import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;


public class JWhiteBoard extends JPanel {

    private int rows = 10;
    private int cols = 10;

    public void paintComponent(Graphics g) {
        for (int i=0;i<cols;i++){
            for (int j=0;j<rows;j++){
                g.drawOval(i*10,j*10,10,10);
            }
        }
    }

    public void setRows(int i) {
        rows = i;
    }

    public void setCols(int i) {
        cols = i;
    }



}