Related: Top 50 OOPs Interview Questions (With Example Answers) 2. For example, a driver may not know how the manufacturer developed the car but knows all the functions the car has and actions it can perform.' Methods and fields or properties in programming language represent actions and attributes.Īn object does not show the implementation and only reveals the functionalities. For example, a car that can perform actions, like start and acceleration and has attributes, like colour and torque. These objects are just like any object in the physical world. When a programmer uses objects to develop a system, it is object-oriented programming. While answering this question, clearly define what OOPs is and explain it with the help of an example.Įxample: 'OOPs stands for object-oriented programming system and you can develop many computing languages using this concept. Through this question, they intend to test a candidate's broad understanding of the subject. This is the first question interviewers may ask during the Python OOPs interview. Here are some important Python OOPs interview questions with example answers that you may consider preparing for your upcoming job interview: 1. Related: How To Become A Python Developer (With Skills And Duties) Python OOPs Interview Questions With Sample Answers In this article, we explore different python OOPs interview questions and their example answers to help you model your own. Learning in detail about interview questions on OOPs in Python can help you prepare better for a job interview. OOPs is a programming concept that uses objects to develop a system, where these objects can perform certain actions and have many attributes. Here, "Mountain Bike" is passed to the name parameter of _init_().OOPs is an abbreviation of object-oriented programming system, and Python is a computer language that you may characterise under the OOP methodologies. If we use a constructor to initialize values inside a class, we need to pass the corresponding value during the object creation of the class. We have used the self.name to refer to the name attribute of the bike1 object. The constructor above initializes the value of the name attribute. Here, _init_() is the constructor function that is called whenever a new object of that class is instantiated. However, we can also initialize values using the constructors. Finally, the statement inside the method is executed.Įarlier we assigned a default value to a class attribute, class Bike: Notice that we have also used the object to call the method inside the class, study_room.calculate_area() We then used the object to assign values to attributes: length and breadth. Here, we have created an object named study_room from the Room class. In the above example, we have created a class named Room with: Print("Area of Room =", self.length * self.breadth) A Python Function defined inside a class is called a method. We can also define a function inside a Python class. In the above example, we have created two objects employee1 and employee2 of the Employee class. # access attributes and assign new values Here, we have used bike1.name and bike1.gear to change and access the value of name and gear attribute respectively.Įxample 1: Python Class and Objects # define a class notation to access the attributes of a class. Now, we can use this object to access the class attributes. For example, suppose Bike is a class then we can create objects like bike1, bike2, etc from the class. Note: The variables inside a class are called attributes.Īn object is called an instance of a class.
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