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  1. using System;
  2. using Animals;
  3.  
  4.  
  5.     class Pet {
  6.         static void Main(string[] args) {
  7.             Animal[] pets = {
  8.             new Dog("ぽち"),
  9.             new Cat("たま", 1)
  10.             };
  11.  
  12.             foreach(Animal pet in pets) {
  13.                 pet.play();
  14.             }
  15.  
  16.         }
  17.     }
  18.  
  19.  
  20. namespace Animals {
  21.     abstract class Animal {
  22.         protected string name;
  23.  
  24.         public Animal(string name) {
  25.             this.name = name;
  26.         }
  27.  
  28.         public virtual void play() { }
  29.     }
  30.  
  31.     class Dog : Animal {
  32.         public Dog(string name) : base(name) {
  33.         }
  34.  
  35.         public override void play() {
  36.             Console.WriteLine("わんわん！" + name + "だよ!");
  37.         }
  38.     }
  39.  
  40.     class Cat : Animal {
  41.         private int sleep;
  42.  
  43.         public Cat(string name, int sleep) : base(name) {
  44.             this.sleep = sleep;
  45.         }
  46.  
  47.         public override void play() {
  48.             Console.WriteLine("にゃあ！" + name + "だよ!");
  49.             if(sleep == 1) {
  50.                 Console.WriteLine("...でも寝る");
  51.             }
  52.         }
  53.     }
  54. }
  55.  
Success #stdin #stdout 0.04s 28624KB
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わんわん！ぽちだよ!
にゃあ！たまだよ!
...でも寝る
https://ideone.com/XTFTBV
language:
C# (NET 6.0)
created:
11 days ago
visibility:
public

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