtil.swap(data,l,j); RMO6kbfP  
%N0cp@Vz  
if((l-i)>THRESHOLD){ EP}NT)z,{  
stack[++top]=i; F<|x_6a\  
stack[++top]=l-1; 'qnnZE  
} 2kQa3Pan  
if((j-l)>THRESHOLD){ 8[mj*^P  
stack[++top]=l+1; z!/ MBM  
stack[++top]=j; h;Se.{  
} @Sd l~'"  
5Q.z#]L g  
} ,`;Dre  
file://new InsertSort().sort(data); O*y@4AR"S  
insertSort(data); BZ -)XF'4  
} xH/Pw?^  
/** &s<'fSI  
* @param data E-XFW]I  
*/ Ialbz\;F2%  
private void insertSort(int[] data) { )R]gJ_ ,c  
int temp; _.G p}0a  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); BHEZ<K[U   
} o7WK"E!pF'  
} k=r)kkO)  
} Fmux#}Z  
g xf|L>=  
} !>gu#Q{\-  
4KCJ(<p|  
归并排序: Ceco^Mw  
(b4;c=<[{  
package org.rut.util.algorithm.support; @gHWU>k,A  
- |j4u#z  
import org.rut.util.algorithm.SortUtil; TWk1`1|  
kG70j{gf  
/** [t}$W*hY  
* @author treeroot [Csv/  
* @since 2006-2-2 %9P)Okq  
* @version 1.0 268H!'!\  
*/ sPUn"7  
public class MergeSort implements SortUtil.Sort{ cri.kr9Y  
s u)AIvF{  
/* (non-Javadoc) }ikJ a  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) SB\T iH/  
*/ %?~`'vYoi  
public void sort(int[] data) { {'R\C5 :D7  
int[] temp=new int[data.length]; OJ Y_u[  
mergeSort(data,temp,0,data.length-1); 2E d  
} X__>r ?oJ  
+ ZxG<1&  
private void mergeSort(int[] data,int[] temp,int l,int r){ AB1,G|L  
int mid=(l+r)/2; 1} h''p  
if(l==r) return ; XI*cu\7sy  
mergeSort(data,temp,l,mid); f0,,<ib.w  
mergeSort(data,temp,mid+1,r); @Nk]f  
for(int i=l;i<=r;i++){ #pm0T1+jW  
temp=data; FZW:dsm  
} r7=r~3)  
int i1=l; BV`,~n:  
int i2=mid+1; bcCCvV}6WZ  
for(int cur=l;cur<=r;cur++){ H^\2,x Z  
if(i1==mid+1) sHi *\  
data[cur]=temp[i2++]; `OWw<6`k  
else if(i2>r) U)g2 7*7  
data[cur]=temp[i1++]; ;mYj`/Yj  
else if(temp[i1] data[cur]=temp[i1++]; c _faW  
else g<"k\qs7  
data[cur]=temp[i2++]; e$+/;MRq  
} qqR8E&Y{  
} fR6.:7&  
%juR6zB%8  
} F4%vEn\!  
