/*
Software Architecture Design Patterns in Java
by Partha Kuchana 
 
Auerbach Publications
 
*/
 
 
 
class Person implements Cloneable {
  //Lower-level object
  private Car car;
 
  private String name;
 
  public Car getCar() {
    return car;
  }
 
  public String getName() {
    return name;
  }
 
  public void setName(String s) {
    name = s;
  }
 
  public Person(String s, String t) {
    name = s;
    car = new Car(t);
  }
 
  public Object clone() {
    //shallow copy
    try {
      return super.clone();
    } catch (CloneNotSupportedException e) {
      return null;
    }
  }
}
 
class Car {
 
  private String name;
 
  public String getName() {
    return name;
  }
 
  public void setName(String s) {
    name = s;
  }
 
  public Car(String s) {
    name = s;
  }
}
 
public class ShallowCopyTest {
 
  public static void main(String[] args) {
    //Original Object
    Person p = new Person("Person-A", "Civic");
    System.out.println("Original (orginal values): " + p.getName() + " - "
        + p.getCar().getName());
 
    //Clone as a shallow copy
    Person q = (Person) p.clone();
 
    System.out.println("Clone (before change): " + q.getName() + " - "
        + q.getCar().getName());
 
    //change the primitive member
    q.setName("Person-B");
 
    //change the lower-level object
    q.getCar().setName("Accord");
 
    System.out.println("Clone (after change): " + q.getName() + " - "
        + q.getCar().getName());
 
    System.out.println("Original (after clone is modified): " + p.getName()
        + " - " + p.getCar().getName());
 
  }
}