I want to make external .java files be able to use functions like ellipse, rect, and other functions which can work with the canvas.

The ellipse command throws an error.  :(

public class hi
{
  private static int p = 5;

  public static int getP()
  {
    return p;
  }

  public static int addToP()
  {
    ellipse(40,40,40,40);
    p++;
    return p;
  }

}