namespace DongVat { abstract class DongVat { protected String ten; protected float trongluong; protected int sochan; protected String mausac; abstract public float DiChuyen(); abstract public float AnGi(); abstract public String Ten { get; set; } public DongVat() { ten = ""; trongluong = 0; sochan = 0; mausac = ""; } public DongVat(String name, float weight, int numberOfFoot, String bodyColor) { ten = name; trongluong = weight; sochan = numberOfFoot; mausac = bodyColor; } public override string ToString() { return ten + ";" + trongluong + "kg;" + sochan + "chan;mau than:" + mausac; } } abstract class Thu : DongVat { public Thu() : base() { } public Thu(String name, float weight, int numberOfFoot, String bodyColor) : base(name, weight, numberOfFoot, bodyColor) { } abstract public String LoaiBanChan(); abstract public void NoiSong(); } class ThuAnThit : Thu { public String cachSanMoi; public ThuAnThit() : base() {} public ThuAnThit(String name, float weight, int numberOfFoot, String bodyColor) : base(name, weight, numberOfFoot, bodyColor) { } public override float DiChuyen() { Console.WriteLine("Chay nhanh"); float tocdochay = 50; //km/h return tocdochay; } public override float AnGi() { Console.WriteLine("An thit"); float khoiluongthucan = 5; //kg/ngay return khoiluongthucan; } public override string Ten { get { return ten + "(thu an thit)"; } set { if (value != "") ten = value; } } public override string LoaiBanChan() { return "Co mong vuot"; } public override void NoiSong() { Console.WriteLine("Trong rung, noi hoang da"); } public void SanMoi() { Console.Write("Cho biet cach san moi cua {0} nay:", this.Ten); this.cachSanMoi = Console.ReadLine(); } public override string ToString() { return "[" + base.ToString() + ";Loai chan:" + LoaiBanChan() + "]"; } } class ThuAnCo : Thu { private bool coSungHayKhong; public ThuAnCo() : base() { } public ThuAnCo(String name, float weight, int numberOfFoot, String bodyColor) : base(name, weight, numberOfFoot, bodyColor) { } public override string LoaiBanChan() { return "Co mong guoc"; } public override void NoiSong() { Console.WriteLine("Trong rung thua, cao nguyen"); } public override float DiChuyen() { Console.WriteLine("Chay rat nhanh"); float tocdochay = 70; //km/h return tocdochay; } public override float AnGi() { Console.WriteLine("An co va la cay"); float khoiluongthucan = 10; //kg/ngay return khoiluongthucan; } public override string Ten { get { return ten + "(thu an co)"; } set { if (value != "") ten = value; } } public override string ToString() { return "[" + base.ToString() + ";Loai chan:" + LoaiBanChan() + "]"; } public bool CoSungHayKhong() { Console.Write("Cho biet {0} co sung hay khong?\n(Nhap 1YES SoKhac-NO):", this.Ten); int yesNO = int.Parse(Console.ReadLine()); if (yesNO == 1) { Console.WriteLine("Con {0} Co Sung.", this.Ten); coSungHayKhong = true; } else { Console.WriteLine("Con {0} Khong Co Sung.", this.Ten); coSungHayKhong = false; } return false; } } class Chim : DongVat { private bool coBietHotKhong; public Chim() : base() { } public Chim(String name, float weight, int numberOfFoot, String bodyColor) : base(name, weight, numberOfFoot, bodyColor) { } public override float DiChuyen() { Console.WriteLine("Bay, chay hoac leo treo"); float tocdodichuyen = 65; //km/h return tocdodichuyen; } public override float AnGi() { Console.WriteLine("An hat, qua, sau bo"); float khoiluongthucan = 0.2f; //kg/ngay return khoiluongthucan; } public override string Ten { get { return ten + "(chim)"; } set { if (value != "") ten = value; } } public override string ToString() { return "[" + base.ToString() + "]"; } public bool BietHotKhong() { Console.Write("Cho biet {0} co biet hot hay khong?