//package Singlton;

// Singleton pattern -- primer

// "Singleton"

class Singleton
{
	// Polja
	private static Singleton instance;

	// Konstruktor
	protected Singleton() {}

	// Metode
	public static Singleton Instance()
	{
		// Koristi se tzv. "Lazy initialization"
		if( instance == null )
			instance = new Singleton();

		return instance;
	}
}

public class Ilustracija
{
	public static void main( String args[] )
	{
		// Konstruktor je protected -- ne moze se koristiti new
		Singleton s1 = Singleton.Instance();
		Singleton s2 = Singleton.Instance();

		if( s1 == s2 )
			System.out.println( "Iste instance" );
	}
}