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
  • 8997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。 iJp!ROI  
插入排序: m#}{"d&J  
GT`<jzAiQ  
package org.rut.util.algorithm.support; 0T{Y_IG  
9[]"%6  
import org.rut.util.algorithm.SortUtil; pa> 2JF*  
/** rQQPs\o  
* @author treeroot #}]il0d  
* @since 2006-2-2 3E2.v5*  
* @version 1.0 %?{2uMfq-f  
*/ d-S'y-V?d  
public class InsertSort implements SortUtil.Sort{ '' A[`,3  
1J%qbh  
/* (non-Javadoc) $R#L@iL-  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) cd%g]T)#1  
*/ 4>tYMyLt0  
public void sort(int[] data) { 5<GRi "7A@  
int temp; <?va) ou  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); moM&2rgdrQ  
} _/w-gL{  
} a*wJcJTpV"  
} 0dX=  
D@vvy6>~s  
} ';L^mxh  
LyPBFo[?  
冒泡排序: o5G"J"vxe  
8LM1oal}  
package org.rut.util.algorithm.support; C5n=2luI_  
PHL@1K{)  
import org.rut.util.algorithm.SortUtil; xTawG?"D  
kx#L<   
/** OU3+SYM  
* @author treeroot {zN_l!  
* @since 2006-2-2 ,ce^"yG  
* @version 1.0 !5 :[XvI#  
*/ EF^=3  
public class BubbleSort implements SortUtil.Sort{ #3[b|cL  
7;-i_&vws  
/* (non-Javadoc) 5 nIlG  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qO3BQ]UF  
*/ r0uXMr=Z96  
public void sort(int[] data) { wdDHRW0Y  
int temp; . t%Vx  
for(int i=0;i for(int j=data.length-1;j>i;j--){ Jt, 4@  
if(data[j] SortUtil.swap(data,j,j-1); N S}`(N  
} G(3la3\(  
} "^e?E:( 3  
} h}<ZZ  
} 5Cyjq0+  
: )*Ge3  
} m-FDCiN>  
&B,& *Lp  
选择排序: RvZ-w$E&?  
e(% Solkm?  
package org.rut.util.algorithm.support; 1Moh`  
o-Fle, qf  
import org.rut.util.algorithm.SortUtil; /g7?,/vnZ  
6zZR:ej  
/** ]TprPU39  
* @author treeroot ^ nZ2p$  
* @since 2006-2-2 Sg~A'dG  
* @version 1.0 {hP&P  
*/ U jzz`!mz  
public class SelectionSort implements SortUtil.Sort { ? Z fhz   
'm? x2$u8  
/* fhWD>;%F%  
* (non-Javadoc) nL20}"$E  
* (SVr>|Db  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3s$.l }  
*/ MF sy`aiS  
public void sort(int[] data) { A+E@OOw*~  
int temp; xyWdzc] (p  
for (int i = 0; i < data.length; i++) { 8mddI  
int lowIndex = i; ?bDae%>.d,  
for (int j = data.length - 1; j > i; j--) { (uc)^lfX  
if (data[j] < data[lowIndex]) { jz:c)C&/  
lowIndex = j; ryLNMh  
} g'7hc~=  
} u(`A?H:  
SortUtil.swap(data,i,lowIndex); l#.,wOO{  
} RteTz_ z{  
} r@UY$z  
0! %}  
} qyfxTQ5  
3+uoK f[  
Shell排序: XB 7^Ka  
'+tT$k  
package org.rut.util.algorithm.support; PzkXrDlB7  
'Rw] C[  
import org.rut.util.algorithm.SortUtil; lc#zS_  
 P;/wb /  
/** *uM*)6O 3  
* @author treeroot ]arskmB]  
* @since 2006-2-2 -RDs{c`y%N  
* @version 1.0 @ &yj7-]  
*/ bj{f[nZ d  
public class ShellSort implements SortUtil.Sort{ dV  
hkI);M+@6  
/* (non-Javadoc) #vwXxr  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >g2.z>  
*/ JAlsc]XtO9  
public void sort(int[] data) {  Bz~h-  
for(int i=data.length/2;i>2;i/=2){ J :(\o=5 5  
for(int j=0;j insertSort(data,j,i); FWN%JCOj@  
} MX\-)e#  
} dF]8>jBOL  
insertSort(data,0,1); gi >{`.]  
