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Unit Testing in Java – Beginner Friendly Guide Beginner Friendly Unit Testing in Java – A Simple, Beginner Friendly Guide Unit testing is one of the most important skills every Java developer should learn early. It saves time, improves code quality, and is expected in interviews at most modern companies. What is Unit Testing? Unit testing means writing small automated tests that verify whether a specific method or function is working correctly. Each test focuses on one “unit” of behavior. Why Should You Learn Unit Testing? You catch bugs early You write cleaner and modular code You refactor with confidence Most product companies expect basic testing knowledge Tools You Need (JUnit 5) JUnit 5 is the most commonly used Java testing framework. For Maven Projects <dependency> <groupId>org.junit.jupiter</groupId> <artifactId>junit-jupiter</artifactId> <version>5.9.1</ve...

  Machine Coding Round Preparation Guide The Fastest Path to High-Paying Software Engineering Jobs Without Heavy DSA Most candidates think that cracking top tech companies requires mastering very advanced DSA, dynamic programming, graph theory, and hundreds of LeetCode problems. But that is not true for many high-paying companies. A lot of top product companies now prefer Machine Coding Rounds (MCR) instead of traditional DSA rounds. These companies are more interested in • real-world coding ability • clean code • working features • modular design • testing skills • day-to-day development knowledge If you find DSA difficult or boring but enjoy building real applications, this interview format is perfect for you. Let’s explore everything. What is a Machine Coding Round? A machine coding round is a hands-on coding assignment where you need to • Build a mini application • Implement core features • Apply OOP , design patterns , and modular design • Handle edge case...

  ThoughtWorks Interview Preparation Guide for Freshers A Complete Roadmap to Crack a 12 to 14 LPA Package When we talk about high-paying companies that hire freshers in India , ThoughtWorks always comes up among the top names. Known for its strong engineering culture , focus on clean code , and social impact mindset , ThoughtWorks offers a very attractive 12 to 14 LPA package to entry-level software developers. If you are someone who wants to prepare for ThoughtWorks, this guide will walk you through everything you need to know about their interview process, round-by-round strategy, and the best resources to crack it. This blog is part of my series where I cover high-paying tech companies and explain how you can prepare for each one step-by-step. Let’s get started. About ThoughtWorks ThoughtWorks is not just another software company. They are known for ✔ Strong engineering culture ✔ Pair programming ✔ Clean code ✔ TDD (Test Driven Development) ✔ Agile mindset ✔ So...

🧠 Basic Data Structures Every Beginner Should Learn A Simple Guide + Best Free Resources to Get Started When I started learning programming, one advice every senior gave me was: “Learn data structures early. It’ll change the way you think.” They were right. Understanding data structures isn’t just about interviews — it’s about writing cleaner, faster, and smarter code. Even as a beginner, learning the basics can massively improve your problem-solving skills. In this guide, I’ll walk you through the fundamental data structures you should learn first, explained in a simple way. I’ve also shared the best free resources where you can learn each one properly. Let’s get started 👇 🌱 What Are Data Structures? A data structure is simply a way to organize and store data so you can use it efficiently. Think of them like containers: Some are great for fast searching Some are best for inserting and deleting Some maintain order Some don’t As a beginner, mastering ev...

🧠 20 Beginner Coding Problems to Build Logic and Confidence When I first started learning to code, I quickly realized that writing syntax is the easy part. The real challenge is thinking like a programmer . Logic-building comes from practice, and the best way to practice is by solving small, meaningful coding problems that train your brain to break down problems into steps. If you already know the basics like variables , loops , conditionals , and functions , this list is perfect for you. Let’s start simple and gradually move from easy to moderate problems 👇 💡 How to Practice Effectively Before you dive in: ✍️ Try to solve each problem yourself first before checking the logic. 🔁 Practice dry runs and trace how your program flows. 🧩 Don’t rush! Understanding why something works matters more than how fast you finish it. 💬 Keep notes on new ideas or patterns you discover. 🧩 Easy Level Problems 1. Print “Hello, World!” Problem: Write a program to print “Hello, World!”. Lo...

🚀 Ultimate Learning Path for Aspiring Software Engineers Breaking into software engineering can feel overwhelming — especially when you’re just starting out. But with the right plan and structured resources, you can go from absolute beginner to job-ready developer faster than you think. Here’s a simple, practical roadmap I highly recommend 👇 🧩 Step 1: Start with Easy Coding Questions If you’re an absolute beginner , don’t rush into complex data structures yet. Begin with easy coding problems — the goal is to build confidence and learn to convert your thoughts into code . 👉 Focus on: Practicing syntax and logic flow Understanding problem statements Writing clean, working code on your own This stage will strengthen your fundamentals and make your thinking-to-code conversion faster. 💡 Step 2: Master the Basics with Blind 75 Once you’re comfortable with basic coding, move to the legendary Blind 75 list — a carefully curated set of questions covering all cor...

My Top Service-Based IT Company Picks 1. ThoughtWorks Career portal link: ThoughtWorks Careers ( Thoughtworks ) Why it’s a strong recommendation: Global leader in tech consulting, long history of working on interesting software engineering problems (architecture, agile, DevOps, data). ( Thoughtworks ) Emphasis on developer careers, technical excellence and continuous learning (which fits your “core development & growth” criterion). Good environment to escape the “just maintenance / no learning” trap – you’ll likely work on meaningful projects. Tip: Make sure your fundamentals (coding, systems design, DevOps awareness) are solid before applying. 2. Equal Experts Career portal link: Equal Experts Join Us ( Equal Experts ) Why it’s a strong recommendation: They emphasise craftsmanship, flat structure, experienced engineers working in small teams. ( Equal Experts ) Good for someone who wants to do real software development (not just “body-shopping” or pu...

How to Apply for a Software Engineering Job (and Actually Get a Call Back) Landing a software engineering job isn’t just about having strong technical skills — it’s also about how you present those skills. Many skilled developers never get interview calls simply because their applications fail to stand out. In this blog, we’ll break down how to apply strategically so that recruiters notice you and your chances of getting a callback increase dramatically. 1. Understand What Recruiters Really Look For Before you hit “Apply,” it’s crucial to understand what hiring managers value most: Relevance: Do your skills and experience match the role’s requirements? Clarity: Is your résumé easy to scan and understand in seconds? Proof: Do you show evidence of impact — not just job titles? Recruiters often spend less than 10 seconds scanning a résumé. Make those seconds count by aligning your application to what they’re specifically looking for . 2. Tailor Your Résumé for Ever...