Programming Languages
216 articles in this topic
C to C++ Transition: Syntax Changes, Classes and Runnable Examples
Move a working C record into an encapsulated C++ class, then replace common pointer, buffer, and allocation patterns with clearer C++ alternatives.
Updated 16 Aug 20267 min readC
JavaScript Promises and async/await Explained: Error Handling, Execution Order, and Output Questions
Build a precise call-stack and queue model, use it to predict six output lines, and see why one missing await can move a rejection beyond try/catch.
Updated 15 Aug 20266 min readJava
Python Tuples Tutorial: Packing, Unpacking, Methods and Examples
Learn how Python tuples work through runnable examples, a fixed-record route program, precise error fixes and four predict-before-running exercises.
Updated 15 Aug 20266 min readPython
Functions in C: 12 Solved MCQs on Declarations, Definitions and Function Types
Separate a C function's prototype, body and call, then practise the details through 12 explained questions covering parameters, return values and linking.
Updated 14 Aug 20268 min read68 viewsProgramming Languages Survey
Templates in C++: Function and Class Templates with Runnable Examples
Learn how C++ templates turn one type-safe blueprint into reusable functions and classes. Trace deduction, fix compiler errors, and test each idea with runnable examples.
Updated 14 Aug 20266 min readC++
Strings in C Tutorial: Declaration, Input, Functions and Worked Examples
Learn how C strings use character arrays and the null terminator, then practise safe input, traversal, reversal, library calls and capacity checks.
Updated 13 Aug 20266 min readC
Interface vs Abstract Class in Java: Differences, Default Methods and Exam Questions
Replace the old textbook rule with a current comparison, then solve the two-default-method conflict that appears in Java output and compilation questions.
Updated 13 Aug 20267 min readJava
Python Lists Tutorial: Create, Update, Slice and Use Lists with Examples
Learn Python lists through one clear path, from creation and indexing to mutation, comprehensions, copying, and exam-style output questions.
Updated 13 Aug 20266 min readPython
Visual Basic Programming Language: Core Concepts with a Worked VB.NET Example
Connect VB.NET syntax to a real Windows Forms event. Build and trace an invoice calculator that validates text input, applies a discount, and displays the exact result.
Updated 12 Aug 20267 min readProgramming Languages Survey
Map and Set in C++: Runnable STL Examples, Traps and Exercises
Learn when to choose std::map or std::set through complete programs, an event-by-event trace, complexity guidance, common mistakes and practice tasks.
Updated 12 Aug 20266 min readC++
Multidimensional Arrays in C: 2D Arrays, Row-Major Memory and Runnable Examples
Learn how C lays out and traverses fixed-size multidimensional arrays. A complete 3-by-4 sales program connects indexing, totals, addresses and function parameters.
Updated 11 Aug 20267 min readC
Exception Handling in Java: Checked vs Unchecked, finally Traps and Output Questions
Replace guesswork with precise Java exception rules. Trace two classic finally outputs, order catches correctly, and preserve causes when wrapping failures.
Updated 11 Aug 20266 min readJava