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C Sharp

C Sharp is a programming language developed by Microsoft Corporation. It is designed to be a simple, general-purpose, modern, object-oriented programming language. The latest version is C# 4.0. It is designed for developing applications for both embedded and hosted systems.

343 Questions

How does a user view differ from a conceptual database?

by telling the professor at ODU homework ?'s are being posted on this website

What do you mean by visual in .net?

The c# language is a member of the .net framework of languages. Every windows based computer has the .net framework installed as part of the operating system package. The best way to think of the .net framework is as an interpreter that can understand many different languages and then convert them into instructions that a computer can understand.

The .NET framework is a software framework developed by Microsoft; the framework is essentially like lego blocks that can be used to easily build windows programs. So let's say you want to write a program for a machine running windows operating system, what you can do if you are using a .net language(such as c#, c++, visual basics etc) is write the program using the .net framework, the advantage of using an api(application programming interface) such as .net is that you can focus on solving problems instead of doing tedious tasks like trying to create a button from scratch or a window(such as the one your web browser is in). Instead of creating these "objects"(i.e. the button or the window) from scratch you can simply write one line of code and you have a button, therefore you can focus on what happens when you press the button or what to display in the window rather than trying spending your time and effort trying to write lines of code to create a button or form.

What would be an abnormal upper GI result?

Obstructions or inflammation, including ulcers of the esophagus, stomach, or small intestine; or irregularities in the swallowing mechanism are just a few of the possible abnormalities that may show up on an upper GI series.

Applications of chemotaxonomy?

APPLICATIONS OF CHEMOTAXONOMY:

1. Separation of higher systemic categories :

plant division:

· Chemical characters are always advantageous over morphological character.

Eg. Flavonoids are generally found in bryophyte except one or two reports where it has been reported the isolation of crystalline anthocyanin

From a red Bryum species was being reported.

Similarly, lignin that no plant lower than mosses contains a substance like lignin.

So lignin and flavonoids are common in almost all plant groups higher than the bryophytes.

· There are few chemical substances which confirms the relations between those two orders - Isoquinoline alkaloids, Salsoline in a salsola species and carnegine in a cactaceae; corypalline from a corydalis species having the similar isoquinoline nucleus intheir structures.

2. Related genera having similar enzyme system producing analogous metabolites:

· The pyrrolizidine alkaloids are analogous with quinolizidine, although their precursors are ornithine and lysine respectively but they have similar enzyme system.

· Both type alkaloids have been found to occur in botanically related genera.

Eg. "Pyrrolizidine "alkaloids reported to occur in crotalaria and "Quinolizidine" alkaloids have been isolated from lupines and cytisus.

Both belonging to genistae genera.

3. Complex metabolic products are good chemotaxonomic marker:

· The occurrence of complex secondary metabolites like biflavonoid and complex alkaloids are helpful in classification of medicinal plants.

· The biflavonoids are plant polyphenols, structurally they are divided into several subclasses, flavanol, anthocyains and chalcones.

· They are biosynthesized through a combination of the shikimic acid and the acylopolymalonate pathways.

· They are omni present in vascular plants but more rarely in bryophytes.

· Some biflavonoids classes have a restricted distribution ; eg. Isoflavonids occur predominantly in the Fabaceae family.

· The biflavonyls have mainly been reported in leaves of gymnosperms.

· It has been reported that biflavonyls are absent in genera of Pinaceae, hence the inability to synthesize bifllvonyls can be used as a characteristic of the order pinales.

Hence the complex structure compounds like Biflavonyls are very important for the chemical classification of the gymnosperms.

What are the Features of dot net technology?

The Microsoft .NET Framework is enrich lots of features that makes it a milestone in the world of software technology. And the main Microsoft .NET Framework includs:

  • Support for Components
  • Language Integration
  • Language Independency
  • Common Runtime Engine
  • Base Class Library
  • Application Interoperation across the Web
  • Simplified Development and Deployment
  • Improved Reliability
  • Portability

Where can you get c sharp programming language?

Its not really something you can "get", if you mean learn then there a number of websites on the internet that you can use to learn c#. Just go to Google and type in c# tutorials there are many good websites with free tutorials so you can learn and practice your programming skills such as csharpcorner, learning-c-sharp, csharpstation and of course YouTube which is useful for video tutorials if you are tired of reading. I have posted some relevant links at the bottom in the link section.

What does exe mean?

The use of .exe after a file name means that it's an executable file. it means file executable. it means it is is a stand alone program which can run by itself.

What is testing and debugging?

Testing is reporing that issue/defect is present in the system. That is finding the issue by Running/executing the system.

Debugging: Running/executing system/program in order to correct the issue.

For eg. in a system equation (a+b)-(c+d) when we input values a=4. b=3, c=2, d=1

Tester when enterd above values answer is 5 instead of 4. This is defect found by testing.