} zD-8#H35X"  
PaJwM%s)L  
/** 'A2"&6m)28  
* @param data _8`;Xgp  
* @param j VbR.tz  
* @param i 1 R9/AP  
*/ 1 to<at-NN  
private void insertSort(int[] data, int start, int inc) { ibw;BU  
int temp; Jz'+@q6h  
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); K 5[ 3WHQ  
} r!iuwE@  
} h!GixN?  
} Jj:4@p:  
^u,x~nPXg  
} NZP,hAUK,  
B[V=l<J  
快速排序: _,~zy9{,  
f'U]Ik;Jy  
package org.rut.util.algorithm.support; fTgN2U  
'YZs6rcJ  
import org.rut.util.algorithm.SortUtil; KIJ[ cIw  
Hm*#HT%#  
/** ;d40:q<  
* @author treeroot  cf!R  
* @since 2006-2-2 c Zr4  
* @version 1.0 RoRVu,1  
*/ iKY&gnu"  
public class QuickSort implements SortUtil.Sort{ _AHVMsz@  
YfKty0  
/* (non-Javadoc) V|7CYkB8  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4/|=0TC;  
*/ UMaKvr-C&  
public void sort(int[] data) { t57b)5{FM  
quickSort(data,0,data.length-1); lh5d6VUA  
} s'I$yJ)@2E  
private void quickSort(int[] data,int i,int j){ rgY~8PY"  
int pivotIndex=(i+j)/2; V.1sZYA9  
file://swap FU3B;Fn^Z(  
SortUtil.swap(data,pivotIndex,j); xd@DN;e  
p.|; k%c7  
int k=partition(data,i-1,j,data[j]); l?[DO?m+R  
SortUtil.swap(data,k,j); CG;D(AWR;  
if((k-i)>1) quickSort(data,i,k-1); A>puk2s  
if((j-k)>1) quickSort(data,k+1,j); oMbCljUC  
rg~CF<  
} Xv:IbM> Qc  
/** i$bBN$<b<  
* @param data uX[ "w|  
* @param i Q<pM tW  
* @param j k~ue^^r}  
* @return %?jf.p*kY  
*/ ~T~v*'_h  
private int partition(int[] data, int l, int r,int pivot) { #v-!GK_<  
do{ ./'n2$^3  
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); !TF VBK  
SortUtil.swap(data,l,r); L')zuI  
} <9~qAq7^  
while(l SortUtil.swap(data,l,r); b&1@rE-  
return l; =qRVKz  
} (1^(V)@  
|*$_eb  
} x?IT#ty  
*&D=]fG  
改进后的快速排序: -E7\ .K3  
T2{+fR v N  
package org.rut.util.algorithm.support; KX`,7-  
e j9G[  
import org.rut.util.algorithm.SortUtil; NL 37Y{b  
`upNP/,  
/** k s}o9[D3  
* @author treeroot RAC-;~$WB  
* @since 2006-2-2 ./d (@@  
* @version 1.0 cx|j _5%i  
*/ $/H'Dt6x  
public class ImprovedQuickSort implements SortUtil.Sort { G. }yNjL8  
@w0[5ZAj  
private static int MAX_STACK_SIZE=4096; ?*4zNhL  
private static int THRESHOLD=10; "^H+A-R[  
/* (non-Javadoc) \<} nn?~n  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) L;"<8\vWB  
*/ jo ^*R'}  
public void sort(int[] data) { ?6dtvz;K+?  
