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。 +$uQ_ve
插入排序: )%+7"7.
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package org.rut.util.algorithm.support; U/#X,Bi~
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import org.rut.util.algorithm.SortUtil; gAudL)X
/** ^)nIf)9}7
* @author treeroot *'-[J 2
* @since 2006-2-2 We`6# \Z X
* @version 1.0 kC_Kb&Q0
*/ 7&hhKEA
public class InsertSort implements SortUtil.Sort{ EXF|;@-"
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/* (non-Javadoc) rq#\x{l
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h@2YQgw`
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public void sort(int[] data) { 1 u~Xk?
int temp; c{"qrwLA
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ;RW0Dn)Q
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冒泡排序: TpGnSD
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package org.rut.util.algorithm.support; q/h, jM
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import org.rut.util.algorithm.SortUtil; HhZ>/5'(
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/** ==Ah& ){4^
* @author treeroot t"$#KP<
* @since 2006-2-2 ysH'X95
* @version 1.0 MqAN~<l [
*/ 'PvOOhm,
public class BubbleSort implements SortUtil.Sort{ Mp3nR5@d$
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/* (non-Javadoc) Wx` $hvdq
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Ln$= 8x^T
*/ Z]SUr`Z
public void sort(int[] data) { m4on<5s/
int temp; -NPX;e$<
for(int i=0;i for(int j=data.length-1;j>i;j--){ ="('
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if(data[j] SortUtil.swap(data,j,j-1); GK`U<.[c
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} vnx+1T
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选择排序: *5KDu$'(e
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package org.rut.util.algorithm.support; 'j9x(T1M1
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import org.rut.util.algorithm.SortUtil; "=Cjm`9~j
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/** &a'mh
* @author treeroot j"
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* @since 2006-2-2 0TqIRUz "C
* @version 1.0 em9nuXG
*/ cB6LJ}R
public class SelectionSort implements SortUtil.Sort { $EnBigb!
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/* XI>HC'.0
* (non-Javadoc) $}JWJ\-]
* Y~B-dx'V
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d$HPpi1LL
*/ ATF>"Ux
public void sort(int[] data) { w\1K.j=>|N
int temp; LO;6g~(1
for (int i = 0; i < data.length; i++) { xz-?sD/xe
int lowIndex = i; Sg<
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for (int j = data.length - 1; j > i; j--) { ^4C
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if (data[j] < data[lowIndex]) { *o=[p2d"X
lowIndex = j; &9EcgazV
} 2-%9k)KH
} wW,
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SortUtil.swap(data,i,lowIndex); tfdb9#&?
} 48)D%867.;
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Shell排序: 1b<[/g9
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package org.rut.util.algorithm.support; b/d1(B@
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import org.rut.util.algorithm.SortUtil; -#Jp@6'k%
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/** 'F^1)Ga$
* @author treeroot =C-
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* @since 2006-2-2 0D/7X9xg9+
* @version 1.0 g~XR#vl$
*/ |qf ef&
public class ShellSort implements SortUtil.Sort{ GK[9Cm"v
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/* (non-Javadoc) hm0MO,i"
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~{ucr#]C
*/ C$d b)5-
public void sort(int[] data) { 1 fTf+P
for(int i=data.length/2;i>2;i/=2){ ;NF:98
for(int j=0;j insertSort(data,j,i); !8|?0>3)
} K?Jo"oy7
} `(xzCRX
insertSort(data,0,1); ]VaMulb4
} )T@?.J`
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/** sn8l3h)
* @param data GC[Ot~*_
* @param j SM4'3d&mf
* @param i fW$1f5g"
*/ K.Y.K$NjP{
private void insertSort(int[] data, int start, int inc) { ]4B&8n!
int temp; mM'uRhO+
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); mZ g'
} i.gagb
} 'u9y\vUy
} 9?uU%9r5P
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} y;fnC5Q
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快速排序: M63t4; 0A
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package org.rut.util.algorithm.support; -0+h&CO
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import org.rut.util.algorithm.SortUtil; ^sF(IV[>
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/** l4YTR4D
* @author treeroot }"STc&1
* @since 2006-2-2 Qx8O&C?Ti
* @version 1.0 H-3*},9
*/ l)f 2T@bHl
public class QuickSort implements SortUtil.Sort{ bZ}T;!U?I
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/* (non-Javadoc) ~&D5RfK5f
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) B.}j1Bb
*/ 2LS91
public void sort(int[] data) { x,c\q$8yH
quickSort(data,0,data.length-1); _opB,,G
} $49;\pBZl
private void quickSort(int[] data,int i,int j){ #Eqx Eo;
int pivotIndex=(i+j)/2; XdE|7=+s
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SortUtil.swap(data,pivotIndex,j); SP4(yJy&
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int k=partition(data,i-1,j,data[j]); J
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SortUtil.swap(data,k,j); u179!
if((k-i)>1) quickSort(data,i,k-1); nq\~`vH|Gd
if((j-k)>1) quickSort(data,k+1,j); rxOvYF
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} jpZ 7p;
/** X.AE>fx*h
* @param data hLaQ[9
* @param i F#z1 sl'
* @param j Fnuheb'&m
* @return #'I<q
*/ >vDi,qmZ
private int partition(int[] data, int l, int r,int pivot) { >0cg
do{ ]Aj5 K
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ITZ}$=
SortUtil.swap(data,l,r); {5(M
} }^`5$HEi
while(l SortUtil.swap(data,l,r); EJ(z]M`f
return l; NW`Mc&
} REPI>-|
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改进后的快速排序: a``Q}.ST
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package org.rut.util.algorithm.support; VP^{-mDph
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import org.rut.util.algorithm.SortUtil; &H%z1Lp
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/** J"fv5{
* @author treeroot o[g]Va*8
* @since 2006-2-2 ue -a/a
* @version 1.0 G*g*+D[HM
*/ WyUa3$[gO
public class ImprovedQuickSort implements SortUtil.Sort { &