date0406/Demo.java

class Demo
{
	//static int x=3;
	public static void main(String[] args) 
	{
		//x=5;
		//System.out.println(x);
		//new Person();
		new Gouzao();

	}
}

class Gouzao
{
	
	private Gouzao()
	{
		System.out.println("hello");
	}
	
	
}
/*
class Person
{
	static int x=3;
	Person()
	{
		x=5;
		System.out.println(x);
	}
	
}

class Single
{
	private Single(){};
	private static Single s = new Single();
	public static Single getInstance()
	{
		return s;
	}
}
*/