Java Programming

OOP in Java 4 min read

9-🚀 Nested Classes and Inner Classes in Java

In Java, classes are usually defined separately.But sometimes, it makes logical sense to define a class inside another class 🧩 This concept is called Nested Classes.…

Read Article →

OOP in Java 3 min read

Java Practice MCQs – Missing Code (Constructors)

✅ Question 1 A) Student s1 = new Student();B) Student s1 = new Student(“Rahul”, 18);C) Student(“Rahul”, 18);D) new Student(“Rahul”, 18); ✅ Question 2 A) Employee e…

Read Article →

OOP in Java 3 min read

Java Practice MCQs – Missing Code Line (OOP Basics)

✅ Question 1 What should replace // Missing Line? A) Student.setData(“Rahul”, 85);B) s1.setData(“Rahul”, 85);C) setData(“Rahul”, 85);D) new Student(“Rahul”, 85); ✅ Question 2 A) show();B) Employee.show();C) e.show();D)…

Read Article →

OOP in Java 4 min read

8-Understanding the static Keyword in Java

Introduction In Java, most things revolve around objects ☕But sometimes, certain members belong not to objects, but to the class itself. That is where the static…

Read Article →

OOP in Java 4 min read

7-Passing and Returning Objects from Methods in Java

Introduction 🧠 Fundamental Concept: How Java Passes Arguments Java is strictly pass-by-value. But here is the important part: 📌 That means:When passing an object to a…

Read Article →

OOP in Java 6 min read

6-OOPs Practice Programs in Java (Exam-Oriented)

Practicing program-based questions is essential for mastering Object-Oriented Programming concepts in Java ☕Most examinations and lab assignments ask questions in a structured, descriptive format, where the…

Read Article →

OOP in Java 5 min read

5-Methods, Method Overloading, and Recursion in Java

In Java, writing programs is not just about using loops, conditions, and variables.The real power of Java comes from organizing logic into reusable units, and that…

Read Article →

OOP in Java 5 min read

4- this Keyword and Object References in Java

Introduction In Java, objects are accessed using references, and many important concepts revolve around understanding which object is being referred to at a given moment 🧠This…

Read Article →

OOP in Java 5 min read

3-Constructors and Object Initialization in Java

Introduction In Java, creating an object is not just about allocating memory — it is also about initializing that memory correctly ☕This responsibility is handled by…

Read Article →

OOP in Java 4 min read

2-Classes, Objects, and Methods in Java

Introduction Java is a class-based, object-oriented programming language, and everything in Java revolves around classes and objects ☕To write clean, structured, and maintainable Java programs, it…

Read Article →