//Write a class GSMTest to test the GSM class: //Create an array of few instances of the GSM class. //Display the information about the GSMs in the array. //Display the information about the static property IPhone4S. public static void TestGSM() { GSM myPhone = new GSM("Nexus 4", "LG", 769, "Stanislav", new Battery("NXS", 200, 17, BatteryType.LiIon), new Display(4.8, 16000000)); GSM mySecondPhone = new GSM("Asha 210", "Nokia", 59, "Stanislav", new Battery("SH", 180, 10, BatteryType.NiCD), new Display(2.6, 65000)); GSM nexus6 = new GSM("Nexus 6", "Motorola", 1100, "Carlo Gambino", new Battery("Non-removable", 256, 24, BatteryType.LiIon), new Display(5.96, 16000000)); GSM[] phones = new GSM[3] { myPhone, mySecondPhone, nexus6 }; foreach (var p in phones) { Console.WriteLine(new string('*', 70)); Console.WriteLine(p); Console.WriteLine(new string('*', 70)); } GSM.iPhone4s(); }