C++

How-tos How to Declare 2D Array Using new in C++ This article explains how to declare a 2D array using the new operator in C++. Learn the step-by-step process, including memory management and accessing elements. Perfect for … ↗ How-tos How to Use a PI Constant in C++ This article introduces how to use the constant value of PI in C++. Learn various methods to define and implement PI in your C++ programs, including using constant variables, the … ↗ How-tos How to Print Numbers With Specified Decimal Points in C++ This article introduces how to print numbers with specified decimal points in C++. Learn various methods, including using std::fixed, std::setprecision, and printf for formatting. … ↗ How-tos How to Loop Over an Array in C++ This article provides a comprehensive guide on how to loop over an array in C++. Learn various methods including for loops, while loops, and range-based for loops with clear … ↗ How-tos How to Trim a String in C++ This article demonstrates how to trim a string in C++. Explore various methods including using std::string::erase, find_first_not_of, and regular expressions. Learn to clean your … ↗ How-tos How to Reverse a String in C++ This article introduces how to reverse a string in C++. Explore various methods including using the Standard Library, loops, and recursion. Each method is explained with clear code … ↗ How-tos How to Use setprecision in C++ This article introduces how to use the setprecision method in C++. Learn how to format floating-point numbers effectively with clear examples and explanations. Discover the … ↗ How-tos How to Declare a Global Variable in C++ This article introduces how to declare a global variable in C++. Learn the advantages and disadvantages of global variables in C++, best practices for their use, and how to … ↗ How-tos How to Convert ASCII to Char in C++ This article introduces how to convert ASCII values to characters in C++. Learn various methods such as type casting, character arithmetic, and function encapsulation. With … ↗ How-tos How to Concatenate Two Strings in C++ This article introduces how to concatenate two strings in C++. Discover various methods, including using the + operator, append() method, and sprintf() function. Learn the … ↗ How-tos How to Change Console Color in C++ This article demonstrates how to change console color in C++. Discover methods to customize your console output using the Windows API or ANSI escape codes. Enhance user experience … ↗ How-tos How to Clear the Console in C++ This article demonstrates how to clear the console in C++. Explore various methods including system commands for Windows and Linux, and learn about ANSI escape codes for a more … ↗ How-tos How to Dynamically Allocate an Array in C++ This article introduces how to dynamically allocate an array in C++. Learn the methods using the new operator and std::vector, complete with code examples and explanations. … ↗ How-tos How to Use Dynamic Cast in C++ Learn how to use dynamic cast in C++ effectively with this comprehensive guide. This article covers the syntax, practical examples, and the pros and cons of dynamic casting. … ↗ How-tos How to Return 2D Array From Function in C++ This article demonstrates how to return a 2D array from a function in C++. Explore various methods including pointers, std::vector, and structs, along with clear code examples and … ↗ How-tos How to Remove Element From Vector in C++ This article demonstrates how to remove an element from a vector in C++. Learn various methods such as using erase(), remove(), and custom loops to manage your vector data … ↗ How-tos How to Check if Pointer Is NULL in C++ This article introduces how to check if a pointer is null in C++. Learn various methods, including using if statements, pointer arithmetic, and the ternary operator. Each method is … ↗ How-tos How to Parse Int From String in C++ This article demonstrates how to parse an int from a string in C++. Discover various methods, including std::stoi and std::stringstream, to convert strings to integers safely and … ↗ How-tos How to Read File Char by Char in C++ This article demonstrates how to read a file character by character in C++. Explore various methods using C++ file handling techniques, including fstream and C-style file … ↗ How-tos How to Generate Random Number in Range in C++ This article introduces how to generate a random number in a given interval in C++. Learn various methods using the C++ Standard Library, including generating integers and … ↗ How-tos How to Write to File in C++ This article demonstrates how to write to a file in C++. Learn about file streams, different file modes, and see clear examples to effectively manage file operations in your C++ … ↗ How-tos How to Reverse Array in C++ This article demonstrates how to reverse an array in C++. Explore various methods including loops, the STL's `std::reverse`, and recursion. Learn through clear examples and … ↗ How-tos How to Use the Modulo Operator in C++ This article introduces how to use the modulo operator in C++, covering its applications in checking even or odd numbers, implementing cyclic behavior, and utilizing it in … ↗ How-tos How to Create Vector of Pointers in C++ This article demonstrates how to create a vector of pointers in C++. Learn about vectors, pointers, memory management, and smart pointers in C++. With clear examples and … ↗