私の兄は、ポリモヒズムの例を示すためにこのコードを書いてくれました。しかし、パラメーターから始めて、すべてがどのように機能するかはよくわかりません。誰かがコードを分析して、すべてがどのように連携し、どのように機能するかについて少し教えてもらえますか?
編集:ここに特定の質問があります:哺乳類.Add(new Cat("白雪姫", 1, 0, "白", "青")); 数字は何をしますか？それらの目的は何ですか? また、コードをどのように操作しますか?
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
List<Mammal> mammals = new List<Mammal>();
mammals.Add(new Cat("Snow white", 1, 0, "White", "blue"));
mammals.Add(new HumanFemale("Krysten", 72, 15, "White", "Blue"));
mammals.Add(new Cat("Larry", 7, 2, "Orange", "Hazel"));
mammals.Add(new Dog("Walt", 3, 5, "Brown", "Hazel"));
mammals.Add(new HumanMale("Ryan", 72, 31, "White", "Blue"));
mammals.Add(new Cat("Blacky", 5, 10, "Black", "Brown"));
foreach (Mammal m in mammals)
{
m.Speak();
m.Walk();
}
Console.ReadKey();
}
} // end of Program class declaration
public abstract class Mammal
{
public Mammal(string name, int heightInInches, int age, string color, string eyeColor)
{
this.Name = name;
this.HeightInInches = heightInInches;
this.Age = age;
this.Color = color;
this.EyeColor = eyeColor;
}
private int _HeightInInches;
private int _Age;
/// <summary>
/// Gets or sets the age (in years).
/// </summary>
public int Age
{
get
{
return _Age;
}
set
{
if (value < 0)
{
throw new Exception("Invalid Age!");
}
_Age = value;
}
}
/// <summary>
/// Gets or sets the height.
/// </summary>
public int HeightInInches
{
get
{
return _HeightInInches;
}
set
{
if (value < 0)
{
throw new Exception("Invalid height!");
}
_HeightInInches = value;
}
}
/// <summary>
/// Gets or sets the name.
/// </summary>
public string Name { get; set; }
/// <summary>
/// Gets or sets the skin or fur color.
/// </summary>
public string Color { get; set; }
/// <summary>
/// Gets or sets the eye color.
/// </summary>
public string EyeColor { get; set; }
/// <summary>
/// Causes the mammal to speak.
/// </summary>
public virtual void Speak()
{
Console.WriteLine("The mammal spoke.");
}
/// <summary>
/// Causes the mammal to walk.
/// </summary>
public virtual void Walk()
{
Console.WriteLine("The mammal is walking.");
}
} // end of Mammal class declaration
public class Dog : Mammal
{
public Dog(string name, int heightInInches, int age, string color, string eyeColor)
: base (name, heightInInches, age, color, eyeColor)
{
}
public override void Speak()
{
Console.WriteLine("{0} the Dog says: 'Ruff!'", this.Name);
}
public override void Walk()
{
if (this.Age == 0)
{
Console.WriteLine("{0}, the {1} newborn puppy was just born and is too little to walk yet!", this.Name, this.Color);
}
else if (Age > 0 && Age <= 5)
{
Console.WriteLine("{0}, the {1} puppy is {2} years old and is running around like a hyper puppy, chewing up all the furniture. Oh nooo!", this.Name, this.Color, this.Age);
}
else if (Age > 5 && Age <= 10)
{
Console.WriteLine("{0}, the {1} dog is {2} years old and walks conservatively", this.Name, this.Color, this.Age);
}
else if (Age > 10)
{
Console.WriteLine("{0}, the {1} dog is {2} years old and walks very slowly, and has arthiritus in the joints.", this.Name, this.Color, this.Age);
}
}
} // end of Dog class
public class Cat : Mammal
{
public Cat(string name, int heightInInches, int age, string color, string eyeColor)
: base(name, heightInInches, age, color, eyeColor)
{
}
public override void Speak()
{
Console.WriteLine("{0} the Cat says: 'Meow!'", this.Name);
}
public override void Walk()
{
if (this.Age == 0)
{
Console.WriteLine("{0}, the {1} newborn Kitten was just born and is too little to walk yet!", this.Name, this.Color);
}
else if (Age > 0 && Age <= 5)
{
Console.WriteLine("{0}, the {1} Kitten is {2} years old and is running around like a hyper kitten!", this.Name, this.Color, this.Age);
