Clases y objetos

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Class vs object

A class is a blueprint; an object is a concrete instance. Instantiation creates objects from a class.

Official slides: OOP PDF (Prof. Colombo)

See the Spanish page for full examples and the four OOP pillars (abstraction, encapsulation, inheritance, polymorphism): Clases y objetos.

Interactive exam

OOP introduction

Based on: PROGRAMACION ORIENTADA A OBJETOS — Prof. Maria Ines Colombo

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In OOP, a class is...

A concrete instance A blueprint to create objects Just a global variable A PDF file

Creating an object from a class is called...

Inheritance Instantiation Compilation Encapsulation

An object’s attributes represent...

What the object can do The object’s properties or data System functions only Compile errors

Methods are...

Variables from another program Algorithms tied to the object (what it can do) Comments only Primitive data types

Hiding internal data and exposing only what is needed is...

Polymorphism Encapsulation Inheritance Pure abstraction

Reusing attributes and methods in derived classes is...

Inheritance Switch For Instantiation

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