Web Reference: Mar 27, 2026 · In Java, classes and objects form the foundation of Object-Oriented Programming (OOP). They help model real-world entities and organize code in a structured way. A class is a blueprint used to create objects that share common properties and behavior. An object is an instance of a class. Java is an object-oriented programming language. Everything in Java is associated with classes and objects, along with its attributes and methods. For example: in real life, a car is an object. The car has attributes, such as weight and color, and methods, such as drive and brake. In this lesson, Ryan discusses a commonly misunderstood and argued about concept in Java, which is also a common interview question: Is Java Pass By Value, or Pass By Reference?
YouTube Excerpt: In this lesson, Ryan discusses a commonly misunderstood and argued about concept in
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