\n(Nhap 1YES SoKhac-NO):", this.Ten); int yesNO = int.Parse(Console.ReadLine()); if (yesNO == 1) { Console.WriteLine("Con {0} biet hot.", this.Ten); coBietHotKhong = true; } else { Console.WriteLine("Con {0} khong biet hot.", this.Ten); coBietHotKhong = false; } return false; } } class BoSat : DongVat { private bool coChanHayKhong; private bool thanCoVayHayKhong; public BoSat() : base() { } public BoSat(String name, float weight, int numberOfFoot, String bodyColor) : base(name, weight, numberOfFoot, bodyColor) { } public override float DiChuyen() { Console.WriteLine("Truon, bo, leo treo"); float tocdodichuyen = 10; //km/h return tocdodichuyen; } public override float AnGi() { Console.WriteLine("An sau bo, thu nho hon"); float khoiluongthucan = 0.3f; //kg/ngay return khoiluongthucan; } public override string Ten { get { return ten + "(bo sat)"; } set { if (value != "") ten = value; } } public override string ToString() { return "[" + base.ToString() + "]"; } public bool ThanCoVayHayKhong() { Console.Write("Cho biet than cua {0} co vay hay khong?\n(Nhap 1-YES SoKhac-NO):", this.Ten); int yesNO = int.Parse(Console.ReadLine()); if (yesNO == 1) { Console.WriteLine("Con {0} than co vay.", this.Ten); thanCoVayHayKhong = true; } else { Console.WriteLine("Con {0} than khong co vay.", this.Ten); thanCoVayHayKhong = false; } return false; } public bool CoChanHayKhong() { Console.Write("Cho biet {0} co chan hay khong?\n(Nhap 1YES SoKhac-NO):", this.Ten); int yesNO = int.Parse(Console.ReadLine()); if (yesNO == 1) { Console.WriteLine("Con {0} co chan.", this.Ten); coChanHayKhong = true; } else { Console.WriteLine("Con {0} khong co chan.", this.Ten); coChanHayKhong = false; } return false; } } class Program { static void Main(string[] args) { DongVat dv; //dv = new DongVat(); //bao loi tai day vi DongVat la abstract class //Thu d = new Thu(); //bao loi tai day vi Thu la lop abstract class ThuAnThit dv1 = new ThuAnThit("Cop", 100, 4, "Vang Den"); Console.WriteLine(dv1); float khoiluongthucan = dv1.AnGi(); Console.WriteLine("Mot {0} an het {1} kg thuc an.", dv1.Ten, khoiluongthucan); float tocdodichuyen = dv1.DiChuyen(); Console.WriteLine("Toc di chuyen cua {0} la {1} km/h", dv1.Ten, tocdodichuyen); dv1.SanMoi(); Console.WriteLine(" "); ThuAnCo dv2 = new ThuAnCo("Nai", 120, 4, "Vang Sao"); Console.WriteLine(dv2); khoiluongthucan = dv2.AnGi(); Console.WriteLine("Mot {0} an het {1} kg thuc an.", dv2.Ten, khoiluongthucan); tocdodichuyen = dv2.DiChuyen(); Console.WriteLine("Toc di chuyen cua {0} la {1} km/h", dv2.Ten, tocdodichuyen); dv2.CoSungHayKhong(); Console.WriteLine(" "); Chim chim1 = new Chim("Ket", 0.5f, 2, "Xanh La"); Console.WriteLine(chim1); khoiluongthucan = chim1.AnGi(); Console.WriteLine("Mot {0} an het {1} kg thuc an.", chim1.Ten, khoiluongthucan); tocdodichuyen = chim1.DiChuyen(); Console.WriteLine("Toc di chuyen cua {0} la {1} km/h", chim1.Ten, tocdodichuyen); chim1.BietHotKhong(); Console.WriteLine(" "); BoSat bosat1 = new BoSat("Ran", 1.0f, 0, "Den"); Console.WriteLine(bosat1); khoiluongthucan = bosat1.AnGi(); Console.WriteLine("Mot {0} an het {1} kg thuc an.", bosat1.Ten, khoiluongthucan); tocdodichuyen = bosat1.DiChuyen(); Console.WriteLine("Toc di chuyen cua {0} la {1} km/h", bosat1.Ten, tocdodichuyen); bosat1.CoChanHayKhong(); bosat1.ThanCoVayHayKhong(); Console.WriteLine(" "); } } } ... coChanHayKhong = false; } return false; } } class Program { static void Main(string[] args) { DongVat dv; //dv = new DongVat( ); //bao loi tai day vi DongVat la abstract class //Thu d = new Thu(); //bao... Console.WriteLine("Con {0} khong biet hot.", this.Ten); coBietHotKhong = false; } return false; } } class BoSat : DongVat { private bool coChanHayKhong; private bool thanCoVayHayKhong; public BoSat() : base()... bool ThanCoVayHayKhong() { Console.Write("Cho biet than cua {0} co vay hay khong? (Nhap 1-YES SoKhac-NO):", this.Ten); int yesNO = int.Parse(Console.ReadLine()); if (yesNO == 1) { Console.WriteLine("Con