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。 >jv\Qh
插入排序:
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package org.rut.util.algorithm.support; _$8{;1$T?
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import org.rut.util.algorithm.SortUtil; m#*h{U$
/** ("OAPr\2dw
* @author treeroot vm|!{5l:=y
* @since 2006-2-2 -xz|ayn
* @version 1.0 _r]nJEF5
*/ <>]1Y$^Y
public class InsertSort implements SortUtil.Sort{ 3B;}j/h2
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/* (non-Javadoc) 7RD$=?o O'
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) RE 9nU%!
*/ MA$Xv`6I\
public void sort(int[] data) { Gbn4*<N
int temp; l~rb]6E
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); oKRFd_r +
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冒泡排序: , |l@j%
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package org.rut.util.algorithm.support; #sZIDn J#
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import org.rut.util.algorithm.SortUtil;
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/** {\EOo-&A
* @author treeroot Ssf+b!e]
* @since 2006-2-2 MQJ%He"
* @version 1.0 3 "Yif
*/ 9KyZEH;pY
public class BubbleSort implements SortUtil.Sort{ BRa{\R^I
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/* (non-Javadoc) k1#5nYN.
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ljVIE/iq
*/ =e{.yggE
public void sort(int[] data) { nkRK+~>
int temp; E?cZbn*>`
for(int i=0;i for(int j=data.length-1;j>i;j--){ :Jk33 N4y0
if(data[j] SortUtil.swap(data,j,j-1); 7TpRCq#
} 3{e'YD~hP
} g8l5.Mpx
} @o&Ytd;i
} @cIgxp
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} nv)))I\
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选择排序: !R6ApB4ZI
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package org.rut.util.algorithm.support; ,#d[ad<
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import org.rut.util.algorithm.SortUtil; +ubnx{VC
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/** # $~ oe"
* @author treeroot hVM2/j
* @since 2006-2-2 r|fO7PD
* @version 1.0 5)`h0TK
*/ ('4wXD]C
public class SelectionSort implements SortUtil.Sort { ,9\Snn
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/* 8teJ*sz
* (non-Javadoc) n=o_1M|
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qjAh6Q/E`
*/ *ik/p
public void sort(int[] data) { #tDW!Xv?
int temp; C
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for (int i = 0; i < data.length; i++) { Kt6>L5:94
int lowIndex = i; c`jDW S
for (int j = data.length - 1; j > i; j--) { % O%xpSYr
if (data[j] < data[lowIndex]) { PS@ *qTin
lowIndex = j; Ri @`a
} J633uH}}
} 7W|Zq6pi
SortUtil.swap(data,i,lowIndex); =9$mbn
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Shell排序: :YNp8!?T?
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package org.rut.util.algorithm.support; {/|qjkT&W
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import org.rut.util.algorithm.SortUtil; v{y{sA
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/** {G*OR,HN
* @author treeroot h1f8ktF
* @since 2006-2-2 j?-R]^-5
* @version 1.0 7&+Ys
*/ FN?3XNp.
public class ShellSort implements SortUtil.Sort{ 5I' d PNf
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/* (non-Javadoc) "U8S81'
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^npJUa
*/ 1'O0`Me>#
public void sort(int[] data) { Im)EDTm$
for(int i=data.length/2;i>2;i/=2){
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for(int j=0;j insertSort(data,j,i); Uu'dv#4Iw
} $Q/Ya@o
} :=fvZA WD
insertSort(data,0,1); iM5vrz`n
} hs(W;tR@W
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/** Wi$dZOcSJ
* @param data FjFwvO_.
* @param j .Dw,"VHP
* @param i ~xDw*AC-
*/ c-8!#~M(
private void insertSort(int[] data, int start, int inc) { z<&m*0WYA
int temp; Lh ap4:
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); /!T> b:0
} R#eg^7HfX
} CDdkoajBa
} -^SA8y
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} ,.v7FM^gO
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快速排序: \#6Fm_b]u
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package org.rut.util.algorithm.support; euQ.ArF
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import org.rut.util.algorithm.SortUtil; d,9`<1{9
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/** &y\sL"YL!
* @author treeroot s'u(B]E
* @since 2006-2-2 E\ th%q,mG
* @version 1.0 s 3r=mp{
*/ ^Z}Ob= .G
public class QuickSort implements SortUtil.Sort{ fn}UBzED\
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/* (non-Javadoc) +sZUJ
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) = yXs?y"
*/ c/aup
public void sort(int[] data) { AK-}V4C/A
quickSort(data,0,data.length-1); 2Z/K(J"&J
} KnzsHli,~k
private void quickSort(int[] data,int i,int j){ YQ]\uT>}&
int pivotIndex=(i+j)/2; Q6'nSBi:A_
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SortUtil.swap(data,pivotIndex,j); uaw <
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int k=partition(data,i-1,j,data[j]); 76H!)={
SortUtil.swap(data,k,j); .p&Yr%~
if((k-i)>1) quickSort(data,i,k-1); z"
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if((j-k)>1) quickSort(data,k+1,j); ]Pc^#=(R0
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} ziEz.Wn"
/** kXc25y'blP
* @param data Q0cRH"!:
* @param i Y(6Sp'0
* @param j ..<3%fL3
* @return vkcRm`.
*/ ]}PV"|#K{c
private int partition(int[] data, int l, int r,int pivot) { H0*,8i5I
do{ Ee2c5C!|C
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); RBGX_v?
SortUtil.swap(data,l,r); v:|(8Y
} )qU7`0'8
while(l SortUtil.swap(data,l,r); .$rC0<G[K
return l; ra6o>lI(,
} Vpp&