int[] stack=new int[MAX_STACK_SIZE]; fVM%.`  
CvN~  
int top=-1; ?HY0@XILI  
int pivot; dQ[lXV[}v  
int pivotIndex,l,r; e9d~Xi16KY  
}W<L;yD  
stack[++top]=0; mI# BQE`p6  
stack[++top]=data.length-1; B.?yHaMI[  
iJi|*P5dw  
while(top>0){  oa|0=  
int j=stack[top--]; L*z;-,  
int i=stack[top--]; P*SXfb"HC  
aI{[W;43T  
pivotIndex=(i+j)/2; J:5n/m^A  
pivot=data[pivotIndex]; gT.-Cf{  
}/VHeHd  
SortUtil.swap(data,pivotIndex,j); |Xag:hof  
UTPl7po5D  
file://partition i]nE86.;  
l=i-1; { at; U@o  
r=j; /y0 )r.R  
do{ fp7Qb $-A  
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 1 f=L8Dr  
SortUtil.swap(data,l,r); }=U\v'%m  
} <da! #12L  
while(l SortUtil.swap(data,l,r); 1}6pq 2  
SortUtil.swap(data,l,j); -cKR15  
vzw\f   
if((l-i)>THRESHOLD){ so7;h$h!H  
stack[++top]=i; ld $`5!Z  
stack[++top]=l-1; W.a/k7 p  
} t]x HM  
if((j-l)>THRESHOLD){ EVf'1^f  
stack[++top]=l+1; ' |Oi#S  
stack[++top]=j; k=@Q#=;*[W  
} C$bK!]a  
h@J`:KO  
} )d(cXN-T  
file://new InsertSort().sort(data); J0#% *B  
insertSort(data); Ur`v*LT}~  
} 78%2#;;G  
/** 8<^,<?  
* @param data gDsZbmR  
*/ ^Z*_@A_v  
private void insertSort(int[] data) { rnr7t \a~]  
int temp; c|7Pnx%gT  
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); R8 m/N t2  
} 7-5q\[ZK  
} /Hx\ gtV  
} U2aE:$oeYi  
`9ieTt  
} p})&Zl)V  
3EyN"Lvp{o  
归并排序: P ,i)A  
h %nZKhm  
package org.rut.util.algorithm.support; !hq7R]TC+  
v zn/waw  
import org.rut.util.algorithm.SortUtil; J.-#:OZ  
&0#qy9wx  
/** Cpj_mMtu  
* @author treeroot .C #}g  
* @since 2006-2-2 \||PW58j  
* @version 1.0 %S^`/Snv"  
*/ z+ 4R[+[  
public class MergeSort implements SortUtil.Sort{ C?B7xK  
pTTif|c  
/* (non-Javadoc) 9$_}E`  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) eE&F1|8  
*/ D,hl+P{^K  
public void sort(int[] data) { &(0iSS  
int[] temp=new int[data.length]; `<K#bDU;a  
mergeSort(data,temp,0,data.length-1); sLTf).xh  
} DgdW.Kj|IL  
.Ybm27Dk  
private void mergeSort(int[] data,int[] temp,int l,int r){ F kWJB>  
int mid=(l+r)/2; ^I0SfZ'Y  
if(l==r) return ; xWDwg@ P  
mergeSort(data,temp,l,mid); ?*T`a oB  
mergeSort(data,temp,mid+1,r); !B\\:k]aO^  
for(int i=l;i<=r;i++){ G67BQG\av  
temp=data; iz'8P-]K>  
} pS%Az)3RZ  
int i1=l; $exu}%  
int i2=mid+1; .VUZ4e  
for(int cur=l;cur<=r;cur++){ hE=cgO`QU  
if(i1==mid+1) %pMW5]H  
data[cur]=temp[i2++]; $]Q_x?  
else if(i2>r) zYep V  
data[cur]=temp[i1++]; TqlUe@E  
else if(temp[i1] data[cur]=temp[i1++]; u%|VmM>  
else X)yTx8v4  
data[cur]=temp[i2++]; lu>>~vy6  
} ]\jhtC=2  
} J@Li*Ypo  
7DI8r|~  
}  E5o0^^  
P`"dj@1'  
改进后的归并排序: _ pJU~8  
qYpHH!!C=  
package org.rut.util.algorithm.support; C }!$'C|  
^)SvH  
import org.rut.util.algorithm.SortUtil; Z?GC+hG`  
aqMZ%~7  
/** {ng  
* @author treeroot >uQ!B/C!  
