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Computer Programming
A category for questions about computer programming and programming languages.
10,506 Questions
Advantages and disadvantages of the programming language FORTRAN?
Up till Fortran 90/95, the language was primarily intended for calculations. It remains one of the best computational languages ever developed, and is still in heavy use in the financial industry.
However, due in large part to disagreements among members of the Fortran development groups, Fortran 77 was deficient in a number of areas. Most or all of these have since been addressed by Fortran 90/95, however, so they do not represent current language deficiencies. These limitations included:
- Poor string handling, including weak concatenation and length functions.
- Subroutines pass arguments by reference rather than by value, making data protection difficult.
- Data scoping is limited. Variables can either be local or in COMMON blocks, but no other scoping is allowed. As a result, it's not possible to write file-level procedures; shared logic must be in a separate subroutine or repeated via cloning.
- Loop controls are somewhat limited, requiring continued use of the GOTO statement to manage flow in some cases.
Where can one find a tutorial for Visual Basic?
Tutorials for Visual Basic can be found on MSDN Microsoft, Amos Development, and Home and Learn UK. The Engineering Department at Auburn University also offers a very detailed tutorial for Visual Basic.
How much a base class members can access of derived class?
Ideally, none. Base classes should have no knowledge whatsoever of their derived classes and therefore should have no access to any members declared in the derived classes. However, derived class methods are accessible via virtual functions declared in the base class. The correct methods (overrides) are called via the virtual table, but the base class itself requires no specific knowledge of the derived class in order to call these methods. This makes sense since a base class cannot know in advance all the classes that may or may not derive from it in the future.
If a method must be guaranteed to be implemented by a derived class, a pure-virtual method can be declared in the base class instead. This renders the base class abstract, meaning you cannot instantiate an object from the base class, only from a derivative that fully implements (or inherits) all the pure-virtual methods.
Conversely, a derived class can access all the public and protected members of its base class.
Why is it important to manage your files?
It is important to manage your files because they become cluttered and slow your system. It is also important to manage your files because important information is stored in those filed and you might need to retrieve that information.
There are no records of when insertion sort was invented because people have been sorting things using the insertion sort and selection sort algorithms since before records began; they are ancient algorithms. You cannot be credited for creating an algorithm that already exists.
Shell sort, which is a refinement of insertion sort, was developed much later, in 1959 by Donald Shell. His algorithm can be credited because it takes advantage of a computer's processing abilities, whereas insertion sort and selection sort rely purely on a human's processing abilities.
Is the for loop a pretest type of loop?
Pretest loops, such as for-loop, while-loop, execute/evaluate the condition statement first, if the condition is met, then the statements of the loop are executed. If you were referring to the body of the loop being carried out at least once, no, the body will not be touched if the condition fails (pre-test, test BEFORE the [next] execution of the body). But the condition of the loop must have been evaluated at least once.
In contrast to the post-test loops, such as do-while, repeat-until, the condition is evaluated AFTER the [next] execution of the body. It is possible that the condition is never evaluate, and not the entire loop body being executed.
What part of a file name indictes the file type and program that created it?
Usually nothing. The file extension (the .jpeg, .exe, .png, .mov, etc.) tells what kind of file it is. Certain programs deal with certain extensions, like word with .doc, .rtf, and .txt. Paint and photoshop deal with .jpeg, .png, .gif, and .bmp. Powerpoint deals with .ppt, and so on. Hope this helps!
What is readability as a criteria of evaluating programming languages?
Yes. Some computer languages, such as VB, VB.NET, COBOL are designed for business, while Fortran is for engineers and scientists.
Which one is better between Compiler and interpreter?
A compiler is a program that takes a programming language like that of java and then translates it into computer language for the software user. The interpreter just ( just like that of a human interpreter) takes the foreign language which would be that of the programming language and turns it into the machine code. Both of these programs take a high-level programming language and translates them into the machine code, but the interpreter is slower to translate than the compiler because of the fact it processes and interprets each statement many times.
What programming language is GOOGLE developed in?
C++ and Java are the main languages for production. Search is mostly written in C++, while a lot of the ads infrastructure is written in Java. Python is used as glue, for things like development tools and administration tools. There's a lot of other random languages here and there though - there are projects that use everything from Haskell to perl.
Google also has some of their own languages that exist only within Google, such as sawzall.
How do you convert bcd to ascii hex code?
Multiply by 16.
