C# Strings To represent a sequence of characters, strings are used in C#. It is an object of System.String class. Several operations like concatenation, comparison, getting substring, search, trim, replacement etc, can be performed on C# strings. Comparison between string and String: The string is an alias for System.String class. It is a keyword in … Read more

C# Encapsulation The concept of wrapping data (data members and member functions) into a single unit called class, to prevent alteration of data from outside is called encapsulation in C#. To access or read such data in a fully encapsulated class, the getter functions of the class are used and the setter functions are used … Read more

C# Access Modifiers / Specifiers The keywords used in a C# application to specify the accessibility or scope of variables and functions are called C# Access modifiers or specifiers. There are five types of access specifiers in C#. These are: Public Protected Internal Protected internal Private Any of the specifiers can be used to protect … Read more

C# Namespaces To easily handle an application, too many classes are organized in C# using the Namespaces. The System.Console is used in a simple C# program. Here, System is the namespace and Console is the class. The namespacename.classname can be used to access the class of a namespace. To not use the complete name all … Read more

C# Interface In C#, an interface can be understood as a blueprint of a class. All the methods declared inside the interface are abstract methods, and thus it is similar to an abstract class. The method body is not present in a C# interface. Also, a C# interface cannot be instantiated. A class can’t achieve … Read more

C# Abstract To achieve abstraction in C#, the Abstract classes are used. To hide the internal details and to display only the functionality, the process of abstraction is used in C#. There are two ways to achieve Abstraction: Abstract class and Interface. Abstract methods are necessary for abstraction and are present in the Abstract class … Read more

C# Sealed To apply restrictions on the class and the method in C#, the sealed keyword is used. When created, a sealed class can’t be derived. However, a sealed method can’t be overridden when created. Structs can’t be inherited, because they are implicitly sealed. C# Sealed class: Any class can’t derive a sealed class in … Read more

C# Polymorphism Being a combination of “poly” and “morphs”, the term “Polymorphism” is a Greek word that means many forms. The principal concepts of an object-oriented programming language are an inheritance, encapsulation, and polymorphism. C# supports two types of polymorphism: compile time polymorphism and runtime polymorphism. Compile-time polymorphism: Method overloading and operator overloading are used … Read more

C# Base To access fields, constructors and methods of the base class in C#, the base keyword is used within an instance method, constructor or instance property accessor and not within the static method. C# base keyword: accessing the base class field: The base keyword can be used to access the fields of the base … Read more

C# Method Overriding Method overriding in C# is the process where the derived class defines the same method as defined in its base class. To obtain runtime polymorphism, and to provide a specific implementation of the method is already provided by the base class, the method overriding is used. The virtual keyword is used with … Read more