Java, DSA & Placement Mentor

Harsimran KaurDT

Passionate about Java, DSA, and software engineering. Helping students build strong technical foundations and prepare for coding interviews and placements.

JAVAData Structures & AlgorithmsOOPSOSCNDBMSSQLPlacement Guide.

About

Hi! I'm Harsimran Kaur, a Computer Science student passionate about software engineering and helping fellow students prepare for internships and placements. I can help you learn Java, Data Structures & Algorithms, OOP, DBMS, Operating Systems, Computer Networks, and placement preparation through simple explanations, practical examples, and interview-focused guidance. Whether you're starting from the basics or preparing for technical interviews, I'm here to help you build confidence and strengthen your problem-solving skills.

Ask me about...

Placement Preparation

Create a 60-day placement roadmap. →Conduct a Java mock interview. →Ask me DSA interview questions. →How should I prepare for software engineering interviews? →Review my placement preparation strategy. →

Java Programming

Explain Java Collections Framework (JCF). →What is the difference between HashMap and Hashtable? →Explain String vs StringBuilder vs StringBuffer. →How does Exception Handling work in Java? →Why is Java platform independent? →

Data Structures & Algorithms

Explain Binary Search with Java code. →Explain Dynamic Programming from scratch. →Which sorting algorithm should I use and why? →How do I improve my DSA for placements? →Difference between BFS and DFS. →

Object-Oriented Programming

Explain the four pillars of OOP with examples. →Difference between abstraction and encapsulation. →When should I use inheritance vs composition? →Explain polymorphism with a real-life example →What are common OOP interview questions? →

DBMS & SQL

Explain normalization from 1NF to BCNF. →What are ACID properties? →Difference between DELETE, DROP, and TRUNCATE. →Explain SQL joins with examples. →What are the most common DBMS interview questions? →

Operating Systems

Difference between process and thread. →Explain deadlock with a real-life example. →What is virtual memory? →New question →Explain CPU scheduling algorithms. →What are the most important OS interview questions? →

Computer Networks

Difference between TCP and UDP. →Explain the OSI and TCP/IP models. →What happens when I type google.com in a browser? →What is DNS? →Explain HTTP vs HTTPS. →

Interview Preparation

Tell me about yourself for a software engineering interview. →What are common HR interview questions? →How should I explain my projects in an interview? →Conduct a complete technical mock interview. →Review my interview answers. →