package src.ex8; public class TestPolyLine { public static void main(String[] args) { PolyLine l1 = new PolyLine(); System.out.println(l1); // empty l1.appendPoint(new Point(1, 1)); l1.appendPoint(2, 2); l1.appendPoint(3, 3); System.out.println(l1); // (1,1)(2,2)(3,3) } }