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。 x"2p5T7*>
插入排序: @@Q4{o
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package org.rut.util.algorithm.support; 6r~9$IM
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import org.rut.util.algorithm.SortUtil; IL@yGuO,
/** !:+U-mb*
* @author treeroot tV++QC7@L
* @since 2006-2-2 k\OZ'dS
* @version 1.0 xg p)G!
*/ uz3cho'
public class InsertSort implements SortUtil.Sort{ x.1=QF{!
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/* (non-Javadoc) i@/% E~ W
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) D4$b-?y
*/ G]B0LUT6c
public void sort(int[] data) { 6C$+D
int temp; &OU.BR>
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ,88B@a
} ihkZs3}
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冒泡排序: `
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package org.rut.util.algorithm.support; {r&r^!K;
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import org.rut.util.algorithm.SortUtil; 2K~v`c*4
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/** lR?1,yLp
* @author treeroot eHx {[J?
* @since 2006-2-2 .UxkTads
* @version 1.0 GUQ3XF\
*/ u9_?c
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public class BubbleSort implements SortUtil.Sort{ hbXm Ist
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/* (non-Javadoc) ",YNphjAn
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qA}l[:F+#
*/ Ds=d~sN u
public void sort(int[] data) { V xN!Ki=
int temp; Ps!
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for(int i=0;i for(int j=data.length-1;j>i;j--){ "P5,p"k:)
if(data[j] SortUtil.swap(data,j,j-1); D[T\_3W
} .yDR2sW
} J;fbE8x
} l2#~
} nJH'^rO!C
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选择排序: |}l/6WHB
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package org.rut.util.algorithm.support; e{:
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import org.rut.util.algorithm.SortUtil; /0L]Pf;
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/** Y(JZP\Tf_N
* @author treeroot 'fb&3
* @since 2006-2-2 j%!xb><
* @version 1.0 NR^Z#BU
*/ d.sn D)X
public class SelectionSort implements SortUtil.Sort { RZvRV?<bR
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/* (Q"s;g
* (non-Javadoc) WAr6Dv,8
* ohPXwp?]
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) voN, u>U
*/ NS4W!o;"
public void sort(int[] data) { T.!.3B$@]
int temp; : 2L-Nf
for (int i = 0; i < data.length; i++) { 7r3EMX\#Qm
int lowIndex = i; <l)I%1T_c
for (int j = data.length - 1; j > i; j--) { "jq F
if (data[j] < data[lowIndex]) { &>@EfW](
lowIndex = j; m]++
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} =rNI&K_<
} &'5j!
SortUtil.swap(data,i,lowIndex); }e1]Ib!
} Oi!uJofW
} ^O5PcV 3Eg
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Shell排序: ^@maF<Jb
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package org.rut.util.algorithm.support; _'r&'s;<z
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import org.rut.util.algorithm.SortUtil; M-f; ,>
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/** }!vJ+
* @author treeroot ,|R\ Z,s
* @since 2006-2-2 !uHVg(}
* @version 1.0 "qY_O/Eg]]
*/ sr$JFMTO11
public class ShellSort implements SortUtil.Sort{ !_1RQ5]^
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/* (non-Javadoc) d>Np; "
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P_c9v/
*/ rcMSso2
public void sort(int[] data) { f,Dj@?3+
for(int i=data.length/2;i>2;i/=2){ z!\)sL/"
for(int j=0;j insertSort(data,j,i); mvW,nM1Y
} #.W<[KZf
} g"v-hTx
insertSort(data,0,1); 3hzKd_
} K<w$
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/** |NWo.j>4-
* @param data }W* q
* @param j lZ }H?n%
* @param i B}p{$g!
*/ }Ias7d?re
private void insertSort(int[] data, int start, int inc) { q6>%1~?
int temp; |lf,3/*jDB
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 6M_,4>
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} k|
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} #ANbhHG
} ~Wj.
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快速排序: eB*0})
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package org.rut.util.algorithm.support; _ye74$#
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import org.rut.util.algorithm.SortUtil; zH+a*R
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/** },G5!3
* @author treeroot gflu!C6
* @since 2006-2-2 LYyOcb[x
* @version 1.0 &,~Oi(SX5
*/ ":N
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public class QuickSort implements SortUtil.Sort{ q'[q]
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/* (non-Javadoc) ?T <2Cl'C
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) u IGeSd5B
*/ dBMr%6tz
public void sort(int[] data) { r5g:#mF"
quickSort(data,0,data.length-1); #Rcb
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} jUCrj'
private void quickSort(int[] data,int i,int j){ aaM76;
int pivotIndex=(i+j)/2; f&
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SortUtil.swap(data,pivotIndex,j); VsM~$
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int k=partition(data,i-1,j,data[j]); ;4ETqi9
SortUtil.swap(data,k,j); m<uBRI*I
if((k-i)>1) quickSort(data,i,k-1); "WE*ED
if((j-k)>1) quickSort(data,k+1,j); fTg^~XmJ
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} hMvLx>q3)
/** KN-)m ta&
* @param data wz=c#}0dB
* @param i $@(+"
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* @param j '6zD`Q
* @return G :JQ_w
*/ I[v6Y^{q
private int partition(int[] data, int l, int r,int pivot) { Ga1(T$|H
do{ lo:{T_ay
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); z->[:)c
SortUtil.swap(data,l,r); ~y.t amNW
} >Kjl>bq
while(l SortUtil.swap(data,l,r); #.^A5`k
return l; s/0S]P]}f
} DYFfq
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} 7dbGUbT
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改进后的快速排序: {WoS&eL
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package org.rut.util.algorithm.support; Ri mz~}+
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