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Computer Programming

A category for questions about computer programming and programming languages.

10,506 Questions

Distinguish between class template and template class?

Template class: A generic definition or a parametrized class not

instantiated until the client provides the needed information. It?s

jargon for plain templates.

Class template: A class template specifies

how individual classes can be constructed much like the way a class

specifies how individual objects can be constructed. It?s jargon for

plain classes.

Class template is a template used to generate template classes. We cannot declare an object of a class template.

Template class is an instance of a class template.

What do array subscripts always have?

Array subscripts always have a zero-based index. In languages that allow an n-based index, the index is simply offset by n elements, so the compiler subtracts n from the given index to obtain the zero-based index.

Arrays are always zero-based because the first element of an array is found zero elements from the start of the array.

What are invalid variable names?

Invalid variable names are identifiers that are not recognised by the language compiler. All user-defined identifiers (both names and type definitions) must be introduced to the compiler by a declaration. A definition is also a declaration, however a definition is not required to use a name, only the declaration. However, all declarations must be defined somewhere.

Different programming languages have different conventions for naming identifier. However, in most languages, a name must always begin with a letter or an underscore, never a digit, because a leading digit usually signifies a value and would only complicate the language compiler's implementation.

Case-sensitive languages, such as C treat 'name', 'Name' and 'NAME' as being different identifiers while case-insensitive languages will treat them as being the same identifier.

What is ellipsis operator in c?

It somehow tells the compiler that the function will accept an unknown number of parameters.

Distinguish between primary memory and auxiliary memory?

the main memory is the central storage unit of the computer system.

it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU.

main memory includes RAM and ROMs.

devices that provide backup storage are known as auxillary memory.

auxillary memory are relatively slow in comparision to the main memory.

auxillary memory includes flash memory,magntic disks and floppys.

main memory is located inside the CPU but auxillary memory is located out the CPU. the main memory is the central storage unit of the computer system.

it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU.

main memory includes RAM and ROMs.

devices that provide backup storage are known as auxillary memory.

auxillary memory are relatively slow in comparision to the main memory.

auxillary memory includes flash memory,magntic disks and floppys.

main memory is located inside the CPU but auxillary memory is located out the CPU.

Why won't my psp let me download movies it keeps saying file corrupt?

You probably need a newer version of psp. Have you tried updating your's?

What programming language does Sega's hedgehog engine use?

It's most likely to use C++ as the 'core' engine, due to the fact that the programming language is the most reliable and also computing processor units (CPU's) can calculate and output the information given far more efficiently than something such as C or (god forbid) VBasic. Long story short - C++ is the most well know, compatible and widely used programing language of most.. if not, ALL 'Engines' in the games industry. Hell, it maybe one of the hardest programming lingo's.. but it's by far the best! Hope this answers your question. Sean Labbe

What does textalign property of the control determine?

Hi, If you are referring to textalign property in Dot Net: Textalign property determines the text to be aligned in the control on which you set this property.
BottomCenter Content is vertically aligned at the bottom, and horizontally aligned at the center. BottomLeft Content is vertically aligned at the bottom, and horizontally aligned on the left. BottomRight Content is vertically aligned at the bottom, and horizontally aligned on the right. MiddleCenterContent is vertically aligned in the middle, and horizontally aligned at the center. MiddleLeft Content is vertically aligned in the middle, and horizontally aligned on the left. MiddleRight Content is vertically aligned in the middle, and horizontally aligned on the right. TopCenter Supported by the .NET Compact Framework. Content is vertically aligned at the top, and horizontally aligned at the center. TopLeftSupported by the .NET Compact Framework. Content is vertically aligned at the top, and horizontally aligned on the left. TopRight Supported by the .NET Compact Framework. Content is vertically aligned at the top, and horizontally aligned on the right.
Hope this helps

What is the key motivation for each developing multiprogramming and multiprocessing?

Elephant terrorists were attacking America so America invented the internet and multiprogramming. Multiprocessing was what they stole from the Elephants. The key motivation behind developing both these multi-technothingies was to avoid the elephants uprising.

What is the difference between system specification and a software specification?

The specifications for a software application will be what that application needs to be able to do. The designwill be how the software engineers plan to do it.

A simple specification may be something like "This application must be able to take two numbers as input and display their sum."

The design could be:

# Accept two values via command line # Add values # Display sum or...

# Display calculator GUI # Accept two values via mouse input # Add values # Display sum

How do you remove write protection of sd card?

There is a hardware protection on the card itself. It's a little slider on the side. One way is protected, the other is not. Typically, having the slider up, towards the contact side of the card, is unprotected.

How do you return current time in arduino nano...?

The current time in Arduino Nano can be done by resetting the software. This will allow the system to run on the correct time. This may be done at home or by and IT professional.

What is string class constructors?

Hello friends...

The String class supports several constructors. To create an empty String, you call the default constructor.

For example,

String s = new String();

Thank you

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Why does your dog hover over?

Your dog might hover over things that interest him or her because the dog wants to smell or see the object. The dog might also be looking for food.

It told me to put an uppercase an atleast 1 lowercase into my password what does that mean?

An uppercase letter is commonly called a capital letter such as ABCDE, etc. Lowercase letters are the non-capital letters such as abcde, etc. The instructions to use at least one uppercase and at least one lowercase into your password is usually to make the password harder to decipher. This is not limiting your password to 1 uppercas AND 1 lowercase, it is merely stating that you need AT LEAST one of each in your password.

What is avls?

AVLS (Automatic Vehicle Location System) is the world's most popular smallest fleet management and tracking solution system. It works with the combination of GPS (Global Positioning System) & GSM (Global System for Mobile communication)/GPRS (Global Packet Radio Service) interface.

What is complex computation in computer?

comlex computation in computer is that computer can handle very complex task in different places for example in airplanes and satellite station and in varios aircraft organization which has very complex and different computations.

What skills and personalities are computer game developers looking for?

They want people with awesome skills in the computer department! they want people ready to work 24/7 on new games and the fun part is you get to play the games! they want an energetic personality, ready to try out new games ready to make new games ANYTHING INCLUDING GAMES!!!!!!!!!!!!!!!!! does that answer youe=r question?