#Oop

41 questions

• How do classes and objects work in Python?Python#oopMiddle›
• How do inheritance and super() work?Python#oopMiddle›
• What are dunder (magic) methods?Python#oopMiddle›
• What are metaclasses and descriptors?Python#oopSenior›
• What are dataclasses and how does __slots__ help?Python#oopSenior›
• What are the four pillars of OOP?Java#oopJunior›
• How do classes, objects and constructors work?Java#oopJunior›
• What is the difference between an interface and an abstract class?Java#oopMiddle›
• Why must you override equals() and hashCode() together?Java#oopMiddle›
• What are the kinds of nested classes in Java?Java#oopMiddle›
• How do classes and objects work in PHP?PHP#oopJunior›
• How do inheritance, abstract classes and interfaces work?PHP#oopMiddle›
• What are traits and when do you use them?PHP#oopMiddle›
• What are PHP magic methods?PHP#oopMiddle›
• How do enums work in PHP 8.1+?PHP#oopMiddle›
• What is late static binding (static:: vs self::)?PHP#oopMiddle›
• How do classes, constructors and properties work?C##oopJunior›
• How do inheritance and polymorphism work?C##oopMiddle›
• What are interfaces in C#?C##oopMiddle›
• What does "everything is an object" mean in Ruby?Ruby#oopJunior›
• How do classes and objects work in Ruby?Ruby#oopJunior›
• What do attr_accessor, attr_reader and attr_writer do?Ruby#oopJunior›
• What are modules and mixins?Ruby#oopMiddle›
• How do inheritance and method lookup work?Ruby#oopMiddle›
• What is duck typing in Ruby?Ruby#oopMiddle›
• What is Struct and when do you use it?Ruby#oopMiddle›
• What is Object-Oriented Programming?Object-Oriented Programming#oopJunior›
• What are the four pillars of OOP?Object-Oriented Programming#oopJunior›
• What is the difference between a class and an object?Object-Oriented Programming#oopJunior›
• What is encapsulation?Object-Oriented Programming#oopJunior›
• What is abstraction in OOP?Object-Oriented Programming#oopJunior›
• What is inheritance?Object-Oriented Programming#oopJunior›
• What is polymorphism?Object-Oriented Programming#oopJunior›
• What are constructors and destructors?Object-Oriented Programming#oopJunior›
• What are access modifiers (public, private, protected)?Object-Oriented Programming#oopJunior›
• What is the difference between method overloading and overriding?Object-Oriented Programming#oopJunior›
• What is the difference between an interface and an abstract class?Object-Oriented Programming#oopMiddle›
• What is the difference between static and instance members?Object-Oriented Programming#oopMiddle›
• What are generics (parametric polymorphism)?Object-Oriented Programming#oopMiddle›
• When should you use a factory method instead of a constructor?Object-Oriented Programming#designMiddle›
• How does OOP compare to functional programming?Object-Oriented Programming#oopSenior›