import java.io.*;

public class Singleton
{
	private static int x;
	private static String y;
	private static Singleton singleton;
	
	public static Singleton getInstance()
	{
		if (singleton == null)
		{
			singleton = new Singleton();
		}
		
		return singleton;
	}
	
	public void show()
	{
		System.out.println(x);
		System.out.println(y);		
	}

	public void set(int newX, String newY)
	{
		x = newX;
		y = newY;
	}
	
	private Singleton()
	{
	}
	
}