Can you explain what is meant by class definition in the context of programming?

In programming, a class is a template or blueprint for creating objects. It defines properties (fields) and behaviors (methods) that the objects of this class will have.

A class encapsulates data and functions related to it, allowing the creation of multiple instances (objects) with the same structure but different values.

Example in Java:

public class Car {
    // properties
    private String model;
    private int year;

    // constructor
    public Car(String model, int year) {
        this.model = model;
        this.year = year;
    }

    // method
    public void drive() {
        System.out.println(model + " is driving");
    }
}

Here, the Car class describes a car with a model and year of manufacture, as well as behavior — driving.