OOP QUIZ 3

Method

• in programming refers to a set of instructions grouped together within a code block.

Main method

• serves as the starting point for any C# program and is initiated by the common language runtime (CLR) upon program launch.

Method Signature

• Methods are declared in a class, struct, or interface by specifying the access level such as public or private, optional modifiers such as abstract or sealed, the return value, the name of the method, and any method parameters.

Custom Method

• is a user-defined method that contains a specific set of code instructions.

Method Overloading

• in C# allows you to define multiple methods with the same name but different parameter lists within the same class

• This allows the performance of similar operations with different types or numbers of parameters.

Array

• Is declared by specifying the type of its element

• type [ ] array name;

Single-dimensional array

• is a sequence of like elements.

• You access an element via its index.

• The index is its ordinal position in the sequence.

Two dimensional array

• arrays that have more than one dimension

• initialized like “type [ , ] array name”

Jagged Array

• Is an array whose elements are arrays, possibly of different sizes

• is sometimes called an "array of arrays."

• Its elements are reference types and are initialized to null

ArrayList

• stores elements of multiple data types whose size can be changed dynamically.

Linked List

• is a linear data structure where each element (node) in the list is a separate object containing a data element and a reference (link) to the next node in the sequence

Modifiers

• control the access levels and visibility of class members (fields, properties, methods, etc.) within a C# program.

public

• The code is accessible for all classes

Private

• The code is only accessible within the same class

Protected

• The code is accessible within the same class, or in a class that is inherited from that class

Internal

• The code is only accessible within its own assembly, but not from another assembly

Encapsulation

• Means protecting the internal data of a class and controlling how other parts of the program can access or change it

• It is commonly implemented using Private fields, Public properties, Public methods that control behavior

Abstraction

• Means showing only the important features of an object while hiding unnecessary details

• Implemented using abstract classes and Interfaces

Interface

• Defines a set of actions that a class must implement

Inheritance

• Allows one class to reuse the fields and methods of another class.

Polymorphism

• Allows different classes to respond to the same method call in different ways

Class

• Defines the structure of the code

This

• Is a keyword that refers to the current object

• It is commonly used when a field and a parameter have the same name

Method Overriding

• This means that a child class changes the behavior of a parent method

Static Class

• is used without creating an object

• it cannot be instantiated and only contains static members

Sealed Class

• a class that cannot be inherited

Partial class

• This allows one class to be split into multiple files

• The parts of the partial class becomes one class when compiled