}
else if (Age > 5 && Age <= 10)
{
Console.WriteLine("{0}, the {1} cat is {2} years old and walks conservatively", this.Name, this.Color, this.Age);
}
else if (Age > 10)
{
Console.WriteLine("{0}, the {1} cat is {2} years old and walks very slowly", this.Name, this.Color, this.Age);
}
}
} // end of Cat class
public abstract class Human : Mammal
{
public Human(string name, int heightInInches, int age, string color, string eyeColor)
: base(name, heightInInches, age, color, eyeColor)
{
}
public override void Walk()
{
if (this.Age == 0)
{
Console.WriteLine("{0}, the {1} newborn baby was just born and is too little to walk yet!", this.Name, this.Color);
}
else if (Age > 0 && Age <= 2)
{
Console.WriteLine("{0}, the {1} toddler is {2} years old and is crawling around!", this.Name, this.Color, this.Age);
}
else if (Age > 2 && Age <= 5)
{
Console.WriteLine("{0}, the {1} kid is {2} years old and is walking around!", this.Name, this.Color, this.Age);
}
else if (Age > 5 && Age <= 12)
{
Console.WriteLine("{0}, the {1} kid is {2} years old and walks briskly", this.Name, this.Color, this.Age);
}
else if (Age > 12 && Age <= 19)
{
Console.WriteLine("{0}, the {1} audlt is {2} years old and walks briskly", this.Name, this.Color, this.Age);
}
else if (Age > 20 && Age <= 60)
{
Console.WriteLine("{0}, the {1} adult is {2} years old and walks conservatively", this.Name, this.Color, this.Age);
}
else if (Age > 60)
{
Console.WriteLine("{0}, the {1} old person is {2} years old and walks with a cane", this.Name, this.Color, this.Age);
}
}
public override void Speak()
{
Console.WriteLine("The human spoke");
}
} // end of Human class
public class HumanMale : Human
{
public HumanMale(string name, int heightInInches, int age, string color, string eyeColor)
: base(name, heightInInches, age, color, eyeColor)
{
}
public override void Speak()
{
if (this.Age == 0)
{
Console.WriteLine("{0}, the newborn baby boy was just born and is too young to speak", this.Name);
}
if (this.Age > 0 && this.Age <= 3)
{
Console.WriteLine("{0}, the toddler boy babbles 'goo goo ga ga'", this.Name);
}
if (this.Age > 3 && this.Age <= 5)
{
Console.WriteLine("{0}, the toddler boy says, 'I like fire trucks'", this.Name);
}
if (this.Age > 5 && this.Age <= 12)
{
Console.WriteLine("{0}, the young boy says: I want to be a fireman'", this.Name);
}
if (this.Age > 12 && this.Age <= 20)
{
Console.WriteLine("{0}, the teenage boy says: I want a girlfriend'", this.Name);
}
if (this.Age > 20)
{
Console.WriteLine("{0}, the adult male says, 'Hey hey hey!'", this.Name);
}
}
} // end of HumanMale class
public class HumanFemale : Human
{
public HumanFemale(string name, int heightInInches, int age, string color, string eyeColor)
: base(name, heightInInches, age, color, eyeColor)
{
}
public override void Speak()
{
if (this.Age == 0)
{
Console.WriteLine("{0}, the newborn baby girl was just born and is too young to speak", this.Name);
}
if (this.Age > 0 && this.Age <= 3)
{
Console.WriteLine("{0}, the toddler girl babbles 'da da goo goo ga ga'", this.Name);
}
if (this.Age > 3 && this.Age <= 5)
{
Console.WriteLine("{0}, the girl says 'I wanna be a princess'", this.Name);
}
if (this.Age > 5 && this.Age <= 12)
{
Console.WriteLine("{0}, the young girl says: I AM a princess'", this.Name);
}
if (this.Age > 12 && this.Age <= 20)
{
Console.WriteLine("{0}, the teenage girl says: Like, totally. Did you see that other chick? Like, what was she wearing'", this.Name);
}
if (this.Age > 20)
{
Console.WriteLine("{0}, the adult female says, 'Yep, I'm a woman.'", this.Name);
}
}
} // end of HumanFemale class
} // end of namespace declaration