Coding & Skills
161 articles in this topic
Structures and Unions in C: Padding, Alignment and Worked sizeof Problems for GATE
Calculate structure and union sizes byte by byte, see where padding enters, and learn how member order changes the result.
React Interview Questions for Freshers: Hooks, Reconciliation and the State Choices That Get Tested
Fresh React interviews are won by tracing renders, not reciting definitions. Learn the stale-closure trap, stable keys and a practical state-management decision rule.
Java 8 to Java 21 Features Interviewers Actually Ask: Streams, Records, Sealed Classes and Virtual Threads
Learn the modern Java features that lead to real interview follow-ups, with small code examples, version boundaries and the limits a strong answer should mention.
Python Interview Questions for Freshers 2026: Core Language, Data Structures and Coding
Prepare concise, accurate answers to Python fresher interview questions, then test your object model on mutable defaults, complexity, coding patterns and output traps.
Minimum Spanning Tree for GATE: Kruskal and Prim Numericals with Unique-MST Questions
Run Kruskal and Prim on the same weighted graph, verify their common cost, and use cut, cycle, and equal-weight reasoning to answer uniqueness questions.
Arrays in C: Declaration, Initialization and Worked Examples
Learn how C arrays behave through exact contents, safe loop bounds, function calls and two-dimensional traversal. A complete program traces sum, average and maximum.
Object Oriented Technology Explained: Four Pillars, Worked Java Examples, GATE and Interview Patterns
Build object oriented technology on one running Java example. Learn the four pillars, trace exact outputs, and separate overloading from overriding.
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.
Approaches to AI: The Four Approaches, a Worked Rational-Agent Example, and How Exams Test Them
Separate the four classic approaches to AI, score a rational vacuum agent step by step, and learn the distinctions that matter in exams and interviews.
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.
HTML Interview Questions for Freshers: Semantic Tags, Forms and the Attributes That Get Tested
Learn the HTML details interviews actually probe, from semantic landmarks and form submission to script loading, labels, and accessibility.
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.