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。 4+:'$Nw
插入排序: 1L%$\0B4hm
:cKdl[E4z
package org.rut.util.algorithm.support; {g 4`>^;
9B/iQCFtj$
import org.rut.util.algorithm.SortUtil; q;.LK8M
/** 45H9pY w
* @author treeroot Y/T-2)D
* @since 2006-2-2 =w7+Yt
* @version 1.0 \|C*b<
*/ T0N6k acl
public class InsertSort implements SortUtil.Sort{ q<[o 4qY
e4FR)d0x
/* (non-Javadoc) a H\A
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ko"xR%Q
*/ a5 pXn v]A
public void sort(int[] data) { gOr%N!5
int temp; @M6F?;
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); :qj7i(
} h0")NBRV&
} pGr4b:N
} v oO7W"
F{Oaxn
} 6Zx5^f(qd
dEkAUH
冒泡排序: h:i FLS f
&t6:1 T
package org.rut.util.algorithm.support; h-\Ov{~
:mhO/Bx
import org.rut.util.algorithm.SortUtil; N]-skz<v
sF3@7~m4
/** e.W <pI,
* @author treeroot ,[<$X{9
* @since 2006-2-2 -/:K.SY,
* @version 1.0 QZJnb%]
*/ KE-0/m4yJ
public class BubbleSort implements SortUtil.Sort{ )hC3'B/[Y
& jm1
/* (non-Javadoc) mV+9*or
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lUdk^7:M
*/ v8zO Y#?
public void sort(int[] data) { ^%0^DN
int temp; Hc-up.?v'v
for(int i=0;i for(int j=data.length-1;j>i;j--){ q2/kegAT
if(data[j] SortUtil.swap(data,j,j-1); lYmxd8
} c]"w0a-`^@
} ;]k\F
} (gIFuOGi>
} ;rV+eb)I
_{n4jdw%(
} -/Zy{2 <u
J>"qeR
/
选择排序: *BvdL:t
#kE8EhQZ
package org.rut.util.algorithm.support; #J t1AV
u>=\.d<
import org.rut.util.algorithm.SortUtil; F$i 6
ihekON":
/** +U4';[LG1C
* @author treeroot \-sW>LIA
* @since 2006-2-2 v`S ;.iD
* @version 1.0 O$N;a9g
*/ IC1nR
u2I
public class SelectionSort implements SortUtil.Sort { DXQ]b)y+N
c}s#!|E0v
/* *=tA },`\7
* (non-Javadoc) y6Ez.$M
* lMcO2006L
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @bChJl4
*/ "&o"6ra}
public void sort(int[] data) { dnV&U%fO
int temp; y`z4S,
for (int i = 0; i < data.length; i++) { C~pQJ@bF0
int lowIndex = i; Yhjv[ 9
for (int j = data.length - 1; j > i; j--) { (?ULp{VPFl
if (data[j] < data[lowIndex]) { wd3OuDrU
lowIndex = j; FjMKb
} *j=58d`n
} ]wfY<Z
SortUtil.swap(data,i,lowIndex); 9_8\xLk
} =R ZPDu
} ZXXJ!9-&+J
g yegdky3
} ryqu2>(
;j
qF:Wl@
Shell排序: nM *}VI
M+%qVwp
package org.rut.util.algorithm.support; ;+bF4r@:+
#m;o)KkH$r
import org.rut.util.algorithm.SortUtil; lM#,i\8Q
o ZQ@ Yu3
/** ym_as8A*Q
* @author treeroot aX*9T8H/
* @since 2006-2-2 @pH6FXVGzt
* @version 1.0 {&L^|X
*/ Fnay{F8z
public class ShellSort implements SortUtil.Sort{ )l/
.<`|
g<7Aln}Nl\
/* (non-Javadoc) ia-ht>F*;
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k~I]Y,
*/ ";7/8(LBZ
public void sort(int[] data) { f=.!/e70
for(int i=data.length/2;i>2;i/=2){ (F9e.QyWb
for(int j=0;j insertSort(data,j,i); 6uKP
BL@,
} ; 6PRi/@
} BoOuN94
insertSort(data,0,1); u~>G8y)k9O
} x-W~&`UU
j"fx|6l)
/** Lf%=vd
* @param data dp&G([
* @param j HXC\``E
* @param i [lVfhXc&
*/ !%$,S=_F
private void insertSort(int[] data, int start, int inc) { (nXnP{yb
int temp; ,In%r`{i
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); C+"c^9[
} HF"TS*
} 8aKS=(Z!j
} o7WAH@g
!"&-k:|g
} bC98<if
=qpGAv_#
快速排序: |=KzQY|u
f=VlO d
package org.rut.util.algorithm.support; 6 EfBz
fK *l?Hr
import org.rut.util.algorithm.SortUtil; s:_a.4&Y
JYmYX-
/** '.<c[Mp
* @author treeroot Gt
_tL%
* @since 2006-2-2 q'4P/2)va
* @version 1.0 cP\z*\dS
*/ !Q5,Zhgr
public class QuickSort implements SortUtil.Sort{ ew~?&=
U@CAQ?
