Objects in programming are like real things Each of them has different states and behaviors with its own characteristics and nature
>> Program objects provide a number of benefits:
A class is the blueprint from which individual objects are created. contain the defult decleare for any object
>> what is the states and action that object can dell with it.
A group of organisms may share some characteristics and differ in others So to make it easier to deal with and make it more flexible Common traits can be combined into one class from which the other classes inherit
>> The relationship between them is like father (superclass) and sons(subclass), a father can have more than one son, but every son has only one father
>> Subclass can declare new fields that are not in the superclass.
The link between the outside world and the building of the class, its organization and the way it works. Like a group of buttons, we press one of them, and something happens without us knowing the details of its occurrence