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What is an assembly?

You can learn more about an assembly here . Frankly, I'm not absolutely certain at this time how to interpret the access levels of internal and protected internal . However, I believe that an assembly in C# is similar to a package in Java, and if so, thenI do know how to interpret these two access levels.

Public, private, and protected

To a first approximation, you can probably guess what public and private mean. Public members are accessible by all code that has access to an object of the class. Private members are accessible only by members belonging to the class.

The protected keyword is used to provide inherited classes with special access to the members of their base classes.

A public user interface

In general, the user interface for a class consists of the public methods.

The variables in a class can also be declared public but this is generally considered to be bad programming practice unless theyare actually constants.

For a properly designed class, the class user stores, reads, and modifies values in the object's data by calling the public methods on a specific instance (object) of the class. (This is sometimes referred to assending a message to the object asking it to change its state).

Normally, if the class is properly designed and the implementation is hidden, the user cannot modify the values contained in the private instance variables ofthe object without going through the prescribed public methods in the interface.

A set Accessor method

C# has a special form of method, often called a set Accessor method. The use of this type of method makes it appear that an assignment is being madeto store a value in a private instance variable belonging to an object when in fact, the assignment operation is automatically converted to a call to a set Accessor method. I discuss this more fully in my earlier tutorial titled Learning C# and OOP, Properties, Part 1 . I will also show an example of a set Accessor method later.

A get Accessor method

C# also has a special form of method often called a get Accessor method that operates like a set Accessor method but in the reverse direction. A get Accessor method makes it appear that the value of a private instance variable can be obtained by referencing the name of the objectjoined to the name of the variable. In fact, that reference is automatically converted to a call to a get Accessor method.

Not a good design by default

An object-oriented design is not a good design by default. In an attempt to produce good designs, experienced object-oriented programmers generally agree oncertain design standards for classes. For example, the data members (instance variables) are usually private unless they are constants. The user interfaceusually consists only of public methods and includes few if any data members.

Of course, there are exceptions to every rule. One exception to this general rule is that data members that are intended to be used as symbolic constants aremade public and defined in such a way that their values cannot be modified.

Questions & Answers

anyone know any internet site where one can find nanotechnology papers?
Damian Reply
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Mueller Reply
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Source:  OpenStax, Xna game studio. OpenStax CNX. Feb 28, 2014 Download for free at https://legacy.cnx.org/content/col11634/1.6
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