Fun with Class Relationships

What is a class in OOAD?

• A class is a type of variable used in programming.

• A class is a collection of functions only.

• A class is a method for executing code.

• A class is a blueprint for creating objects that defines attributes and methods.

Can a class have another class inside it?

• Yes, a class can have another class inside it.

• No, a class cannot have another class inside it.

• Only abstract classes can contain other classes.

• Classes can only contain methods, not other classes.

What do we call a class that is made from another class?

• derived class

• base class

• parent class

• subclass

What is the relationship called when one class uses another?

• association

• composition

• inheritance

• aggregation

What do we call it when two classes are very similar?

• Identical classes

• Unrelated classes

• Related classes

• Dissimilar classes

Can a class have many different types of objects?

• No, a class can only have one type of object.

• Yes, but only if the objects are of the same class.

• No, a class cannot have any objects.

• Yes, a class can have many different types of objects.

What is inheritance in OOAD?

• Inheritance is a fundamental concept in OOAD that allows a subclass to inherit attributes and methods from a superclass.

• Inheritance is a method for creating new classes without any relationship to existing ones.

• Inheritance allows a superclass to inherit attributes and methods from a subclass.

• Inheritance is a technique for data storage in databases.

What does it mean when classes are connected?

• Classes are completely independent of each other.

• Classes are related or associated with each other.

• Classes are only connected through inheritance.

• Classes cannot interact with one another.

What is a parent class?

• A parent class is a class that cannot be inherited by child classes.

• A parent class is a class that provides attributes and methods to child classes through inheritance.

• A parent class is a class that only contains methods without attributes.

• A parent class is a class that is only used for data storage without any functionality.

What is a child class?

• A child class is a class that only contains static methods.

• A child class is a class that derives from another class, inheriting its attributes and methods.

• A child class is a class that cannot inherit from any other class.

• A child class is a class that is used to create user interfaces.