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。 ?]\v%[ho
插入排序: m' eM&1Ba
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package org.rut.util.algorithm.support; >&JS-jFg
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import org.rut.util.algorithm.SortUtil; 2E.D0E Cu
/** r@CbhD
* @author treeroot qhmA)AWG>
* @since 2006-2-2 ${tBu#$-d
* @version 1.0 'DUYf5nF
*/ L-|u=c-6
public class InsertSort implements SortUtil.Sort{ 7-}/{o*,5
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/* (non-Javadoc) ;Ouu+#s
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) loD:4e1
*/ SQ`KR'E
public void sort(int[] data) { J@IF='{
int temp; xgIb4Y%
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); eMjW^-RgE5
} )gG_K$08?
} v{) *P.E
} <%"CQT6g%
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} Aj+0R?9tG
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冒泡排序: #VuiY
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package org.rut.util.algorithm.support; ,ysn7Y{Y
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import org.rut.util.algorithm.SortUtil; 7Pr5`#x#
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/** T*#< p;
* @author treeroot QKhvP>
* @since 2006-2-2 tj: >o#D
* @version 1.0 960rbxKy3
*/ fn.}LeeS>
public class BubbleSort implements SortUtil.Sort{ `llSHsIkXb
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/* (non-Javadoc) b|U3\Fmc
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) b(_PV#@$
*/ 8cbgP$X
public void sort(int[] data) { -P'c0I9z
int temp; eSSv8[u
for(int i=0;i for(int j=data.length-1;j>i;j--){ Bz6Zy)&sAL
if(data[j] SortUtil.swap(data,j,j-1); b$}@0
} G:;(,
} FD^s5>"Y+
} mg
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} %M-B"#OB7
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} .*L_*}tno
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选择排序: 88+J(^y>
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package org.rut.util.algorithm.support; Cc` )P>L
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import org.rut.util.algorithm.SortUtil; Q".AmHn
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/** mTZgvPJ!
* @author treeroot I@YX-@&7
* @since 2006-2-2 oHx =Cg;
* @version 1.0 0^3@>>^
*/ ~'/_q4
public class SelectionSort implements SortUtil.Sort { 1{bsh?zd
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/* _"sFLe{
* (non-Javadoc) !,N),xG}~
* si|b>R&Z
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) cz$q~)I$
*/ d=:&tOCg2
public void sort(int[] data) { 0& ?/TSC
int temp; g}'(V>(
for (int i = 0; i < data.length; i++) { l}mzCIw%
int lowIndex = i; }t.VH:02y
for (int j = data.length - 1; j > i; j--) { WAp#[mW.fx
if (data[j] < data[lowIndex]) { ' Y.s}Duj
lowIndex = j; @W*Zrc1NF
} c>e~$b8
} F anA~
SortUtil.swap(data,i,lowIndex); S-)%#
} \S"YLRn"
} #zc{N"!
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} }&Jml%F4uR
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Shell排序: H He~OxWg
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package org.rut.util.algorithm.support; ZYD3[" ~x
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import org.rut.util.algorithm.SortUtil; w1P8p>vA1
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/** _sp/RU,J-3
* @author treeroot Gv zw=~8
* @since 2006-2-2 '}T6e1#JV
* @version 1.0 $NhKqA`0
*/ ;&G8e*bM2
public class ShellSort implements SortUtil.Sort{ +BE_K_56
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/* (non-Javadoc) \i$WXW]|
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) W]DZ'
*/ IMay`us]:8
public void sort(int[] data) { '74-rL:i
for(int i=data.length/2;i>2;i/=2){ tL~?)2uEN
for(int j=0;j insertSort(data,j,i); JOJ?.H&su
} *,d>(\&[f
} #35@YMF
insertSort(data,0,1); U m9]X@z
} O8%Y .SK
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/** 9K5[a^q|My
* @param data @( H
* @param j =~~Y@eX
* @param i G\:^9!nwY~
*/ QBiLH]qa
private void insertSort(int[] data, int start, int inc) { {^VvL'n
int temp; z`[q$H7?
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ?Em*yc@WD
} {Jl W1;Jc7
} -w:F8k ~
} 7J@D})si
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} *PjW,
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快速排序: KW.QVBuVO#
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package org.rut.util.algorithm.support; 30v 3C7o=
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import org.rut.util.algorithm.SortUtil; vQpR0IEf]e
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/** `Vqpo/
* @author treeroot aGY F\7
* @since 2006-2-2 51k^?5cO
* @version 1.0 4(f4 4' ^
*/ |Skk1#
public class QuickSort implements SortUtil.Sort{ 5B'};AQ
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/* (non-Javadoc) O8N\
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &[hq !v
*/ 1>SCY_Cv
public void sort(int[] data) { ~"+Fp&[9f
quickSort(data,0,data.length-1); *M_Gu{xc
} 1MCHwX3/
private void quickSort(int[] data,int i,int j){ . 787+J?
int pivotIndex=(i+j)/2; FaNH+LPe
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SortUtil.swap(data,pivotIndex,j); \e/'d~F
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int k=partition(data,i-1,j,data[j]); t$z
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SortUtil.swap(data,k,j); D$RQD{*
if((k-i)>1) quickSort(data,i,k-1); 9
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if((j-k)>1) quickSort(data,k+1,j); idf~"a
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} !v2D 18(
/** q.OkZI0n
* @param data Et=N`k_gO
* @param i @i9T),@
* @param j 5]&vs!wH
* @return pOn>m1|
*/ .1.Bf26}d
private int partition(int[] data, int l, int r,int pivot) { VR/>V7*7@
do{ J['paHSF
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); &\$l%icuo
SortUtil.swap(data,l,r); =yfLqU
} %jK-}0Tu
while(l SortUtil.swap(data,l,r); Mlp[xk|
return l; ' [fo
} VR>;{>~
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} p*rBT,'
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改进后的快速排序: AWP CJmr
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package org.rut.util.algorithm.support; s fxQ
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import org.rut.util.algorithm.SortUtil; ;K:)R_H
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/** f!~gfnn
* @author treeroot i51~/
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* @since 2006-2-2 &P%3'c}G
* @version 1.0 vv
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*/ Ch`XwLY9
public class ImprovedQuickSort implements SortUtil.Sort { ;(Q4x"?I
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private static int MAX_STACK_SIZE=4096; 5A:mu+Iz6H
private static int THRESHOLD=10; 8VJUaL@
/* (non-Javadoc) xV'\2n=1T
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) vMXS%Q
*/ }Lx?RU+@=
public void sort(int[] data) { ;%Jw9G\h
int[] stack=new int[MAX_STACK_SIZE]; |\j'Z0
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int top=-1; ) =<,$|g
int pivot; w<