A keyword used to invoke the superclass's constructor or methods from within a subclass.

A mechanism where a class inherits properties and methods from another class (superclass).

When a subclass provides a specific implementation for a method that is already defined in its superclass.

The class whose properties are inherited by another class (subclass).

A class that inherits properties and methods from another class (superclass).

Repeating the same code in multiple places, which can lead to maintenance issues.

Defining multiple methods in the same class with the same name but different parameters.

The actual code that defines how a method or class behaves.

A special method used to initialize objects of a class.

To call or execute a method or function.

Constructor: initializes the object's state | Method: executes a specific action or behavior.

Overriding: Providing a new implementation in a subclass | Overloading: Providing multiple methods with the same name but different parameters in the same class.

Inheritance: A class acquires properties from a parent class | Composition: A class contains instances of other classes as its members.

'super': Refers to the superclass | 'this': Refers to the current instance of the class.

Superclass: More general, provides base functionality | Subclass: More specific, extends or modifies superclass functionality.

Abstract: Cannot be instantiated, may contain abstract methods | Concrete: Can be instantiated, provides implementations for all methods.

Public: Accessible from anywhere | Private: Accessible only within the class.

Compile-time: When the code is translated into machine code | Runtime: When the code is executed.

Procedural: Code is organized into functions | Object-oriented: Code is organized into objects with data and methods.

Class: Blueprint for creating objects | Object: Instance of a class.

To call the superclass's event handling methods when creating custom components.

To create specialized game entities (e.g., enemies, characters) that inherit common properties from a base class.

To customize query execution strategies for different database engines.

To create different types of processes or threads that inherit common functionalities from a base class.

Using component libraries and frameworks to avoid rewriting common UI elements and functionalities.

A base 'Vehicle' class can be extended to create 'Car', 'Truck', and 'Motorcycle' classes, each inheriting common properties but having unique attributes.

A base 'SortAlgorithm' class can be extended to implement 'BubbleSort', 'MergeSort', and 'QuickSort', each overriding the 'sort' method with its specific logic.

A base 'BankAccount' class can be extended to create 'SavingsAccount' and 'CheckingAccount' classes, each with its own constructor to set initial balances and interest rates.

A base 'Employee' class can be extended to create 'Manager', 'Developer', and 'Analyst' classes, each inheriting common properties but having unique roles and responsibilities.

A base 'PaymentMethod' class can be extended to implement 'CreditCardPayment', 'PayPalPayment', and 'BankTransferPayment', each overriding the 'processPayment' method with its specific logic.