Programming Languages
117 articles in this topic
Exception Handling in C++: try, catch, throw and two runnable examples
Follow two runnable programs to see how C++ exceptions change control flow, select handlers and destroy local objects during stack unwinding.
References in C++: Syntax, Aliasing, and Runnable Examples
Build a reliable mental model of C++ references through state traces, parameter examples, const binding, pointer comparisons, and common error repairs.
Java Tutorial: The Complete Learning Path for Self-Study
Learn Java in the right order, from your first compiled program to OOP, collections, and DSA. Each stage includes a practical target and an honest exit check.
Sets in Python: A Complete Tutorial with Worked Examples
Learn how Python sets store unique values, how each core operation works, and how to avoid the errors that catch beginners, with every output worked through.
TypeScript Tutorial for Beginners: Add Safe Types to JavaScript
Turn a small JavaScript task board into TypeScript step by step. See exactly how the checker catches a bad value and preserves useful type information.
C++ Variables, Scope and Namespaces: Trace Name Lookup Across Three Files
Trace one C++ program across a header and two source files to see exactly how declaration, initialisation, scope, namespaces, lifetime and linkage differ.
Memory Layout of a C Program: Stack, Heap, Data, BSS and Text Explained
Place globals, static objects, literals, local variables, pointers and allocated values correctly using one runnable C program and an illustrative ELF/Linux map.
JavaScript Array Methods: map, filter, reduce and the Interview Problems They Solve
Work through a filter-map-reduce chain and a frequency-table accumulator, then separate non-mutating array methods from the methods that change their input.
Numbers and Arithmetic in Python: Operators, Precision, and Worked Examples
Understand how Python evaluates numeric expressions, from result types and precedence to negative floor division and floating-point comparison. Runnable examples culminate in one complete practice-session calculation.
PHP Tutorial for Beginners: Build a Form-to-Database Request Flow
Follow Asha's registration from an HTML form through PHP validation and a safe MySQL insert, then display the saved row after a redirect.
C++ auto and decltype: Trace Every Deduced Type
Trace what C++ actually deduces when auto, references, const, decltype, and decltype(auto) interact, then confirm each result at compile time.
C++ Setup Tutorial: Install a Compiler and Run Your First Program
Set up a C++ compiler, turn main.cpp into an executable, and learn to diagnose the stage that failed. Two small programs make every command and value concrete.