import java.awt.Graphics;
import java.awt.image.BufferedImage;
import javax.swing.JPanel;

public class Plansza extends JPanel {

	private BufferedImage klocki;
	private final int blockSize=30;
	private final int boardWidth=10;
	private final int boardHeight=20;
	private int[][] board = new int[boardWidth][boardHeight];



public void paintComponent(Graphics g) {
	super.paintComponent(g);
	for(int i=0; i<boardHeight; i++) {
		g.drawLine(0, i*blockSize, boardWidth*blockSize, i*blockSize);
}
	for(int j=0;j<boardWidth;j++) {
		g.drawLine(j*blockSize, 0, j*blockSize, boardHeight*blockSize);
	}
}
}