import javax.swing.*;
import java.awt.Toolkit;
import java.awt.Dimension;

class SlotMachine
{
   public static void main(String[] args)
   {
      JFrame window = new JFrame();
      window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      window.setTitle("Slots!");
      window.setSize(200,200);

      Toolkit toolkit = window.getToolkit();
      Dimension size = toolkit.getScreenSize();

      window.setLocation(size.width/2 - window.getWidth()/2, size.height/2 - window.getHeight()/2);

      JLabel label = new JLabel("Slot Machine v1.0");
      label.setSize(200,200);
      label.setLocation(window.getWidth()/2,window.getHeight()/2);

      window.add(label);
      window.setVisible(true);
   }
}