public void paint (Graphics g)
{
super.paint(g);

int width = getWidth();
int height = getHeight();
int x2 = width;
int y2 = height;
int xcoord = gridcoord;
int ycoord = gridcoord;
squareX = width/ grid;
squareY = height/grid;


for (int j=-10; j<=grid; j++) // the number of squares on the y axis
{
g.drawLine (xcoord,ycoord, x2,ycoord);
ycoord += squareY ;
}


ycoord = gridcoord;


for (int i=-12; i<=grid; i++) // the number of squares on the x axis
{
g.setColor(Color.black);
g.drawLine (xcoord,ycoord, xcoord,y2);
xcoord = xcoord + squareX;
}
g.setColor(Color.black); // colour each square to this colour
for(int row = 0; row < gridcell.length; row++)
{
for(int col = 0; col < gridcell[row].length; col++)
{
if(gridcell[row][col] == colour)
{
xcoord = gridcoord + col * squareX + 1;
ycoord = gridcoord + row * squareY + 1;
g.fillRect(xcoord, ycoord, squareX - 1, squareY - 1);
}
}

}
}