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Java for Problem-Solving in Campus Interviews

☕️ 2 min read

Java for Problem-Solving in Campus Interviews


Hey Future hackers! 👋🏼

  • Are you having trouble getting started with Java and using it to write programs and solve problems, especially the ones that are asked in the campus interviews?
  • Do you want to master the Java language and crack campus interviews with Confidence? You landed in the right place!
  • I am Gopal, with over 11 years of Software Industry experience, a geek myself. Find out more About me here.
  • Join me in this 9-week journey and I promise, as you finish it, you will have learnt Java by heart. ❤️
  • You know Reading != Learning and Understanding != Doing.
  • The process of learning is often not sequential. This course is designed in a 🧠Scientifically proven learning style by 🥪 sandwiching Analogies filled Theory, hands-on Practice, Detailed Notes, and Spaced Repetition, so that you learn these concepts quickly, absorb them deeply and remember them for a long time.
  • The Topics we cover in this course are outlined at a high-level in the Course layout. 📜
  • This is a beginner course and therefore makes no assumptions about prior programming experience. All you need is a decent 💻Computer with a modern OS.
  • Learning a skill isn’t enough, you need to Sell Yourself! We shall discuss how you can upload your work on GitHub and help you prepare a strong Resume and profile (Naukri, LinkedIn etc) to bag Software Engineering Interviews from high-paying companies.
  • Finally, let’s not forget to have 🥳 Fun in our journey, using interesting tools, colourful themes, stimulating conversations and cracking creative problems.

Let’s crank it up! ⚡

Course layout 📜

Week-1,2: Break ice with Java

  • Set-up you Dev environment
  • Say hello to the world through Java
  • Packages & Classes — the building block of a Java application
  • Syntax & Keywords - if/else/switch/for/while, public/private/protected
  • Hands-on: A fun project applying all of these
  • GitHub setup

Week-3,4: OOPs! (Object Orientation Programming) with Java

  • What makes up a Class
  • Class vs Object
  • Represent a real-world Object through Java
  • Hands-on: Build an Object-Oriented game
  • Data types and Variables
  • Objects, References and Garbage collection
  • Encapsulation

Week-5,6: A bigger Hands-on Project

  • Understand the requirements
  • Break-down the problem into smaller problems
  • Think on how to apply the concepts we learnt to solve each problem
  • Test end-to-end
  • Find bugs and enhance

Week-7,8: Inheritance

  • What is it?
  • IS-A vs HAS-A
  • Dos and Don’t of Inheritance
  • What is Polymorphism?
  • Overloading
  • Abstract classes
  • Interfaces
  • Constructors

Week-9: Java Collections API

  • List, Set, HashMap, Tree, Queue
  • Hands-on
  • Enums
  • Inner classes
  • Modern features from Java 17
    • Sealed classes
    • Records
  • Hands-on


  • Resume preparation
  • Mock-interviews

Contact Details

Contact me if you are interested to enroll in the course. Thanks

Published 4 Sep 2022

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