INTEG FINALS

Inheritance

The principle of object-oriented programming that allows the defining of a child class that reuses or inherits the behavior of a parent class.

Derived class or subclass

The inheriting class that inherits from another class.

Base class or superclass

The existing class whose members are being inherited.

Single inheritance

A feature of C# where a subclass can only inherit from a single superclass.

Transitive inheritance

The concept that members of a class can be inherited by derived classes through another derived class.

Namespace

A container that holds classes, such as Person and Student, to organize code.

Private members

Members of a base class that can be inherited by a derived class but are not accessible.

Protected members

Members of a base class that are inherited and accessible by derived classes.

Protected keyword

A keyword used to declare a protected member.

Calling base class constructors

The process of invoking constructors of a base class when creating instances of a derived class.

Base keyword

Used in C# to specify which base class constructor to invoke when creating instances of the derived class.

Method overriding

The ability of a derived class to inherit and redefine methods from its base class.

Overriding method

Declaring a method in a subclass that has the same name as a method in its parent class.

Virtual modifier

Specifies that a derived class can override a method in the base class.

Override modifier

Required to override a virtual method from the base class.

Abstract class

A base class that cannot be instantiated.

Abstract keyword

Used to declare an abstract class.

Abstract method

A method header that has no implementation, meant to be implemented by derived classes.

Polymorphism

The ability to present the same interface for different data types.

Compile time polymorphism

Also known as static polymorphism, implemented using method overloading.

Method overloading

The ability to have multiple methods with the same name but different parameters.

Early binding

When a method is bound to an object at compile time.

Runtime polymorphism

When the method to execute is determined at runtime.

Late binding

Another term for dynamic polymorphism, determining the method to call at runtime.

Method overriding (as runtime polymorphism)

Achieved when a derived class overrides a method from its base class.

Interface

A contract that contains method signatures, properties, and events.

Implementing class

The class that provides the implementation for interface members.

Instantiation of interface

Indicates that interfaces cannot be instantiated and only contain signatures.

Interface keyword

The keyword used to define an interface in C#.

Interface naming convention

A common practice is to start interface names with a capital I.

Interface member access

Members of an interface are public by default.

Colon symbol (:) for implementing

Used to indicate that a class implements an interface.

Matching method signature

The implementation in a class must match the signature in the interface.

Interface implementation rule

Ensures that all declared methods and properties in an interface are implemented.

Multiple interface implementation

A class can implement multiple interfaces while inheriting from only one base class.

Syntax for multiple interfaces

The colon (:) symbol is used to implement multiple interfaces in a comma-separated list.

Interface field restriction

Interfaces cannot contain instance variables or fields.

Interface property

A property that can manage a private data member of a class.

Property declaration syntax in interface

The syntax used to declare read (get) and write (set) properties in an interface.

Purpose of accessors in interface

Indicates that properties are read-write.