5v@-.p  
改进后的归并排序: ywS2` (  
qq1@v0  
package org.rut.util.algorithm.support; GDMg.w 4Yk  
<R>%DD=v^  
import org.rut.util.algorithm.SortUtil; uh_ 2yw_  
X_nxC6[m%  
/** d#*n@@V4  
* @author treeroot 4Ev#`i3~  
* @since 2006-2-2 hR1n@/nh  
* @version 1.0 @<W^/D1#L  
*/ /K2=GLl;  
public class ImprovedMergeSort implements SortUtil.Sort { !<P|:Oo*Dl  
E6FT*}Q  
private static final int THRESHOLD = 10; mtQlm5l  
%oY=.Ok ]  
/* Xzp!X({   
* (non-Javadoc) vuCl(/P`  
* *He%%pk  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3.^Tm+ C  
*/ ' 3MCb  
public void sort(int[] data) { B}YpIb]d  
int[] temp=new int[data.length]; ozr82  
mergeSort(data,temp,0,data.length-1);  T.{sO`  
} 'QrvkQ  
(,5,}  
private void mergeSort(int[] data, int[] temp, int l, int r) { n,E =eNc  
int i, j, k; dY'mY~Tv  
int mid = (l + r) / 2; t@(`24  
if (l == r) `0qBuE_^h  
return; P b(XR+  
if ((mid - l) >= THRESHOLD) :Vyr8+]  
mergeSort(data, temp, l, mid); kA1C&  
else '"/Yk=EmlU  
insertSort(data, l, mid - l + 1); XW*,Lo5>H\  
if ((r - mid) > THRESHOLD) @\|W#,~  
mergeSort(data, temp, mid + 1, r); )GpH5N'EI  
else lwU$*?yv  
insertSort(data, mid + 1, r - mid); xc HG5bg |  
ojA i2uz  
for (i = l; i <= mid; i++) { pDg_^|  
temp = data; O0Vtvbj  
} _FRwaFVJ3  
for (j = 1; j <= r - mid; j++) { And|T 6u  
temp[r - j + 1] = data[j + mid]; }>|M6.n "  
} K3Wh F  
int a = temp[l]; }9qbF+b  
int b = temp[r]; ?pAO?5Z:}  
for (i = l, j = r, k = l; k <= r; k++) { Vif0z*\e{  
if (a < b) { ;GgW&*|  
data[k] = temp[i++]; EGKj1_ml  
a = temp; aj71oki)  
} else { GWU"zWli]z  
data[k] = temp[j--]; W]t!I}yPR  
b = temp[j]; cxNb!G  
} ba-J-G@YW  
} Snav)Hb'  
} O&Ws*k  
lOc!KZHUp  
/** Y8^pgv  
* @param data OZ /!= ;  
* @param l keBf^NY  
* @param i A* =r~T5B  
*/ aNLkkkJg<;  
private void insertSort(int[] data, int start, int len) { >pVrY; P[  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); aq|R?  
} #00k7y>OyD  
} hpqM fz1  
} Y}/e" mp  
} 45u\v2,C3  
Y)-)owx7  
堆排序: .[1"3!T  
u9:+^F+  
package org.rut.util.algorithm.support; l^@!,Z  
Eep*,Cnt0  
import org.rut.util.algorithm.SortUtil; eoC@b/F4  
#ZPU.NNT?  
/** )<kI d4E  
* @author treeroot ;-OnCLr  
* @since 2006-2-2 hSO(s  
* @version 1.0 0 tZ>yR  
*/ WP@IV;i  
public class HeapSort implements SortUtil.Sort{ t#Q" ;e  
.!kO2/:6  
/* (non-Javadoc) } +@H&}u  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [`_ZlC  
*/ JMUk=p<\  
public void sort(int[] data) { B4<W%lm  
MaxHeap h=new MaxHeap(); %4%$NdU"  
h.init(data); [^cflmV  
for(int i=0;i h.remove(); d=TZaVL$$  
System.arraycopy(h.queue,1,data,0,data.length); x tJ_azt  
} %|3I|'%Y  
&!y7PWHJ  
private static class MaxHeap{ :< )"G&  
q]-CTx$  
void init(int[] data){ j#C1+Us  
this.queue=new int[data.length+1]; b&y"[1`  
for(int i=0;i queue[++size]=data; DRBRs-D  
fixUp(size); +0,{gDd+  
} u]B15mT?  
} =*AAXNs@3  
y}fF<qih'>  
private int size=0; yN0!uzdW*  
AX Y.80+  
private int[] queue; T4OH,^J  
c\n&Z'vK  
public int get() { V>{G$(v$  
return queue[1]; Bc/'LI.%  
} M<A*{@4$w&  
X_7cwPY  
public void remove() { Ag>E%N  
SortUtil.swap(queue,1,size--); A?DgeSm  
fixDown(1); &nc 0stuL  
} cmzu @zq  
file://fixdown (|6Y1``  
private void fixDown(int k) { LEq"g7YH  
int j; W-QBC- 3  
while ((j = k << 1) <= size) { Y1?"Ut  
if (j < size %26amp;%26amp; queue[j] j++; /-#1ys#F=  
if (queue[k]>queue[j]) file://不用交换 )w{bT]   
break; ^ lUV^%f  
SortUtil.swap(queue,j,k); d,Fj|}S  
k = j; !T((d7;  
} 4>uy+"8PO  
} 6N{V cfq  
private void fixUp(int k) { P <$)v5f  
while (k > 1) { Wz}8O]#/.  
