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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

Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
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.
Harper
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit 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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