static void Main(string[] args) { Box Box1 = new Box(); // Declare Box1 of type Box Box Box2 = new Box(); // Declare Box2 of type Box Box Box3 = new Box(); // Declare Box3 of type Box Box Box4 = new Box(); double volume = 0.0; // Store the volume of a box here // 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); //displaying the Boxes using the overloaded ToString(): Console.WriteLine("Box 1: {0}", Box1.ToString()); Console.WriteLine("Box 2: {0}", Box2.ToString()); // 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); // Add two object as follows: Box3 = Box1 + Box2; Console.WriteLine("Box 3: {0}", Box3.ToString()); // volume of box 3 volume = Box3.getVolume(); Console.WriteLine("Volume of Box3 : {0}", volume); //comparing the boxes if (Box1 > Box2) { Console.WriteLine("Box1 is greater than Box2"); } else { Console.WriteLine("Box1 is not greater than Box2"); } if (Box1 < Box2) { Console.WriteLine("Box1 is less than Box2"); } else { Console.WriteLine("Box1 is not less than Box2"); } if (Box1 >= Box2) { Console.WriteLine("Box1 is greater or equal to Box2"); } else { Console.WriteLine("Box1 is not greater or equal to Box2"); } if (Box1 <= Box2) { Console.WriteLine("Box1 is less or equal to Box2"); } else { Console.WriteLine("Box1 is not less or equal to Box2"); } if (Box1 != Box2) { Console.WriteLine("Box1 is not equal to Box2"); } else { Console.WriteLine("Box1 is not greater or equal to Box2"); } Box4 = Box3; if (Box3 == Box4) { Console.WriteLine("Box3 is equal to Box4"); } else { Console.WriteLine("Box3 is not equal to Box4"); } Console.ReadKey(); }