/* (non-Javadoc) B}. :7,/0
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nK)1.KVN
*/ !uO@4]:Y
public void sort(int[] data) { ~j(vGO3JB
quickSort(data,0,data.length-1); QgQclML1|
} u;!h
private void quickSort(int[] data,int i,int j){ D~Ef%!&
int pivotIndex=(i+j)/2; KUK.;gG*Z
file://swap pzoh9}bue
SortUtil.swap(data,pivotIndex,j); ]9)iBvQlj
#sBL E
int k=partition(data,i-1,j,data[j]); 0
f$96sl
SortUtil.swap(data,k,j); G
9(*F
if((k-i)>1) quickSort(data,i,k-1); -84%6p2-
if((j-k)>1) quickSort(data,k+1,j); R4P&r=?
d:>'c=y
} uK`gveY
/** R9Wr?
* @param data J/:U,01
* @param i 'o4`GkNh)
* @param j oylQCbT
* @return :zq Un&k&
*/ 5f?GSHA}
private int partition(int[] data, int l, int r,int pivot) { *W`7JL,
do{ )UpVGT)
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); u[PG/ploc
SortUtil.swap(data,l,r); aXG|IN5 *m
} JM?__b7g2
while(l SortUtil.swap(data,l,r); aG#d41O
return l; [CfZE
} \8m9^Z7IfK
*OdmKVw6G
} J\w4N",
8F[ ;ma>Z8
改进后的快速排序: 4nP4F+
Ge=^q.
package org.rut.util.algorithm.support; Rm}5AJ
);_ /0:
import org.rut.util.algorithm.SortUtil; oU @!R
U<Qi`uoj!
/** +N7<[hE;
* @author treeroot lJ]QAO
* @since 2006-2-2 tm1&OY
* @version 1.0 u\=
05N6G
*/ F?"Gln~;
public class ImprovedQuickSort implements SortUtil.Sort { n4M
Xa()P1
3e47UquZ
private static int MAX_STACK_SIZE=4096; d>W#c8X>
private static int THRESHOLD=10; {.p;V
/* (non-Javadoc) hkm}oYW+
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %&VI-7+K
*/
(n~fe-?}8
public void sort(int[] data) { _b>{:H&\
int[] stack=new int[MAX_STACK_SIZE]; >o v#\
R@s|bs?
int top=-1; n7G`b'
int pivot; s$qc&
int pivotIndex,l,r; q
:~/2<o
oNw=O>v
stack[++top]=0; Lu:*nJ%1[
stack[++top]=data.length-1; A+foc5B
+boL?Ix+
while(top>0){ nxBP@Td
int j=stack[top--]; cYe2a"
int i=stack[top--]; u-s*k*VHoc
]!P8 {xmb@
pivotIndex=(i+j)/2; S]|sKY
pivot=data[pivotIndex]; rc<Ix
d4ld-y
SortUtil.swap(data,pivotIndex,j); ?Js4\X!uJ
vu.?@k@
file://partition G4~@
l=i-1; VF";p^
r=j; >i >|]
do{ 8#tuB8>
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); oF]]Pl{W
SortUtil.swap(data,l,r); _yR_u+5
} ;|oft-y
while(l SortUtil.swap(data,l,r); oqysfLJ
SortUtil.swap(data,l,j); q+oc^FD?@
q m_m8
if((l-i)>THRESHOLD){ )*XWe|H_
stack[++top]=i; ER~RBzp
stack[++top]=l-1; k'N``.
} O CIoY?a
if((j-l)>THRESHOLD){ yocFdI
stack[++top]=l+1; 4e
eh+T
stack[++top]=j; 3(|,:"9g
} $N}t)iA
Ab/JCZNn
} D}X6I#U'/
file://new InsertSort().sort(data); 3h>L0
insertSort(data); H~vrCi~t"
} %,z;W-#gnY
/** 4%8den,|
* @param data cuumQQ
*/ rO.[/#p\
private void insertSort(int[] data) { f(blqO.@l
int temp; u^|cG{i5"
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); cLwnV.
} mI DVN
} *s"OqTM]x
} ABe25Sus
IzUpkwN
} f.^|2T I1g
7)[Ve1;/N
归并排序: +[MHl
tu$rVwgM
package org.rut.util.algorithm.support; DUl+Jqn4B
"+7E9m6I
import org.rut.util.algorithm.SortUtil; 1:^Xd~X
Dt(D5A
/** OaY89ko
* @author treeroot +swT MR
* @since 2006-2-2 V>Z4gZp5sc
* @version 1.0 SpU|Q1Q/h
*/ :Z2997@Y
public class MergeSort implements SortUtil.Sort{ lN:;~;z_
3Og}_
/* (non-Javadoc) ] dJ"_
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~&RrlF h
*/ ?<