import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Toolkit;

import javax.swing.*;


public class Kreski5 extends JFrame {
	MojKomponent komponent;
	int n=5;
	int m=7;
	class MojKomponent extends JComponent{

		@Override
		protected void paintComponent(Graphics g) {
			int w=getWidth();
			int h=getHeight();
			g.drawRect(w/6, h/6, w*2/3, h*2/3); // Tu jest narysowany prostokat!
			g.drawLine(w/6, h*5/6, w/2, h/6); // Tu linia z lewego do gory - srodek!
			g.drawLine(w/2, h/6, w*5/6, h*5/6); // Tu linia z prawego do gory - srodek!

			//Tu jest wnetrze prostokata begin!
			for(int i=0;i<=n;i++){
				g.drawLine(w/6, h/6, w/6+w/3*i/n, h*5/6-h*2/3*i/n); //lewa
				g.drawLine(w/6+w/3*i/n, h*5/6-h*2/3*i/n, w*5/6-w/3*i/n, h*5/6-h*2/3*i/n); //srodek
				g.drawLine(w*5/6-w/3*i/n, h*5/6-h*2/3*i/n, w*5/6-w/3*i/n, h/6);	//prawa
			}
			//Tu jest wnetrze prostokata end!



			super.paintComponent(g);
		}


	}
	public Kreski5(String string) {
		super(string);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		Toolkit kit=Toolkit.getDefaultToolkit();
		Dimension d=kit.getScreenSize();
		setBounds(d.width/4, d.height/4, d.width/2, d.height/2);
		add(komponent=new MojKomponent());
		JPanel panel=new JPanel(new BorderLayout()); //dodaj panel
		add(panel,BorderLayout.SOUTH); //na poludniu
		JPanel panelW= new JPanel(new BorderLayout());
		panel.add(panelW, BorderLayout.WEST);

		setVisible(true);
	}

	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {

			@Override
			public void run() {
				new Kreski5("tytulik");
			}
		});
	}

}