Complete Guide to IPX Ratings — What They Mean and How to Choose
Understanding IPX ratings helps you pick electronics (earbuds, speakers, watches, phones) that survive water exposure — from sweat and rain to f…
Posts
How to Add Click Ripple Effect in Blogger Website
Introduction: Click Ripple Effect Want to make your Blogger website feel more engaging and interactive? A click ripple effect is a s…
Next Steps: Collections Framework, File I/O
On Day 30, we discuss the next steps in your Java learning journey: the Collections Framework and File I/O . These topics prepare you to handle l…
Practice Day: Build a Student Management System
On Day 29, we practice what we’ve learned by building a simple Student Management System . This project uses classes, ArrayLists, methods, loops, a…
Basic Exception Handling (try, catch, finally)
On Day 28, we focus on Exception Handling in Java. Exceptions are runtime errors (like dividing by zero, accessing an invalid index, or using null…
The ArrayList Class (Dynamic Arrays)
On Day 27, we learn about the ArrayList class in Java, which provides a dynamic array that can grow and shrink automatically. Unlike normal arrays…
OOP Pillar: Interfaces (implements keyword)
On Day 26, we focus on Interfaces , another core pillar of OOP in Java. An interface is like a contract that defines methods (without implementatio…
OOP Pillar: Abstraction (abstract classes/methods)
On Day 25, we explore Abstraction , one of the key OOP principles. Abstraction allows us to hide implementation details and expose only the essenti…
OOP Pillar: Polymorphism (Method Overriding)
On Day 24, we learn about Polymorphism , one of the four main pillars of OOP. In Java, polymorphism allows the same method to perform different act…
OOP Pillar: Inheritance (extends keyword) - Java Cource
On Day 23, we learn about inheritance in Java. Inheritance allows a class (called the subclass or child class ) to acquire the fields and methods…
Day 22: Static Keyword (Fields, Methods, and Blocks) - Java Cource
On Day 22, we learn about the static keyword in Java. Static members (fields, methods, and blocks) belong to the class itself rather than to ind…
Practice Day: Create a Book, Car, or BankAccount class
On Day 21, we will practice what we have learned so far (classes, fields, constructors, access modifiers, getters, and setters) by building simple …
Getters and Setters (Encapsulation)
On Day 20, we learn about getters and setters , which are methods used to read and update private fields of a class. This concept is part of encaps…
Access Modifiers (public, private, protected, default)
On Day 19, we learn about access modifiers . Access modifiers in Java determine the visibility and accessibility of classes, fields, and methods. T…
this Keyword and Constructor Overloading? - java cource
On Day 18, we explore the this keyword and constructor overloading . These are essential concepts in Java OOP for writing clean and flexible code.…
Constructors (Default and Parameterized)
On Day 17, we learn about constructors . A constructor is a special method in Java that runs automatically when an object is created. Its purpose i…
Creating Classes, Defining Attributes (Fields)
On Day 16, we learn how to create custom classes and define attributes (also called fields). Attributes represent the data that belongs to an objec…
Introduction to OOP: Classes vs. Objects
On Day 15, we begin Object-Oriented Programming (OOP) in Java. OOP is a way of structuring programs around objects , which represent real-world ent…
Review Day: Core Concepts Review
Day 14 is a review day. So far, you have learned the foundations of Java programming: variables, data types, operators, conditionals, loops, arrays…
Practice Day: Build a number guessing game or a task list
On this practice day, you will apply variables, loops, conditionals, arrays, and methods by building small projects. Choose one challenge or try bo…