Developer now debugs the system by executing a+b first, checking the result, then c+d and tries to debug the problem.

In this case it was found that a+b was not working properly as b was taking value of a.

What was the main object of the Crusades?

The original stated purpose was to free Jerusalem from the infidels; they began with a call for help from the Eastern Orthodox Byzantine Empire against an expanding Muslim dynasty. They had tremendous impact on politics, economics and society. See the Related Links for "Wikipedia: Crusades" and "Answers.com: Crusades" to the left for more information.

What is the difference between the C class the E class and the S class Mercedes Benz cars?

C is the entry level mercedes. Think of it as the BMW 3 series. Starts at about $35,000 without many gadgets.

E is the flagship and have built them for 50 years. Think of it like the BMW 5 series. It's about $50,000 yet comes with a ton of great stuff. It's pretty big. Great trunk.

S is their high end luxury brand. Think of it as the 7 series BWM. They are heavy yet fly if you go with the larger engines. It's royalty with the pointed star. They start at about $75,000.

What is the difference between association class and abstract class in software designing?

Association class is describing the relationship between classes. An abstract class is just 1 class, provides some abstraction behaviors that may be (but do not have to) derived, overridden from.

Is object a member of a class?

Yes, you would need to define your variables. Also initialize them

What is the difference between class inheritance and interface inheritance?

interface inheritance is a misleading term. Interface inheritance would be equivalent to the union of the method signatures of interfaces ( no typo here, an interface may implment multiple other interfaces)

Class inheritance - single hierarchy (in C#), and not only the methods are inherited, but also the data members. (interface in C# cannot define data members)

What are the disadvantages of prototyping?

At least 2 disadvantages:

  • If the prototype is working, developers tend to build upon the code as production one.
  • A prototype may only prove one of serveral possible solutions. Not seeing the whole picture

Some would argue that prototyping is a waste of time. In my experience, prototyping, if applied correctly, actually save a lot of time. Saving time may be an advantage, not a disadvantage.

Write a program that generates the Fibonacci series up to 200?

class Program

{

static void Main(string[] args)

{

int n1, n2, n3,i;

n1 = 0;

n2 = 1;

for (i = 1; i <= 20; i++)

{

n3 = n1 + n2;

if (n3 <= 200)

{

Console.WriteLine(n3);

n1 = n2;

n2 = n3;

}

}

Console.ReadKey();

}

}

How do you program C programming language in a device?

You need to get an SDK for the device you are planning to program for, SDK also lets you run your program on PC in an emulator. Once written you can then compile the program for device which would generate an installer package that you can then install on the device.

In ANSI C you can hide data by using private access specifier Justify?

One can always declare a datatype as static which will limit the scope to the file only. this way data hiding can be achived. For more clearance on the same please refer 'the C programming language'.

Data hiding means only relevant data is visible to the user and all the background information is hidden from the user. In c++, the variables are named as data members and these can be hidden with the help of private access specifier.

In procedural languages, variables(global variables) are free to flow from functions to functions and hence they were not secured. But in C++, only the class in which the data members are being declared can access them by using private specifier. As, the data members and also member functions of a class cannot be accessed outside the class if they have private access so, they get hidden from the user and hence the data hiding is achieved.

Also in inheritance when we derive a class from the base class then the derived class cannot access the private members of the base class. In addition, if a class is derived from another class privately i.e. for example syntax : class B : private A , is used then all the public and protected members (not private) becomes private to class B and cannot be accessed outside the class B, even by using the object of class B.

Hence, data hiding is achieved in C++ through private access specifier.

Is distributed system is loosely coupled or tightly coupled?

It can be either or even both - depends on how the designer(s) designed the distributed systems

What is good data?

A good data is some thing that makes sense . It should be normalized that is not repetitive . Or non redundant which means the same that is NON REPETITIVE.

What is method in c sharp?

Comparing C# to other computer languages,

A method with void, may be considered as a procedure, a function (returns nothing), or a subroutine.

A method with a returning data type, is a function.

If you don't have a other computer language background, a method in C# may be considered as a sequence of instructions to computer to be carried out.

Which part of the for loop is resposible for assigning a value to a variable?

Typically, the variable is initialized in the first clause of the for statement, and incremented in the third clause. However, the language does not require any particular type of statement in these places.

The following is a typical example:

for (int i=0; i

In this example, the variable i is initialized in the first clause, and incremented in the third.

The same effect could be realized by putting the initialization and increment in other places:

int i=0; for (/* */; i++ /* */)

but this would be more difficult to read.

Why you are mark a class protected for inheritance?

Public, Private and Protected "keywards/ access modifiers" are used similarly as they are with variables. Protected variables, methods or class CAN ONLY be used by an inherited class.