Object-Oriented Programming Object Oriented programming is a programing model that is based upon data and object. Classes Classes are the blueprint of objects. Now you will think about what actually blueprints are. Blueprints are actually a design or plan to build something. Let's take an example like the map is detail plan of house classes are detail plan in Object-Oriented programming. let's give you an example of a class on java so that you can unferstand. public class Car { int horsePower; String name; String color; String Company; } public class Sample { public static void main(String[] args) { Car car; Car mehran; } } Class name always start with capital letters . It is a good practice to name classes . We will later learn how this is good. So in the above class Car is the name of the class and horsePower , name and color are properties of class, Which we can have any of any car. If you see the main of your progra