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。 qItj`F)d
插入排序: #J1a `}x
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package org.rut.util.algorithm.support; OG}0{?
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import org.rut.util.algorithm.SortUtil; >/evL
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/** ~Dgui/r9J
* @author treeroot Sh{odrMj*
* @since 2006-2-2 udW,
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* @version 1.0 =p^*y-z
*/ 2nOQ48haT
public class InsertSort implements SortUtil.Sort{ Rw Y)
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/* (non-Javadoc) |V:k8Ab
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h*d&2>"0m?
*/ 0(
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public void sort(int[] data) { [,G]#<G?q
int temp; `Mp]iD{
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 8 rnr>Ee@
} "f5u2=7 }
} VZw( "a*TB
} >;0z-;k6
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} 9u"im+=:
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冒泡排序: Z`<
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package org.rut.util.algorithm.support; 21w<8:Vg
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import org.rut.util.algorithm.SortUtil; A}[Lk#|n
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/** Q7`zrCh
* @author treeroot .8fOc.h8h
* @since 2006-2-2 W6~<7
* @version 1.0 ou96
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*/ Gz^g!N[
public class BubbleSort implements SortUtil.Sort{ 24|:VxO
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/* (non-Javadoc) wBCnP
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f)N67z6
*/ @CWfhc-Ub
public void sort(int[] data) { 'p Z~3q
int temp; ~hP[[?
for(int i=0;i for(int j=data.length-1;j>i;j--){ <}.)kg${O
if(data[j] SortUtil.swap(data,j,j-1); dk;Ed
} AGOK%[[Ws
} }2DeqY
} b]CJf8'u
} M`iJ6L
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} vWzNsWPK"{
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选择排序: zgVplp
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package org.rut.util.algorithm.support; uodO^5"-
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import org.rut.util.algorithm.SortUtil; [NaU\;w\
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/** <1_?.gSi
* @author treeroot Fv e,&~
* @since 2006-2-2 QDxL y aL
* @version 1.0 d v@6wp:
*/ 3/]J
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public class SelectionSort implements SortUtil.Sort { !A!zG)Ue<
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/* v }P~g
* (non-Javadoc) ;#f_e;
* j:U>V7Kn3~
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h_y<A@[P}
*/ ChGwG.-%L
public void sort(int[] data) { h-!(O^M
int temp; eYR/kZ%<
for (int i = 0; i < data.length; i++) { C:gE
int lowIndex = i; 1&wZJP=
for (int j = data.length - 1; j > i; j--) { t41\nTZr
if (data[j] < data[lowIndex]) { ki}Uw#
lowIndex = j; G|Q}.v
} F-_RL-hbN%
} Rp. @
SortUtil.swap(data,i,lowIndex); Ia>qVM0
} ^JYR^X>_
} t}NxD`8
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} |(y6O5Y.
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Shell排序: nb?bx{M
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package org.rut.util.algorithm.support; 1~Pht:,t
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import org.rut.util.algorithm.SortUtil; ls#O0
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/** .%~
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* @author treeroot a ,W5T8
* @since 2006-2-2 "@`M>)*o
* @version 1.0 0ZPPt(7
*/ *4A.R&Vu
public class ShellSort implements SortUtil.Sort{ `Gsh<.w!7
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/* (non-Javadoc) \gIdg:"02
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) US>
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*/ Uc7X)
public void sort(int[] data) { x1A^QIuxO
for(int i=data.length/2;i>2;i/=2){ AO^F6Y/
for(int j=0;j insertSort(data,j,i); Y^3tk}yru
} X3a:*1N
} b/ZX}<s(1=
insertSort(data,0,1); :(I)+;M}P
} @JN%P}4)
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/** 4Ag+
* @param data U.>n]/&
* @param j ,9W 0fm\t
* @param i vi lNl|
*/ ,wZ[Y
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private void insertSort(int[] data, int start, int inc) { xB9^DURr\
int temp; 7g(rJGjtg
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 5O)Z}
} i-niRu<
} ;'p0"\SV
} 73N%_8DH
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} ^Ko0zz|R/
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快速排序: |fRajuA;
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package org.rut.util.algorithm.support; bh+R9~
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import org.rut.util.algorithm.SortUtil; '7_'s1
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/** NK"y@)%0
* @author treeroot QRt(?96
* @since 2006-2-2 }14.u&4
* @version 1.0 ]G|@F
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*/ >E)UmO{S
public class QuickSort implements SortUtil.Sort{ I<[(hPQUf
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/* (non-Javadoc) B=n]N+
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 14zo0ANM
*/ fI}-?@
public void sort(int[] data) { ;{HxY98Q
quickSort(data,0,data.length-1); 5|H?L@_9
} vz@QGgQ9~2
private void quickSort(int[] data,int i,int j){ ~Bu~?ZJmd
int pivotIndex=(i+j)/2; NK,)"WE
file://swap O\G%rp L$w
SortUtil.swap(data,pivotIndex,j); S:^Q(w7
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int k=partition(data,i-1,j,data[j]); >@ EQarD
SortUtil.swap(data,k,j); _Zb_9&
if((k-i)>1) quickSort(data,i,k-1); '| Ag,x[
if((j-k)>1) quickSort(data,k+1,j); sy>P n
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} q8[Nr3.
/** xES+m/?KlZ
* @param data 6EPC$*Xp!
* @param i drb_GT
* @param j #uey1I@"9
* @return &,KxtlR![
*/ uy`U1>
private int partition(int[] data, int l, int r,int pivot) { '# (lq 5
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do{ ?$r+#'asd(
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 3&2,[G04
SortUtil.swap(data,l,r); U][.ioc
} V(w[`^I>~
while(l SortUtil.swap(data,l,r); ^P{'l^CVX
return l; hXMC!~Th
} EaP#~x
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} %81tVhg
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改进后的快速排序: qTffh{q V
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package org.rut.util.algorithm.support; ]FFU,me2
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import org.rut.util.algorithm.SortUtil; 2<