Coding & Skills
204 articles in this topic
Node.js Interview Questions for Freshers: The Event Loop, Streams, Clustering and Express
Learn the Node.js concepts that expose real understanding: callback order, stream backpressure, multi-core scaling and Express middleware. Includes two exact traces.
Java vs Python for Placements in India 2026: Test Formats, Company Preferences and a Decision Guide
Choose one placement language by test access, DSA fluency and the interview story you want to tell. Then learn just enough of the second language to stay flexible.
Python vs C for TCS NQT: Which Language to Pick for the Coding Section
Choose Python or C for TCS NQT by comparing input speed, code length, execution and your existing practice, then lock the choice with a focused three-week routine.
Java Collections Framework Explained: ArrayList, HashMap and TreeMap
Choose Java collections by their contract and operation cost. What ArrayList, LinkedList, HashSet, HashMap and TreeMap each guarantee, what each costs, and how to say so in an interview.
C++ Programming: Complete Guide to Core Concepts with Worked Examples
Build a connected mental model of C++ through exact traces for references, pointers, virtual dispatch and STL operations, then learn how to check common traps.
Loops in C: for, while and do-while with worked examples
Learn how C loops initialise, test, execute and update. Trace complete programs, diagnose common bugs and practise choosing the right loop.
Artificial Intelligence for GATE: Syllabus Areas, Weightage Pattern and Prep Order
AI is tested through the GATE DA paper, not as a section of GATE CS. See what to study, how recent papers have distributed marks, and which order avoids rework.
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.