GFacts

72 posts

Top 50 Interesting Unknown Facts about Programming

Last Updated: 30 January 2024

Learning programming can be exciting! As you explore this world, some cool and lesser-known facts can make your experience even more interes ...read more

GFacts

Picked

What will happen if i declare main() in java as non-static?

Last Updated: 27 December 2023

main() method in Java acts as an application's entry point. So declaration must read "public static void main(String[] args)" to work proper ...read more

Why can templates only be implemented in the header file?

Last Updated: 11 December 2023

Templates are a powerful feature in C++ that allows for the creation of generic functions and classes. They provide a way to write code that ...read more

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Why Rand() function Always give the Same Value ?

Last Updated: 29 February 2024

Have you ever wondered why the rand() function always gives the same values each time we compile and run our code? well in this post we are ...read more

Is it Necessary that each Try block must be followed by a Catch block in Java?

Last Updated: 08 December 2023

Have you ever wondered if it is necessary to write a catch statement after try , or what will happen if we don't write catch statement after ...read more

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What is the best way to inject Dependency in Java?

Last Updated: 01 December 2023

You can transform standard Java classes into manageable objects by using dependency injection. Your programs can define dependencies on any ...read more

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When is Doubly Linked List more Efficient than Singly Linked List?

Last Updated: 01 December 2023

Did you know there are some cases where a Doubly Linked List is more efficient than a Singly Linked List, even though it takes more memory c ...read more

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Fastest Searching Algorithm | GFact

Last Updated: 24 January 2024

Pattern searching is a critical operation in the field of computer science, Its applications range from text processing and DNA sequencing t ...read more

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GFact | Why doesn't Greedy Algorithm work for 0-1 Knapsack problem?

Last Updated: 03 October 2023

In this article, we will discuss why the 0-1 knapsack problem cannot be solved by the greedy method, or why the greedy algorithm is not opti ...read more

GFacts

knapsack

GFact | Collatz Sequence

Last Updated: 17 October 2023

Starting with any positive integer N, we define the Collatz sequence corresponding to N as the numbers formed by the following operations:N ...read more

GFact | Storage class of a variable

Last Updated: 17 October 2023

Storage class of a variable determines whether the item has a global or local lifetime. In C, typedef is considered as a storage class like ...read more

GFacts

GFact | Putting a 0 before an integer constant

Last Updated: 17 October 2023

Predict the output of following program. [sourcecode language="C"]#include stdio.hint main() { int x = 012; printf(%d, x); getchar(); ...read more

GFacts

GFact | C standard C99 allows inline functions and variable-length-arrays

Last Updated: 18 October 2023

The C standard C99 allows inline functions and variable-length-arrays. So following functions are valid in C99 compliant compilers. Example ...read more

GFacts

GFact | How to know the IP address(es) of a URL/website?

Last Updated: 18 October 2023

To know the IP address(es) of a URL/website, nslookup can be used at the shell/command prompt (cmd.exe). It works on both types of operating ...read more

GFacts

GFact | (Sizeof) is an operator

Last Updated: 18 October 2023

In C language, sizeof( ) is an operator. Though it looks like a function, it is an unary operator.For example in the following program, when ...read more

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