Programming Languages
221 articles in this topic
C++ Tutorial: The Complete Learning Path from First Program to STL
Learn C++ in the order that makes difficult ideas manageable. This roadmap gives you six stages, practical checkpoints and a clear route into exam and placement practice.
Updated 21 Jul 20266 min read176 viewsC++
Functions in C: Call by Value vs Simulated Call by Reference and the Swap Question Family
See why a normal C swap changes only local copies, then trace the pointer version and the aliasing, increment, array, struct, and lifetime traps around it.
Updated 20 Jul 20266 min readC
Classic Programs in C, Java and Python
Learn six placement-programming methods through one clean implementation each. The focus is logic, edge cases, complexity and porting, not memorised code.
Updated 20 Jul 20266 min readJava
Python Output-Based Questions: 13 Solved Snippets
Trace 13 compact Python snippets on references, slices and mutation. Each example gives the output first and then explains the object-level reason.
Updated 20 Jul 20265 min read151 viewsPython
String Handling in Java: String Pool, Immutability and Fresher-Test Questions
Where Java strings actually live, why they never change, and how == vs equals() decides service-company output questions. A String pool and heap diagram, a step-by-step worked trace, StringBuilder performance, and four fresher-test output questions with worked answers.
Updated 19 Jul 20266 min readJava