int j = k >> 1; X}Ey6*D:  
if (queue[j]>queue[k]) ~\4B 1n7  
break; aKLA_-E  
SortUtil.swap(queue,j,k); dF d^@b  
k = j; D^?jLfW8  
} `m~x*)L#  
} _^)Wrf+  
4@K9%  
} 6I$laHx?  
LP{{PT.&X  
} 0Cox+QJt  
K+0&~XU  
SortUtil: _f~(g1sE  
j.3#rxq  
package org.rut.util.algorithm; 7j>NUx=j3  
?e`4 s f_~  
import org.rut.util.algorithm.support.BubbleSort; )yV|vn  
import org.rut.util.algorithm.support.HeapSort; 19Cs 3B\4  
import org.rut.util.algorithm.support.ImprovedMergeSort; (RDY-~#~  
import org.rut.util.algorithm.support.ImprovedQuickSort; B8jSdlvz  
import org.rut.util.algorithm.support.InsertSort; N=>6PLie  
import org.rut.util.algorithm.support.MergeSort; &=1A g}l57  
import org.rut.util.algorithm.support.QuickSort; s`j QX\{  
import org.rut.util.algorithm.support.SelectionSort; 4(VVEe  
import org.rut.util.algorithm.support.ShellSort; ho1Mo  
vhw"Nl  
/** Z~g I)  
* @author treeroot r'kUU] j9  
* @since 2006-2-2 rjmKe*_1V  
* @version 1.0 y:U'3G-  
*/ oD$8(  
public class SortUtil { LQ,RQ~!  
public final static int INSERT = 1; dLtSa\2Hn  
public final static int BUBBLE = 2; +E8Itb,  
public final static int SELECTION = 3; 4"OUmh9LHB  
public final static int SHELL = 4; E<[_L!2  
public final static int QUICK = 5; -BY'E$]4  
public final static int IMPROVED_QUICK = 6; bYuQ"K A$  
public final static int MERGE = 7; 0_}^IiG  
public final static int IMPROVED_MERGE = 8; } {! #` 's  
public final static int HEAP = 9; 1v)X]nW  
!]%M  
public static void sort(int[] data) { tSST.o3  
sort(data, IMPROVED_QUICK); C~do*rnM^  
} p!+7F\  
private static String[] name={ S?X2MX  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" qf/1a CQiP  
}; +Za ew679  
~R;9a"nr  
private static Sort[] impl=new Sort[]{ AML8.wJ  
new InsertSort(), 49)A.Bh&!  
new BubbleSort(), @%4MFc0`!  
new SelectionSort(), jpL' y1@Ut  
new ShellSort(), $jt  UQ1  
new QuickSort(), ,BK6a'1J  
new ImprovedQuickSort(), ;l^4/BR  
new MergeSort(), ?;{fqeJz  
new ImprovedMergeSort(), p*11aaIbp~  
new HeapSort() :ZP4(}  
}; [x {S ,?6  
CaX0Jlk*  
public static String toString(int algorithm){ e ~X<+3<  
return name[algorithm-1]; UbBo#(TZ)  
} GVFR^pzO  
)$V&Nf  
public static void sort(int[] data, int algorithm) { vepZod}D  
impl[algorithm-1].sort(data); .g CC$  
} x^UE4$oo  
E$$pO.\  
public static interface Sort { GZL{~7n  
public void sort(int[] data); J`6X6YZ  
} ~~U2Sr  
?e? mg  
public static void swap(int[] data, int i, int j) { .YvE  
int temp = data; }yCw|B|a  
data = data[j]; Km~\^(a '  
data[j] = temp; 89I[Dg;"u  
} 9Fe(],AzF  
} ? x1"uH  
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
欢迎提供真实交流,考虑发帖者的感受
认证码:
验证问题:
10+5=?,请输入中文答案:十五