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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();  
2¡¢ËùÒÔ³öÏÖÁ˶ÔÖжÔÏóµÄ´´½¨£¬ÓÚÊÇÖ´Ðй¹Ôì·½·¨£º
private Singleton()   
{   
counter1++;   
counter2++;   
}  
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public static int counter1 ;   
public static int counter2 = 0;  
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        System.out.println(Integer.toBinaryString(20));   //Ê®½øÖÆ-->2½øÖÆ  
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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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