ANSWER: The answer is bcd 11 = 3 111 = 7 1111 i= F
01111 =E and so foirth
How can a value from the derived class be assigned to a variable in base class?
Remember that derived classes can access the public and protected members of their base class, but none of the private members. If the member variable in the base class is protected (rather than private), then the derived class can assign it directly. However, this is bad style in OOP as it undermines data-hiding. A protected mutator (set accessor) would be a better option.
Which industries is COBOL still commonly used?
Banks & Credit Card, Insurance, Airlines, Federal, State and local Govenments. Over 80 percent of all code being used in the US is written in COBOL.
Program to find factorial of a number using recursion?
#include<conio.h>
#include<stdio.h>
void main()
{
clrscr();
int i=1,fact=1,n;
printf("enter a no.");
scanf("%d"n);
while(i<=n)
{
fact=i*fact;
i++;
}
printf("factorial=%d",fact);
getch();
}
How do you write a c program using functions and array?
Eg:
int main (int argc, char **argv)
{
int i;
printf ("array argv has %d elements:\n", argc);
for (i=0; i return 0; }
Indentation is used to make programming code easier to read?
To make the code easier to read for you and other programmers that might view your work.
7-bit code is an encoding scheme that uses just 7 bits. 7-bit encoding allows positive values in the range 0 through 127. ANSI is a 7-bit encoding scheme. When used on an 8-bit system, bit 7 is always zero (where bit 0 is always the least significant bit). Bit 7 is used by the ASCII extended character set, where the first 127 characters are the same as those defined by the ANSI character set.
7-bit encoding was often used in early tele-printing where bit 7 was not needed. In this way, they could encode eight 7-bit characters into a 56-bit package which could be transmitted and decoded by the 7-bit teleprinter -- the idea being that the fewer bits you transmit, the quicker it will be to send the data across a telephone line.
Workflowsoftware (business process management) is an integrated collection of critical software technologies that enables the control and management of business processes.
Workflow software emphasizes business user involvement in the entire business process improvement life cycle, from design through implementation, deployment, monitoring and ongoing optimization. Instead of reducing relience on employees, BPM - Business Process Management software emphasizes the added value of employee activity coordidantion and making their business activities tranparent and auditable
Business Process Management Suites enable business stakeholders to monitor all interactions between human, system and information resources and optimise behavior to get the most out of dynamic market events and improve business performance outcomes.
Workflowsoftware is a model-driven workflow environment that makes the model executable, while keeping the model as the central focus for future process changes. The graphical model is actually metadata that is translated by software into the executed process dynamically.
Workflowsoftware supports the complete business process improvement cycle, from definition to implementation, monitoring and analysis, and through ongoing optimization.
Computer programming vs algorithm?
An algorithm describes the finite procedural steps required to solve a problem. Algorithms are typically written so humans can easily understand those steps. Computer programming is the means by which a computational problem is converted into executable code. This often entails the development of algorithms which must be converted from the human-readable form into native machine code, typically using high-level programming languages to produce the abstract, human-readable source code, and compilers or interpreters to produce the machine-readable code.
Is Assembly-language programs are written using binary codes?
Assembly language allows the developer to have almost total control over what the sequence of instructions will be when a program executes. A compiler tries to translate a high level language such as C++ into a series of instructions, but a good assembly language programmer may be able to optimize the sequence when a compiler cannot.
Primarily assembly language is used for speed and optimal machine code.
a layoff, especially a temporary one, from a place of employment.
What are the differences between QBasic and FORTRAN Programming language?
PROGRAMMING is a process of developing computer program.While FOTRAN means formula translation which translate math formula into code in high level programming language.
What is the definition of circular queue?
A queue is simply a FIFO i.e first in first out. In queue we've front and rear. Front is the initial or first location of the queue whereas rear indicates the last entry location in the queue. In the circular queue the location of front and rear will be the same IF the total space of the circular queue is utilized. Each element has its position no. for insertion , if we set the 5th element as the front element then after every insertion the ptr indicates the 5th element as front. in deletion, the fifth element is deleted every time it is the rear position. after deletion of an element the queue rotates and every time the rear indicates the 5th element of the circular queue. and every time the 5th location element is deleted.
What are the application of mathematics in international relations?
In business mathematics are applied in various instances. To start, Accounting, which provides basic needs of profit, payroll, and logistics. Secondly, engineering and statistics. They aid in providing company with a dissected approach to information.
