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。 lk~dgky@
插入排序: _we3jzMW
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package org.rut.util.algorithm.support; R>` ih&,)
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import org.rut.util.algorithm.SortUtil; &LwJ'h+nd
/** P$F#,Cn
* @author treeroot Hq79/wKj
* @since 2006-2-2 h#;?9DP
* @version 1.0
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*/ i"KL;t[1
public class InsertSort implements SortUtil.Sort{ 9PWm@
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/* (non-Javadoc) H2s*s[T
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ]+FX$+H/A0
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public void sort(int[] data) { %oMWcgsdJi
int temp; -.^= Z!=M
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); m*OLoZVy
} ;cnnqT6
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冒泡排序: b"`ru~]
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package org.rut.util.algorithm.support; {/th`#o4b
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import org.rut.util.algorithm.SortUtil; U#OWUZ
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/** O-y6!u$6&
* @author treeroot F]/L!
* @since 2006-2-2 aslU`#"
* @version 1.0 /h1dm,
*/ Q:'qw#P/C
public class BubbleSort implements SortUtil.Sort{ )er?*^9Z
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/* (non-Javadoc) 4Z<]4:o
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) OHx,*}N
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public void sort(int[] data) { 9;>@"e21R
int temp;
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for(int i=0;i for(int j=data.length-1;j>i;j--){ ]}UeuF\
if(data[j] SortUtil.swap(data,j,j-1); Gp?ToS2^d
} i*mZi4URN
} sBeP;ox
} mf
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选择排序: ,yB?~
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package org.rut.util.algorithm.support; y^EF<<\
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import org.rut.util.algorithm.SortUtil; kR`6s
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/** X~IRpzC
* @author treeroot IS5.i95m
* @since 2006-2-2 P;HVL flu
* @version 1.0 k"3Z@Px:
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public class SelectionSort implements SortUtil.Sort { <Y}"D Yt
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/* Zh@4_Z9n!
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) R"9oMaY
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public void sort(int[] data) { 6,V.j>z
int temp; Hm.&f2|(
for (int i = 0; i < data.length; i++) { s&_IWala
int lowIndex = i; N>cp>&jV
for (int j = data.length - 1; j > i; j--) { @Le ^- v4
if (data[j] < data[lowIndex]) { Sug~FV?k$e
lowIndex = j; (:j+[3Ht
} [`Qp;_K?t
} ;*j6d3E
SortUtil.swap(data,i,lowIndex); @]y{M;
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Shell排序: w|n?m
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package org.rut.util.algorithm.support; tx|"v|&e2
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import org.rut.util.algorithm.SortUtil; )@lo ';\
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/** c@ZkX]g
* @author treeroot LF-+5`
* @since 2006-2-2 +hKPOFa'
* @version 1.0 [ ;3EzZL
*/ K9z_=c+
public class ShellSort implements SortUtil.Sort{ *C:q _/
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/* (non-Javadoc) ~A:;?A'.
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) CgT QGJ}-
*/ 3/SqXu
public void sort(int[] data) { 8 *(W |J
for(int i=data.length/2;i>2;i/=2){ i$LV44
for(int j=0;j insertSort(data,j,i); U0|j^.)
} 2sd=G'7!
} ReGO9}
insertSort(data,0,1); loqS?b C]
} zk^7gx3x
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/** ywsz"/=@
* @param data Vo9)KxR
* @param j ,9l!fT?iH
* @param i k f K"i
*/ Z5^,!6
private void insertSort(int[] data, int start, int inc) { @1qUC"Mg
int temp; $GfxMt
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 1
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快速排序: #(Yb
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package org.rut.util.algorithm.support;
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import org.rut.util.algorithm.SortUtil; ;7og
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/** j~j
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* @author treeroot V9 t:JY
* @since 2006-2-2 ojs/yjvx
* @version 1.0 ~|d?o5W
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public class QuickSort implements SortUtil.Sort{ PT*@#:MA
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/* (non-Javadoc) rN!9&
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) UtW3KvJ#=
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public void sort(int[] data) { Fe>#}-`
quickSort(data,0,data.length-1); O!cO/]<
} "lj:bxM2C
private void quickSort(int[] data,int i,int j){ =81Xt1,
int pivotIndex=(i+j)/2; 7&U+f:-w
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SortUtil.swap(data,pivotIndex,j); L$07u{Q
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int k=partition(data,i-1,j,data[j]); .;sPG
SortUtil.swap(data,k,j); hdDI%3vk3
if((k-i)>1) quickSort(data,i,k-1); {}gk4xr
if((j-k)>1) quickSort(data,k+1,j); :QY 9p T
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}
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/** k`zK
* @param data ON=ley
* @param i y&|{x "
* @param j 2F)OyE
* @return /|^^v DL
*/ Yy;1N{dbT
private int partition(int[] data, int l, int r,int pivot) { )W7H{#
do{ 4>eg@s N
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 6*oTT(0<p
SortUtil.swap(data,l,r); Z
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} H0Xda.Y(
while(l SortUtil.swap(data,l,r); VFp)`+8
return l; [9Hm][|Ph
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改进后的快速排序: V^H47O;VC
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package org.rut.util.algorithm.support; <