What is an instance of a specific class?

An instance of a specific class in object-oriented programming is an actual object that is built from that class. The class defines the properties and behaviors that the object can have, while the instance is the actual object created from the class blueprint.

Here are the steps to understand this:

1. Class: A class is a blueprint or template that describes the behaviors and states that objects of its type support. For example, a class named "Car" might have properties like color, model, and make, and behaviors like start, stop, and accelerate.

2. Object: An object is an instance of a class. It's a concrete entity based on a class and is sometimes referred to as an instance of a class. For example, a specific car like a red Toyota Corolla is an instance or object of the "Car" class.

3. Creating an instance: When you create an instance of a class, the system allocates memory for every instance variable declared in the class. Each instance gets its own copy of all the instance variables. For example, if you create another car, say a blue Honda Civic, it will have its own color, model, and make properties separate from the red Toyota Corolla.

4. Using an instance: Once an instance of a class is created, you can use the dot notation to access the object's properties and methods. For example, if you have a method in the "Car" class to start the car, you can call it on the instance of the car like this: redToyotaCorolla.start().

So, an instance of a specific class is a realization of that class with actual values assigned to the properties defined in the class.