Programming Languages
216 articles in this topic

Pointers and Functions in C: Runnable Examples from Swap to Callbacks
Follow one object-and-address model through pointer parameters, arrays, returned pointers, callbacks, and a compact exam trace. Each result is worked out before it is run.

JavaScript Basics: Variables, Functions, Arrays and DOM
Learn the language rules behind JavaScript output questions, then follow one complete example from an array of scores to visible DOM nodes.

Loops in Python: for, while, range(), break and continue
Learn to predict Python loop output one pass at a time, choose the right loop, and avoid boundary, update, and list-modification errors.

PHP Learning Roadmap: Core Syntax to a Tested Laravel App
Follow a practical 12-week path from typed PHP and Composer to safe database access, feature tests and a Laravel rebuild, using one application throughout.

C++ Compiler Warnings and Sanitizers: Catch Bugs Early
Build a practical C++ safety net with strict warnings and sanitizer runs. Three small programs show how to find, explain and fix defects before they spread.

Memory Management in C: Stack, Heap, malloc, calloc, realloc and free with a Worked Example
Learn how C object lifetimes, allocation functions, ownership, bounds, and cleanup fit together through a complete resizable-array example.

Inner Classes in Java: Types, Scope Rules and Four Runnable Examples
Learn when Java nested types need an outer object, what they can capture, and how scope resolution works through four runnable programs and one short trace.

Python Loop Patterns and Idioms: A Practical Tutorial
Move beyond manual counters and fragile flags. Learn the Python loop idioms that make iteration, filtering, aggregation, pairing, and search easier to read.

Best Programming Language for Placements: Test Python, Java or C++ in 4 Weeks
Choose a placement coding language with evidence. This four-week trial checks employer support, timed results, explanation skill and debugging comfort before you commit.

C++ Arrays vs std::array vs std::span: Choose the Right Interface
Run the same five integers through raw-array, std::array and std::span interfaces, then choose from their ownership, size and lifetime contracts.

Dynamic Memory Allocation in C: malloc, calloc, realloc and free with a Worked Example
A runnable marks example shows how C requests, initializes, grows and releases runtime storage, with checked byte counts, ownership and safe realloc handling.

JavaScript Strings Tutorial: Methods, Template Literals, and Runnable Examples
Learn strings from their delimiters and zero-based indexes through searching, cleaning, and coercion. Each example is runnable, including a complete input-to-key transformation.