package zadatak09;

import java.awt.Color;
import javax.swing.JFrame;

public class Zadatak09 extends JFrame {


    public static void main(String[] args) {
        new Zadatak09();
    }

        public Zadatak09() {

            setSize(500, 500);

            setLocationRelativeTo(null);

            getContentPane().setBackground(Color.GRAY);

            setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

            setVisible(true);



    }

}