* @since 2006-2-2 9u:MF0:W  
* @version 1.0 9`b*Y*d  
*/ tp1{)|pwY6  
public class ImprovedMergeSort implements SortUtil.Sort { 5B51^"  
>V]> h&`  
private static final int THRESHOLD = 10; 5Zq- |"|  
Me8d o; G|  
/* F`-? 3]\3  
* (non-Javadoc) LJBoS]~  
* 0S' EnmG  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) t >8t|t+  
*/ uZqo"  
public void sort(int[] data) { d>(dSKx  
int[] temp=new int[data.length]; eo@:@O+bm  
mergeSort(data,temp,0,data.length-1); IlaH,J7n  
} ^ML2xh  
:!3P4?a  
private void mergeSort(int[] data, int[] temp, int l, int r) { L\b$1U!i  
int i, j, k; UP,(zKTA  
int mid = (l + r) / 2; '8}\! i&  
if (l == r) cd:O@)i  
return; M HgS5b2  
if ((mid - l) >= THRESHOLD) >`6^1j(3  
mergeSort(data, temp, l, mid); 5Wn6a$^  
else v+\E%H  
insertSort(data, l, mid - l + 1); 7$^V_{ej  
if ((r - mid) > THRESHOLD) N%^mR>.`  
mergeSort(data, temp, mid + 1, r);  fBQZ=zh  
else {!=I GFe  
insertSort(data, mid + 1, r - mid); w PV`j:?'  
R+^/(Ws'<  
for (i = l; i <= mid; i++) { w("jyvV[C  
temp = data; #|'8O  
} 2[W Qq)\  
for (j = 1; j <= r - mid; j++) { K[ylyQ1  
temp[r - j + 1] = data[j + mid]; C~l5D4D#  
} Sm-nb*ZyC  
int a = temp[l]; s_RYYaM  
int b = temp[r]; $+?6U  
for (i = l, j = r, k = l; k <= r; k++) { 0|HhA,u  
if (a < b) { /A_ IS`  
data[k] = temp[i++]; 9gWQGkql  
a = temp; a5&wS@) ;  
} else { MT0}MMr  
data[k] = temp[j--]; b?r0n]  
b = temp[j]; %';n9M  
} g :O.$  
} 3 \kT#nr  
} `pLp+#1 `R  
\0b ",|"3  
/** eNXpRvY  
* @param data E fqa*,k  
* @param l ;T/' CD  
* @param i ~kYF/B2*  
*/ RRV&!<l@$  
private void insertSort(int[] data, int start, int len) { (2%C% #]8  
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 2!jbaSH(+  
} U:`rNHl  
} | WDX@Q  
} #8[,w.X  
} %,>,J`  
|FKo}>4  
堆排序: v}iJ :'  
/Fk0j_b  
package org.rut.util.algorithm.support; =r GkM.^  
YXBS!89m  
import org.rut.util.algorithm.SortUtil; |px4a"  
;1"K79  
/** >0512_J+  
* @author treeroot T nPC\.x  
* @since 2006-2-2 #{N#yReh  
* @version 1.0 \Z)'':},C  
*/ u |#ruFR  
public class HeapSort implements SortUtil.Sort{ vnIxI a  
J :,  
/* (non-Javadoc) DrW]`%Ql  
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) FxD"z3D  
*/ n)pBK>+  
public void sort(int[] data) { uZ OUp8QQ  
MaxHeap h=new MaxHeap(); pKp#4Js  
h.init(data); EQ7cK63  
for(int i=0;i h.remove(); OD*DHC2rN]  
System.arraycopy(h.queue,1,data,0,data.length); y 5=J6a2.  
} !rrjA$P<v  
u} KiSZxt  
private static class MaxHeap{ I</Nmgf  
ECl[v%R/6  
void init(int[] data){ R4{}ZT  
this.queue=new int[data.length+1]; hf%W grO.  
for(int i=0;i queue[++size]=data; @89mj{  
fixUp(size); c-gaK\u}j}  
} 5nEvnnx0  
} slw^BK3t  
1)k))w9  
private int size=0; G|H\(3hHLZ  
Y/{Z`}  
private int[] queue; 6#dx%TC  
.}j@(D  
public int get() { \QHM7C T  
return queue[1]; #He:p$43  
} J,jl(=G  
mD|<qsY)  
public void remove() { 0E++  
SortUtil.swap(queue,1,size--); KX*e2 /0  
fixDown(1); ?t<wp3bZ  
} W/J3sAYv  
file://fixdown q^,^tw  
private void fixDown(int k) { `GH6$\:  
int j; ncihc$V<  
while ((j = k << 1) <= size) { >o(*jZ  
if (j < size %26amp;%26amp; queue[j] j++; CuDU~)`  
if (queue[k]>queue[j]) file://不用交换 SR8[ 7MU  
break; F[ 9IHT6{  
SortUtil.swap(queue,j,k); SUx\qz)  
k = j; ab 2 V.S  
} mQ1QJ_;  
} d{DlW |_  
private void fixUp(int k) { [rGR1>U?i  
while (k > 1) { *mBn''a"*  
int j = k >> 1; .i`+}@iA  
if (queue[j]>queue[k]) u*H2kn[DU  
break; $z` jR*  
SortUtil.swap(queue,j,k); t+66kBN  
k = j; J&h 3,  
} k \]@  
} 7rsrC  
"%0RR?  
