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Computer Programming

A category for questions about computer programming and programming languages.

10,506 Questions

When is the Save command used?

To save a previously saved document to the same location with the same name.

Language known as the first generation of programming languages is the only language the computer directly recognizes?

What computer directly recognizes is plain machine code in over words sequence of 0 and 1, which in programming field mostly is displayed in HEX (base 16) system.

Sequence or bits: 10110000 00101001 (HEX: B0 29) in x86 architecture is understood as moving value 0x29 to AL register. In assembly language it would look like:

MOV AL, 0x29

Where 0x29 is 41 in decimal.

But the first generation of languages was Assembler (Or just "A", later followed by "B" (used for writing Unix system), "C" (now one of the widely used), now we have "D" language (mix of C++/JAVA/C#) coming).

To summarize, computer understand sequence of bits, while first generation of programming languages (low-level programming) was Assembler.

What language is completely object oriented c plus plus or java?

Java is the complete object oriented Programming Language as every thing in java is an object,

What are two different ways to turn on warning in perl?

For Perl one-liner, use -w option on the command line. UNIX or Windows, use's the -w option in the shebang line (The first # line in the script). When using other systems, choose compiler warnings, or check the compiler documentation.

Which programming language and development tools are used for developing Andorid applications?

Android applications are programmed using the Java programming language. While different tools exist, the most popular by far is the Eclipse IDE.

The Eclipse IDE is capable of installing extra bits of software called "plugins." Google produces a plugin called Android Development Tools (ADT.) This plugin makes development measurably easier. It also allows you to integrate your development more closely with the build processes and with the Android emulators.

What is an Event Handler in Macromedia Director?

An event handler contains lingo or javascript code which is executed when a particular event fires. An event handler always begins with "on" followed by the event name, and terminates with a sigle "end" (optionnaly followed by the event name).

Here's an example : Intercept a mouse click on a sprite, and display a message box :

on mouseUp
alert("Hello world")
end

Animations or parents scripts can contain handlers subjected to be called from anywhere in a projection.
Behaviors scripts contain only handlers concerning events fired to a particular sprite (in the example above, the handler should be located in a behavior script attached to the clicked sprite.

What is the difference between object oriented programming from text based programming?

An object-oriented program is made up of objects. An object has an internal state.Every object is an instance of (belongs to) a class.In simple terms a class is just a template for the object. It contains details of all the behaviour of an object along with what state information the object has. Text Programming:-Users want a Language that is more efficent, re-usable, easily maintainable, easy to read, and easy to write code in.

What is backend programming?

"Back end" and "front end" are typically used to refer to two different parts of an application.

The front end is what the user sees and interacts with. This includes things like GUIs and web pages.

The back end is generally where the actual work of a program is done. This can include anything from a database or a server to another module in the same program as the front end.

How to multiply two int pointer variable in C language?

You do not multiply pointers. If you want to multiply the values that they point to you must dereference them, usually with a *

Advantages of master template?

templates are a special type of word document that can hold text,styles,macros,keyboard,shortcuts,custom toolbars and auto text entries.A document created using a template will have access to all of these features and a large part of your job in creating a new document will be done for you if your templates are well though out.

template types
Word"s standard templates come in up to three different "flavors".Microsoft refers to these as template types:
1. Contemporary
2. Elegant
3. Professional.

What is psychic window?

It is a shape of your choice ,one easy enough for you to quickly manifest in your minds eye. That you can project thought into to correlate energy or psychic energy into images or things your mind can understand or interpret . You can also channel other outside energy's coming at you through this "shape" for the same purposes..

If you want to burn a game CD to a blank disc what are the effects will the one on the original get cleaned off the disc or it will be on both of them?

It will be on both of them.

Note that many game CDs have anti-piracy measures that either make it difficult to copy the disc using standard copying programs or prevent the copied disc from working.

What is negative logic system?

A positive logic system will output true only when the input is true. A negative logic system will output true only when the input is false.

The NOT logic gate is an example of a negative logic system. That is, NOT( false ) will output true.

What is the difference between Imperative object-oriented functional and logic programming?

These are all programming paradigms; they describe the "style" used to build the structure and elements of a computer program.

Imperative programming is typically contrasted with declarative programming because they are mutually-exclusive (you won't find any programming languages that are both imperative and declarative), in the same way that you won't find any languages that have both a structured paradigm and a non-structured paradigm. The main difference between the two is that imperative programming describes how a result is to be achieved without specifying what is to be achieved, whereas declarative programming describes what is to be achieved without specifying how it is to be achieved.

Another key difference is that imperative programming makes extensive use of changing-state and mutable data whereas declarative programming does not. Put simply, there are no assignment operations or side-effects in declarative programming.

Given that the object-oriented programming (OOP) paradigm is based upon objects with member methods that can mutate the object's attributes, OOP is based upon the imperative paradigm.

The functional programming paradigm is not to be confused with function calls which are based upon the procedural programming paradigm, which is itself based upon the structured programming paradigm, both of which are imperative. By "functional" we really mean mathematical functions, which are declarative. Although there are some imperative languages that do allow a type of functional programming style, at best they are a grey area because of the side-effects.

Logical programming is also declarative and is based on relations.

What is the benift of learning c language?

You will be able to understand C programs. Also to write C programs.

How do you run autocad 10 in Windows XP?

You will need to use some form of "Virtualization", such as Microsofts Virtual PC.

Define primary memory?

primary memory is built in memory on a computer it is the main type of memory.... eg RAM ROM and HDD

True or false the controlling expression of a switch statement must have a value that is an integer or a character?

False. In C++, it must evaluate to an integral type, which includes floating point types. In other languages, a character array or other object may also be acceptable.

When will the results for national science olympiad come?

after the competition, youre manager gets the results in a packet and they are posted online