javalearnings.hashnode.devVPC (Virtual Private Cloud)✅ What is a VPC in AWS? A Virtual Private Cloud (VPC) is like a private, isolated network inside AWS where you can launch your resources (EC2, RDS, etc.) securely. It gives you full control over networking (IP ranges, subnets, routing, firewalls). ...Aug 27, 2025·3 min read
javalearnings.hashnode.dev🧠 Understanding Machine Learning Types with Real-Life AnalogiesMachine Learning (ML) is one of the most fascinating and fast-growing fields in tech. But when you're just starting out, terms like Supervised, Unsupervised, Semi-Supervised, and Reinforcement Learning can sound pretty overwhelming. Don’t worry — in ...Jul 9, 2025·3 min read
javalearnings.hashnode.devException Handling Rules for Parent and Subclass in Java❓ Ever wondered why subclass methods can throw runtime exceptions but not new checked ones when overriding a parent method? You’re not alone. It’s a common confusion among Java learners. But don’t worry — in this post, we’ll simplify it using real-wo...Jul 3, 2025·4 min read
javalearnings.hashnode.devJava Type Casting🧠 What is Type Casting? In Java, type casting means converting a variable of one data type into another. Java offers two types of casting: Widening Casting (automatically) — converting a smaller type to a larger type Narrowing Casting (manually) —...Jul 3, 2025·3 min read
javalearnings.hashnode.devSingle Responsibility Principle (SRP)🧠 What is the Single Responsibility Principle (SRP)? The Single Responsibility Principle says:A class (or method) should have only one reason to change. In plain English: A class should do only one thing A method should do only one action Keep ...Jul 2, 2025·3 min read