} R(x% <I  
rs\*$20  
} 3DgI.V6un  
X~W5Z(w(O  
SortUtil: 6I 2`m(5  
k%uRG_  
package org.rut.util.algorithm; #bf^Pq'8  
=(v/pLLK?  
import org.rut.util.algorithm.support.BubbleSort; -Xx,"[sN\w  
import org.rut.util.algorithm.support.HeapSort; o'R_kadN[T  
import org.rut.util.algorithm.support.ImprovedMergeSort; K@ W~  
import org.rut.util.algorithm.support.ImprovedQuickSort; IgSe%B  
import org.rut.util.algorithm.support.InsertSort; .8g&V|  
import org.rut.util.algorithm.support.MergeSort; F5)Ta?3|"<  
import org.rut.util.algorithm.support.QuickSort; yp!Xwq#n  
import org.rut.util.algorithm.support.SelectionSort; ?p\'S w:  
import org.rut.util.algorithm.support.ShellSort; NW^}u~-f  
GAPZt4Z2  
/** mo <g'|0  
* @author treeroot hZ$* sf  
* @since 2006-2-2 l *pCG`@J#  
* @version 1.0 v]vrD2L  
*/ .\< \J|3  
public class SortUtil { `/Z8mFs Y  
public final static int INSERT = 1; {T.$xiR  
public final static int BUBBLE = 2; A:k`Ykr[  
public final static int SELECTION = 3; JQI`9$asuC  
public final static int SHELL = 4; %M~Ugv_4v  
public final static int QUICK = 5; I]TL#ywF   
public final static int IMPROVED_QUICK = 6;  vUJb-  
public final static int MERGE = 7; {:fyz#>>^  
public final static int IMPROVED_MERGE = 8; bQ_i&t\yzB  
public final static int HEAP = 9; Fa@#nY|UV3  
=OhhMAn  
public static void sort(int[] data) { gM_Z/$  
sort(data, IMPROVED_QUICK); Pq;1EI  
} +X.iJ$)  
private static String[] name={ ZH.l^'(W  
"insert", "bubble", "selection", "shell", "quick", "improved_quick", "merge", "improved_merge", "heap" Z=n& fsE  
}; R%}OZJ_  
Jd/ 5Kx  
private static Sort[] impl=new Sort[]{ MI<hShc\  
new InsertSort(), {hVSVx8ZL  
new BubbleSort(), <9B43  
new SelectionSort(), Vs m06Rj{  
new ShellSort(), bm(0raugs  
new QuickSort(), ^Fy) oWS  
new ImprovedQuickSort(), Tf*X\{"  
new MergeSort(), |+ @  
new ImprovedMergeSort(), p5>TL!4M  
new HeapSort() mN*9X[ >x  
}; mrk Q20D  
nL@P {,J  
public static String toString(int algorithm){ hg=\L5R  
return name[algorithm-1]; _d)w, ;m#  
} 0jE,=<W0>  
rcNM,!dZ  
public static void sort(int[] data, int algorithm) { Hya*7l']B  
impl[algorithm-1].sort(data); (w@|:0t^y[  
} d$b{KyUA  
'}LH,H:%G  
public static interface Sort { (w4#?_  
public void sort(int[] data); m[]p IXc(  
} P?\rRB  
cXtL3T+  
public static void swap(int[] data, int i, int j) { Q >)?_O(  
int temp = data; 1*G7Uh@K}  
data = data[j]; 7ugmZO}lL  
data[j] = temp; @^#y23R U  
} u.$.RkNMQ  
} B% BO  
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
温馨提示:欢迎交流讨论,请勿纯表情、纯引用!
认证码:
验证问题:
3+5=?,请输入中文答案:八 正确答案:八