class Person
{
	int id ;
	String firstName ;
	String laststName ;


}

class AnotherPerson
{
	int id ;
	String firstName ;
	String lastName ;

   public void setValue(int idP)
    {
       id = idP ;
	}
   public void setValue(int idP, String firstNameP )
    {
          id = idP ;
          firstName = firstNameP ;
	}
   public void setValue(int idP , String firstNameP ,
         String lastNameP )
    {
          id = idP ;
          firstName = firstNameP ;
          lastName = lastNameP ;
	}

    public String toString()
     {
        return( "id: " + id + " Name: " +
               firstName + " " +
                lastName  ) ;
	 }


}



public class SingleHierarchy
{

   public static void main( String args[] )
     {
         Person personObject1 = new Person() ;
         //Uses the Object class toString method
         System.out.println( personObject1 ) ;

         System.out.println( Integer.toHexString(personObject1.hashCode())  ) ;

         AnotherPerson  personObject2 = new AnotherPerson() ;



         //Method Overloading
          personObject2.setValue( 1 )  ;
          personObject2.setValue( 1 , "Jack" )  ;
          personObject2.setValue( 1 , "Jack" , "Dempsey" )  ;

         //Uses the AnotherPerson class toString method
         //Method Overriding
         System.out.println( personObject2 ) ;



	 }

}