<< Chapter < Page Chapter >> Page >

When this method is called, it does the following:

  • Displays the value of the constructor parameter passed to the object when it was constructed.
  • Displays the identification of the object based on the value of the object counter when it was constructed.

Containment hierarchy is displayed

Because cShow calls bShow , which in turn calls aShow , we should expect that the call to the cShow method on an object of the member class named C would display information about the containment hierarchy.

(Simply as another reminder, the containment hierarchy is completely independent of the inheritance hierarchy.)

Calling cShow

Referring once more to Listing 1 , we see that the method named cShow is called on the object of the class named C when that object is instantiated. We will see the result of that call shortly.

The cShow method

Listing 14 shows the beginning of the cShow method.

The code in Listing 14

  • Displays a string separator to help locate the specific output in the large quantity of output produced by the program.
  • Displays the object identifier based on the object counter.
  • Displays the value passed to the constructor when the object was instantiated.

The screen output

The code in Listing 14 produces the output shown in Figure 7 .

As you can see by comparing this with Listing 1 , this is the first object instantiated from the class named C, and is the object instantiated from thestatement in the main method in Listing 1 . (The constructor parameter value is 3.)

Call the bShow method

Continuing with the code in the cShow method, the code in Listing 15 calls the private method named bShow on the containing object of the class B to which this object is linked.

As you will recall from the previous discussion, the code in the bShow method will, in turn, call the aShow method on the containing object of the class named A to which the object of the class B is linked.

The screen output

The code in Listing 15 produces the output shown in Figure 8 .

As you can see in Figure 8 , the linked objects of the classes B and A are the first objects instantiated from those classes. In addition, the savedvalues of the constructor parameters show that these are the objects that were instantiated by the statement in the main method of Listing 1 .

Call the aShow method

As I explained earlier, the object of the class C is linked to the containing object of the class named B. The code in Listing 16 shows that the object of the class C is also linked to the containing object of the class A (even though the containing class named A is one level removed in the containment hierarchy).

Implicit access

The methods of a member class have implicit access to all members (including private members) of all containing classes. Thus, the code in the cShow method, belonging to the object of the class named C, can directly call the private aShow method of the containing class named A.

The screen output

Therefore, the code in Listing 16 produces the output shown in Figure 9 .

You can tell by the values displayed in Figure 9 that the aShow method called in Listing 16 was called on the same object on which the aShow method was called by the code in Listing 15 . However, in Listing 15 , the bShow method was called first, which in turn called the aShow method.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Object-oriented programming (oop) with java. OpenStax CNX. Jun 29, 2016 Download for free at https://legacy.cnx.org/content/col11441/1.201
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Object-oriented programming (oop) with java' conversation and receive update notifications?

Ask