Java - Architecture: Bringing Order to Chaos(commonality, variability)

Head First Object-Oriented Analysis and Design
A Brain Friendly Guide to OOA&D
(O'Reilly Media)
Brett McLaughlin (著), Gary Pollice (著)
David West (著)
邦訳
Head Firstオブジェクト指向分析設計
頭とからだで覚えるオブジェクト指向の基本
長瀬 嘉秀 (編集), 永田 渉 (編集)
株式会社テクノロジックアート (翻訳)

開発環境

• OS X Yosemite - Apple (OS)
• Emacs (CUI)、BBEdit - Bare Bones Software, Inc. (GUI) (Text Editor)
• Java (プログラミング言語)
• javac (コンパイラ)
• java (application launcher)

Head First Object-Oriented Analysis and Design: A Brain Friendly Guide to OOA&D (Brett McLaughlin (著)、 Gary Pollice (著)、 David West (著) 、 O'Reilly Media)のChapter 7. Architecture: Bringing Order to Chaos、DESIGN PUZZLE(No. 4523)を解いてみる。

その他参考書籍

• Head First Java 第2版 ―頭とからだで覚えるJavaの基本

DESIGN PUZZLE(No. 4523)

コード(BBEdit, Emacs)

Unit.java

public class Unit {
    private Weapon weapon;
    
    public Unit(Weapon weapon){
        this.weapon = weapon;
    }
}

Tank.java

public class Tank extends Unit{
    private int attack;
    private int experience;
    private double defense;

    public Tank(Weapon weapon, int attack, int experience, double defense){
        super(weapon);
        this.attack = attack;
        this.experience = experience;
        this.defense = defense;
    }
}

Soldier.java

public class Soldier extends Unit {
    private String name;

    public Soldier(Weapon weapon, String name){
        super(weapon);
        this.name = name;
    }
}

Airplane.java

public class Airplane extends Unit{
    private int speed;
    private String model;

    public Airplane(Weapon gun, int speed, String model){
        super(gun);
        this.speed = speed;
        this.model = model;
    }
}

Weapon.java

public enum Weapon{
    Bazooka,
    Gatling
}

入出力結果(Terminal)

$ javac Unit.java Tank.java Soldier.java Airplane.java
$