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Computer Programming

A category for questions about computer programming and programming languages.

10,506 Questions

What do you mean by Instantiating the function template?

Function templates are generic functions for which at least one argument must be a generic type. You cannot instantiate a generic type without knowing its actual type, so until you provide an actual type for the function, the function template cannot be instantiated. You provide an actual type simply by calling the function. If an unambiguous template exists, the compiler generates the actual function for you. At that point the function is said to have been instantiated, just as if you'd written the function by hand. If you call the function again with different types, then new instances of the function are instantiated to match those types, just as if you'd manually written the overloads yourself.

Which action do you perform prior to unit testing in order to reduce the number of bugs that are found?

Energize the unit, wait for it to come up to operating temperature, then

introduce a 1:1 blend of RAID and DEET into its convection cooling intake.

Is there anything less than bit?

Not in computing. A bit is a single entity. A nibble is four bits. A byte is eight bits.

What is character oriented function?

What about strchr? Or, isdigit and its family (often implemented as macros, though)?

What is the default print format in cobol?

dump

it contains both hexadecimal and binary format

Who designed SQL programming language?

SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce in the early 1970s.

What is abbreviation of GW-Basic?

I dunno , But i think this answer is correct : (Look BeLow :D )

~

GW-BASIC was a dialect of the programming language BASIC developed by Microsoft from BASICA, originally for Compaq. It is compatible with Microsoft/IBM BASICA, but was disk based and did not need the ROM BASIC. It was bundled with MS-DOS operating systems on IBM PC compatibles by Microsoft. Microsoft also sold a BASIC compiler, BASCOM, compatible with GW-BASIC, for programs needing more speed. The language was suitable for simple games, business programs and the like. Since it was included with most versions of MS-DOS, it was also a low cost way for many would-be programmers to learn the fundamentals of computer programming. With the release of MS-DOS 5.0, GW-BASIC's place was eventually taken by QBasic, the interpreter part of the separately available QuickBASIC compiler.

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What is the difference between structure and pointer?

A structure is a collection of primitives or other structures. A pointer is a memory address. Comparison of the two is like comparing bowling balls to cinder blocks. You can say that a structure defines the layout of the data, while a pointer points to data that is a particular structure.

How do you put a image for a background on a PowerPoint?

You right click the the background then click on format background then picture and texture fill, file and then select which picture then click close.

What is the difference between an expert system and an artificially intelligent system?

An expert system mimics the expertise of an expert, such as a physician, geologist etc. An intelligent system is a system learns and acts and reaches objectives not by chance. For example while searching for a book the an intelligent system recommends books based on your and similar search patterns. So there is some similarity in terms of support in task between the two systems, however, an expert system is centered around the expertise of an expert. The other difference is the Expert System having a Knowledge base that captures the expert's knowledge, while the iintelligent system may or may not have a knowledge base. Hope this helps.

Discuss two web-based promotional techniques?

You can promote your business or product online in a number of ways. One straightforward method is through pay-per-click (PPC) advertising, where the advertiser displays their text or image (display) ad to a specified audience and only pays when those ads are clicked. Another way to promote yourself online is by utilize social media sites like Facebook, Twitter or YouTube to create and share interesting content to engage your audience and create a stronger brand identity for yourself.

How to use please excuse my dear aunt sally in Excel?

Please Excuse My Dear Aunt Sally (PEMDAS) is pretty much what Order of Operations is. It means Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.

What do you think is the rule of a database a web app?

For a web application, a database often holds information pertaining to a customer's credentials (sign in username and password), account information, saved credit cards, preferences, and online order transaction info.

Clearly explain the functions that the mantissa and exponent have in floating point number?

Think of the floating-point number as a number in scientific notation, for example, 5.3 x 106 (i.e., 5.3 millions). In this example, 5.3 is the mantissa, whereas 6 is the exponent. The situation is slightly more complicated, in that floating-point numbers used in computers are stored internally in binary. Some precision can be lost when converting between decimal and binary.

Think of the floating-point number as a number in scientific notation, for example, 5.3 x 106 (i.e., 5.3 millions). In this example, 5.3 is the mantissa, whereas 6 is the exponent. The situation is slightly more complicated, in that floating-point numbers used in computers are stored internally in binary. Some precision can be lost when converting between decimal and binary.

Think of the floating-point number as a number in scientific notation, for example, 5.3 x 106 (i.e., 5.3 millions). In this example, 5.3 is the mantissa, whereas 6 is the exponent. The situation is slightly more complicated, in that floating-point numbers used in computers are stored internally in binary. Some precision can be lost when converting between decimal and binary.

Think of the floating-point number as a number in scientific notation, for example, 5.3 x 106 (i.e., 5.3 millions). In this example, 5.3 is the mantissa, whereas 6 is the exponent. The situation is slightly more complicated, in that floating-point numbers used in computers are stored internally in binary. Some precision can be lost when converting between decimal and binary.

What is business logic and presentation logic in java?

business logic ....refers to the domain specific logic rules,proc,and processes

presentation logic......concerned with how objects are displayed to the user of the software

Why constructor is a special member functions?

Every class, including abstract classes, MUST have a constructor. Hard Code that into your brain. But just because a class must have one, doesn't mean the programmer has to type it. A constructor looks like this:

class Car {

Car() { } // The constructor for the Car class

}

You notice anything missing in the declaration above? There's no return type! Two key points to remember about constructors are that they have no return type and their names must exactly match the class name. Typically, constructors are used to initialize instance variable state, as follows:

class Car {

int size;

String name;

Car(String name, int size) {

this.name = name;

this.size = size;

}

}

In the preceding code example, the Car class does not have a no-arg constructor. That means the following will fail to compile:

Car f = new Car(); // Won't compile, no matching constructor

but the following will compile:

Car f = new Car("Ford", 43); // No problem. Arguments match

// the Car constructor.

So it's very common for a class to have a no-arg constructor, regardless of how many other overloaded constructors are in the class (constructors can be overloaded just like methods). You can't always make that work for your classes; occasionally you have a class where it makes no sense to create an instance without supplying information to the constructor. A java.awt.Color object, for example, can't be created by calling a no-arg constructor, because that would be like saying to the JVM, "Make me a new Color object, and I really don't care what color it is...." Do you seriously want the JVM making your color choices?

Do networks need or involve computers?

A network is a group of individual items linked together through connections.

The Internet is a network.
A group of friends or business acquaintances is also a kind of network.
Your brain is a network.

No, they don't need computers. And yes, they can involve computers but they don't have to.

How do you install deep freeze in 1 tb hard disk?

Deep freeze installation for 1 TB and 2TB Hard disk up-to Nth level

Deep freeze are not supported in 1 TB and 2TB Hard disk so another installation way are shown below

STEPS

1. go to Disk management in the computer

2. partition the hard drive limit at 750 GB in 1TB or 2TB

3. The remaining 250 are don't allocate it is said to UN-partition state

4. then install deep freeze 4.2 for Windows XP, 6.3 for Windows Vista,7.0 for Windows7

5. After installation system will be restated

6. After the next boot user will set password and set the deep freeze at boot thawed and click restart

7. After the restart go to Disk management and create a new partition for unallocated space

8. then click the deep freeze icon to set Boot frozen then click restart

9. problem cleared

these are the simple steps for Hard Disk Freezing Failure

What menu do you use to begin opening the font dialog box?

You can select the view option in order to view the font dialog box. This will allow you to put many menus on top of any software program.