微软面试100题-72

package com.algo.ms;

public class Singleton72 {
private static Singleton72 instance;
private Singleton72(){

}
public static Singleton72 newInstance(){
if (instance == null)
instance = new Singleton72();
return instance;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
//		Singleton72 sing = new Singleton72();
}

}