static void Main(string[] args) { Box Box1 = new Box(); // Declare Box1 of type Box Box Box2 = new Box(6.0, 5.4, 4.4); // Declare Box2 of type Box Box Box3 = new Box(7.5, 2.2, 4.4, "red"); double volume; // box 1 specification Box1.setLength(6.0); Box1.setBreadth(7.0); Box1.setHeight(5.0); //// box 2 specification //Box2.setLength(12.0); //Box2.setBreadth(13.0); //Box2.setHeight(10.0); // volume of box 1 volume = Box1.getVolume(); Console.WriteLine("Volume of Box1 : {0}", volume); // volume of box 2 volume = Box2.getVolume(); Console.WriteLine("Volume of Box2 : {0}", volume); // volume of box 3 volume = Box3.getVolume(); Console.WriteLine("Volume of Box3 : {0}", volume); // Box 4 Box Box4 = new Box(10, 20, 30); Console.WriteLine("Volume of Box4: {0}", Box4.getVolume()); Console.ReadKey(); }