深層次拷貝

class People 
{
  //屬性 成員變量 對象屬性
  private String name;
  private int age;
  private char sex;
  private String contry;
  private String hairColor;
  private Father f;

  //拷貝構造 通過已知對象來複制得到另外一對象
  People(People p)
  {
    this.name = p.name;
    this.age = p.age;
    this.sex = p.sex;
    this.contry = p.contry;
    this.hairColor = p.hairColor;
    this.f = new Father(p.f);
  }

  People()
  {
  }

  //成員方法 對象功能
  public void setName(String name)
  {
    this.name = name;
  }
  public String getName()
  {
    return name;
  }

  public void setAge(int nAge)
  {
    int age; //方法内部聲明的變量:局部變量 局部變量不能用通路控制符修飾 使用之前必須初始化 
    age = 0;
    age++;
    this.age = nAge;  //允許局部變量和成員變量同名 區分方法：成員變量用this.來調用
  }
  public int getAge()
  {
    return age;
  }
  
  public void setSex(char nSex)
  {
    sex = nSex;
  }
  public char getSex()
  {
    return sex;
  }

  
  public void setContry(String nContry)
  {
    contry = nContry;
  }
  public String getContry()
  {
    return contry;
  }

  
  public void setHairColor(String nHairColor)
  {
    hairColor = nHairColor;
  }
  public String getHairColor()
  {
    return hairColor;
  }

  public void setF(Father f)
  {
    this.f = f;
  }
  public Father getF()
  {
    return this.f;
  }

  //吃
  public void eat(Food food)
  {
    System.out.println(hairColor+"的"+contry+"吃"+food);
  }

  //喝
  public void drink(Drink drink)
  {
    System.out.println(hairColor+"的"+contry+"喝"+drink);
  }

  //說
  public void speak(Language lang)
  {
    System.out.println(hairColor+"的"+contry+"說"+lang);
  }
  
}

class Father
{
  private String name;

  Father(String name)
  {
    this.name = name;
  }

  Father(Father f)
  {
    this.name = f.name;
  }

  public void setName(String name)
  {
    this.name = name;
  }

  public String toString()
  {
    return "父親名字:"+name;
  }
};

class Food
{
  private String type;

  public void setType(String type)
  {
    this.type = type;
  }
  public String getType()
  {
    return this.type;
  }

  public String toString()
  {
    return type;
  }
};

class Drink
{
  private String type;

  public void setType(String type)
  {
    this.type = type;
  }
  public String getType()
  {
    return this.type;
  }

  public String toString()
  {
    return type;
  }
};

class Language
{
  private String type;

  Language(String type)
  {
    this.type = type;
  }
  public String getType()
  {
    return this.type;
  }

  public String toString()
  {
    return type;
  }
};      

class PeopleTest 
{
  public static void main(String[] args) 
  {
//    People p1 = new People();
//    p1.setName("張三");
//    p1.setAge(23);
//
//    People p2 = new People();
//    p2.setAge(50);
//
//    System.out.println(p1.getAge());

    People p1 = new People();
    People p2 = new People();

    p1.setHairColor("黃頭發");
    p2.setHairColor("黑頭發");

    p1.setContry("葡萄牙人");
    p2.setContry("北韓人");

    Food sandWitch = new Food();
    sandWitch.setType("三明治");
    p1.eat(sandWitch);
    //p1.drink();
    //p1.speak();


    Drink d = new Drink();
    d.setType("可樂");
    p2.drink(d);

    Language chinese = new Language("漢語");
    p2.speak(chinese);

    Father f = new Father("喬丹");
    p1.setF(f);


    People p = new People(p1);

    p.setContry("中國人");
    System.out.println(p1.getContry());

    Father ff = p.getF();
    ff.setName("拉塞爾");

    System.out.println(p.getF());
    System.out.println(p1.getF());



  }
}