開発環境
- OS: Windows 10 Pro
- IDE(統合開発環境): Visual Studio Community 2017
初めてのC# 第2版 (Jesse Liberty (著)、Brian MacDonald (著)、日向 俊二 (翻訳)、オライリージャパン)の14章(ジェネリックとコレクション)、14.6(練習問題)、練習14-1.を取り組んでみる。
コード
using System; class Program { static void Main(string[] args) { Cat cat = new Cat(10, "cat"); Dog dog = new Dog(20, "dog"); Animal[] animals = { cat, dog }; foreach (Animal animal in animals) { Console.WriteLine(animal); animal.Speak(); animal.Move(); } } } public abstract class Animal { private float weight; private string name; public Animal(float weight, string name) { this.weight = weight; this.name = name; } public abstract void Speak(); public abstract void Move(); public override string ToString() { return "Name: " + name + ", Weight: " + weight; } } public class Cat : Animal { public Cat(float weight, string name) : base(weight, name) { } public override void Move() { Console.WriteLine("Cat: Move"); } public override void Speak() { Console.WriteLine("Cat Speak"); } } public class Dog : Animal { public Dog(float weight, string name) : base(weight, name) { } public override void Move() { Console.WriteLine("Dog Move"); } public override void Speak() { Console.WriteLine("Dog Speak"); } }
入出力結果(コマンドプロンプト)
Name: cat, Weight: 10 Cat Speak Cat: Move Name: dog, Weight: 20 Dog Speak Dog Move 続行するには何かキーを押してください . . .
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