Dec 16, 2025 · 6 min read · In the previous article, we discussed why Java exists and why it still powers large-scale backend systems like netflix even today. Before writing more code or learning frameworks, it is critical to understand how Java actually runs a program. Most de...
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Dec 13, 2025 · 4 min read · A Small College Story In my first year, one night before exams, a few of us were sitting in the hostel room. Books were open but no one was really studying.One friend suddenly said, “Tomorrow OOPs viva hai. If sir asks what is OOPs, I will faint.”We ...
Join discussionOct 28, 2025 · 4 min read · History of Java 1991 → Project started by James Gosling and team at Sun MicrosystemsInitially named "Oak" after a tree near Gosling's officeLater renamed "Green" and finally "Java" after Java coffee 1995 → First public release of Java 1.0Known for "W...
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Jul 6, 2025 · 6 min read · Comprehensive Comparison Table FeatureString 📜StringBuilder ⚡StringBuffer 🔒 Mutability 🔄ImmutableMutableMutable Thread Safety 🛡️Thread-safe (immutable)❌ Not thread-safe✅ Thread-safe (synchronized) Performance 🏎️❌ Slow for concatenations...
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May 8, 2025 · 9 min read · Access modifier For classes, there are only two access modifiers: public and default (no modifier). private is not allowed for top-level classes. Access modifiers control how much access you give to your variables, methods, or classes from other part...
Join discussionApr 9, 2025 · 3 min read · When I started learning Java, one of the first questions I had was "How does Java actually work under the hood?" Sure, we write code in .java files and somehow it runs—but what’s happening behind the scenes? In this blog, I’m going to break it all do...
Join discussionMar 8, 2025 · 5 min read · The Scanner class in Java is one of the most versatile and widely used tools for handling user input. Whether you're building a simple console application or a complex program that requires user interaction, the Scanner class makes it easy to read an...
Join discussionMar 2, 2025 · 3 min read · Calculators are fundamental tools in programming and a great way to practice basic operations and user interaction. In this article, we will build a simple console-based calculator in Java that performs addition, subtraction, multiplication, and divi...
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Feb 20, 2025 · 13 min read · In Java, data types are divided into two groups. primitive data types None - primitive data types Before we learn about data types, let's understand how to declare a variable in Java. This will help you see why we need data types. How to declare ...
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Jan 28, 2025 · 8 min read · Discover how to store and label data like a pro! Introduction Welcome to Day 2 of our Java Refresher series! In Day 1, we explored the basics of Java and wrote our first "Hello, World!" program. Today, we’ll dive deeper into the building blocks of Ja...
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