What are Common C# Commands?
C# is a powerful and versatile programming language that is used to create a wide variety of applications. It is an object-oriented language, which means that it allows developers to create objects and manipulate them in a variety of ways. C# commands are the instructions that are used to control the behavior of the objects and the program itself. In this article, we will explore some of the most common C# commands and how they are used.

Introduction to C#
C# is a modern, object-oriented programming language developed by Microsoft. It is a powerful language that is used to create a wide variety of applications, from web applications to desktop applications. C# is based on the .NET framework, which provides a rich set of libraries and tools for developers to use.

C# is a strongly-typed language, which means that all variables must be declared with a specific type. This ensures that the code is more robust and less prone to errors. C# also supports a variety of data types, including integers, strings, and objects.

C# Commands
C# commands are the instructions that are used to control the behavior of the objects and the program itself. The commands are written in the form of statements, which are executed in the order they are written. The most common C# commands are listed below.

Abstract
The abstract keyword is used to declare an abstract class. An abstract class is a class that cannot be instantiated, but can be inherited by other classes. Abstract classes are used to provide a common base for other classes to inherit from.

As
The as keyword is used to cast an object to a different type. This is useful when working with objects that have multiple types. For example, a string object can be cast to an integer object using the as keyword.

Break
The break keyword is used to exit a loop or switch statement. It is used to break out of the loop or switch statement and continue execution of the program.

Byte
The byte keyword is used to declare a variable of type byte. A byte is an 8-bit signed integer that can hold values from 0 to 255.

Case
The case keyword is used in a switch statement to specify a particular case. A switch statement is used to execute a block of code based on a particular value.

Char
The char keyword is used to declare a variable of type char. A char is a 16-bit Unicode character that can hold any character from the Unicode character set.

Decimal
The decimal keyword is used to declare a variable of type decimal. A decimal is a 128-bit floating-point number that can hold values from -79,228,162,514,264,337,593,543,950,335 to 79,228,162,514,264,337,593,543,950,335.

Default
The default keyword is used in a switch statement to specify the default case. The default case is executed if none of the other cases match the value being tested.

Else
The else keyword is used in an if statement to specify the code to be executed if the condition is false.

Event
The event keyword is used to declare an event. An event is a notification that is sent when a particular action occurs. Events are used to allow objects to communicate with each other.

Finally
The finally keyword is used in a try-catch statement to specify the code to be executed regardless of whether an exception is thrown or not.

Float
The float keyword is used to declare a variable of type float. A float is a 32-bit floating-point number that can hold values from -3.402823e38 to 3.402823e38.

For Each
The for each keyword is used to iterate over a collection of objects. It is used to loop through a collection of objects and perform an action on each object.

Goto
The goto keyword is used to jump to a different part of the code. It is used to jump to a different part of the code without having to execute the code in between.

If
The if keyword is used to create an if statement. An if statement is used to execute a block of code if a particular condition is true.

Int
The int keyword is used to declare a variable of type int. An int is a 32-bit signed integer that can hold values from -2,147,483,648 to 2,147,483,647.

Lock
The lock keyword is used to create a critical section. A critical section is a section of code that can only be accessed by one thread at a time.

Long
The long keyword is used to declare a variable of type long. A long is a 64-bit signed integer that can hold values from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.

New
The new keyword is used to create a new instance of an object. It is used to create a new instance of a class or a struct.

Null
The null keyword is used to represent a null value. A null value is a value that has no value.

Object
The object keyword is used to declare a variable of type object. An object is a reference type that can hold any type of value.

Out
The out keyword is used to pass a variable by reference. It is used to pass a variable to a method so that the method can modify the variable.

Private
The private keyword is used to declare a member of a class as private. A private member can only be accessed by other members of the same class.

Public
The public keyword is used to declare a member of a class as public. A public member can be accessed by any other class.

Read-Only
The read-only keyword is used to declare a member of a class as read-only. A read-only member can only be read, not written.

Return
The return keyword is used to return a value from a method. It is used to return a value from a method to the calling code.

Short
The short keyword is used to declare a variable of type short. A short is a 16-bit signed integer that can hold values from -32,768 to 32,767.

SizeOf
The sizeof keyword is used to get the size of a data type. It is used to get the size of a data type in bytes.

String
The string keyword is used to declare a variable of type string. A string is a sequence of characters that can hold any type of character.

Switch
The switch keyword is used to create a switch statement. A switch statement is used to execute a block of code based on a particular value.

This
The this keyword is used to refer to the current instance of a class. It is used to refer to the current instance of a class when accessing members of the class.

Try
The try keyword is used to create a try-catch statement. A try-catch statement is used to handle exceptions that may be thrown during the execution of a program.

Unchecked
The unchecked keyword is used to disable overflow checking. Overflow checking is used to detect when a value is too large or too small for a particular data type.

Using
The using keyword is used to create a using statement. A using statement is used to automatically dispose of an object when it is no longer needed.

Virtual
The virtual keyword is used to declare a virtual method. A virtual method is a method that can be overridden by a derived class.

Void
The void keyword is used to declare a method that does not return a value. It is used to declare a method that does not return a value to the calling code.

Conclusion
C# is a powerful and versatile programming language that is used to create a wide variety of applications. C# commands are the instructions that are used to control the behavior of the objects and the program itself. In this article, we have explored some of the most common C# commands and how they are used.