cloneablecircle.java

java的小程序

class CloneableCircle extends Circle implements Cloneable
{
  private Name creator = new Name("Yong", "D", "Liang");
  public CloneableCircle(double radius)
  {
    super(radius);
  }
  public Name getCreator()
  {
    return creator;
  }
  public void setCreator(Name name)
  {
    creator = name;
  }
  public Object clone()
  {
    Object  o=null;
    try
    {
      o=(CloneableCircle) super.clone();       //浅拷贝
    }
    catch (CloneNotSupportedException ex)
    {
      return null;
    }
    ((CloneableCircle)o).creator=(Name)creator.clone(); //深拷贝
      return o;
  }

  public String toString()
  {
    return super.toString() + " " + creator.getFullname();
  }
}