/** Test client. */ public static void main(String[] args) { StdDraw.square(.2, .8, .1); StdDraw.filledSquare(.8, .8, .2); StdDraw.circle(.8, .2, .2); StdDraw.setPenColor(StdDraw.BOOK_RED); StdDraw.setPenRadius(.02); StdDraw.arc(.8, .2, .1, 200, 45); // draw a blue diamond StdDraw.setPenRadius(); StdDraw.setPenColor(StdDraw.BOOK_BLUE); double[] x = {.1, .2, .3, .2}; double[] y = {.2, .3, .2, .1}; StdDraw.filledPolygon(x, y); // text StdDraw.setPenColor(StdDraw.BLACK); StdDraw.text(0.2, 0.5, "black text"); StdDraw.setPenColor(StdDraw.WHITE); StdDraw.text(0.8, 0.8, "white text"); }