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public class Singleton {   
private static Singleton obj = new Singleton();   
public static int counter1 ;   
public static int counter2 = 0;   
private Singleton()   
{   
counter1++;   
counter2++;   
}   
public static Singleton getInstance()   
{   
return obj;   
}   
public static void main(String[] args) {   
Singleton.getInstance();   
System.out.println("obj.counter1=="+counter1);   
System.out.println("obj.counter2=="+counter2);   
}   
  
}   
  
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private static Singleton obj = new Singleton();  
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private Singleton()   
{   
counter1++;   
counter2++;   
}  
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public static int counter1 ;   
public static int counter2 = 0;  
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package com.flxx.docUrl;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.List;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.input.SAXBuilder;
import org.jdom.output.Format;
import org.jd ......

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package com.xiaobian;   
  
public class BubbleSort {   
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    public static void bubbleSort(int[] data){   
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package org.rut.util.algorithm.support;
 
import org.rut.util.algorithm.SortUtil;
/**
 * @author treeroot
 * @since 2006-2-2
 * @version 1.0
 */
public class InsertSort implements SortUtil.Sort{
 
    /* (non-Javadoc)
     * ......
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